Automatic feeding machine for compressed towels and feeding method thereof

Abstract

The present invention discloses an automatic feeding machine for compressed towels and a feeding method thereof, comprising a base, a conveying and sorting device, a lifting and sucking device, a spreading conveying device, a unloading device and a controller; the conveying and sorting device is horizontally mounted on the right end of the base for conveying a stack of towels, the lifting and sucking device is longitudinally mounted in the middle of the base, connected with the left end of the conveying and sorting device on the right side, and connected with the spreading conveying device on the left side, for lifting the stack of towels on the conveying and sorting device upwards, and adsorbing and transferring the towels piece by piece to the spreading conveying device; the spreading conveying device is horizontally mounted on the left end of the base, and the two ends are respectively connected with the spreading conveying device and the unloading device, for conveying the towel pieces input by the lifting and sucking device to the unloading device in sequence, and the unloading device is vertically mounted at the discharge end of the spreading conveying device for inserting the towel pieces into the stamping die; the present invention realizes automatic transmission and loading, layer-by-layer adsorption and transfer, and front and back cycle alignment and unloading, thereby avoiding safety accidents caused by manual fatigue.

Description

Technical Field

[0001] The present invention relates to the technical field of compressed towel feeders, and in particular to an automatic compressed towel feeder and a feeding method thereof. Background Art

[0002] Compressed towels are popular among business travelers because of their small size, easy packaging, transportation and carrying, and space saving, and the market demand for them is very broad.

[0003] The utility model patent with the authorization number CN215882696U provides a towel compression machine: "It includes a frame, a table is provided on the frame, a turntable mechanism is fixed at the center of the table, a stamping die is provided on the upper surface of the turntable mechanism, a compression ejection mechanism is provided above the stamping die, an automatic positioning and hole alignment mechanism is provided on one side of the turntable mechanism, a turntable upper push mechanism is provided below the turntable mechanism, a feeding mechanism is provided on the side of the frame, a control device is installed on one side of the frame, and the compression ejection mechanism and the turntable upper push mechanism are connected to the hydraulic station through an air pipe; the utility model is provided with a control device, a turntable mechanism, a compression ejection mechanism, an automatic positioning and hole alignment mechanism, and a turntable upper push mechanism. Except for the feeding action, the rotation, positioning and hole alignment, stamping, pushing and other actions are all automatically completed by the machine, with a high degree of automation and good compression quality." The stamping die of the towel compressor (such as Figure 2 The machine (as shown) is provided with two rows of punched holes that run vertically through it. The stack of towels is manually carried to the storage table next to the machine body, and the towel pieces are manually picked up and inserted into the punched holes one by one. Then, a stamping machine is used to compress and mold the inserted towels. The transportation, picking up, and insertion of the towels rely on manual labor, which is labor-intensive, inefficient, and involves simple and repetitive work. This poses a safety hazard and is unhygienic. Therefore, it is necessary to develop a compressed towel automatic loader that automatically transmits and loads materials, absorbs and transfers materials layer by layer, and aligns and unloads materials in a forward and backward cycle. This can achieve automatic loading and avoid safety accidents caused by manual fatigue. Summary of the Invention

[0004] The object of the present invention is to provide an automatic feeding machine for compressed towels and a feeding method thereof, so as to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic loading machine for compressed towels, comprising a base, a conveying and sorting device, a lifting and sucking device, a spreading conveying device, a unloading device, and a controller, wherein the conveying and sorting device is horizontally mounted on the right end of the base for conveying a stack of towels, the lifting and sucking device is longitudinally mounted in the middle of the base, and the right side is connected with the left end of the conveying and sorting device, and the left side is connected with the spreading conveying device, for lifting the stack of towels input by the conveying and sorting device upward and adsorbing and transferring the towels one by one to the right end of the spreading conveying device, the spreading conveying device is horizontally mounted on the left end of the base, and the two ends are respectively connected with the spreading conveying device and the unloading device, for conveying the towel pieces input by the lifting and sucking device to the unloading device in sequence, and the unloading device is vertically installed at the discharge end of the spreading conveying device for inserting the towel pieces into the stamping die, and the controller is arranged on one side of the spreading conveying device, and is communicated and connected with the conveying and sorting device, the lifting and sucking device, the spreading conveying device, and the unloading device, respectively, for controlling the operation of the whole machine.

[0006] The towel material produced in the previous process is in a stacked state, while the compressed towel machine requires sheet-by-sheet cutting. At the same time, the stamping die has several punching holes that need to be inserted in an orderly manner. Therefore, the technical problem that the present invention needs to solve is how to convert the towel material from being transported in a stacked state to being transported piece by piece, and to align and insert the towel material into the punching holes in an orderly manner. To this end, the present invention is provided with a lifting and suction device, a spreading and conveying device, a blanking device, and a controller. The lifting and suction device converts the towel material from a stacked state into a single sheet state, and the spreading and conveying device transports the towel material piece by piece. The blanking device aligns the towel pieces and inserts them into the punching holes in two steps. The entire process is controlled by sensors and PLC programming.

[0007] The base includes a pedestal, a cabinet, and an air source station. The right end of the base is used to install a conveying and sorting device, the middle part is used to install a lifting and suction device, and the left end is fixed with a cabinet. A controller is provided on one side of the top surface of the cabinet, and an air source station is provided inside, and it is used to horizontally install a paving and conveying device.

[0008] The conveying and sorting device includes a frame, a first conveyor, a gantry, a first cylinder, a second cylinder, a rear push plate, a sorting bottom plate, a third cylinder, a side clamp, a fourth cylinder, a first front baffle, and a first sensor. The frame is fixedly installed on the right end of the base, and the first conveyor is horizontally arranged on the top of the frame for horizontally conveying the towel stack. The two upright columns of the gantry are fixedly installed on both sides of the first conveyor. The first cylinder is horizontally fixedly installed on the top surface of the gantry beam, and the output end is horizontally facing the feeding direction. The second cylinder is vertically set on the left side of the gantry, and the right side is fixedly connected to the output end of the first cylinder, and the output end is vertically downward. The top of the rear push plate is connected to the second cylinder The output end is fixedly connected. Initially, it is in a deflated state and above the towel pile. The sorting base is horizontally fixedly installed at the discharge end of the first conveyor. The plate surface is horizontally connected to the conveyor belt of the first conveyor. A pair of the third cylinders are respectively arranged on both sides of the discharge end of the first conveyor, and the output ends are horizontally facing the towel pile. A pair of the side clamps are fixedly connected to the corresponding third cylinder output ends respectively. The fourth cylinder is vertically fixedly arranged at the bottom left end of the frame, and the output end is upward. The first front baffle movably passes through the sorting base, and the lower end is fixedly connected to the output end of the fourth cylinder. The first sensor is horizontally fixedly arranged at the left end of one side of the first conveyor, and the sensing end faces the side of the towel pile.

[0009] The jacking and suction device includes a mounting base, an outer bracket, a jacking mechanism, a lifting mechanism, a sliding mechanism, and a suction mechanism. The mounting base is fixedly mounted on the middle part of the base, the outer bracket is fixedly mounted on the mounting base, the jacking mechanism is fixedly mounted on the mounting base, the lifting mechanism is vertically arranged on the inner side of the outer bracket, the sliding mechanism is horizontally arranged just above the jacking mechanism and is slidably connected to the lifting mechanism, and one end of the suction mechanism is fixedly mounted on the crossbeam of the outer bracket, and the other end is opposite to the sliding mechanism;

[0010] The jacking mechanism comprises a motor bracket, a first motor, a coupling, a screw, an optical axis, a seventh cylinder, a screw nut, a linear bearing, a second front baffle, an inner bracket, a third sensor, an induction sheet, a first support plate, and a first side plate. The motor bracket movably penetrates the mounting base plate, the first motor is fixedly connected to the bottom of the motor bracket, and the output end movably penetrates the bottom end of the motor bracket and is fixedly connected to the lower end of the coupling. The coupling is arranged in the motor bracket, and the upper and lower ends are respectively fixedly connected to the lower end of the screw and the output end of the first motor. The screw is respectively connected to the top end of the motor bracket in a rolling manner and is screwed with the screw nut. The top end is connected to the bottom surface of the first support plate in a rolling manner. A pair of optical axes are respectively arranged on both sides of the screw, and after movably penetrating the corresponding linear bearings, the upper and lower ends are respectively fixedly connected to the first support plate and the top end of the motor bracket. The seventh cylinder is fixedly installed in front of the top crossbeam of the inner bracket, and the output The output end is vertically upward, the screw nut is fixedly installed in the top crossbeam of the inner bracket, a pair of linear bearings are respectively fixedly installed at the two ends of the top crossbeam of the inner bracket, the second front baffle is vertically installed on the output end of the seventh cylinder, for supporting the towel stack to prevent the towel stack from overturning when the towel stack is pushed to the first supporting plate by the rear push plate. The inner bracket is vertically fixedly installed on the mounting base plate, the third sensor is laterally fixedly installed on the front side of one end of the inner bracket, and the sensor sheet is vertically fixedly installed on the front side of one end of the first supporting plate, opposite to the third sensor, the first supporting plate is respectively connected to the top end of the screw and fixedly connected to the top end of the optical axis, its width is smaller than the length of the towel stack, initially, its top surface and the top surface of the sorting base plate are in the same horizontal plane, a pair of the first side plates are respectively fixedly arranged on the left and right ends of the first supporting plate, and are respectively in the same plane with the two side surfaces of the adjacent towel stack;

[0011] The lifting mechanism includes a first slide rail, a first slider, a connecting plate, a stopper, and a first screw slide module. A pair of the first slide rails are vertically and parallelly installed on an inner side of an outer bracket. A pair of the first sliders are slidably connected to the corresponding first slide rails. The connecting plate is laterally and horizontally fixedly installed on the pair of first sliders. The pair of stoppers are respectively abutted against the lower ends of the corresponding first slide rails and fixedly installed on the outer bracket. The first screw slide module is vertically and fixedly installed on the other inner side of the outer bracket and opposite to the pair of first slide rails.

[0012] The sliding mechanism comprises a first slide, a second slide rail, a second slider, a second support plate, a first mini cylinder, and a second side plate, a pair of the first slides are respectively horizontally mounted on the connecting plate and the slide plate of the first screw slide module, a pair of the second slide rails are respectively horizontally mounted on the corresponding first slide, two pairs of the second slides are respectively slidably connected to the corresponding second slide rails, a pair of the second support plates are horizontally fixedly arranged on the second slide plates, and the spacing between them is adjusted by sliding the second slider, and the minimum spacing is equal to the width of the first support plate. Initially, the horizontal position of the pair of second support plates is at the front and rear ends of the second slide rails with the maximum spacing, and the vertical position is at the lowest end, flush with the highest position after the first support plate is jacked up, a pair of the first mini cylinders are respectively horizontally fixedly mounted on the two ends of the first slide on one side, and the output ends are respectively fixedly connected to the adjacent second support plates, and the two pairs of the second side plates are respectively spaced apart and mounted on the corresponding second support plates with a spacing equal to the horizontal width of the towel stack, and in the same vertical plane as the first side plates on the corresponding sides;

[0013] The suction mechanism includes a fifth cylinder, a sixth cylinder, a pressure plate, and a negative pressure absorber. The fifth cylinder is fixedly arranged on the crossbeam of the outer bracket, with the output end facing horizontally backward and at the front end in the initial state. The sixth cylinder is fixedly connected to the fifth cylinder, with the output end facing vertically downward. Initially, its output end is at the top end. The pressure plate is fixedly connected to the output end of the sixth cylinder. When the sixth cylinder is in the initial state, the bottom surface of the negative pressure absorber and the lower edge of the wheel are in the same plane. Several negative pressure absorbers are fixedly installed on the bottom surface of the pressure plate, with the suction end facing the towels, and the number matches the number of towels in each layer of the towel stack.

[0014] The paving and conveying device includes a second conveyor, a transfer mechanism, a spring-loaded mechanism, and an auxiliary pressure conveying mechanism. The second conveyor is horizontally installed on the transfer mechanism along the loading direction. Initially, it is close to the suction mechanism. The bottom of the transfer mechanism is fixedly connected to the top surface of the cabinet. The spring-loaded mechanism is arranged at the feed end of the second conveyor and is horizontally connected to the auxiliary pressure conveying mechanism. The auxiliary pressure conveying mechanism is arranged at the discharge end of the second conveyor.

[0015] The transfer mechanism includes a connecting base plate, a second screw slide module, and a connecting seat. The connecting base plate is fixedly mounted on the top surface of the cabinet. The second screw slide module is horizontally arranged between the connecting base plate and the connecting seat along the towel conveying direction. The bottom surface is fixedly connected to the top surface of the connecting base plate, and the slide is fixedly connected to the bottom surface of the connecting seat upward. The connecting seat is arranged directly below the second conveyor and is fixedly connected to both sides of the second conveyor. Initially, it is above the rear end of the second screw slide module.

[0016] The elastic resistance mechanism includes an axle seat, a transverse axis, a wheel seat, a resistance wheel, and an elastic bar. A pair of the axle seats are arranged opposite to each other on both sides of the feed end of the second conveyor. The two ends of the transverse axis are respectively connected to the corresponding axle seats in a rolling manner. The upper ends of several wheel seats are fixedly sleeved with the transverse axis, and the lower ends are close to the feed end of the second conveyor. Several resistance wheels are rollingly arranged on one side of the corresponding wheel seats, and the number matches the number of towels in each layer of the towel stack. The rear ends of several elastic bars are fixedly sleeved with the transverse axis through the lower edge of the transverse axis, and the front ends extend to the bottom of the rear end of the auxiliary pressure transmission mechanism, respectively, to transmit the elastic force of the elastic bar to the wheel seat, and through the wheel seat, the resistance wheel is pressed tightly against the conveyor belt of the second conveyor.

[0017] The auxiliary pressure transmission mechanism includes a double-axle seat, a transmission shaft, a transmission pulley, a first synchronous belt, a passive pulley, an active pulley, a second synchronous belt, a motor mounting plate, a synchronous motor, a driven shaft, and a driven pulley. A pair of the double-axle seats are fixedly installed on both sides of the discharge end of the second conveyor for connecting the transmission shaft, the motor mounting plate, and the driven shaft. The transmission shaft is rollingly installed between the front ends of a pair of double-axle seats, one end of which protrudes from the double-axle seat on the corresponding side. Several transmission pulleys are fixedly installed on the transmission shaft at intervals, and the two ends of several first synchronous belts are respectively sleeved with the transmission pulley and the driven pulley. The rear ends are directly above the front ends of the corresponding elastic bars and are against the front ends of the elastic bars. The passive pulley is fixedly connected to the protruding end of the transmission shaft, the driving pulley is fixedly connected to the output shaft of the synchronous motor, and the two ends of the second synchronous belt are respectively sleeved with the passive pulley and the driving pulley. The motor mounting plate is vertically fixedly mounted on the outer side of the double-axle seat corresponding to the passive pulley, the synchronous motor is horizontally fixedly mounted on the outer side of the motor mounting plate, and the output end passes through the motor mounting plate. The driven shaft is fixedly mounted between the rear ends of a pair of double-axle seats, and several of the driven pulleys are fixedly mounted on the driven shaft at intervals.

[0018] The stop wheel, wheel seat, spring bar, driven pulley, second synchronous belt and transmission pulley are arranged on the second conveyor along the towel transmission direction, and their number and position match the number and position of each layer of towels in the towel stack, forming a towel paving transmission line.

[0019] The unloading device includes an unloading seat plate, a cylinder seat, an eighth cylinder, a second mini cylinder, and a third sensor. The unloading seat plate is arranged at the front end of the second conveyor and is fixedly connected to both sides of the second conveyor. It includes an unloading bottom plate, a front seat, and a rear side plate. The unloading bottom plate is horizontally connected to the front end of the second conveyor. A plurality of unloading ports are provided at the rear end, and a through hole is provided at the front end. The lower end of the front seat is fixedly connected to the front edge of the unloading bottom plate, and the rear side plate is fixedly connected to the rear edge of the top surface of the front seat. A pair of the cylinder seats are fixedly mounted on both sides of the unloading bottom plate, and a pair of the eighth cylinders are horizontally slidably mounted on the back of the rear side plate. The output ends are respectively It is fixedly connected to the cylinder seat on the corresponding side, and a vertical downward drag rod is provided on the bottom surface. Initially, the eighth cylinder is in a deflated state, and the lower end of the corresponding drag rod just contacts the passing towel. Several of the second mini cylinders are vertically and side by side fixedly installed on the top surface of the front seat, and facing the center of the stamping hole. Initially, its output end is at the highest point. When the towel piece passes under it, the output end of the middle second mini cylinder faces the center of the middle towel piece, and the output ends of the other second mini cylinders face the junction of adjacent towel pieces. The third sensors are vertically and side by side fixedly installed at intervals on the front end of the top surface of the front seat, and the sensing ends are all facing the corresponding through holes.

[0020] In addition, the present invention also provides a feeding method for a compressed towel automatic feeding machine, comprising the following steps:

[0021] S1. Horizontal intermittent stacking: Place the towel stack on the conveyor belt of the first conveyor. When it is transported between a pair of side clamps, the first sensor sends a photoelectric signal to the controller, and the controller issues an instruction for the first conveyor to pause. Then the fourth cylinder and the second cylinder both inhale air to drive the first front baffle upward and the rear push plate downward. After they are in place, the first cylinder drives the rear push plate forward. With the cooperation of the first front baffle, the front and back sides of the towel stack are shaped. Then, a pair of third cylinders simultaneously drive the corresponding side clamps to push out to both sides of the towels, completing the shaping of both sides of the towel stack. At this time, the first support plate and the sorting bottom plate are in the same plane, the second sensor is facing the sensor plate, the second sensor sends a photoelectric signal to the controller, the controller sends a command, the fourth cylinder deflates to drive the first front baffle downward to reset, then the first conveyor resumes work, the first cylinder continues to intake air to drive the rear push plate to continue to push forward, pushing the towel stack onto the first support plate, and between the pair of first side plates, finally, the pair of third cylinders deflate at the same time to drive the corresponding side clamps to retract and reset, the second cylinder and the first cylinder deflate at the same time to drive the rear push plate to reset upward and right respectively;

[0022] S2. Vertically lift the stack upward: After S1 is completed, the controller issues a command, inducing air in the seventh cylinder to drive the second front baffle upward, supporting the towel stack in front and preventing it from tipping over during the lifting process. Simultaneously, the first motor drives the lead screw through the coupling to rotate forward within the lead screw nut, thereby driving the optical axis along the linear bearing to lift the first support plate to between the pair of second support plates. At this point, the top surface of the first support plate is flush with the second support plate, and the bottom surface of the towel stack is exactly flush with the top surface of the pair of second support plates, completing the lifting of the towel stack.

[0023] S3. Horizontal Sliding Stacking: After S2 is completed, the first pair of mini-cylinders simultaneously draw air, driving the second pair of slide rails, which in turn drive the second pair of pallets to slide toward each other until the second pair of pallets connect with the first pallet. The towel stack is now positioned above the second pallet and between the two pairs of second side panels, completing the second pallet's acceptance of the towel stack. The seventh cylinder then deflates, driving the second front baffle downward and back to its original position. Simultaneously, the first motor, via the coupling, drives the lead screw to rotate in the opposite direction within the lead screw nut, driving the first pallet downward and back to its original position to receive the new towel stack.

[0024] S4. Vertical stacking adsorption: When S3 is completed, the first screw slide module rotates forward to drive the pair of second pallets to move up. When the towel stack approaches the bottom of the negative pressure absorber, the fifth cylinder sucks air to push the sixth cylinder backward. Then the sixth cylinder sucks air through the pressure plate to drive the negative pressure absorber downward to the surface of the towel sheet, and uses the negative pressure to absorb the towel sheet on the negative pressure absorber. Then the sixth cylinder deflates the air to drive the negative pressure absorber to rise to the highest point. The fifth cylinder deflates the air and transmits the towel sheet on the negative pressure absorber to the intersection of the wheel and the conveyor belt of the second conveyor through the sixth cylinder, thereby evenly and orderly sucking the towel stack piece by piece to the input end of the paving conveyor device. After the towel sheets on the towel stack are completely absorbed, the first screw slide module reverses to drive the pair of second pallets to return to the lowest point. At the same time, the pair of first mini cylinders deflate at the same time to drive the second pallet to return to its original position.

[0025] S5. Horizontal, piece-by-piece feeding: After S4 is completed, the towels flow in an orderly fashion beneath the spring bars as the conveyor belt moves. Guided by the spring bars, they are conveyed to the junction of the rear end of the first synchronous belt and the conveyor belt of the second conveyor. The synchronous motor then drives the drive shaft counterclockwise via the active pulley, the second synchronous belt, and the driven pulley. This, in turn, drives the driven pulley counterclockwise, synchronously with the first synchronous belt. The towels are then conveyed between the second conveyor and the first synchronous belt to the discharge end of the second conveyor, where they enter the bottom of the unloading device.

[0026] S6. Planting the first punching hole: After S5 is completed, when the towel piece is conveyed to the bottom of the third sensor, the middle towel piece first covers the middle through hole, and the third sensor sends a photoelectric signal to the controller, and then the controller sends a command, the middle second mini cylinder inhales air, and the output end extends downward to plant the middle towel piece from the blanking port into the punching hole directly below, so that the middle through hole is unobstructed, so that the sensing end of the middle third sensor is facing the middle through hole, the third sensor sends a photoelectric signal to the controller again, and then the controller sends a command again, the middle second mini cylinder deflates and resets its output end to the highest point, and then the eighth cylinder inhales air, driving the drag rod to move the towel pieces on both sides to the middle to the bottom of the second mini cylinders on both sides, and the second mini cylinders on both sides inhale air, and the output end extends downward to plant the towel pieces on both sides from the corresponding blanking port into the punching hole directly below, completing the planting of the first punching hole;

[0027] S7. Planting material in the second punching hole: After S6 is completed, all the sensing ends of the third sensors are directly facing the through holes corresponding to the blanking bottom plate. The third sensors continue to send photoelectric signals to the controller, and the controller continues to send instructions. A pair of eighth cylinders and the second mini cylinders on both sides are deflated and reset at the same time. Then, the second screw slide module rotates forward, and drives the second conveyor through the connecting seat to move the second mini cylinder forward to directly above the second punching hole. Repeat the S6 action to complete the planting of the second punching hole. Then, the second screw slide module reverses, and drives the second conveyor through the connecting seat to move the second mini cylinder backward to directly above the first punching hole, and this cycle continues.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The present invention realizes automatic arrangement and loading of towel piles on all four sides by arranging a rear push plate, an arrangement bottom plate, a pair of side clamping plates and a first front baffle at the discharge end of the first conveyor under the action of the cylinder.

[0030] 2. The present invention realizes vertical lifting of the towel stack and suction of the towel stack layer by layer onto the second conveyor by arranging a lifting mechanism, a lifting mechanism, a sliding mechanism and a suction mechanism that cooperate with each other in the lifting and suction device.

[0031] 3. The present invention realizes the horizontal transmission of towel pieces one by one by arranging the end-to-end contact wheels, wheel seats, spring bars, driven pulleys, second synchronous belts and transmission pulleys on the second conveyor, which has good transmission stability and is convenient for punching and blanking one by one.

[0032] 4. The present invention sets a second vertically downward mini cylinder and a pair of eighth cylinders in the unloading device that match the number of towels in each layer of towel stack, and under the control of the third sensor, realizes that each layer of towel pieces is automatically implanted vertically downward into the punching holes of the stamping die first in the middle and then on both sides.

[0033] 5. The present invention arranges a second screw slide module under the second conveyor to drive the second conveyor to move left and right, so that the second mini cylinder in the unloading device can cyclically and alternately align with the second punching hole and the first punching hole of the stamping die, thereby realizing alternating pushing of the first and second punching holes.

[0034] 6. The present invention has a high degree of automation. The towel material is converted from a stacked state to a single piece state through a jacking and suction device, and is transported piece by piece through a spreading and conveying device. The towel pieces are aligned and inserted into the punching holes in two steps through a feeding device. The entire process is controlled by sensors and PLC programming, replacing manual loading, greatly improving work efficiency, reducing operational safety risks, and ensuring the hygiene of the compressed towels. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0036] Figure 2 Schematic diagram of the three-dimensional structure of the existing compressed towel machine and its stamping die;

[0037] Figure 3 It is a schematic diagram of the three-dimensional structure of the base of the present invention;

[0038] Figure 4 It is a schematic diagram of the three-dimensional structure of the conveying and sorting device of the present invention;

[0039] Figure 5 It is a schematic diagram of the three-dimensional structure of the lifting and suction device of the present invention;

[0040] Figure 6 It is a schematic diagram of the three-dimensional structure of the jacking mechanism of the present invention;

[0041] Figure 7 It is a schematic diagram of the three-dimensional structure of the slide mechanism of the present invention;

[0042] Figure 8 It is a schematic diagram of the three-dimensional structure of the paving and transmission device of the present invention;

[0043] Figure 9 This is a bottom view of the structure of the paving and transmission device of the present invention;

[0044] Figure 10 This is a schematic diagram of towel spreading and transmission according to the present invention;

[0045] Figure 11 It is a schematic diagram of the three-dimensional structure of the auxiliary pressure transmission mechanism of the present invention;

[0046] Figure 12 It is a schematic diagram of the three-dimensional structure of the blanking mechanism of the present invention;

[0047] Figure 13This is a three-dimensional structural diagram of the positional relationship between the blanking base plate, the second mini cylinder, and the third sensor of the present invention.

[0048] In the figure: 1 base, 11 base, 12 cabinet, 2 conveying and sorting device, 201 frame, 202 first conveyor, 203 gantry, 204 first cylinder, 205 second cylinder, 206 rear push plate, 207 sorting bottom plate, 208 third cylinder, 209 side clamping plate, 210 fourth cylinder, 211 first front baffle, 212 first sensor, 3 lifting and sucking device, 31 mounting bottom plate, 32 outer bracket, 33 lifting mechanism, 3301 motor bracket, 3302 first motor, 3303 coupling, 3 304 screw rod, 3305 optical axis, 3306 seventh cylinder, 3307 screw nut, 3308 linear bearing, 3309 second front baffle, 3310 inner bracket, 3311 second sensor, 3312 sensor plate, 3313 first support plate, 3314 first side plate, 34 lifting mechanism, 341 first slide rail, 342 first slider, 343 connecting plate, 344 block, 345 first screw slide module, 35 slide support mechanism, 351 first slide seat, 352 second slide rail, 353 second slider, 35 4 second support plate, 355 first mini cylinder, 356 second side plate, 36 suction mechanism, 361 fifth cylinder, 362 sixth cylinder, 363 pressure plate, 364 negative pressure absorber, 4 paving conveyor, 41 second conveyor, 42 transfer mechanism, 421 connecting base plate, 422 second screw slide module, 423 connecting seat, 43 elastic mechanism, 431 shaft seat, 432 horizontal shaft, 433 wheel seat, 434 wheel, 435 elastic bar, 44 auxiliary pressure transmission mechanism, 4401 double shaft seat, 4402 transmission shaft , 4403 drive pulley, 4404 first synchronous belt, 4405 driven pulley, 4406 driving pulley, 4407 second synchronous belt, 4408 motor mounting plate, 4409 synchronous motor, 4410 driven shaft, 4411 driven pulley, 5 unloading device, 51 unloading seat plate, 511 unloading bottom plate, 511a unloading port, 511b through hole, 512 mounting plate, 513 rear side plate, 52 cylinder seat, 53 eighth cylinder, 53a drag rod, 54 second mini cylinder, 55 third sensor, 6 controller. DETAILED DESCRIPTION

[0049] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] See Figure 1 A compressed towel automatic feeding machine includes a base 1, a conveying and sorting device 2, a lifting and sucking device 3, a paving conveying device 4, a feeding device 5, and a controller 6. The conveying and sorting device 2 is horizontally mounted on the right end of the base 1 for conveying a stack of towels. The lifting and sucking device 3 is longitudinally mounted in the middle of the base 1, and is connected to the left end of the conveying and sorting device 2 on the right side and to the paving conveying device 4 on the left side. It is used to lift the stack of towels input by the conveying and sorting device 2 upward and transfer the towels piece by piece to the right end of the paving conveying device 4 by suction. The paving conveying device 4 is horizontally mounted on the left end of the base 1, and its two ends are connected with the paving conveying device 4 and the unloading device 5 respectively, and is used to sequentially convey the towel pieces input by the jacking and suction device 3 to the unloading device 5. The unloading device 5 is vertically installed at the discharge end of the paving conveying device 4, and is used to insert the towel pieces into the stamping die. The controller 6 is arranged on one side of the paving conveying device 4, and is respectively communicated with the conveying and sorting device 2, the jacking and suction device 3, the paving conveying device 4, and the unloading device 5, and is used to control the operation of the whole machine.

[0052] See Figure 3 The base 1 includes a base 11, a cabinet 12, and an air source station. The right end of the base 11 is used to install the conveying and sorting device 2, the middle part is used to install the jacking and suction device 3, and the left end is fixed with a cabinet 12. A controller 6 is provided on one side of the top surface of the cabinet 12, and an air source station is provided inside, and it is used to horizontally install the paving and conveying device 4.

[0053] See Figure 4 、 Figure 6The conveying and sorting device 2 includes a frame 201, a first conveyor 202, a gantry 203, a first cylinder 204, a second cylinder 205, a rear push plate 206, a sorting bottom plate 207, a third cylinder 208, a side clamping plate 209, a fourth cylinder 210, a first front baffle 211, and a first sensor 212. The frame 201 is fixedly mounted on the right end of the base 1, and the first conveyor 202 is horizontally arranged on the top of the frame 201 for horizontally conveying the towel stack. The two columns of the gantry 203 are fixedly mounted on both sides of the first conveyor 202. The first cylinder 204 is horizontally fixedly mounted on the top surface of the crossbeam of the gantry 203, and the output end is horizontally facing the feeding direction. The second cylinder 205 is vertically set on the left side of the gantry 203, and the right side is fixedly connected to the output end of the first cylinder 204, and the output end is vertically downward. The top of the rear push plate 206 is fixedly connected to the output end of the second cylinder 205. Initially, it is in the deflated state and above the towel pile. The sorting base plate 207 is horizontally fixedly installed at the discharge end of the first conveyor 202, and the plate surface is horizontally connected to the conveyor belt of the first conveyor 202. A pair of the third cylinders 208 are respectively arranged on both sides of the discharge end of the first conveyor 202, and the output ends are horizontally facing the towel pile. A pair of the side clamps 209 are fixedly connected to the corresponding output ends of the third cylinder 208. The fourth cylinder 210 is vertically fixedly arranged at the bottom left end of the frame 201, with the output end facing upward. The first front baffle 211 movably passes through the sorting base plate 207, and the lower end is fixedly connected to the output end of the fourth cylinder 210. The first sensor 212 is horizontally fixedly arranged at the left end of one side of the first conveyor 202, and the sensing end faces the side of the towel pile.

[0054] By setting up the conveying and sorting device 2, when the towel pile is transported between a pair of side clamps 209 on the conveyor belt of the first conveyor 202, the first sensor 212 sends a photoelectric signal to the controller 6, and then the controller 6 sends an instruction, the first conveyor 202 pauses, and then the fourth cylinder 210 and the second cylinder 205 both inhale air to drive the first front baffle 211 upward and the rear push plate 206 downward to their respective positions, and then the first cylinder 204 drives the rear push plate 206 forward to complete the shaping of the front and rear sides of the towel pile with the cooperation of the first front baffle 211, and then a pair of third cylinders 208 simultaneously drive the corresponding side clamps 209 to be pushed to both sides of the towel pile to realize the shaping and positioning of the two sides of the towel pile. When the sensor 3311 is facing the sensor plate 3312, the second sensor 3311 sends a photoelectric signal to the controller 6, and then the controller 6 sends an instruction. The fourth cylinder 210 deflates to drive the first front baffle 211 to reset downward, and then the first conveyor 202 resumes work. The first cylinder 204 continues to intake air to drive the rear push plate 206 to continue to push forward. With the cooperation of the first conveyor 202, the towel stack is pushed to the first support plate 3313 and between a pair of first side plates 3314. Finally, a pair of third cylinders 208 deflate at the same time to drive the corresponding side clamps 209 to retract and reset. The second cylinder 205 and the first cylinder 204 deflate at the same time to drive the rear push plate 206 to reset upward and to the right respectively, and the cycle continues.

[0055] See Figure 3 、 Figure 5 The jacking and suction device 3 includes a mounting base 31, an outer bracket 32, a jacking mechanism 33, a lifting mechanism 34, a sliding mechanism 35, and a suction mechanism 36. The mounting base 31 is fixedly mounted on the middle part of the base 11, the outer bracket 32 is fixedly mounted on the mounting base 31, the jacking mechanism 33 is fixedly mounted on the mounting base 31, the lifting mechanism 34 is vertically arranged on the inner side of the outer bracket 32, the sliding mechanism 35 is horizontally arranged directly above the jacking mechanism 33, and is slidably connected to the lifting mechanism 34. One end of the suction mechanism 36 is fixedly mounted on the crossbeam of the outer bracket 32, and the other end is opposite to the sliding mechanism 35.

[0056] See Figure 6 、 Figure 7The lifting mechanism 33 includes a motor bracket 3301, a first motor 3302, a coupling 3303, a screw 3304, an optical axis 3305, a seventh cylinder 3306, a screw nut 3307, a linear bearing 3308, a second front baffle 3309, an inner bracket 3310, a second sensor 3311, a sensor sheet 3312, a first support plate 3313, and a first side plate 3314. The motor bracket 3301 is movable through the mounting base 31, the first motor 3302 is fixedly connected to the bottom of the motor bracket 3301, and the output end is movable through the motor bracket 330 1 bottom end is fixedly connected to the lower end of the coupling 3303, the coupling 3303 is set in the motor bracket 3301, and the upper and lower ends are respectively fixedly connected to the lower end of the screw rod 3304 and the output end of the first motor 3302, the screw rod 3304 is respectively connected to the top of the motor bracket 3301 in a rolling manner, and the screw nut 3307 is screwed, and the top is connected to the bottom surface of the first support plate 3313 in a rolling manner. A pair of optical axes 3305 are respectively set on both sides of the screw rod 3304, and after movably passing through the corresponding linear bearings 3308, the upper and lower ends are respectively connected to the first support plate 3313 and the top of the motor bracket 3301 The ends are fixedly connected, the seventh cylinder 3306 is fixedly mounted in front of the top crossbeam of the inner bracket 3310, and the output end is vertically upward. The screw nut 3307 is fixedly mounted in the top crossbeam of the inner bracket 3310, and a pair of linear bearings 3308 are respectively fixedly mounted at both ends of the top crossbeam of the inner bracket 3310. The second front baffle 3309 is vertically mounted on the output end of the seventh cylinder 3306 to support the towel pile to prevent it from overturning during the process of being pushed to the first support plate 3313 by the rear push plate 206. The inner bracket 3310 is vertically fixedly mounted on the mounting base 3 1, the second sensor 3311 is fixedly installed horizontally on the front side of one end of the inner bracket 3310, and the sensor sheet 3312 is fixedly installed vertically downward on the front side of one end of the first supporting plate 3313, opposite to the second sensor 3311. The first supporting plate 3313 is respectively connected to the top of the screw rod 3304 in a rolling manner and fixedly connected to the top of the optical axis 3305. Initially, its top surface is in the same horizontal plane as the top surface of the finishing base 207. A pair of first side panels 3314 are respectively fixedly installed vertically at the left and right ends of the first supporting plate 3313, and are respectively in the same plane as the two side surfaces of the adjacent towel pile.

[0057] By setting up the jacking mechanism 33, when the second sensor 3311 is facing the sensor plate 3312, the second sensor 3311 sends a photoelectric signal to the controller 6, and then the controller 6 sends an instruction, the seventh cylinder 3306 sucks air to drive the second front baffle 3309 upward, supporting the towel pile in front to prevent it from overturning during the jacking process, and at the same time, the first motor 3302 drives the screw rod 3304 to rotate forward in the screw rod nut 3307 through the coupling 3303, thereby driving the optical axis 3305 along the linear bearing 3308 to jack the first support plate 3313 to between a pair of second support plates 354. At this time, the bottom surface of the towel pile is just flush with the top surface of the pair of second support plates 354, completing the jacking of the towel pile.

[0058] See Figure 5 The lifting mechanism 34 includes a first slide rail 341, a first slider 342, a connecting plate 343, a stop block 344, and a first screw slide module 345. A pair of the first slide rails 341 are vertically and parallelly installed on an inner side of the outer bracket 32. A pair of the first sliders 342 are slidably connected to the corresponding first slide rails 341 respectively. The connecting plate 343 is laterally and horizontally fixed on the pair of first sliders 342. A pair of the stop blocks 344 are respectively abutted against the lower ends of the corresponding first slide rails 341 and fixedly installed on the outer bracket 32. The first screw slide module 345 is vertically and fixedly installed on the other inner side of the outer bracket 32 and opposite to the pair of first slide rails 341.

[0059] By setting up a lifting mechanism 34, when the towel pile is transferred from the first support plate 3313 to a pair of second support plates 354, as the towels on the towel pile are sucked one by one to the input end of the paving conveying device 4 by the suction mechanism 36, the first screw slide module 345 rotates forward to drive the pair of second support plates 354 to move upward, lifting the towel pile upward evenly and orderly until the towels on the towel pile are completely sucked up, and the pair of second support plates 354 are reset to the lowest point as the first screw slide module 345 reverses. At the same time, the pair of first mini cylinders 355 are deflated at the same time, driving the second support plates 354 to reset.

[0060] See Figure 5 、 Figure 7The sliding mechanism 35 includes a first slide 351, a second slide rail 352, a second slider 353, a second support plate 354, a first mini cylinder 355, and a second side plate 356. A pair of the first slides 351 are respectively mounted horizontally on the connecting plate 343 and the slide of the first screw slide module 345. A pair of the second slide rails 352 are respectively mounted horizontally on the corresponding first slides 351. Two pairs of the second sliders 353 are respectively slidably connected to the corresponding second slide rails 352. A pair of the second support plates (354) are horizontally fixed on the second slider (353). The spacing between the second slider (353) is adjusted by sliding, and the minimum The spacing is equal to the width of the first support plate (3313). Initially, the horizontal position of a pair of second support plates (354) is at the front and rear ends of the second slide rail (352) with the largest spacing therebetween, and the vertical position is at the lowest end, flush with the highest position of the first support plate (3313) after being lifted. A pair of the first mini cylinders 355 are respectively fixedly installed horizontally at the two ends of the first slide seat 351 on one side, and the output ends are respectively fixedly connected to the adjacent second support plates 354. Two pairs of the second side plates 356 are respectively installed on the corresponding second support plates 354 at intervals, with a spacing equal to the horizontal width of the towel pile, and are in the same vertical plane as the first side plates 3314 on the corresponding side.

[0061] By setting the sliding mechanism 35, when the towel pile is lifted up along with the first supporting plate 3313 and enters between the pair of second supporting plates 354, and the top surfaces of the first supporting plate 3313 and the second supporting plate 354 are flush, the pair of first mini cylinders 355 inhale air at the same time, and drive the second sliders 353 to slide toward each other along the pair of second slide rails 352 through the corresponding second supporting plates 354, until the pair of second supporting plates 354 are connected to the first supporting plate 3313, holding the front and rear ends of the towel pile. At this time, the pair of towel piles are just in the second supporting plate 3313. The plate 354 is above the plate 354 and is located between the two pairs of second side plates 356, completing the reception of the towel stack by the second support plate 354. When the first support plate 3313 and the second front baffle 3309 are reset downward, the towel stack is prevented from falling. Then the seventh cylinder 3306 is deflated to drive the second front baffle 3309 to reset downward. At the same time, the first motor 3302 drives the screw rod 3304 to rotate in the screw rod nut 3307 through the coupling 3303, driving the first support plate 3313 to reset downward to receive the new towel stack.

[0062] See Figure 5 、 Figure 7 、 Figure 8The suction mechanism 36 includes a fifth cylinder 361, a sixth cylinder 362, a pressure plate 363, and a negative pressure absorber 364. The fifth cylinder 361 is fixedly arranged on the crossbeam of the outer bracket 32, with the output end horizontally facing backward and the initial state being at the front end. The sixth cylinder 362 is fixedly connected to the fifth cylinder 361, and the output end is vertically downward. Initially, its output end is at the top end. The pressure plate 363 is fixedly connected to the output end of the sixth cylinder 362. When the sixth cylinder 362 is in the initial state, the bottom surface of the negative pressure absorber 364 and the lower edge of the wheel 434 are in the same plane. Several of the negative pressure absorbers 364 are fixedly mounted on the bottom surface of the pressure plate 363, and the suction ends are facing the towels. The number matches the number of towels in each layer of the towel stack.

[0063] By setting up the suction mechanism 36, when the second support plate 354 completes taking over the towel stack, the first screw slide module 345 rotates forward to drive a pair of second support plates 354 to move upward. When the towel stack approaches the bottom of the negative pressure absorber 364, the fifth cylinder 361 inhales air to push the sixth cylinder 362 backward, and then the sixth cylinder 362 inhales air through the pressure plate 363 to drive the negative pressure absorber 364 downward to the surface of the towel, and uses negative pressure to absorb the towel on the negative pressure absorber 364. Then, the sixth cylinder 362 deflates air to drive the negative pressure absorber 364 to rise to the highest point, and the fifth cylinder 361 deflates air through the sixth cylinder 362 to transfer the towels on the negative pressure absorber 364 to the intersection of the wheel 434 and the conveyor belt of the second conveyor 41, and repeats this process until the towel pieces on the towel stack are completely absorbed.

[0064] See Figure 8 、 Figure 9 The paving conveying device 4 includes a second conveyor 41, a transfer mechanism 42, a spring-loaded mechanism 43, and an auxiliary pressure conveying mechanism 44. The second conveyor 41 is horizontally installed on the transfer mechanism 42 along the loading direction. Initially, it is close to the suction mechanism 36. The bottom of the transfer mechanism 42 is fixedly connected to the top surface of the cabinet 12. The spring-loaded mechanism 43 is arranged at the feeding end of the second conveyor 41 and is horizontally connected to the auxiliary pressure conveying mechanism 44. The auxiliary pressure conveying mechanism 44 is arranged at the discharging end of the second conveyor 41.

[0065] The transfer mechanism 42 includes a connecting base plate 421, a second screw slide module 422, and a connecting seat 423. The connecting base plate 421 is fixedly mounted on the top surface of the cabinet 12. The second screw slide module 422 is horizontally arranged between the connecting base plate 421 and the connecting seat 423 along the towel conveying direction. The bottom surface is fixedly connected to the top surface of the connecting base plate 421, and the slide is fixedly connected to the bottom surface of the connecting seat 423 upward. The connecting seat 423 is arranged directly below the second conveyor 41 and is fixedly connected to both sides of the second conveyor 41. Initially, it is above the rear end of the second screw slide module 422.

[0066] By setting up the transfer mechanism 42, after the first punching hole is pushed, the second screw slide module 422 rotates forward, and drives the second conveyor 41 forward through the connecting seat 423, so that the output end of the second mini cylinder 54 faces the second punching hole, and at the same time, the fifth cylinder 361 inhales and pushes the sixth cylinder 362 backward; after the second punching hole is pushed, the second screw slide module 422 reverses and drives the front end of the second conveyor 41 backward through the connecting seat 423, so that the output end of the second mini cylinder 54 faces the first punching hole, and at the same time, the fifth cylinder 361 deflates and pulls the sixth cylinder 362 forward.

[0067] See Figure 8 The elastic resistance mechanism 43 includes an axle seat 431, a transverse axis 432, a wheel seat 433, a resistance wheel 434, and an elastic bar 435. A pair of the axle seats 431 are arranged opposite to each other on both sides of the feeding end of the second conveyor 41, and the two ends of the transverse axis 432 are respectively connected in a rolling manner with the corresponding axle seats 431. The upper ends of several wheel seats 433 are fixedly sleeved with the transverse axis 432, and the lower ends are close to the feeding end of the second conveyor 41. Several resistance wheels 434 are rollingly arranged on one side of the corresponding wheel seats 433, and the number matches the number of towels in each layer of the towel stack. The rear ends of several elastic bars 435 are fixedly sleeved with the transverse axis 432 upward through the lower edge of the transverse axis 432, and the front ends extend to just below the rear end of the auxiliary pressure conveying mechanism 44, respectively, to transmit the elastic force of the elastic bar 435 to the wheel seat 433, and through the wheel seat 433, the resistance wheel 434 is tightly pressed against the conveyor belt of the second conveyor 41.

[0068] By setting up the elastic resistance mechanism 43, when the towel piece enters the intersection of the resistance wheel 434 and the conveyor belt of the second conveyor 41, it enters under the elastic bar 435 in an orderly manner along the conveyor belt, and is transported to the auxiliary pressure conveying mechanism 44 under the guidance of the elastic bar 435.

[0069] See Figure 11The auxiliary pressure transmission mechanism 44 includes a double-coupled shaft seat 4401, a transmission shaft 4402, a transmission pulley 4403, a first synchronous belt 4404, a passive pulley 4405, a driving pulley 4406, a second synchronous belt 4407, a motor mounting plate 4408, a synchronous motor 4409, a driven shaft 4410, and a driven pulley 4411. A pair of double-coupled shaft seats 4401 are fixedly mounted on both sides of the discharge end of the second conveyor 41 for connecting the transmission shaft 4402, the motor mounting plate 4408, and the driven shaft 4410. The transmission shaft 4402 is rollingly mounted between the front ends of a pair of double-coupled shaft seats 4401, one end of which protrudes from the double-coupled shaft seat 4401 on the corresponding side. Several transmission pulleys 4403 are fixedly mounted on the transmission shaft 4402 at intervals, and several first synchronous belts 4404 are respectively connected at both ends to the transmission pulleys 4403. , and the driven pulley 4411 is sleeved, and the rear ends are just above the front ends of the corresponding elastic bars 435 and are against the front ends of the elastic bars 435. The driven pulley 4405 is fixedly connected to the protruding end of the transmission shaft 4402, and the driving pulley 4406 is fixedly connected to the output shaft of the synchronous motor 4409. The two ends of the second synchronous belt 4407 are respectively sleeved with the passive pulley 4405 and the driving pulley 4406. The motor mounting plate 4408 is vertically fixedly mounted on the outside of the double-axle seat 4401 corresponding to the passive pulley 4405, and the synchronous motor 4409 is horizontally fixedly mounted on the outside of the motor mounting plate 4408, and the output end passes through the motor mounting plate 4408. The driven shaft 4410 is fixedly mounted between the rear ends of a pair of double-axle seats 4401, and several driven pulleys 4411 are fixedly mounted on the driven shaft 4410 at intervals.

[0070] By setting up an auxiliary pressure transmission mechanism 44, when the towel piece enters the auxiliary pressure transmission mechanism 44 from the front end of the elastic bar 435 on the second conveyor 41, the synchronous motor 4409 drives the transmission shaft 4402 to rotate counterclockwise through the active pulley 4406, the second synchronous belt 4407, and the passive pulley 4405, and then drives the driven pulley 4411 to rotate counterclockwise synchronously through the first synchronous belt 4404. The friction force on its upper and lower surfaces is utilized to make the towel piece transported between the second conveyor 41 and the first synchronous belt 4404 to the discharge end of the second conveyor 41, avoiding the normal transmission affected by large vibrations or wind force, and smoothly entering the unloading device 5.

[0071] See Figure 8 、 Figure 10 The stop wheel 434, wheel seat 433, spring bar 435, driven pulley 4411, second synchronous belt 4407, and transmission pulley 4403 are arranged on the second conveyor 41 along the towel transmission direction, and their number and position match the number and position of each layer of towel sheets in the towel stack, forming a towel sheet paving and transmission line.

[0072] See Figure 12 、 Figure 13The unloading device 5 includes an unloading seat plate 51, a cylinder seat 52, an eighth cylinder 53, a second mini cylinder 54, and a third sensor 55. The unloading seat plate 51 is arranged at the front end of the second conveyor 41 and is fixedly connected to both sides of the second conveyor 41. It includes an unloading bottom plate 511, a front seat 512, and a rear side plate 513. The unloading bottom plate 511 is horizontally connected to the front end of the second conveyor 41. A plurality of unloading ports 511a are provided at the rear end, and a through hole 511b is provided at the front end. The lower end of the front seat 512 is fixedly connected to the front edge of the unloading bottom plate 511, and the rear side plate 513 is fixedly connected to the rear edge of the top surface of the front seat 512. A pair of cylinder seats 52 are respectively fixedly mounted on both sides of the unloading bottom plate 511, and a pair of eighth cylinders 53 slide horizontally laterally. It is installed on the back of the rear side plate 513, and the output ends are fixedly connected to the cylinder seats 52 on the corresponding sides. The bottom surfaces are provided with vertical downward drag rods 53a. Initially, the eighth cylinder 53 is in a deflated state, and the lower end of the corresponding drag rod 53a just contacts the passing towel. Several of the second mini cylinders 54 are vertically and side by side fixedly installed on the top surface of the front seat 512, and facing the center of the punching hole. Initially, its output end is at the highest point. When the towel piece passes under it, the output end of the middle second mini cylinder 54 faces the center of the middle towel piece, and the output ends of the other second mini cylinders 54 face the junction of adjacent towel pieces. The third sensors 55 are fixedly installed vertically and side by side at intervals on the front end of the top surface of the front seat 512, and the sensing ends are all facing the corresponding through holes 511b.

[0073] By setting up the unloading device 5, when the towel piece is conveyed by the second conveyor 41 to the bottom of the third sensor 55 with the assistance of the auxiliary pressure conveying mechanism 44, the corresponding middle through hole 511b on the unloading base plate 511 is covered, and the third sensor 55 sends a photoelectric signal to the controller 6, and then the controller 6 sends an instruction, the middle second mini cylinder 54 inhales air, and the output end extends downward to first insert the middle towel piece from the unloading port 511a into the punching hole directly below. At this time, the sensing end of the middle third sensor 55 is facing the corresponding through hole 511b on the unloading base plate 511 below it, and the third sensor 55 sends a photoelectric signal to the controller 6 again, and then the controller 6 sends an instruction again, and the middle second mini cylinder 54 deflates and resets the output end to the highest point, and then the eighth cylinder 53 inhales air, driving the drag rod 53a to move the towel pieces on both sides to the middle to the second mini cylinders on both sides. The air cylinder 54 is directly below the second mini cylinder 54, and then the second mini cylinders 54 on both sides inhale, inserting the towel pieces on both sides from the corresponding unloading ports into the punching holes directly below, completing the first punching hole pushing. At this time, all the sensing ends of the third sensors 55 are directly facing the corresponding through holes 511b on the unloading bottom plate 511, and the third sensors 55 continue to send photoelectric signals to the controller 6, and the controller 6 continues to send instructions. After a pair of eighth air cylinders 53 and the second mini cylinders 54 on both sides are deflated and reset at the same time, the second screw slide module 422 rotates forward, and drives the second conveyor 41 to move the second mini cylinder 54 forward to the top of the second punching hole through the connecting seat 423, repeating the vertical downward pushing action to complete the second punching hole pushing. Then, the second screw slide module 422 reverses, and drives the second conveyor 41 to move the second mini cylinder 54 backward to the top of the first punching hole through the connecting seat 423, and repeats the cycle.

[0074] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0075] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A compressed towel automatic feeding machine, comprising a base (1), a conveying and sorting device (2), a lifting and sucking device (3), a spreading and conveying device (4), a feeding device (5), and a controller (6), characterized in that: The conveying and sorting device (2) is horizontally mounted on the right end of the base (1), the lifting and sucking device (3) is longitudinally mounted in the middle of the base (1), the right side is connected to the left end of the conveying and sorting device (2), and the left side is connected to the paving conveying device (4), the paving conveying device (4) is horizontally mounted on the left end of the base (1), and the two ends are respectively connected to the paving conveying device (4) and the unloading device (5), the unloading device (5) is vertically mounted on the discharge end of the paving conveying device (4), the controller (6) is arranged on one side of the paving conveying device (4), and is respectively communicated with the conveying and sorting device (2), the lifting and sucking device (3), the paving conveying device (4), and the unloading device (5), and the conveying and sorting device (2) is arranged at the discharge end of the first conveyor, and the automatic sorting and loading of the towel pile on all four sides is realized under the action of the cylinder; The unloading device (5) comprises an unloading seat plate (51), a cylinder seat (52), an eighth cylinder (53), a second mini cylinder (54), and a third sensor (55). The unloading seat plate (51) comprises an unloading bottom plate (511), a front seat (512), and a rear side plate (513). The rear end of the unloading bottom plate (511) is provided with a plurality of unloading ports (511a), and the front end is provided with a through hole (511b). The lower end of the front seat (512) is fixedly connected to the front edge of the unloading bottom plate (511), and the rear side plate (513) is fixedly connected to the rear edge of the top surface of the front seat (512). A pair of cylinder seats (52) are fixedly mounted on both sides of the unloading bottom plate (511). On the side, a pair of the eighth cylinders (53) are horizontally and laterally slidably mounted on the back of the rear side plate (513), and the output ends are fixedly connected to the cylinder seats (52) on the corresponding sides, and the bottom surfaces are provided with vertically downward drag rods (53a). Several of the second mini cylinders (54) are vertically and side by side fixedly mounted on the top surface of the front seat (512) and facing the center of the punching hole. The output end of the middle second mini cylinder (54) faces the center of the middle towel piece, and the output ends of the other second mini cylinders (54) face the intersection of adjacent towel pieces. The third sensors (55) are vertically and side by side fixedly mounted on the front end of the top of the front seat (512) at intervals, and the sensing ends all face the corresponding through holes (511b).

2. The automatic compressed towel feeding machine according to claim 1, characterized in that: The base (1) comprises a pedestal (11), a cabinet (12), and an air source station. A conveying and sorting device (2) is installed at the right end of the pedestal (11), a lifting and suction device (3) is installed in the middle, and a cabinet (12) is fixedly installed at the left end. A controller (6) is provided on one side of the top surface of the cabinet (12), and a paving and conveying device (4) is installed horizontally, and an air source station is provided inside.

3. The automatic compressed towel feeding machine according to claim 1, characterized in that: The conveying and sorting device (2) comprises a frame (201), a first conveyor (202), a gantry (203), a first cylinder (204), a second cylinder (205), a rear push plate (206), a sorting bottom plate (207), a third cylinder (208), a side clamp (209), a fourth cylinder (210), a first front baffle (211), and a first sensor (212). The frame (201) is fixedly mounted on the right end of the base (1). The first conveyor (202) is horizontally arranged on the top of the frame (201) for horizontally conveying the towel stack. The two upright columns of the gantry (203) are fixedly mounted on both sides of the first conveyor (202). The first cylinder (204) is horizontally fixedly mounted on the top surface of the crossbeam of the gantry (203), with the output end facing the feeding direction horizontally. The second cylinder (205) is vertically set on the left side of the gantry (203), and the right side is connected to the output of the first cylinder (204). The output end is fixedly connected, and the output end is vertically downward. The top of the rear push plate (206) is fixedly connected to the output end of the second cylinder (205). The arranging bottom plate (207) is horizontally fixedly installed on the discharge end of the first conveyor (202), and the plate surface is horizontally connected to the conveyor belt of the first conveyor (202). A pair of the third cylinders (208) are respectively arranged on both sides of the discharge end of the first conveyor (202), and the output ends are horizontally facing the towel pile. A pair of the side clamps (209) are fixedly connected to the output ends of the corresponding third cylinders (208). The fourth cylinder (210) is vertically fixedly arranged below the left end of the frame (201), and the output end is upward. The first front baffle (211) movably passes through the arranging bottom plate (207), and the lower end is fixedly connected to the output end of the fourth cylinder (210). The first sensor (212) is horizontally fixedly arranged at the left end of one side of the first conveyor (202), and the sensing end faces the side of the towel pile.

4. The automatic compressed towel feeding machine according to claim 2, characterized in that: The jacking and sucking device (3) comprises a mounting base (31), an outer bracket (32), a jacking mechanism (33), a lifting mechanism (34), a sliding mechanism (35), and a sucking mechanism (36). The mounting base (31) is fixedly mounted on the middle part of the base (11), the outer bracket (32) is fixedly mounted on the mounting base (31), the jacking mechanism (33) is fixedly mounted on the mounting base (31), the lifting mechanism (34) is vertically arranged on the inner side of the outer bracket (32), the sliding mechanism (35) is horizontally arranged just above the jacking mechanism (33), and is slidably connected to the lifting mechanism (34), and one end of the sucking mechanism (36) is fixedly mounted on the crossbeam of the outer bracket (32), and the other end is fixedly mounted on the sliding mechanism (35). The supporting mechanism (35) is opposite to the supporting mechanism (35), and the lifting mechanism (33) includes a motor bracket (3301), a first motor (3302), a coupling (3303), a screw (3304), an optical axis (3305), a seventh cylinder (3306), a screw nut (3307), a linear bearing (3308), a second front baffle (3309), an inner bracket (3310), a second sensor (3311), a sensor sheet (3312), a first supporting plate (3313), and a first side plate (3314). The motor bracket (3301) is movable through the mounting base plate (31), the first motor (3302) is fixedly connected to the bottom of the motor bracket (3301), and the output end is movable through the motor bracket (3301). ) bottom end is fixedly connected to the lower end of the coupling (3303), the coupling (3303) is arranged in the motor bracket (3301), and the upper and lower ends are respectively fixedly connected to the lower end of the screw rod (3304) and the output end of the first motor (3302), the screw rod (3304) is respectively connected to the top of the motor bracket (3301) in a rolling manner, and the screw nut (3307) is screwed, and the top end is connected to the bottom surface of the first support plate (3313) in a rolling manner. A pair of optical axes (3305) are respectively arranged on both sides of the screw rod (3304), and after movably passing through the corresponding linear bearings (3308), the upper and lower ends are respectively fixedly connected to the first support plate (3313) and the top of the motor bracket (3301), and the seventh cylinder (3306) is fixed. The inner bracket (3310) is fixedly mounted in front of the top crossbeam of the inner bracket (3310), with the output end facing vertically upwards. The screw nut (3307) is fixedly mounted in the top crossbeam of the inner bracket (3310). A pair of linear bearings (3308) are respectively fixedly mounted at both ends of the top crossbeam of the inner bracket (3310). The second front baffle (3309) is vertically mounted on the output end of the seventh cylinder (3306). The inner bracket (3310) is vertically fixedly mounted on the mounting base (31). The second sensor (3311) is horizontally fixedly mounted on the front side of one end of the inner bracket (3310). The sensor sheet (3312) is vertically fixedly mounted on the front side of one end of the first support plate (3313), opposite to the second sensor (3311).The first support plate (3313) is connected to the top of the screw rod (3304) and the top of the optical axis (3305) respectively, and its width is smaller than the length of the towel pile. A pair of the first side plates (3314) are respectively vertically fixed at the left and right ends of the first support plate (3313), and are respectively in the same plane with the two sides of the adjacent towel pile. The lifting mechanism (34) includes a first slide rail (341), a first slider (342), a connecting plate (343), a stopper (344), and a first screw rod slide module (345). A pair of the first slide rails (341) are vertically and parallelly installed at intervals on the inner side of the outer bracket (32). A pair of the first sliders (342) are respectively slidably connected to the corresponding first slide rails (341). The connecting plate (343) is laterally fixed horizontally. The first guide rail (341) and the second guide rail (342) are fixedly mounted on a pair of first sliders (342), a pair of the stoppers (344) are respectively against the lower ends of the corresponding first slide rails (341), and are fixedly mounted on the outer bracket (32), the first screw slide module (345) is vertically fixedly mounted on the other inner side of the outer bracket (32), and is opposite to the pair of first slide rails (341), the slide support mechanism (35) includes a first slide seat (351), a second slide rail (352), a second slider (353), a second support plate (354), a first mini cylinder (355), and a second side plate (356), a pair of the first slide seats (351) are respectively horizontally mounted on the connecting plate (343) and the slide of the first screw slide module (345), a pair of the second slide rails (352) are respectively horizontally mounted on the connecting plate (343) and the slide of the first screw slide module (345), Installed on the corresponding first slide (351), two pairs of the second sliders (353) are respectively slidably connected to the corresponding second slide rails (352), a pair of the second support plates (354) are horizontally fixed on the second slider (353), and the spacing between them is adjusted by sliding the second slider (353), and the minimum spacing is equal to the width of the first support plate (3313). Initially, the horizontal position of the pair of second support plates (354) is at the front and rear ends of the second slide rail (352) with the maximum spacing, and the vertical position is at the lowest end, flush with the highest position of the first support plate (3313) after being lifted. A pair of the first mini cylinders (355) are respectively fixedly installed horizontally at the two ends of the first slide (351) on one side, and the output ends are respectively connected to the adjacent second support plates ( 354) are fixedly connected, two pairs of the second side plates (356) are respectively installed on the corresponding second supporting plates (354) at intervals, with the interval being the horizontal width of the towel pile, and are in the same vertical plane as the first side plates (3314) on the corresponding side, the suction mechanism (36) includes a fifth cylinder (361), a sixth cylinder (362), a pressure plate (363), and a negative pressure absorber (364), the fifth cylinder (361) is fixedly set on the crossbeam of the outer bracket (32), the output end is horizontally backward, and the initial state is the front end, the sixth cylinder (362) is fixedly connected to the fifth cylinder (361), the output end is vertically downward, and initially, its output end is at the top end, the pressure plate (363) is fixedly connected to the output end of the sixth cylinder (362),A plurality of negative pressure suckers (364) are fixedly mounted on the bottom surface of the pressing plate (363), with the suction ends facing the towels, and the number of the negative pressure suckers matches the number of towels in each layer of the towel stack.

5. The automatic compressed towel feeding machine according to claim 4, characterized in that: The paving conveying device (4) includes a second conveyor (41), a transfer mechanism (42), a spring-loaded mechanism (43), and an auxiliary pressure conveying mechanism (44). The second conveyor (41) is horizontally mounted on the transfer mechanism (42) along the loading direction and is initially adjacent to the suction mechanism (36). The bottom of the transfer mechanism (42) is fixedly connected to the top surface of the cabinet (12). The spring-loaded mechanism (43) is arranged at the feeding end of the second conveyor (41) and is horizontally connected to the auxiliary pressure conveying mechanism (44). The auxiliary pressure conveying mechanism (44) is arranged at the discharging end of the second conveyor (41). The transfer mechanism (42) includes a connecting bottom plate (421), a second screw slide module (422), and a connecting seat (423). The connecting bottom plate (421) is fixedly mounted on the top surface of the cabinet (12), the second screw slide module (422) is horizontally arranged between the connecting base plate (421) and the connecting seat (423) along the direction of towel conveying, the bottom surface is fixedly connected to the top surface of the connecting base plate (421), the slide is fixedly connected to the bottom surface of the connecting seat (423) upward, the connecting seat (423) is arranged directly below the second conveyor (41), and is fixedly connected to both sides of the second conveyor (41). Initially, above the rear end of the second screw slide module (422), the elastic mechanism (43) includes an axle seat (431), a transverse axis (432), a wheel seat (433), a resisting wheel (434), and an elastic bar (435). A pair of the axle seats (431) are arranged facing each other on the second conveyor (41). 1) On both sides of the feeding end, the two ends of the transverse shaft (432) are respectively connected to the corresponding shaft seats (431) in a rolling manner, the upper ends of the plurality of wheel seats (433) are fixedly sleeved with the transverse shaft (432), and the lower ends are close to the feeding end of the second conveyor (41), and the plurality of push wheels (434) are rollingly arranged on one side of the corresponding wheel seats (433), and the number thereof matches the number of towels in each layer of the towel stack, and the rear ends of the plurality of elastic bars (435) are fixedly sleeved with the transverse shaft (432) upward through the lower edge of the transverse shaft (432), and the front ends respectively extend to the bottom of the rear end of the auxiliary pressure transmission mechanism (44), and transmit the elastic force of the elastic bars (435) to the wheel seat (433), so that the push wheels (434) are pressed against the conveyor belt of the second conveyor (41) through the wheel seat (433), and the auxiliary pressure transmission mechanism (44) includes a double-axle seat (4401), a transmission shaft (4402), a transmission pulley (4403), a first synchronous belt (4404), a passive pulley (4405), a driving pulley (4406), a second synchronous belt (4407), a motor mounting plate (4408), a synchronous motor (4409), a driven shaft (4410), and a driven pulley (4411). A pair of the double-axle seats (4401) are fixedly mounted on both sides of the discharge end of the second conveyor (41). The transmission shaft (4402) is rollingly mounted between the front ends of the pair of double-axle seats (4401), one end of which protrudes from the double-axle seat (4401) on the corresponding side. A plurality of the transmission pulleys (4403) are fixedly mounted on the transmission shaft (4402) at intervals.The two ends of the first synchronous belts (4404) are respectively connected to the driving pulley (4403) and the driven pulley (4411), and the rear ends are directly above the front ends of the corresponding elastic bars (435) and are against the front ends of the elastic bars (435). The passive pulley (4405) is fixedly connected to the protruding end of the transmission shaft (4402), and the active pulley (4406) is fixedly connected to the output shaft of the synchronous motor (4409). The two ends of the second synchronous belt (4407) are respectively connected to the passive pulley (4405) and the active pulley (4406). The motor mounting plate (4408) is vertically fixedly mounted on the double-axle seat (4401) corresponding to the passive pulley (4405). ) outside, the synchronous motor (4409) is horizontally fixedly mounted on the outside of the motor mounting plate (4408), and the output end passes through the motor mounting plate (4408). The driven shaft (4410) is fixedly mounted between the rear ends of a pair of double-axle seats (4401), and a plurality of driven pulleys (4411) are fixedly mounted on the driven shaft (4410) at intervals. The stop wheel (434), wheel seat (433), spring bar (435), driven pulley (4411), second synchronous belt (4407), and transmission pulley (4403) are arranged on the second conveyor (41) along the towel transmission direction, and the number and position of the towels in each layer of the towel stack match the number and position of the towels in each layer.

6. The automatic compressed towel feeding machine according to claim 1, 2, 3, 4 or 5, wherein the feeding method comprises the following steps: S1. Horizontal intermittent stacking: When the towel stack is placed on the conveyor belt of the first conveyor (202) and transported between a pair of side clamps (209), the first sensor (212) sends a photoelectric signal to the controller (6), and the controller (6) issues an instruction for the first conveyor (202) to pause. Then the fourth cylinder (210) and the second cylinder (205) both inhale air to respectively drive the first front baffle (211) upward and the rear push plate (206) downward to their proper positions. Then the first cylinder (204) drives the rear push plate (206) forward and, with the cooperation of the first front baffle (211), completes the shaping of the front and rear sides of the towel stack. Then, a pair of third cylinders (208) simultaneously drives the corresponding side clamps (209) to be pushed toward both sides of the towels to complete the shaping and positioning of the two sides of the towel stack. At this time, the first support plate (3313) ), the arranging bottom plate (207) is in the same plane, the second sensor (3311) is opposite to the sensor plate (3312), the second sensor (3311) sends a photoelectric signal to the controller (6), the controller (6) sends a command, the fourth cylinder (210) deflates and drives the first front baffle (211) to reset downward, then the first conveyor (202) resumes work, the first cylinder (204) continues to intake air to drive the rear push plate (206) to continue to push forward, and push the towel stack onto the first supporting plate (3313), and between a pair of first side plates (3314), finally, a pair of third cylinders (208) deflate at the same time to drive the corresponding side clamping plates (209) to retract and reset, the second cylinder (205) and the first cylinder (204) deflate at the same time to drive the rear push plate (206) to reset upward and to the right respectively; S2. Vertically lifting the stack: When S1 is completed, the controller (6) issues a command, and the seventh cylinder (3306) sucks air to drive the second front baffle (3309) upward, supporting the towel stack in front to prevent it from overturning during the lifting process. At the same time, the first motor (3302) drives the screw (3304) to rotate in the screw nut (3307) through the coupling (3303), thereby driving the optical axis (3305) along the linear bearing (3308) to lift the first support plate (3313) to between the pair of second support plates (354). At this time, the top surface of the first support plate (3313) is flush with the second support plate (354), and the bottom surface of the towel stack is just flush with the top surface of the pair of second support plates (354), completing the lifting of the towel stack; S3. Horizontal sliding stacking: When S2 is completed, a pair of first mini cylinders (355) simultaneously inhale air, driving a pair of second slide rails (352) and then driving a pair of second support plates (354) to slide toward each other until the pair of second support plates (354) are connected to the first support plate (3313). At this time, the pair of towel stacks is just above the second support plates (354) and located between the two pairs of second side plates (356), completing the second support plates (354) receiving the towel stacks. Then the seventh cylinder (3306) releases air to drive the second front baffle (3309) to move downward and reset. At the same time, the first motor (3302) drives the screw rod (3304) to rotate in the opposite direction in the screw rod nut (3307) through the coupling (3303), driving the first support plate (3313) to move downward and reset to receive the new towel stack. S4. Vertical stacking adsorption: When S3 is completed, the first screw slide module (345) rotates forward to drive a pair of second support plates (354) to move upward. When the towel stack approaches the bottom of the negative pressure absorber (364), the fifth cylinder (361) sucks air to push the sixth cylinder (362) backward. Then the sixth cylinder (362) sucks air through the pressure plate (363) to drive the negative pressure absorber (364) downward to the topmost towel piece, and uses negative pressure to absorb the towel piece onto the negative pressure absorber (364). Then the sixth cylinder (362) deflates air to drive the negative pressure absorber (364) upward. After reaching the highest point, the fifth cylinder (361) releases air and transmits the towel pieces on the negative pressure suction device (364) to the intersection of the wheel (434) and the conveyor belt of the second conveyor (41), thereby evenly and orderly sucking the towel stack piece by piece to the input end of the paving conveyor device (4), until the towel pieces on the towel stack are completely sucked, the first screw slide module (345) reverses and drives the pair of second support plates (354) to return to the lowest point, and at the same time, the pair of first mini cylinders (355) release air at the same time, driving the second support plates (354) to return to their original position; S5. Horizontal feeding piece by piece: After S4 is completed, the towel pieces enter the bottom of the elastic bar (435) in an orderly manner with the movement of the conveyor belt, and are guided by the elastic bar (435) to the intersection of the rear end of the first synchronous belt (4404) and the conveyor belt of the second conveyor (41). Then, the synchronous motor (4409) drives the transmission shaft (4402) to rotate counterclockwise via the active pulley (4406), the second synchronous belt (4407), and the passive pulley (4405), and then drives the driven pulley (4411) to rotate counterclockwise synchronously via the first synchronous belt (4404), so that the towel pieces are transported between the second conveyor (41) and the first synchronous belt (4404) to the discharge end of the second conveyor (41), and enter the bottom of the unloading device (5); S6. Planting the first punching hole: After S5 is completed, when the towel piece is transferred to the bottom of the third sensor (55), the middle towel piece first covers the middle through hole (511b), and the third sensor (55) sends a photoelectric signal to the controller (6), and then the controller (6) sends a command, the middle second mini cylinder (54) inhales air, and the output end extends downward to plant the middle towel piece from the feed opening (511a) into the punching hole directly below, so that the middle through hole (511b) is unobstructed, so that the sensing end of the middle third sensor (55) is facing the middle The through hole (511b) of the second mini cylinder (54) is opened, and the third sensor (55) sends a photoelectric signal to the controller (6) again, and then the controller (6) sends a command again, and the second mini cylinder (54) in the middle is deflated and reset to the highest point. Then the eighth cylinder (53) inhales air, driving the drag rod (53a) to move the towel pieces on both sides to the middle and directly below the second mini cylinders (54) on both sides. The second mini cylinders (54) on both sides inhale air, and the output ends extend downward to implant the towel pieces on both sides from the corresponding blanking port into the punching hole directly below, completing the first punching hole implantation; S7. Planting of the second punching hole: After S6 is completed, the sensing ends of all the third sensors (55) are directly facing the through holes (511b) corresponding to the blanking bottom plate (511), and the third sensors (55) continue to send photoelectric signals to the controller (6). The controller (6) continues to send instructions, and a pair of eighth cylinders (53) and the second mini cylinders (54) on both sides are simultaneously deflated and reset. Then, the second screw slide module (422) rotates forward, and drives the second conveyor (41) through the connecting seat (423) to move the second mini cylinder (54) forward to the top of the second punching hole. Repeat the S6 action to complete the planting of the second punching hole. Then, the second screw slide module (422) reverses, and drives the second conveyor (41) through the connecting seat (423) to move the second mini cylinder (54) backward to the top of the first punching hole, and the cycle continues.

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