Automatic packing machine for brake spring

Abstract

The application relates to an automatic packaging machine for brake spring sheets, and belongs to the technical field of packaging equipment. The structure of the packaging machine comprises a conveying assembly, one end of the conveying assembly is provided with a baffle ring, a bearing hopper is arranged in the baffle ring, the bearing hopper has the freedom of sliding along the longitudinal direction of the baffle ring, a material blocking plate is arranged at the bottom of the bearing hopper, one side of the baffle ring is provided with a weighing assembly, the weighing assembly comprises a driving block, a driving cavity, a separation rod and a separation cylinder, the driving cavity is arranged in the side wall of the baffle ring, the driving block is slidingly arranged in the driving cavity, the driving block in the bearing hopper driving assembly slides to the driving cavity, the separation cylinder is arranged outside the baffle ring and communicates with the driving cavity, one end of the separation rod is slidingly arranged in the separation cylinder, and the other end of the separation rod is arranged on the conveying assembly; the separation rod is used for driving the conveying assembly to slide; a packaging mechanism is arranged below the bearing hopper; and the application has the technical effects of precise linkage, stable conveying and reduced scattering.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of packaging equipment, in particular to an automatic packaging machine for brake spring sheets. BACKGROUND

[0002] As a key precision component for ensuring braking stability in the automobile braking system, brake spring sheets have the characteristics of small size, large quantity, and fixed weight or quantity packaging. They are packaged by packaging film, and the packaging quality directly affects the safety of subsequent storage and transportation and the efficiency of the assembly process. With the rapid development of the automobile manufacturing industry towards scale and standardization, traditional manual packaging has been difficult to meet the demand for efficient production, and automatic packaging machines for brake spring sheets have gradually become essential equipment in the industry. The market continues to demand higher levels of automation, operational stability, and adaptability.

[0003] Existing automatic packaging machines for brake spring sheets mostly use a single conveying structure in combination with a weighing component to complete feeding and quantification. Some devices require manual assistance for resetting after the unloading of the carrying hopper, and lack of collaborative design for batch feeding and precise replenishment, resulting in problems such as process connection breakpoints and material spillage.

[0004] In view of the above related technologies, the inventors believe that there are defects such as lagging response of the linkage between quantitative weighing and transmission start-stop and lack of stable mechanical collaboration in process connection. SUMMARY

[0005] To solve the above technical problems, the present application provides an automatic packaging machine for brake spring sheets.

[0006] The automatic packaging machine for brake spring sheets provided by the present application adopts the following technical solution:

[0007] An automatic packaging machine for brake spring sheets, comprising a conveying assembly, one end of the conveying assembly is provided with a blocking ring; a carrying hopper is arranged in the blocking ring, the carrying hopper has a freedom of sliding along the longitudinal direction of the blocking ring; a material blocking plate is arranged at the bottom of the carrying hopper; a weighing assembly is arranged on one side of the blocking ring, the weighing assembly comprises a driving block, a driving cavity, a separation rod and a separation cylinder; the driving cavity is arranged in the side wall of the blocking ring, and the driving block is slidingly arranged in the driving cavity; the carrying hopper drives the driving block to slide into the driving cavity; the separation cylinder is arranged outside the blocking ring and is in communication with the driving cavity; one end of the separation rod is slidingly arranged in the separation cylinder, and the other end of the separation rod is arranged on the conveying assembly; the separation rod is used to drive the conveying assembly to slide; a packaging mechanism is arranged below the carrying hopper.

[0008] By adopting the above technical scheme, one end of the conveying assembly is provided with a baffle ring, a bearing hopper is arranged in the baffle ring, and quantitative control is realized through mechanical linkage of the bearing hopper and the weighing assembly. When the brake washer accumulates to a set weight in the bearing hopper, the bearing hopper will slide to trigger the driving block by gravity, and the separation rod is driven to slide through linkage of the driving cavity and the separation cylinder, so as to control the conveying assembly to stop, avoid overfeeding, realize instant response of weighing up to standard and starting and stopping of the conveying assembly, speed up the linkage response of quantitative weighing and conveying starting and stopping, meet the standardized production requirements, ensure that the weight of each batch of packaging materials is consistent, meet the standardized production requirements of brake washer precision parts, realize automatic continuous operation of brake washer conveying, weighing, feeding and packaging, can run continuously for a long time, greatly improve the packaging capacity per unit time, and is especially suitable for scenes of batch production of brake washers. It can match the output speed of the front-end stamping production line, and avoid production stagnation caused by lagging packaging links.

[0009] Preferably, a plurality of tension springs are arranged between the bearing hopper and the baffle ring, one end of the tension spring is fixedly arranged in the bearing hopper, and the other end of the tension spring is fixedly arranged on the baffle ring. The bottom of the baffle ring is provided with a plurality of top blocks.

[0010] By adopting the above technical scheme, the tension spring can pull the bearing hopper back to the initial position quickly after the material is fed into the packaging mechanism through the elastic force of the tension spring. After reset, the bearing hopper can immediately receive the next batch of conveyed brake washers, realize automatic circulation of weighing, feeding, resetting and reweighing, avoid process interruption, and greatly improve the continuous packaging efficiency. The top block is used to abut and start other components.

[0011] Preferably, a plurality of switch structures are arranged on the side surface of the bearing hopper, the switch structure comprises a pressing plate, a reset spring, a rack and a gear, the gear is rotationally arranged at the bottom of the bearing hopper, and one end of the pressing plate is arranged on the gear; the rack is slidingly arranged on the side of the bearing hopper, the rack is in meshing transmission with the gear; the pressing plate is fixedly arranged on the top of the rack; one end of the reset spring is fixedly arranged on the pressing plate, and the other end of the reset spring is fixedly arranged on the bearing hopper.

[0012] By adopting the above technical scheme, after the bulk feeding is completed, the weighing assembly triggers the partial shutdown of the corresponding conveying assembly, and the other part of the conveying assembly feeds the single precise material to make the weight of the carrying bucket reach the final set value, and then the carrying bucket slides to the lowest position, at this time the top block abuts against the pressing plate, and the stop plate is driven to rotate and unload by the meshing transmission of the rack and pinion. The whole process realizes the closed loop of bulk feeding efficiency, precise feeding control precision, and automatic unloading of weight reaching the standard. The triggering of the on-off structure depends on the gravity sliding of the carrying bucket and the mechanical contact of the top block. After the weight of the carrying bucket reaches the standard, the pressing plate is automatically slid to trigger the stop plate. The pressing plate drives the rack and pinion to drive the stop plate to open and unload. After unloading is completed, the tension spring pulls the carrying bucket to reset, the return spring synchronously drives the pressing plate and the rack to return to the initial position, the stop plate is automatically closed, and the carrying bucket immediately enters the next round of material receiving state.

[0013] Preferably, the side of the stop plate is provided with a stopping assembly, the stopping assembly comprising a sliding block and a stopping rod; the sliding block is slidingly arranged on the outside of the stop plate; one end of the stopping rod is rotatably arranged on the sliding block, and the other end of the stopping rod is rotatably arranged on the conveying assembly.

[0014] By adopting the above technical scheme, while the stop plate rotates to unload, the stopping rod is driven to rotate by the sliding block, so that the other part of the transmission assembly slides upward to directly trigger the other part of the conveying assembly to stop, avoiding the problem that the precise feeding section still feeds excess material after unloading due to not stopping in time, and ensuring that the weight of the material in the carrying bucket has completely reached the standard when the carrying bucket is unloaded, completely eliminating the quantitative deviation.

[0015] Preferably, the conveying assembly comprises a support frame, a plurality of auxiliary rollers, a first conveying belt, a second conveying belt, a first driving device and a second driving device; the plurality of auxiliary rollers are rotatably arranged on both sides of the support frame; the first driving device and the second driving device are slidingly arranged in the middle of the support frame; the first conveying belt is sleeved on one side of the first driving device and the plurality of auxiliary rollers; and the second conveying belt is sleeved on the other side of the second driving device and the plurality of auxiliary rollers.

[0016] By adopting the above technical scheme, the first conveying belt is driven by the first driving device and is responsible for bulk feeding; the second conveying belt is independently driven by the second driving device and is responsible for single precise feeding. The two do not interfere with each other, and the running speed of the two conveying belts can be adjusted according to the feeding demand of the brake sheet. The first driving device and the second driving device realize the start-stop control of the conveying belt by sliding, match the previous weighing assembly and stopping assembly linkage logic, and guarantee the precision and efficiency of segmented feeding. The plurality of auxiliary rollers are symmetrically distributed on both sides of the support frame to provide uniform support for the double conveying belts and avoid slackening, deviation or wrinkling of the conveying belt during operation.

[0017] Preferably, the first driving device comprises a first driving roller and a first motor; the working end of the first motor is arranged on the first driving roller, and the first driving roller and the first motor have a freedom of sliding along the longitudinal direction of the support frame; and the base of the first motor is arranged on the other end of the separation rod.

[0018] By adopting the above technical scheme, the base of the first motor is rotationally connected with the separation rod, and when the load bucket weighing reaches the standard to trigger the separation rod to slide, the first motor and the first driving roller can be directly driven to slide along the longitudinal direction of the support frame, so as to quickly control the start and stop of the first conveying belt. The first motor directly drives the first driving roller to rotate, power transmission is lossless, a stable transmission speed can be provided for the first conveying belt, and the uniformity and continuity of batch feeding of the brake pad spring sheet are ensured.

[0019] Preferably, the second driving device comprises a second driving roller and a second motor; the working end of the second motor is arranged on the second driving roller, and the second driving roller and the second motor have a freedom of sliding along the longitudinal direction of the support frame; and the base of the second motor is rotationally arranged on the other end of the stop rod.

[0020] By adopting the above technical scheme, the base of the second motor is rotationally connected with the stop rod, and when the material blocking plate is opened for unloading, the stop assembly directly drives the second motor and the second driving roller to slide along the longitudinal direction of the support frame through the stop rod, so as to realize the synchronous stop of the second conveying belt. The second motor independently drives the second driving roller, can accurately adjust the rotating speed, realizes the slow feeding of the brake pad spring sheet one by one, and meets the rhythm requirement of accurate feeding.

[0021] Preferably, the packaging mechanism comprises a conveying assembly, a sealing and cutting assembly, a bag making hopper, a plurality of first push rods and a mounting frame; the conveying assembly is arranged at one end of the mounting frame; the bag making hopper is arranged on the mounting frame through a plurality of first push rods, and is located at the other end of the mounting frame; a plurality of first push rods are arranged on both sides of the bag making hopper respectively, the base of the first push rod is arranged on the mounting frame, and the working end of the first push rod is arranged on the bag making hopper; a supporting claw is arranged on the outlet end of the bag making hopper; and the sealing and cutting assembly is arranged on the mounting frame below the bag making hopper.

[0022] By adopting the above technical scheme, the bag making hopper receives the material unloaded by the load bucket, the first push rod drives the bag making hopper to adjust the position, cooperates with the supporting claw to fix the shape of the packaging bag, realizes rapid feeding, and after the feeding is completed, the sealing and cutting assembly below synchronously completes the sealing and cutting of the packaging bag, the conveying assembly conveys the finished product to the next link, greatly improves the overall packaging efficiency, the supporting claw can accurately fix the opening of the packaging bag, avoids displacement and collapse of the packaging bag during feeding, ensures that the brake pad spring smoothly falls into the bag, and reduces material spilling.

[0023] Preferably, the conveying assembly comprises a traction roller set, a driving roller set and a limiting block; the traction roller set is arranged at one end of the mounting frame; the driving roller set is arranged on the mounting frame at one side of the traction roller set; the limiting block is arranged on the mounting frame and located above the driving roller set.

[0024] By adopting the above technical scheme, the driving roller set provides continuous and uniform traction force, cooperates with the traction roller set to synchronously drive the packaging finished product to the subsequent link, avoids the accumulation or jamming of the finished product, and the limiting block is located above the driving roller set to form an up-down limiting conveying channel, which can effectively limit the conveying posture of the packaging finished product and avoid the side turning, deviation or stacking of the finished product during the conveying process.

[0025] Preferably, the sealing and cutting assembly comprises a plurality of second push rods, a matching block and a heat sealing knife; the bases of the plurality of first push rods are arranged on the mounting frame, the heat sealing knife is arranged at the working end of the second push rod, the heat sealing knife is slidingly arranged on the mounting frame, and the matching block is arranged on the mounting frame between the plurality of second push rods.

[0026] By adopting the above technical scheme, the second push rod drives the heat sealing knife to move accurately, realizes heat sealing by matching with the matching block, completes the sealing and cutting of the packaging bag, the heat sealing knife has strong heating uniformity, the matching block provides stable support, ensures that the sealing is flat and firm, has no leakage or false sealing, avoids that the brake spring is damp or scattered during the subsequent conveying and storage, and the plurality of second push rods can be independently adjusted in the extension stroke to accurately align the sealing and cutting area of the packaging bag.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] After the batch feeding is completed, the weighing assembly triggers the partial shutdown of the corresponding conveying assembly, another part of the conveying assembly precisely feeds the single load bucket to reach the final set value, and then the load bucket slides to the lowest position, at which time the top block pushes against the pressing plate, the rack and pinion are engaged and driven to rotate the baffle plate to unload, the whole process realizes the closed loop of batch feeding efficiency, precise feeding accuracy, and automatic unloading of weight standard, the triggering of the on-off structure depends on the gravity sliding of the load bucket and the mechanical contact of the top block, the load bucket automatically slides to trigger the pressing plate after the load reaches the standard, the pressing plate drives the rack and pinion to drive the baffle plate to open and unload; after unloading is completed, the tension spring pulls the load bucket back to the original position, the return spring synchronously drives the pressing plate and the rack to return to the original position, and the baffle plate is automatically closed, and the load bucket immediately enters the next round of material receiving state.

[0029] The first conveying belt is driven by the first driving device and is responsible for batch feeding; the second conveying belt is independently driven by the second driving device and is responsible for single precise feeding, and the two do not interfere with each other, and the running speed of the two groups of conveying belts can be adjusted according to the feeding requirement of the brake pad, the first driving device and the second driving device realize the start-stop control of the conveying belt through sliding, match the linkage logic of the previous weighing assembly and the stop assembly, and guarantee the accuracy and efficiency of the segmented feeding, and a plurality of auxiliary rollers are symmetrically distributed on both sides of the support frame to provide uniform support for the double conveying belts and avoid slack, deviation or wrinkles during the running of the conveying belt. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure in the embodiment.

[0031] Figure 2 is a structural schematic diagram of the conveying assembly in the embodiment.

[0032] Figure 3 is a cross-sectional schematic diagram of the internal structure of the weighing assembly in the embodiment.

[0033] Figure 4 is a schematic diagram of the switch structure in the embodiment.

[0034] Figure 5 is a structural schematic diagram of the stop assembly in the embodiment.

[0035] BRIEF DESCRIPTION OF DRAWINGS: 1, conveying assembly; 11, support frame; 12, auxiliary roller; 13, first conveying belt; 14, second conveying belt; 15, first driving device; 151, first driving roller; 152, first motor; 16, second driving device; 161, second driving roller; 162, second motor; 2, blocking ring; 21, top block; 3, carrying hopper; 31, material blocking plate; 32, tension spring; 4, weighing assembly; 41, driving block; 42, driving cavity; 43, separation rod; 44, separation cylinder; 5, switch structure; 51, pressing plate; 52, return spring; 53, rack; 54, gear; 6, stop assembly; 61, sliding block; 62, stop rod; 7, packaging mechanism; 71, conveying assembly; 711, traction roller group; 712, driving roller group; 713, limiting block; 72, sealing and cutting assembly; 721, second push rod; 722, matching block; 723, hot sealing knife; 73, bag making hopper; 74, first push rod; 75, mounting frame; 76, supporting claw. DETAILED DESCRIPTION

[0036] The following will be described in detail in combination with the accompanying Figures 1-5 Further detailed description will be made to the present application.

[0037] The embodiment of the present application discloses an automatic packaging machine for brake pads. Referring to Figure 1, including conveying assembly 1, one end of conveying assembly 1 is provided with retaining ring 2; retaining ring 2 is provided with carrying bucket 3 inside, carrying bucket 3 has the freedom of sliding along the longitudinal direction of retaining ring 2, the lower part of carrying bucket 3 is provided with packaging mechanism 7, packaging mechanism 7 includes conveying assembly 71, sealing and cutting assembly 72, bag making hopper 73, multiple sets of first push rods 74 and mounting frame 75; conveying assembly 71 is arranged at one end of mounting frame 75; bag making hopper 73 is arranged on mounting frame 75 through multiple sets of first push rods 74, bag making hopper 73 is located at the other end of mounting frame 75; multiple sets of first push rods 74 are arranged on both sides of bag making hopper 73 respectively, the base of first push rod 74 is arranged on mounting frame 75, and the working end of first push rod 74 is arranged on bag making hopper 73; support claw 76 is arranged on the outlet end of bag making hopper 73; support claw 76 is used for supporting the opening of packaging film, so that the brake spring piece in carrying bucket 3 enters the packaging film through bag making hopper 73; sealing and cutting assembly 72 is arranged on mounting frame 75 below bag making hopper 73; conveying assembly 71 includes traction roller group 711, driving roller group 712 and limiting block 713; traction roller group 711 is arranged at one end of mounting frame 75; driving roller group 712 is arranged on mounting frame 75 on one side of traction roller group 711; limiting block 713 is arranged on mounting frame 75, and limiting block 713 is located above driving roller group 712; sealing and cutting assembly 72 includes multiple sets of second push rods 721, matching blocks 722 and hot sealing knives 723; the base of multiple sets of first push rods 74 is arranged on mounting frame 75, hot sealing knife 723 is arranged at the working end of second push rod 721, and hot sealing knife 723 is slidably arranged on mounting frame 75; matching block 722 is arranged on mounting frame 75 between multiple sets of second push rods 721; first push rod 74 drives bag making hopper 73 to slide up and down, and cooperates with hot sealing knife 723 to cut and heat seal the packaging film.

[0038] Referring to Figure 1 and Figure 2The conveying assembly 1 comprises a support frame 11, a plurality of auxiliary rollers 12, a first conveying belt 13, a second conveying belt 14, a first driving device 15 and a second driving device 16; the plurality of auxiliary rollers 12 are respectively rotationally arranged on both sides of the support frame 11; the first driving device 15 and the second driving device 16 are slidingly arranged in the middle of the support frame 11, the first conveying belt 13 is sleeved on one side of the first driving device 15 and the plurality of auxiliary rollers 12, and the second conveying belt 14 is sleeved on the other side of the second driving device 16 and the plurality of auxiliary rollers 12; the first driving device 15 comprises a first driving roller 151 and a first motor 152; the working end of the first motor 152 is arranged on the first driving roller 151, and the first driving roller 151 and the first motor 152 have a freedom degree of sliding along the longitudinal direction of the support frame 11; the base of the first motor 152 is arranged on the other end of the separation rod 43; the second driving device 16 comprises a second driving roller 161 and a second motor 162; the working end of the second motor 162 is arranged on the second driving roller 161, and the second driving roller 161 and the second motor 162 have a freedom degree of sliding along the longitudinal direction of the support frame 11; the base of the second motor 162 is rotationally arranged on the other end of the stop rod 62; the conveying device is divided into a first part and a second part, the rotation of the first conveying belt 13 and the second conveying belt 14 is controlled by the sliding of the first driving device 15 and the second driving device 16; the first part of the conveying device is loaded in a large amount in the early stage, after a certain weight is loaded, the first driving device 15 slides upward to stop the rotation of the first conveying belt 13 for feeding, and the second conveying belt 14 feeds one by one to ensure accurate loading.

[0039] With reference to Figure 2 and Figure 3The bottom of the bearing hopper 3 is provided with a material blocking plate 31; the material blocking plate 31 rotates on the bearing hopper 3; a plurality of tension springs 32 are arranged between the bearing hopper 3 and the blocking ring 2, one end of the tension spring 32 is fixedly arranged on the bearing hopper 3, and the other end of the tension spring 32 is fixedly arranged on the blocking ring 2; a plurality of jacks 21 are arranged at the bottom of the blocking ring 2; a weighing assembly 4 is arranged on one side of the blocking ring 2, and the weighing assembly 4 comprises a driving block 41, a driving cavity 42, a separation rod 43 and a separation cylinder 44; the driving cavity 42 is arranged in the side wall of the blocking ring 2, and the driving block 41 is slidingly arranged in the driving cavity 42; the bearing hopper 3 is slid downward to make the driving block 41 slide into the driving cavity 42; the separation cylinder 44 is arranged outside the blocking ring 2 and communicates with the driving cavity 42; one end of the separation rod 43 is slidingly arranged in the separation cylinder 44, and the other end of the separation rod 43 is arranged on the conveying assembly 1; the separation rod 43 is used to drive the conveying assembly 1 to slide; the conveying assembly 1 sends the brake spring piece into the bearing hopper 3, the bearing hopper 3 slides downward under the gravity of the brake spring piece, the top of the side of the bearing hopper 3 slides to the driving block 41, the driving block 41 slides into the driving cavity 42, the separation rod 43 slides out of the separation cylinder 44 through the medium, the separation rod 43 slides to push the first driving device 15 to slide upward, and the first conveying belt 13 is separated from the first driving device 15 to stop rotating to feed.

[0040] Referring to Figure 2 , Figure 3 and Figure 4 , a plurality of switch structures 5 are arranged on the side of the bearing hopper 3, the switch structure 5 comprises a pressing plate 51, a return spring 52, a rack 53 and a gear 54, the gear 54 is rotatably arranged at the bottom of the bearing hopper 3, and one end of the material blocking plate 31 is arranged on the gear 54; the rack 53 is slidingly arranged on the side of the bearing hopper 3 and is in meshing transmission with the gear 54; the pressing plate 51 is fixedly arranged at the top of the rack 53; one end of the return spring 52 is fixedly arranged on the pressing plate 51, and the other end of the return spring 52 is fixedly arranged on the bearing hopper 3; the second driving device 16 still cooperates with the second conveying belt 14, the second conveying belt 14 sends the brake spring piece into the bearing hopper 3 one by one, when the bearing hopper 3 completely slides to the bottom, the plurality of jacks 21 arranged at the bottom of the blocking ring 2 abut against the pressing plate 51 in the switch structure 5, the rack 53 slides upward to drive the gear 54 to rotate by abutting against the pressing plate 51, and the gear 54 rotates to open the material blocking plate 31 to send the brake spring piece into the packaging mechanism 7.

[0041] Referring to Figure 2 , Figure 3 and Figure 5The side of the material blocking plate 31 is provided with a stopping assembly 6, which comprises a sliding block 61 and a stopping rod 62. The sliding block 61 is slidingly arranged on the outside of the material blocking plate 31. One end of the stopping rod 62 is rotatably arranged on the sliding block 61, and the other end of the stopping rod 62 is rotatably arranged on the second driving device 16 in the conveying assembly 1. When the material blocking plate 31 is opened, the second driving device 16 is slid upward by the sliding block 61 and the stopping rod 62, so that the second conveying belt 14 is separated from the second driving device 16 to stop the feeding. After all the brake springs in the carrying bucket 3 are fed into the packaging mechanism 7, the weight of the carrying bucket 3 is reduced to reset by the tension spring 32. The reset of the carrying bucket 3 resets the remaining structure.

[0042] The working principle of the automatic packaging machine for brake spring sheets in the application is that the bearing hopper 3 is arranged in the blocking ring 2 through a plurality of sets of tension springs 32, the first motor 152 and the second motor 162 are synchronously started, the first driving roller 151 and the second driving roller 161 are driven to rotate, the first conveying belt 13 and the second conveying belt 14 are synchronously operated, the brake spring sheets are conveyed into the bearing hopper 3 in the blocking ring 2, and a large amount of rapid loading is realized.With the accumulation of brake pad, the weight of the carrying bucket 3 gradually increases, overcoming the tension of the tension spring 32, sliding along the retaining ring 2 longitudinally downward, when the carrying bucket 3 slides down to the top of the side surface and contacts the driving block 41 of the weighing assembly 4, the driving block 41 is pushed to retract into the driving cavity 42, the medium in the driving cavity 42 is compressed and then transmitted to the separation cylinder 44, pushing the separation rod 43 to extend outward, the other end of the separation rod 43 is connected to the base of the first motor 152 of the first driving device 15, thereby pushing the first driving device 15 to slide upward, making the first conveying belt 13 disengage from the first driving roller 151, and the first conveying belt 13 stops running, the coarse feeding stage ends, and the second conveying belt 14 keeps running to continue to accurately feed the brake pads into the carrying bucket 3 one by one, when the weight of the brake pads in the carrying bucket 3 reaches the set value, the carrying bucket 3 slides down to the bottom limit position of the retaining ring 2, at this time, the plurality of top blocks 21 at the bottom of the retaining ring 2 just contact the pressing plate 51 on the side surface of the carrying bucket 3, the top blocks 21 press the pressing plate 51, making the pressing plate 51 slide upward against the elastic force of the return spring 52, the pressing plate 51 drives the rack 53 to slide upward, the rack 53 meshes with the bottom gear 54 to drive the gear 54 to rotate, and the material blocking plate 31 fixedly connected with the gear 54 is turned downward to open, the brake pads in the carrying bucket 3 fall into the packaging film which has been opened under the action of gravity, and in the turning process of the material blocking plate 31, the sliding block 61 on the outside of the material blocking plate 31 slides to drive the stop rod 62 to move, the other end of the stop rod 62 is connected to the base of the second motor 162 of the second driving device 16, thereby driving the second driving device 16 to slide upward, making the second conveying belt 14 disengage from the second driving roller 161, and the second conveying belt 14 stops running to completely stop feeding, after the brake pads completely fall into the packaging film, the first push rod 74 is started to drive the bag making hopper 73 to slide downward, thereby driving the packaging film filled with materials to move downward to the working area of the sealing and cutting assembly 72, the second push rod 721 is started synchronously to push the two side heat sealing knives 723 to slide to the direction of the matching block 722, the film is transversely heat sealed through high temperature to form independent packaging units, after the sealing and cutting are completed, the second push rod 721 drives the heat sealing knives 723 to reset, the first push rod 74 drives the bag making hopper 73 to rise to the high position, and the supporting claws 76 are opened again to prepare for the next round of film traction, the packaging bags which have completed the sealing and cutting are separated from the bag making hopper 73 under the action of gravity and enter the subsequent conveying link, after the discharging is completed, the weight in the carrying bucket 3 suddenly decreases, the elastic force of the tension spring 32 drives the carrying bucket 3 to slide upward along the retaining ring 2 to recover to the initial high position, after the carrying bucket 3 slides upward, the driving block 41 loses pressure and resets, the gear 54 and the rack 53 reset through the return spring 52 to make the material blocking plate 31 close, the material blocking plate 31 drives the sliding block 61 to reset, and the conveying assembly 1 continues to work after resetting.

[0043] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An automatic packing machine for brake washers, characterized in that: The application relates to a conveying assembly (1) provided with a baffle ring (2) at one end, a bearing hopper (3) arranged in the baffle ring (2), the bearing hopper (3) having the freedom of sliding along the longitudinal direction of the baffle ring (2), a material blocking plate (31) arranged at the bottom of the bearing hopper (3), a weighing assembly (4) arranged at one side of the baffle ring (2), the weighing assembly (4) comprising a driving block (41), a driving cavity (42), a separation rod (43) and a separation cylinder (44), the driving cavity (42) being arranged in the side wall of the baffle ring (2), the driving block (41) being slidingly arranged in the driving cavity (42), the bearing hopper (3) driving the driving block (41) to slide into the driving cavity (42), the separation cylinder (44) being arranged outside the baffle ring (2) and being communicated with the driving cavity (42), one end of the separation rod (43) being slidingly arranged in the separation cylinder (44), the other end of the separation rod (43) being arranged on the conveying assembly (1), and the separation rod (43) being used for driving the conveying assembly (1) to slide. The conveying assembly (1) comprises a support frame (11), a plurality of auxiliary rollers (12), a first conveying belt (13), a second conveying belt (14), a first driving device (15) and a second driving device (16), the plurality of auxiliary rollers (12) are rotationally arranged at the two sides of the support frame (11) respectively, the first driving device (15) and the second driving device (16) are slidingly arranged at the middle part of the support frame (11), the first conveying belt (13) is sleeved on one side of the first driving device (15) and the plurality of auxiliary rollers (12), and the second conveying belt (14) is sleeved on the other side of the second driving device (16) and the plurality of auxiliary rollers (12). The first driving device (15) comprises a first driving roller (151) and a first motor (152), the working end of the first motor (152) is arranged on the first driving roller (151), the first driving roller (151) and the first motor (152) have the freedom of sliding along the longitudinal direction of the support frame (11), and the base of the first motor (152) is arranged on the other end of the separation rod (43). A packaging mechanism (7) is arranged below the bearing hopper (3).

2. The automatic packing machine for brake spring according to claim 1, characterized in that: A plurality of tension springs (32) are arranged between the bearing hopper (3) and the baffle ring (2), one end of the tension spring (32) is fixedly arranged on the bearing hopper (3), the other end of the tension spring (32) is fixedly arranged on the baffle ring (2), and a plurality of jacks (21) are arranged at the bottom of the baffle ring (2).

3. The automatic packing machine for brake spring according to claim 1, characterized in that: The side of the bearing bucket (3) is provided with a plurality of groups of switch structures (5), the switch structure (5) includes a pressing plate (51), a reset spring (52), a rack (53) and a gear (54), the gear (54) is rotationally arranged at the bottom of the bearing bucket (3), one end of the material baffle (31) is arranged on the gear (54); the rack (53) is slidingly arranged on the side of the bearing bucket (3), the rack (53) is in meshing transmission with the gear (54); the pressing plate (51) is fixedly arranged on the top of the rack (53); one end of the reset spring (52) is fixedly arranged on the pressing plate (51), and the other end of the reset spring (52) is fixedly arranged on the bearing bucket (3).

4. The automatic packing machine for brake spring according to claim 1, characterized in that: The side of the material baffle (31) is provided with a stopping assembly (6), the stopping assembly (6) includes a sliding block (61) and a stopping rod (62); the sliding block (61) is slidingly arranged on the outside of the material baffle (31); one end of the stopping rod (62) is rotationally arranged on the sliding block (61), and the other end of the stopping rod (62) is rotationally arranged on the conveying assembly (1).

5. The automatic packing machine for brake washers as claimed in claim 4, wherein: The second driving device (16) includes a second driving roller (161) and a second motor (162); the working end of the second motor (162) is arranged on the second driving roller (161), and the second driving roller (161) and the second motor (162) have a freedom degree of sliding along the support frame (11) in the longitudinal direction; the base of the second motor (162) is rotationally arranged on the other end of the stopping rod (62).

6. The automatic packing machine for brake washers as claimed in claim 1 wherein: The packaging mechanism (7) includes a conveying assembly (71), a cutting and sealing assembly (72), a bag making bucket (73), a plurality of first push rods (74) and a mounting frame (75); the conveying assembly (71) is arranged at one end of the mounting frame (75); the bag making bucket (73) is arranged on the mounting frame (75) through a plurality of first push rods (74), and the bag making bucket (73) is located at the other end of the mounting frame (75); a plurality of first push rods (74) are arranged on both sides of the bag making bucket (73) respectively, the base of the first push rod (74) is arranged on the mounting frame (75), and the working end of the first push rod (74) is arranged on the bag making bucket (73); a supporting claw (76) is arranged on the outlet end of the bag making bucket (73); the cutting and sealing assembly (72) is arranged on the mounting frame (75) below the bag making bucket (73).

7. The automatic packing machine for brake washers as claimed in claim 6, wherein: The conveying assembly (71) includes a traction roller group (711), a driving roller group (712) and a limiting block (713); the traction roller group (711) is arranged at one end of the mounting frame (75); the driving roller group (712) is arranged on the mounting frame (75) on one side of the traction roller group (711); and the limiting block (713) is arranged on the mounting frame (75) and located above the driving roller group (712).

8. The automatic packing machine for brake washers as claimed in claim 6 wherein: The sealing and cutting assembly (72) comprises multiple sets of second push rods (721), matching blocks (722) and heat sealing knives (723); the bases of the multiple sets of first push rods (74) are arranged on the mounting frame (75), the heat sealing knives (723) are arranged on the working ends of the second push rods (721), and the heat sealing knives (723) are slidingly arranged on the mounting frame (75); and the matching blocks (722) are arranged on the mounting frame (75) between the multiple sets of second push rods (721).

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