Holding box forming machine

Abstract

The utility model relates to the technical field of paper box processing, in particular to a box-holding forming machine which comprises a rack, and a clamping and lifting driving mechanism used for clamping a top and bottom cover and lifting the top and bottom cover is arranged on the rack. The rack is sequentially provided with an automatic feeding mechanism used for feeding heaven and earth covers to the clamping and lifting driving mechanism and a first forming mechanism used for attaching packaging surface paper to the left side plate and the right side plate from top to bottom along the driving path of the clamping and lifting driving mechanism. According to the machine, manual operation is replaced by the machine to wrap the top and bottom cover with the packaging surface paper, manual operation is conveniently reduced, the labor cost of an enterprise is reduced, the fool-proof performance of the machine is high, errors are reduced, the wrapping quality of the packaging surface paper is guaranteed, and the packaging surface paper can be pasted on the top and bottom cover. In addition, the machine has high fatigue resistance and high continuous working capacity, and the efficiency is high in large-batch production.

Description

Technical Field

[0001] This application relates to the technical field of paper box processing, and more specifically, to a box forming machine. Background Technology

[0002] A hinged lid is a common type of lid for packaging boxes, with square hinged lids being the most common. (See reference...) Figure 1 The square top and bottom cover 100 typically includes a base plate and four side plates arranged in a square shape on one side of the base plate. The four side plates are the front side plate 101, the rear side plate 102, the left side plate 103, and the right side plate 104. In order to make the top and bottom cover 100 more aesthetically pleasing, the top and bottom cover 100 is also covered with packaging paper 200.

[0003] The packaging sheet 200 typically includes a base sheet 201 that matches the base plate, and front side sheets 202, rear side sheets 203, left side sheets 204, and right side sheets 205 formed on the four sides of the base sheet 201 to respectively match the front side sheet 101, rear side sheet 102, left side sheet 103, and right side sheet 104. Furthermore, to cover the inner surfaces of the front side sheet 101, rear side sheet 102, left side sheet 103, and right side sheet 104, the front side sheets 202, rear side sheets 203, left side sheets 204, and right side sheets 205 are provided on the side furthest from the base sheet 201. The front panel 202, rear panel 203, left panel 204 and right panel 205 are respectively marked as front inward panel 2021, rear inward panel 2031, left inward panel 2041 and right inward panel 2051. In order to cover the four corners of the perimeter wall of the top and bottom cover 100, right front corner protector 2052 and right rear corner protector 2053 are respectively provided on the opposite sides of the right panel 205, and left front corner protector 2042 and left rear corner protector 2043 are respectively provided on the opposite sides of the left panel 204.

[0004] The bonding method between the top and bottom cover 100 and the packaging paper 200 is as follows: Adhesive is applied to one side of the packaging paper 200; the bottom sheet 201 is attached to the outer side of the bottom plate; the right side sheet 205 is attached to the outer side of the right side plate 104; the left side sheet 204 is attached to the outer side of the left side plate 103; the right front corner piece 2052 is attached to the outer side of the front side plate 101; the right rear corner piece 2053 is attached to the outer side of the rear side plate 102; and the left front corner piece 2042 is attached to the outer side of the front side plate 101. On the outer side, the left rear corner piece 2043 is attached to the outer side of the rear side panel 102, the front side piece 202 is attached to the outer side of the front side panel 101, the rear side piece 203 is attached to the outer side of the rear side panel 102, the front inward flap piece 2021 is attached to the inner side of the front side panel 101, the rear inward flap piece 2031 is attached to the inner side of the rear side panel 102, the left inward flap piece 2041 is attached to the inner side of the left side panel 103, and the right inward flap piece 2051 is attached to the inner side of the right side panel 104.

[0005] In related technologies, the bonding of the top and bottom cover 100 and the packaging paper 200 is done by manual application. This method relies on manual operation and requires a large number of workers in mass production, resulting in high labor costs for enterprises. Furthermore, manual operation has poor error prevention and is prone to mistakes, leading to poor bonding quality. In addition, manual operation is prone to fatigue, resulting in low production efficiency. Utility Model Content

[0006] In order to solve the problems in related technologies, the bonding of the top and bottom covers and the packaging paper is done manually, which is labor-intensive, prone to errors resulting in poor bonding quality, and easy to cause fatigue and low production efficiency, this application provides a box forming machine.

[0007] A box forming machine includes a frame, on which a clamping and lifting drive mechanism is provided for clamping and lifting the top and bottom lids. Along the drive path of the clamping and lifting drive mechanism, the frame is provided with, from top to bottom, an automatic feeding mechanism for feeding the top and bottom lids onto the clamping and lifting drive mechanism, a first forming mechanism for attaching the packaging paper to the left and right side plates, and a second forming mechanism for attaching the packaging paper to the front and right side plates of the top and bottom lids.

[0008] Preferably, the clamping and lifting drive mechanism includes an upper mold lifting drive assembly and a lower mold lifting drive assembly. The lower mold lifting drive assembly is disposed at the bottom of the frame and is driven to a lower mold for supporting the top and bottom covers with their openings facing upwards. The upper mold lifting drive assembly is disposed at the top of the frame and is driven to a higher mold with a size and shape matching the internal shape and size of the top and bottom covers. The upper mold and the lower mold are aligned vertically. The upper mold is driven to lift and lower through the upper mold lifting drive assembly, and the lower mold is driven to lift and lower through the lower mold lifting drive assembly.

[0009] Preferably, the upper mold lifting drive assembly includes a motor mounting base, a first servo motor, a movable plate, a second servo motor, a first lead screw, and a pull rail. The motor mounting base is fixed to the top of the frame. The movable plate is vertically connected to the motor mounting base. The first servo motor is fixed to the motor mounting base and located on the back of the movable plate. A rack extending along the length of the movable plate is provided on the back of the movable plate. The drive shaft of the first servo motor is provided with a gear that meshes with the rack. The second servo motor is fixedly installed on the front of the movable plate with its drive shaft facing downwards. The first lead screw is vertically arranged and its top end is connected to the drive shaft of the second servo motor. A first nut sleeve is fitted onto the body of the first lead screw. The pull rail is vertically arranged and its top end is fixedly connected to the first nut sleeve. The bottom end of the pull rail is fixedly connected to the upper mold.

[0010] Preferably, the lower mold lifting drive assembly includes a lifting cylinder and a cylinder mounting base. The cylinder mounting base is fixed to the bottom of the frame. The lifting cylinder is vertically arranged and fixedly connected to the cylinder mounting base, with the telescopic shaft of the lifting cylinder facing upward. The lower mold is connected to the top end of the telescopic shaft of the lifting cylinder.

[0011] Preferably, the automatic feeding mechanism includes two first mounting plates arranged laterally on opposite sides of the upper mold lifting drive assembly, and a first transverse drive assembly for connecting the two first mounting plates and driving them to move away from or towards each other. Each of the two first mounting plates has a first slide rail extending along its length on its facing side. A first slider is slidably mounted on the first slide rail, and the first slider is connected to a second mounting plate. A second transverse drive assembly is mounted on the first mounting plate to drive the second mounting plate to reciprocate along the length of the first slide rail, with the second mounting plate moving away from the first mounting plate. A second vertical slide rail is provided on one side of the first mounting plate. A second slider is slidably mounted on the second slide rail. The second slider is connected to a third mounting plate. A mounting plate lifting drive assembly is also provided on the second mounting plate to drive the third mounting plate to rise and fall. A third slide rail is provided on the side of the third mounting plate away from the second mounting plate. The third slide rail is parallel to the first slide rail. Two third sliders are slidably mounted on the third slide rail. Each of the two third sliders is connected to a clamping block. A third transverse drive assembly is provided on the third mounting plate to drive the two third sliders to move away from each other or closer together.

[0012] Preferably, the first transverse drive assembly includes a second lead screw rotatably mounted on the frame and a third servo motor for driving the second lead screw to rotate. The second lead screw is a bidirectional lead screw, and each of the two reverse threaded sections of the second lead screw is threaded with a second nut sleeve. One second nut sleeve is connected and fixed to one of the first mounting plates, and the other second nut sleeve is connected and fixed to another of the first mounting plates.

[0013] Preferably, the second lateral movement drive assembly includes two first pulleys rotatably disposed at both ends of the first mounting plate, a first transmission belt sleeved on the two first pulleys, and a fourth servo motor fixed on the first mounting plate for driving the first pulleys to rotate. The first slider is connected to the upper or lower section of the first transmission belt. The second lateral movement drive assembly includes a first cylinder vertically disposed on the second mounting plate. The drive shaft of the first cylinder is connected to a connecting block, and the connecting block is fixedly connected to the third mounting plate. The third lateral movement drive assembly includes two second pulleys rotatably disposed at both ends of the third mounting plate, a second transmission belt sleeved on the two second pulleys, and a fifth servo motor fixed on the third mounting plate for driving the second pulleys to rotate. The third slide rail is located in the middle of the second transmission belt, and the two third sliders are fixedly connected to the upper and lower sections of the second transmission belt, respectively.

[0014] Preferably, the first forming mechanism includes two fourth mounting plates arranged laterally on opposite sides of the lifting clamping mechanism, and a fourth lateral movement drive assembly for connecting the two fourth mounting plates and driving them to move away from or towards each other. A second cylinder, a third cylinder, and a fourth cylinder are arranged from top to bottom on each of the two fourth mounting plates, and the second, third, and fourth cylinders are all placed laterally and perpendicular to the fourth mounting plates. The telescopic shaft of the second cylinder is connected to a first U-shaped frame, and a first rotating roller is rotatably connected to the first U-shaped frame. The telescopic shaft of the third cylinder is connected to a first bending plate. The cylinder's telescopic shaft is connected to a first pressure plate, and the first U-shaped frame, the first bending piece, and the first pressure plate are all located between the two fourth mounting plates. The bottom sides of the two fourth mounting plates are also provided with fourth slide rails extending along their length. Two fourth sliders are slidably mounted on the fourth slide rails, and the fourth slide rails are evenly arranged with a number of threaded holes along their length. The fourth sliders are threadedly connected to bolts and are fixed to the fourth slide rails by the bolts being threaded into the threaded holes. A fifth cylinder is fixed on each of the two fourth sliders. A pressure block is provided on the telescopic shaft of the fifth cylinder, and the pressure block faces between the two fourth mounting plates.

[0015] Preferably, the second forming mechanism includes two fifth mounting plates arranged laterally on opposite sides of the lifting clamping mechanism, and a fifth transverse drive assembly for connecting the two fifth mounting plates and driving them to move away from or towards each other. The fifth mounting plates are perpendicular to the fourth mounting plates. A sixth cylinder, a seventh cylinder, and an eighth cylinder are arranged from top to bottom on both fifth mounting plates. The sixth, seventh, and eighth cylinders are all arranged laterally and perpendicular to the fifth mounting plates. A second U-shaped frame is connected to the telescopic shaft of the sixth cylinder. A second roller is rotatably connected to the second U-shaped frame. A second bending piece is connected to the telescopic shaft of the seventh cylinder. A second pressure plate is connected to the telescopic shaft of the eighth cylinder. The second U-shaped frame, the second bending piece, and the second pressure plate are all located between the two fourth mounting plates.

[0016] Preferably, the fourth lateral movement drive assembly includes a third lead screw rotatably mounted on the frame and a sixth servo motor for driving the third lead screw to rotate. The third lead screw is a bidirectional lead screw, and both reverse threaded portions of the third lead screw are threadedly connected to a third nut sleeve. One third nut sleeve is fixedly connected to one of the fourth mounting plates, and the other third nut sleeve is fixedly connected to another of the fourth mounting plates. The fifth lateral movement drive assembly includes a fourth lead screw rotatably mounted on the frame and a seventh servo motor for driving the fourth lead screw to rotate. The fourth lead screw is a bidirectional lead screw, and both reverse threaded portions of the fourth lead screw are threadedly connected to a fourth nut sleeve. One fourth nut sleeve is fixedly connected to one of the fifth mounting plates, and the other fourth nut sleeve is fixedly connected to another of the fifth mounting plates.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. The bottom plate of the top and bottom cover is first pre-attached to the bottom sheet of the packaging paper. The pre-attached top and bottom cover is then fed to the clamping and lifting drive mechanism by the automatic feeding mechanism. This facilitates the automatic flow of products on the production line, improves the automation process, reduces manual feeding, and increases production efficiency. The lifting drive mechanism drives the pre-attached top and bottom cover to move to the working positions of the first forming mechanism and the second forming mechanism. The first forming mechanism attaches the packaging paper to the left and right side plates, and the second forming mechanism attaches the packaging paper to the top and bottom cover, completely covering the top and bottom cover. The machine replaces manual operation in covering the top and bottom cover, which reduces manual operation and lowers labor costs. The machine is also highly error-proof, reducing mistakes and ensuring the quality of packaging paper application. The machine also has high fatigue resistance and strong continuous working capacity, resulting in high efficiency in mass production.

[0019] 2. The upper mold is lifted and lowered by the upper mold lifting drive assembly, and the lower mold is lifted and lowered by the lower mold lifting drive assembly. This allows the upper and lower molds to clamp and fix the top and bottom covers. The upper and lower molds are also lifted and lowered synchronously by the upper and lower mold lifting drive assemblies, which in turn lifts and lowers the top and bottom covers. The upper mold lifting drive assembly uses a first servo motor in conjunction with a gear and rack to achieve the first stage of displacement. The second stage of displacement is achieved by a second servo motor in conjunction with a lead screw and nut. The displacement stroke is long and the displacement accuracy is high. Furthermore, the servo drive facilitates automated control through a control program. The lower mold is lifted and lowered by a telescopic cylinder. The telescopic cylinder uses an electronically controlled valve to control the intake and exhaust of air to adjust the stroke, which facilitates coordination with the upper mold lifting drive assembly. This method is also relatively low in cost.

[0020] 3. The first forming mechanism uses two first rotating rollers to roll up the left and right sides of the packaging paper from the bottom of the top and bottom cover, respectively, during the process of the top and bottom cover being driven down by the clamping and lifting drive mechanism. This rolls the left and right sides of the packaging paper onto the outer surfaces of the left and right sides of the top and bottom cover, respectively. Then, the clamping and lifting drive mechanism drives the top surface of the top and bottom cover to the position of the alignment bending piece, while the side plates of the top and bottom cover align with the pressure plate. A cylinder drives the two pressure plates to move closer together to fix the top and bottom cover. The upper mold lifting drive assembly drives the upper mold to rise, causing the upper mold to detach from the top and bottom cover to avoid collision. A cylinder drives the bending piece, causing the two first bending pieces to move towards each other, so that the two first bending pieces respectively press against the left inner flap at the top of the left side piece and the right inner flap at the top of the right side piece. The right inner flap is bent at 90° and attached to the upper edge of the left and right sides of the top and bottom plates respectively. The upper mold is driven to descend by the upper mold lifting drive assembly, so that the upper mold presses the left and right inner flaps against the inner sides of the left and right sides of the top and bottom plates respectively. The second forming mechanism attaches the front and rear side pieces of the packaging paper to the outer sides of the front and rear sides of the top and bottom plates respectively, and attaches the front and rear inner flaps of the packaging paper to the inner sides of the front and rear sides of the top and bottom plates respectively. Its structure and principle are the same as the first forming mechanism. The first forming mechanism attaches the right front corner piece and right rear corner piece of the packaging paper to the outer sides of the front and rear sides of the top and bottom plates respectively, and attaches the left front corner piece and left rear corner piece to the outer sides of the front and rear sides of the top and bottom plates respectively. The corner wrapping is achieved by the corresponding pressing and attaching of the pressure blocks driven by the four fifth cylinders on the bottom sides of the two fourth mounting plates.

[0021] 4. The first transverse drive assembly drives the two first mounting plates to move away from each other or closer together. The fourth transverse drive assembly drives the two fourth mounting plates to move away from each other or closer together. The fifth transverse drive assembly drives the two fifth mounting plates to move away from each other or closer together. This achieves the matching of top and bottom covers of different sizes for material feeding and covering molding operations. All three transverse drive assemblies are formed by a combination of servo motors, lead screws and nut sleeves, which makes the mounting plate displacement accuracy high and facilitates automated coordination through molding control. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the top and bottom cover and the packaging paper in the background art.

[0023] Figure 2 This is a schematic diagram of the overall structure of a box forming machine according to this embodiment.

[0024] Figure 3 This is a schematic diagram of the clamping and lifting drive mechanism in this embodiment.

[0025] Figure 4 This is a schematic diagram of the automatic feeding mechanism in this embodiment.

[0026] Figure 5 This is a schematic diagram of the first molding mechanism in this embodiment.

[0027] Figure 6 This is a schematic diagram of the structure of the second molding mechanism implemented in this embodiment.

[0028] Reference numerals: 100, Top and bottom covers; 101, Front side panel; 102, Rear side panel; 103, Left side panel; 104, Right side panel; 200, Packaging paper; 201, Base sheet; 202, Front side panel; 2021, Front inward flap; 203, Rear side panel; 2031, Rear inward flap; 204, Left side panel; 2041, Left inward flap; 2042, Left front corner protector; 2043, Left rear corner protector; 205, Right side panel; 2051, Right inward flap; 2052, Right front corner protector; 2053, Right rear corner protector; 1, Frame; 11, Support frame; 12, Bottom support plate; 13, First fixing plate; 14, Second fixing plate; 15, Top support plate; 16, Third fixing plate 2. Clamping and lifting drive mechanism; 21. Upper mold lifting drive assembly; 211. Motor mounting base; 212. First servo motor; 2121. Gear; 213. Movable plate; 2131. Rack; 2132. Bearing seat; 214. Second servo motor; 215. First lead screw; 2151. First nut sleeve; 216. Pull rail; 22. Lower mold lifting drive assembly; 221. Lifting cylinder; 222. Cylinder mounting base; 23. Upper mold; 24. Lower mold; 3. Automatic feeding mechanism; 31. First mounting plate; 311. First slide rail; 312. First slider; 313. Second transverse drive assembly; 3131. First pulley; 3132. First transmission belt; 31 33. Fourth servo motor; 32. First transverse drive assembly; 321. Second lead screw; 322. Third servo motor; 323. Second nut sleeve; 33. Second mounting plate; 331. Second slide rail; 332. Second slider; 333. Mounting plate lifting drive assembly; 3331. First cylinder; 3332. Connecting block; 34. Third mounting plate; 341. Third slide rail; 342. Third slider; 343. Third transverse drive assembly; 3431. Second pulley; 3432. Second transmission belt; 3433. Fifth servo motor; 35. Clamping block; 4. First forming mechanism; 41. Fourth mounting plate; 42. Fourth transverse drive assembly; 421. Third lead screw; 422. Sixth servo motor; 423. Third nut sleeve; 43. Second cylinder; 431. First U-shaped frame; 432. First rotating roller; 44. Third cylinder; 441. First bending piece; 45. Fourth cylinder; 451. First pressure plate; 46. Fourth slide rail; 47. Fourth slider; 48. Fifth cylinder; 49. Pressure block; 5. Second forming mechanism; 51. Fifth mounting plate; 52. Fifth transverse drive assembly; 521. Fourth lead screw; 522. Seventh servo motor; 523. Fourth nut sleeve; 53. Sixth cylinder; 531. Second U-shaped frame; 532. Second rotating roller; 54. Seventh cylinder; 541. Second bending piece; 55. Eighth cylinder; 56. Second pressure plate. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Reference Figure 2 A box forming machine includes a frame 1, on which a clamping and lifting drive mechanism 2 is provided for clamping and lifting a top and bottom cover 100. Along the drive path of the clamping and lifting drive mechanism 2, the frame 1 is sequentially equipped with an automatic feeding mechanism 3 for loading the top and bottom cover 100 onto the clamping and lifting drive mechanism 2; a first forming mechanism 4 for attaching packaging paper 200 to the left side plate 103 and the right side plate 104; and a second forming mechanism 5 for attaching packaging paper 200 to the front side plate 101 and the right side plate 104 of the top and bottom cover 100. The bottom plate of the top and bottom cover 100 is pre-attached to the bottom sheet 201 of the packaging paper 200. The automatic feeding mechanism 3 then loads the pre-attached top and bottom cover 100 onto the clamping and lifting drive mechanism 2. This facilitates the automatic flow of products on the production line and improves production efficiency. The automated process reduces manual material handling and improves production efficiency. A lifting drive mechanism moves the top and bottom covers 100 of the pre-applied packaging paper 200 to the first forming mechanism 4 and the second forming mechanism 5. The first forming mechanism 4 applies the packaging paper 200 to the left side plate 103 and the right side plate 104, and the second forming mechanism 5 applies it to the top and bottom covers 100, completely covering the packaging paper 200. This machine replaces manual labor in covering the top and bottom covers 100, reducing manual operations and labor costs. The machine also boasts high error prevention, minimizing mistakes and ensuring the quality of the packaging paper application. Furthermore, the machine has high fatigue resistance and strong continuous working capacity, resulting in high efficiency in mass production.

[0031] Reference Figure 2 The frame 1 includes a bottom support frame 11, and a bottom support plate 12 is provided on the top of the bottom support frame 11. Two first fixing plates 13 are arranged at intervals on opposite sides of the top surface of the bottom support plate 12. Two second fixing plates 14 are arranged at intervals on the other opposite sides of the top surface of the bottom support plate 12. The height of the second fixing plates 14 is lower than the height of the first fixing plates 13. The two first fixing plates 13 on one side of the bottom support plate 12 are aligned with the two first fixing plates 13 on the opposite side, and the top ends of the two aligned first fixing plates 13 are connected to a top support plate 15.

[0032] Reference Figure 2 and Figure 3 The clamping and lifting drive mechanism 2 includes an upper mold lifting drive assembly 21 and a lower mold lifting drive assembly 22. The upper mold lifting drive assembly 21 is located at the top of the frame 1 and is driven by an upper mold 23 whose size and shape match the internal shape and size of the top and bottom cover 100. Specifically, the upper mold 23 drive assembly includes a motor mounting base 211, a first servo motor 212, a movable plate 213, a second servo motor 214, a first lead screw 215, and a pull rail 216. The motor mounting base 211 is fixed to the top surface of a top support plate 15. The motor mounting base 211 is provided with a sliding groove and is vertically arranged in the sliding groove to mount the motor. The mounting base 211 is movably connected. A first servo motor 212 is fixed to the mounting base and located on the back of the movable plate 213. A rack 2131 (not shown in the figure) extending along the length of the movable plate 213 is provided on the back of the movable plate 213. The drive shaft of the first servo motor 212 is equipped with a gear 2121 that meshes with the rack 2131. The first servo motor 212 drives the gear 2121 to rotate in both directions, thereby driving the rack 2131 to rise and fall, thus raising and lowering the movable plate 213. A second servo motor 214 is fixedly mounted on the front of the movable plate 213 with its drive shaft facing downwards. The first lead screw... The first lead screw 215 is vertically arranged, and a bearing seat 2132 is provided at the bottom of the front of the movable plate 213. The bottom end of the first lead screw 215 is rotatably connected to the bearing seat 2132 via a bearing. The top end of the first lead screw 215 is connected to the drive shaft of the second servo motor 214. The first lead screw 215 is a one-way threaded lead screw. The body of the first lead screw 215 is provided with a first nut sleeve 2151. There are two pull rails 216, which are vertically arranged and respectively arranged on opposite sides of the first lead screw 215. The top ends of the two pull rails 216 are connected and fixed to the first nut sleeve 2151. The bottom ends of the two pull rails 216 are connected to the upper mold 23. The upper mold 23 is fixed in place. The first nut sleeve 2151 is driven to rise and fall by the forward and reverse rotation of the lead screw driven by the second servo motor 214, which in turn drives the pull rail 216 and the upper mold 23 to rise and fall. The combination of gear 2121 and rack 2131 driven by the first servo motor 212 forms the first lifting stroke of the upper mold 23. The combination of the first lead screw 215 and the first nut sleeve 2151 driven by the second servo motor 214 forms the second lifting stroke of the upper mold 23. The upper mold 23 has two lifting strokes, which makes its stroke displacement relatively long. Each stroke is driven separately, which makes the movement efficiency high. In addition, the lead screw drive makes the movement of the upper mold 23 precise.

[0033] Reference Figure 2 and Figure 3The lower mold lifting drive assembly 22 is located at the bottom of the frame 1, and its drive connection is used to support the lower mold 24, which is placed with the opening of the top and bottom cover 100 facing upwards. The size of the lower mold 24 is smaller than the size of the bottom plate of the top and bottom cover 100. The lower mold lifting drive assembly 22 includes a lifting cylinder 221 and a cylinder mounting base 222. The cylinder mounting base 222 is fixed on the bottom support plate 12. The lifting cylinder 221 is vertically arranged on the cylinder mounting base 222 and its extension axis is arranged upwards. The extension axis of the lifting cylinder 221 is connected and fixed to the lower mold 24, and the upper mold 23 and the lower mold 24 are vertically aligned. Position setting: The lifting cylinder 221 controls the intake and exhaust through an electronically controlled valve to adjust the movement of the telescopic shaft, thereby controlling the movement stroke of the lower mold 24 and the upper mold 23 to move in tandem. The automatic loading mechanism loads the top and bottom covers 100, which are located outside the frame 1, onto the lower mold. The upper mold 23 lifting drive mechanism drives the upper mold 23 to descend and enter the groove of the top and bottom covers 100 to clamp the top and bottom covers 100. Furthermore, the upper mold lifting drive assembly 21 and the lower mold drive assembly drive the upper mold 23 and the lower mold to lift and lower synchronously, thereby driving the top and bottom covers 100 to lift and lower.

[0034] Reference Figure 2 and Figure 4The automatic feeding mechanism 3 includes two first mounting plates 31 arranged horizontally on opposite sides of a movable plate 213, and a first transverse drive assembly 32 for connecting the two first mounting plates 31 and driving them to move away from or towards each other. Both first mounting plates 31 are located above a second fixed plate 14, with both ends extending horizontally through opposite sides of the frame 1. Each of the two first mounting plates 31 has a first slide rail 311 extending along its length on its facing side, and a first slider 312 slidably mounted on the first slide rail 311. The first slider 312 is connected to a second mounting plate 33, and each first mounting plate 31 is also equipped with a second transverse drive assembly 313 for driving the second mounting plate 33 to reciprocate along the length of the first slide rail 311. A second vertical slide rail 331 is provided on the side of the second mounting plate 33 away from the first mounting plate 31. A second slider 332 is slidably mounted on the second slide rail 331. The second slider 332 is connected to a third mounting plate 34. A mounting plate lifting drive assembly 333 is also provided on the second mounting plate 33 to drive the third mounting plate 34 to rise and fall. A third slide rail 341 is provided on the side of the third mounting plate 34 away from the second mounting plate 33. The third slide rail 341 is parallel to the first slide rail 311. Two third sliders 342 are slidably mounted on the third slide rail 341. Each of the two third sliders 342 is connected to a clamping block 35. A third transverse drive assembly 343 is provided on the third mounting plate 34 to drive the two third sliders 342 to move away from or towards each other. In the structure of the above-mentioned automatic feeding component, the bottom sheet 201 of the packaging paper 200 is first pre-attached to the bottom plate of the top and bottom cover 100. By placing the top and bottom cover 100 with the pre-attached packaging paper 200 on one side outside the frame 1, the first transverse drive component 32 drives the two first mounting plates 31 to move towards each other so that the distance between the two first mounting plates 31 matches the size of the top and bottom cover 100. Then, the second transverse drive component 313 drives the second mounting plate 33 to move out of the frame 1, thereby moving the third mounting plate 34 out of the frame 1, so that the two third mounting plates 34 are respectively aligned with the front side plate 101 and the rear side plate 102 of the top and bottom cover 100, and the two clamping blocks on the third mounting plate 34 are engaged. The clamping blocks 35 are aligned with the left side plate 103 and right side plate 104 of the top and bottom cover 100. The two clamping blocks 35 are brought closer together by the third transverse drive assembly 343 to clamp and fix the top and bottom cover 100. The second mounting plate 33 is moved to the other side of the frame 1 by the second transverse drive assembly 313 so that the top and bottom cover 100 is grabbed and moved above the alignment lower mold. The third mounting plate 34 is lowered by the mounting plate lifting drive assembly 333 to lower the clamping blocks 35 and place the top and bottom cover 100 on the lower mold. The clamping blocks 35 are released by the third transverse drive assembly 343 to move away from each other, so that the top and bottom cover 100 is loaded into the clamping lifting drive mechanism 2.

[0035] Reference Figure 2 and Figure 4 Furthermore, the first transverse drive assembly 32 includes a second lead screw 321 rotatably mounted on the frame 1 and a third servo motor 322 for driving the second lead screw 321 to rotate. The second lead screw 321 is a bidirectional lead screw, and the two ends of the second lead screw 321 are tightly connected to second nut sleeves 323 by reverse threads. One second nut sleeve 323 is connected and fixed to one first mounting plate 31, and the other second nut sleeve 323 is connected and fixed to another first mounting plate 31. There are two second lead screws 321, and the two second lead screws 321 are respectively positioned at the positions of two sets of first fixing plates 13, and the two ends of the second lead screw 321 are rotatably connected to the two first fixing plates 13 respectively. Next, two first fixing plates 13 located on the same side of the base plate are connected to a third fixing plate 16. The third servo motor 322 is fixed on the third fixing plate 16, and the drive end of the third servo motor 322 is provided with a belt drive structure. The two second lead screws 321 are linked through the belt drive structure. The third servo motor 322 drives the belt drive structure to synchronously drive the two second lead screws 321 to rotate. The rotation of the second lead screws 321 drives the second nut sleeves 323 on them to move away from or towards each other, thereby driving the two first mounting plates 31 to move closer or further apart. The belt drive structure and its combination with the lead screws are existing technologies and will not be described in detail in this application.

[0036] Reference Figure 2 and Figure 4 The second transverse drive assembly 313 includes a first pulley 3131 rotatably disposed at both ends of the first mounting plate 31, a first transmission belt 3132 sleeved on the first pulley 3131, and a fourth servo motor 3133 fixed on the first mounting plate 31 for driving the first pulley 3131 to rotate. The first slider 312 is connected to the upper or lower section of the first transmission belt 3132. The first pulley 3131 is driven to rotate in both directions by the fourth servo motor 3133, thereby driving the second transmission belt 3432 to perform forward and reverse transmission, thereby driving the first slider 312 to reciprocate along the length direction of the first slide rail 311, and thus driving the second mounting plate 33 to reciprocate.

[0037] Reference Figure 2 and Figure 4 The mounting plate lifting drive assembly 333 includes a first cylinder 3331 vertically mounted on the mounting plate. The drive shaft of the first cylinder 3331 is connected to a connecting block 3332. The connecting block 3332 is connected and fixed to the third mounting plate 34. The first cylinder 3331 is vertically mounted so that its telescopic shaft can extend and retract, thereby driving the connecting block 3332 to rise and fall, which in turn drives the third mounting plate 34 to rise and fall.

[0038] Reference Figure 2 and Figure 4The third transverse drive assembly 343 includes two second pulleys 3431 rotatably mounted at both ends of the third mounting plate 34, a second transmission belt 3432 sleeved on the two second pulleys 3431, and a fifth servo motor 3433 fixed on the first mounting plate 31 for driving the second pulleys 3431 to rotate. The third slide rail 341 is located in the middle of the second transmission belt, and the two third sliders 342 are respectively connected and fixed to the upper and lower sections of the second transmission belt. The upper and lower sections of the transmission belt move in opposite directions. The second transmission belt is driven to rotate in both directions by the fifth servo motor 3433 driving one first pulley 3131 to rotate in both directions, thereby driving the two third sliders 342 to move away from or towards each other.

[0039] Reference Figure 2 , Figure 5 and Figure 6The first forming mechanism 4 includes two fourth mounting plates 41 arranged laterally on opposite sides of the lifting and clamping mechanism, and a fourth lateral movement drive assembly 42 for connecting the two fourth mounting plates 41 and driving them to move away from or towards each other. The fourth mounting plates 41 are parallel to the first mounting plate 31. A second cylinder 43, a third cylinder 44, and a fourth cylinder 45 are arranged from top to bottom on each of the two fourth mounting plates 41. The second cylinder 43, third cylinder 44, and fourth cylinder 45 are all arranged laterally and perpendicular to the fourth mounting plates 41. The telescopic shaft of the second cylinder 43 is connected to a first U-shaped frame 431, and a first rotating roller 432 is rotatably connected to the first U-shaped frame 431. The telescopic shaft of the third cylinder 44... The shaft is connected to the first bending piece, and the telescopic shaft of the fourth cylinder 45 is connected to the first pressure plate 451. The first U-shaped frame 431, the first bending piece, and the first pressure plate 451 are all located between the two fourth mounting plates 41. The bottom sides of the two fourth mounting plates 41 are also provided with fourth slide rails 46 extending along their length. Two fourth sliders 47 are slidably arranged on the fourth slide rails 46, and the fourth slide rails 46 are evenly arranged with a number of threaded holes along their length. The fourth sliders 47 are threaded with bolts and are fixed to the fourth slide rails 46 by the bolts threaded into the threaded holes. A fifth cylinder 48 is fixed on each of the two fourth sliders 47. A pressure block 49 is provided on the telescopic shaft of the fifth cylinder 48, and the pressure block 49 faces between the two fourth mounting plates 41. The second forming mechanism 5 includes two fifth mounting plates 51 arranged horizontally on opposite sides of the lifting clamping mechanism, and a fifth transverse drive assembly 52 for connecting the two fifth mounting plates 51 and driving them to move away from or towards each other. The fifth mounting plates 51 are perpendicular to the fourth mounting plates 41. A sixth cylinder 53, a seventh cylinder 54, and an eighth cylinder 55 are arranged from top to bottom on both fifth mounting plates 51. The sixth cylinder 53, the seventh cylinder 54, and the eighth cylinder 55 are all arranged horizontally and perpendicular to the fifth mounting plates 51. A second U-shaped frame 531 is connected to the telescopic shaft of the sixth cylinder 53. A second roller 532 is rotatably connected to the second U-shaped frame 531. A second bending piece 541 is connected to the telescopic shaft of the seventh cylinder. A second pressure plate 56 is connected to the telescopic shaft of the eighth cylinder 55. The second U-shaped frame 531, the second bending piece 541, and the second pressure plate 56 are all located between the two fourth mounting plates 41.

[0040] Reference Figure 5 and Figure 6The operating principle of the first forming mechanism 4 is as follows: During the process of the top and bottom cover 100, pre-attached with packaging paper 200, being driven downwards by the clamping and lifting drive mechanism 2, the two first rotating rollers 432 respectively roll upwards from the bottom of the packaging paper 200 onto the left side sheet 204 and right side sheet 205 of the packaging paper 200, thus rolling and attaching the left side sheet 204 and right side sheet 205 to the outer surfaces of the left side plate 103 and right side plate 104 of the top and bottom cover 100. Then, the clamping and lifting drive mechanism 2 drives the top surface of the top and bottom cover 100 downwards. The bending pieces are lowered to the position of the alignment bending pieces, and the side plates of the top and bottom covers 100 are aligned with the pressure plates. A cylinder drives the two pressure plates to move closer together to fix the top and bottom covers 100. The upper mold lifting drive assembly 21 drives the upper mold 23 to rise, causing the upper mold 23 to detach from the top and bottom covers 100 to avoid obstruction. The bending pieces are driven by the cylinder, causing the two first bending pieces to move towards each other. The two first bending pieces respectively press against the left inner flap 2041 at the top of the left piece 204 and the right inner flap 2051 at the top of the right piece 205, causing the left inner flap 2041 and the right inner flap 2051 to bend at 90° and respectively adhere to the upper mold. The upper edge of the left side plate 103 and the upper edge of the right side plate 104 of the top and bottom cover 100 are joined together. Then, the upper mold 23 is driven to descend by the upper mold lifting drive assembly 21, so that the upper mold 23 presses the left inner flap 2041 and the right inner flap 2051 against the inner side of the left side plate 103 and the right side plate 104 of the top and bottom cover 100 respectively. The second forming mechanism 5 attaches the front side piece 202 and the rear side piece 203 of the packaging paper 200 to the outer side of the front side plate 101 and the rear side plate 102 of the top and bottom cover 100 respectively, and attaches the front inner flap 2021 and the rear inner flap 2031 of the packaging paper 200 respectively. The inner sides of the front side plate 101 and rear side plate 102 attached to the top and bottom cover 100 have the same structure and principle as the first forming mechanism 4. The first forming mechanism 4 attaches the right front corner piece 2052 and right rear corner piece 2053 of the packaging paper 200 to the outer sides of the front side plate 101 and rear side plate 102 respectively, and attaches the left front corner piece 2042 and left rear corner piece 2043 (not shown in the figure) to the outer sides of the front side plate 101 and rear side plate 102 respectively to wrap the corners. This is achieved by the four fifth cylinders 48 on the bottom side of the two fourth mounting plates 41 driving the pressure blocks 49 to press and adhere accordingly.

[0041] Reference Figure 5The fourth transverse drive assembly 42 includes a third lead screw 421 rotatably mounted on the frame 1 and a sixth servo motor 422 for driving the third lead screw 421 to rotate. The third lead screw 421 is a bidirectional lead screw, and both reverse threaded portions of the third lead screw 421 are threadedly connected to a third nut sleeve 423. One third nut sleeve 423 is connected and fixed to one fourth mounting plate 41, and the other third nut sleeve 423 is connected and fixed to another fourth mounting plate 41. There are two third lead screws 421, and the two third lead screws 421 are respectively positioned at the positions of two sets of second fixing plates 14. The two ends of the third lead screw 421 are respectively connected to the two sets of second fixing plates 14. The second fixed plate 14 is rotatably connected, and the sixth servo motor 422 is fixed on one of the second fixed plates 14. The drive end of the sixth servo motor 422 is provided with a belt drive structure. The two third lead screws 421 are linked through the belt drive structure. The sixth servo motor 422 drives the belt drive structure to synchronously drive the two third lead screws 421 to rotate, thereby driving the third nut sleeve 423 on them to move away from or towards each other. This causes the two fourth mounting plates 41 to move closer or further apart to match the top and bottom covers 100 of different sizes. The belt drive structure and its combination with the lead screws are existing technologies and will not be described in detail in this application.

[0042] Reference Figure 6 The fifth transverse drive assembly 52 includes a fourth lead screw 521 rotatably mounted on the frame 1 and a seventh servo motor 522 for driving the fourth lead screw 521 to rotate. The fourth lead screw 521 is a bidirectional lead screw and is perpendicular to the third lead screw 421. Both reverse threaded sections of the fourth lead screw 521 are threadedly connected to a fourth nut sleeve 523. One fourth nut sleeve 523 is connected and fixed to one fifth mounting plate 51, and the other fourth nut sleeve 523 is connected and fixed to another fifth mounting plate 51. There are two fourth lead screws 521, and the two fourth lead screws 521 are respectively positioned on two sets of first fixing plates 13. The positions of the fourth lead screw 521 are such that both ends are rotatably connected to the two first fixed plates 13 respectively. The seventh servo motor 522 is fixed on one of the first fixed plates 13, and the drive end of the seventh servo motor 522 is provided with a belt drive structure. The two fourth lead screws 521 are linked through the belt drive structure. The seventh servo motor 522 drives the belt drive structure to synchronously drive the two fourth lead screws 521 to rotate, thereby driving the fourth nut sleeve 523 on it to move away from or towards each other, and driving the two fifth mounting plates 51 to move closer or further away to match the top and bottom covers 100 of different sizes.

[0043] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carton forming machine characterised in that: The device includes a frame on which a clamping and lifting drive mechanism is provided for clamping and lifting the top and bottom covers. Along the drive path of the clamping and lifting drive mechanism, the frame is provided with, from top to bottom, an automatic feeding mechanism for feeding the top and bottom covers onto the clamping and lifting drive mechanism, a first forming mechanism for attaching the packaging paper to the left and right side plates, and a second forming mechanism for attaching the packaging paper to the front and right side plates of the top and bottom covers.

2. A carton forming machine according to claim 1, wherein: The clamping and lifting drive mechanism includes an upper mold lifting drive assembly and a lower mold lifting drive assembly. The lower mold lifting drive assembly is located at the bottom of the frame and is driven by a lower mold for supporting the top and bottom covers with their openings facing upwards. The upper mold lifting drive assembly is located at the top of the frame and is driven by an upper mold whose size and shape match the internal shape and size of the top and bottom covers. The upper mold and the lower mold are aligned vertically. The upper mold is driven to lift and lower by the upper mold lifting drive assembly, and the lower mold is driven to lift and lower by the lower mold lifting drive assembly.

3. A carton forming machine according to claim 2, wherein: The upper mold lifting drive assembly includes a motor mounting base, a first servo motor, a movable plate, a second servo motor, a first lead screw, and a pull rail. The motor mounting base is fixed to the top of the frame. The movable plate is vertically connected to the motor mounting base. The first servo motor is fixed to the motor mounting base and located on the back of the movable plate. A rack extending along the length of the movable plate is provided on the back of the movable plate. The drive shaft of the first servo motor is provided with a gear that meshes with the rack. The second servo motor is fixedly installed on the front of the movable plate with its drive shaft facing downwards. The first lead screw is vertically arranged and its top end is connected to the drive shaft of the second servo motor. A first nut sleeve is fitted onto the body of the first lead screw. The pull rail is vertically arranged and its top end is fixedly connected to the first nut sleeve. The bottom end of the pull rail is fixedly connected to the upper mold.

4. A carton forming machine according to claim 2, wherein: The lower mold lifting drive assembly includes a lifting cylinder and a cylinder mounting base. The cylinder mounting base is fixed to the bottom of the frame. The lifting cylinder is vertically arranged and fixedly connected to the cylinder mounting base, with the telescopic shaft of the lifting cylinder facing upward. The lower mold is connected to the top end of the telescopic shaft of the lifting cylinder.

5. A carton forming machine according to claim 2, wherein: The automatic feeding mechanism includes two first mounting plates arranged laterally on opposite sides of the upper mold lifting drive assembly, and a first transverse drive assembly for connecting the two first mounting plates and driving them to move away from or towards each other. Each of the two first mounting plates has a first slide rail extending along its length on its facing side. A first slider is slidably mounted on the first slide rail, and the first slider is connected to a second mounting plate. A second transverse drive assembly is mounted on the first mounting plate to drive the second mounting plate to reciprocate along the length of the first slide rail. The second mounting plate is positioned away from the first mounting plate on one side. A second vertical slide rail is provided on the side, and a second slider is slidably mounted on the second slide rail. The second slider is connected to a third mounting plate. The second mounting plate is also provided with a mounting plate lifting drive assembly that is connected to the third mounting plate and drives the third mounting plate to rise and fall. A third slide rail is provided on the side of the third mounting plate away from the second mounting plate. The third slide rail is parallel to the first slide rail. Two third sliders are slidably mounted on the third slide rail. Each of the two third sliders is connected to a clamping block. The third mounting plate is provided with a third lateral movement drive assembly for driving the two third sliders to move away from or towards each other.

6. A carton forming machine according to claim 5, wherein: The first transverse drive assembly includes a second lead screw rotatably mounted on the frame and a third servo motor for driving the second lead screw to rotate. The second lead screw is a bidirectional lead screw, and each of the two reverse threaded sections of the second lead screw is threaded with a second nut sleeve. One second nut sleeve is connected and fixed to one of the first mounting plates, and the other second nut sleeve is connected and fixed to another of the first mounting plates.

7. A carton forming machine according to claim 5, wherein: The second transverse drive assembly includes two first pulleys rotatably disposed at both ends of the first mounting plate, a first transmission belt sleeved on the two first pulleys, and a fourth servo motor fixed on the first mounting plate for driving the first pulleys to rotate. The first slider is connected to the upper or lower section of the first transmission belt. The second transverse drive assembly includes a first cylinder vertically disposed on the second mounting plate. The drive shaft of the first cylinder is connected to a connecting block, and the connecting block is fixedly connected to the third mounting plate. The third transverse drive assembly includes two second pulleys rotatably disposed at both ends of the third mounting plate, a second transmission belt sleeved on the two second pulleys, and a fifth servo motor fixed on the third mounting plate for driving the second pulleys to rotate. The third slide rail is located in the middle of the second transmission belt, and the two third sliders are fixedly connected to the upper and lower sections of the second transmission belt, respectively.

8. A carton forming machine according to claim 2, wherein: The first forming mechanism includes two fourth mounting plates arranged laterally on opposite sides of the lifting clamping mechanism, and a fourth lateral movement drive assembly for connecting the two fourth mounting plates and driving them to move away from or towards each other. A second cylinder, a third cylinder, and a fourth cylinder are arranged from top to bottom on each of the two fourth mounting plates, and these cylinders are all placed laterally and perpendicular to the fourth mounting plates. The telescopic shaft of the second cylinder is connected to a first U-shaped frame, and a first rotating roller is rotatably connected to the first U-shaped frame. The telescopic shaft of the third cylinder is connected to a first bending plate. The telescopic shaft is connected to a first pressure plate, and the first U-shaped frame, the first bending piece, and the first pressure plate are all located between the two fourth mounting plates. The bottom sides of the two fourth mounting plates are also provided with fourth slide rails extending along their length direction. Two fourth sliders are slidably arranged on the fourth slide rails, and the fourth slide rails are evenly arranged with a number of threaded holes along their length direction. The fourth sliders are threadedly connected with bolts and are fixed to the fourth slide rails by the bolts being threaded into the threaded holes. A fifth cylinder is fixed on each of the two fourth sliders. A pressure block is provided on the telescopic shaft of the fifth cylinder, and the pressure block faces between the two fourth mounting plates.

9. A carton forming machine according to claim 8, wherein: The second forming mechanism includes two fifth mounting plates arranged horizontally on opposite sides of the lifting clamping mechanism, and a fifth transverse drive assembly for connecting the two fifth mounting plates and driving them to move away from or towards each other. The fifth mounting plates are perpendicular to the fourth mounting plates. A sixth cylinder, a seventh cylinder, and an eighth cylinder are arranged from top to bottom on both fifth mounting plates. The sixth, seventh, and eighth cylinders are all placed horizontally and perpendicular to the fifth mounting plates. A second U-shaped frame is connected to the telescopic shaft of the sixth cylinder. A second roller is rotatably connected to the second U-shaped frame. A second bending piece is connected to the telescopic shaft of the seventh cylinder. A second pressure plate is connected to the telescopic shaft of the eighth cylinder. The second U-shaped frame, the second bending piece, and the second pressure plate are all located between the two fourth mounting plates.

10. A carton forming machine according to claim 9, wherein: The fourth lateral movement drive assembly includes a third lead screw rotatably mounted on the frame and a sixth servo motor for driving the third lead screw to rotate. The third lead screw is a bidirectional lead screw, and both reverse threaded sections of the third lead screw are threadedly connected to a third nut sleeve. One third nut sleeve is fixedly connected to one of the fourth mounting plates, and the other third nut sleeve is fixedly connected to another of the fourth mounting plates. The fifth lateral movement drive assembly includes a fourth lead screw rotatably mounted on the frame and a seventh servo motor for driving the fourth lead screw to rotate. The fourth lead screw is a bidirectional lead screw, and both reverse threaded sections of the fourth lead screw are threadedly connected to a fourth nut sleeve. One fourth nut sleeve is fixedly connected to one of the fifth mounting plates, and the other fourth nut sleeve is fixedly connected to another of the fifth mounting plates.

Images