A small tray packer

Abstract

The utility model provides a kind of small dish packing machine, including rack, along the conveying direction of packing belt, belt feeding mechanism, clamping mechanism and cutting hot sealing mechanism are sequentially arranged on rack, and left belt feeding track and right belt feeding track are respectively arranged in the left and right sides of clamping mechanism.The utility model through above-mentioned structure, in the process of packing belt conveying, through the cooperation of multiple inner recessed parts on belt feeding wheel main body and the first protruding part and the second protruding part of first belt press wheel and second belt press wheel, the passing packing belt can form wave shape, to improve the stability of packing belt passing between small dish belt feeding wheel and belt press assembly, to prevent the phenomenon of skidding in conveying process.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a small tray packaging machine. Background Technology

[0002] For heavy-duty sheet materials, such as ceramic tiles, bricks, and marble flooring, a strapping machine is generally used for packaging. A strapping machine typically includes a strap feeding mechanism, a clamping mechanism, and a cutting and heat-sealing mechanism. During packaging, the strap feeding mechanism feeds the strap around the sheet material to bundle it up. Then, the clamping mechanism and the cutting and heat-sealing mechanism work together to cut the strap and heat-seal the two ends of the strap together to complete the packaging.

[0003] However, traditional strapping mechanisms include a strapping roller and a pressure chain. The strapping is conveyed between the pressure chain and the strapping roller by the rotation of the strapping roller. During the conveying process, the strapping is prone to slipping relative to the strapping roller, which affects the stability of the packing. Utility Model Content

[0004] This utility model discloses a small-diameter packing machine, which mainly solves the problem of slippage that easily occurs when the feed rollers and pressure chain of the traditional feeding mechanism conveys the packing tape.

[0005] To achieve the aforementioned objective, the technical solution of this utility model is implemented as follows:

[0006] This utility model provides a small tray baling machine, including a frame. Along the conveying direction of the baling strap, a strap feeding mechanism, a clamping mechanism and a cutting and heat sealing mechanism are sequentially arranged on the frame. A left inlet strap track and a right outlet strap track are respectively arranged on the left and right sides of the clamping mechanism.

[0007] The belt feeding mechanism includes a small belt feeding wheel driven by a belt feeding motor, a belt pressing assembly and a pressure adjusting assembly disposed on one side of the small belt feeding wheel. A belt feeding track is disposed above the small belt feeding wheel and a belt output track is disposed below it. The left belt inlet track is disposed at the bottom of the belt output track. The belt pressing assembly is rotatably connected to one end of the pressure adjusting assembly, and a pressure adjusting drive component for driving the pressure adjusting assembly is disposed at the other end.

[0008] The small disc feed roller includes a feed roller body, a drive gear is provided on the feed roller body, and a plurality of recesses are provided on the surface of the feed roller body;

[0009] The belt pressing assembly includes a belt pressing frame, on which a first belt pressing wheel and a second belt pressing wheel are rotatably connected. The first belt pressing wheel is provided with a first driven gear that meshes with a driving gear, and the second belt pressing wheel is provided with a second driven gear that meshes with a driving gear. The surface of the first belt pressing wheel is provided with a plurality of first protrusions that respectively match the concave portion, and the surface of the second belt pressing wheel is provided with a plurality of second protrusions that respectively match the concave portion.

[0010] In one embodiment, the pressure adjustment assembly includes a pressure adjustment frame mounted on a frame, a swing frame rotatably connected to the pressure adjustment frame, a pressure band assembly mounted on one end of the swing frame, a roller provided at the other end of the swing frame, a pressure adjustment drive including a pressure adjustment cylinder, an adjustment swing arm provided at the output end of the pressure adjustment cylinder, a rotating shaft rotatably connected to the frame at the end of the adjustment swing arm, an eccentric cam provided near the roller on the rotating shaft, and the eccentric cam abutting against the surface of the roller.

[0011] In one embodiment, a guide pulley is rotatably connected between the frame and the small disc feed pulley, and the guide pulley is mounted on the frame via a guide frame.

[0012] In one embodiment, the clamping mechanism includes a bracket mounted on a frame, a clamping base rotatably connected to the bracket, and a first clamping block and a second clamping block that move relative to the bracket and rise relative to the clamping base, respectively, on the bracket. The first clamping block has a strap hole, the clamping base is driven by a base clamping drive, the first clamping block is driven by a first clamping drive, the second clamping block is driven by a second clamping drive, and the cutting and heat sealing mechanism is disposed between the first clamping block and the second clamping block.

[0013] In one embodiment, the clamping mechanism further includes a guide block disposed below the cutting and heat sealing mechanism. The guide block moves back and forth relative to the cutting and heat sealing mechanism. The guide block is driven by a guide cylinder. The guide block is provided with a concave guide groove. The guide groove is provided with an outwardly expanding guide groove on the side facing the feeding mechanism.

[0014] In one embodiment, the base clamping drive includes a base clamping cylinder and a base clamping connecting rod rotatably connected to the frame. One end of the base clamping connecting rod is rotatably connected to the output end of the base clamping cylinder, and the other end is connected to the clamping base.

[0015] In one embodiment, the first clamping drive includes a first clamping cylinder and a first clamping swing arm rotatably connected to the frame. One end of the first clamping swing arm is rotatably connected to the output end of the first clamping cylinder, and the other end is rotatably connected to a bracket. The first clamping swing arm is provided with a first rotating groove for accommodating a first clamping block, and one end of the first clamping block is rotatably connected to the first rotating groove. The second clamping drive includes a second clamping cylinder and a second clamping swing arm rotatably connected to the frame. One end of the second clamping swing arm is rotatably connected to the output end of the second clamping cylinder, and the other end is rotatably connected to a bracket. The second clamping swing arm is provided with a second rotating groove for accommodating a second clamping block, and one end of the second clamping block is rotatably connected to the second rotating groove.

[0016] In one embodiment, the cutting and heat-sealing mechanism includes a cutting cylinder mounted on a frame and a pressure block that moves up and down relative to the support. One end of the pressure block is connected to the output end of the cutting cylinder, and a cutter is provided on the other end near the side of the first clamping block. A cavity is provided in the pressure block, and a heat-sealing swing arm is rotatably connected in the cavity. A heat-sealing head is rotatably connected to one end of the heat-sealing swing arm facing the clamping base, and a force-receiving hole is passed through the other end. The heat-sealing swing arm is driven by a pneumatic motor to drive an eccentric wheel to abut against the inner wall of the force-receiving hole. The bottom horizontal height of the cutter is lower than the bottom horizontal height of the heat-sealing head.

[0017] In one embodiment, the cutting and heat-sealing mechanism includes a cutting cylinder mounted on a frame and a pressure block that moves up and down relative to a support. One end of the pressure block is connected to the output end of the cutting cylinder, and a cutter is provided on the other end near the first clamping block. A notch is provided at the bottom of the pressure block, and a guide bearing is provided in the notch. A heat-sealing assembly is provided in the notch. The heat-sealing assembly includes a heat-sealing grinding head driven by a heat-sealing motor. The heat-sealing grinding head is mounted on a heat-sealing reciprocating frame. One end of the heat-sealing reciprocating frame is provided with a guide groove that cooperates with the guide bearing, and a push-pull frame is rotatably connected to the other end. An eccentric shaft is provided at the other end of the push-pull frame, and a driven pulley is provided on the eccentric shaft. A driving pulley is provided at the output end of the heat-sealing motor, and the driven pulley and the driving pulley are connected by a transmission belt.

[0018] The advantages or beneficial effects of the above technical solution include at least the following: when the strapping needs to be conveyed, the conveying motor of the conveying mechanism drives the rotation of the small conveying wheel, and with the cooperation of the pressing assembly and the pressure adjustment assembly, the strapping can be conveyed from the feeding track between the small conveying wheel and the pressing assembly, and then through the output track to the clamping mechanism, the cutting and heat sealing mechanism, the right output track and the left input track; during the conveying process of the strapping, the multiple concave parts on the main body of the conveying wheel cooperate with the first protrusion and the second protrusion of the first pressing wheel and the second pressing wheel respectively, so that the strapping can form a wave shape, thereby improving the stability of the strapping between the small conveying wheel and the pressing assembly, and thus preventing slippage during the conveying process. Attached Figure Description

[0019] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0020] Figure 1 A schematic diagram of the entire present invention is shown;

[0021] Figure 2 A schematic diagram of the belt feeding mechanism and the left-hand belt feed track of this utility model is shown;

[0022] Figure 3 This utility model is shown Figure 2 A cross-sectional schematic diagram;

[0023] Figure 4 A schematic diagram of the belt feeding motor, small disc belt feeding wheel, and belt pressing assembly of this utility model is shown;

[0024] Figure 5 A schematic diagram of the clamping mechanism, the cutting and heat-sealing mechanism, and the right-side exit track of this utility model is shown;

[0025] Figure 6 A schematic diagram of the clamping mechanism of this utility model is shown;

[0026] Figure 7 A schematic diagram of the guide belt block and guide belt cylinder of this utility model is shown;

[0027] Figure 8 A schematic diagram of the pneumatic method of the cutting and heat sealing mechanism of this utility model is shown;

[0028] Figure 9 This utility model is shown Figure 8 A cross-sectional schematic diagram;

[0029] Figure 10A schematic diagram of the electric method of the cutting and heat sealing mechanism of this utility model is shown;

[0030] Figure 11 This utility model is shown Figure 10 A side sectional view.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Rack;

[0033] 2. Belt feeding mechanism;

[0034] 21. Belt feeding motor; 22. Small disc belt feeding roller; 221. Belt feeding roller body; 222. Drive gear; 223. Concave portion; 23. Belt pressing assembly; 231. Belt pressing frame; 232. First belt pressing roller; 233. Second belt pressing roller; 234. First driven gear; 235. Second driven gear; 236. First protrusion; 237. Second protrusion; 24. Belt supply track; 25. Belt output track; 26. Pressure adjustment assembly; 261. Pressure adjustment frame; 262. Swing frame; 263. Roller; 27. Pressure adjustment drive component; 271. Pressure adjustment cylinder; 272. Adjustment swing frame; 273. Rotary shaft; 274. Eccentric cam; 28. Guide roller; 281. Guide frame;

[0035] 3. Clamping mechanism;

[0036] 31. Bracket; 32. Clamping base; 33. First clamping block; 331. Strap hole; 34. Second clamping block; 35. Strap guide block; 351. Strap guide groove; 352. Guide groove; 36. Base clamping drive component; 361. Base clamping cylinder; 362. Base clamping connecting rod; 37. First clamping drive component; 371. First clamping cylinder; 372. First clamping swing arm; 373. First rotating groove; 38. Second clamping drive component; 381. Second clamping cylinder; 382. Second clamping swing arm; 383. Second rotating groove; 39. Strap guide cylinder;

[0037] 4. Cut off the heat sealing mechanism;

[0038] 41. Cutting cylinder; 42. Pressing block; 421. Cavity; 422. Notch; 423. Guide bearing; 43. Cutting blade; 44. Heat sealing swing arm; 441. Heat sealing head; 442. Force-receiving hole; 45. Pneumatic motor; 451. Eccentric wheel; 46. Heat sealing assembly; 461. Heat sealing grinding head; 462. Heat sealing motor; 463. Drive pulley; 464. Transmission belt; 465. Driven pulley; 466. Eccentric shaft; 467. Push-pull frame; 468. Heat sealing reciprocating frame; 469. Guide groove;

[0039] 5. Right exit track;

[0040] 6. Left-hand entry with track. Detailed Implementation

[0041] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0042] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0044] It should be noted that the terms "a" and "a plurality of" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0045] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0046] See Figures 1 to 4 The present invention provides a small tray packing machine, including a frame 1. Along the conveying direction of the packing strap, a feeding mechanism 2, a clamping mechanism 3 and a cutting and heat sealing mechanism 4 are sequentially arranged on the frame 1. A left infeed track 6 and a right outfeed track 5 are respectively arranged on the left and right sides of the clamping mechanism 3.

[0047] The belt feeding mechanism 2 includes a small belt feeding wheel 22 driven by a belt feeding motor 21, a belt pressing assembly 23 and a pressure adjusting assembly 26 disposed on one side of the small belt feeding wheel 22. A belt feeding track 24 is disposed above the small belt feeding wheel 22, and a belt output track 25 is disposed below it. A left belt inlet track 6 is disposed at the bottom of the belt output track 25. The belt pressing assembly 23 is rotatably connected to one end of the pressure adjusting assembly 26, and a pressure adjusting drive component 27 for driving the pressure adjusting assembly 26 is disposed at the other end.

[0048] The small disc feeder 22 includes a feeder body 221, a drive gear 222 is provided on the feeder body 221, and a plurality of recesses 223 are provided on the surface of the feeder body 221.

[0049] The belt pressing assembly 23 includes a belt pressing frame 231, on which a first belt pressing wheel 232 and a second belt pressing wheel 233 are rotatably connected. The first belt pressing wheel 232 is provided with a first driven gear 234 that meshes with the driving gear 222, and the second belt pressing wheel 233 is provided with a second driven gear 235 that meshes with the driving gear 222. The surface of the first belt pressing wheel 232 is provided with a plurality of first protrusions 236 that respectively match the concave portion 223, and the surface of the second belt pressing wheel 233 is provided with a plurality of second protrusions 237 that respectively match the concave portion 223.

[0050] With the above structure, when the strapping needs to be conveyed, the feeding motor 21 of the feeding mechanism 2 drives the rotation of the small feeding wheel 22. With the cooperation of the pressing assembly 23 and the pressure adjustment assembly 26, the strapping can be conveyed from the feeding track 24 between the small feeding wheel 22 and the pressing assembly 23, and then through the exit track 25 to the clamping mechanism 3, the cutting and heat sealing mechanism 4, the right exit track 5 and the left entry track 6. During the conveying process of the strapping, the multiple concave portions 223 on the feeding wheel body 221 cooperate with the first protrusion 236 and the second protrusion 237 of the first pressing wheel 232 and the second pressing wheel 233 respectively, so that the strapping can form a wave shape, thereby improving the stability of the strapping between the small feeding wheel 22 and the pressing assembly 23 and preventing slippage during the conveying process. After the end of the packing strap is conveyed by the small disc feed roller 22 to the board to be packed, and then conveyed to the position of the clamping mechanism 3 and the cutting and heat sealing mechanism 4, the overlapping part of the packing strap can be clamped by the clamping mechanism 3. Then, the small disc feed roller 22 is driven in reverse by the feed motor 21 to tighten the packing strap. Then, the packing strap can be heat sealed and cut by the cutting and heat sealing mechanism 4.

[0051] In one embodiment, see Figure 2 and Figure 3The pressure adjustment assembly 26 includes a pressure adjustment frame 261 mounted on the frame 1, a swing frame 262 rotatably connected to the pressure adjustment frame 261, a pressure belt assembly 23 mounted on one end of the swing frame 262, and a roller 263 provided at the other end of the swing frame 262. The pressure adjustment drive component 27 includes a pressure adjustment cylinder 271, an adjustment swing frame 272 provided at the output end of the pressure adjustment cylinder 271, a rotating shaft 273 rotatably connected to the frame 1 provided at the end of the adjustment swing frame 272, and an eccentric cam 274 provided near the roller 263 on the rotating shaft 273, the eccentric cam 274 abutting against the surface of the roller 263. In practical applications, the swing frame 262 is adjusted by the roller 263 on the swing frame 262 in conjunction with the eccentric cam 274. The pressure adjusting cylinder 271 drives the swing frame 272 to swing, which in turn drives the rotating shaft 273 to rotate. The rotating shaft 273 then drives the eccentric cam 274 to rotate, causing the eccentric cam 274 to push the roller 263, thus causing the swing frame 262 to swing. This allows adjustment of the distance between the feed roller body 221 and the first and second pressure rollers 232 and 233, facilitating control of the clamping force on the strapping conveyor. To accommodate the range of adjustment distances between the feed roller body 221 and the first and second pressure rollers 232 and 233, the tooth depths of the driving gear 222, the first driven gear 234, and the second driven gear 235 can be set according to actual conditions.

[0052] A guide pulley 28 is rotatably connected between the output track 25 and the small feed roller 22 on the frame 1. The guide pulley 28 is mounted on the frame 1 via a guide frame 281. In practical applications, the guide pulley 28 guides the packing strapping passing through the output track 25 and reduces resistance.

[0053] In one embodiment, see Figure 5 , Figure 6 and Figure 7The clamping mechanism 3 includes a bracket 31 mounted on the frame 1. A clamping base 32 is rotatably connected to the bracket 31. A first clamping block 33 and a second clamping block 34 are respectively provided on the bracket 31 at positions corresponding to the clamping base 32, and are respectively raised and lowered relative to the bracket 31. The first clamping block 33 is provided with a strap hole 331. The clamping base 32 is driven by a base clamping drive 36, the first clamping block 33 is driven by a first clamping drive 37, and the second clamping block 34 is driven by a second clamping drive 38. The cutting and heat sealing mechanism 4 is disposed between the first clamping block 33 and the second clamping block 34. In practical applications, with the cooperation of the clamping base 32, the first clamping block 33, and the second clamping block 34, and with the cooperation of the base clamping drive 36, the first clamping drive 37, and the second clamping drive 38, the packing strap can be clamped onto the clamping base 32 by the first clamping block 33 and the second clamping block 34. Then, the overlapping parts of the packing strap are heat-sealed and cut by the cutting and heat-sealing mechanism 4. During the feeding process by the feeding mechanism 2, the end of the packing strap passes through the threading hole 331 and is then fed out along the right exit track 5. After being wrapped around the board to be packed by the external annular track, it is transported along the left inlet track 6 to the bottom of the first clamping block 33 and the second clamping block 34, where the first clamping block 33 clamps the packing strap onto the clamping base 32. When tightening the strapping, the strapping motor 21 drives the small disc feed roller 22 in the reverse direction to transport the strapping in the reverse direction, so that the strapping that passes through the strapping hole 331 is transported in the reverse direction to tighten the board to be packaged. Then, the second clamping block 34 can clamp the other position of the strapping on the clamping base 32. The overlapping part of the strapping can be heat-sealed by the cutting and heat-sealing mechanism 4 and the strapping that passes through the strapping hole 331 can be cut.

[0054] The clamping mechanism 3 also includes a guide block 35 disposed below the cutting and heat-sealing mechanism 4. The guide block 35 moves back and forth relative to the cutting and heat-sealing mechanism 4 and is driven by a guide cylinder 39. The guide block 35 is provided with a concave guide groove 351, and the guide groove 351 is provided with an outwardly expanding guide groove 352 on the side facing the feeding mechanism 2. In actual use, during the conveying of the packing strap, the guide groove 351 and guide groove 352 of the guide block 35 can guide the end of the packing strap passing through the threading hole 331 to the guide groove 351 through the guide groove 352, and guide the packing strap to the right exit track 5 through the guide groove 351. When the packing strap needs to be heat-sealed and cut by the cutting and heat-sealing mechanism 4, the guide cylinder 39 can drive the guide block 35 to move away from the cutting and heat-sealing mechanism 4 to prevent the guide block 35 from obstructing the cutting and heat-sealing mechanism 4 from heat-sealing and cutting the packing strap.

[0055] The base clamping drive component 36 includes a base clamping cylinder 361 and a base clamping connecting rod 362 rotatably connected to the frame 1. One end of the base clamping connecting rod 362 is rotatably connected to the output end of the base clamping cylinder 361, and the other end is connected to the clamping base 32. In practical applications, when the base clamping cylinder 361 drives the base clamping connecting rod 362, it can drive the clamping base 32 to rotate on the support 31, so as to coordinate with the clamping action of the first clamping block 33 and the second clamping block 34 on the packing strap. After packing is completed, the base clamping cylinder 361 can drive the clamping base 32 to rotate away from the packing strap.

[0056] The first clamping drive unit 37 includes a first clamping cylinder 371 and a first clamping swing arm 372 rotatably connected to the frame 1. One end of the first clamping swing arm 372 is rotatably connected to the output end of the first clamping cylinder 371, and the other end is rotatably connected to the bracket 31. The first clamping swing arm 372 is provided with a first rotating groove 373 for accommodating a first clamping block 33. One end of the first clamping block 33 is rotatably connected to the first rotating groove 373. The second clamping drive unit 38 includes a second clamping cylinder 381 and a second clamping swing arm 382 rotatably connected to the frame 1. One end of the second clamping swing arm 382 is rotatably connected to the output end of the second clamping cylinder 381, and the other end is rotatably connected to the bracket 31. The second clamping swing arm 382 is provided with a second rotating groove 383 for accommodating a second clamping block 34. One end of the second clamping block 34 is rotatably connected to the second rotating groove 383. In practical applications, the first rotating groove 373 on the first clamping swing arm 372, in conjunction with the first clamping block 33, enables the first clamping cylinder 371 to drive the first clamping swing arm 372 to swing, thereby causing the first clamping block 33 to move vertically up and down on the support 31. Similarly, the second rotating groove 383 on the second clamping swing arm 382, ​​in conjunction with the second clamping block 34, enables the second clamping cylinder 381 to drive the second clamping swing arm 382 to swing, thereby causing the second clamping block 34 to move vertically up and down on the support 31. After packaging is completed, the first clamping cylinder 371 and the second clamping cylinder 381 can drive the first clamping block 33 and the second clamping block 34 to rise, facilitating the detachment of the heat-sealed and cut packaging strap.

[0057] In one embodiment, see Figure 8 and Figure 9To enable pneumatic heat sealing, the cutting and heat sealing mechanism 4 includes a cutting cylinder 41 mounted on the frame 1 and a pressure block 42 that moves up and down relative to the support 31. One end of the pressure block 42 is connected to the output end of the cutting cylinder 41, and a cutter 43 is provided on the other end near the first clamping block 33. A cavity 421 is provided in the pressure block 42, and a heat sealing swing arm 44 is rotatably connected in the cavity 421. A heat sealing head 441 is rotatably connected to one end of the heat sealing swing arm 44 facing the clamping base 32, and a force-receiving hole 442 passes through the other end. The heat sealing swing arm 44 is driven by a pneumatic motor 45 to drive an eccentric wheel 451 to abut against the inner wall of the force-receiving hole 442. The bottom of the cutter 43 is horizontally lower than the bottom of the heat sealing head 441. The surface of the heat sealing head 441 can be set with high roughness to increase the friction when the heat sealing head 441 rubs against the packing strap. In practical applications, when it is necessary to heat seal and cut the packing strap, the cutting cylinder 41 drives the pressure block 42 to move toward the packing strap, so that the pressure block 42 drives the cutter 43 to cut the part of the packing strap that passes through the threading hole 331. After the pneumatic motor 45 drives the eccentric wheel 451, the eccentric wheel 451 and the force hole 442 cooperate to drive the heat sealing swing arm 44 to perform a reciprocating swing action, so that the heat sealing head 441 at the other end of the heat sealing swing arm 44 reciprocates and rubs against the packing strap to generate heat, thereby heating the packing strap to heat fuse the overlapping parts of the packing strap.

[0058] In one embodiment, see Figure 10 and Figure 11To enable electric heat sealing, another structure of the cutting heat sealing mechanism 4 includes a cutting cylinder 41 mounted on the frame 1 and a pressure block 42 that moves up and down relative to the support 31. One end of the pressure block 42 is connected to the output end of the cutting cylinder 41, and the other end is provided with a cutter 43 near the first clamping block 33. A notch 422 is provided at the bottom of the pressure block 422, a guide bearing 423 is provided in the notch 422, and a heat sealing assembly 46 is provided in the notch 422. The heat sealing assembly 46 includes a heat sealing component. A heat-sealing grinding head 461 driven by a motor 462 is mounted on a heat-sealing reciprocating frame 468. One end of the heat-sealing reciprocating frame 468 is provided with a guide groove 469 that mates with a guide bearing 423, and the other end is rotatably connected to a push-pull frame 467. The other end of the push-pull frame 467 is provided with an eccentric shaft 466, on which a driven pulley 465 is provided. The output end of the heat-sealing motor 462 is provided with a driving pulley 463. The driven pulley 465 and the driving pulley 463 are connected by a transmission belt 464. The surface of the heat-sealing grinding head 461 can be set with high roughness to increase the friction force when the heat-sealing head 441 rubs the packing strap. It has the same function as the heat-sealing head 441, which is used to rub the packing strap. In practical applications, when heat sealing and cutting of the strapping are required, the cutting cylinder 41 drives the pressure block 42 to move toward the strapping, causing the pressure block 42 to drive the cutter 43 to cut the strapping at the point where it passes through the threading hole 331. Then, the heat sealing motor 462 drives the drive pulley 463, and the transmission belt 464 transmits the power to the driven pulley 465 and the eccentric shaft 466. With the cooperation of the guide groove 469 and the guide bearing 423, the eccentric shaft 466 drives the push-pull frame 467 and the heat sealing reciprocating frame 468 to move back and forth in the notch 422. This causes the heat sealing reciprocating frame 468 to drive the heat sealing grinding head 461 to rub against the strapping, generating heat and thus heating the strapping to heat-fuse the overlapping parts of the strapping.

[0059] The pneumatic and electric methods of the aforementioned cutting and heat sealing mechanism 4 can be interchanged depending on the actual usage environment.

[0060] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0061] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications can be made based on the above-described invention, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A small-plate packaging machine, characterized in that, The device includes a frame, and along the conveying direction of the packing strap, a feeding mechanism, a clamping mechanism, and a cutting and heat sealing mechanism are sequentially arranged on the frame. The left and right sides of the clamping mechanism are respectively provided with a left infeed track and a right outfeed track. The belt feeding mechanism includes a small belt feeding wheel driven by a belt feeding motor, a belt pressing assembly and a pressure adjusting assembly disposed on one side of the small belt feeding wheel. A belt feeding track is disposed above the small belt feeding wheel and a belt output track is disposed below it. The left belt inlet track is disposed at the bottom of the belt output track. The belt pressing assembly is rotatably connected to one end of the pressure adjusting assembly, and a pressure adjusting drive component for driving the pressure adjusting assembly is disposed at the other end. The small disc feed roller includes a feed roller body, a drive gear is provided on the feed roller body, and a plurality of recesses are provided on the surface of the feed roller body; The belt pressing assembly includes a belt pressing frame, on which a first belt pressing wheel and a second belt pressing wheel are rotatably connected. The first belt pressing wheel is provided with a first driven gear that meshes with a driving gear, and the second belt pressing wheel is provided with a second driven gear that meshes with a driving gear. The surface of the first belt pressing wheel is provided with a plurality of first protrusions that respectively match the concave portion, and the surface of the second belt pressing wheel is provided with a plurality of second protrusions that respectively match the concave portion.

2. The small tray packaging machine as described in claim 1, characterized in that, The pressure adjustment assembly includes a pressure adjustment frame mounted on a frame, a swing frame rotatably connected to the pressure adjustment frame, a pressure band assembly mounted on one end of the swing frame, and a roller at the other end of the swing frame. The pressure adjustment drive includes a pressure adjustment cylinder, an adjustment swing arm at the output end of the pressure adjustment cylinder, a rotating shaft rotatably connected to the frame at the end of the adjustment swing arm, and an eccentric cam near the roller on the rotating shaft, the eccentric cam abutting against the surface of the roller.

3. The small tray packaging machine as described in claim 2, characterized in that, The frame is rotatably connected to the track and the small disc feed wheel, and the guide wheel is mounted on the frame via a guide frame.

4. The small tray packaging machine as described in claim 1, characterized in that, The clamping mechanism includes a bracket mounted on a frame, a clamping base rotatably connected to the bracket, and a first clamping block and a second clamping block that move relative to the bracket and lift relative to the clamping base respectively. The first clamping block has a strap hole. The clamping base is driven by a base clamping drive, the first clamping block is driven by a first clamping drive, and the second clamping block is driven by a second clamping drive. The cutting and heat sealing mechanism is located between the first clamping block and the second clamping block.

5. The small-plate packaging machine as described in claim 4, characterized in that, The clamping mechanism also includes a guide block disposed below the cutting and heat sealing mechanism. The guide block moves back and forth relative to the cutting and heat sealing mechanism. The guide block is driven by a guide cylinder. The guide block is provided with a concave guide groove. The guide groove is provided with an outwardly expanding guide groove on the side facing the feeding mechanism.

6. The small tray packaging machine as described in claim 4, characterized in that, The base clamping drive includes a base clamping cylinder and a base clamping connecting rod rotatably connected to the frame. One end of the base clamping connecting rod is rotatably connected to the output end of the base clamping cylinder, and the other end is connected to the clamping base.

7. The small tray packaging machine as described in claim 4, characterized in that, The first clamping drive includes a first clamping cylinder and a first clamping swing arm rotatably connected to the frame. One end of the first clamping swing arm is rotatably connected to the output end of the first clamping cylinder, and the other end is rotatably connected to the bracket. The first clamping swing arm is provided with a first rotating groove for accommodating a first clamping block, and one end of the first clamping block is rotatably connected to the first rotating groove. The second clamping drive includes a second clamping cylinder and a second clamping swing arm rotatably connected to the frame. One end of the second clamping swing arm is rotatably connected to the output end of the second clamping cylinder, and the other end is rotatably connected to the bracket. The second clamping swing arm is provided with a second rotating groove for accommodating a second clamping block, and one end of the second clamping block is rotatably connected to the second rotating groove.

8. The small tray packaging machine as described in claim 4, characterized in that, The cutting and heat-sealing mechanism includes a cutting cylinder mounted on a frame and a pressure block that moves up and down relative to the support. One end of the pressure block is connected to the output end of the cutting cylinder, and a cutter is provided on the other end near the first clamping block. A cavity is provided in the pressure block, and a heat-sealing swing arm is rotatably connected in the cavity. A heat-sealing head is rotatably connected to one end of the heat-sealing swing arm facing the clamping base, and a force-receiving hole is passed through the other end. The heat-sealing swing arm is driven by a pneumatic motor to drive an eccentric wheel to abut against the inner wall of the force-receiving hole. The bottom horizontal height of the cutter is lower than the bottom horizontal height of the heat-sealing head.

9. The small tray packaging machine as described in claim 4, characterized in that, The cutting and heat-sealing mechanism includes a cutting cylinder mounted on a frame and a pressure block that moves up and down relative to the support. One end of the pressure block is connected to the output end of the cutting cylinder, and a cutter is provided on the other end near the first clamping block. A notch is provided at the bottom of the pressure block, and a guide bearing is provided in the notch. A heat-sealing assembly is provided in the notch. The heat-sealing assembly includes a heat-sealing grinding head driven by a heat-sealing motor. The heat-sealing grinding head is mounted on a heat-sealing reciprocating frame. One end of the heat-sealing reciprocating frame is provided with a guide groove that cooperates with the guide bearing, and a push-pull frame is rotatably connected to the other end. An eccentric shaft is provided at the other end of the push-pull frame, and a driven pulley is provided on the eccentric shaft. A driving pulley is provided at the output end of the heat-sealing motor, and the driven pulley and the driving pulley are connected by a transmission belt.

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