Hot melt mechanism

Abstract

The present invention discloses a hot melt mechanism, including a hot melt part, a conveying track and a conveying part, a conveying assembly and N pushers connected to the conveying assembly, the pushers are distributed along the conveying track, the pushers include M processing grooves and N-M positioning grooves, the processing grooves and the positioning grooves can accommodate workpieces, the conveying assembly can drive the pushers to move along the conveying track to drive the workpieces to move, the processing grooves on different pushers are at different positions, the processing grooves are non-repeatedly replaced in sequence, each processing groove corresponds to a hot melt part position, and the hot melt part hot-melts the workpiece in the processing groove. In the hot melt mechanism of this embodiment, the conveying assembly can drive the pushers to move to the hot melt part at different workstations, and the hot melt part can process M*N workpieces in sequence per action, with high processing efficiency, the processing grooves and the positioning grooves can be replaced in position, and the structure of the hot melt mechanism is more compact and the occupied space of the hot melt mechanism is reduced under the premise of ensuring that each workpiece is processed.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a hot-melt mechanism. Background Art

[0002] Hot melting generally uses electric heating to transfer heat to the welding surface, causing the surface to melt and promote the surface to fuse or solidify with other parts. In the existing processing field, it is often necessary to hot melt a certain part of the product or the adjacent parts of two products to achieve the effect of connection, sealing and fusion.

[0003] Traditional hot melt mechanisms use many power devices to improve hot melt efficiency. Each product to be thermally processed corresponds to a hot melt element to perform the hot melt operation, resulting in high cost of the melting mechanism, large space occupied, and long debugging time of the mechanism, which seriously affects the hot melt efficiency. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a hot melt mechanism that can improve the hot melt efficiency and reduce the space occupancy rate of the mechanism.

[0005] One embodiment of the present invention provides a hot melt mechanism, comprising:

[0006] Multiple hot-melt parts for hot-melting the workpiece;

[0007] Conveying track for placing workpieces;

[0008] The conveying part includes a conveying assembly and N pushers connected to the conveying assembly, wherein the pushers are distributed along the conveying track, the pushers include M processing grooves and NM positioning grooves, the processing grooves and the positioning grooves can accommodate workpieces, the conveying assembly can drive the pushers to move along the conveying track to drive the workpieces to move, the positions of the processing grooves on different pushers are different, the processing grooves replace the positions of the positioning grooves in sequence without duplication, each processing groove corresponds to a position of the hot melt part, and the hot melt part hot melts the workpiece in the processing groove;

[0009] Said N≥2, M≥1.

[0010] The hot melt mechanism in the embodiment of the present invention has at least the following beneficial effects:

[0011] In the hot melt mechanism of this embodiment, the conveying component can drive the claw to move along the conveying track, so that the claw moves to the hot melt part at different workstations. The hot melt part can process M*N workpieces in turn with each action, and the processing efficiency is high. In addition, due to the replacement of the position of the processing groove and the positioning groove in the claw, the structure of the hot melt mechanism is more compact while ensuring that each workpiece is processed. The space occupied by the hot melt mechanism is reduced.

[0012] According to some other embodiments of the hot melt mechanism of the present invention, each of the pusher claws is provided with a processing groove, and along the feed direction of the workpiece or the direction away from the workpiece, the processing groove and the adjacent positioning groove in the same pusher claw are replaced in position.

[0013] According to some other embodiments of the present invention, the hot melt mechanism further includes a first positioning portion, which includes a first driving unit, a first sliding group and a first lifting block. The first sliding group is connected to the first driving unit and can move under the drive of the first driving unit to drive the first lifting block to move and tighten the workpiece.

[0014] According to some other embodiments of the hot melt mechanism of the present invention, a limit frame is provided on the conveying track, and the limit frame includes a first limit plate. A first elastic member is provided between the first lifting block and the first driving unit, and the first elastic member abuts against the first lifting block to make the workpiece close to the first limit plate.

[0015] According to some other embodiments of the present invention, the hot melt mechanism further includes a first positioning portion, which further includes a second driving unit, a second slide group and a second lifting block, the second slide group is connected to the second driving unit, and can drive the second lifting block to move, and the end of the second lifting block is rotatably connected to a roller, and the surface of the roller can be close to the workpiece.

[0016] According to some other embodiments of the hot melt mechanism of the present invention, a limiting frame is provided on the conveying track, and the limiting frame includes a second limiting plate. The workpiece can be pressed against the second limiting plate under the supporting action of the roller.

[0017] According to some other embodiments of the present invention, the hot melt mechanism further includes a second positioning portion, which includes a third driving unit, a transmission assembly and a prying clamp, the third driving unit drives the transmission assembly to move, and the prying clamp is connected to the transmission assembly and moves with the transmission assembly so that the prying clamp presses the workpiece.

[0018] According to some other embodiments of the hot melt mechanism of the present invention, the transmission assembly includes a sliding block, a follower unit and a track block, the sliding block is connected to the clamp, and the follower unit can move along the edge of the track block to move the sliding block.

[0019] According to some other embodiments of the hot melt mechanism of the present invention, the transmission assembly further comprises a second elastic member, and the second elastic member is extended and retracted under the drive of the follower unit to resist the sliding block so that the pulling clamp is closely attached to the workpiece.

[0020] According to some other embodiments of the hot melt mechanism of the present invention, the conveying assembly includes a fourth driving unit and a slider, the slider is fixedly connected to the pusher claw, and the fourth driving unit drives the slider to move so that the pusher claw moves along the conveying track. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment of a hot melt mechanism;

[0022] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle claw;

[0023] Figure 3 is a structural schematic diagram of an embodiment of the first positioning portion;

[0024] Figure 4 yes Figure 3 A partial schematic diagram of the first positioning portion;

[0025] Figure 5 is a structural schematic diagram of an embodiment of a first sliding group;

[0026] Figure 6 It is a structural schematic diagram of an embodiment of a limiting frame;

[0027] Figure 7 is a structural schematic diagram of an embodiment of the second sliding group;

[0028] Figure 8 is a structural schematic diagram of an embodiment of the second positioning portion;

[0029] Fig. 9 yes Figure 8 A partial schematic diagram of the second positioning portion;

[0030] Fig.10 It is a schematic structural diagram of an embodiment of a conveying component. DETAILED DESCRIPTION

[0031] The following will be combined with the embodiments to clearly and completely describe the concept of the present invention and the technical effects produced, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0032] In the description of the embodiments of the present invention, if orientation descriptions are involved, the orientations or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0033] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected", or "installed" on another feature, it may be directly set, fixed, or connected to the other feature, or it may be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than", or "exceeds" is involved, it should be understood as not including the number itself, and if "above", "below", or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] Figure 1 and Figure 2 The hot melt mechanism and the pusher claw 220 are shown in FIG. Figure 1 and Figure 2The hot melt mechanism in this embodiment includes a hot melt unit, a conveying track 100 and a conveying unit 200. The workpiece to be hot melted can be placed on the conveying track 100 for transfer. The hot melt unit is used to hot melt the workpiece, and the conveying unit 200 is used to convey the workpiece so that the workpiece moves along the conveying track 100. Specifically, the conveying unit 200 includes a conveying assembly 210 and N fingers 220 connected to the conveying assembly 210. The fingers 220 are distributed along the conveying track 100. The conveying assembly 210 is connected to the fingers 220 and drives the fingers 220 to move. The fingers 220 then move the workpiece so that the workpiece moves along the conveying track 100. The fingers 220 are provided with M processing grooves 221 and NM positioning grooves 222. Both the processing grooves 221 and the positioning grooves 222 can accommodate the workpiece. The workpiece is limited by the processing grooves 221 or the positioning grooves 222 and follows the fingers 220. Movement; M≥1, N≥2, the positions of the processing grooves 221 in different pusher claws 220 are different, and the processing grooves 221 do not repeatedly replace the positions of the positioning grooves 222 on the pusher claws 220, so that the arrangement of the processing grooves 221 and the positioning grooves 222 in each pusher claw 220 is different, and the processing grooves 221 have replaced the positions of all the positioning grooves 222; each pusher claw 220 has a corresponding hot-melt portion, and the processing grooves 221 on each pusher claw 220 correspond to the position of a hot-melt portion, and the hot-melt portion hot-melts the workpiece accommodated in the processing groove 221. Each pusher claw 220 can push N workpieces, and the hot melt portion at the current position just corresponds to the workpiece in the processing groove 221 in the pusher claw 220 and performs hot melting. As the conveying component 210 continuously conveys the pusher claw 220, the processing groove 221 in the pusher claw 220 that moves to the next position just corresponds to the hot melt portion at this position, and the cycle is repeated in sequence. The hot melt portion can process M*N workpieces each time. After the pusher claw 220 moves N / M times, all the N workpieces pushed by each pusher claw 220 are processed.

[0035] In the hot melt mechanism of this embodiment, the conveying component 210 can drive the pusher claw 220 to move along the conveying track 100, so that the pusher claw 220 moves to the hot melt part at different workstations. The hot melt part can process M*N workpieces in turn with each action, and the processing efficiency is relatively high. In addition, due to the replacement of the position of the processing groove 221 and the positioning groove 222 in the pusher claw 220, the structure of the hot melt mechanism is more compact while ensuring that each workpiece is processed. The space occupied by the hot melt mechanism is reduced.

[0036] It should be noted that each finger 220 has a corresponding hot-melt portion. Figure 1 The hot melt part is not shown in the figure, and the hot melt part can adopt a conventional hot melt device, such as a hot melt lamp, a hot melter, etc. In this embodiment, N=4, M=1, and Figure 1, the direction indicated by the arrow is the feeding direction of the finger 220, and the positions of the finger 220 are numbered in the direction of the arrow, from left to right, they are the first finger 220, the second finger 220, the third finger 220, and the fourth finger 220, the processing groove 221 in the first finger 220 is located at the fourth position, the processing groove 221 in the second finger 220 is located at the third position, the processing groove 221 in the third finger 220 is located at the second position, and the processing groove 221 in the fourth finger 220 is located at the first position; Figure 1 In the state shown, the hot melt unit processes the workpiece at the fourth position of the first finger 220, processes the workpiece at the third position of the second finger 220, processes the workpiece at the second position of the third finger 220, and processes the workpiece at the first position of the fourth finger 220, so the hot melt unit can process 4 workpieces at a time; the finger 220 moves forward one station under the drive of the conveying assembly 210, and moves the workpiece at the previous station to the next station, and then the finger 220 retreats, and then positions the workpiece at the previous station. Due to the movement of the workpiece position, the workpiece originally in the first finger 220 moves to the position of the second finger 220 and the fourth finger 220 is processed. The workpiece in the machining groove 221 at the third position is machined, the workpiece originally in the second pusher claw 220 is moved to the position of the third pusher claw 220 and the workpiece in the machining groove 221 at the second position is machined, the workpiece originally in the third pusher claw 220 is moved to the position of the fourth pusher claw 220 and the workpiece in the machining groove 221 at the first position is machined, the workpiece originally in the fourth pusher claw 220 has been completely machined, the conveying channel feeds left and right to the first pusher claw 220 and processes the workpiece in the machining groove 221 at the fourth position of the first pusher claw 220, and this cycle is repeated. After the workpiece is fed forward four times, the workpiece moved by each pusher claw 220 will be completely machined.

[0037] In this embodiment, the position of the processing groove 221 is replaced with the adjacent positioning groove 222. Of course, it is not necessary to replace all adjacent positioning grooves 222 for processing. For example, the processing groove 221 of the first finger 220 is located at the fourth position, the processing groove 221 of the second finger 220 is located at the third position, the processing groove 221 of the third finger 220 is located at the fourth position, and the processing groove 221 of the fourth finger 220 is located at the second position. After the finger 220 is fed four times, the processing of the workpiece moved by each finger 220 can also be completed.

[0038] Of course, at least two processing grooves 221 may be provided in each pusher claw 220, as long as the processing groove 221 does not repeatedly replace the positioning groove 222 at the same position and each positioning groove 222 has been replaced. After the pusher claw 220 is fed N / M times, the processing of the workpiece pushed by each pusher claw 220 can also be completed.

[0039] The hot melt mechanism also includes a first positioning portion 300, referring to Figures 3 to 5 ,, the first positioning part 300 includes a first driving unit 310, a second driving unit 320, a first sliding block 350 and a roller 360 of the same number as the processing groove 221, the first driving unit 310 and the second driving unit 320 are installed on a fixed frame 510, and also include a first slide group 330 and a second slide group 340, the first sliding block 350 is connected to the first slide group 330, the first driving unit 310 drives the first slide group 330 to move so that the first sliding block 350 is lifted and lowered, and a first lifting block 370 for lifting the workpiece is fixed on the first sliding block 350, and the first lifting block 370 follows the first The sliding block 350 moves and rises and falls to lift the workpiece; the second driving unit 320 is connected to the second sliding group 340 and drives the second sliding group 340 to move, the second sliding group 340 is connected to the second lifting block 380, the roller 360 is rotatably installed on the upper end of the second lifting block 380, the second driving unit 320 drives the second sliding group 340 to move, the second sliding group 340 drives the second lifting block 380 to rise and fall, so that the roller 360 moves, and after the roller 360 rises to a certain height, it is processed in the groove 221, so that the outer surface of the roller 360 fits with the side of the workpiece to position the workpiece.

[0040] The first sliding group 330 includes a first slider 331 and a first sliding rail 332, the first slider 331 and the first sliding rail 332 are slidably connected, two first sliding rails 332 are arranged in parallel on the fixed frame 510, each first sliding rail 332 is slidably connected with a first slider 331, and the two first sliders 331 are fixed on the first sliding plate 333. The first driving unit 310 is connected to the first sliding plate 333 and drives the first sliding plate 333 to move. When the first sliding plate 333 moves, it drives the first sliding block 350 to rise and fall.

[0041] The first sliding plate 333 is provided with first guide rails 334 equal in number to the first sliding blocks 350 . The first guide rails 334 are arranged in parallel on the first sliding plate 333 . Each first guide rail 334 is slidably connected to a first sliding block 350 . When the first sliding plate 333 moves, it can drive all the first sliding blocks 350 to rise and fall. The lower end of the first sliding plate 333 extends out of the limited segment 335, and a first elastic member 336 is provided between the limited segment 335 and the bottom of the first sliding block 350. The limited segment 335 is provided with a downwardly recessed pit 3351 to position the first elastic member 336. One end of the first elastic member 336 extends into the pit 3351 and abuts against the limited segment 335, and the other end of the first elastic member 336 abuts against the lower end of the first sliding block 350. When the first sliding plate 333 rises, the first elastic member 336 is compressed and gives the first sliding block 350 an upward elastic force, and the first sliding block 350 moves upward to make the first lifting block 370 abut against the workpiece; refer to Figure 6 A limit frame 110 is provided above the conveying track 100, and a first cover plate 111 is provided on the top of the limit frame 110. When the first sliding block 350 continues to move upward under the drive of the first sliding group 330, under the elastic force of the first elastic member 336, the top of the first sliding block 350 abuts against the first cover plate 111, and the bottom of the first sliding block 350 fits with the top of the first lifting block 370, thereby realizing the positioning of the workpiece in the vertical direction; a second cover plate 112 is also provided on the side of the limit frame 110. Under the pressing action of the roller 360, the two sides of the workpiece are respectively fitted with the roller 360 and the second cover plate 112, thereby realizing the positioning of the workpiece in the front and rear directions.

[0042] The first slide group 330 also includes a guide column 337, which passes through the first limiting section 335 and is connected to the first sliding block 350. The first sliding block 350 can be lifted and lowered along the guide column 337 under the elastic force applied by the first elastic member 336, so that the first lifting block 370 can accurately support the workpiece and improve the positioning accuracy.

[0043] Reference Figure 7 The second slide group 340 includes a second slide block 341 and a second slide plate 342. Each first slide rail 332 is slidably connected with a second slide block 341. The two second slide blocks 341 are installed on the second slide plate 342. The second lifting block 380 is fixed on the second slide plate 342. The second slide plate 342 is connected to the second driving unit 320. The second driving unit 320 drives the second slide plate 342 to move along the first slide rail 332, so that the second lifting block 380 follows the movement of the second slide plate 342 to rise and fall.

[0044] Reference Figure 8 and Fig. 9 The hot melt mechanism is also provided with a second positioning portion 400, which includes a third driving unit 410, a transmission assembly 420 and a prying clamp 430. The transmission assembly 420 is connected to the third driving unit 410 and moves under the drive of the third driving unit 410. The prying clamp 430 is connected to the transmission assembly 420 and moves following the movement of the transmission assembly 420, so that the prying clamp 430 is close to the workpiece, thereby realizing the positioning of the workpiece and improving the processing accuracy.

[0045] The transmission assembly 420 includes a second sliding block 421, a follower unit 422 and a track block 423. The track block 423 is fixed on the mounting frame 520. The second sliding block 421 is connected to the prying clamp 430. When the second sliding block 421 moves, it can drive the prying clamp 430 to move so that the prying clamp 430 can resist the workpiece; the second driving unit 320 is connected to the first slide plate 213 and drives the first slide plate 213 to move. The first slide plate 213 is fixedly provided with a second guide rail. The second sliding block 421 is slidably connected to the second guide rail. The follower unit 422 is rotatably connected to the lower end of the second sliding block 421. When the first slide plate 213 moves, it drives the follower unit 422 to roll along the side of the track block 423; the transmission assembly 420 also includes a guide rod 424, which guides One end of the guide rod 424 is fixedly connected to the second sliding block 421, and a fixed block is also fixed on the second guide rail, and the guide rod 424 passes through the fixed block and is connected to the second sliding block 421; the transmission assembly 420 also includes a second elastic member 425, one end of the second elastic member 425 is abutted against the fixed block, and the other end of the second elastic member 425 is abutted against the end of the guide rod 424; as the follower unit 422 rolls along the track block 423, the second sliding block 421 moves along the second guide rail, and the second elastic member 425 is retracted and retracted along the guide rod 424 under the pressing action of the fixed block and the end of the guide rod 424, and the guide rod 424 is acted upon by the elastic force of the second elastic member 425, and the power transmission of the second sliding block 421 makes the clamp 430 close to the workpiece.

[0046] The side surface of the track block 423 is arc-shaped, and the width of the track block 423 gradually decreases in the direction close to the workpiece, so that the guide rod 424 is subjected to the elastic force of the second elastic member 425 in the direction close to the track block 423, thereby achieving the purpose of positioning the workpiece.

[0047] Reference Figure 6 The workpiece is subjected to the pressure of the clamp 430, so that the left and right sides of the workpiece are respectively pressed against the clamp 430 and the side wall of the processing groove 221; the workpiece is subjected to the pressure of the roller 360, so that the front and rear sides of the workpiece are respectively pressed against the roller 360 and the second cover plate 112; the workpiece is supported by the first lifting block 370, so that the upper and lower sides of the workpiece are respectively fitted with the first cover plate 111 and the first lifting block 370, so that the workpiece is in a fixed state, thereby ensuring the processing accuracy of the workpiece.

[0048] Reference Fig.10The conveying assembly 210 includes a fourth driving unit 211 and a third sliding block 212. The fourth driving unit 211 is connected to the first slide 213, and also includes a second slide 214. The second slide 214 is fixedly provided with a third guide rail 215. The third sliding block 212 is slidably connected to the third guide rail 215. The first slide 213 moves along the third guide rail 215 driven by the fourth driving unit 211; the pusher claw 220 is fixedly provided on the first slide 213 and arranged in sequence along the first slide 213. When the first slide 213 moves, it can drive the pusher claw 220 to move one station.

[0049] The movement process of the hot melt mechanism in the present invention is as follows:

[0050] The fourth driving unit 211 is actuated to drive the first slide plate 213 to move, and the pusher claw 220 follows the first slide plate 213 to move to the processing station; the second driving unit 320 is actuated to drive the second lifting block 380 to rise, so that the roller 360 enters the processing groove 221 to fit the workpiece and limit the front and rear sides of the workpiece; the first driving unit 310 is actuated to drive the first lifting block 370 to rise, and the first lifting block 370 resists the workpiece under the elastic force of the first elastic member 336 to limit the upper and lower surfaces of the workpiece; the third driving unit 410 is actuated, The second sliding block 421 is driven to move. Under the supporting action of the second elastic member 425, the second sliding block 421 makes the clamp 430 close to the workpiece to limit the left and right sides of the workpiece; the hot melt unit is actuated to process the workpiece in the processing groove 221; the first driving unit 310, the second driving unit 320, and the third driving unit 410 are retracted, and the fourth driving unit 211 is actuated to drive the workpiece to the next station for processing. The fourth driving unit 211 is retracted to continue to position the workpiece, and the above actions are repeated until all workpieces are processed.

[0051] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A hot melt mechanism, characterized in that: include: Multiple hot-melt parts for hot-melting the workpiece; Conveying track for placing workpieces; The conveying part includes a conveying component and N pushers connected to the conveying component, the pushers are distributed along the conveying track, the pushers include M processing grooves and NM positioning grooves, the processing grooves and the positioning grooves can accommodate workpieces, the conveying component can drive the pushers to move along the conveying track to drive the workpieces to move, the positions of the processing grooves on different pushers are different, the processing grooves do not repeat and replace the positions of the positioning grooves in sequence, each of the processing grooves corresponds to a position of the hot melt part, and the hot melt part hot melts the workpiece in the processing groove; each pusher is provided with a hot melt part The processing groove is replaced with the adjacent positioning groove in the same pusher claw along the feeding direction of the workpiece or the direction away from the workpiece; the first positioning part also includes a first driving unit, a first slide group and a first lifting block, the first slide group is connected to the first driving unit, and can be moved under the drive of the first driving unit to drive the first lifting block to move and press the workpiece; the conveying assembly includes a fourth driving unit and a slider, the slider is fixedly connected to the pusher claw, and the fourth driving unit drives the slider to move so that the pusher claw moves along the conveying track; Said N≥2, M≥1.

2. The hot melt mechanism according to claim 1, characterized in that: A limiting frame is provided on the conveying track, and the limiting frame includes a first limiting plate. A first elastic member is provided between the first lifting block and the first driving unit, and the first elastic member abuts against the first lifting block to make the workpiece close to the first limiting plate.

3. The hot melt mechanism according to claim 1, characterized in that: It also includes a first positioning part, which includes a second driving unit, a second sliding group and a second lifting block. The second sliding group is connected to the second driving unit and can drive the second lifting block to move. The end of the second lifting block is rotatably connected to a roller, and the surface of the roller can be close to the workpiece.

4. The hot melt mechanism according to claim 3, characterized in that: A limiting frame is provided on the conveying track, and the limiting frame includes a second limiting plate. The workpiece can be pressed against the second limiting plate under the supporting action of the roller.

5. The hot melt mechanism according to claim 1, characterized in that: It also includes a second positioning part, which includes a third driving unit, a transmission assembly and a prying clamp. The third driving unit drives the transmission assembly to move. The prying clamp is connected to the transmission assembly and moves with the transmission assembly so that the prying clamp presses the workpiece.

6. The hot melt mechanism according to claim 5, characterized in that: The transmission assembly comprises a sliding block, a follower unit and a track block. The sliding block is connected to the clamp, and the follower unit can move along the edge of the track block to move the sliding block.

7. The hot melt mechanism according to claim 6, characterized in that: The transmission assembly further comprises a second elastic member, which is driven by the follower unit to expand and contract to resist the sliding block so as to make the clamp close to the workpiece.

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