Plastic welding machine

Abstract

The utility model discloses a plastic welding machine, which relates to the technical field of plastic processing and comprises a welding platform bottom box, a placing mechanism is arranged on the front side of the top of the welding platform bottom box, a welding driving support is fixedly mounted on the rear side of the top of the welding platform bottom box, and a hydraulic push rod is arranged in the welding driving support. And a heating pressing block is fixedly installed at the output end of the bottom of the hydraulic push rod, two sliding rods are fixedly installed on the front side of the top of the welding platform bottom box, limiting discs are fixedly installed at the top ends of the two sliding rods, and sliding plates are slidably installed on the outer walls of the two sliding rods. According to the utility model, the isosceles triangular plate, the reset spring, the through square hole, the die frame, the blanking plate and the connecting tension spring are matched with one another, so that the pressed welding piece can be automatically ejected without manual operation, and meanwhile, the welding piece adhered to the bottom of the heating pressing block can be automatically scraped off after being pressed every time, so that the production efficiency is improved. Therefore, the discharging efficiency of the plastic welding machine is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic processing, in particular to a plastic welding machine. Background Art

[0002] Plastic welding machine is a device used to melt and bond plastic materials together, including heating system, pressure system, control system, etc. The heating system is used to heat the plastic material to melt it, the pressure system is used to apply pressure to press the molten material together, and the control system is used to monitor and control the entire welding process to achieve an efficient, fast and reliable bonding process, improve production efficiency, and ensure product quality and stability. The existing technology has the following problems:

[0003] Chinese patent document CN220594116U discloses a plastic welding machine, which relates to the technical field of plastic welding machines. The plastic welding machine includes a chassis, a rotating disk is arranged on the chassis, and the rotating shaft of the rotating disk is matched and connected with a bearing with a seat installed on the chassis; a plurality of locking cavities convenient for locking with a quick lock pin are opened on the rotating disk; in the utility model, the fixed plate is locked in the locking cavity of the rotating disk by a quick lock pin, and when changing different molds, the mold and the rotating disk can be separated by rotating the quick lock pin half a circle, which is convenient and fast to use, and the mold cavity carries the welding piece, and the upper limit frame limits the cover piece welded with the welding piece to prevent it from shifting and causing the problem of poor welding quality. After the welding is completed, there will be a certain residual temperature above the welding piece, and the staff can press the toggle plate, and the other end of the toggle plate connected to the mold cavity through the rotating shaft will be tilted, and the bottom of the welding piece will be lifted up, which is convenient for the staff to collect, and effectively improves work efficiency and safety.

[0004] Although the above-mentioned document can lift up the bottom of the welded part by pressing the toggle plate to lift up the other end of the toggle plate movably connected to the mold cavity through the rotating shaft, making it convenient for the staff to collect it, since there are many molds on the rotating disk, it is necessary to manually press the toggle plate to remove the welded part each time, which is manpower-consuming and has low material collection efficiency. At the same time, after the welded part is subjected to high-temperature welding by the heating block, it is easy to adhere to the bottom of the heating block and be lifted up, resulting in unsmooth material dropping, affecting the processing progress and reducing work efficiency. At the same time, because there are many molds on the top of the rotating disk, and each mold requires four quick locking pins for disassembly and assembly, when the mold is disassembled and replaced, all the quick locking pins on multiple molds need to be removed one by one, resulting in low mold disassembly and assembly efficiency. Utility Model Content

[0005] The utility model provides a plastic welding machine to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A plastic welding machine comprises a welding platform bottom box, a placing mechanism is arranged on the top front side of the welding platform bottom box, a welding drive bracket is fixedly installed on the top rear side of the welding platform bottom box, a hydraulic push rod is arranged inside the welding drive bracket, a heating block is fixedly installed on the bottom output end of the hydraulic push rod, two sliding rods are fixedly installed on the top front side of the welding platform bottom box, limiting disks are fixedly installed on the top ends of the two sliding rods, slide plates are slidably installed on the outer walls of the two sliding rods, and an isosceles triangle is fixedly installed on the top of the slide plate The plate has three return springs evenly fixedly installed on one side of the slide away from the isosceles triangle plate, and the three return springs are fixedly connected to the top of the bottom box of the welding platform. The placement mechanism includes a rotating disk, and the rotating disk has four through-holes in an annular array. The top annular array of the rotating disk is provided with four mold frames, and the inner circles of the four mold frames are vertically connected with the inner circles of the four through-holes. The inner circles of the four mold frames are fixedly installed with limited square frames, and the top of the isosceles triangle plate penetrates to the inner circle of the mold frame on the front side of the top of the rotating disk.

[0008] A further improvement of the technical solution of the utility model is that: an extension plate is fixedly installed on one side of the four mold frames, and a blanking plate is movably installed on the other end of the extension plate. When one of the mold frames moves to the bottom of the heating block, the blanking plate is located on the right side of the heating block, and a connecting tension spring is fixedly installed under one side of the blanking plate close to the mold frame, and the other end of the connecting tension spring is fixedly connected to one side of the mold frame close to the blanking plate.

[0009] A further improvement of the technical solution of the utility model is that the outer wall of the mold frame except the side where the blanking plate is located is fixedly installed with a material blocking inclined plate, and the three material blocking inclined plates are all higher than the top of the mold frame.

[0010] A further improvement of the technical solution of the utility model is that a reducer is fixedly installed on the top of the inner wall of the bottom box of the welding platform, a rotary drive motor is fixedly installed on the rear side of the reducer, and the top output end of the reducer passes through the top of the bottom box of the welding platform and is fixedly connected to the bottom center of the rotating disk.

[0011] A further improvement of the technical solution of the utility model lies in that four groups of two mirror-distributed positioning boxes are fixedly installed on the top annular array of the rotating disk, the four groups of two positioning boxes are respectively located on both sides of the through square hole, and a snap groove is provided on one side of the mold frame close to the two mirror-distributed positioning boxes, and the opposite surfaces of the two mirror-distributed positioning boxes are provided with inclined snaps, which are snapped into the snap grooves.

[0012] A further improvement of the technical solution of the utility model is that a snap spring is fixedly installed on the side of the inner wall of the positioning box away from the mold frame, and a snap base plate is fixedly installed on the other end of the snap spring, and the snap base plate is slidably connected to the inner cavity of the positioning box, and the end of the inclined snap away from the mold frame penetrates into the inner cavity of the positioning box and is fixedly connected to the other side of the snap base plate, and a connecting rope is fixedly connected to the center of one side of the snap base plate close to the snap spring, and the connecting rope is located on the inner side of the snap spring, and the other end of the connecting rope penetrates to the side of the positioning box away from the mold frame and is fixedly installed with a disassembly pull block.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] 1. The utility model provides a plastic welding machine. Through the cooperation between an isosceles triangle plate, a reset spring, a through square hole, a mold frame, a blanking plate, and a connecting tension spring, a pressed welded piece can be automatically ejected without human operation. At the same time, after each welded piece is pressed, the welded piece stuck to the bottom of the heating pressing block can be automatically scraped off, thereby significantly improving the discharge efficiency of the plastic welding machine.

[0015] 2. The utility model provides a plastic welding machine. Through the mutual cooperation among the mold frame, the buckle groove, the positioning box, and the inclined buckle, the mold frame can be quickly pressed and fixed, and the installation between the rotating disk is completed. At the same time, only two disassembly pull blocks need to be pulled at the same time to remove one of the mold frames, thereby saving disassembly and assembly time and improving the disassembly and assembly efficiency of the plastic welding machine mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the placement mechanism of the structure of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the welding platform of the utility model structure;

[0019] Figure 4 It is a schematic diagram of the rotating disk of the utility model structure;

[0020] Figure 5 It is a cross-sectional schematic diagram of the positioning box of the utility model structure.

[0021] In the figure: 1. welding platform bottom box; 11. sliding rod; 12. limiting plate; 13. sliding plate; 14. reset spring; 15. isosceles triangle plate; 16. reducer; 17. rotary drive motor; 2. placing mechanism; 21. rotating disk; 211. positioning box; 2111. inclined buckle; 212. buckle spring; 213. buckle bottom plate; 214. connecting rope; 215. disassembly pull block; 22. through square hole; 23. mold frame; 231. buckle groove; 24. limiting square frame; 25. blocking inclined plate; 26. extension plate; 27. unloading plate; 28. connecting tension spring; 3. welding drive bracket; 4. hydraulic push rod; 5. heating block. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 , Figure 2 As shown, the utility model provides a plastic welding machine, including a welding platform bottom box 1, a placing mechanism 2 is arranged on the top front side of the welding platform bottom box 1, a welding drive bracket 3 is fixedly installed on the top rear side of the welding platform bottom box 1, a hydraulic push rod 4 is arranged inside the welding drive bracket 3, a heating pressing block 5 is fixedly installed on the bottom output end of the hydraulic push rod 4, two sliding bars 11 are fixedly installed on the top front side of the welding platform bottom box 1, a limiting disk 12 is fixedly installed on the top of the two sliding bars 11, a slide plate 13 is slidably installed on the outer wall of the two sliding bars 11, an isosceles triangle plate 15 is fixedly installed on the top of the slide plate 13, three return springs 14 are evenly fixedly installed on the side of the slide plate 13 away from the isosceles triangle plate 15, and the three return springs 14 are fixedly connected to the top of the welding platform bottom box 1, the placing mechanism 2 includes a rotating disk 21, and the rotating disk 21 has four through square holes 22 in an annular array, and the top of the rotating disk 21 has four The mold frame 23, the inner circles of the four mold frames 23 are connected with the inner circles of the four through square holes 22 up and down, the inner circles of the four mold frames 23 are fixedly installed with the limited square frame 24, the top of the isosceles triangle plate 15 penetrates to the inner circle of the mold frame 23 on the front side of the top of the rotating disk 21, and one side of the four mold frames 23 is fixedly installed with an extension plate 26, and the other end of the extension plate 26 is movably installed with a blanking plate 27. When one of the mold frames 23 moves to the bottom of the heating block 5, the blanking plate 27 is located on the right side of the heating block 5, and after the heating block 5 moves to the top and completes the pressing, the blanking plate 27 is slightly higher than the heating block 5. A connecting tension spring 28 is fixedly installed below the side of the blanking plate 27 close to the mold frame 23, and the other end of the connecting tension spring 28 is fixedly connected to the side of the mold frame 23 close to the blanking plate 27. Except for the side where the blanking plate 27 is located, the rest of the outer wall of the mold frame 23 is fixedly installed with a blocking inclined plate 25, and the three blocking inclined plates 25 are all higher than the top of the mold frame 23;

[0024] The welding piece can be directly placed on the top of the inner limiting frame 24 of the mold frame 23 closest to the top right side of the rotating disk 21. When the rotating disk 21 rotates normally, it will squeeze the top of the isosceles triangle plate 15, so that the return spring 14 at the bottom of the slide plate 13 is compressed. Once the mold frame 23 with the welded piece pressed inside moves above the isosceles triangle plate 15, the isosceles triangle plate 15 can move upward stably by sliding the slide plate 13 on the outer wall of the slide bar 11 under the rebound effect of the three return springs 14. After the top end of the isosceles triangle plate 15 passes through the through square hole 22, the welding piece located on the limiting frame 24 is automatically lifted up, so that it can be directly removed. At the same time, when the isosceles triangle plate 15 rebounds upward, the slide bar 11 can also be used to The limiting disk 12 at the top prevents it from falling off, and then the mold frame 23 with the welded piece removed can continue to move to the right side of the bottom box 1 of the welding platform under the rotation of the rotating disk 21, so as to continue to place new welded pieces, and each time the mold frame 23 passes through the heating block 5, the blanking plate 27 will squeeze the right side of the heating block 5, and then tilt, and scrape off the welded piece stuck to the bottom of the heating block 5. At the same time, the blanking plate 27 can be reset under the action of the connecting tension spring 28 after it has completely passed through the heating block 5. At the same time, the welded piece scraped off by the blanking plate 27 under the heating block 5 will fall directly onto the top of the mold frame 23, and will be protected by the three material blocking inclined plates 25 on the outer wall of the mold frame 23 to prevent it from falling out of the mold frame 23.

[0025] like Figure 3 As shown, a reducer 16 is fixedly installed on the top of the inner wall of the bottom box 1 of the welding platform, and a rotary drive motor 17 is fixedly installed on the rear side of the reducer 16. The top output end of the reducer 16 penetrates to the top of the bottom box 1 of the welding platform and is fixedly connected to the bottom center of the rotating disk 21;

[0026] By rotating the drive motor 17 to drive the reducer 16 to drive the overall rotating disk 21 to rotate slowly clockwise, and by setting the start and stop time in advance, the mold frame 23 is controlled to be accurately located below the heating block 5, and the hydraulic push rod 4 in the welding drive bracket 3 can be used to drive the heated heating block 5 to move downward, and the welding parts moved to the inner circle of the mold frame 23 below are pressed and welded.

[0027] like Figure 4 , Figure 5As shown, four groups of two mirror-distributed positioning boxes 211 are fixedly installed in an annular array on the top of the rotating disk 21. The four groups of two positioning boxes 211 are respectively located on both sides of the through square hole 22, and the mold frame 23 is provided with a buckle groove 231 on one side close to the two mirror-distributed positioning boxes 211. The opposite surfaces of the two mirror-distributed positioning boxes 211 are provided with an inclined buckle 2111, and the inclined buckle 2111 is engaged with the buckle groove 231. A buckle spring 212 is fixedly installed on the inner wall of the positioning box 211 away from the mold frame 23. The other side of the buckle spring 212 A snap base plate 213 is fixedly installed at one end, and the snap base plate 213 is slidably connected to the inner cavity of the positioning box 211. One end of the inclined snap 2111 away from the mold frame 23 penetrates into the inner cavity of the positioning box 211 and is fixedly connected to the other side of the snap base plate 213. A connecting rope 214 is fixedly connected to the center of one side of the snap base plate 213 close to the snap spring 212. The connecting rope 214 is located on the inner side of the snap spring 212. The other end of the connecting rope 214 penetrates to the side of the positioning box 211 away from the mold frame 23 and is fixedly installed with a disassembly pull block 215.

[0028] When the four mold frames 23 are installed on the rotating disk 21, they can be directly aligned with the positioning boxes 211 on both sides of the through square hole 22 and snapped downward, and slightly adjusted left and right to successfully make the inclined buckles 2111 in the two positioning boxes 211 use the buckle bottom plate 213 to squeeze the buckle spring 212 to generate the rebound force, so as to smoothly snap into the buckle groove 231 to limit the mold frame 23. Because the heating pressing block 5 only generates downward pressure on the mold frame 23, the clamping and fixing of the mold frame 23 can also maintain stability. When the mold frame 23 needs to be disassembled, it is only necessary to pull the disassembly pull block 215 on one side of the positioning boxes 211 on both sides of the mold frame 23, thereby using the connecting rope 214 to pull the buckle bottom plate 213, so that the inclined buckle 2111 is separated from the buckle groove 231 opened in the mold frame 23, and the limitation on the mold frame 23 is released, and the mold frame 23 can be successfully removed.

[0029] The following is a detailed description of the working principle of the plastic welding machine.

[0030] like Figure 1-5As shown, when in use, the operator can be located at the right front of the bottom box 1 of the welding platform, and then place the welding piece on the top of the inner ring limit frame 24 of the mold frame 23 closest to the right side of the top of the rotating disk 21, and then drive the reducer 16 by the rotating drive motor 17 to drive the entire rotating disk 21 to rotate slowly clockwise, and by setting the start and stop time in advance, the mold frame 23 is controlled to be accurately located below the heating block 5, and the hydraulic push rod 4 in the welding drive bracket 3 can be used to drive the heated heating block 5 to move downward, and the welding piece moved to the inner ring of the mold frame 23 below is pressed and welded. When the rotating disk 21 rotates normally, it will squeeze the top of the isosceles triangle plate 15, so that the slide plate 1 The return spring 14 at the bottom is compressed. Once the mold frame 23 with the welded piece pressed inside moves to the top of the isosceles triangle plate 15, the isosceles triangle plate 15 can move upward stably by sliding the slide plate 13 on the outer wall of the slide bar 11 under the rebound effect of the three return springs 14. The top of the isosceles triangle plate 15 passes through the through square hole 22 to automatically lift the welded piece on the limiting square frame 24, so that it can be directly removed. At the same time, when the isosceles triangle plate 15 rebounds upward, the limiting plate 12 at the top of the slide bar 11 can also be used to prevent it from falling off. Then, the mold frame 23 with the welded piece removed can continue to move to the right side of the bottom box 1 of the welding platform under the rotation of the rotating plate 21, so as to continue to place new welded pieces. The mold frame 23 is provided with a plurality of mold parts, and each time the mold frame 23 passes through the heating block 5, the blanking plate 27 will squeeze the right side of the heating block 5, and then tilt, and scrape off the welding parts stuck to the bottom of the heating block 5. At the same time, the blanking plate 27 can be reset under the action of the connecting tension spring 28 after completely passing through the heating block 5. At the same time, the welding parts scraped off by the blanking plate 27 under the heating block 5 will fall directly on the top of the mold frame 23, and will be protected by the three material blocking inclined plates 25 on the outer wall of the mold frame 23 to prevent them from falling out of the mold frame 23. At the same time, when the four mold frames 23 are installed with the rotating disk 21, they can be directly aligned with the positioning boxes 211 on both sides of the through-square hole 22 and inserted downward, and slightly adjusted left and right. The inclined buckles 2111 in the two positioning boxes 211 successfully utilize the buckle bottom plate 213 to squeeze the buckle spring 212 to generate the rebound force, so that they are smoothly clipped into the buckle groove 231, thereby limiting the mold frame 23. Moreover, because the heating pressing block 5 only generates downward pressure on the mold frame 23, the clamping and fixing of the mold frame 23 can also maintain stability. When the mold frame 23 needs to be disassembled, it is only necessary to pull the disassembly pull block 215 on one side of the positioning boxes 211 on both sides of the mold frame 23, thereby using the connecting rope 214 to pull the buckle bottom plate 213, so that the inclined buckle 2111 is disengaged from the buckle groove 231 opened in the mold frame 23, thereby releasing the limitation on the mold frame 23, and the mold frame 23 can be successfully removed.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A plastic welding machine, comprising a welding platform bottom box (1), characterized in that: A placing mechanism (2) is arranged on the top front side of the welding platform bottom box (1), a welding drive bracket (3) is fixedly installed on the top rear side of the welding platform bottom box (1), a hydraulic push rod (4) is arranged inside the welding drive bracket (3), a heating block (5) is fixedly installed on the bottom output end of the hydraulic push rod (4), two sliding bars (11) are fixedly installed on the top front side of the welding platform bottom box (1), a limiting disk (12) is fixedly installed on the top of the two sliding bars (11), a slide plate (13) is slidably installed on the outer wall of the two sliding bars (11), an isosceles triangle plate (15) is fixedly installed on the top of the slide plate (13), and the slide plate (13) is away from the isosceles triangle. Three return springs (14) are evenly fixedly installed on one side of the plate (15), and the three return springs (14) are fixedly connected to the top of the bottom box (1) of the welding platform. The placement mechanism (2) includes a rotating disk (21), and the rotating disk (21) is provided with four through square holes (22) in an annular array. The top of the rotating disk (21) is provided with four mold frames (23) in an annular array. The inner circles of the four mold frames (23) are vertically connected with the inner circles of the four through square holes (22). The inner circles of the four mold frames (23) are fixedly installed with a limiting square frame (24). The top end of the isosceles triangle plate (15) passes through the inner circle of the mold frame (23) on the front side of the top of the rotating disk (21).

2. A plastic welding machine according to claim 1, characterized in that: An extension plate (26) is fixedly installed on one side of the four mold frames (23), and a blanking plate (27) is movably installed on the other end of the extension plate (26). When one of the mold frames (23) moves to the bottom of the heating block (5), the blanking plate (27) is located on the right side of the heating block (5). A connecting tension spring (28) is fixedly installed below the side of the blanking plate (27) close to the mold frame (23), and the other end of the connecting tension spring (28) is fixedly connected to the side of the mold frame (23) close to the blanking plate (27).

3. A plastic welding machine according to claim 2, characterized in that: The outer wall of the mold frame (23) except the side where the blanking plate (27) is located is fixedly mounted with material blocking inclined plates (25), and the three material blocking inclined plates (25) are all higher than the top of the mold frame (23).

4. A plastic welding machine according to claim 1, characterized in that: A reducer (16) is fixedly mounted on the top of the inner wall of the welding platform bottom box (1), a rotary drive motor (17) is fixedly mounted on the rear side of the reducer (16), and the top output end of the reducer (16) penetrates the top of the welding platform bottom box (1) and is fixedly connected to the bottom center of the rotating disk (21).

5. The plastic welding machine according to claim 1, characterized in that: Four groups of two mirror-distributed positioning boxes (211) are fixedly mounted in an annular array on the top of the rotating disk (21), and the four groups of two positioning boxes (211) are respectively located on both sides of the through square hole (22), and a buckle groove (231) is provided on one side of the mold frame (23) close to the two mirror-distributed positioning boxes (211), and an inclined buckle (2111) is provided on the opposite surfaces of the two mirror-distributed positioning boxes (211), and the inclined buckle (2111) is buckled with the buckle groove (231).

6. A plastic welding machine according to claim 5, characterized in that: A snap spring (212) is fixedly mounted on one side of the inner wall of the positioning box (211) away from the mold frame (23); a snap base plate (213) is fixedly mounted on the other end of the snap spring (212); the snap base plate (213) is slidably connected to the inner cavity of the positioning box (211); one end of the inclined snap (2111) away from the mold frame (23) penetrates into the inner cavity of the positioning box (211) and is fixedly connected to the other side of the snap base plate (213); a connecting rope (214) is fixedly connected to the center of one side of the snap base plate (213) close to the snap spring (212); the connecting rope (214) is located on the inner side of the snap spring (212); the other end of the connecting rope (214) penetrates into the side of the positioning box (211) away from the mold frame (23) and is fixedly mounted with a disassembly pull block (215).

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