Plastic hot melting and pressing device

Abstract

The utility model belongs to the technical field of plastic processing, and particularly relates to a plastic hot melting pressing device which comprises a pressing machine body, a second mounting plate is arranged in the pressing machine body, a lower mold is arranged on the end face of the second mounting plate, movable mounting shells are arranged on the two sides of the lower mold in a sliding mode, and clamping blocks are arranged in the movable mounting shells in a sliding mode. By arranging the movable mounting shell, the clamping block and other structures, a plastic product can be fixed, the plastic product is separated from the upper die, and therefore the stripping efficiency of the die is improved, and by arranging the refrigeration piece, the air hole and other structures, the stripping efficiency of the die is improved. According to the device, the lower mold can be preheated, plastic can be cooled, the heating efficiency of the lower mold can be improved, meanwhile, the solidification efficiency of the plastic mold can be improved, workers are prevented from being scalded, and the overall safety of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of plastic processing technology, and in particular relates to a plastic hot melt pressing device. Background Technology

[0002] In the production process of plastic products, it is often necessary to assemble two pre-made parts into one. However, they are usually not assembled through mechanical structures. To save costs, the common practice is to heat-melt the two parts, taking advantage of the property of plastic to soften when heated, so that the two parts are automatically bonded together.

[0003] Patent CN213035302U discloses an adjustable hot melt pressing device, specifically relating to the field of hot melt pressing. It includes a base with an adjustment mechanism fixedly mounted on its top. The adjustment mechanism includes a rotating platform fixedly connected to the base. An adjustment plate is fixedly mounted on the top of the rotating platform, a fixed plate is fixedly mounted on the top of the adjustment plate, a top plate is fixedly mounted on the top of the fixed plate, a hydraulic rod is fixedly mounted on the bottom of the top plate, a pressure plate is fixedly mounted on the bottom of the hydraulic rod, and a positioning cylinder is fixedly mounted on the bottom of the pressure plate. A first spring is fixedly mounted inside the positioning cylinder. This invention, by setting an adjustment mechanism, allows the rotating platform to drive the adjustment plate to perform multi-angle adjustment, enabling coordinated hot melt pressing at multiple angles, improving overall coordination and enhancing the quality of the hot melt pressing.

[0004] In the existing technology, the pressing angle can be adjusted by setting an adjustment mechanism, but the following problems still exist in the overall use: First, the existing hot melt pressing device presses the plastic with upper and lower molds, but after the heated mold presses the plastic, it will cause the plastic to stick to the inner wall of the upper mold, affecting the efficiency of loading and unloading; Second, the existing hot melt pressing device does not have the function of cooling the plastic product after pressing, resulting in low solidification efficiency of the plastic and easy burns to the workers. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a plastic hot melt pressing device. By incorporating a movable mounting shell and clamping blocks, it can fix the plastic product, allowing the plastic product to detach from the upper mold, thereby improving the mold's unloading efficiency. The rubber pads cushion the clamping blocks during product clamping, preventing damage and improving production quality. Furthermore, the cooling plates and vents not only preheat the lower mold but also cool the plastic, improving both the heating efficiency of the lower mold and the solidification efficiency of the plastic mold, preventing burns to workers and enhancing the overall safety of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic hot melt pressing device, comprising a pressing machine body, a second mounting plate disposed inside the pressing machine body, a lower mold disposed on the end face of the second mounting plate, movable mounting shells slidably disposed on both sides of the lower mold, clamping blocks slidably disposed inside the two movable mounting shells, the two clamping blocks being able to fix the product after molding, an air hole disposed at one end of the clamping block being able to cool the product, an air cavity disposed inside the second mounting plate being able to preheat the lower mold, a first mounting plate slidably disposed inside the pressing machine body, an upper mold disposed on the bottom end face of the first mounting plate, and a heat dissipation component disposed inside the first mounting plate.

[0007] Preferably, both of the movable mounting shells are provided with cooling plates inside, and a second fan is provided on one side of each of the two cooling plates. An air outlet is provided on one side of the second fan on the outer surface of the movable mounting shell, and the air outlet communicates with the interior of the air chamber.

[0008] Preferably, a first fan is provided on the other side of each of the two cooling chips, and the air outlets of the two first fans are respectively connected to the interior of the clamping block.

[0009] Preferably, two sliding grooves are symmetrically arranged on the end face of the second mounting plate, and a slider is slidably arranged inside each of the two sliding grooves. The two sliders are respectively fixedly connected to the bottom end face of the two movable mounting shells, and a buffer spring is provided between the two sliders and the inner wall of the sliding groove.

[0010] Preferably, each of the two movable mounting shells is provided with a drive slide rod on its end face, a drive block is slidably provided on the outer circular surface of each of the two drive slide rods, a rotating rod is rotatably provided at one end of each of the two drive blocks, a rotating shaft is rotatably provided inside each of the two rotating rods, and the two rotating shafts are fixedly connected to the inner wall of the pressing machine body.

[0011] Preferably, one end of each of the two rotating rods is provided with an adaptation groove, and a connecting seat is slidably disposed inside each of the two adaptation grooves. Both connecting seats are fixedly connected to the outer surface of the first mounting plate.

[0012] Preferably, the heat dissipation component includes a copper pipe disposed inside the first mounting plate, the copper pipe being attached to the upper end face of the mold, a water tank being disposed above the copper pipe inside the pressing machine body, one end of the copper pipe being connected to the water tank, a water pump being disposed at one end of the water tank, and the water pump being connected to the other end of the copper pipe.

[0013] Preferably, the top end face of the first mounting plate is provided with an air hole, an air bag is provided above the air hole inside the pressing machine body, and a nozzle is provided at the bottom of the air bag, the nozzle being able to blow air to cool the air hole.

[0014] Preferably, a rubber pad is provided between each of the two clamping blocks and the first fan, and the rubber pad can cushion the clamping blocks.

[0015] In summary, compared with existing technologies, the beneficial effects of this solution are as follows:

[0016] (1) By setting a movable mounting shell and clamping block, as well as a rotating rod and rotating shaft, the movable mounting shell can move towards the center to clamp the plastic after the upper mold heat-melts and presses the plastic, thereby fixing the plastic product and separating the plastic product from the upper mold, preventing the plastic product from sticking to the inside of the upper mold, thereby improving the mold's unloading efficiency. At the same time, by setting clamping block and air holes, the friction between the clamping block and the plastic can be increased, improving the fixing effect. By setting rubber pads, the clamping block can be buffered when clamping the plastic product, preventing the clamping block from damaging the plastic product, thereby improving production quality.

[0017] (2) By setting up a cooling plate and air hole, as well as a second fan and air chamber, this utility model can not only guide the heat generated by the cooling plate to the interior of the air chamber to preheat the lower mold, but also discharge the cold air generated on the other side of the cooling plate to the plastic through the first fan to cool the plastic. This can improve the heating efficiency of the lower mold, improve the solidification efficiency of the plastic mold, prevent burns to workers, and improve the overall safety of the device.

[0018] (3) By setting up structures such as airbags, copper tubes and air holes, the first mounting plate can squeeze the airbag while being lifted, and blow the air inside the airbag onto the surface of the copper tube through the nozzle to dissipate heat from the copper tube and improve the cooling effect of the copper tube. The copper tube can perform hot and cold replacement on the upper mold to reduce the temperature of the upper mold, which can prevent the upper mold from overheating after frequent heating, thereby improving the service life of the upper mold. In addition, by cooling the upper mold, the temperature of the contact surface between the upper mold and the plastic can be reduced, thereby improving the plastic stripping efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0020] Figure 2 This is a side view of the present invention;

[0021] Figure 3 for Figure 2 A three-dimensional sectional view at point AA;

[0022] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0023] Figure 5 This is a front view of the present invention;

[0024] Figure 6 for Figure 5 A magnified view of a section at point C;

[0025] Figure 7 for Figure 3 A magnified view of a section at point D;

[0026] In the diagram: 10 pressing machine body, 11 movable plate, 12 guide rod, 13 first mounting plate, 14 upper mold, 15 air bag, 16 second mounting plate, 17 lower mold, 18 movable mounting shell, 19 cooling plate, 20 first fan, 21 clamping block, 22 air hole, 23 rubber pad, 24 second fan, 25 air outlet, 26 air chamber, 27 sliding groove, 28 buffer spring, 29 slider, 30 drive sliding rod, 31 drive block, 32 rotating rod, 33 rotating shaft, 34 nozzle, 35 adapting groove, 36 connecting seat, 37 copper pipe, 38 air hole, 39 water tank, 40 water pump. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example 1:

[0028] refer to Figure 1 and Figure 2A plastic hot melt pressing device includes a pressing machine body 10. A drive cylinder is installed inside the pressing machine body 10, with its output end extending into the pressing machine body 10. A movable plate 11 is installed at one end of the output end. Multiple guide rods 12 are slidably arranged inside the movable plate 11 and are fixedly connected to the pressing machine body 10. A first mounting plate 13 is installed below the movable plate 11 and is fixedly connected to the movable plate 11 by fixing bolts. A heating device is installed on the end face of the first mounting plate 13. It should be noted that the heating device is prior art and not an innovation of this invention. The heating device only needs to heat the mold. The specific electrical connection structure and electrical control method are not described in detail here. This solution does not impose too many restrictions. The bottom end face of the first mounting plate 13 is provided with an upper mold 14. Below the upper mold 14, inside the pressing machine body 10, a second mounting plate 16 is provided. The end face of the second mounting plate 16 is provided with a lower mold 17. When pressing plastic, the plastic is placed on the end face of the lower mold 17, the heating device is activated, and the heating device heats the upper mold 14. Then, the drive cylinder is activated, and the drive cylinder pushes the upper mold 14 at the bottom of the first mounting plate 13 downward, so that the upper mold 14 and the lower mold 17 at the bottom are pressed together, thereby performing hot melt pressing on the plastic. A heat dissipation component is provided inside the first mounting plate 13 to dissipate heat and cool down the plastic after hot pressing.

[0029] Movable mounting shells 18 are slidably provided on both sides of the lower mold 17. The two movable mounting shells 18 can slide relative to each other on the surface of the lower mold 17, thereby fixing the interior of the lower mold 17 and the pressed plastic product, preventing the plastic from sticking to the interior of the upper mold 14. Clamping blocks 21 are slidably provided inside the two movable mounting shells 18, and the two clamping blocks 21 can fix the product after molding.

[0030] Further reference Figure 2 , Figure 3 and Figure 4Both movable mounting shells 18 have vents on their end faces, allowing room temperature air to enter. Each mounting shell 18 contains a cooling element 19. This cooling element 19 is existing technology and contains two different semiconductor materials. When direct current passes through a circuit composed of these two different semiconductor materials (typically N-type and P-type semiconductors), heat absorption or release occurs at the junction (node) between the two materials. This allows the cooling element 19 to cool one side and heat the other side when it comes into contact with the internal air. The specific formation method and... The electrical connection structure will not be elaborated upon in this solution. A second fan 24 is installed on one side of each of the two cooling elements 19. The heating side of the cooling element 19 faces the air inlet of the second fan 24. An air outlet 25 is provided on one side of the second fan 24 on the outer surface of the movable mounting housing 18. An air chamber 26 is provided inside the second mounting plate 16. The air outlet 25 and the air chamber 26 are connected by a flexible hose. After the cooling element 19 is activated, the heat generated on one side of the cooling element 19 is then activated by the second fan 24, which dissipates the heat through the air outlet 25. The air chamber 26 preheats the lower mold 17, increasing its heating efficiency. Each of the two cooling plates 19 has a first fan 20 on its cooling side. The outlets of the two first fans 20 are connected to the interior of the clamping block 21. The clamping end of the clamping block 21 has a groove, which increases the friction between the clamping block 21 and the plastic, improving the fixing effect. Rubber pads 23 are placed between each clamping block 21 and the first fan 20, providing support for the clamping block 21. 1. Buffer: This setting prevents the clamping block 21 from damaging the surface of the plastic when clamping it, thereby improving the processing quality. One end of the clamping block 21 is provided with an air hole 22. After the plastic product is pressed, the cooling plate 19 and the first fan 20 are activated. The first fan 20 delivers the cold air generated on the other side of the cooling plate 19 to the inside of the clamping block 21 and sprays it out through the air hole 22. This setting can cool the surface of the plastic, increase the solidification time of the plastic, and at the same time prevent the plastic from burning the workers, thus improving the safety of the device.

[0031] Further reference Figure 2 , Figure 3 and Figure 4 Two sliding grooves 27 are symmetrically arranged on the end face of the second mounting plate 16. A slider 29 is slidably arranged inside each of the two sliding grooves 27. The two sliders 29 are fixedly connected to the bottom end faces of the two movable mounting shells 18 respectively. A buffer spring 28 is provided between the two sliders 29 and the inner wall of the sliding groove 27. When the movable mounting shell 18 moves, it will drive the slider 29 to move, so that the slider 29 slides along the sliding groove 27. By setting the sliding groove 27, the movement direction of the movable mounting shell 18 can be restricted, and by setting the buffer spring 28, the slider 29 can be elastically supported, so that the slider 29 slides more smoothly.

[0032] Further reference Figure 5 and Figure 6 Each of the two movable mounting shells 18 has a drive slide rod 30 on its end face. A drive block 31 is slidably mounted on the outer surface of each drive slide rod 30. A rotating rod 32 is rotatably mounted at one end of each drive block 31. A rotating shaft 33 is rotatably mounted inside each rotating rod 32. Both rotating shafts 33 are fixedly connected to the inner wall of the pressing machine body 10. An adaptation groove 35 is provided at one end of each rotating rod 32. A connecting seat 36 is slidably mounted inside each adaptation groove 35. Both connecting seats 36 are fixedly connected to the outer surface of the first mounting plate 13. When pressing the plastic, the first mounting plate 13 moves downwards, causing the upper mold 14 at the bottom to move to the top of the lower mold 17, thereby pressing the plastic on the end face of the lower mold 17. When the material is pressed together, the first mounting plate 13 moves, which drives the two connecting seats 36 to move downward, and the two connecting seats 36 slide inside the adaptation groove 35 respectively. When sliding, the connecting seat 36 presses one end of the rotating rod 32, causing the rotating rod 32 to rotate around the rotating shaft 33. While the rotating rod 32 is rotating, the other end drives the driving block 31 to rotate, causing the driving block 31 to push the driving slide rod 30 to move to both sides. This causes the driving slide rod 30 to drive the bottom movable mounting shell 18 to move to both sides of the lower mold 17, thereby preventing the first mounting plate 13 from pressing on the end face of the movable mounting shell 18. When lifted, the two movable mounting shells 18 move to the lower mold 17, thereby fixing the plastic on the end face of the lower mold 17.

[0033] Further reference Figure 2 , Figure 3 and Figure 7 The heat dissipation assembly includes a copper pipe 37 disposed inside the first mounting plate 13. The copper pipe 37 is attached to the upper end face of the upper mold 14. Above the copper pipe 37, inside the pressing machine body 10, a water tank 39 is disposed, and the water tank 39 is filled with coolant. One end of the copper pipe 37 is connected to the water tank 39, and a water pump 40 is disposed at one end of the water tank 39. The water pump 40 is connected to the other end of the copper pipe 37. By activating the water pump 40, the coolant inside the water tank 39 can be transported to the inside of the copper pipe 37. This allows the copper tube 37 to undergo thermal exchange with the upper mold 14, thereby reducing the temperature of the upper mold 14. At the same time, the top end face of the first mounting plate 13 is provided with air holes 38, which can dissipate heat from the copper tube 37. Above the air holes 38, inside the pressing machine body 10, an air bag 15 is provided. The interior of the air bag 15 is a cavity, and the bottom of the air bag 15 is provided with a nozzle 34. At the same time, activating the nozzle 34 can blow air to cool the air holes 38, further improving the cooling effect of the copper tube 37.

[0034] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0035] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0036] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A plastic hot melt pressing device, comprising a pressing machine body (10), characterized in that, The press body (10) is provided with a second mounting plate (16) inside. A lower mold (17) is provided on the end face of the second mounting plate (16). Movable mounting shells (18) are slidably provided on both sides of the lower mold (17). Clamping blocks (21) are slidably provided inside the two movable mounting shells (18). The two clamping blocks (21) can fix the product after molding. An air hole (22) is provided at one end of the clamping block (21). The air hole (22) can cool the product. An air cavity (26) is provided inside the second mounting plate (16). The air cavity (26) can preheat the lower mold (17). A first mounting plate (13) is slidably provided inside the press body (10). An upper mold (14) is provided on the bottom end face of the first mounting plate (13). A heat dissipation component is provided inside the first mounting plate (13).

2. The plastic hot melt pressing device according to claim 1, characterized in that, The interior of each of the two movable mounting shells (18) is provided with a cooling chip (19), and a second fan (24) is provided on one side of each of the two cooling chips (19). An air outlet (25) is provided on one side of the second fan (24) on the outer surface of the movable mounting shell (18), and the air outlet (25) is connected to the interior of the air chamber (26) through a hose.

3. The plastic hot melt pressing device according to claim 2, characterized in that, Each of the two cooling chips (19) is provided with a first fan (20) on the other side, and the air outlets of the two first fans (20) are respectively connected to the interior of the clamping block (21).

4. The plastic hot melt pressing device according to claim 1, characterized in that, Two sliding grooves (27) are symmetrically arranged on the end face of the second mounting plate (16). A slider (29) is slidably arranged inside each of the two sliding grooves (27). The two sliders (29) are fixedly connected to the bottom end face of the two movable mounting shells (18). A buffer spring (28) is provided between the two sliders (29) and the inner wall of the sliding groove (27).

5. A plastic hot melt pressing device according to claim 4, characterized in that, A drive slide rod (30) is provided on the end face of each of the two movable mounting shells (18). A drive block (31) is slidably provided on the outer circular surface of each of the two drive slide rods (30). A rotating rod (32) is rotatably provided at one end of each of the two drive blocks (31). A rotating shaft (33) is rotatably provided inside each of the two rotating rods (32). One end of each of the two rotating shafts (33) is fixedly connected to the inner wall of the pressing machine body (10).

6. The plastic hot melt pressing device according to claim 5, characterized in that, One end of each of the two rotating rods (32) is provided with an adaptation groove (35), and a connecting seat (36) is slidably provided inside each of the two adaptation grooves (35). Both connecting seats (36) are fixedly connected to the outer surface of the first mounting plate (13).

7. The plastic hot melt pressing device according to claim 1, characterized in that, The heat dissipation assembly includes a copper pipe (37) disposed inside the first mounting plate (13). The copper pipe (37) is attached to the upper end face of the mold (14). A water tank (39) is disposed above the copper pipe (37) inside the pressing machine body (10). One end of the copper pipe (37) is connected to the water tank (39). A water pump (40) is disposed at one end of the water tank (39). The water pump (40) is connected to the other end of the copper pipe (37).

8. A plastic hot melt pressing device according to claim 7, characterized in that, The top end face of the first mounting plate (13) is provided with an air hole (38), and an air bag (15) is provided above the air hole (38) inside the pressing body (10). A nozzle (34) is provided at the bottom of the air bag (15), and the nozzle (34) can blow air to cool the air hole (38).

9. A plastic hot melt pressing device according to claim 1, characterized in that, A rubber pad (23) is provided between each of the two clamping blocks (21) and the first fan (20), and the rubber pad (23) can buffer the clamping blocks (21).

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