Plastic part hot pressing device

Abstract

The utility model discloses a hot pressing device for plastic parts, and belongs to the technical field of plastic part production. The plastic part hot pressing device comprises a base assembly, the base assembly comprises a base, a first round hole is formed in the upper end face of the base, a connecting shaft is connected to the interior of the first round hole through a bearing, a rotating plate is connected to the upper end of the connecting shaft, a cavity is formed in the base, and a driving mechanism is arranged in the cavity and comprises a round plate. The top face of the circular plate is connected with the bottom face of the connecting shaft, one side of the outer wall of the circular plate is connected with a half gear ring, the bottom end of the interior of the cavity is connected with a rotating shaft through a bearing, the position, close to the upper end, of the exterior of the rotating shaft is sleeved with a gear, and the gear is meshed with the half gear ring. The plastic part hot-pressing device can effectively improve the plastic part hot-pressing efficiency and has high practical value.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic part production, in particular to a plastic part hot pressing device. Background Art

[0002] Plastic parts are a general term for various workpieces made of plastic. Plastic materials are primarily composed of carbon, oxygen, hydrogen, nitrogen, and other organic or inorganic elements. The finished product is solid. When heated to a certain temperature, it gradually softens until it reaches a fluid state. Based on this property, it can be molded through hot pressing and then cooled and solidified to form workpieces of various configurations.

[0003] For example, the Chinese patent publication number CN219076319U discloses a hot pressing device for plastic parts, which relates to the field of hot pressing technology and includes a base, the top of the base is fixedly connected to a support frame, the interior of the support frame is provided with a water trough, the interior of the support frame is fixedly connected to a spring frame, the interior of the spring frame is fixedly connected to a compression spring, the top of the compression spring is fixedly connected to a top block, a trough frame is plugged into the interior of the base, the inner wall of the trough frame is provided with a water inlet hole, a plug is slidably connected to the inside of the water inlet hole, a water pipe is fixedly installed on one side of the support frame, the bottom of one of the water pipes is fixedly connected to a water pump, and a water tank is provided at the bottom of the base. The advantage of this utility model is that after the hot pressing is completed, the device pushes the plug open through the compression spring and the top block, and water flows into the hot pressing part to take away the heat for dissipation. The multiple surfaces cooperate to form a larger heat dissipation contact surface, the heat dissipation effect is better, and the heat dissipation time is shorter.

[0004] The technical solution recorded in this proposal is that after the hot pressing is completed, the plug is pushed open by the compression spring and the top block, and water flows into the hot pressed part to take away the heat for dissipation. However, in actual use of this solution, since it takes a certain amount of time for the plastic parts to cool down, the plastic parts in the pressing groove rack must be cooled down before they can be taken out, and then the next plastic part can be placed in the pressing groove rack to continue hot pressing molding, thereby reducing the hot pressing efficiency of the plastic parts. Utility Model Content

[0005] The purpose of the present invention is to provide a plastic part hot pressing device to solve the problems raised in the above background technology.

[0006] In view of the above problems, the technical solution proposed by the present invention is:

[0007] A hot pressing device for plastic parts includes a base assembly, the base assembly includes a base, the upper end surface of the base is provided with a first circular hole, the interior of the first circular hole is connected to a connecting shaft via a bearing, the upper end of the connecting shaft is connected to a rotating plate, a cavity is provided inside the base, a driving mechanism is provided inside the cavity, the driving mechanism includes a circular plate, the top surface of the circular plate is connected to the bottom surface of the connecting shaft, and a half-toothed ring is connected to one side of the outer wall of the circular plate, the inner bottom end of the cavity is connected to the rotating shaft via a bearing, a gear is sleeved on the outside of the rotating shaft near the upper end, the gear and the half-toothed ring are meshed with each other, and the upper end surface of the rotating plate is connected to a lower mold assembly on both sides.

[0008] Furthermore, a worm gear is sleeved on the outside of the rotating shaft near the bottom end, and a worm is connected to the inner wall of the installation cavity near the worm gear through a bearing, and the worm and the worm gear are meshed with each other.

[0009] The beneficial effect of adopting the above further solution is that, through the coordinated use of the worm wheel and the worm, when the worm rotates, it is easy to drive the worm wheel meshing with the worm to rotate, thereby realizing the rotation of the rotating shaft.

[0010] Furthermore, a motor is provided on the front side of the base, and an output end of the motor is transmission-connected to the worm.

[0011] The beneficial effect of adopting the above further solution is that by providing a motor, when the motor is started, it is easy to drive the worm to rotate.

[0012] Furthermore, the two lower mold assemblies each include a lower mold base, the upper end surfaces of the two lower mold bases are provided with a mold cavity, and the interiors of the two lower mold bases are provided with a cooling cavity, the opposite sides of the two lower mold bases are provided with an air inlet hole, and the front, back and side away from the air inlet of the two lower mold bases are provided with an air outlet slot.

[0013] The beneficial effect of adopting the above further scheme is that by setting up the air inlet hole, cold air can enter the interior of the cooling cavity through the air inlet hole, and the mold cavity can be quickly cooled by air, thereby achieving heat dissipation of the plastic parts after hot pressing in the mold cavity. By setting up the air outlet slot, the air in the cooling cavity can be circulated quickly.

[0014] Furthermore, a downward pressing mechanism is provided on one side of the upper end surface of the base, and the downward pressing mechanism includes a first U-shaped frame, the bottom end of the first U-shaped frame is connected to the top surface of the base, and the upper end surface of the first U-shaped frame is provided with a hydraulic rod, the movable end of the hydraulic rod passes through the first U-shaped frame and is connected to an upper pressing seat, and a heating wire is provided in the upper pressing seat.

[0015] The beneficial effect of adopting the above further solution is that by providing a hydraulic rod, when the hydraulic rod is working, it is easy to realize the lifting and lowering of the upper press seat, thereby enabling the upper press seat to cooperate with the heating wire to complete the hot pressing work.

[0016] Furthermore, a cooling mechanism is provided on the outside of the base, and the cooling mechanism includes a second U-shaped frame and a bellows. The second U-shaped frame is arranged on the top surface of the base away from the first U-shaped frame, and the bellows is arranged on one side of the outer wall of the base. A second circular hole is opened on the upper end surface of the second U-shaped frame, and a cooling fan is provided inside the second circular hole.

[0017] The beneficial effect of adopting the above further solution is that by setting up a second U-shaped frame and arranging a cooling fan inside the second circular hole on the upper end surface of the second U-shaped frame, when the cooling fan is started, the top surface of the hot-pressed plastic part can be cooled.

[0018] Furthermore, a pair of mounting holes are provided on a side of the bellows away from the base, and fans are provided in each of the mounting holes. A pair of support plates are connected to the interior of the bellows, and a cooling pipe is inserted between the pair of support plates. The cooling pipe is filled with cold water. The upper end surface of the bellows is connected to a hose on one side of the cooling pipe, and one end of the hose is connected to a nozzle.

[0019] The beneficial effect of adopting the above further scheme is that by setting up a fan, when the fan is started, it is convenient to transport external air to the inside of the bellows, and form cold air through the cooling pipe. Then the user holds the hose and makes the nozzle connected to one end of the hose collide with the air inlet hole of the lower mold base, thereby facilitating the transportation of cold air into the cooling chamber.

[0020] Furthermore, both ends of the cooling pipe are connected to a water inlet pipe and a water outlet pipe respectively. The ends of the water inlet pipe and the water outlet pipe away from the cooling pipe both pass through the bellows and extend to the outside, and are respectively provided with a water inlet valve and a water outlet valve.

[0021] The beneficial effect of adopting the above further scheme is that by setting the water inlet valve and water inlet pipe, and the water outlet valve and water outlet pipe in coordination, the user can first open the water outlet valve to allow the cold water inside the cooling pipe to be drained through the water outlet pipe and then close the water outlet valve, open the water inlet valve, and re-inject cold water into the cooling pipe through the water inlet pipe, and then close the water inlet valve.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the plastic part hot pressing device, by installing lower mold assemblies on both sides of the upper end surface of the rotating plate, places the plastic part on the lower mold base located below the second U-shaped frame, and then starts the motor to drive the worm to rotate, driving the worm wheel engaged with the worm to rotate, thereby realizing the rotation of the rotating shaft, causing the gear to rotate, and due to the engagement of the gear and the half-tooth ring, the circular plate is rotated ninety degrees, causing a pair of lower mold bases to exchange positions. At this time, the lower mold base on which the hot-pressed plastic part is placed is located below the second U-shaped frame, which is convenient for subsequent cooling, and the lower mold base on which the unhot-pressed plastic part is placed is located below the first U-shaped frame, and the hot pressing work continues. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of a plastic part hot pressing device provided by the utility model;

[0024] Figure 2 This is an exploded three-dimensional structural diagram of a circular plate and a connecting shaft of a plastic parts hot pressing device provided by the utility model;

[0025] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of a bellows of a plastic parts hot pressing device provided by the present invention;

[0026] Figure 4 This is a schematic diagram of the cross-sectional three-dimensional structure of a lower die base of a plastic part hot pressing device provided by the present invention;

[0027] Figure 5 This is a partial front cross-sectional structural diagram of a base of a plastic part hot pressing device provided by the utility model.

[0028] In the figure: 100, base assembly; 1001, base; 1002, rotating plate; 1003, connecting shaft; 200, driving mechanism; 2001, circular plate; 2002, half-gear ring; 2003, rotating shaft; 2004, gear; 2005, worm gear; 2006, worm; 2007, motor; 300, lower mold assembly; 3001, lower mold base; 3002, cooling chamber; 3003, air inlet; 30 04. Air outlet trough; 400. Down-pressing mechanism; 4001. First U-shaped frame; 4002. Hydraulic rod; 4003. Upper pressure seat; 500. Cooling mechanism; 5001. Second U-shaped frame; 5002. Cooling fan; 5003. Bellows; 5004. Fan; 5005. Support plate; 5006. Cooling pipe; 5007. Water inlet valve; 5008. Water outlet valve; 5009. Hose; 5010. Nozzle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 5 The utility model provides a technical solution: a plastic part hot pressing device, including a base assembly 100, the base assembly 100 includes a base 1001, the upper end surface of the base 1001 is provided with a first circular hole, the interior of the first circular hole is connected to a connecting shaft 1003 through a bearing, the upper end of the connecting shaft 1003 is connected to a rotating plate 1002, the base 1001 is provided with a cavity, the interior of the cavity is provided with a driving mechanism 200, the driving mechanism 200 includes a circular plate 2001, the top surface of the circular plate 2001 is connected to the bottom surface of the connecting shaft 1003, and one side of the outer wall of the circular plate 2001 is connected to a half gear ring 2002, the inner bottom end of the cavity is connected to the rotating shaft 2003 through a bearing, the outer side of the rotating shaft 2003 is sleeved with a gear 2004 near the upper end, and the gear The wheel 2004 and the half-toothed ring 2002 are meshed with each other, and the lower mold assembly 300 is connected to both sides of the upper end surface of the rotating plate 1002. By installing the lower mold assembly 300 on both sides of the upper end surface of the rotating plate 1002, the plastic parts are placed on the lower mold base 3001 located below the second U-shaped frame 5001. When the rotating shaft 2003 rotates, the gear 2004 rotates. Since the gear 2004 and the half-toothed ring 2002 are meshed, the circular plate 2001 is rotated ninety degrees, causing a pair of lower mold bases 3001 to exchange positions. At this time, the lower mold base 3001 on which the hot-pressed plastic parts are placed is located at the cooling mechanism 500 for subsequent cooling. The lower mold base 3001 on which the unhot-pressed plastic parts are placed is located at the pressing mechanism 400 to continue the hot pressing work.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 5The present invention provides a technical solution: a worm gear 2005 is sleeved on the outside of the rotating shaft 2003 near the bottom end, a worm 2006 is connected to the inner wall of the mounting cavity near the worm gear 2005 through a bearing, the worm 2006 and the worm gear 2005 are meshed with each other, a motor 2007 is provided on the front of the base 1001, and the output end of the motor 2007 is transmission-connected to the worm 2006, and both lower mold assemblies 300 include a lower mold base 3001. The upper end surfaces of the two lower mold bases 3001 are provided with mold cavities, and the interiors of the two lower mold bases 3001 are provided with cooling cavities 3002. The opposite sides of the two lower mold bases 3001 are provided with air inlet holes 3003, and the front, back and side away from the air inlet holes 3003 of the two lower mold bases 3001 are provided with air outlet slots 3004. A downward pressing mechanism 400 is provided on one side of the upper end surface of the base 1001. The downward pressing mechanism 400 includes a first U-shaped frame 400. 01, the bottom end of the first U-shaped frame 4001 is connected to the top surface of the base 1001, and the upper end surface of the first U-shaped frame 4001 is provided with a hydraulic rod 4002, the movable end of the hydraulic rod 4002 passes through the first U-shaped frame 4001 and is connected to the upper pressure seat 4003, and the upper pressure seat 4003 is provided with a heating wire. By starting the motor 2007, it is easy to drive the worm 2006 to rotate, and drive the rotation of the worm wheel 2005 engaged with the worm 2006, so as to To realize the rotation of the rotating shaft 2003, an air inlet hole 3003 is provided, so that cold air can enter the interior of the cooling chamber 3002 through the air inlet hole 3003, and the plastic parts after hot pressing in the mold cavity are quickly cooled by air. By providing an air outlet slot 3004, the air in the cooling chamber 3002 can circulate quickly. When the hydraulic rod 4002 is working, the lifting and lowering of the upper pressure seat 4003 can be realized, and the upper pressure seat 4003 can cooperate with the heating wire to complete the hot pressing work.

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 5The present invention provides a technical solution: a cooling mechanism 500 is provided on the outside of the base 1001, and the cooling mechanism 500 includes a second U-shaped frame 5001 and a bellows 5003. The second U-shaped frame 5001 is provided on the top surface of the base 1001 away from the first U-shaped frame 4001, and the bellows 5003 is provided on one side of the outer wall of the base 1001. A second circular hole is provided on the upper end surface of the second U-shaped frame 5001, and a cooling fan 5002 is provided inside the second circular hole. The bellows 5003 is away from the bottom. A pair of mounting holes are provided on one side of the base 1001, each of which is provided with a fan 5004. A pair of support plates 5005 are connected to the interior of the bellows 5003, a cooling pipe 5006 is inserted between the pair of support plates 5005, and the cooling pipe 5006 is filled with cold water. A hose 5009 is connected to the upper end surface of the bellows 5003 on one side of the cooling pipe 5006, and one end of the hose 5009 is connected to a nozzle 5010. The two ends of the cooling pipe 5006 are respectively connected to a water inlet pipe and a water outlet pipe. The ends of the water inlet pipe and the water outlet pipe away from the cooling pipe 5006 extend through the bellows 5003 to the outside, and are respectively provided with a water inlet valve 5007 and a water outlet valve 5008. When the cooling fan 5002 is started, the top surface of the hot-pressed plastic part is cooled. When the fan 5004 is started, the external air is transported to the inside of the bellows 5003 and passes through the cooling pipe 5006 to form cold air. Then the user holds the hose 5009 and opens the nozzle 5009 connected to the nozzle 5006. 10 is abutted against the air inlet hole 3003 of the lower mold base 3001, thereby facilitating the delivery of cold air into the cooling chamber 3002. By setting the water inlet valve 5007 and the water inlet pipe, and the water outlet valve 5008 and the water outlet pipe, the user can first open the water outlet valve 5008 to allow the cold water inside the cooling pipe 5006 to be drained through the water outlet pipe and then close the water outlet valve 5008, open the water inlet valve 5007, and re-inject cold water into the cooling pipe 5006 through the water inlet pipe, and then close the water inlet valve 5007.

[0035] Specifically, the working principle of this plastic part hot pressing device is as follows: when in use, a plastic part is placed on the lower mold base 3001 located below the second U-shaped frame 5001. By starting the motor 2007, the worm 2006 is driven to rotate, which drives the worm wheel 2005 engaged with the worm 2006 to rotate, thereby realizing the rotation of the rotating shaft 2003, causing the gear 2004 to rotate. Since the gear 2004 is engaged with the half gear ring 2002, the circular plate 2001 rotates 90 degrees. The pair of lower mold bases 3001 are exchanged. At this time, the lower mold base 3001 with the hot-pressed plastic part is located at the cooling mechanism 500 for subsequent cooling. The lower mold base 3001 with the unhot-pressed plastic part is located at the lower pressing mechanism 400 to continue the hot pressing work. When the hydraulic rod 4002 is working, it is convenient to realize the lifting and lowering work of the upper pressing seat 4003, so that the upper pressing seat 4003 cooperates with the heating wire to complete the hot pressing work. When the cooling fan 5002 is started, the upper pressing seat 4003 is lifted and lowered. It is convenient to dissipate heat on the top surface of the hot-pressed plastic part. When the fan 5004 is started, the external air is conveniently transported to the inside of the bellows 5003 and forms cold wind through the cooling pipe 5006. Then the user holds the hose 5009 and makes the nozzle 5010 connected to one end of the hose 5009 collide with the air inlet 3003 of the lower mold base 3001, so as to facilitate the delivery of cold wind to the cooling cavity 3002, and quickly cool the mold cavity, thereby achieving the purpose of cooling the hot-pressed plastic part in the mold cavity. The plastic parts dissipate heat, and the air outlet slot 3004 is provided to facilitate rapid circulation of air in the cooling chamber 3002. By providing the water inlet valve 5007 and the water inlet pipe, and the water outlet valve 5008 and the water outlet pipe, the user can first open the water outlet valve 5008 to allow the cold water inside the cooling pipe 5006 to be drained through the water outlet pipe, and then close the water outlet valve 5008, open the water inlet valve 5007, and re-inject cold water into the cooling pipe 5006 through the water inlet pipe, and then close the water inlet valve 5007.

Claims

1. A plastic parts hot pressing device, characterized in that: The invention comprises a base assembly (100), wherein the base assembly (100) comprises a base (1001), wherein the upper end surface of the base (1001) is provided with a first circular hole, wherein the interior of the first circular hole is connected to a connecting shaft (1003) via a bearing, wherein the upper end of the connecting shaft (1003) is connected to a rotating plate (1002), wherein the interior of the base (1001) is provided with a cavity, wherein the interior of the cavity is provided with a driving mechanism (200), wherein the driving mechanism (200) comprises a circular plate (2001), wherein the rotating plate (1002) is provided with a driving mechanism (200), wherein the rotating plate (1002) is provided with a driving mechanism (200), wherein the rotating plate (1002) is provided with a driving mechanism (200), wherein the driving mechanism (200) comprises a circular plate (2001), wherein the rotating plate (1002) is provided with a driving mechanism (200), wherein the driving mechanism (200) comprises a driving mechanism (2001), wherein the driving mechanism (200) comprises a driving mechanism (2001), wherein the driving mechanism (200) is provided with ...0), wherein the driving mechanism (200) is provided with a driving mechanism (2000), wherein the driving mechanism (200) is provided with a driving mechanism (2000), wherein the driving mechanism (2000) is provided with a driving mechanism (2000), wherein the driving mechanism (2000) is provided with a driving mechanism (2000). The top surface of the circular plate (2001) is connected to the bottom surface of the connecting shaft (1003), and a half-toothed ring (2002) is connected to one side of the outer wall of the circular plate (2001). The inner bottom end of the cavity is connected to the rotating shaft (2003) through a bearing. A gear (2004) is sleeved on the outer side of the rotating shaft (2003) near the upper end. The gear (2004) and the half-toothed ring (2002) are meshed with each other. The lower mold assembly (300) is connected to both sides of the upper end surface of the rotating plate (1002).

2. A plastic parts hot pressing device according to claim 1, characterized in that: A worm gear (2005) is sleeved on the outside of the rotating shaft (2003) near the bottom end, and a worm (2006) is connected to the inner wall of the cavity near the worm gear (2005) through a bearing, and the worm (2006) and the worm gear (2005) are meshed with each other.

3. A plastic parts hot pressing device according to claim 2, characterized in that: A motor (2007) is provided on the front of the base (1001), and an output end of the motor (2007) is transmission-connected to the worm (2006).

4. A plastic part hot pressing device according to claim 3, characterized in that: The two lower mold assemblies (300) each include a lower mold base (3001), a mold cavity is provided on the upper end surface of the two lower mold bases (3001), and a cooling cavity (3002) is provided inside the two lower mold bases (3001), an air inlet (3003) is provided on the opposite sides of the two lower mold bases (3001), and an air outlet slot (3004) is provided on the front, back and side away from the air inlet (3003) of the two lower mold bases (3001).

5. The hot pressing device for plastic parts according to claim 4, characterized in that: A pressing mechanism (400) is provided on one side of the upper end surface of the base (1001), and the pressing mechanism (400) includes a first U-shaped frame (4001), the bottom end of the first U-shaped frame (4001) is connected to the top surface of the base (1001), and the upper end surface of the first U-shaped frame (4001) is provided with a hydraulic rod (4002), the movable end of the hydraulic rod (4002) passes through the first U-shaped frame (4001) and is connected to an upper pressing seat (4003), and a heating wire is provided in the upper pressing seat (4003).

6. The plastic part hot pressing device according to claim 5, characterized in that: A cooling mechanism (500) is provided on the outside of the base (1001), and the cooling mechanism (500) comprises a second U-shaped frame (5001) and a bellows (5003). The second U-shaped frame (5001) is arranged on the top surface of the base (1001) away from the first U-shaped frame (4001). The bellows (5003) is arranged on one side of the outer wall of the base (1001). A second circular hole is provided on the upper end surface of the second U-shaped frame (5001), and a cooling fan (5002) is provided inside the second circular hole.

7. A plastic part hot pressing device according to claim 6, characterized in that: A pair of mounting holes is provided on a side of the bellows (5003) away from the base (1001), and a fan (5004) is provided in each of the mounting holes. A pair of support plates (5005) are connected to the interior of the bellows (5003), and a cooling pipe (5006) is inserted between the pair of support plates (5005). The cooling pipe (5006) is filled with cold water. The upper end surface of the bellows (5003) is connected to a hose (5009) on one side of the cooling pipe (5006), and one end of the hose (5009) is connected to a nozzle (5010).

8. The plastic part hot pressing device according to claim 7, characterized in that: The two ends of the cooling pipe (5006) are connected to a water inlet pipe and a water outlet pipe respectively. The ends of the water inlet pipe and the water outlet pipe away from the cooling pipe (5006) both pass through the bellows (5003) and extend to the outside, and are respectively provided with a water inlet valve (5007) and a water outlet valve (5008).

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