Cooling device of plastic vacuum forming machine

Abstract

The utility model discloses a plastic vacuum forming machine cooling device which comprises a plastic vacuum forming machine base, supporting columns, a top plate, an upper mold and a lower mold, cooling assemblies are arranged on the supporting columns on the two sides of the lower mold respectively, each cooling assembly comprises four vertically-arranged guide rails, and each guide rail is correspondingly and fixedly connected to the outer side wall of the corresponding supporting column. First sliding blocks are slidably connected to the guide rails, each first sliding block is in transmission connection with a driving assembly, one end of each first sliding block is fixedly connected with a first connecting plate, a first mounting plate is rotatably connected between the two first connecting plates on the same side, a plurality of fans are fixedly connected to the first mounting plate, and a mounting rod is arranged on the mounting plate. A plurality of atomizing nozzles are slidably connected to the mounting rod, and an angle adjusting assembly is fixedly connected to the first connecting plate at one end of the first mounting plate. The cooling device can be suitable for cooling products of different sizes and shapes, the practicability of the device is improved, and meanwhile the cooling efficiency of the cooling device can be improved.

Description

Technical Field

[0001] The utility model relates to the field of cooling of plastic thermoforming machines, in particular to a cooling device for plastic thermoforming machines. Background Art

[0002] A plastic thermoforming machine is also called a thermoplastic forming machine. The process of this forming equipment mainly uses the vacuum suction generated by a vacuum pump to suck and form various-shaped vacuum covers from heat-moldable plastic sheets such as PVC, PET, PETG, APTT, PP, PE, and PS softened by heating, or to attach them to the surfaces of various-shaped products. After the plastic sheet is sucked and formed by a mold, it is necessary to cool the product through a cooling device for demolding.

[0003] In the existing cooling device for plastic thermoforming machines, the surface of the product is usually cooled by spraying water through a spray head, or by air cooling with a fan. The positions of the fan and the spray head are usually fixedly installed, and only the fixed positions of the product can be sprayed or blown for cooling. For example, the utility model patent with the application number 202223260637.3 discloses a rapid cooling device for a plastic thermoforming machine. Although this utility model can, by arranging a hair dryer installed through an air-cooling box on the front surface of the plastic thermoforming machine and a straight pipe inserted at the bottom surface of the heat absorption box, enable the mold on the surface of the pushing plate to be preferentially air-cooled by the hair dryer after being processed by the plastic thermoforming machine, and then absorb the surface residual heat through the straight pipe. At the same time, an inclined plate is arranged below the air outlet of the hair dryer, which can increase the air resistance of the blown air and avoid the situation that the mold is deformed due to too high wind speed.

[0004] However, in the technical solution of this utility model patent, the installation position of the hair dryer is fixed and cannot change the blowing angle of the hair dryer according to the changes in the size and shape of the product, which easily leads to insufficient cooling of the product, fails to meet the cooling requirements, and affects the shaping and demolding of the product after plastic thermoforming; in addition, this utility model patent only uses the air cooling of the hair dryer and the heat conduction of the straight pipe to cool the product, and its cooling effect is poor, which affects the production efficiency of the plastic thermoforming machine.

[0005] Therefore, it is necessary to develop a cooling device for a plastic thermoforming machine to address the above-mentioned defects. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a cooling device for a plastic thermoforming machine, which can be applicable to the cooling of products with different sizes and shapes and improve the practicability of the device.

[0007] To solve the above technical problems, the utility model adopts the following technical solutions:

[0008] A cooling device for a plastic thermoforming machine of the utility model includes a base of the plastic thermoforming machine. Four corners of the top surface of the base of the plastic thermoforming machine are respectively fixedly connected with support columns. The top surface of the support columns is fixedly connected with a top plate. The bottom surface of the top plate is connected with an upper mold. A lower mold is arranged on the top surface of the base of the plastic thermoforming machine. Cooling components are respectively arranged on the support columns on both sides of the lower mold. The cooling component includes four vertically arranged guide rails, and each guide rail is fixedly connected to the outer side wall of each support column respectively. A first slider is slidably connected to the guide rail. A driving component is drivingly connected to each first slider. One end of the first slider is fixedly connected with a first connecting plate. A first mounting plate is rotatably connected between two first connecting plates on the same side. A plurality of fans are fixedly connected to the first mounting plate. A mounting rod is detachably connected to the first mounting plate below the fan. A plurality of atomizing nozzles are slidably connected to the mounting rod. The atomizing nozzles are communicated with an external water supply device through a water pipe; An angle adjusting component is fixedly connected to the first connecting plate at one end of the first mounting plate.

[0009] Further, the driving component includes a lead screw. Oppositely arranged support seats are respectively fixedly connected to the side surfaces of the top plate and the base of the plastic thermoforming machine. The lead screw is rotatably connected between the two support seats. A threaded cylinder is threadedly connected to the lead screw. The threaded cylinder is fixedly connected with the first connecting plate; A motor is fixedly installed on the top surface of the support seat on the side surface of the top plate. The output end of the motor is drivingly connected to one end of the lead screw; The two motors of the same cooling component operate synchronously.

[0010] Further, the angle adjusting component includes a ratchet wheel. One end of the first mounting plate is fixedly connected with a rotating shaft. The rotating shaft passes through the first connecting plate and is rotatably connected thereto. The ratchet wheel is sleeved and fixedly connected to the outer side of the rotating shaft. The ratchet wheel is adaptively connected with a ratchet pawl. The ratchet pawl is rotatably connected to the outer side surface of the first connecting plate.

[0011] Further, an adjusting turntable is fixedly connected to the outer end surface of the rotating shaft.

[0012] Further, the atomizing nozzle is fixedly connected with a second connecting plate. A first mounting through hole is opened on the second connecting plate; A second mounting plate is slidably connected to the mounting rod. A plurality of second mounting through holes arranged at intervals are opened on the second mounting plate. The second connecting plate and the second mounting plate are detachably connected by a bolt passing through the first mounting through hole and any one of the second mounting through holes.

[0013] Further, one end of the second mounting plate is fixedly connected with a second slider. The mounting rod is of a cylindrical structure. The second slider is slidably sleeved on the outer side of the mounting rod.

[0014] Further, a limiting hole is penetratingly formed in the outer wall of the second slider. The limiting hole is a threaded hole, and a threaded rod is threadedly connected to the limiting hole. A pull ring is fixedly connected to the outer end of the threaded rod.

[0015] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0016] 1. Through the arrangement of the fan, the present utility model can play an auxiliary role while the atomizing nozzle cools the product, enabling the water mist ejected by the atomizing nozzle to quickly reach all positions on the surface of the product. At the same time, through the airflow generated by the fan, the rapid gasification and volatilization of the water mist on the product surface can be accelerated, thereby improving the cooling efficiency and effect of the device.

[0017] 2. Through the driving component, the present utility model can drive the cooling component to move up and down on the support column, enabling the simultaneous adjustment of the position heights of the fan and the atomizing nozzle, facilitating the removal of the product from the lower mold, and being convenient for cooling products of different sizes.

[0018] 3. Through the angle adjustment component, the present utility model can simultaneously adjust the orientation angles of the fan and the atomizing nozzle according to the shape and size of the product, improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present utility model with reference to the drawings.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the cooling device of the plastic suction machine of the present utility model;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the cooling component of the present utility model;

[0022] Figure 3 It is a three-dimensional structural schematic diagram when the atomizing nozzle of the present utility model is disassembled.

[0023] Description of the reference numerals: 1. Base of the plastic suction machine; 2. Support column; 3. Top plate; 4. Upper mold; 5. Lower mold; 6. Guide rail; 7. First slider; 8. First connecting plate; 9. First mounting plate; 10. Fan; 11. Mounting rod; 12. Atomizing nozzle; 13. Water pipe; 14. Lead screw; 15. Support seat; 16. Threaded cylinder; 17. Motor; 18. Ratchet; 19. Pawl; 20. Rotating shaft; 21. Adjusting turntable; 22. Second connecting plate; 23. First mounting through hole; 24. Second mounting plate; 25. Second mounting through hole; 26. Second slider; 27. Limiting hole; 28. Threaded rod; 29. Pull ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The core of the present utility model is to provide a cooling device for a plastic thermoforming machine, which can be applicable to the cooling of products with different sizes and shapes, improve the practicability of the device, and at the same time improve the cooling efficiency of the cooling device and the production efficiency of the plastic thermoforming machine.

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] In a specific embodiment, as Figures 1 to 3 shown, a cooling device for a plastic thermoforming machine includes a plastic thermoforming machine base 1. Four corners of the top surface of the plastic thermoforming machine base 1 are respectively fixedly connected with columns 2. The top surface of the columns 2 is fixedly connected with a top plate 3. The bottom surface of the top plate 3 is connected with an upper mold 4. A lower mold 5 is arranged on the top surface of the plastic thermoforming machine base 1. Cooling components are respectively arranged on the columns 2 on both sides of the lower mold 5. The cooling components include four vertically arranged guide rails 6. Each guide rail 6 is fixedly connected to the outer side wall of each column 2 respectively. A first slider 7 is slidably connected to the guide rail 6. A driving component is drivingly connected to each first slider 7. One end of the first slider 7 is fixedly connected with a first connecting plate 8. A first mounting plate 9 is rotatably connected between two first connecting plates 8 on the same side. A plurality of fans 10 are fixedly connected to the first mounting plate 9. A mounting rod 11 is detachably connected to the first mounting plate 9 below the fans 10. A plurality of atomizing nozzles 12 are slidably connected to the mounting rod 11. The atomizing nozzles 12 are communicated with an external water supply device through a water pipe 13. An angle adjusting component is fixedly connected to the first connecting plate 8 at one end of the first mounting plate 9.

[0028] By arranging cooling components on both sides of the lower mold 5, the products on the lower mold 5 are cooled. Through the arrangement of the fans 10 in the cooling components, while the atomizing nozzles 12 perform water-cooling on the products, an auxiliary effect can be achieved, enabling the water mist ejected by the atomizing nozzles 12 to quickly reach all positions on the surface of the products. At the same time, through the airflow generated by the fans 10, the rapid vaporization and volatilization of the water mist on the product surface can be accelerated, improving the cooling efficiency and effect of the device. Through the driving component, the first slider 7 can be driven to move up and down on the guide rail 6, thereby driving the cooling component to move up and down on the support column 2, enabling the position heights of the fans 10 and the atomizing nozzles 12 to be adjusted simultaneously, facilitating the removal of the products from the lower mold 5 and being suitable for cooling products of different sizes. Through the angle adjustment component, the orientation angles of the fans 10 and the atomizing nozzles 12 can be adjusted simultaneously according to the shape and size of the products, improving the applicability of the device.

[0029] In a specific embodiment, the driving component includes a lead screw 14. Support seats 15 are respectively and fixedly connected to the side surfaces of the top plate 3 and the blister machine base 1 in a relatively arranged manner. The lead screw 14 is rotatably connected between the two support seats 15. A threaded barrel 16 is threadedly connected to the lead screw 14, and the threaded barrel 16 is fixedly connected to the first connecting plate 8. A motor 17 is fixedly installed on the top surface of the support seat 15 on the side surface of the top plate 3, and the output end of the motor 17 is drivingly connected to one end of the lead screw 14. The two motors 17 of the same cooling component operate synchronously.

[0030] By controlling the forward and reverse rotation of the motor 17, the lead screw 14 can be driven to rotate, thereby driving the threaded barrel 16, the first connecting plate 8, and the first slider 7 to move up and down linearly on the guide rail 6, so as to realize the lifting of the cooling component on the support column 2 and change the height position of the cooling component. By controlling the two motors 17 of the same cooling component through the controller, the movement of the motor 17 is synchronized through program control. This is prior art and will not be elaborated here. In other embodiments, the four motors 17 in the two cooling components can be controlled to operate synchronously in the above manner to realize the synchronous lifting of the two groups of cooling components.

[0031] In a specific embodiment, the angle adjustment component includes a ratchet wheel 18. One end of the first mounting plate 9 is fixedly connected to a rotating shaft 20. The rotating shaft 20 passes through the first connecting plate 8 and is rotatably connected thereto. The ratchet wheel 18 is sleeved and fixedly connected to the outside of the rotating shaft 20. The ratchet wheel 18 is adaptively connected to a pawl 19, and the pawl 19 is rotatably connected to the outer side surface of the first connecting plate 8.

[0032] By rotating the ratchet wheel 18, the rotating shaft 20 can be driven to rotate, thereby driving the first connecting plate 8 to deflect at an angle, so as to realize the adjustment of the orientation and angle of the first connecting plate 8 and the fans 10 and the atomizing nozzles 12 on the first connecting plate 8. By fixing the position of the ratchet wheel 18 through the pawl 19, the self-angle change of the first connecting plate 8 under the action of gravity is prevented.

[0033] Specifically, an adjustment turntable 21 is fixedly connected to the outer end face of the rotating shaft 20.

[0034] By providing the adjustment turntable 21, it is convenient for the staff to manually rotate the ratchet wheel 18 to adjust the angles of the fan 10 and the atomizing nozzle 12.

[0035] In a specific embodiment, the atomizing nozzle 12 is fixedly connected with a second connecting plate 22, and a first installation through hole 23 is formed in the second connecting plate 22; a second installation plate 24 is slidably connected to the installation rod 11, and a plurality of second installation through holes 25 arranged at intervals are formed in the second installation plate 24. The second connecting plate 22 and the second installation plate 24 are detachably connected by a bolt passing through the first installation through hole 23 and any one of the second installation through holes 25.

[0036] By connecting the first installation through hole 23 of the second connecting plate 22 with different second installation through holes 25 on the second installation plate 24 by bolts, the distance between the atomizing nozzle 12 on the second connecting plate 22 and the product on the lower mold 5 can be changed, further improving the applicability of the device.

[0037] Specifically, one end of the second installation plate 24 is fixedly connected with a second slider 26. The installation rod 11 is of a cylindrical structure, and the second slider 26 is slidably sleeved outside the installation rod 11.

[0038] Specifically, a limiting hole 27 is formed through the outer wall of the second slider 26. The limiting hole 27 is a threaded hole, and a threaded rod 28 is threadedly connected to the limiting hole 27. A pull ring 29 is fixedly connected to the outer end of the threaded rod 28.

[0039] By sleeving the second slider 26 on the cylindrical installation rod 11, the distance between the atomizing nozzles 12 on the second connecting plate 22 can be adjusted. At the same time, by rotating the second slider 26 on the installation rod 11, the orientation angle of each atomizing nozzle 12 can be adjusted separately, further improving the applicability of the device. By screwing the threaded rod 28 into the limiting hole 27 of the second slider 26, the top end of the threaded rod 28 abuts against the outer wall of the installation rod 11, thereby fixing the second slider 26 on the installation rod 11 to prevent the second slider 26 from rotating on the installation rod 11.

[0040] Working principle of the utility model: When the position of the nozzle needs to be adjusted during the operation of the thermoforming machine, two motors 17 of the same cooling mechanism are controlled to run synchronously to drive the lead screw 14 to rotate, thereby driving the threaded cylinder 16, the first connecting plate 8 and the first slider 7 to move up and down linearly along the guide rail 6, so as to realize the lifting of the cooling assembly on the support column 2 and change the height position of the cooling assembly. By rotating the ratchet wheel 18, the rotating shaft 20 can be driven to rotate, and then the first connecting plate 8 can be driven to deflect at an angle, so as to realize the adjustment of the orientation and angle of the fan 10 and the atomizing nozzle 12. The position of the ratchet wheel 18 is fixed by the pawl 19 to prevent the self-angle deflection of the first connecting plate 8 under the action of gravity. When the atomizing nozzle 12 and the fan 10 are turned on, the atomizing nozzle 12 sprays water mist to cool the products after thermoforming on the lower mold 5. At the same time, the air flow generated by the fan 10 can make the water mist sprayed by the atomizing nozzle 12 quickly reach all positions on the surface of the product. In addition, it can also accelerate the rapid gasification and volatilization of the water mist on the product surface and improve the cooling efficiency and effect of the device.

[0041] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0042] The above-described embodiments are only descriptions of the preferred modes of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the utility model shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A cooling device for a blister machine, comprising a blister machine base (1), wherein four corners of the top surface of the blister machine base (1) are respectively fixedly connected with pillars (2), the top surface of the pillars (2) is fixedly connected with a top plate (3), the bottom surface of the top plate (3) is connected with an upper mold (4), and the top surface of the blister machine base (1) is provided with a lower mold (5), characterized in that: The pillars (2) on both sides of the lower mold (5) are respectively provided with cooling components, and the cooling components include four vertically arranged guide rails (6), each guide rail (6) is respectively fixedly connected to the outer side wall of each pillar (2), a first slider (7) is slidably connected to the guide rail (6), and each first slider (7) is transmission-connected with a driving component, one end of the first slider (7) is fixedly connected to a first connecting plate (8), and a first mounting plate (9) is rotatably connected between two first connecting plates (8) on the same side, and a plurality of fans (10) are fixedly connected to the first mounting plate (9), and a mounting rod (11) is detachably connected to the first mounting plate (9) below the fan (10), and a plurality of atomizing nozzles (12) are slidably connected to the mounting rod (11), and the atomizing nozzles (12) are connected to an external water supply device through a water pipe (13); an angle adjustment component is fixedly connected to the first connecting plate (8) at one end of the first mounting plate (9).

2. The cooling device for the blister machine according to claim 1, characterized in that: The driving assembly comprises a lead screw (14), and the top plate (3) and the side of the blister machine base (1) are respectively fixedly connected with support seats (15) arranged opposite to each other, the lead screw (14) is rotatably connected between the two support seats (15), and a threaded barrel (16) is threadedly connected to the lead screw (14), and the threaded barrel (16) is fixedly connected to the first connecting plate (8); a motor (17) is fixedly installed at one end of the support seat (15) on the side of the top plate (3), and the output end of the motor (17) is transmission-connected to one end of the lead screw (14); the two motors (17) of the same cooling assembly operate synchronously.

3. The cooling device for the blister machine according to claim 1, characterized in that: The angle adjustment assembly comprises a ratchet (18), one end of the first mounting plate (9) is fixedly connected to a rotating shaft (20), the rotating shaft (20) passes through the first connecting plate (8) and is rotatably connected thereto, the ratchet (18) is sleeved and fixedly connected to the outside of the rotating shaft (20), the ratchet (18) is adapted to be connected to a pawl (19), and the pawl (19) is rotatably connected to the outer side surface of the first connecting plate (8).

4. The cooling device for the blister machine according to claim 3, characterized in that: An adjusting dial (21) is fixedly connected to the outer end surface of the rotating shaft (20).

5. The cooling device for the blister machine according to claim 1, characterized in that: The atomizing nozzle (12) is fixedly connected to a second connecting plate (22), and a first mounting through hole (23) is provided on the second connecting plate (22); the mounting rod (11) is slidably connected to a second mounting plate (24), and a plurality of second mounting through holes (25) are provided on the second mounting plate (24) at intervals; the second connecting plate (22) and the second mounting plate (24) are detachably connected by bolts penetrating the first mounting through hole (23) and any one of the second mounting through holes (25).

6. The cooling device for the blister machine according to claim 5, characterized in that: A second sliding block (26) is fixedly connected to one end of the second mounting plate (24); the mounting rod (11) is a cylindrical structure; and the second sliding block (26) is slidably sleeved on the outside of the mounting rod (11).

7. The cooling device for the blister machine according to claim 6, characterized in that: A limiting hole (27) is formed through the outer wall of the second sliding block (26); the limiting hole (27) is a threaded hole; a threaded rod (28) is threadedly connected to the limiting hole (27); and a pull ring (29) is fixedly connected to the outer end of the threaded rod (28).

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