Temperature-adjusting blister tray forming device

Abstract

The utility model belongs to the technical field of forming devices, and particularly relates to a temperature-adjusting blister tray forming device which comprises a blister mold and an ejection assembly, the blister mold comprises a mold plate and a male mold, the male mold is fixedly connected to the top end of the mold plate, a groove set is arranged at the top of the male mold, the ejection assembly is slidably connected to the interior of the groove set, and the mold plate is fixedly connected to the mold plate. And exhaust holes are formed in the side walls of the groove sets, and a driving assembly used for driving the ejection assembly to ascend and descend is arranged between the bottom end of the ejection assembly and the bottom end of the mold plate. According to the tray heat dissipation device, after plastic uptake is completed, the ejection assembly is driven downwards to enable the top of the groove set to be free, then air is injected into the top of the groove set to enable the air to flow at the top of the groove set, and therefore heat dissipation is rapidly conducted on a tray; after heat dissipation is completed, the ejection assembly is pushed upwards, gas is sprayed out, the tray can be jacked up through the gas along with rising of the ejection assembly, the stress uniformity of the tray is improved, and damage to the tray when the tray is jacked up is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of molding device technology, specifically relating to a temperature-controlled thermoforming tray molding device. Background Technology

[0002] Vacuum forming technology is one of the most commonly used molding methods for plastic products. It is a molding technology that uses thermoplastic sheets as the molding object. Through continuous development and changes, the vacuum forming process has now achieved a high degree of automation and mechanization. Through continuous improvement of vacuum forming equipment, its application has become very widespread. When manufacturing pallets, the vacuum forming device can realize the rapid production of pallets.

[0003] The commonly used tray thermoforming equipment has a fixed mold structure. During use, the tray can only dissipate heat from the outside, resulting in low heat dissipation efficiency. Moreover, the tray is ejected directly by ejector pins, which can easily cause deformation and damage to the tray. Utility Model Content

[0004] The purpose of this invention is to provide a temperature-controlled thermoforming tray forming device that can quickly dissipate heat from the tray and reduce damage to the tray when lifting it, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a temperature-controlled thermoforming tray forming device, comprising a thermoforming mold and an ejector assembly, wherein the thermoforming mold comprises a template and a punch, the punch is fixedly connected to the top of the template, the top of the punch is provided with a groove group, the ejector assembly is slidably connected inside the groove group, the side wall of the groove group is provided with an exhaust hole, and a drive assembly for driving the ejector assembly to rise and fall is provided between the bottom end of the ejector assembly and the bottom end of the template.

[0006] Furthermore, the groove group includes a central hole disposed in the middle of the punch, the bottom end of the central hole penetrating the template, a plurality of concentrically arranged annular grooves disposed at the top end of the punch, and equidistantly distributed connecting grooves disposed at the top end of the punch, the plurality of annular grooves being connected to the central hole through the connecting grooves.

[0007] Furthermore, the sidewall of the central hole is provided with a diaphragm groove, one end of the vent hole is connected to the outermost annular groove, and the bottom end of the vent hole penetrates the bottom end of the template.

[0008] Furthermore, the ejection assembly includes a top-closed air tube and several equally spaced rings, the rings being slidably connected inside the several annular grooves, and the air tube being slidably connected inside the central hole.

[0009] Furthermore, a connecting rod is slidably connected inside the communicating groove, the ring is fixedly connected by the connecting rod, and one end of the connecting rod is fixedly connected to the side wall of the trachea.

[0010] Furthermore, the top of the trachea sidewall is provided with evenly distributed air outlet holes.

[0011] Furthermore, the driving assembly includes a base plate fixedly connected to the bottom of the trachea, on which electric actuators are symmetrically arranged, and the top end of the electric actuators is fixedly connected to the bottom end of the template.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: After the vacuum forming is completed, the top of the groove is left empty by driving the ejector component downward, and then air is injected into the top of the groove so that the air flows on the top of the groove, thereby quickly dissipating heat from the tray; after the heat dissipation is completed, the ejector component is pushed upward and gas is sprayed out. As the ejector component rises, the gas can lift the tray, improve the uniformity of the force on the tray, and reduce the damage to the tray when lifting it. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 3 This is a front sectional view of the present invention;

[0016] Figure 4 This is a three-dimensional structural diagram of the vacuum forming mold of this utility model;

[0017] Figure 5 This is a three-dimensional structural diagram of the ejector assembly of this utility model.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Vacuum forming mold; 11. Template; 12. Punch; 13. Groove assembly; 131. Center hole; 132. Annular groove; 133. Diameter groove; 134. Connecting groove; 14. Vent hole; 2. Ejector assembly; 21. Air pipe; 22. Ring; 23. Connecting rod; 24. Vent hole; 3. Drive assembly; 31. Base plate; 32. Electric actuator. Detailed Implementation

[0020] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0021] like Figure 1-3 As shown, a temperature-controlled thermoforming tray forming device includes a thermoforming mold 1 and an ejector assembly 2. The thermoforming mold 1 includes a template 11 and a punch 12. The punch 12 is fixedly connected to the top of the template 11. A groove 13 is provided on the top of the punch 12. The ejector assembly 2 is slidably connected inside the groove 13. A vent hole 14 is provided on the side wall of the groove 13. A drive assembly 3 for driving the ejector assembly 2 to rise and fall is provided between the bottom end of the ejector assembly 2 and the bottom end of the template 11.

[0022] According to the above structure, during use, the ejector component 2 is raised by the drive component 3, so that the surface of the punch 12 is complete. When producing the tray, the material is vacuum-formed onto the punch 12. After vacuum forming is completed, the ejector component 2 is driven downward to empty the top of the groove group 13. Then, air is injected into the top of the groove group 13, so that the air flows on the top of the groove group 13, thereby quickly dissipating heat from the tray. After heat dissipation is completed, the ejector component 2 is pushed upward to spray out gas, thereby lifting the tray from the punch 12, which facilitates the collection of the vacuum-formed tray.

[0023] like Figure 2-4 As shown, the groove group 13 includes a central hole 131 disposed in the middle of the punch 12. The bottom end of the central hole 131 penetrates the template 11. The top end of the punch 12 is provided with a plurality of concentric annular grooves 132. The top end of the punch 12 is provided with equidistant connecting grooves 134. The plurality of annular grooves 132 are connected to the central hole 131 through the connecting grooves 134. The side wall of the central hole 131 is provided with a diaphragm groove 133. One end of the vent hole 14 is connected to the outermost annular groove 132. The bottom end of the vent hole 14 penetrates the bottom end of the template 11.

[0024] According to the above structure, when cooling the tray, air is injected into the center hole 131 through the ejector component 2. The air flows through the connecting groove 134 in the annular groove 132 and is finally discharged through the exhaust hole 14, thereby forming an air flow circulation, which facilitates the cooling of the thermoformed tray.

[0025] like Figure 3-5As shown, the ejector assembly 2 includes a top-closed air tube 21 and several equally spaced rings 22. The rings 22 are slidably connected inside several annular grooves 132. The air tube 21 is slidably connected inside the central hole 131. A connecting rod 23 is slidably connected inside the connecting groove 134. The rings 22 are fixedly connected by the connecting rod 23. One end of the connecting rod 23 is fixedly connected to the side wall of the air tube 21. The top of the side wall of the air tube 21 is provided with evenly distributed air outlet holes 24.

[0026] According to the above structure, during vacuum forming, the air pipe 21, the ring 22, and the connecting rod 23 are raised, thus ensuring the top of the punch 12 is intact. After vacuum forming, the air pipe 21, the ring 22, and the connecting rod 23 are lowered. Then, air is injected into the air pipe 21, and the air is discharged through the air outlet 24 into the inner diameter groove 133. Then, it is conducted through the connecting groove 134 to the inner annular groove 132, and finally discharged through the exhaust hole 14. After cooling, the ejector assembly 2 is raised as a whole by the drive assembly 3. During the raising process, the air pipe 21 continues to spray gas. The gas is between the tray and the ejector assembly 2. As the ejector assembly 2 rises, the gas can lift the tray, improve the uniformity of the force on the tray, and reduce the damage to the tray when lifting it.

[0027] like Figure 3-5 As shown, the drive assembly 3 includes a base plate 31 fixedly connected to the bottom of the air tube 21. Electric push rods 32 are symmetrically arranged on the base plate 31, and the top end of the electric push rods 32 is fixedly connected to the bottom end of the template 11.

[0028] According to the above structure, when the ejector assembly 2 is raised and lowered, the base plate 31 is driven to descend and rise by the telescopic electric push rod 32, which in turn drives the air pipe 21 to rise and fall, ultimately realizing the overall raising and lowering of the ejector assembly 2.

[0029] The working principle of this utility model is as follows: During use, the ejector component 2 is raised by the drive component 3, thus making the surface of the punch 12 complete. During tray production, the material is vacuum-formed onto the punch 12. After vacuum forming, the ejector component 2 is driven downwards, leaving the top of the groove group 13 empty. Air is then injected into the top of the groove group 13, allowing the air to flow and quickly dissipate heat from the tray. After heat dissipation, the ejector component 2 is pushed upwards, lifting the tray from the punch 12 for easy collection of the vacuum-formed tray. During tray cooling, air is injected into the center hole 131 through the ejector component 2. The air flows through the connecting groove 134 within the annular groove 132 and is finally discharged through the exhaust hole 14. An airflow circulation is formed to facilitate cooling of the thermoforming tray. During thermoforming, the air pipe 21, ring 22, and connecting rod 23 are raised to ensure the top of the punch 12 is intact. After thermoforming, the air pipe 21, ring 22, and connecting rod 23 are lowered. Air is then injected into the air pipe 21 and discharged through the air outlet 24 into the inner diameter groove 133. The air is then conducted through the connecting groove 134 to the inner annular groove 132 and finally discharged through the exhaust hole 14. After cooling, the ejector assembly 2 is raised as a whole by the drive assembly 3, which can lift the tray. When raising and lowering the ejector assembly 2, the telescopic electric push rod 32 drives the base plate 31 to descend and rise, thereby driving the air pipe 21 to rise and fall, ultimately achieving the raising and lowering of the ejector assembly 2 as a whole.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A thermoformed blister tray forming apparatus comprising a blister mold (1) and an ejection assembly (2), characterized in that: The blister mold (1) comprises a mold plate (11) and a male die (12), the male die (12) is fixedly connected to the top end of the mold plate (11), the top of the male die (12) is provided with a groove group (13), the ejection assembly (2) is slidably connected in the groove group (13), the sidewall of the groove group (13) is provided with an exhaust hole (14), and the bottom end of the ejection assembly (2) and the bottom end of the mold plate (11) are provided with a driving assembly (3) for driving the ejection assembly (2) to ascend and descend.

2. A thermoformed blister tray forming apparatus as defined in claim 1, wherein: The groove group (13) comprises a center hole (131) arranged in the middle of the male die (12), the bottom end of the center hole (131) penetrates the mold plate (11), the top end of the male die (12) is provided with a plurality of concentric annular grooves (132), and the top end of the male die (12) is provided with equidistantly distributed communication grooves (134), a plurality of annular grooves (132) are communicated with the center hole (131) through the communication grooves (134).

3. A thermoformed blister tray forming apparatus as defined in claim 2, wherein: The sidewall of the center hole (131) is provided with a diameter-limiting groove (133), one end of the exhaust hole (14) is communicated with the outermost annular groove (132), and the bottom end of the exhaust hole (14) penetrates the bottom end of the mold plate (11).

4. A thermoformed blister tray forming apparatus as defined in claim 3, wherein: The ejection assembly (2) comprises a closed air pipe (21) at the top and a plurality of equidistantly distributed annular rings (22), a plurality of annular rings (22) are slidably connected in a plurality of annular grooves (132) respectively, and the air pipe (21) is slidably connected in the center hole (131).

5. A thermoformed blister tray forming apparatus as defined in claim 4, wherein: The inside of the communication groove (134) is slidably connected with a connecting rod (23), the annular ring (22) is fixedly connected through the connecting rod (23), and one end of the connecting rod (23) is fixedly connected with the sidewall of the air pipe (21).

6. A thermoformed blister tray forming apparatus as defined in claim 5, wherein: The top of the sidewall of the air pipe (21) is provided with uniformly distributed air outlets (24).

7. A thermoformed blister tray forming apparatus as defined in claim 6, wherein: The driving assembly (3) comprises a base plate (31) fixedly connected to the bottom of the air pipe (21), the base plate (31) is symmetrically provided with an electric push rod (32), and the top end of the electric push rod (32) is fixedly connected with the bottom end of the mold plate (11).

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