Automatic demolding device for plastic suction mold

Abstract

The utility model provides an automatic demolding device for a plastic uptake mold, and relates to the technical field of plastic uptake molds, the automatic demolding device comprises a lower mold, a blowing component and a cooling component; a cavity is formed in the lower mold, and air holes communicating with the cavity are formed in the lower mold cavity at equal intervals; the blowing component comprises an air pump arranged at the bottom of the lower mold, and an air pipe communicated with the cavity is arranged at the output end of the air pump; the cooling component comprises a cooling water fence which is arranged in the cavity and can avoid all the air holes, and the two ends of the cooling water fence communicate with a water inlet channel and a water drainage channel which extend to the outer side of the lower mold correspondingly. According to the pneumatic demolding device, an original negative pressure air exhaust mechanism is adopted for reverse air blowing, pneumatic demolding of the finished product is achieved, the use cost is low, and the mechanical abutting force on the finished product is also reduced.

Description

Technical Field

[0001] The present application relates to the technical field of blister molds, and in particular to an automatic demoulding device for blister molds. Background Art

[0002] Blister mold refers to the mold used in blister production. The cheapest one is the plaster mold, followed by the electroplated copper mold, and the most expensive one is the aluminum mold. The mold is drilled with small holes for vacuum adsorption of heated hard plastic sheets to form blister products.

[0003] In the past, during the use of the blister mold, the finished product is nested in the mold, so that the finished product model adheres to the outer end surface of the mold and is difficult to remove;

[0004] For this purpose, there are also, for example, Chinese utility model patent application number CN202121716304.X, which discloses a quick-demolding engineering plastic blister mold, and Chinese utility model patent application number CN202320908276.4, which discloses a blister mold that is easy to demold. Both of them propose to use a stripping method combining an electric push rod and an ejection block to realize the demolding of the blister product, but this mechanical demolding method is likely to cause wear of the finished product, and the cost of use is also relatively high. Summary of the invention

[0005] In order to overcome the existing deficiencies, the embodiment of the present application provides an automatic demoulding device for a blister mold, which adopts the original negative pressure suction mechanism for reverse blowing to achieve pneumatic demoulding of the finished product. The cost of use is low and the mechanical pressure on the finished product is also reduced.

[0006] The technical solution adopted by the embodiment of the present application to solve the technical problem is: an automatic demoulding device for a blister mold, comprising a lower mold, a blowing component and a cooling component;

[0007] A cavity is provided inside the lower mold, and air holes communicating with the cavity are provided in the mold cavity of the lower mold at equal distances;

[0008] The blowing component comprises an air pump arranged at the bottom of the lower mold, and an air pipe connected to the cavity is arranged on the output end of the air pump;

[0009] The cooling component comprises a cooling water enclosure which is arranged in the cavity and can avoid all the air holes, and two ends of the cooling water enclosure are respectively connected with a water inlet channel and a drainage channel which extend to the outside of the lower mold.

[0010] Furthermore, the two side walls of the cooling water enclosure are designed to be circuitously curved along the air hole, and the inner cavity space thereof is not connected to the air hole.

[0011] Furthermore, the water inlet channel is connected to a spiral tube wound around the outer wall of the trachea.

[0012] Furthermore, semiconductor cooling plates are installed on both outer side walls of the lower mold.

[0013] Furthermore, the input end of the air pump is connected to a filter element;

[0014] The filter element comprises a shell which is arranged on the lower surface of the lower mold and is connected to the air pump input end. A filter screen is installed inside the shell, and one end of the shell away from the air pump input end is open to the outside.

[0015] Furthermore, the automatic demoulding device for the blister mold also includes a base and an upper mold, a cylinder is installed on the upper surface of the base, the piston end of the cylinder is connected to the lower surface of the lower mold, guide rods are connected at the four corners of the upper surface of the base, the top of the guide rod is connected to the lower surface of the upper mold, and through holes for the guide rods to pass through are opened at the four corners of the lower mold.

[0016] The advantages of the embodiments of the present application are:

[0017] A cooling water enclosure is arranged in the cavity originally used for flowing suction gas, such as Figure 2 and Figure 3 As shown, during demoulding, the cooling water is circulated and injected into the inner cavity of the cooling water enclosure by using the water inlet channel, the drainage channel and the external cold water tank in advance to cool the finished blister product. After cooling for a certain period of time, the air pump is controlled to blow air, and the external air is introduced into the cavity through the air pipe. The air holes are distributed along the cooling water enclosure. The cavity is radiated by the cold air of the cooling water enclosure, so that the air blown out through the air holes is cooler, which is more conducive to the smooth demoulding of the finished product. This application adopts the original negative pressure suction mechanism for reverse blowing to achieve pneumatic demoulding of the finished product, which has a low cost of use and also reduces the mechanical pressure on the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of an automatic demoulding device for a blister mold provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the structure of the lower mold provided in the embodiment of the present application after longitudinal sectioning;

[0020] Figure 3 A schematic diagram of the structure of the bottom of the lower mold after being cut open provided in an embodiment of the present application;

[0021] Figure 4 Provided for the implementation of this application Figure 1 A in the figure is a local enlargement;

[0022] Figure 5 A structural schematic diagram of the connection relationship between the filter element and the air pump provided in an embodiment of the present application.

[0023] In the figure: 1-lower mold; 11-cavity; 12-air hole; 2-blowing component; 21-air pump; 22-air pipe; 3-cooling component; 31-cooling water enclosure; 32-water inlet channel; 33-drainage channel; 34-spiral tube; 35-semiconductor cooling plate; 4-base; 5-upper mold; 6-cylinder; 7-guide rod; 8-filter element; 81-housing; 82-filter net. DETAILED DESCRIPTION

[0024] The technical solution in the embodiment of the present application is to solve the problem that mechanical demoulding in the above solution is easy to damage the finished product and has high use cost. The overall idea is as follows:

[0025] Embodiment 1:

[0026] See also Figure 1-Figure 5 , an automatic demoulding device for a blister mold, comprising a lower mold 1, a blowing component 2 and a cooling component 3;

[0027] A cavity 11 is formed inside the lower mold 1, and air holes 12 connected to the cavity 11 are formed in the mold cavity of the lower mold 1 at equal distances.

[0028] The blowing member 2 comprises an air pump 21 disposed at the bottom of the lower mold 1, and an air pipe 22 connected to the cavity 11 is disposed at the output end of the air pump 21;

[0029] The cooling component 3 includes a cooling water enclosure 31 disposed in the cavity 11 and avoiding all the air holes 12 . Both ends of the cooling water enclosure 31 are respectively connected with a water inlet channel 32 and a drainage channel 33 extending to the outside of the lower mold 1 .

[0030] In this embodiment, a cooling water enclosure 31 is arranged in the cavity 11 originally used for flowing the suction gas. Figure 2 and Figure 3 As shown, during demoulding, the cooling water is circulated and injected into the inner cavity of the cooling water enclosure 31 by using the water inlet channel 32, the drainage channel 33 and the external cold water tank in advance to cool the finished blister product. After cooling for a certain period of time, the air pump 21 is controlled to blow air, and the external air is introduced into the cavity 11 through the air pipe 22. The cavity 11 is radiated by the cold air of the cooling water enclosure 31, so that the air blown out through the air hole 12 is cooler, which is more conducive to the smooth demoulding of the finished product. The present application adopts the original negative pressure suction mechanism for reverse blowing to achieve pneumatic demoulding of the finished product, which has a low cost of use and also reduces the mechanical pressure on the finished product.

[0031] The cooling water enclosure 31 has two side walls that are designed to be tortuous along the air hole 12, and its inner cavity space is not connected to the air hole 12. Figure 3As shown, all the air holes 12 are arranged in a rectangular array, and the cooling water enclosure 31 is bent along the arrangement direction of the air holes 12. Such a design allows the cold air radiated outward from the cooling water enclosure 31 to affect the surrounding air holes 12 more quickly, making it easier to blow out cooler air for demolding, and achieving a better demolding effect.

[0032] The water inlet channel 32 is connected to a spiral tube 34 wound around the outer wall of the air pipe 22. Specifically, the design of the spiral tube 34 wound around the air pipe 22 is conducive to pre-cooling the air sucked into the air pipe 22, which is more conducive to the blowing demoulding of the present application.

[0033] Semiconductor cooling sheets 35 are installed on both outer side walls of the lower mold 1. The design of the semiconductor cooling sheets 35 facilitates further cooling of the space in the cavity 11 of the lower mold 1, which indirectly facilitates the use of low-temperature air for film blowing and achieves smooth demoulding.

[0034] The input end of the air pump 21 is connected to a filter element 8;

[0035] The filter element 8 includes a housing 81 disposed on the lower surface of the lower mold 1 and connected to the input end of the air pump 21. A filter screen 82 is installed inside the housing 81. The end of the housing 81 away from the input end of the air pump 21 is open to the outside. Specifically, the interception and filtration of the filter screen 82 can prevent external impurities from indirectly entering the air hole 12, effectively preventing the probability of the air hole 12 being blocked.

[0036] The automatic demoulding device for the blister mold also includes a base 4 and an upper mold 5. A cylinder 6 is installed on the upper surface of the base 4. The piston end of the cylinder 6 is connected to the lower surface of the lower mold 1. The four corners of the upper surface of the base 4 are connected to guide rods 7. The top of the guide rod 7 is connected to the lower surface of the upper mold 5, and the four corners of the lower mold 1 are opened with through holes for the guide rods 7 to pass through. Specifically, the heated blister sheet is transferred between the upper mold 5 and the lower mold 1, the cylinder 6 is started to push the lower mold 1 upward, and the air pump 21 is controlled to evacuate air so that the sheet is deformed into a desired shape.

[0037] When using this application:

[0038] A cooling water enclosure 31 is arranged in the cavity 11 originally used for flowing the suction gas, such as Figure 2 and Figure 3As shown, during demoulding, the cooling water is circulated and injected into the inner cavity of the cooling water enclosure 31 by using the water inlet channel 32, the drainage channel 33 and the external cold water tank in advance to realize the cooling of the blister finished product. After cooling for a certain period of time, the air pump 21 is controlled to blow air, and the spiral tube 34 is coiled on the air pipe 22 to facilitate the pre-cooling of the air sucked into the air pipe 22. The external air is introduced into the cavity 11 through the air pipe 22. The cavity 11 is radiated by the cold air of the cooling water enclosure 31, so that the air blown out through the air hole 12 is cooler, which is more conducive to the smooth demoulding of the finished product. The present application adopts the original negative pressure suction mechanism for reverse blowing to realize the pneumatic demoulding of the finished product, which has a low cost of use and also reduces the mechanical pressure on the finished product.

[0039] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present application, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present application.

Claims

1. An automatic demoulding device for a blister mold, characterized in that: include: The lower mold (1) has a cavity (11) formed therein, and the cavity of the lower mold (1) has equidistantly formed air holes (12) in communication with the cavity (11); A blowing component (2) comprising an air pump (21) arranged at the bottom of the lower mold (1), wherein an air pipe (22) communicating with the cavity (11) is provided at the output end of the air pump (21); The cooling component (3) comprises a cooling water enclosure (31) which is arranged in the cavity (11) and can avoid all the air holes (12), and the two ends of the cooling water enclosure (31) are respectively connected to a water inlet channel (32) and a drainage channel (33) extending to the outside of the lower mold (1).

2. The automatic demoulding device for the blister mold according to claim 1, characterized in that: The cooling water enclosure (31) has two side walls designed to be curved along the air hole (12), and its inner cavity space is not connected to the air hole (12).

3. The automatic demoulding device for the blister mold according to claim 1, characterized in that: The water inlet channel (32) is connected to a spiral tube (34) wound around the outer wall of the air pipe (22).

4. The automatic demoulding device for the blister mold according to claim 1, characterized in that: Semiconductor cooling sheets (35) are installed on both outer side walls of the lower mold (1).

5. The automatic demoulding device for the blister mold according to claim 1, characterized in that: The input end of the air pump (21) is connected to a filter element (8); The filter element (8) comprises a shell (81) disposed on the lower surface of the lower mold (1) and connected to the input end of the air pump (21), a filter screen (82) being installed inside the shell (81), and an end of the shell (81) away from the input end of the air pump (21) is open to the outside.

6. The automatic demoulding device for the blister mold according to claim 1, characterized in that: It also includes a base (4) and an upper mold (5), wherein a cylinder (6) is installed on the upper surface of the base (4), and the piston end of the cylinder (6) is connected to the lower surface of the lower mold (1), and guide rods (7) are connected at the four corners of the upper surface of the base (4), and the top end of the guide rod (7) is connected to the lower surface of the upper mold (5), and through holes for the guide rods (7) to pass through are opened at the four corners of the lower mold (1).

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