Plastic suction mold with self-falling function

Abstract

The utility model discloses a plastic uptake mould with a self-dropping function, which belongs to the technical field of plastic uptake moulds and comprises a lower mould and an upper mould arranged above the lower mould, a plurality of mounting columns are fixed at the bottom end of the lower mould in a rectangular array manner, a plastic uptake bin is arranged at the top end of the lower mould, and the mounting columns are arranged on the upper mould. A demolding plate is elastically arranged on the bottom wall of the plastic uptake bin, connecting pipes used for blowing and demolding are fixedly mounted at the top ends of the side walls of the multiple mounting columns, air inlet grooves communicating with the connecting pipes are formed in the inner walls of the mounting columns, and one-way valves are fixedly embedded in the air inlet grooves; according to the plastic uptake mold with the self-falling function, air is input into the demolding hole through the air conveying pipes and the connecting pipes, instant air is generated through rapid movement of the piston to extrude a plastic uptake part to automatically fall off from the lower mold, falling off through air separation and instant air blowing is facilitated, and the demolding effect of the plastic uptake mold is improved.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum forming mold technology, specifically relating to a vacuum forming mold with a self-detaching function. Background Technology

[0002] Vacuum forming molds refer to the molds used in vacuum forming production. The lowest cost molds are plaster molds, followed by electroplated copper molds, and the most expensive are aluminum molds. The molds have small holes for vacuum-adsorbing and heating rigid plastic sheets to form the vacuum-formed product. Refrigerator door foam molds require vacuum forming. After forming, because the foam material is tightly bonded to the inner wall of the mold, and because the foam material has low rigidity, directly pulling it out can easily damage it.

[0003] Patent application number 202121299847.6 discloses a thermoforming mold with a self-detaching function. The thermoforming mold with the self-detaching function includes: a mold body, on which multiple protrusions are provided, each protrusion including a bump and a detachment component. The bumps are integrally formed with the mold body, and the detachment component is disposed on the bump. The detachment component is used to facilitate the separation of the thermoforming floor heating clip from the thermoforming mold. The detachment component includes a top box, on which four elastic mechanisms are provided, arranged in a circular array.

[0004] The above technical solution utilizes a vacuum forming mold with a self-detaching function. By setting a detaching component, automatic demolding can be achieved solely by the gravity of the detaching component. However, due to the low texture and rigidity of the foam material, it cannot be detached by gravity. Directly pulling it out can easily damage the foam material. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a blister mold with a self-detaching function. The blister mold with a self-detaching function aims to solve the technical problem that, under the existing technology, due to the low texture and rigidity of the foam material, it is impossible to achieve detachment by gravity, and direct pulling out will easily damage the foam material.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides a blister mold with a self-detaching function. The blister mold with the self-detaching function includes a lower mold and an upper mold disposed above the lower mold. The bottom end of the lower mold is fixed with multiple mounting columns in a rectangular array, and the top end of the lower mold is provided with a blister chamber. The bottom wall of the blister chamber is elastically provided with a release template. The top end of the side walls of the multiple mounting columns is fixedly installed with a connecting pipe for blowing and demolding. The inner wall of the mounting column is provided with an air inlet groove communicating with the connecting pipe. A one-way valve is embedded in the air inlet groove.

[0009] When using this technical solution, a demolding hole is provided in the bottom wall of the lower mold's blister pack. A spring pushes the top of the piston to seal the demolding hole. After blistering, the blister parts in the upper and lower molds separate. The electromagnetic plate is activated to attract the magnetic metal rod, and after attraction, the piston moves to the bottom of the air inlet slot. Air is introduced into the demolding hole through multiple air inlets via the air supply pipe and connecting pipe, thereby blowing the blister parts away from the lower mold. After separation, the electromagnet is turned off, and the spring force pushes the piston to move upward quickly to seal the demolding hole. The rapid movement of the piston generates instantaneous air to compress the blister parts and automatically detach them from the lower mold. The one-way valve prevents instantaneous air leakage, facilitating detachment through air separation and instantaneous air blowing, thus improving the demolding effect of the blister mold.

[0010] Preferably, a first sealing ring is fixedly protruding from the top of the lower mold, and the top of the first sealing ring is tightly connected to the upper mold.

[0011] Furthermore, the top of the mounting column is provided with a telescopic groove, and the bottom wall of the blister pack is provided with a demolding hole that communicates with the telescopic groove.

[0012] Furthermore, an electromagnet is embedded and fixed in the bottom wall of the telescopic groove, and a piston fixed to the ejector plate is provided in the telescopic groove, wherein a spring is installed in the telescopic groove to abut against the piston.

[0013] Furthermore, a second sealing ring is embedded and fixed at the bottom of the outer wall of the piston, and the second sealing ring is tightly connected to the inner wall of the telescopic groove.

[0014] Furthermore, a magnetic metal rod is fixedly installed at the bottom end of the piston, and the magnetic metal rod passes through the spring and is attracted and fixed to the electromagnet.

[0015] Furthermore, the air intake groove is located below the piston, and an air supply pipe is fixedly installed between the multiple connecting pipes.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention features a demolding hole in the bottom wall of the lower mold's vacuum forming chamber. A spring pushes the top of the piston to seal the demolding hole. After vacuum forming, the vacuum-formed part separates from the upper mold and the lower mold. An electromagnetic plate is activated to attract the magnetic metal rod, and after attraction, the piston moves to below the air inlet slot. Air is introduced into the demolding hole through multiple air inlets via air supply pipes and connecting pipes, thereby blowing the vacuum-formed part away from the lower mold. After separation, the electromagnet is deactivated, and the spring force pushes the piston upward to quickly seal the demolding hole. The rapid movement of the piston generates instantaneous air pressure, causing the vacuum-formed part to automatically detach from the lower mold. A one-way valve prevents instantaneous air leakage, facilitating detachment through air separation and instantaneous air blowing, thus improving the demolding effect of the vacuum forming mold. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the lower mold in this utility model;

[0022] Figure 3 This is a cross-sectional view of the lower mold in this utility model;

[0023] Figure 4 This utility model Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0024] The markings in the attached diagram are as follows: 1. Lower mold; 2. Demolding mold; 3. First sealing ring; 4. Upper mold; 5. Connecting pipe; 6. Mounting column; 7. Air supply pipe; 8. Blister compartment; 9. Air inlet groove; 10. Second sealing ring; 11. Demolding hole; 12. Piston; 13. Spring; 14. Magnetic metal rod; 15. Electromagnet; 16. Telescopic groove; 17. One-way valve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This specific embodiment is a vacuum forming mold with a self-detaching function, and its structural schematic diagram is shown below. Figure 1 and Figure 2 As shown, the self-detaching blister mold includes a lower mold 1 and an upper mold 4 disposed above the lower mold 1. The bottom end of the lower mold 1 is fixed with multiple mounting posts 6 in a rectangular array, and the top end of the lower mold 1 is provided with a blister chamber 8. The bottom wall of the blister chamber 8 is elastically provided with a piston 12. The top end of the side walls of the multiple mounting posts 6 are all fixedly installed with connecting pipes 5 for blowing and demolding. The inner wall of the mounting posts 6 is provided with an air inlet groove 9 that communicates with the connecting pipes 5. A one-way valve 17 is embedded and fixed in the air inlet groove 9.

[0027] The air inlet groove 9 is located below the piston 12. An air supply pipe 7 is fixedly installed between multiple connecting pipes 5. The bottom end of the air supply pipe 7 is connected to the air input device of the air pump. The top of the lower mold 1 is fixed with a first sealing ring 3. The top of the first sealing ring 3 is tightly connected to the upper mold 4. The top of the mounting column 6 is provided with a telescopic groove 16. The bottom wall of the blister pack 8 is provided with a demolding hole 11 that communicates with the telescopic groove 16. The spring 13 pushes the top of the piston 12 to seal the demolding hole 11. After the blister processing, the upper mold 4 and the blister part in the lower mold 1 are separated. The electromagnetic plate is activated to attract the magnetic metal rod 14, and after attraction, the piston 12 moves to the bottom of the air inlet groove 9.

[0028] like Figure 3 and Figure 4 As shown, an electromagnet 15 is embedded and fixed in the bottom wall of the telescopic groove 16, and a piston 12 fixed to the demolding mold 2 is provided in the telescopic groove 16. A spring 13 is installed in the telescopic groove 16 to abut against the piston 12. A second sealing ring 10 is embedded and fixed in the bottom of the outer wall of the piston 12. The second sealing ring 10 is tightly connected to the inner wall of the telescopic groove 16. A magnetic metal rod 14 is fixedly installed at the bottom of the piston 12. The magnetic metal rod 14 passes through the spring 13 and is attracted and fixed to the electromagnet 15. The air supply pipe 7 and the connecting pipe 5 allow multiple air inlets 9 to input air into the demolding hole 11, thereby blowing the thermoformed part to separate from the lower mold 1. After separation, the electromagnet 15 is closed. The elastic force of the spring 13 pushes the piston 12 to move upward quickly to seal the demolding hole 11. The rapid movement of the piston 12 generates instantaneous air to squeeze the thermoformed part and automatically detach it from the lower mold 1.

[0029] Working principle: When using the device of this technical solution, the upper mold 4 and the lower mold 1 connected to each other are vacuum formed. During vacuum forming, the spring 13 pushes the top of the piston 12 to seal the demolding hole 11. After vacuum forming, the vacuum-formed part in the upper mold 4 and the lower mold 1 are separated. The electromagnetic plate is activated and attracted to the magnetic metal rod 14. After attraction, the piston 12 is moved to the bottom of the air inlet groove 9. The air supply pipe 7 and the connecting pipe 5 allow air to be input into the demolding hole 11 through multiple air inlet grooves 9, thereby blowing the vacuum-formed part to separate from the lower mold 1. After separation, the electromagnet 15 is closed. The elastic force of the spring 13 pushes the piston 12 to move upward quickly to seal the demolding hole 11. The rapid movement of the piston 12 generates instantaneous air to squeeze the vacuum-formed part to automatically fall out of the lower mold 1. The one-way valve 17 avoids instantaneous air leakage, which facilitates the demolding effect of the vacuum forming mold through air separation and instantaneous air blowing.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thermoforming mold with a self-detaching function, the thermoforming mold comprising a lower mold (1) and an upper mold (4) disposed above the lower mold (1), characterized in that, The bottom end of the lower mold (1) is fixed with multiple mounting columns (6) in a rectangular array, and the top end of the lower mold (1) is provided with a blister pack (8). The bottom wall of the blister pack (8) is elastically provided with a demolding template (2). The top end of the side wall of the multiple mounting columns (6) is fixedly installed with a connecting pipe (5) for blowing demolding. The inner wall of the mounting column (6) is provided with an air inlet groove (9) that communicates with the connecting pipe (5). A one-way valve (17) is embedded in the air inlet groove (9).

2. The thermoforming mold with self-detaching function according to claim 1, characterized in that, The top of the lower mold (1) is fixed with a first sealing ring (3), and the top of the first sealing ring (3) is tightly connected to the upper mold (4).

3. The vacuum forming mold with self-detaching function according to claim 1, characterized in that, The top of the mounting column (6) is provided with a telescopic groove (16), and the bottom wall of the blister pack (8) is provided with a demolding hole (11) that communicates with the telescopic groove (16).

4. A vacuum forming mold with a self-detaching function according to claim 3, characterized in that, An electromagnet (15) is embedded in the bottom wall of the telescopic groove (16), and a piston (12) fixed to the ejector plate (2) is provided in the telescopic groove (16), wherein a spring (13) abuts against the piston (12) is installed in the telescopic groove (16).

5. A vacuum forming mold with a self-detaching function according to claim 4, characterized in that, The piston (12) has a second sealing ring (10) embedded in the bottom of its outer wall, and the second sealing ring (10) is tightly connected to the inner wall of the telescopic groove (16).

6. A vacuum forming mold with a self-detaching function according to claim 5, characterized in that, A magnetic metal rod (14) is fixedly installed at the bottom end of the piston (12), and the magnetic metal rod (14) passes through the spring (13) and is attracted and fixed to the electromagnet (15).

7. A vacuum forming mold with a self-detaching function according to claim 1, characterized in that, The air inlet groove (9) is located below the piston (12), and an air supply pipe (7) is fixedly installed between the multiple connecting pipes (5).

Images