Simplified plastic suction mold mechanism

Abstract

The utility model relates to the field of plastic suction molds, in particular to a simplified plastic suction mold mechanism which comprises a main mold, side molds symmetrically arranged on the two sides of the main mold and female molds arranged on the two faces of the main mold, a liquid injection pipe is fixedly connected to the top end of the main mold, and a liquid discharge pipe is fixedly connected to the top end of the main mold. The male die is fixedly arranged on the surface of the side die, the male die is matched with the female die in size, and at least two air suction holes are formed in the surface of the male die. The positions of the female die and the male die are exchanged, so that the position of the die jacking mechanism is changed, and the situation that plastic uptake operation on the other side is stopped due to the fact that the die jacking mechanism on one side is damaged during bidirectional die jacking is avoided; and the side mold on the other side can still carry out plastic uptake operation normally, so that normal production is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of vacuum forming molds, and in particular to a simplified vacuum forming mold mechanism. Background Technology

[0002] High-pressure vacuum forming molds are molds used in high-pressure vacuum forming processes. High-pressure vacuum forming is a plastic processing technique that involves heating a flat, rigid plastic sheet until it softens, then using vacuum to adhere it to the surface of a mold, where it cools and solidifies.

[0003] Existing vacuum forming molds involve two demolding processes, one upper and one lower. While this improves production efficiency, the top mold mechanism is located inside the middle mold plate. After vacuum forming, the molded product needs to be ejected from both sides. When one side of the top mold mechanism malfunctions, it will affect the operation of the other side's top mold, and the repair process will also cause the vacuum forming operation to stop, thus affecting production efficiency. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing the following technical solution:

[0005] A simplified thermoforming mold mechanism includes: a main mold, wherein side molds are symmetrically arranged on both sides of the main mold;

[0006] The main mold has concave molds on both sides, and the top of the main mold is fixedly connected to a liquid injection pipe and a liquid drain pipe.

[0007] A punch is fixedly mounted on the surface of the side mold. The punch is sized to match the die. At least two air suction holes are provided on the surface of the punch. A top plate is provided on the surface of the punch.

[0008] A fixing plate is fixedly provided on the side of the side mold away from the punch. The surface of the fixing plate is provided with an exhaust hole, which is connected to the suction hole.

[0009] As an improvement to the above technical solution, a through groove is provided inside the exhaust hole, and a telescopic rod is provided inside the through groove. The top end of the telescopic rod is fixedly connected to the top plate.

[0010] As an improvement to the above technical solution, a cooling layer is provided inside the main mold, and the cooling layer is connected to the bottom of the injection pipe and the drain pipe.

[0011] As an improvement to the above technical solution, a connecting block is fixedly provided at the top of the main mold, and a connecting arm is fixedly connected above the connecting block by bolts.

[0012] As an improvement to the above technical solution, the side mold is fixedly connected to the fixing plate by bolts, and the fixing plate is provided with connecting bolts away from the side mold.

[0013] The beneficial effects of this utility model are:

[0014] By swapping the positions of the concave and convex molds, the position of the ejector mechanism changes, preventing damage to one ejector mechanism from affecting the other side's thermoforming operation and causing a standstill in bidirectional ejector molding. When one side mold is damaged and cannot work and needs maintenance, the other side mold can still perform thermoforming operations normally without affecting normal production. The design of the cooling layer cools the thermoformed product for rapid shaping, and the design of the injection and drainage pipes allows the coolant in the cooling layer to circulate and improve cooling efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the side mold in this utility model;

[0017] Figure 3 This is a schematic diagram of the main mold in this utility model;

[0018] Figure 4 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0020] Reference numerals: 1. Main mold; 101. Cavity mold; 102. Injection pipe; 103. Drain pipe; 104. Cooling layer; 105. Connecting block; 2. Side mold; 201. Punch mold; 202. Suction hole; 203. Top plate; 3. Fixing plate; 301. Exhaust hole; 302. Through groove; 4. Telescopic rod; 5. Connecting arm. Detailed Implementation

[0021] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0022] Existing vacuum forming molds involve two demolding processes, one upper and one lower. While this improves production efficiency, the top mold mechanism is located inside the middle mold plate. After vacuum forming, the molded product needs to be ejected from both sides. When one side of the top mold mechanism malfunctions, it will affect the operation of the other side's top mold, and the repair process will also cause the vacuum forming operation to stop, thus affecting production efficiency.

[0023] To resolve this issue, please refer to [link / reference]. Figure 1-5 A simplified thermoforming mold mechanism includes: a main mold 1, on both sides of the main mold 1, side molds 2 are symmetrically arranged;

[0024] The main mold 1 has two concave molds 101 on both sides, and the main mold 1 has a liquid injection pipe 102 fixedly connected to the top end and a liquid drain pipe 103 fixedly connected to the top end.

[0025] A punch 201 is fixedly disposed on the surface of the side mold 2. The punch 201 is matched in size with the die 101. At least two air suction holes 202 are opened on the surface of the punch 201. A top plate 203 is disposed on the surface of the punch 201.

[0026] A fixing plate 3 is fixedly provided on the side of the side mold 2 away from the punch 201. The surface of the fixing plate 3 is provided with an exhaust hole 301, which is connected to the suction hole 202.

[0027] In use, the fixing plate 3 is installed on the machine using connecting bolts, and then the machine above is fixedly connected to the connecting arm 5 to perform vacuum forming. The side molds 2 on both sides move in opposite directions and close with the main mold 1. The punch 201 extends into the concave mold 101 to extrude and plasticize. The vacuum pump evacuates the air in the soft plastic. The air is drawn in through the air intake 202 and discharged through the exhaust 301, creating a vacuum between the soft plastic and the punch 201. Due to the high pressure of the vacuum, the soft plastic quickly covers the surface of the punch 201, completing the vacuum forming operation. The coolant is injected into the main mold 1 through the injection pipe 102 to cool the mold and then discharged through the drain pipe 103, which allows the coolant to circulate and improve the cooling efficiency.

[0028] In one embodiment, see Figure 4-5 The exhaust port 301 has a through groove 302 inside, and a telescopic rod 4 is installed inside the through groove 302. The top end of the telescopic rod 4 is fixedly connected to the top plate 203.

[0029] In use, the vent 301 is used to expel air. After the vacuum forming and cooling operations are completed, the telescopic rod 4 pushes out the top plate 203. The molded plastic mold is pushed away from the surface of the punch 201 by the top plate 203, thus completing the demolding of the plastic mold.

[0030] In one embodiment, see Figure 3-4 The main mold 1 is provided with a cooling layer 104 inside, and the cooling layer 104 is connected to the bottom of the injection pipe 102 and the drain pipe 103.

[0031] In use, coolant is injected into the cooling layer 104 through the injection pipe 102 to cool the thermoformed product for quick shaping. The design of the injection pipe 102 and the drain pipe 103 allows the coolant in the cooling layer 104 to circulate and cool, improving cooling efficiency.

[0032] In one embodiment, see Figure 3 A connecting block 105 is fixedly installed at the top of the main mold 1, and a connecting arm 5 is fixedly connected to the top of the connecting block 105 by bolts.

[0033] In use, the connecting arm 5 is fixed to the connecting block 105 with bolts, and then the connecting arm 5 is installed and fixed to the machine above to support and fix the main mold 1, so as to prevent the main mold 1 from shaking during the vacuum forming operation and causing defects in the vacuum forming product.

[0034] In one embodiment, see Figure 1-2 The side mold 2 is fixedly connected to the fixing plate 3 by bolts, and the fixing plate 3 is provided with connecting bolts away from the side mold 2.

[0035] In use, the fixing plate 3 is installed and fixed to the machines on both sides using connecting bolts to fix the side mold 2 and increase stability.

[0036] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A simplified vacuum forming mold mechanism, characterized in that, include: The main mold (1) has side molds (2) symmetrically arranged on both sides of the main mold (1); The main mold (1) has two concave molds (101) on both sides, and the main mold (1) has a liquid injection pipe (102) fixedly connected to the top end of the main mold (1) and a liquid drain pipe (103) fixedly connected to the top end of the main mold (1). A punch (201) is fixedly disposed on the surface of the side mold (2). The punch (201) is matched in size with the die (101). At least two suction holes (202) are opened on the surface of the punch (201). A top plate (203) is provided on the surface of the punch (201). A fixing plate (3) is fixedly provided on the side of the side mold (2) away from the punch (201). The surface of the fixing plate (3) is provided with an exhaust hole (301), which is connected to the suction hole (202).

2. The simplified vacuum forming mold mechanism according to claim 1, characterized in that: The exhaust port (301) has a through groove (302) inside, and a telescopic rod (4) is provided inside the through groove (302). The top end of the telescopic rod (4) is fixedly connected to the top plate (203).

3. A simplified vacuum forming mold mechanism according to claim 1, characterized in that: The main mold (1) is provided with a cooling layer (104) inside, and the cooling layer (104) is connected to the bottom of the injection pipe (102) and the drain pipe (103).

4. A simplified vacuum forming mold mechanism according to claim 1, characterized in that: A connecting block (105) is fixedly provided at the top of the main mold (1), and a connecting arm (5) is fixedly connected above the connecting block (105) by bolts.

5. A simplified vacuum forming mold mechanism according to claim 1, characterized in that: The side mold (2) is fixedly connected to the fixing plate (3) by bolts, and the fixing plate (3) is provided with connecting bolts away from the side mold (2).

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