Cryopreserved pipe cap forming mold

Abstract

The utility model discloses a frozen pipe cap forming die, which relates to the technical field of pipe cap processing and comprises a lower die, an upper die holder arranged at the upper end of the lower die and an upper die arranged in the upper die holder. A cooling groove is formed between the outer side of the copper plate and the inner wall of the upper die base, the front side and the rear side of the upper die base are fixedly connected with water conveying pipes communicating with the cooling groove, two fixing grooves are formed in the top end of the inner side of the upper die base, and fixing blocks are inserted into the fixing grooves; a second fixing hole is formed in the right side of the fixing block in a penetrating mode, a first fixing hole consistent with the second fixing hole in size is formed in the right side of the upper mold base in a penetrating mode, and the first fixing hole communicates with the center of the fixing groove. Cooling forming of plastic raw materials is accelerated, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cap processing, in particular to a forming die for cryopreservation tube caps. Background Art

[0002] A cryopreservation tube cap refers to a lid or cap used to seal the top of a cryopreservation tube, which is usually used to store biological samples, cell cultures, etc. in laboratories or biomedical research. Cryopreservation tube caps are usually made of plastic or rubber materials that are resistant to high and low temperatures, and have good sealing properties and chemical resistance. These caps usually have a threaded design that can perfectly match the tube body of the cryopreservation tube to ensure that the sample is not contaminated or oxidized from the outside during cryopreservation, and at the same time prevent sample leakage. Currently, most cryopreservation tube caps are made by injection molding.

[0003] The existing molds have a relatively slow cooling rate after injection molding, resulting in reduced production efficiency. At the same time, when making cryopreservation tube caps of different sizes, different-sized molds need to be replaced, which is rather cumbersome to operate. Summary of the Utility Model

[0004] To solve the above technical problems, a forming die for cryopreservation tube caps is provided. This technical solution solves the problems in the above background art that the existing molds have a relatively slow cooling rate after injection molding, resulting in reduced production efficiency, and when making cryopreservation tube caps of different sizes, different-sized molds need to be replaced, which is rather cumbersome to operate.

[0005] To achieve the above purposes, the technical solution adopted by the utility model is as follows:

[0006] A forming die for cryopreservation tube caps includes a lower die, an upper die base arranged at the upper end of the lower die, and an upper die arranged inside the upper die base. A circular copper plate for heat conduction is fixedly connected inside the upper die base. A cooling groove is formed between the outer side of the copper plate and the inner wall of the upper die base. Water pipes communicating with the cooling groove are fixedly connected to both the front and rear sides of the upper die base. Two fixing grooves are opened at the top end inside the upper die base. A fixing block is inserted into the fixing groove. The upper die is fixedly connected to the lower end of the fixing block. A second fixing hole is penetrated through the right side of the fixing block. A first fixing hole with the same size as the second fixing hole is penetrated through the right side of the upper die base. The first fixing hole communicates with the center of the fixing groove.

[0007] Preferably, a mold cavity is opened at the lower end of the upper die.

[0008] Preferably, docking holes are opened at the four corners of the lower end of the upper die base, and docking blocks are fixedly arranged on both the front and rear sides of the upper die base.

[0009] Preferably, a threaded groove is opened in the middle of the upper end of the lower die, a threaded rod is threadedly connected inside the threaded groove, and a mold core is fixedly connected to the upper end of the threaded rod.

[0010] Preferably, a docking rod is fixedly connected to the corresponding position of the upper end of the lower mold and the docking hole, and two connecting blocks are fixedly connected to both the front and rear sides of the lower mold. Through holes are formed through the right sides of the connecting blocks and the docking blocks.

[0011] Preferably, a first fixing pin is inserted into the through hole.

[0012] Preferably, a second fixing pin is inserted into the first fixing hole and the second fixing hole.

[0013] Preferably, the ends of the first fixing pin and the second fixing pin are both threaded, and nuts are threadedly connected to the ends of the first fixing pin and the second fixing pin.

[0014] Preferably, a material injection pipe communicating with the mold cavity is fixedly connected to the middle of the upper end of the upper mold base.

[0015] The beneficial effects of the present utility model compared with the prior art are as follows:

[0016] This solution proposes a forming mold for a cryopreservation tube cap. After injection molding, water is injected into the cooling tank through a water pipe on one side, and heat conduction is carried out by means of a copper plate, so that heat exchange occurs between the plastic raw material in the mold cavity and the water, thereby accelerating the cooling and forming of the plastic raw material and improving the production efficiency.

[0017] In this solution, the mold core can be disassembled by rotation, and at the same time, by pulling out the second fixing pin, the fixing block can be separated from the fixing groove, thereby disassembling the upper mold. By disassembling and replacing the mold cores with different diameters and the upper molds with mold cavities of different sizes, the manufacturing of cryopreservation tube caps of different sizes can be adapted, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the present utility model;

[0019] Figure 2 is a schematic structural view of the lower mold of the present utility model;

[0020] Figure 3 is a schematic structural view of the upper mold base of the present utility model;

[0021] Figure 4 is a schematic structural view of the upper mold of the present utility model;

[0022] Figure 5 is a schematic connection view of the material injection pipe of the present utility model;

[0023] Figure 6 is a schematic connection view of the water pipe of the present utility model.

[0024] The reference numerals in the drawings are:

[0025] 1. Upper die holder; 101. Fixed groove; 102. First fixing hole; 103. Copper plate; 104. Cooling groove; 105. Docking hole; 106. Docking block;

[0026] 2. Lower die; 201. Threaded groove; 202. Threaded rod; 203. Die core; 204. Docking rod; 205. Connecting block; 206. Through hole;

[0027] 3. Upper die; 301. Fixed block; 302. Second fixing hole; 303. Die cavity;

[0028] 4. First fixing pin; 5. Second fixing pin; 6. Nut; 7. Water delivery pipe; 8. Injection pipe. Specific implementation manner

[0029] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0030] Refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 6 As shown in

[0031] At the four corners of the lower end of the upper mold base 1, docking holes 105 are provided, and docking blocks 106 are fixedly arranged on both the front and rear sides of the upper mold base 1.

[0032] Refer to Figure 1 , Figure 2 and Figure 3 As shown, in the middle of the upper end of the lower mold 2, a threaded groove 201 is provided. A threaded rod 202 is threadedly connected inside the threaded groove 201. The upper end of the threaded rod 202 is fixedly connected to a mold core 203. By rotating the mold core 203, the threaded rod 202 can be separated from the threaded groove 201, thereby disassembling the mold core 203 for easy replacement of mold cores 203 with different diameters. At the corresponding position of the upper end of the lower mold 2 and the docking hole 105, a docking rod 204 is fixedly connected. The cooperation between the docking rod 204 and the docking hole 105 can play a guiding role when the upper mold 3 is docked with the lower mold 2.

[0033] On both the front and rear sides of the lower mold 2, two connecting blocks 205 are fixedly connected. Through holes 206 are provided through the right sides of the connecting blocks 205 and the docking blocks 106. A first fixing pin 4 is inserted into the through hole 206. The first fixing pin 4 is used to fix the upper mold 3 and the lower mold 2 after they are docked, ensuring that the mold can maintain a stable state when injecting plastic materials. The ends of the first fixing pin 4 and the second fixing pin 5 are threaded, and nuts 6 are threadedly connected to the ends of the first fixing pin 4 and the second fixing pin 5.

[0034] Refer to Figure 5 As shown, in the middle of the upper end of the upper mold base 1, a feeding pipe 8 communicating with the mold cavity 303 is fixedly connected.

[0035] Working principle: When this device is in use, first select a suitable mold core 203 and upper mold 3 according to the manufacturing requirements. Install the threaded rod 202 inside the threaded groove 201 by rotating the mold core 203 to complete the installation of the mold core 203. Then insert the fixing block 301 into the fixing groove 101, and at the same time insert the second fixing pin 5 into the first fixing hole 102 and the second fixing hole 302 and use a nut 6 to fix it to complete the installation of the upper mold 3. After that, install the upper mold base 1 on the lower mold 2 through the docking rod 204 and the docking hole 105, then insert the first fixing pin 4 into the through hole 206 and use a nut 6 to fix it. After the installation is completed, inject plastic raw materials into the mold cavity 303 through the feeding pipe 8. When the mold cavity 303 is filled with plastic raw materials, inject water into the cooling groove 104 through the water pipe 7 on one side. Utilize the heat conduction property of the copper plate 103 to enable the plastic raw materials to exchange heat with the water, thereby accelerating the cooling and forming of the plastic raw materials.

[0036] The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present utility model. Without departing from the spirit and scope of the present utility model, various changes and improvements will occur to the present utility model, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cryogenic vial cap forming mold, characterized in that It includes a lower mold (2), an upper mold base (1) arranged at the upper end of the lower mold (2), and an upper mold (3) arranged inside the upper mold base (1). A circular copper plate (103) for heat conduction is fixedly connected inside the upper mold base (1). A cooling groove (104) is formed between the outer side of the copper plate (103) and the inner wall of the upper mold base (1). Water pipes (7) communicating with the cooling groove (104) are fixedly connected to both the front and rear sides of the upper mold base (1). Two fixing grooves (101) are formed at the inner top end of the upper mold base (1). A fixing block (301) is inserted into the fixing groove (101). The upper mold (3) is fixedly connected to the lower end of the fixing block (301). A second fixing hole (302) is formed through the right side of the fixing block (301). A first fixing hole (102) with the same size as the second fixing hole (302) is formed through the right side of the upper mold base (1). The first fixing hole (102) communicates with the center of the fixing groove (101).

2. The forming die for a cryopreservation tube cap according to claim 1, wherein: A mold cavity (303) is formed at the lower end of the upper mold (3).

3. A forming mold for a cryopreservation tube cap according to claim 1, characterized in that: Docking holes (105) are formed at the four corners of the lower end of the upper mold base (1). Docking blocks (106) are fixedly arranged on both the front and rear sides of the upper mold base (1).

4. A cryopreservation tube cap forming mold according to claim 1, characterized in that: A threaded groove (201) is formed in the middle of the upper end of the lower mold (2). A threaded rod (202) is threadedly connected to the threaded groove (201). A mold core (203) is fixedly connected to the upper end of the threaded rod (202).

5. A cryopreservation tube cap forming mold according to claim 1, characterized in that: Docking rods (204) are fixedly connected to the upper end of the lower mold (2) at positions corresponding to the docking holes (105). Two connecting blocks (205) are fixedly connected to both the front and rear sides of the lower mold (2). Through holes (206) are formed through the right sides of the connecting blocks (205) and the docking blocks (106).

6. The forming mold for a cryogenic vial cap according to claim 5, wherein: A first fixing pin (4) is inserted into the through hole (206).

7. A cryopreservation tube cap forming mold according to claim 1, characterized in that: A second fixing pin (5) is inserted into the first fixing hole (102) and the second fixing hole (302).

8. A cryopreservation tube cap forming mold according to claim 6, characterized in that: The ends of the first fixing pin (4) and the second fixing pin (5) are threaded. Nuts (6) are threadedly connected to the ends of the first fixing pin (4) and the second fixing pin (5).

9. A cryopreservation tube cap forming mold according to claim 1, characterized in that: A feeding pipe (8) communicating with the mold cavity (303) is fixedly connected to the middle of the upper end of the upper mold base (1).

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