Exhaust structure of plastic packaging mold

Abstract

The application provides a plastic packaging mold exhaust structure, relates to the technical field of plastic packaging mold exhaust, and comprises an adjusting part, the adjusting part comprises a rod piece and a first connecting pipe fixedly connected to the side surface of the rod piece, a rectangular cavity is arranged in the rod piece and communicates with the first connecting pipe, a piston is slidably connected in the rectangular cavity, a hand screw bolt is threadedly connected to the middle part of the piston, and the top end of the hand screw bolt penetrates through the rod piece and extends above the rod piece. Through the hand screw bolt and the piston, the hand screw bolt can drive the piston to ascend and descend during rotation, the opening size of the communication part of the first connecting pipe and the rectangular cavity can be controlled during the ascending and descending of the piston, and the air flow size can be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of venting technology for plastic sealing molds, and more specifically, to a venting structure for plastic sealing molds. Background Technology

[0002] Currently, most venting methods for molding compounds involve using an air pump to draw air from the mold. However, in practical applications, the volume and rate of air drawn need to be adapted to different products. Traditional air pumps cannot be accurately adjusted according to the product, resulting in varying venting effects for different products. Therefore, we have made improvements and proposed a new venting structure for molding compounds. Utility Model Content

[0003] This utility model provides an exhaust structure for a plastic sealing mold, including an adjustment part. The adjustment part includes a rod and a first connecting pipe fixedly connected to the side of the rod. A rectangular cavity communicating with the first connecting pipe is opened in the rod. A piston is slidably connected in the rectangular cavity. A hand-tightening bolt is threadedly connected to the middle of the piston. The top end of the hand-tightening bolt passes through the rod and extends to the top of the rod.

[0004] As a preferred technical solution of this application, a bearing is provided at the connection between the outer surface of the hand-tightening bolt and the rod.

[0005] As a preferred technical solution of this application, a third connecting pipe is fixedly connected to the bottom of the rod, and the third connecting pipe is used to connect to the vent of the plastic sealing mold.

[0006] As a preferred technical solution of this application, the end of the first connecting pipe away from the rod is fixedly connected to the second connecting pipe, the outer surface of the second connecting pipe is fitted with the fourth connecting pipe, and the fourth connecting pipe is connected to the air pump, specifically connected to the air inlet pipe of the air pump.

[0007] As a preferred technical solution of this application, the air outlet pipe of the air pump is fitted with a fifth connecting pipe, and the fifth connecting pipe is connected to the purification unit.

[0008] As a preferred technical solution of this application, the purification unit includes a sixth connecting pipe that is inserted into the inner wall of the fifth connecting pipe. The end of the sixth connecting pipe is connected to a first end cap. The first end cap is threadedly connected to a protective shell, and the end of the protective shell away from the first end cap is threadedly connected to a second end cap.

[0009] As a preferred technical solution of this application, the protective shell has three accommodating cavities, and each of the three accommodating cavities is connected to an activated carbon core. The three accommodating cavities are, from left to right, accommodating cavity A, accommodating cavity B and accommodating cavity C.

[0010] As a preferred technical solution of this application, the first end cap is provided with a first communicating cavity, and the first communicating cavity is connected to the receiving cavity B and the receiving cavity C; the second end cap is provided with a second communicating cavity, and the second communicating cavity is connected to the receiving cavity B and the receiving cavity A.

[0011] As a preferred technical solution of this application, the second end cover is also provided with an outlet located on one side of the second communicating cavity, and the outlet is connected to the receiving cavity C.

[0012] As a preferred technical solution of this application, a connecting seat is installed on the side of the first end cover, and the connecting seat is connected to the air pump.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: In the scheme of this application: This application uses a hand-tightening bolt and a piston. During the rotation of the hand-tightening bolt, the piston can be driven to rise and fall. During the rise and fall of the piston, the size of the opening at the connection between the first connecting pipe and the rectangular chamber can be controlled, thereby adjusting the airflow. Attached Figure Description

[0014] Figure 1 A schematic diagram of the venting structure of the molding die provided in this application; Figure 2 A bottom view schematic diagram of the venting structure of the molding die provided in this application; Figure 3 This is a cross-sectional structural diagram of the adjustment section provided in this application; Figure 4 This is a cross-sectional structural diagram of the protective shell provided in this application.

[0015] The image shows: 1. Adjustment section; 101. Rod; 102. First connecting pipe; 103. Second connecting pipe; 104. Third connecting pipe; 105. Rectangular chamber; 106. Piston; 107. Hand-tightening bolt; 2. Air pump; 201. Fourth connecting pipe; 202. Fifth connecting pipe; 3. Purification section; 301. Protective shell; 302. First end cap; 303. Sixth connecting pipe; 304. First connecting cavity; 305. Activated carbon core; 306. Second end cap; 307. Second connecting cavity; 308. Discharge port; 309. Connecting seat. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0017] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] For an example, please refer to... Figures 1-4 An exhaust structure for a plastic sealing mold includes an adjustment part 1. The adjustment part 1 includes a rod 101 and a first connecting pipe 102 fixedly connected to the side of the rod 101. A rectangular chamber 105 communicating with the first connecting pipe 102 is opened in the rod 101. A piston 106 is slidably connected in the rectangular chamber 105. A hand-tightening bolt 107 is threadedly connected to the middle of the piston 106. The top end of the hand-tightening bolt 107 passes through the rod 101 and extends above the rod 101. During the rotation of the hand-tightening bolt 107, it can drive the piston 106 to rise and fall. During the rise and fall of the piston 106, it can control the size of the opening at the communication between the first connecting pipe 102 and the rectangular chamber 105, thereby adjusting the airflow.

[0020] Furthermore, a bearing is provided at the connection between the outer surface of the hand-tightening bolt 107 and the rod 101.

[0021] Furthermore, a third connecting pipe 104 is fixedly connected to the bottom of the rod 101. The third connecting pipe 104 is used to connect with the vent of the molding die. The rod 101 is welded together with the first connecting pipe 102 and the rod 101. If the vent of the molding die is threaded, a thread is provided on the outer surface of the third connecting pipe 104 for threaded connection. If the vent of the molding die is not threaded, the third connecting pipe 104 is connected to the vent by inserting and then filling with sealant.

[0022] Furthermore, a second connecting pipe 103 is fixedly connected to the end of the first connecting pipe 102 away from the rod 101. The second connecting pipe 103 is welded to the first connecting pipe 102. A fourth connecting pipe 201 is sleeved on the outer surface of the second connecting pipe 103. The fourth connecting pipe 201 is connected to the air pump 2. Specifically, the fourth connecting pipe 201 is connected to the air inlet pipe of the air pump 2. The fourth connecting pipe 201, the second connecting pipe 103, and the air inlet pipe of the air pump 2 are fixed by binding with metal wire or clamps.

[0023] Furthermore, the exhaust pipe of the air pump 2 is fitted with a fifth connecting pipe 202, and the fifth connecting pipe 202 is connected to the purification unit 3. The fifth connecting pipe 202, the sixth connecting pipe 303, and the exhaust pipe of the air pump 2 are fixed together by metal wire binding or clamps. The fifth connecting pipe 202 and the fourth connecting pipe 201 are both flexible pipes.

[0024] Furthermore, the purification unit 3 includes a sixth connecting pipe 303 that is inserted into the inner wall of the fifth connecting pipe 202. The end of the sixth connecting pipe 303 is connected to a first end cap 302. The first end cap 302 is threadedly connected to a protective shell 301, and the end of the protective shell 301 away from the first end cap 302 is threadedly connected to a second end cap 306.

[0025] Furthermore, the protective shell 301 has three accommodating cavities, and each of the three accommodating cavities is fitted with an activated carbon core 305. The three accommodating cavities, from left to right, are accommodating cavity A, accommodating cavity B, and accommodating cavity C, arranged in a direction from left to right... Figure 4 As shown, the arrangement of three activated carbon cores 305 in the indicated direction enables the purification of exhaust gas.

[0026] Furthermore, the first end cap 302 has a first connecting cavity 304, which is connected to the receiving cavity B and the receiving cavity C. The second end cap 306 has a second connecting cavity 307, which is connected to the receiving cavity B and the receiving cavity A. The second end cap 306 also has an outlet 308 located on one side of the second connecting cavity 307, which is connected to the receiving cavity C. The exhaust gas enters through the sixth connecting pipe 303, and then passes through the receiving cavity A, the second connecting cavity 307, the receiving cavity B, the first connecting cavity 304, and the receiving cavity C in sequence before being discharged through the outlet 308.

[0027] Furthermore, a connecting seat 309 is installed on the side of the first end cover 302. The connecting seat 309 is connected to the air pump 2, and the connecting seat 309 and the air pump 2 can be fixed with bolts.

[0028] When in use, the vacuum pump 2 performs a vacuuming operation through the fourth connecting pipe 201, the second connecting pipe 103, the rectangular chamber 105 and the third connecting pipe 104, so that the plastic sealing mold is vented. The gas extracted by the vacuum pump 2 enters the sixth connecting pipe 303 through the fifth connecting pipe 202, and is discharged after being purified by the activated carbon core 305. When replacing the activated carbon core 305, rotate the protective shell 301 to separate the protective shell 301 from the first end cap 302, then rotate the second end cap 306 to separate the second end cap 306 from the protective shell 301. Then, pour out the activated carbon core 305 and insert a new activated carbon core 305. Screw the second end cap 306 onto the protective shell 301, and then screw the protective shell 301 and the first end cap 302 together.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this 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 specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A venting structure for a molding die, characterized in that, The device includes an adjustment part (1), which includes a rod (101) and a first connecting pipe (102) fixedly connected to the side of the rod (101). A rectangular chamber (105) communicating with the first connecting pipe (102) is provided in the rod (101). A piston (106) is slidably connected in the rectangular chamber (105). A hand-tightening bolt (107) is threadedly connected to the middle of the piston (106). The top end of the hand-tightening bolt (107) passes through the rod (101) and extends above the rod (101).

2. The venting structure of the molding die according to claim 1, characterized in that, A bearing is provided at the connection between the outer surface of the hand-tightening bolt (107) and the rod (101).

3. The venting structure of the molding die according to claim 1, characterized in that, The bottom of the rod (101) is fixedly connected to a third connecting pipe (104), which is used to connect to the vent of the plastic sealing mold.

4. The venting structure of the molding die according to claim 1, characterized in that, The first connecting pipe (102) is fixedly connected to a second connecting pipe (103) at one end away from the rod (101). A fourth connecting pipe (201) is sleeved on the outer surface of the second connecting pipe (103), and the fourth connecting pipe (201) is connected to a vacuum pump (2). Specifically, the fourth connecting pipe (201) is connected to the air inlet pipe of the vacuum pump (2).

5. The venting structure of the molding die according to claim 4, characterized in that, The exhaust pipe of the air pump (2) is fitted with a fifth connecting pipe (202), and the fifth connecting pipe (202) is connected to the purification unit (3).

6. The venting structure of the molding die according to claim 5, characterized in that, The purification unit (3) includes a sixth connecting pipe (303) inserted into the inner wall of the fifth connecting pipe (202). The end of the sixth connecting pipe (303) is connected to a first end cap (302). The first end cap (302) is threadedly connected to a protective shell (301), and the end of the protective shell (301) away from the first end cap (302) is threadedly connected to a second end cap (306).

7. The venting structure of the molding die according to claim 6, characterized in that, The protective shell (301) has three accommodating cavities, and each of the three accommodating cavities is connected to an activated carbon core (305). The three accommodating cavities are, from left to right, accommodating cavity A, accommodating cavity B and accommodating cavity C.

8. The venting structure of the molding die according to claim 7, characterized in that, The first end cap (302) has a first connecting cavity (304) which is connected to the accommodating cavity B and the accommodating cavity C. The second end cap (306) has a second connecting cavity (307) which is connected to the accommodating cavity B and the accommodating cavity A.

9. The venting structure of the molding die according to claim 8, characterized in that, The second end cap (306) is also provided with an outlet (308) located on one side of the second connecting cavity (307), and the outlet (308) is connected to the receiving cavity C.

10. The venting structure of the molding die according to claim 9, characterized in that, A connecting seat (309) is installed on the side of the first end cap (302), and the connecting seat (309) is connected to the air pump (2).

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