PET plastic liquid container formed through injection molding

By designing grooves and slidingly installed vertical rods and fixing rods in the liquid container, the problem of liquid container misalignment caused by hot rise and cold shrinkage of PET plastic during injection molding is solved, and the stable fixation of the container and the improvement of service life are achieved.

CN222662738UActive Publication Date: 2025-03-25BEIJING GUANGLI TRADE CO LTD
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Patent Information

Application Number
CN202421076276.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-17
Publication Date
2025-03-25
Estimated Expiration
2034-05-17

AI Technical Summary

Technical Problem

During the injection molding process of existing liquid containers, the upper and lower liquid containers are stacked directly together, resulting in the PET plastic being easily separated when it is hot and cold.

Method used

A PET plastic liquid container formed by injection molding is designed. There are grooves on both sides of the top of the lower liquid container, and vertical rods and fixing rods are installed slidingly inside. Through these structures, the upper and lower liquid containers are fixed during injection molding to avoid misalignment.

Benefits of technology

It effectively avoids the problem of misalignment of upper and lower liquid containers caused by thermal expansion and cold shrinkage of PET plastic during injection molding, and improves the stability and service life of the container.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an injection-molded PET plastic liquid container which comprises a lower liquid container and an upper liquid container, grooves are formed in the two sides of the top of the lower liquid container, vertical rods are installed in the grooves in a sliding mode, one end of each vertical rod extends into the corresponding groove, and the other end of each vertical rod extends out of the corresponding groove. The end, extending out of the groove, of the vertical rod is fixedly connected with the bottom of the upper liquid container, a fixing groove is formed in one side of the vertical rod, a fixing rod is slidably installed in the fixing groove, one end of the fixing rod extends into the fixing groove, the other end of the fixing rod extends out of the fixing groove, and a sliding groove is formed in the inner wall of one side of the groove. A sliding block is slidably installed in the sliding groove. According to the utility model, the vertical rod and the fixed rod are arranged between the lower liquid container and the upper liquid container, so that the lower liquid container and the upper liquid container can be prevented from being staggered when expansion with heat and contraction with cold are caused during injection molding of PET (Polyethylene Terephthalate) plastic.
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Description

Technical Field

[0001] The utility model relates to the technical field of liquid containers, in particular to a PET plastic liquid container formed by injection molding. Background Art

[0002] Injection molding is a method of producing industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die casting. Injection molding machine (referred to as injection machine or injection molding machine) is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting materials. Injection molding is achieved through injection molding machines and molds. In the use of traditional injection molding devices, the temperature of the plastic bottles after injection molding is still very high, and the existing injection molding devices do not have further cooling treatment after discharging, which makes it difficult to manually perform subsequent processing on the injection molded plastic bottles. In addition, if the plastic bottles are not cooled and shaped, the surface hardness is insufficient. After the plastic bottles are scratched, they are easily deformed. In view of this, we propose a PET bottle injection molding device.

[0003] However, there are still some problems when using existing liquid containers:

[0004] During the injection molding of the existing liquid container, since the upper and lower liquid containers are directly stacked together, the PET plastic expands and contracts when heated and cools, which easily causes the upper and lower liquid containers to separate.

[0005] In view of the above problems, an innovative design is carried out on the basis of the original liquid container. Utility Model Content

[0006] The purpose of the utility model is to provide a PET plastic liquid container formed by injection molding to solve the fixing problem mentioned in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PET plastic liquid container formed by injection molding, comprising a lower liquid container and an upper liquid container, grooves are provided on both sides of the top of the lower liquid container, a vertical rod is slidably installed in the groove, one end of the vertical rod extends into the groove, the other end of the vertical rod extends out of the groove, the end of the vertical rod extending out of the groove is fixedly connected to the bottom of the upper liquid container, a fixing groove is provided on one side of the vertical rod, a fixing rod is slidably installed in the fixing groove, one end of the fixing rod extends into the fixing groove, and the other end of the fixing rod extends out of the fixing groove;

[0008] A sliding groove is provided on the inner wall of one side of the groove, a sliding block is slidably installed in the sliding groove, one end of the sliding block extends into the sliding groove, and the other end of the sliding block extends out of the sliding groove;

[0009] A moving groove is provided on the inner wall of the groove, a moving block is slidably installed in the moving groove, one end of the moving block extends into the moving groove, and the other end of the moving block extends out of the moving groove;

[0010] The moving block is a long rod extending to one end outside the moving groove, a clamping hole is opened on one side of the long rod, a push rod is slidably installed in the clamping hole, one end of the push rod is fixedly connected to one end of the sliding block, and the fixed rod extends to one end outside the fixed groove and is fixedly connected to one side of the long rod;

[0011] A sliding hole is provided on the inner wall of one side of the groove, and a sliding rod is slidably installed in the sliding hole. One end of the sliding rod extends into the groove, and the other end of the sliding rod extends out of the groove. The end of the sliding rod extending into the groove is fixedly connected to one side of the long rod.

[0012] Preferably, one end of the vertical rod extending into the groove contacts the top of the top rod.

[0013] By adopting the above technical solution, the vertical rod is used to fix the lower liquid container and the upper liquid container.

[0014] Preferably, one end of a first spring is fixedly mounted on the top of the sliding block, and the other end of the first spring is fixedly connected to the top inner wall of the sliding groove.

[0015] With the above technical solution, the first spring is used to drive the sliding block to reset after moving.

[0016] Preferably, the fixing rod is located on a side of the vertical rod away from the sliding block.

[0017] By adopting the above technical solution, the fixing rod is used to fix the vertical rod.

[0018] Preferably, one end of a second spring is fixedly mounted on one side of the moving block, and the other end of the second spring is fixedly connected to an inner wall of one side of the moving groove.

[0019] By adopting the above technical solution, the second spring is used to drive the moving block to reset after moving.

[0020] Preferably, the sliding rod is located on an inner wall of the groove on a side away from the sliding block.

[0021] By adopting the above technical solution, the sliding rod is used to drive the vertical rod to move horizontally.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] A vertical rod and a fixing rod are arranged between the lower liquid container and the upper liquid container, so as to avoid the lower liquid container and the upper liquid container from being misaligned when the PET plastic is being injected due to thermal expansion and contraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of the structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure A part of the utility model;

[0026] Figure 3 It is a schematic diagram of structure B of the utility model.

[0027] In the figure: 1, lower liquid container; 2, upper liquid container; 3, groove; 4, vertical rod; 5, fixed groove; 6, fixed rod; 7, long rod; 8, sliding groove; 9, sliding block; 10, clamping hole; 11, moving groove; 12, moving block; 13, sliding hole; 14, sliding rod; 15, top rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-3 The utility model provides a technical solution: a PET plastic liquid container formed by injection molding, comprising a lower liquid container 1 and an upper liquid container 2, grooves 3 are provided on both sides of the top of the lower liquid container 1, a vertical rod 4 is slidably installed in the groove 3, one end of the vertical rod 4 extends into the groove 3, the other end of the vertical rod 4 extends out of the groove 3, and the end of the vertical rod 4 extending out of the groove 3 is fixedly connected to the bottom of the upper liquid container 2, a fixing groove 5 is provided on one side of the vertical rod 4, a fixing rod 6 is slidably installed in the fixing groove 5, one end of the fixing rod 6 extends into the fixing groove 5, and the other end of the fixing rod 6 extends out of the fixing groove 5.

[0030] Combination Figure 1-2 As shown, a sliding groove 8 is provided on the inner wall of one side of the groove 3, a sliding block 9 is slidably installed in the sliding groove 8, one end of the sliding block 9 extends into the sliding groove 8, and the other end of the sliding block 9 extends out of the sliding groove 8, and a moving groove 11 is provided on the inner wall of the groove 3, a moving block 12 is slidably installed in the moving groove 11, one end of the moving block 12 extends into the moving groove 11, and the other end of the moving block 12 extends out of the moving groove 11.

[0031] Combination Figure 1-3As shown, the moving block 12 extends to one end of the long rod 7 outside the moving groove 11, and a clamping hole 10 is opened on one side of the long rod 7. A push rod 15 is slidably installed in the clamping hole 10, and one end of the push rod 15 is fixedly connected to one end of the sliding block 9. The fixed rod 6 extends to one end outside the fixed groove 5 and is fixedly connected to one side of the long rod 7. A sliding hole 13 is opened on the inner wall of one side of the groove 3, and a sliding rod 14 is slidably installed in the sliding hole 13. One end of the sliding rod 14 extends into the groove 3, and the other end of the sliding rod 14 extends outside the groove 3. The end of the sliding rod 14 extending into the groove 3 is fixedly connected to one side of the long rod 7.

[0032] The working principle of the utility model is as follows: when fixation is required, first move the sliding rod 14 horizontally, the sliding rod 14 drives the long rod 7 to move horizontally, the long rod 7 drives the fixing rod 6 to move horizontally, the long rod 7 drives the clamping hole 10 to move horizontally, and then the clamping hole 10 is separated from the push rod 15, the first spring drives the sliding block 9 to move upward, the sliding block 9 drives the push rod 15 to move upward, and then the upper liquid container 2 is placed on the top of the lower liquid container 1, and at the same time the vertical rod 4 is stuck in the groove 3, and then the vertical rod 4 drives the push rod 15 to move downward, when the push rod 15 moves to the same horizontal position as the clamping hole 10, the second spring drives the moving block 12 to move horizontally, the moving block 12 drives the long rod 7 to move horizontally, and the long rod 7 drives the fixing rod 6 to be stuck in the fixing groove 5, thereby achieving the purpose of fixation.

[0033] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the utility model have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A PET plastic liquid container formed by injection molding, comprising a lower liquid container (1) and an upper liquid container (2), characterized in that: The top of the lower liquid container (1) is provided with grooves (3) on both sides, a vertical rod (4) is slidably mounted in the groove (3), one end of the vertical rod (4) extends into the groove (3), the other end of the vertical rod (4) extends out of the groove (3), the end of the vertical rod (4) extending out of the groove (3) is fixedly connected to the bottom of the upper liquid container (2), a fixing groove (5) is provided on one side of the vertical rod (4), a fixing rod (6) is slidably mounted in the fixing groove (5), one end of the fixing rod (6) extends into the fixing groove (5), the other end of the fixing rod (6) extends out of the fixing groove (5); A sliding groove (8) is provided on an inner wall of one side of the groove (3), a sliding block (9) is slidably installed in the sliding groove (8), one end of the sliding block (9) extends into the sliding groove (8), and the other end of the sliding block (9) extends out of the sliding groove (8); A moving groove (11) is provided on the inner wall of the groove (3), a moving block (12) is slidably installed in the moving groove (11), one end of the moving block (12) extends into the moving groove (11), and the other end of the moving block (12) extends out of the moving groove (11); The moving block (12) is a long rod (7) extending to one end outside the moving groove (11), a clamping hole (10) is provided on one side of the long rod (7), a push rod (15) is slidably installed in the clamping hole (10), one end of the push rod (15) is fixedly connected to one end of the sliding block (9), and one end of the fixed rod (6) extending to the outside of the fixed groove (5) is fixedly connected to one side of the long rod (7); A sliding hole (13) is provided on an inner wall of one side of the groove (3), a sliding rod (14) is slidably installed in the sliding hole (13), one end of the sliding rod (14) extends into the groove (3), and the other end of the sliding rod (14) extends out of the groove (3), and the end of the sliding rod (14) extending into the groove (3) is fixedly connected to one side of the long rod (7).

2. A PET plastic liquid container formed by injection molding according to claim 1, characterized in that: One end of the vertical rod (4) extending into the groove (3) contacts the top of the top rod (15).

3. The PET plastic liquid container formed by injection molding according to claim 1, characterized in that: One end of a first spring is fixedly mounted on the top of the sliding block (9), and the other end of the first spring is fixedly connected to the top inner wall of the sliding groove (8).

4. The PET plastic liquid container formed by injection molding according to claim 1, characterized in that: The fixing rod (6) is located on a side of the vertical rod (4) away from the sliding block (9).

5. The PET plastic liquid container formed by injection molding according to claim 1, characterized in that: One end of a second spring is fixedly mounted on one side of the moving block (12), and the other end of the second spring is fixedly connected to an inner wall of one side of the moving groove (11).

6. The PET plastic liquid container formed by injection molding according to claim 1, characterized in that: The sliding rod (14) is located on the inner wall of the groove (3) on a side away from the sliding block (9).