Anti-dislocation injection molding mold for automotive upholstery

By introducing an anti-misalignment mechanism into the mold, and using springs and conductive sheets to trigger the alarm, the problem of mold misalignment during mold closing was solved, thereby reducing scrap rate and production costs.

CN223657517UActive Publication Date: 2025-12-12NANTONG JINSHENG MOLDING TECH CO LTD
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Patent Information

Application Number
CN202520234790.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-14
Publication Date
2025-12-12
Estimated Expiration
2035-02-14

AI Technical Summary

Technical Problem

Traditional injection molding molds are prone to misalignment during mold closing, leading to the production of defective products and increased production costs.

Method used

A mold with an anti-misalignment mechanism was designed. The anti-misalignment mechanism, consisting of a positioning rod, a movable sleeve, a spring, and a conductive sheet, detects whether the mold is closed accurately and triggers an alarm when misalignment occurs, so as to adjust the mold position in time.

Benefits of technology

By using anti-misalignment mechanisms to detect mold misalignment in a timely manner, scrap rates can be reduced and production costs can be lowered.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of injection molding molds for automotive upholstery, and discloses an anti-dislocation injection molding mold for automotive upholstery, which comprises a bottom plate, a lower mold and an upper mold, an air cylinder is fixedly mounted on the left side of the upper surface of the bottom plate, a connecting frame is fixedly mounted at the output end of the air cylinder, and the lower surface of one end of the connecting frame is connected with the upper mold; and two sets of positioning grooves are formed in the upper surface of the bottom plate, two sets of anti-dislocation mechanisms are fixedly installed on the lower surface of the upper mold and located above the two sets of positioning grooves, and an alarm is fixedly installed on the lower surface of the upper mold. Through cooperative work of the positioning groove, the anti-dislocation mechanism and the alarm, an operator can find and adjust the mold in time, unqualified products are prevented from being produced, the rejection rate is reduced, and the production cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding molds for automotive interior parts, specifically an anti-misalignment injection molding mold for automotive interior parts. Background Technology

[0002] Automotive interior parts are an important component of a car as a whole. They not only affect the car's aesthetics but are also closely related to the comfort and safety of passengers. With the continuous development of the automotive market, consumers have increasingly higher requirements for the quality, appearance, and function of automotive interior parts. Injection molding is a major process for manufacturing automotive interior parts. It can efficiently produce interior parts with complex shapes and high precision requirements, and can use a variety of materials, such as plastics, according to different design requirements.

[0003] Traditional injection molding molds are prone to misalignment during mold closing. This misalignment is caused by factors such as mold manufacturing precision, installation errors, or wear after long-term use. Once the mold is misaligned, the produced automotive interior parts will have problems such as dimensional deviations and irregular shapes, thus becoming unqualified products. Because misalignment cannot be detected and prevented in time, a large number of unqualified products will be produced, resulting in high production costs. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-misalignment injection molding mold for automotive interior parts, which solves the problem that existing technologies cannot detect and prevent mold misalignment in a timely manner, resulting in a large number of defective products and thus high production costs.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an anti-misalignment injection molding mold for automotive interior parts, comprising a base plate, a lower mold, and an upper mold. A cylinder is fixedly installed on the left side of the upper surface of the base plate, and a connecting frame is fixedly installed on the output end of the cylinder. One end of the connecting frame is connected to the lower mold. Two sets of positioning grooves are formed on the upper surface of the base plate. Two sets of anti-misalignment mechanisms are fixedly installed on the lower surface of the upper mold, with the two sets of anti-misalignment mechanisms located above the two sets of positioning grooves. An alarm is fixedly installed on the lower surface of the upper mold. The anti-misalignment mechanism includes a positioning rod, a movable sleeve, and a mounting plate. The positioning rod is installed on the lower surface of the upper mold, and the movable sleeve extends and retracts along the positioning rod. One end of the positioning rod is fixedly installed with a mounting plate, which is disposed inside the movable sleeve.

[0007] Furthermore, the anti-misalignment mechanism also includes a spring, a first conductive sheet, and a second conductive sheet. The spring is fixedly installed on the upper surface of the mounting plate, and the end of the spring away from the mounting plate is connected to the inner top of the movable sleeve. The first conductive sheet is fixedly installed on the lower surface of the mounting plate, and the second conductive sheet is fixedly installed on the inner bottom of the movable sleeve.

[0008] Furthermore, a mounting bracket is fixedly installed on the center of the lower surface of the base plate.

[0009] Furthermore, an electric actuator is fixedly installed inside the mounting bracket.

[0010] Furthermore, a push rod is fixedly installed at the output end of the electric actuator.

[0011] Furthermore, the push rod extends through the base plate into the interior of the lower mold.

[0012] This utility model has the following beneficial effects:

[0013] (1) In the mold closing process, the two sets of anti-misalignment mechanisms on the lower surface of the upper mold play a key role. The movable sleeve on the positioning rod extends and retracts along the positioning rod. In the initial state, the spring is in the normal extended state, and the first conductive plate and the second conductive plate are in the separated state. When the mold is closed accurately, the movable sleeve will be accurately inserted into the positioning groove on the upper surface of the base plate. If misalignment occurs, the insertion of the movable sleeve will be hindered, causing the movable sleeve to be compressed upward relative to the positioning rod. At this time, the spring is compressed, and the first conductive plate on the lower surface of the mounting plate will contact the second conductive plate at the bottom of the movable sleeve. Once the first conductive plate and the second conductive plate are in contact, a conductive path will be formed, triggering the alarm to indicate that the mold closing is misaligned. This allows the operator to detect and adjust the mold in time, avoid producing unqualified products, reduce the scrap rate, and lower the production cost.

[0014] (2) This utility model uses an electric push rod on the mounting frame to drive the push rod to move upward inside the base plate and the lower mold, thereby pushing out the formed workpiece inside the lower mold, thus achieving the effect of easy material unloading.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;

[0020] Figure 4 This is a schematic diagram of the base plate structure of this utility model;

[0021] The attached diagram lists the components represented by each number as follows:

[0022] In the diagram: 1. Base plate; 101. Positioning groove; 2. Lower mold; 3. Cylinder; 4. Connecting frame; 5. Upper mold; 6. Anti-misalignment mechanism; 601. Positioning rod; 602. Movable sleeve; 603. Mounting plate; 604. Spring; 605. First conductive sheet; 606. Second conductive sheet; 7. Mounting frame; 8. Electric push rod; 9. Push rod; 10. Alarm. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0024] Please see Figures 1-4 As shown, this utility model is an anti-misalignment injection molding mold for automotive interior parts, including a base plate 1, a lower mold 2 and an upper mold 5. A cylinder 3 is fixedly installed on the left side of the upper surface of the base plate 1. A connecting frame 4 is fixedly installed on the output end of the cylinder 3. The lower surface of one end of the connecting frame 4 is connected to the upper mold 5. Two sets of positioning grooves 101 are opened on the upper surface of the base plate 1. Two sets of anti-misalignment mechanisms 6 are fixedly installed on the lower surface of the upper mold 5. The two sets of anti-misalignment mechanisms 6 are located above the two sets of positioning grooves 101. An alarm 10 is fixedly installed on the lower surface of the upper mold 5.

[0025] When automotive interior parts are injection molded, cylinder 3 first works, and the output end of cylinder 3 drives the connecting frame 4 to move. The connecting frame 4 then drives the upper mold 5 to open and close relative to the lower mold 2. The upper mold 5 and the lower mold 2 overlap, and at the same time, the two sets of movable sleeves 602 enter the interior of the two sets of positioning grooves 101. Then, through the injection hole above the upper mold 5, the material is injected into the cavity formed by the lower mold 2 and the upper mold 5 by the external injection molding equipment, thus completing the injection molding.

[0026] The anti-misalignment mechanism 6 includes a positioning rod 601, a movable sleeve 602, and a mounting plate 603. The positioning rod 601 is installed on the lower surface of the upper mold 5. The movable sleeve 602 extends and retracts along the positioning rod 601. The mounting plate 603 is fixedly installed at one end of the positioning rod 601. The mounting plate 603 is located inside the movable sleeve 602.

[0027] The anti-misalignment mechanism 6 also includes a spring 604, a first conductive sheet 605, and a second conductive sheet 606. The spring 604 is fixedly installed on the upper surface of the mounting plate 603. The end of the spring 604 away from the mounting plate 603 is connected to the inner top of the movable sleeve 602. The first conductive sheet 605 is fixedly installed on the lower surface of the mounting plate 603. The second conductive sheet 606 is fixedly installed on the inner bottom of the movable sleeve 602.

[0028] During the mold closing process, the two sets of anti-misalignment mechanisms 6 on the lower surface of the upper mold 5 play a key role. The movable sleeve 602 on the positioning rod 601 extends and retracts along the positioning rod 601. In the initial state, the spring 604 is in the normal extended state, and the first conductive plate 605 and the second conductive plate 606 are in the separated state. When the mold is closed accurately, the movable sleeve 602 will be accurately inserted into the positioning groove 101 on the upper surface of the base plate 1. If misalignment occurs, the insertion of the movable sleeve 602 will be hindered, causing the movable sleeve 602 to be compressed upward relative to the positioning rod 601. At this time, the spring 604 is compressed, and the first conductive plate 605 on the lower surface of the mounting plate 603 will contact the second conductive plate 606 at the bottom of the movable sleeve 602. Once the first conductive plate 605 and the second conductive plate 606 contact, a conductive path will be formed, triggering the alarm 10 to alarm and indicating that the mold closing is misaligned. This allows the operator to detect and adjust the mold in time, avoid producing unqualified products, reduce the scrap rate, and lower production costs.

[0029] A mounting bracket 7 is fixedly installed on the middle of the lower surface of the base plate 1;

[0030] An electric push rod 8 is fixedly installed inside the mounting bracket 7;

[0031] A push rod 9 is fixedly installed at the output end of the electric actuator 8;

[0032] Push rod 9 extends through base plate 1 into the interior of lower mold 2;

[0033] After the molding is completed, the cylinder 3 drives the upper mold 5 to reset, and then the electric push rod 8 on the mounting bracket 7 drives the push rod 9 to move upward inside the base plate 1 and the lower mold 2, thereby pushing out the molded workpiece inside the lower mold 2 to facilitate material unloading.

[0034] When the automotive interior parts are injection molded, the cylinder 3 first works, and the output end of the cylinder 3 drives the connecting frame 4 to move. The connecting frame 4 then drives the upper mold 5 to open and close relative to the lower mold 2. The upper mold 5 and the lower mold 2 overlap, and at the same time, the two sets of movable sleeves 602 will enter the interior of the two sets of positioning grooves 101. Then, the material is injected into the cavity formed by the lower mold 2 and the upper mold 5 through the injection hole above the upper mold 5 by the external injection molding equipment, and the injection molding is completed.

[0035] During the mold closing process, the two sets of anti-misalignment mechanisms 6 on the lower surface of the upper mold 5 play a key role. The movable sleeve 602 on the positioning rod 601 extends and retracts along the positioning rod 601. In the initial state, the spring 604 is in the normal extended state, and the first conductive plate 605 and the second conductive plate 606 are in the separated state. When the mold is closed accurately, the movable sleeve 602 will be accurately inserted into the positioning groove 101 on the upper surface of the base plate 1. If misalignment occurs, the insertion of the movable sleeve 602 will be hindered, causing the movable sleeve 602 to be compressed upward relative to the positioning rod 601. At this time, the spring 604 is compressed, and the first conductive plate 605 on the lower surface of the mounting plate 603 will contact the second conductive plate 606 at the bottom of the movable sleeve 602. Once the first conductive plate 605 and the second conductive plate 606 contact, a conductive path will be formed, triggering the alarm 10 to alarm and indicating that the mold closing is misaligned. This allows the operator to detect and adjust the mold in time, avoid producing unqualified products, reduce the scrap rate, and lower production costs.

[0036] After the molding is completed, the cylinder 3 drives the upper mold 5 to reset, and then the electric push rod 8 on the mounting bracket 7 drives the push rod 9 to move upward inside the base plate 1 and the lower mold 2, thereby pushing out the molded workpiece inside the lower mold 2 to facilitate material unloading.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A type of injection molding mold for preventing misalignment of automotive interior parts, comprising a base plate (1), a lower mold (2), and an upper mold (5), wherein a cylinder (3) is fixedly mounted on the left side of the upper surface of the base plate (1), and a connecting frame (4) is fixedly mounted on the output end of the cylinder (3), and one end of the connecting frame (4) is connected to the lower surface of the upper mold (5), characterized in that: The upper surface of the base plate (1) is provided with two sets of positioning grooves (101), and the lower surface of the upper mold (5) is fixedly installed with two sets of anti-misalignment mechanisms (6). The two sets of anti-misalignment mechanisms (6) are located above the two sets of positioning grooves (101), and the lower surface of the upper mold (5) is fixedly installed with an alarm (10). The anti-misalignment mechanism (6) includes a positioning rod (601), a movable sleeve (602), and a mounting plate (603). The positioning rod (601) is installed on the lower surface of the upper mold (5). The movable sleeve (602) extends and retracts along the positioning rod (601). One end of the positioning rod (601) is fixedly installed with the mounting plate (603), and the mounting plate (603) is located inside the movable sleeve (602).

2. The anti-misalignment injection molding mold for automotive interior parts according to claim 1, characterized in that: The anti-misalignment mechanism (6) further includes a spring (604), a first conductive sheet (605), and a second conductive sheet (606). The spring (604) is fixedly installed on the upper surface of the mounting plate (603). One end of the spring (604) away from the mounting plate (603) is connected to the inner top of the movable sleeve (602). The first conductive sheet (605) is fixedly installed on the lower surface of the mounting plate (603), and the second conductive sheet (606) is fixedly installed on the inner bottom of the movable sleeve (602).

3. The anti-misalignment injection molding mold for automotive interior parts according to claim 1, characterized in that: A mounting bracket (7) is fixedly installed on the middle of the lower surface of the base plate (1).

4. The anti-misalignment injection molding mold for automotive interior parts according to claim 3, characterized in that: An electric actuator (8) is fixedly installed inside the mounting bracket (7).

5. The anti-misalignment injection molding mold for automotive interior parts according to claim 4, characterized in that: The output end of the electric actuator (8) is fixedly equipped with a push rod (9).

6. The anti-misalignment injection molding mold for automotive interior parts according to claim 5, characterized in that: The push rod (9) extends through the base plate (1) into the interior of the lower mold (2).