Injection mold for automobile deflector rod

Abstract

The utility model relates to an injection mold of an automobile deflector rod, which comprises a movable mold, a fixed mold and an insert, the movable mold is provided with a movable mold core, the fixed mold is provided with a fixed mold core, the movable mold core and the fixed mold core form a molding cavity after mold closing, the top of the movable mold is provided with a glue injection port, and an injection molding runner communicated with the glue injection port is arranged in the molding cavity. A cooling circulation structure is arranged on the insert, the cooling circulation structure comprises a water inlet pipe, a water outlet pipe and a spiral pipe which are communicated with one another, the spiral pipe is connected between the water inlet pipe and the water outlet pipe, the insert comprises a connecting part and an inserting part, the inserting part is conical, the spiral pipe is located in the inserting part, and the connecting part is connected with the inserting part. The connecting part is connected with a driving piece, and the inserting part is driven by the driving piece to enter and exit from the forming cavity. By the adoption of the technical scheme, the injection mold for the automobile deflector rod is provided, a cooling circulation structure is additionally arranged in the insert, cooling is accelerated, and the injection molding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection mold for an automotive shift lever. Background Art

[0002] An injection mold is a tool for producing plastic products; it is also a tool for giving plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of some complex-shaped parts. Specifically, it means that the heat-melted plastic is injected into the mold cavity by a high-pressure injection molding machine, and after cooling and solidifying, a formed product is obtained.

[0003] There are various switches on an automobile, such as an automotive shift lever for controlling the lights and windshield wipers of the automobile, which is usually injection-molded by an injection mold. The injection mold includes a fixed mold assembly, a movable mold assembly and an ejection structure. After the movable mold assembly and the fixed mold assembly are closed, a mold cavity is formed. It also includes an insert. When the mold is closed for injection molding, the insert extends into the mold cavity. When the mold is opened, the insert withdraws from the mold cavity so that holes or grooves are formed at the positions corresponding to the insert on the injection-molded product. The automotive shift lever is relatively long, resulting in slow cooling during injection molding, thereby affecting the processing efficiency. Summary of the Invention

[0004] The purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides an injection mold for an automotive shift lever, which adds a cooling circulation structure inside the insert to accelerate cooling and improve the injection molding efficiency.

[0005] The technical solution of the utility model: An injection mold for an automotive shift lever, including a movable mold, a fixed mold and an insert. A movable mold core is provided on the movable mold, and a fixed mold core is provided on the fixed mold. After the mold is closed, the movable mold core and the fixed mold core form a molding cavity. A glue injection port is provided at the top of the movable mold, and an injection flow channel communicating with the glue injection port is provided in the molding cavity. A cooling circulation structure is provided on the insert. The cooling circulation structure includes a water inlet pipe, a water outlet pipe and a spiral pipe that are mutually communicated. The spiral pipe is connected between the water inlet pipe and the water outlet pipe. The insert includes a connecting part and an inserting part. The inserting part is arranged in a conical shape. The spiral pipe is located inside the inserting part. The connecting part is connected with a driving part. The inserting part slides into and out of the molding cavity under the drive of the driving part.

[0006] Adopting the above technical solution, the injection molding efficiency is high and the quality is good. When the product is injection-molded, the cooling time is shortened through the cooling circulation structure, and the injection molding efficiency is improved. The water circulation is used to avoid too high water temperature and inability to achieve the cooling effect. The driving part drives the inserting part of the insert to slide into the molding cavity. The movable mold moves relative to the fixed mold to close the mold and inject and fill from the glue injection port. After the injection molding is completed, the movable mold moves relative to the fixed mold to open the mold, and the driving part drives the insert to slide out of the molding cavity, and the product is ejected to complete the injection molding of the product.

[0007] Further setting of the present utility model: A fixed seat is provided outside the fixed mold. A sliding groove is provided on the fixed seat. A travel rod is provided on the connecting portion. The travel rod is slidably arranged in the sliding groove. A first sensor and a second sensor are respectively provided at both ends of the sliding groove on the fixed seat. When the travel rod slides in the sliding groove, it touches the sensor to trigger a signal.

[0008] With the above further setting, the sliding distance of the insert is limited to avoid excessive sliding and affecting the product quality. After the travel rod touches the sensor, a signal is sent, and the driving member stops working, and the insert stops sliding, indicating that the sliding is in place.

[0009] Another further setting of the present utility model: The driving member is arranged as an oil cylinder. The oil cylinder is fixedly arranged on the fixed seat. The connecting portion of the insert is connected to the output end of the oil cylinder. The connecting portion slides in the fixed seat under the drive of the driving member.

[0010] With the above another further setting, the structure is simple and the installation is stable.

[0011] Another even further setting of the present utility model: It further includes a connecting member. The connecting portion of the insert is connected to the connecting member. The connecting member is provided with a water inlet flow channel and a water outlet flow channel. The water inlet pipe communicates with the water inlet flow channel. The water outlet pipe communicates with the water outlet flow channel. The output shaft of the driving member is connected to the connecting member.

[0012] With the above another even further setting, the structure is simple and the connection is convenient. The connecting member is provided with a connecting groove. The output shaft of the driving member is clamped in the connecting groove. The external water pipe is connected to the connecting member, so that water flows from the water inlet flow channel to the water inlet pipe, the spiral pipe and the water outlet pipe, and finally flows out from the water outlet flow channel, realizing water circulation with good cooling effect and high speed.

[0013] Another even further setting of the present utility model: The fixed seat is provided with two relatively arranged fixed blocks. A guiding groove is formed between the fixed blocks and the fixed seat with a space therebetween. The two sides of the connecting member are provided with extending blocks. The two extending blocks are slidably arranged in the corresponding guiding grooves.

[0014] With the above another even further setting, the structure is stable when the insert slides and does not shift.

[0015] Another even further setting of the present utility model: It further includes an ejecting assembly. The ejecting assembly includes an ejecting plate and ejector pins arranged on the ejecting plate. The upper ends of the ejector pins pass through the fixed mold and extend into the molding cavity.

[0016] With the above another even further setting, after mold opening, the molded product is ejected by the ejecting assembly. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the present utility model;

[0018] Figure 2 Schematic diagram of the insert in a specific embodiment of the present utility model;

[0019] Figure 3 Schematic diagram of the cooling cycle structure in a specific embodiment of the present utility model;

[0020] Figure 4 Schematic diagram of the insert and the fixed seat in a specific embodiment of the present utility model;

[0021] Figure 5 Schematic connection diagram of the insert and the driving member in a specific embodiment of the present utility model;

[0022] Figure 6 Schematic diagram of the connecting member and the fixed seat in a specific embodiment of the present utility model;

[0023] Figure 7 Schematic diagram of the moving die core and the moving die core in a specific embodiment of the present utility model;

[0024] Figure 8 Schematic diagram of the moving die core in a specific embodiment of the present utility model;

[0025] Figure 9 Schematic diagram of the moving die core in a specific embodiment of the present utility model.

[0026] In the figure, 1 is the moving die; 11 is the moving die core; 12 is the glue injection port; 2 is the fixed die; 21 is the fixed die core; 3 is the insert; 31 is the connecting part; 311 is the stroke rod; 32 is the inserting part; 41 is the water inlet pipe; 42 is the water outlet pipe; 43 is the spiral pipe; 5 is the driving member; 6 is the fixed seat; 61 is the sliding groove; 62 is the first sensor; 63 is the second sensor; 64 is the fixing block; 7 is the connecting member; 71 is the connecting pipe; 72 is the extending block; 73 is the connecting groove; 8 is the inclined core pulling; 81 is the positioning step; 9 is the ejecting assembly. Specific embodiments

[0027] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] It should be noted that all directional indications (such as up, down, front, back...) in the description of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0029] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present utility model, the meaning of "several" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the fact that those skilled in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0031] As Figures 1-9 shown, an injection mold for an automotive shift lever includes a moving mold 1, a fixed mold 2, and an insert 3. A moving mold core 11 is provided on the moving mold 1, and a fixed mold core 21 is provided on the fixed mold 2. After the molds are closed, the moving mold core 11 and the fixed mold core 21 form a molding cavity. A glue injection port 12 is provided at the top of the moving mold 1, and an injection molding runner communicating with the glue injection port 12 is provided in the molding cavity. A cooling circulation structure is provided on the insert 3. The cooling circulation structure includes a water inlet pipe 41, a water outlet pipe 42, and a spiral pipe 43 that are mutually communicated. The spiral pipe 43 is connected between the water inlet pipe 41 and the water outlet pipe 42. The insert 3 includes a connecting portion 31 and an inserting portion 32. The inserting portion 32 is provided in a conical shape. The spiral pipe 43 is located inside the inserting portion 32. The connecting portion 31 is connected with a driving member 5. The inserting portion 32 of the insert 3 enters and exits the molding cavity under the drive of the driving member 5. The injection molding efficiency is high and the quality is good. When the product is injection molded, the cooling time is shortened through the cooling circulation structure, improving the injection molding efficiency. And because the inserting portion is provided in a conical shape and a spiral pipe is arranged inside the inserting portion, it can be inserted into the molding cavity, better realizing cooling. The water circulation is used to avoid the water temperature being too high and unable to achieve the cooling effect. The driving member 5 drives the inserting portion 32 of the insert 3 to slide into the molding cavity. The moving mold 1 moves relative to the fixed mold 2 to close the mold and inject and fill from the glue injection port 12. After the injection molding is completed, the moving mold 1 moves relative to the fixed mold 2 to open the mold, and the driving member 5 drives the insert 3 to slide out of the molding cavity, and the product is ejected, completing the injection molding of the product.

[0032] A fixed seat 6 is provided outside the fixed mold 2. A chute 61 is provided on the fixed seat 6. A travel rod 311 is provided on the connecting portion 31. The travel rod 311 is slidably arranged in the chute 61. A first sensor 62 and a second sensor 63 are respectively provided at both ends of the chute 61 on the fixed seat 6. When the travel rod 311 slides in the chute 61, it touches the sensor to trigger a signal, limiting the sliding distance of the insert 3 and avoiding excessive sliding and affecting the product quality. After the travel rod 311 touches the sensor, a signal is sent, and the driving member 5 stops working, and the insert 3 stops sliding, indicating that the sliding is in place.

[0033] The driving member 5 is arranged as an oil cylinder, and the oil cylinder is fixedly arranged on the fixed seat 6. The connecting portion 31 of the insert 3 is connected to the output end of the oil cylinder. The connecting portion 31 slides in the fixed seat 6 under the drive of the driving member 5, with a simple structure and stable installation.

[0034] It further includes a connecting member 7. The connecting portion 31 of the insert 3 is connected to the connecting member 7, and a stroke rod 311 is arranged on the connecting member 7. The connecting member 7 is provided with an inlet water flow channel and an outlet water flow channel. The water inlet pipe 41 communicates with the inlet water flow channel, and the water outlet pipe 42 communicates with the outlet water flow channel. Connecting pipes 71 are installed at the water inlet of the inlet water flow channel and the water outlet of the outlet water flow channel for connecting to external water pipes. The output shaft of the driving member 5 is connected to the connecting member 7, with a simple structure and convenient connection. A connecting groove 73 is provided on the connecting member 7, and the output shaft of the driving member 5 is clamped in the connecting groove 73, so that water flows from the inlet water flow channel to the water inlet pipe 41, the spiral pipe 43, and the water outlet pipe 42, and finally flows out from the outlet water flow channel, realizing water circulation with good cooling effect and high speed. It further includes an inclined core-pulling 8. The lower end of the inclined core-pulling 8 is fixedly arranged on the fixed mold 2, and the upper end extends into the molding cavity. A positioning step 81 is provided at the upper end. When the insert 3 is inserted into the molding cavity, the insert 3 abuts against the positioning step 81 to position the insert 3, making its structure stable. Two relatively arranged fixing blocks 64 are provided on the fixed seat 6. A guiding groove is formed by separating the fixing blocks 64 from the fixed seat 6. Extension blocks 72 are provided on both sides of the connecting member 7, and the two extension blocks 312 slide in the corresponding guiding grooves. The insert 3 slides stably without deviation. It further includes an ejection assembly 9. The ejection assembly 9 includes an ejection plate and ejector pins arranged on the ejection plate. The upper ends of the ejector pins pass through the fixed mold 2 and extend into the molding cavity, and some ejector pins pass through the inclined core-pulling 8 and extend into the molding cavity. Through grooves are provided at the positions corresponding to the ejector pins on the inclined core-pulling 8. The ejection assembly 9 belongs to the prior art, so it will not be specifically elaborated here. After mold opening, the molded product is ejected by the ejection assembly 9.

Claims

1. An injection mold for an automobile shift lever, comprising a movable mold (1), a fixed mold (2) and an insert (3), wherein the movable mold (1) is provided with a movable mold core (11), and the fixed mold (2) is provided with a fixed mold core (21), and after the molds are closed, the movable mold core (11) and the fixed mold core (21) form a molding cavity, a glue injection port (12) is provided at the top of the movable mold (1), and an injection flow channel communicating with the glue injection port (12) is provided in the molding cavity, characterized in that: The insert (3) is provided with a cooling circulation structure, the cooling circulation structure comprising an inlet pipe (41), an outlet pipe (42) and a spiral pipe (43) which are interconnected, the spiral pipe (43) being connected between the inlet pipe (41) and the outlet pipe (42), the insert (3) comprising a connecting portion (31) and an insert portion (32), the insert portion (32) being arranged in a conical shape, the spiral pipe (43) being located inside the insert portion (32), the connecting portion (31) being connected to a driving member (5), and the insert portion (32) being driven by the driving member (5) to enter and exit the molding cavity.

2. The injection mold for the automobile lever according to claim 1, characterized in that: A fixed seat (6) is provided on the outside of the fixed mold (2), a slide groove (61) is provided on the fixed seat (6), a travel rod (311) is provided on the connecting portion (31), the travel rod (311) is slidably arranged in the slide groove (61), a first sensor (62) and a second sensor (63) are respectively provided at both ends of the slide groove (61) on the fixed seat (6), and when the travel rod (311) slides in the slide groove (61), it touches the sensor to trigger a signal.

3. The injection mold of the automobile lever according to claim 2, characterized in that: The driving member (5) is provided by an oil cylinder, which is fixed on a fixing seat (6). The connecting portion (31) of the insert (3) is connected to an output end of the oil cylinder, and the connecting portion (31) slides in the fixing seat (6) under the drive of the driving member (5).

4. The injection mold for the automobile lever according to claim 2 or 3, characterized in that: It also includes a connecting piece (7), the connecting portion (31) of the insert (3) is connected to the connecting piece (7), the connecting piece (7) is provided with a water inlet channel and a water outlet channel, the water inlet pipe (41) is in communication with the water inlet channel, the water outlet pipe (42) is in communication with the water outlet channel, and the output shaft of the driving piece (5) is connected to the connecting piece (7).

5. The injection mold for the automobile lever according to claim 4, characterized in that: The fixing seat (6) is provided with two fixing blocks (64) arranged opposite to each other, the fixing blocks (64) and the fixing seat (6) are spaced apart to form a guide groove, and the connecting member (7) is provided with extension blocks (72) on both sides, and the two extension blocks (72) are slidably arranged in the corresponding guide grooves.

6. The injection mold for the automobile lever according to claim 1, 2, 3 or 5, characterized in that: It also includes an oblique core puller (8), wherein the oblique core puller (8) is fixedly arranged on the fixed mold (2) at the lower end, and the upper end extends into the molding cavity. A positioning step (81) is provided at the upper end. When the insert (3) is inserted into the molding cavity, the insert (3) abuts against the positioning step (81).

7. The injection mold for the automobile lever according to claim 1, 2, 3 or 5, characterized in that: It also includes an ejector assembly (9), which includes an ejector plate and an ejector pin arranged on the ejector plate, wherein the upper end of the ejector pin passes through the fixed mold (2) and extends into the molding cavity.

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