Automatic opening and closing structure of injection mold part

Abstract

The utility model discloses an automatic opening and closing structure of an injection mold part, which comprises a fixed module, guide columns which are uniformly distributed are arranged at the upper end of the fixed module, a first moving module is connected between the four guide columns in a sliding manner, a second moving module is connected between the upper ends of the four guide columns in a sliding manner, and the automatic opening and closing structure further comprises an opening and closing mechanism; the opening and closing mechanism comprises a fixing groove, limiting blocks, a fixing block, a shifting strip, a shifting groove and a top block, the fixing groove is formed in the middle of the right side of the first moving module, the limiting blocks which are symmetrically distributed up and down are slidably connected to the rear side of the fixing groove, and the fixing blocks are arranged at the upper end of the right side of the fixing module and the lower end of the right side of the second moving module. According to the automatic opening and closing structure of the injection mold part, the mold opening sequence can be determined according to the requirement of the shape of a product during mold opening, the product is prevented from being damaged, and the flexibility is high.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an automatic opening and closing structure for injection mold parts. Background Technology

[0002] The opening and closing device is a mold accessory that adjusts the friction between the template and the nylon sleeve by tightening the tapered bolt. It is mainly used to increase the mold opening resistance between the fixed and moving molds, and to ensure that the runner plate, the panel and the fixed template open before the fixed template and the moving template open.

[0003] In the prior art, patent publication number CN214163853U discloses an opening and closing device structure for use in injection molds, including a moving mold assembly, a fixed mold assembly, and a demolding device for controlling the opening sequence of the injection mold. The moving mold assembly and the fixed mold assembly are installed opposite to each other, and the demolding device is installed on one side of the moving mold assembly and the fixed mold assembly. The moving mold assembly is installed on the injection molding machine via a movable template, and the fixed mold assembly is installed on a fixed template of the injection molding machine. The demolding device includes an opening and closing device for linkage control of the parting between the templates in the fixed mold assembly. The opening and closing device includes several retractable latches, a latch for engaging with the latches to achieve locking, and a release plate for controlling the extension and retraction of the latches. The latches have a front engaging end that engages with the latch and a rear control end that engages with the release plate to control extension and retraction. The latches have several engaging positions that engage with the front engaging end. The release plate has several extending positions and retracting positions that engage with the rear control end to achieve extension and retraction of the latches. The extending positions and retracting positions are alternately and continuously arranged on the release plate. The number of engaging positions, extending positions, and retracting positions is equal to the number of latches.

[0004] The automatic opening and closing structure of this type of injection mold part has the following disadvantages: the moving template can only open the mold sequentially during demolding, which may damage the product when injection molding irregularly shaped products, and it has poor flexibility. To address this, we propose an automatic opening and closing structure for injection mold parts. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an automatic opening and closing structure for injection mold parts. When opening the mold, the opening sequence can be determined according to the needs of the product shape, so as to avoid damage to the product. It is highly flexible and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic opening and closing structure for injection mold parts, including a fixed module, a uniformly distributed guide post at the upper end of the fixed module, a moving module one slidably connected between the four guide posts in the middle, a moving module two slidably connected between the four guide posts at the upper end, and an opening and closing mechanism.

[0007] The opening and closing mechanism includes a fixed groove, a limiting block, a fixed block, a toggle bar, a toggle groove, and a top block. A fixed groove is provided in the middle right side of the first moving module. A symmetrically distributed limiting block is slidably connected to the rear side of the fixed groove. Fixed blocks are provided at the upper right side of the fixed module and the lower right side of the second moving module. Each fixed block is installed in conjunction with a vertically adjacent limiting block. A toggle bar corresponding to the upper and lower positions is slidably connected in the middle of the fixed groove. Toggle grooves are provided on the inner sides of the two limiting blocks. Toggle bars are installed in conjunction with vertically adjacent toggle grooves. A top block is rotatably connected to the middle of the fixed groove via a rotating shaft. The arc surface of the top block is installed in conjunction with the end face of the toggle bar. The mold opening sequence can be determined according to the product shape requirements during mold opening, avoiding product damage and providing high flexibility.

[0008] Furthermore, a microcontroller is provided on the right side of the fixed module. The input terminal of the microcontroller is electrically connected to an external power source to control electrical appliances.

[0009] Furthermore, the opening and closing mechanism also includes three springs, each of which is disposed between the rear end of the limiting block and the inner wall of the fixing groove to provide a restoring force for the limiting block.

[0010] Furthermore, the opening and closing mechanism also includes a motor, which is located in the middle of the right side of the moving module one. The output shaft of the motor passes through the round hole on the right side of the moving module one and is fixedly connected to the right end of the top block. The input end of the motor is electrically connected to the output end of the microcontroller to drive the top block to rotate.

[0011] Furthermore, the opening and closing mechanism also includes an angle sensor, which is disposed in the middle of the fixed groove. The detection end of the angle sensor is fixedly sleeved on the outer surface of the rotating shaft, and the output end of the angle sensor is electrically connected to the input end of the microcontroller to detect the rotation angle of the top block.

[0012] Furthermore, an installation plate is provided at the upper end of the guide column, and an electric push rod is provided at the lower middle part of the installation plate. The telescopic end of the electric push rod contacts the upper end of the second moving module, and the input end of the electric push rod is electrically connected to the output end of the microcontroller for easy mold closing.

[0013] Furthermore, an injection port is provided in the middle of the left side of the second mobile module, and mold ports are provided in the middle of the second mobile module, the middle of the first mobile module, and the middle of the fixed module. The injection port is connected to the mold port located in the middle of the second mobile module to facilitate product injection molding.

[0014] Furthermore, it also includes spring one and spring two. Spring one is disposed between the upper end of the fixed module and the lower end of the moving module one, and spring two is disposed between the upper end of the moving module one and the lower end of the moving module two. Spring one and spring two are both sleeved on the outer surface of the guide post to facilitate mold opening.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The automatic opening and closing structure of this injection mold part has the following advantages:

[0016] Based on the product shape requirements, the top block is driven by a motor to rotate and open the mold in sequence with moving module one and moving module two. The mold opening sequence can be determined according to the product shape requirements to avoid product damage, and it is highly flexible. Attached Figure Description

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

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of the opening and closing mechanism of this utility model;

[0020] Figure 4 This is an enlarged structural diagram of point A of this utility model.

[0021] In the diagram: 1 Fixed module, 2 Guide column, 3 Moving module one, 4 Moving module two, 5 Spring one, 6 Spring two, 7 Microcontroller, 8 Mounting plate, 9 Injection port, 10 Mold port, 11 Electric push rod, 12 Opening and closing mechanism, 121 Fixed groove, 122 Limit block, 123 Fixed block, 124 Spring three, 125 Toggle bar, 126 Toggle groove, 127 Top block, 128 Motor, 129 Angle sensor. Detailed Implementation

[0022] The technical solutions of the present utility model 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 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.

[0023] Please see Figure 1-4This embodiment provides a technical solution: an automatic opening and closing structure for injection molded parts, including a fixed module 1, with uniformly distributed guide pillars 2 at the upper end of the fixed module 1, a moving module 3 slidably connected between the four guide pillars 2 at the middle, and a moving module 4 slidably connected between the upper ends of the four guide pillars 2, and also including an opening and closing mechanism 12. A microcontroller 7 is provided on the right side of the fixed module 1, and the input end of the microcontroller 7 is electrically connected to an external power source. A mounting plate 8 is provided at the upper end of the guide pillars 2, and an electric push rod 11 is provided at the lower middle of the mounting plate 8. The telescopic end of the electric push rod 11 is connected to the upper end of the moving module 4. The input end of the electric push rod 11 is electrically connected to the output end of the microcontroller 7. The middle left side of the moving module 2 4 is provided with an injection port 9. The middle of the moving module 2 4, the middle of the moving module 1 3, and the middle of the fixed module 1 are all provided with mold ports 10. The injection port 9 is connected to the mold port 10 located in the middle of the moving module 2 4. It also includes a spring 1 5 and a spring 2 6. The spring 1 5 is set between the upper end of the fixed module 1 and the lower end of the moving module 1 3. The spring 2 6 is set between the upper end of the moving module 1 3 and the lower end of the moving module 2 4. The spring 1 5 and the spring 2 6 are both sleeved on the outer surface of the guide post 2.

[0024] Opening and closing mechanism 12: It includes a fixed groove 121, a limiting block 122, a fixed block 123, a toggle bar 125, a toggle groove 126, and a top block 127. The fixed groove 121 is provided in the middle of the right side of the moving module 1 3. The limiting blocks 122, which are symmetrically distributed vertically, are slidably connected to the rear side of the fixed groove 121. The upper right side of the fixed module 1 and the lower right side of the moving module 2 4 are both provided with fixed blocks 123. The fixed blocks 123 are installed in cooperation with the vertically adjacent limiting blocks 122. The middle of the fixed groove 121 is slidably connected with the toggle bars 125, which are vertically corresponding. The inner sides of the two limiting blocks 122 are provided with toggle grooves 126. The toggle bars 125 are installed in cooperation with the vertically adjacent toggle grooves 126. The middle of the fixed groove 121 is connected by a rotating shaft. A top block 127 is rotatably connected, and the arc surface of the top block 127 is respectively installed to mate with the end face of the toggle bar 125. The opening and closing mechanism 12 also includes springs 124, which are all disposed between the rear end of the limit block 122 and the inner wall of the fixing groove 121. The opening and closing mechanism 12 also includes a motor 128, which is disposed in the middle of the right side of the moving module 3. The output shaft of the motor 128 passes through the round hole on the right side of the moving module 3 and is fixedly connected to the right end of the top block 127. The input end of the motor 128 is electrically connected to the output end of the microcontroller 7. The opening and closing mechanism 12 also includes an angle sensor 129, which is disposed in the middle of the fixing groove 121. The detection end of the angle sensor 129 is fixedly sleeved on the outer surface of the rotating shaft. The output terminal of injection port 9 is electrically connected to the input terminal of microcontroller 7. First, microcontroller 7 activates electric push rod 11, which pushes down moving module 2 4, which in turn pushes down moving module 1 3, causing moving module 1 3 to contact fixed module 1. Finally, all three components come into contact, and the three injection ports 9 merge to form the shape of the product. At the same time, fixed block 123 enters fixed groove 121, and the inclined surface of fixed block 123 contacts the inclined surface of limiting block 122, pressing the limiting block 122 to the right, causing spring 3 124 to contract until the two no longer contact each other. Under the force of spring 3 124, limiting block 122 returns to its original position, causing the plane of fixed block 123 to contact the plane of limiting block 122 and lock fixed block 123. Then, raw material is injected into mold opening 10 through injection port 9. When mold opening is required, the microcontroller 7 activates the motor 128. According to the mold opening sequence, if the moving module 2 4 needs to be opened first, the output shaft of the motor 128 rotates clockwise. When the angle sensor 129 detects that the output shaft of the motor 128 has rotated 90 degrees, it will feed the information back to the microcontroller 7. The microcontroller 7 controls the motor 128 to rotate. At the same time, the arc surface of the top block 127 contacts the end face of the upper toggle bar 125 and pushes it upward. The toggle bar 125 moves the limit block 122 backward, thereby contacting the locking of the fixed block 123, so that the moving module 2 4 bounces up under the force of the spring 2 6, realizing the mold opening of the moving module 2 4. The mold opening sequence can be determined according to the needs of the product shape during mold opening, avoiding damage to the product and providing high flexibility.

[0025] The working principle of the automatic opening and closing structure of the injection mold part provided by this utility model is as follows: When product injection is required, the electric push rod 11 is first activated by the microcontroller 7. The electric push rod 11 pushes down the moving module 2 4, and the moving module 2 4 pushes down the moving module 1 3, so that the moving module 1 3 contacts the fixed module 1. Finally, the three are in contact, and the three injection ports 9 merge to form the shape of the product. At the same time, the fixed block 123 enters the fixed groove 121. The inclined surface of the fixed block 123 contacts the inclined surface of the limiting block 122 and presses the limiting block 122 to the right, causing the spring 3 124 to contract until the two no longer contact each other. The limiting block 122 returns to its original position under the force of the spring 3 124, so that the plane of the fixed block 123 contacts the plane of the limiting block 122 and locks the fixed block 123. Then, the process is completed. The raw material liquid is injected into the mold opening 10 through the injection port 9. When the mold needs to be opened, the microcontroller 7 turns on the motor 128. According to the mold opening sequence, if the moving module 2 4 needs to be opened first, the output shaft of the motor 128 rotates clockwise. When the angle sensor 129 detects that the output shaft of the motor 128 has rotated 90 degrees, it will feed back the information to the microcontroller 7. The microcontroller 7 controls the motor 128 to rotate. At the same time, the arc surface of the top block 127 contacts the end face of the upper toggle bar 125 and pushes it upward. The toggle bar 125 moves the limit block 122 backward and contacts the locking of the fixed block 123, so that the moving module 2 4 bounces up under the force of the spring 2 6, realizing the mold opening of the moving module 2 4. Then, the above actions are repeated to complete the mold opening of the moving module 3 and the product can be taken out.

[0026] It is worth noting that the microcontroller 7 disclosed in the above embodiments can be an STC series microcontroller, the motor 128 can be a KS-4632, the angle sensor 129 can be an MZK, and the electric push rod 11 can be a JC35FA20A. The microcontroller 7 controls the operation of the motor 128, the electric push rod 11, the angle sensor 129, and the electric push rod 11 using methods commonly used in the prior art.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic opening and closing structure of an injection mold piece, comprising a fixed mold module (1), the upper end of the fixed mold module (1) is provided with uniformly distributed guide columns (2), the middle part between the four guide columns (2) is slidably connected with a moving mold module one (3), and the upper end between the four guide columns (2) is slidably connected with a moving mold module two (4), characterized in that: It also includes the opening and closing mechanism (12); The opening and closing mechanism (12) comprises a fixed slot (121), a limiting block (122), a fixed block (123), a push bar (125), a push slot (126) and a top block (127), the right middle part of the moving module one (3) is provided with the fixed slot (121), the rear side of the fixed slot (121) is slidably connected with the limiting block (122) which is symmetrically distributed up and down, the right upper end of the fixed module (1) and the right lower end of the moving module two (4) are provided with the fixed block (123), the fixed block (123) is installed in cooperation with the limiting block (122) which is vertically adjacent, the middle part of the fixed slot (121) is slidably connected with the push bar (125) which is correspondingly arranged up and down, the opposite inner sides of the two limiting blocks (122) are provided with the push slot (126), the push bar (125) is installed in cooperation with the push slot (126) which is vertically adjacent, the middle part of the fixed slot (121) is rotatably connected with the top block (127) through the rotating shaft, and the curved surfaces of the top block (127) are installed in cooperation with the end surfaces of the push bar (125) respectively.

2. The automatic opening and closing structure of an injection mold piece according to claim 1, characterized in that: The right side of the fixed module (1) is provided with a single-chip microcomputer (7), and the input end of the single-chip microcomputer (7) is electrically connected with an external power supply.

3. The automatic opening and closing structure of an injection mold piece according to claim 1, characterized in that: The opening and closing mechanism (12) further comprises spring three (124), spring three (124) is arranged between the rear end of the limiting block (122) and the inner wall of the fixed slot (121).

4. The automatic opening and closing structure of an injection mold piece according to claim 2, characterized in that: The opening and closing mechanism (12) further comprises a motor (128), the motor (128) is arranged in the right middle part of the moving module one (3), the output shaft of the motor (128) is fixedly connected with the right end of the top block (127) through the circular hole in the right side of the moving module one (3), and the input end of the motor (128) is electrically connected with the output end of the single-chip microcomputer (7).

5. The automatic opening and closing structure of an injection mold piece according to claim 2, characterized in that: The opening and closing mechanism (12) further comprises an angle sensor (129), the angle sensor (129) is arranged in the middle part of the fixed slot (121), the detection end of the angle sensor (129) is fixedly sleeved on the outer surface of the rotating shaft, and the output end of the angle sensor (129) is electrically connected with the input end of the single-chip microcomputer (7).

6. The automatic opening and closing structure of an injection mold piece according to claim 2, characterized in that: The upper end of the guide column (2) is provided with a mounting plate (8), the lower end of the mounting plate (8) is provided with an electric push rod (11), the telescopic end of the electric push rod (11) is in contact with the upper end of the moving module two (4), and the input end of the electric push rod (11) is electrically connected with the output end of the single-chip microcomputer (7).

7. The automatic opening and closing structure of an injection mold piece according to claim 1, characterized in that: The left middle part of the moving module two (4) is provided with an injection port (9), the middle part of the moving module two (4), the middle part of the moving module one (3) and the middle part of the fixed module (1) are provided with a mold port (10), and the injection port (9) is communicated with the mold port (10) located in the middle part of the moving module two (4).

8. The automatic opening and closing structure of an injection mold piece according to claim 1, characterized in that: It also includes spring one (5) and spring two (6), the spring one (5) is arranged between the upper end of the fixed module (1) and the lower end of the moving module one (3), the spring two (6) is arranged between the upper end of the moving module one (3) and the lower end of the moving module two (4), and the spring one (5) and the spring two (6) are sleeved on the outer surface of the guide column (2).

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