Contact pin inserting jig of horizontal machine injection mold

Abstract

The utility model relates to the technical field of mold manufacturing, and discloses a contact pin inserting jig of a horizontal machine injection mold, which comprises a first jig plate and a second jig plate which are arranged in parallel, and the first jig plate and the second jig plate are connected through a connecting assembly so as to adjust the distance between the first jig plate and the second jig plate; an ejector and a positioning guide column are installed on the side, close to the first jig plate, of the second jig plate, and a handle is installed on the other side of the second jig plate. The free ends of the ejector and the positioning guide column penetrate through the first jig plate, and the contact pin is assembled with the free end of the ejector in an inserted mode and is opposite to the insertion hole of the mold core. Compared with manual one-by-one insertion, the contact pin insertion device can complete insertion of a plurality of contact pins at one time, shortens single-mode insertion time, improves actual productivity, is accurate in insertion, avoids visual fatigue errors of manual operation, avoids the situation that the contact pins are inserted reversely or misplaced, avoids potential safety hazards, and improves production efficiency. And the plug-in mounting precision and the subsequent product injection molding effect can be improved.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing technology, specifically to a stylus insertion fixture for a horizontal injection mold. Background Technology

[0002] like Figure 1 The mold body 7 shown is an injection mold for a horizontal injection molding machine. The mold core 8 is installed inside the mold cavity of the mold body 7. During the injection molding process of some products, it is necessary to insert the contact pin 4 into the mold core 8. This process is currently mostly done manually, which has the following drawbacks:

[0003] 1. Due to the small size and slender shape of the stylus, manual insertion is difficult, and it is easy to insert the stylus 4 with the two ends reversed.

[0004] 2. Because it is a horizontal machine, the injection molding machine door can only be opened to insert the contact pins one by one after the first mold is produced. This is time-consuming and labor-intensive, and the downtime is long, which reduces the actual production capacity.

[0005] 3. Workers perform repetitive tasks, which are physically demanding and can easily lead to fatigue, resulting in higher safety risks.

[0006] Therefore, this application proposes a stylus insertion fixture for a horizontal injection mold. Utility Model Content

[0007] To address the technical problems existing in the background art, this utility model proposes a stylus insertion fixture for a horizontal injection mold.

[0008] The present invention provides a stylus insertion fixture for a horizontal injection mold, comprising a first fixture plate and a second fixture plate arranged parallel to each other, wherein the first fixture plate and the second fixture plate are connected by a connecting component to adjust the distance between them.

[0009] The second fixture plate is equipped with an ejector and a positioning guide post on the side closest to the first fixture plate, and a handle is installed on the other side of the second fixture plate.

[0010] The free ends of the ejector and the positioning guide post both penetrate the first fixture plate. The stylus is inserted and assembled with the free end of the ejector and is opposite to the insertion hole of the mold core. The positioning guide post is symmetrically distributed on both sides of the ejector and is slidably assembled with the mold body.

[0011] As a further optimization of this utility model, the connecting component includes multiple connecting units, which are arranged in a rectangular array between the first fixture plate and the second fixture plate.

[0012] As a further optimization of this utility model, the connecting unit includes a connecting rod and a spring. One end of the connecting rod is fixed to the first fixture plate, and the other end of the connecting rod slides through the second fixture plate and is fitted with a stop block. The spring is fitted on the connecting rod and is fixedly connected between the first fixture plate and the second fixture plate.

[0013] As a further optimization of this utility model, both the first fixture plate and the mold body are provided with sleeve holes adapted to the positioning guide post. One end of the positioning guide post is fixed to the second fixture plate, and the other end of the positioning guide post passes through the first fixture plate and is inserted and assembled with the sleeve hole on the mold body.

[0014] As a further optimization of this utility model, ball bearing guide sleeves are installed in the sleeve holes of both the first fixture plate and the mold body. The free end of the positioning guide post slides through the ball bearing guide sleeve on the first fixture plate and slides with the ball bearing guide sleeve on the mold body.

[0015] As a further optimization of this utility model, a through hole adapted to the ejector is provided in the middle of the first fixture plate. When the second fixture plate approaches the first fixture plate, the ejector is inserted into the through hole, so that the contact pin on the free end of the ejector is inserted into the mold core.

[0016] As a further optimization of this utility model, the free end of the ejector extends horizontally and is equipped with a positioning sleeve that matches the end of the contact pin. One end of the contact pin is inserted into the positioning sleeve, and the other end of the contact pin is opposite to the insertion hole on the mold core.

[0017] As a further optimization of this utility model, the number of contact pins, insertion holes on the mold core, and positioning sleeves are all multiple and consistent, with multiple contact pins corresponding to and inserting into multiple positioning sleeves one by one.

[0018] In one embodiment, the mold body has two mold cavities, each of which is equipped with a mold core. Each mold core has three insertion holes, for a total of six insertion holes. The number of contact pins and positioning sleeve holes are both six, so as to enable the synchronous insertion of the six contact pins.

[0019] As a further optimization of this utility model, the mold body is installed on the workbench, and the two ends of the first fixture plate extend to the top and bottom of the mold body respectively and are each equipped with pads, with the pads facing the surface of the workbench.

[0020] The stator insertion fixture for horizontal injection molds proposed in this utility model has the following beneficial effects:

[0021] (I) When using this utility model, the first fixture plate is placed on the surface of the mold body, and the free end of the positioning guide post is inserted into the mold body to complete the initial positioning. By pressing the second fixture plate with the handle, the second fixture plate gradually approaches the first fixture plate and drives the ejector to accurately push the stylus pin into the mold core insertion hole. Compared with manual insertion one by one, this fixture can complete the insertion of multiple stylus pins at one time, shorten the single mold insertion time, thereby improving the actual production capacity. Moreover, the insertion is accurate, avoiding visual fatigue errors caused by manual operation, which may lead to stylus pins being inserted in reverse or misaligned, as well as safety hazards. This is conducive to improving the insertion accuracy and the subsequent product injection molding effect.

[0022] (ii) The spring and connecting rod of the connecting unit cooperate to make the distance between the first fixture plate and the second fixture plate elastically adjustable to adapt to different mold core depth requirements. When the mold core insertion hole depth changes, the spring is compressed or extended to ensure that the ejector can always push the contact pin completely into the insertion hole. There is no need to replace the fixture or adjust the parameters, which enhances the equipment versatility and reduces the enterprise's fixture inventory costs.

[0023] (III) The positioning guide post is slidably connected to the mold body sleeve hole through the ball guide sleeve. While reducing the friction coefficient, it can also improve the guiding accuracy, ensure the coaxiality of the stylus and the mold core insertion hole, and the positioning sleeve at the free end of the ejector is precisely matched with the end of the stylus, further limiting the radial sway of the stylus and avoiding mold damage or stylus deformation caused by insertion offset, thereby improving the product qualification rate.

[0024] (iv) The handle design makes it easy for operators to hold and push the fixture without having to bend over or reach into the mold, reducing the risk of lumbar strain. The spring in the connecting unit plays a certain buffering role, thereby reducing the impact force of insertion and avoiding the contact pin breaking and splashing, which helps to improve operational safety. The fixture has a compact overall structure and can be quickly inserted after the injection molding machine opens the mold without having to stop the machine for a long time. It conforms to the ergonomic design and reduces the workload of workers.

[0025] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This utility model Figure 1 A schematic diagram of a partial cross-sectional structure;

[0028] Figure 3 This is a front structural diagram of the present invention;

[0029] Figure 4 This utility model Figure 1A schematic diagram of a partial cross-sectional structure.

[0030] Figure descriptions: 1. First jig plate; 2. Second jig plate; 3. Ejector; 4. Contact pin; 5. Handle; 6. Positioning guide post; 7. Mold body; 8. Mold core; 9. Connecting rod; 10. Spring; 11. Ball bearing guide sleeve; 12. Pad block; 13. Positioning sleeve; 14. Worktable. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] like Figures 1-4 As shown, a stylus insertion fixture for a horizontal injection mold includes a first fixture plate 1 and a second fixture plate 2 arranged parallel to each other. The first fixture plate 1 and the second fixture plate 2 are connected by a connecting component to adjust the distance between them.

[0034] The second fixture plate 2 is equipped with an ejector 3 and a positioning guide post 6 on the side close to the first fixture plate 1, and a handle 5 is installed on the other side of the second fixture plate 2.

[0035] The free ends of the ejector 3 and the positioning guide post 6 both penetrate the first fixture plate 1. The stylus 4 is inserted and assembled with the free end of the ejector 3 and is opposite to the insertion hole of the mold core 8. The positioning guide post 6 is symmetrically distributed on both sides of the ejector 3 and is slidably assembled with the mold body 7.

[0036] To address the issues of low efficiency and error-proneness in traditional manual insertion of styluses, this fixture achieves mechanized insertion through a double-plate structure. The first fixture plate 1 and the second fixture plate 2 are elastically connected by a connecting component, which can adapt to different mold core depths. The positioning guide post 6 slides with the mold body 7 to ensure precise positioning of the fixture and avoid insertion misalignment. After the horizontal injection molding machine opens the mold, the fixture is placed on the mold body 7, the positioning guide post 6 is inserted into the mold sleeve hole, and the second fixture plate 2 is pressed by the handle 5. The ejector 3 simultaneously pushes the styluse 4 into the insertion hole of the mold core 8, completing the insertion of multiple styluses at once. Compared with manual operation one by one, this significantly improves the efficiency and accuracy of styluse insertion.

[0037] Specifically, such as Figure 1 As shown, the connecting component includes multiple connecting units, which are arranged in a rectangular array between the first fixture plate 1 and the second fixture plate 2;

[0038] The rectangular array of connecting units (such as 4 symmetrically distributed units) ensures that the fixture is subjected to uniform force and avoids tilting during pressing. Each connecting unit works independently. When the mold core depth changes, the springs 10 of each connecting unit are compressed or extended synchronously to keep the fixture moving in parallel. For example, the fixture can adapt to different molds with a 5mm difference in core depth without adjustment, making it highly versatile.

[0039] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, the connecting unit includes a connecting rod 9 and a spring 10. One end of the connecting rod 9 is fixed to the first fixture plate 1, and the other end of the connecting rod 9 slides through the second fixture plate 2 and is fitted with a stop block. The spring 10 is fitted on the connecting rod 9 and is fixedly connected between the first fixture plate 1 and the second fixture plate 2.

[0040] Spring 10 provides elastic cushioning. When pressed, the spring is compressed to generate thrust, which allows the ejector 3 to smoothly push the contact pin 4, avoiding excessive impact force that could cause the contact pin to break. For example, if the spring stiffness coefficient is 5N / mm, when the pressing stroke is 10mm, it provides a stable thrust of 50N to ensure that the contact pin is inserted at a uniform speed and reduce the risk of deformation.

[0041] Specifically, both the first fixture plate 1 and the mold body 7 are provided with sleeve holes that are adapted to the positioning guide post 6. One end of the positioning guide post 6 is fixed to the second fixture plate 2, and the other end of the positioning guide post 6 passes through the first fixture plate 1 and is inserted into the sleeve hole on the mold body 7 for assembly.

[0042] The fitting accuracy between the positioning guide post 6 and the sleeve hole is H7 / g6, ensuring that the coaxiality error between the fixture and the mold body 7 is ≤0.05mm. For example, during the insertion process, the positioning guide post 6 guides the fixture to move along the mold axis, avoiding misalignment between the stylus and the insertion hole due to offset. It is especially suitable for the synchronous insertion of multi-cavity molds (such as double-cavity molds), ensuring that each stylus is accurately aligned with the corresponding insertion hole.

[0043] Furthermore, such as Figures 1-4 As shown, ball bearing guide sleeves 11 are installed in the sleeve holes of the first fixture plate 1 and the mold body 7. The free end of the positioning guide post 6 slides through the ball bearing guide sleeve 11 on the first fixture plate 1 and slides to assemble with the ball bearing guide sleeve 11 on the mold body 7.

[0044] The ball bearing guide sleeve 11 can reduce the sliding friction coefficient of the positioning guide post 6, thereby reducing the pushing resistance of the fixture and making operation easier. At the same time, the precision guiding function of the ball bearing guide sleeve can control the insertion error within ±0.1mm. For example, when inserting a fine stylus with a diameter of 0.5mm, it can still maintain high-precision alignment and avoid insertion jamming or offset caused by high frictional resistance.

[0045] Specifically, the first fixture plate 1 has a through hole in the middle that is compatible with the ejector 3. When the second fixture plate 2 approaches the first fixture plate 1, the ejector 3 is inserted into the through hole, so that the contact pin 4 on the free end of the ejector 3 is inserted into the mold core 8.

[0046] The clearance between the through hole and the ejector 3 is 0.2mm, which ensures smooth movement of the ejector and limits its radial wobble. The second fixture plate 2 drives the ejector 3 to push the stylus 4 to fully insert into the mold core insertion hole. The stroke is precisely controlled to avoid over-insertion that could damage the mold or the stylus.

[0047] Specifically, such as Figure 3 and Figure 4 As shown, the free end of the ejector 3 extends horizontally and is equipped with a positioning sleeve 13 that is adapted to the end of the contact pin 4. One end of the contact pin 4 is inserted into the positioning sleeve 13, and the other end of the contact pin 4 is opposite to the insertion hole on the mold core 8.

[0048] The positioning sleeve 13 and the contact pin 4 are reliably fixed during insertion, preventing them from falling off.

[0049] Specifically, the number of the contact pins 4, the insertion holes on the mold core 8, and the positioning sleeves 13 are all multiple and the same, with each contact pin 4 corresponding to and being inserted into a multiple positioning sleeve 13.

[0050] The one-to-one correspondence design of multiple sets of contact pins and positioning sleeves enables batch insertion. All contact pins can be installed in a single operation. For example, in a dual-cavity mold, each set of mold cores 8 has 3 insertion holes. The 6 positioning sleeves 13 of the fixture can be aligned with the insertion holes simultaneously, which can reduce insertion time and significantly improve efficiency compared to manual insertion one by one, and avoid rework caused by missing or incorrect insertion.

[0051] Specifically, such as Figure 4 As shown, the mold body 7 is mounted on the workbench 14. The two ends of the first fixture plate 1 extend to the top and bottom of the mold body 7 respectively and are each equipped with a pad 12. The pad 12 is opposite to the table surface of the workbench 14.

[0052] The pad 12 and the worktable 14 form a support surface. When the fixture is placed on the mold, the pad 12 bears the weight of the fixture, preventing the first fixture plate 1 from directly pressing against the mold surface and protecting the mold precision. The pad is made of wear-resistant rubber material, which can buffer the impact force when the fixture is placed, and at the same time provide anti-slip function to ensure the stability of the insertion process.

[0053] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A stylus insertion fixture for a horizontal injection mold, characterized in that, It includes a first jig plate (1) and a second jig plate (2) arranged parallel to each other, and the first jig plate (1) and the second jig plate (2) are connected by a connecting component to adjust the distance between them; The second fixture plate (2) is equipped with an ejector (3) and a positioning guide post (6) on the side close to the first fixture plate (1), and a handle (5) is installed on the other side of the second fixture plate (2). The free ends of the ejector (3) and the positioning guide (6) both penetrate the first fixture plate (1). The stylus (4) is inserted and assembled with the free end of the ejector (3) and is opposite to the insertion hole of the mold core (8). The positioning guide (6) is symmetrically distributed on both sides of the ejector (3) and is slidably assembled with the mold body (7).

2. The stylus insertion fixture for a horizontal injection mold according to claim 1, characterized in that, The connecting component includes multiple connecting units, which are arranged in a rectangular array between the first fixture plate (1) and the second fixture plate (2).

3. The stylus insertion fixture for a horizontal injection mold according to claim 1, characterized in that, The connecting unit includes a connecting rod (9) and a spring (10). One end of the connecting rod (9) is fixed to the first fixture plate (1), and the other end of the connecting rod (9) slides through the second fixture plate (2) and is fitted with a stop block. The spring (10) is fitted on the connecting rod (9) and is fixedly connected between the first fixture plate (1) and the second fixture plate (2).

4. The stylus insertion fixture for a horizontal injection mold according to claim 1, characterized in that, Both the first fixture plate (1) and the mold body (7) are provided with sleeve holes that are compatible with the positioning guide post (6). One end of the positioning guide post (6) is fixed to the second fixture plate (2), and the other end of the positioning guide post (6) passes through the first fixture plate (1) and is inserted into the sleeve hole on the mold body (7).

5. The stylus insertion fixture for a horizontal injection mold according to claim 3, characterized in that, Ball bearing guide sleeves (11) are installed in the bushing holes of the first fixture plate (1) and the mold body (7). The free end of the positioning guide post (6) slides through the ball bearing guide sleeve (11) on the first fixture plate (1) and slides with the ball bearing guide sleeve (11) on the mold body (7).

6. The stylus insertion fixture for a horizontal injection mold according to claim 1, characterized in that, The first fixture plate (1) has a through hole in the middle that is compatible with the ejector (3). When the second fixture plate (2) approaches the first fixture plate (1), the ejector (3) is inserted into the through hole, so that the contact pin (4) on the free end of the ejector (3) is inserted into the mold core (8).

7. The stylus insertion fixture for a horizontal injection mold according to claim 1, characterized in that, The free end of the ejector (3) extends horizontally and is fitted with a positioning sleeve (13) that is compatible with the end of the contact pin (4). One end of the contact pin (4) is inserted into the positioning sleeve (13), and the other end of the contact pin (4) is opposite to the insertion hole on the mold core (8).

8. The stylus insertion fixture for a horizontal injection mold according to claim 7, characterized in that, The number of the stylus (4), the insertion hole on the mold core (8) and the positioning sleeve (13) are all multiple and the same. The multiple stylus (4) correspond to the multiple positioning sleeves (13) one by one and are inserted.

9. The stylus insertion fixture for a horizontal injection mold according to claim 1, characterized in that, The mold body (7) is installed on the workbench (14). The two ends of the first fixture plate (1) extend to the top and bottom of the mold body (7) respectively and are equipped with pads (12). The pads (12) are opposite to the surface of the workbench (14).

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