Front mold slider structure and injection mold

Abstract

The utility model relates to the field of mold technology, and discloses a front mold slider structure and an injection mold, comprising two slider bodies that can open and close relative to each other, a slide groove is provided on the opposite sides of the two slider bodies, a shovel base that can move along the Z-axis direction and is used to drive the two slider bodies to close along the X-axis direction is arranged in the slide groove; the two ends of the slider body adjacent to the shovel base are connected to roller assemblies, and a lever is arranged between the two roller assemblies on the same side; wherein, when the two slider bodies are closed, an inverted point is formed between the two. The closing of the two slider bodies is driven by the cooperation between the shovel base and the slide groove, and the opening of the two slider bodies is driven by the cooperation between the lever and the roller assembly, and the two roller assemblies at the same end share a lever, so that the arrangement of the front mold slider structure is compact, the size of the mold can be reduced, and the production cost of the mold can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a front mold slider structure and an injection mold. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by methods such as injection molding, blow molding, extrusion, die-casting or forging, smelting, and stamping. In short, molds are tools used to shape objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material, and is known as the "mother of industry."

[0003] In the design of injection molds, multi-cavity molds with undercuts on the front mold are encountered. Such molds need to be designed with corresponding core-pulling structures when demolding, such as a front mold slider structure. In the existing front mold slider structure, each slider needs to be individually equipped with an inclined guide column or an inclined lever to drive the slider to disengage from the product undercut. However, the slider using this structure is larger in size, which will affect the size of the mold and ultimately increase the production cost of the mold. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a front mold slider structure, which drives two slider bodies to close respectively through two shovel bases to form an inverted hole between the two slider bodies; the two slider bodies are driven to open through the cooperation between the lever and the roller assembly to facilitate product demoulding; the same end of the two slider bodies shares a lever, so that the arrangement of the structure is compact, the size of the mold can be reduced, and the mold production cost can be reduced.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a front mold slider structure, comprising two slider bodies that can be relatively opened and closed, and a slide groove is provided on the opposite sides of the two slider bodies, and a shovel base that can move along the Z-axis direction and is used to drive the two slider bodies to close along the X-axis direction is provided in the slide groove;

[0006] The two ends of the slider body adjacent to the shovel base are connected to roller assemblies, and a lever that can move synchronously with the shovel base and is used to drive the two slider bodies to open along the X-axis direction is arranged between the two roller assemblies located on the same side; wherein, when the two slider bodies are closed, an inverted point is formed between the two.

[0007] Optionally, bosses are provided at both ends of the slider body close to the roller assembly, and pressure plates for limiting the movement of the slider body along the Z-axis direction are installed on the bosses.

[0008] Optionally, the bottom surface of the slide groove adopts a first inclined surface, one side of the lower part of the shovel base is in contact with the first inclined surface, and when the shovel base moves downward along the Z-axis direction, the two slider bodies are closed along the X-axis direction.

[0009] Optionally, a wear-resistant pad parallel to the corresponding first inclined surface is fixedly mounted on the lower part of the shovel base, and one side of the wear-resistant pad is in contact with the first inclined surface.

[0010] Optionally, both sides of the lower part of the lever adopt a second inclined surface that can fit with the roller assembly, the second inclined surface is parallel to the corresponding first inclined surface, and when the lever moves up along the Z axis, the two slider bodies open along the X axis.

[0011] Optionally, the roller assembly includes a base, one end of the base is fixedly embedded in a mounting hole provided on the slider body, and the other end is rotatably mounted with a roller body, and the outer circumferential surface of the roller body can fit with the second inclined surface.

[0012] Optionally, a groove is provided on a side of one of the slider bodies opposite to the slide slot, and a protrusion is provided on a side of the other slider body close to the groove, and when the two slider bodies are closed, the protrusion can be embedded in the groove.

[0013] An injection mold comprises a front mold assembly and a rear mold assembly which can be relatively opened and closed along the Z-axis direction, and the front mold slider structure is arranged in the front mold assembly; the front mold assembly comprises a front mold core, the rear mold assembly comprises a rear mold core, and when the front mold assembly and the rear mold assembly are molded together, a cavity connected to the undercut point is formed between the front mold core and the rear mold core.

[0014] Optionally, the front mold assembly also includes a panel, one side of which is fixedly mounted with a front mold heat insulation plate, the other side of which is connected to the front mold plate via a limiting bolt, and the front mold core is fixedly mounted on the side of the front mold plate opposite to the panel; wherein the slider body is embedded in a side of the front mold core close to the panel, and the upper ends of the shovel base and the shift rod are both passed through the front mold plate and fixedly connected to the panel.

[0015] Optionally, a limiting hole with a stepped structure is opened inside the front template, one end of the limiting bolt is located in the limiting hole, and the other end passes through the limiting hole and is fixedly connected to the panel.

[0016] Beneficial Effects

[0017] (1) In the present invention, the closing of the two slider bodies is driven by the cooperation between the shovel base and the slide groove, and the opening of the two slider bodies is driven by the cooperation between the lever and the roller assembly. The two roller assemblies located at the same end share a lever, so that the arrangement of the slider structure of the front mold is compact, which can reduce the size of the mold and reduce the production cost of the mold.

[0018] (2) In the utility model, the contact surface between the shovel base and the slide groove is an inclined surface. Through the cooperation between the side surface of the shovel base and the first inclined surface, the downward movement of the shovel base along the Z-axis direction can be converted into the movement of the slider body along the X-axis direction. The cooperation structure between the two is simple, maintenance is convenient, and the driving function of closing the slider body can be effectively realized.

[0019] (3) With respect to the above-mentioned shovel base and slide groove, a wear-resistant pad is arranged between the two. The wear-resistant pad is parallel to the first inclined surface and can drive the slider body to move along with the movement of the shovel base. The wear-resistant pad can also reduce the friction and wear between the shovel base and the slide groove, and can be quickly replaced after being worn, thereby reducing the use cost of the front mold slider structure.

[0020] (4) In the present invention, the contact surface between the lever and the roller assembly is also an inclined surface, and two second inclined surfaces are symmetrically distributed on both sides of the lever and can contact the corresponding roller assemblies respectively; when the lever moves upward, the roller assembly contacts the second inclined surfaces, and the two slider bodies are opened along the X-axis direction under the drive of the second inclined surfaces; the two roller assemblies of this structure share one lever, which makes the mold slider structure more compact, reduces the size of the injection mold, and reduces its cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an axonometric diagram of the front mold slider structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the exploded structure of the front mold slider structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the assembly structure of the shovel base and the slider body of the utility model;

[0024] Figure 4 It is a schematic diagram of the top view of the slider body of the utility model;

[0025] Figure 5 It is a schematic diagram of the structure of two slider bodies of the utility model being matched;

[0026] Figure 6 It is a structural schematic diagram of the roller assembly of the utility model;

[0027] Figure 7 It is a schematic diagram of the position structure of the lever and the roller assembly of the utility model;

[0028] Figure 8 It is a structural schematic diagram of the injection mold of the utility model;

[0029] Fig. 9 It is a schematic diagram of the connection structure between the lever and the panel of the utility model;

[0030] Fig.10 It is a schematic diagram of the structure in which the front and rear templates of the utility model are connected by a locking mechanism;

[0031] Among them, 1. slider body; 101. slide groove; 102. boss; 103. protrusion; 104. groove; 105. mounting hole; 2. shovel base; 201. wear-resistant pad; 3. lever; 4. pressure plate; 5. roller assembly; 501. base; 502. roller body; 503. screw; 504. baffle; 6. front mold insulation board; 7. panel; 8. front mold plate; 9. front mold core; 10. rear mold core; 11. rear mold plate; 12. rear mold pad; 13. rear mold bottom plate; 14. limiting hole; 15. limiting bolt; 16. ejector bottom plate; 17. ejector cover plate; 18. ejector body; 19. locking mechanism. DETAILED DESCRIPTION

[0032] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0033] Embodiment 1

[0034] like Figure 1-Figure 3 As shown, a front mold slider structure includes two slider bodies 1 that can open and close relatively, and a slide groove 101 is provided on the opposite sides of the two slider bodies 1. A shovel base 2 that can move along the Z-axis direction and is used to drive the two slider bodies 1 to close along the X-axis direction is arranged in the slide groove 101; roller assemblies 5 are connected to both ends of the slider body 1 adjacent to the shovel base 2, and a lever 3 that can move synchronously with the shovel base 2 and is used to drive the two slider bodies 1 to open along the X-axis direction is arranged between the two roller assemblies 5 on the same side.

[0035] As mentioned above, when the two slider bodies 1 are closed, an undercut point is formed between the two, and the undercut point is a cavity for undercutting the molded product; and the closing of the two slider bodies 1 is driven by the cooperation between the shovel base 2 and the slide groove 101, and the opening of the two slider bodies 1 is driven by the cooperation between the lever 3 and the roller assembly 5, and the two roller assemblies 5 located at the same end share a lever 3, thereby making the arrangement of the front mold slider structure compact, which can reduce the size of the mold and reduce the production cost of the mold.

[0036] Specifically, the bottom surface of the slide groove 101 adopts a first inclined surface, and one side of the lower part of the shovel base 2 is in contact with the first inclined surface; both sides of the lower part of the lever 3 adopt a second inclined surface that can be in contact with the roller assembly 5, and the second inclined surface is parallel to the corresponding first inclined surface; wherein, the shovel base 2 and the lever 3 can move synchronously in the same direction, and when the shovel base 2 moves downward along the Z-axis direction, the two slider bodies 1 are closed along the X-axis direction, and when the lever 3 moves upward along the Z-axis direction, the two slider bodies 1 are opened along the X-axis direction.

[0037] like Figure 2-Figure 3 As shown, the first inclined surface and the second inclined surface on the same side are parallel to each other, and the shovel base 2 and the lever 3 can move synchronously. Based on this, it can be ensured that the travel distance of the slider body 1 along the X-axis direction during the opening and closing process is the same, that is, the distance moved by the slider body 1 when it is opened is the same as the distance moved when it is closed.

[0038] When the shovel base 2 moves downward along the Z-axis direction, the side surface of the lower part of the shovel base 2 contacts the first inclined surface. Under the action of the first inclined surface, the movement of the shovel base 2 along the Z-axis direction can be converted into the movement of the slider body 1 along the X-axis direction, thereby realizing the closure of the two slider bodies 1 to form an inverted acupuncture point; in this process, the roller assembly 5 moves up along the second inclined surface to its end.

[0039] The lower part of the shovel base 2 is fixedly mounted with a wear-resistant pad 201 parallel to the corresponding first inclined surface, and one side of the wear-resistant pad 201 is in contact with the first inclined surface. The wear-resistant pad 201 is preferably made of materials such as graphite, which can provide lubrication for the movement between the shovel base 2 and the slide 101, and the wear-resistant pad 201 is fixedly mounted on the lower part of the shovel base 2 by screws 503. After it is worn, it can be quickly replaced to ensure the stability of the relative sliding between the shovel base 2 and the slide 101, and reduce the use cost of the front mold slider structure.

[0040] In addition, a sloped backhoe is provided on the side of the shovel base 2 opposite to the wear-resistant pad 201, which can prevent the risk of the slider body 1 moving backward due to high injection pressure.

[0041] like Figure 1-Figure 2 As shown, the lower part of the lever 3 is in an isosceles trapezoidal structure, and the width of the lever 3 gradually decreases from bottom to top until it remains constant; when the lever 3 moves up along the Z-axis direction, the second inclined surfaces on both sides of the lever 3 contact the roller assembly 5, and as the width of the lever 3 increases, the two opposite roller assemblies 5 are stretched open, that is, the upward movement of the lever 3 along the Z-axis direction can be converted into the translation of the roller assembly 5 along the X-axis direction through the second inclined surface, thereby driving the two slider bodies 1 to open along the X-axis direction; in this process, one side of the lower part of the shovel base 2 moves downward relative to the first inclined surface.

[0042] Since the lower part of the lever 3 is an isosceles trapezoidal structure, the two roller assemblies 5 located at the same end can share one lever 3, so that the arrangement of the front mold slider structure can be compact, the size of the mold can be reduced, and the production cost of the mold can be reduced; and levers 3 are provided at both ends of the slider body 1, the purpose of which is to ensure that the two ends of the slider body 1 can be closed smoothly.

[0043] In addition, after the two slider bodies 1 are fully opened, the roller assembly 5 moves to the end of the second inclined surface (such as Figure 7 As shown); since the front mold slider structure is generally installed on the mold for use, and the mold is installed on the injection molding machine for use, after the mold is opened, the slider body 1 corresponding to the lower side of the lever 3 can be supported by the shovel base 2, while the slider body 1 corresponding to the upper side of the lever 3 lacks support; therefore, only when the roller assembly 5 does not fall off the second inclined surface of the lever 3 can the corresponding slider body 1 be supported to prevent it from falling and deviating from the original position during the mold opening process.

[0044] like Figure 1-Figure 2 , Figure 6 As shown, the roller assembly 5 includes a base 501, one end of which is fixedly embedded in the mounting hole 105 opened on the slider body 1, and the other end is rotatably mounted with a roller body 502, and the outer circumferential surface of the roller body 502 can fit with the second inclined surface.

[0045] Specifically, the base 501 adopts a stepped shaft structure, and after one end of the base 501 is embedded in the mounting hole 105, one end of the screw 503 extends through the base 501 to the bottom of the mounting hole 105 and is screwed together with the slider body 1, and a baffle 504 is arranged between the end of the base 501 and the head of the screw 503 to realize the axial positioning of the roller body 502.

[0046] By having the outer circumferential surface of the roller body 502 in contact with the second inclined surface of the lever 3, it can not only achieve the purpose of driving the slider body 1 to open, but also convert the friction between the two into rolling friction to avoid unnecessary friction and wear; the roller assembly 5 has a simple structure and can be quickly disassembled and assembled on the slider body 1 for easy maintenance and replacement.

[0047] like Figure 4-Figure 5 As shown, in the two slider bodies 1 of the front mold slider structure, a groove 104 is provided on the side of one slider body 1 opposite to the slide groove 101, and a protrusion 103 is provided on the side of the other slider body 1 close to the groove 104, and when the two slider bodies 1 are closed, the protrusion 103 can be embedded in the groove 104. Through the cooperation between the protrusion 103 and the groove 104, the stability of the two slider bodies 1 after closing can be improved, and the misalignment between the two slider bodies 1 due to excessive injection force can be avoided.

[0048] like Figure 1-Figure 2, Figure 4-Figure 5 As shown, bosses 102 are provided at both ends of the slider body 1 close to the roller assembly 5 , and a pressure plate 4 is installed on the boss 102 for limiting the movement of the slider body 1 along the Z-axis direction.

[0049] Since the opening and closing of the slider body 1 is driven vertically, that is, the slider body 1 is driven to move horizontally along the X-axis direction by raising and lowering the lever 3 and the shovel base 2 along the Z-axis direction, the bottom of the slider body 1 will be restricted by the mold and will not move downward as the shovel base 2 moves downward. However, if there is no restriction above it, the slider body 1 will move upward as the lever 3 moves upward.

[0050] In order to avoid the above situation, a pressure plate 4 is set on the slider body 1. The pressure plate 4 is fixedly connected to the mold, parallel to the X-axis direction, and pressed on the boss 102 on the side of the slider body 1. One pressure plate 4 can simultaneously limit the movement of the two slider bodies 1 along the Z-axis direction, so that they can only open and close relative to each other along the X-axis direction.

[0051] Embodiment 2

[0052] On the basis of the first embodiment, the present invention further proposes an injection mold, which adopts the front mold slider structure proposed in the first embodiment.

[0053] like Figure 8-Figure 9 As shown, an injection mold includes a front mold component and a rear mold component, which can be relatively opened and closed along the Z-axis direction, and the front mold slider structure is arranged in the front mold component.

[0054] The front mold assembly includes a panel 7, a front mold heat insulation plate 6 is fixedly installed on one side of the panel 7, and a front mold plate 8 is connected to the other side through a limiting bolt 15, and a front mold core 9 is fixedly installed on the side of the front mold plate 8 opposite to the panel 7; wherein, the slider body 1 is embedded in the side of the front mold core 9 close to the panel 7, and the upper ends of the shovel base 2 and the shift rod 3 pass through the front mold plate 8 and are fixedly connected to the panel 7.

[0055] The rear mold assembly includes a rear mold pad 12, a rear mold plate 11 is arranged on one side of the rear mold pad 12 close to the front mold plate 8, and a rear mold bottom plate 13 is arranged on the other side, and a rear mold core 10 corresponding to the front mold core 9 is fixedly installed on the side of the rear mold plate 11 opposite to the rear mold pad 12; when the front mold assembly and the rear mold assembly are molded together, a cavity connected to the undercut point is formed between the front mold core 9 and the rear mold core 10.

[0056] As mentioned above, the panel 7 is connected to the front template 8 by the limit bolt 15, and under the action of the external injection molding machine, the panel 7 is opened first, driving the shovel base 2 and the lever 3 to move, and the two slider bodies 1 of the front mold slider structure are opened through the cooperation between the lever 3 and the roller assembly 5, completing the corresponding insert core pulling, at this time, the front template 8 and the rear template 11 are connected and moved synchronously through the existing locking mechanism 19 (such as Fig.10 As shown); the front template 8 and the rear template 11 are then driven to open relative to each other through the limit bolt 15 to complete the mold opening; at this time, the locking mechanism 19 is unlocked, so that the front template 8 and the rear template 11 can be relatively opened; then the ejector assembly provided in the rear mold assembly is used to eject the product after injection molding.

[0057] Among them, a limiting hole 14 with a stepped structure is opened inside the front template 8, one end of the limiting bolt 15 is located in the limiting hole 14, and the other end passes through the limiting hole 14 and is fixedly connected to the panel 7. When the panel 7 retreats under the action of the injection molding machine, the limiting bolt 15 and the panel 7 retreat synchronously, and the end thereof located in the limiting hole 14 slides in the limiting hole 14 until the head of the limiting bolt 15 contacts the protruding end surface in the limiting hole 14, and the locking mechanism 19 is released. At this time, the panel 7 continues to move backward, and the limiting bolt 15 can drive the front template 8 to open relative to the rear template 11 to complete the mold opening action of the mold.

[0058] In order to improve the sliding stability, a sleeve is sleeved on the outer side of the limiting bolt 15, and one end of the sleeve can be embedded in the panel 7; through the contact and friction between the sleeve and the inner wall of the small diameter of the limiting hole 14, friction and wear between the limiting bolt 15 and the front template 8 can be avoided, thereby reducing the use cost of the injection mold.

[0059] The ejector assembly includes an ejector base plate 16, one side of the ejector base plate 16 is covered with an ejector cover plate 17 for fixing an ejector body 18, and one end of the ejector body 18 is fixedly installed between the ejector base plate 16 and the ejector cover plate 17, and the other end can pass through the rear mold pad 12, the rear mold plate 11 and the rear mold core 10 in sequence to the cavity, so as to eject the product from the cavity after the mold is opened; and the ejector base plate 16 and the ejector cover plate 17 are located in the ejector cavity opened on one side of the rear mold pad 12, and under the drive of the injection molding machine, the ejector base plate 16 and the ejector cover plate 17 can drive the ejector body 18 to move axially in the ejector cavity.

[0060] Working principle:

[0061] Injection molds are usually loaded into injection molding machines for use;

[0062] When the injection molding machine is finished, the injection molding machine is used to drive the panel 7 to retreat. The lever 3 will retreat with the panel 7 because it is fixed on the panel 7. The front template 8 is kept in contact with the rear template 11 by the locking mechanism 19. The lever 3 drives the roller assembly 5 to retreat. Since the roller assembly 5 is fixed on the slider body 1, the two slider bodies 1 will retreat synchronously to complete the action of disengaging from the product inverted buckle.

[0063] When the front mold slider structure is withdrawn, the locking mechanism 19 is released, and the injection mold continues to be opened by the injection molding machine; under the action of the limit bolt 15, the front mold plate 8 and the rear mold plate 11 are separated, and the front and rear molds of the mold are opened;

[0064] After the front and rear molds are opened, the rear mold slider is withdrawn under the drive of the oil cylinder, and the rear mold slider is separated from the product and buckled;

[0065] When the rear mold slider is separated from the product undercut, the ejector base plate 16 is pushed out under the thrust of the injection molding machine, and the product is ejected under the action of the ejector body 18 and then falls freely;

[0066] The two slider bodies 1 in the front mold slider structure can be reset by driving the shovel base 2 when the mold is closed, and the back of the shovel base 2 is provided with an inclined back shovel to prevent the risk of the slider body 1 retreating due to excessive injection pressure.

[0067] To sum up, the front mold slider structure and the injection mold proposed in the utility model can be used in conjunction with each other, and the front mold slider structure is particularly suitable for multi-cavity molds with undercuts in the front mold; wherein, the two slider bodies 1 of the front mold slider structure share the lever 3, so that the front mold slider structure is compactly arranged, which can reduce the size of the injection mold, reduce the cost of the mold, and improve the cooling effect of the mold.

[0068] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0069] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0070] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A front mold slider structure, characterized in that: It comprises two slider bodies (1) capable of opening and closing relative to each other, wherein a slide groove (101) is provided on opposite sides of the two slider bodies (1), and a shovel base (2) capable of moving along the Z-axis direction and used for driving the two slider bodies (1) to close along the X-axis direction is provided in the slide groove (101); The two ends of the slider body (1) adjacent to the shovel base (2) are connected to roller assemblies (5), and a lever (3) capable of moving synchronously with the shovel base (2) and used for driving the two slider bodies (1) to open along the X-axis direction is provided between the two roller assemblies (5) located on the same side; Wherein, when the two slider bodies (1) are closed, an inverted acupuncture point is formed between the two slider bodies.

2. The front mold slider structure according to claim 1, characterized in that: Bosses (102) are provided at both ends of the slider body (1) close to the roller assembly (5), and a pressure plate (4) for limiting the movement of the slider body (1) along the Z-axis direction is installed on the bosses (102).

3. The front mold slider structure according to claim 2, characterized in that: The bottom surface of the slide groove (101) is a first inclined surface, one side of the lower part of the shovel base (2) is in contact with the first inclined surface, and when the shovel base (2) moves downward along the Z-axis direction, the two slider bodies (1) are closed along the X-axis direction.

4. The front mold slider structure according to claim 3 is characterized in that: A wear-resistant pad (201) parallel to the corresponding first inclined surface is fixedly mounted on the lower part of the shovel base (2), and one side of the wear-resistant pad (201) is in contact with the first inclined surface.

5. The front mold slider structure according to claim 3, characterized in that: Both sides of the lower part of the lever (3) are provided with second inclined surfaces that can fit with the roller assembly (5); the second inclined surfaces are parallel to the corresponding first inclined surfaces; and when the lever (3) moves upward along the Z-axis direction, the two slider bodies (1) open along the X-axis direction.

6. The front mold slider structure according to claim 5, characterized in that: The roller assembly (5) comprises a base (501), one end of the base (501) is fixedly embedded in a mounting hole (105) provided on the slider body (1), and the other end is rotatably mounted with a roller body (502), and the outer circumferential surface of the roller body (502) is capable of fitting with the second inclined surface.

7. The front mold slider structure according to claim 1, characterized in that: A groove (104) is provided on a side of one of the slider bodies (1) opposite to the slide groove (101), and a protrusion (103) is provided on a side of the other slider body (1) close to the groove (104); and when the two slider bodies (1) are closed, the protrusion (103) can be embedded in the groove (104).

8. An injection mold having the front mold slider structure according to any one of claims 1 to 7, characterized in that: It comprises a front mold assembly and a rear mold assembly which can be relatively opened and closed along the Z-axis direction, and the front mold slider structure is arranged in the front mold assembly; The front mold assembly comprises a front mold core (9), the rear mold assembly comprises a rear mold core (10), and when the front mold assembly and the rear mold assembly are molded together, a cavity connected to the undercut point is formed between the front mold core (9) and the rear mold core (10).

9. The injection mold according to claim 8, characterized in that: The front mold assembly also includes a panel (7), a front mold heat insulation plate (6) is fixedly mounted on one side of the panel (7), and the other side is connected to the front mold plate (8) via a limiting bolt (15), and the front mold core (9) is fixedly mounted on a side of the front mold plate (8) opposite to the panel (7); The slider body (1) is embedded in a side of the front mold core (9) close to the panel (7), and the upper ends of the shovel base (2) and the shift rod (3) pass through the front mold plate (8) and are fixedly connected to the panel (7).

10. The injection mold according to claim 9, characterized in that: A limiting hole (14) with a stepped structure is provided inside the front template (8); one end of the limiting bolt (15) is located in the limiting hole (14), and the other end passes through the limiting hole (14) to be fixedly connected to the panel (7).

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