Mould structure for rubbing front mould insert into sliding block

Abstract

The utility model discloses a mold structure for rubbing a front mold insert into a sliding block, which comprises a mold base, a sliding block seat is connected to one side of the top end of the mold base in a sliding manner, a sliding block insert is mounted at the top end of the sliding block seat in a clamping manner, and a buffer component is fixedly mounted at the joint of the sliding block seat and the sliding block insert. According to the mold structure for rubbing the front mold insert into the sliding block, by optimizing the matching precision and buffering design of the sliding block and the front mold insert, friction force is reduced, it is ensured that the sliding block smoothly advances and retreats, and the injection molding precision is improved; the service life of the mold is prolonged; by arranging a plurality of connecting columns, an assembling block and a plate pressing block, through a multi-point guiding structure and a self-lubricating system, the stability and the lubricating effect of the sliding block are improved, and the phenomena of uneven abrasion and clamping stagnation are reduced; the cooling temperature control pipeline is arranged, and the cooling channel and the temperature control system are designed in the contact area of the sliding block and the front mold insert, so that the temperature stability of the mold in the working process is ensured, and the working efficiency of the sliding block is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a mold structure in which a front mold insert is rubbed into a slider. Background Technology

[0002] In the injection molding process, the fit between the front mold insert and the slider often directly affects the molding quality of the product. The front mold insert can increase the molding space of the mold by rubbing into the slider mold, thereby improving the molding efficiency and quality of the mold. The use of inserts can reduce the wear of the mold during long-term use and extend the service life of the mold. The design of the inserts means that when the mold needs to be repaired or adjusted, only the inserts need to be replaced instead of the entire mold. This can greatly simplify the maintenance process and save time and costs. Especially under the long-term movement and high pressure of the slider, the inserts can be replaced and maintained more easily.

[0003] However, traditional mold structures have the following drawbacks:

[0004] (1) In traditional mold design, the matching method of front mold insert and slider is more common, but it often has problems such as unstable structure, excessive friction and poor wear resistance, which causes the slider to wear during operation, reducing the service life of the mold, and may lead to defective products in the injection molding process. Especially in high-frequency production process, the sliding back and forth of the slider and the rubbing of the insert will cause great wear, thus affecting the stability of the mold and production efficiency.

[0005] (2) When the front mold insert and the slider are in contact, the excessive friction causes the slider to move unevenly, which increases wear and reduces the service life of the mold.

[0006] (3) In traditional design, the fit between the front mold insert and the slider may not be precise enough, which may cause the slider to jam or deviate during the advance and retreat process, affecting the molding accuracy of the product.

[0007] (4) Traditional materials and structural designs make the friction parts of the front mold insert and the slider prone to wear, resulting in frequent mold maintenance and increased production costs;

[0008] (5) Due to the imperfect contact between the slider and the insert, the slider's advance and retreat process may be unstable, resulting in pressure fluctuations during the molding process and affecting the injection molding quality. Utility Model Content

[0009] The purpose of this utility model is to provide a mold structure in which the front mold insert rubs into the slider, to solve the problems mentioned in the background art. In the traditional mold design, the matching method of the front mold insert and the slider is common, but it often has problems such as unstable structure, excessive friction, and poor wear resistance. This leads to wear of the slider during operation, reduces the service life of the mold, and may cause defective products in the injection molding process. Especially in high-frequency production processes, the advance and retreat of the slider and the rubbing of the insert will cause great wear, thereby affecting the stability of the mold and production efficiency. When the front mold insert and the slider are matched, the excessive friction causes the slider to move unevenly, increasing wear and reducing the service life of the mold. In the traditional design, the matching between the front mold insert and the slider may not be precise enough, causing the slider to jam or deviate during the advance and retreat, affecting the molding accuracy of the product. Traditional material and structural design makes the friction parts of the front mold insert and the slider prone to wear, resulting in frequent mold maintenance and increased production costs. Due to the imperfect contact between the slider and the insert, the advance and retreat of the slider may be unstable, causing pressure fluctuations during the molding process and affecting the injection molding quality.

[0010] To achieve the above objectives, this utility model provides the following technical solution: a mold structure for a front mold insert to be inserted into a slider, comprising a mold base, a slider seat slidably connected to one side of the top of the mold base, a slider insert being engaged with the top of the slider seat, a buffer assembly fixedly installed at the connection between the slider seat and the slider insert, a pressure plate fixedly installed on the other side of the top of the mold base, a first connecting post fixedly installed on one side of the top of the pressure plate, an assembly block installed on the top of the first connecting post, a second connecting post fixedly installed on one side of the top of the assembly block, a shovel mounted on the top of the second connecting post, and a shovel on one side of its bottom end. The loader is fixedly equipped with a slanted guide post, and a guide post is fixedly installed on one side of the top of the loader. A wear-resistant block is fixedly installed on one side of the assembly block. A mold groove is opened on one side of the top of the slider seat. The buffer assembly includes a first fixed plate and two connecting shells. A transition plate is provided at the bottom of the first fixed plate, and a second fixed plate is provided at the bottom of the transition plate. The two sides of the top of the second fixed plate are fixedly connected to the bottom of the two connecting shells respectively. A limit plate is fixedly installed at the top of each of the two connecting shells. A length rod penetrating the limit plate is slidably connected to the top of each of the two connecting shells. The tops of the two length rods are fixedly connected to the two sides of the bottom of the transition plate respectively.

[0011] Preferably, height shells are fixedly installed on both sides of the top of the transition plate, and movable frames are slidably connected to the tops of the two height shells. The tops of the two movable frames are respectively fixedly connected to both sides of the bottom of the first fixed plate. A push shell is fixedly installed in the middle of the bottom of the first fixed plate, and a screw is threadedly connected to the bottom of the push shell. The bottom of the screw is rotatably connected to the middle of the top of the transition plate, and a handle is fixedly installed at the connection between the screw and the transition plate. Connecting springs are fixedly installed at the bottom of the two length rods, and the bottoms of the two connecting springs are respectively fixedly connected to one side of the two length plates facing each other. Displacement grooves are formed on both sides of the inner walls of the two connecting shells. The interior of each sliding groove is equipped with displacement blocks. A length plate is fixedly installed between every two opposing displacement blocks. A spring shock absorber is fixedly installed at the bottom of each of the two length plates. The bottom of each spring shock absorber is fixedly connected to the bottom of the inner wall of each of the two connecting shells. The bottom of each of the two length rods is fixedly connected to the top of each of the two length plates. When the user turns the handle, the handle drives the screw to rotate. The thread on the surface of the screw matches the thread on the inner wall of the push shell. The push shell rotates and rises relative to the screw, and the movable frame slides relative to the height shell to adjust the distance between the first fixed plate and the transition plate. During the extrusion process, the spring shock absorber and the connecting spring buffer the extrusion force.

[0012] Preferably, one end of the first fixing plate is fixedly connected to the side of the slider insert facing the slider, and one side of the second fixing plate is fixedly connected to the side of the slider seat facing the slider. The buffer assembly is installed between the slider seat and the slider insert through the first fixing plate and the second fixing plate.

[0013] Preferably, the bottom end of the mold groove is fixedly connected to a cooling and temperature control pipe extending to the outside, and a wear-resistant block and cooling channel are fixedly installed on one side of the assembly block. The friction area is effectively cooled by the fluid cooling system to avoid material softening or insufficient lubrication due to excessive temperature, thereby reducing the wear of the slider. The wear-resistant block is made of low friction coefficient materials, such as copper alloy, nitrided steel, ceramic coating, etc., to reduce friction, improve the smoothness of slider movement, and extend the service life of the mold.

[0014] Preferably, support columns are fixedly installed at all four corners of the bottom of the mold base.

[0015] Preferably, the mold base is threaded with a limiting screw located on one side of the slider seat, and the user can tighten the limiting screw to limit the sliding distance of the slider seat.

[0016] Preferably, a cylinder base is fixedly installed on one side of the mold base, and a hydraulic cylinder is fixedly installed in the middle of the cylinder base. The movable end of the hydraulic cylinder is fixedly connected to the end of the slider insert that is directly opposite to it. The hydraulic cylinder performs telescopic movement and pushes the slider insert from one side. By precisely controlling the advance and retreat speed and pressure of the slider, the slider can smoothly enter and exit the insert, avoiding impact or uneven pressure caused by unstable movement.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By optimizing the fit and buffer design between the slider and the front mold insert, friction is reduced and the slider is made to move smoothly forward and backward, thereby improving injection molding accuracy;

[0019] 2. By setting wear-resistant blocks, using low-friction coefficient materials and surface hardening treatment, the wear resistance of the slider and front mold insert is improved, and the service life of the mold is extended;

[0020] 3. The arrangement of multiple connecting columns, assembly blocks, and pressure plates, through a multi-point guiding structure and self-lubricating system, improves the stability and lubrication effect of the slider, and reduces uneven wear and jamming.

[0021] 4. By setting up cooling and temperature control pipes, a cooling channel and temperature control system are designed in the contact area between the slider and the front mold insert to ensure the temperature of the mold is stable during operation and improve the working efficiency of the slider.

[0022] 5. By setting up hydraulic cylinders, the forward and backward speed of the slider is precisely controlled by pneumatic or hydraulic systems to ensure smooth slider movement and avoid uneven pressure affecting molding quality. Attached Figure Description

[0023] Figure 1 This is a side view of the present invention;

[0024] Figure 2 This is a cross-sectional view of the buffer assembly of this utility model;

[0025] Figure 3 This is a perspective view of the buffer component of this utility model;

[0026] Figure 4 This is a partial schematic diagram of the present invention.

[0027] In the diagram: 1. Mold base; 2. Support column; 3. Limiting screw; 4. Pressure plate; 5. Assembly block; 6. First connecting column; 7. Second connecting column; 8. Shovel; 9. Wear-resistant block; 10. Inclined guide column; 11. Guide column; 12. Slider seat; 13. Slider insert; 14. Hydraulic cylinder; 15. Cylinder base; 16. Buffer assembly; 1601. First fixing plate; 1602. Movable frame; 1603. Push shell; 1604. Height shell; 1605. Screw; 1606. Handle; 1607. Length rod; 1608. Limiting plate; 1609. Connecting shell; 1610. Second fixing plate; 1611. Spring shock absorber; 1612. Displacement groove; 1613. Displacement block; 1614. Length plate; 1615. Connecting spring; 1616. Transition plate; 17. Mold groove; 18. Cooling and temperature control pipe. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] Please see Figure 1-4 This utility model provides a mold structure for a front mold insert to be inserted into a slider, including a mold base 1, a slider seat 12 slidably connected to one side of the top of the mold base 1, a slider insert 13 engaged at the top of the slider seat 12, a buffer assembly 16 fixedly installed at the connection between the slider seat 12 and the slider insert 13, a pressure plate 4 fixedly installed on the other side of the top of the mold base 1, a first connecting post 6 fixedly installed on one side of the top of the pressure plate 4, an assembly block 5 installed on the top of the first connecting post 6, a second connecting post 7 fixedly installed on one side of the top of the assembly block 5, a scraper 8 installed on the top of the second connecting post 7, an inclined guide post 10 fixedly installed on one side of the bottom of the scraper 8, and a guide post 11 fixedly installed on one side of the top of the scraper 8. A wear-resistant block 9 is fixedly installed on one side of the assembly block 5. A mold groove 17 is opened on one side of the top of the slider seat 12. The buffer assembly 16 includes a first fixing plate 1601 and two connecting shells 1609. A transition plate 1616 is provided at the bottom of the first fixing plate 1601. A second fixing plate 1610 is provided at the bottom of the transition plate 1616. The two sides of the top of the second fixing plate 1610 are fixedly connected to the bottom of the two connecting shells 1609 respectively. A limit plate 1608 is fixedly installed at the top of each of the two connecting shells 1609. A length rod 1607 that penetrates the limit plate 1608 is slidably connected to the top of each of the two connecting shells 1609. The tops of the two length rods 1607 are fixedly connected to the two sides of the bottom of the transition plate 1616 respectively.

[0030] Height shells 1604 are fixedly installed on both sides of the top of the transition plate 1616. Movable frames 1602 are slidably connected to the tops of the two height shells 1604. The tops of the two movable frames 1602 are fixedly connected to both sides of the bottom of the first fixed plate 1601. A push shell 1603 is fixedly installed in the middle of the bottom of the first fixed plate 1601. A screw 1605 is threadedly connected to the bottom of the push shell 1603. The bottom of the screw 1605 is rotatably connected to the middle of the top of the transition plate 1616. A handle 1606 is fixedly installed at the connection between the screw 1605 and the transition plate 1616. Connecting springs 1615 are fixedly installed at the bottom of the two length rods 1607. The bottoms of the two connecting springs 1615 are fixedly connected to the opposite side of the two length plates 1614. Displacement grooves 1612 are formed on both sides of the inner wall of the two connecting shells 1609. The interiors of the four displacement grooves 1612 are slidably connected. There is a displacement block 1613, and a length plate 1614 is fixedly installed between every two opposing displacement blocks 1613. A spring damper 1611 is fixedly installed at the bottom end of each of the two length plates 1614. The bottom ends of the two spring dampers 1611 are fixedly connected to the bottom ends of the inner walls of the two connecting shells 1609 respectively. The bottom ends of the two length rods 1607 are fixedly connected to the top ends of the two length plates 1614 respectively. When the user turns the handle 1606, the handle 1606 drives the screw 1605 to rotate. The thread on the surface of the screw 1605 matches the thread on the inner wall of the push shell 1603. The push shell 1603 rotates and rises relative to the screw 1605, and the movable frame 1602 slides relative to the height shell 1604 to adjust the distance between the first fixed plate 1601 and the transition plate 1616. During the extrusion process, the spring damper 1611 and the connecting spring 1615 buffer the extrusion force.

[0031] One end of the first fixing plate 1601 is fixedly connected to the side of the slider insert 13 facing the first fixing plate 1601, and one side of the second fixing plate 1610 is fixedly connected to the side of the slider seat 12 facing the second fixing plate 1601. The buffer assembly 16 is installed between the slider seat 12 and the slider insert 13 through the first fixing plate 1601 and the second fixing plate 1610.

[0032] The bottom end of the mold groove 17 is fixedly connected to a cooling and temperature control pipe 18 extending to the outside. A wear-resistant block 9 is fixedly installed on one side of the assembly block 5. The cooling channel effectively cools the friction area through the fluid cooling system to avoid material softening or insufficient lubrication due to excessive temperature, thereby reducing the wear of the slider. The wear-resistant block 9 is made of low friction coefficient materials, such as copper alloy, nitrided steel, ceramic coating, etc., to reduce friction, improve the smoothness of slider movement, and extend the service life of the mold.

[0033] Support columns 2 are fixedly installed at the four corners of the bottom of the mold base 1.

[0034] The mold base 1 is threaded with a limiting screw 3 located on one side of the slider seat 12. The user can tighten the limiting screw 3 to limit the sliding distance of the slider seat 12.

[0035] A cylinder base 15 is fixedly installed on one side of the mold base 1, and a hydraulic cylinder 14 is fixedly installed in the middle of the cylinder base 15. The movable end of the hydraulic cylinder 14 is fixedly connected to the end of the slider insert 13 facing each other. The hydraulic cylinder 14 performs telescopic movement and pushes the slider insert 13 from one side. By precisely controlling the advance and retreat speed and pressure of the slider, the slider can smoothly enter and exit the insert, avoiding impact or uneven pressure caused by unstable movement.

[0036] In this embodiment, the hydraulic cylinder 14 performs a telescopic movement, pushing the slider insert 13 from one side. By precisely controlling the slider's forward and backward speed and pressure, the slider can smoothly enter and exit the insert, avoiding impacts or uneven pressure caused by unstable movement. A cooling channel effectively cools the friction area through a fluid cooling system, preventing material softening or insufficient lubrication due to excessive temperature, thereby reducing slider wear. The wear-resistant block 9 uses low-friction coefficient materials, such as copper alloys, nitrided steel, and ceramic coatings, to reduce friction. This improves the smoothness of the slider's advance and retreat, and extends the service life of the mold. When the user turns the handle 1606, the handle 1606 drives the screw 1605 to rotate. The threads on the surface of the screw 1605 match the threads on the inner wall of the push shell 1603. The push shell 1603 rotates and rises relative to the screw 1605, and the movable frame 1602 slides relative to the height shell 1604, adjusting the distance between the first fixed plate 1601 and the transition plate 1616. During the extrusion process, the spring damper 1611 and the connecting spring 1615 buffer the extrusion force.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mold structure for a front mold insert to be inserted into a slider, comprising a mold base (1), characterized in that: A slider seat (12) is slidably connected to one side of the top of the mold base (1). A slider insert (13) is engaged with the top of the slider seat (12). A buffer assembly (16) is fixedly installed at the connection between the slider seat (12) and the slider insert (13). A pressure plate (4) is fixedly installed on the other side of the top of the mold base (1). A first connecting column (6) is fixedly installed on one side of the top of the pressure plate (4). An assembly block (5) is installed on the top of the first connecting column (6). A second connecting column (7) is fixedly installed on one side of the top of the assembly block (5). A shovel (8) is installed on the top of the second connecting column (7). An inclined guide column (10) is fixedly installed on one side of the bottom of the shovel (8). A guide column (11) is fixedly installed on one side of the top of the shovel (8). A shovel (5) is fixedly installed on one side of the assembly block (5). The slide block (12) is equipped with a wear-resistant block (9). A mold groove (17) is opened on one side of the top of the slide block (12). The buffer assembly (16) includes a first fixing plate (1601) and two connecting shells (1609). The bottom end of the first fixing plate (1601) is provided with a transition plate (1616). The bottom end of the transition plate (1616) is provided with a second fixing plate (1610). The two sides of the top of the second fixing plate (1610) are fixedly connected to the bottom ends of the two connecting shells (1609). The top ends of the two connecting shells (1609) are fixedly installed with limit plates (1608). The top ends of the two connecting shells (1609) are slidably connected with a length rod (1607) that penetrates the limit plate (1608). The top ends of the two length rods (1607) are fixedly connected to the two sides of the bottom end of the transition plate (1616).

2. The mold structure according to claim 1, characterized in that: Height shells (1604) are fixedly installed on both sides of the top of the transition plate (1616). Movable frames (1602) are slidably connected to the tops of the two height shells (1604). The tops of the two movable frames (1602) are respectively fixedly connected to both sides of the bottom of the first fixed plate (1601). A push shell (1603) is fixedly installed in the middle of the bottom of the first fixed plate (1601). A screw (1605) is threadedly connected to the bottom of the push shell (1603). The bottom of the screw (1605) is rotatably connected to the middle of the top of the transition plate (1616). A handle (1606) is fixedly installed at the connection between the screw (1605) and the transition plate (1616). Connecting springs are fixedly installed at the bottoms of the two length rods (1607). The bottom ends of the two connecting springs (1615) are fixedly connected to the opposite side of the two length plates (1614). Displacement grooves (1612) are provided on both sides of the inner walls of the two connecting shells (1609). Displacement blocks (1613) are slidably connected inside the four displacement grooves (1612). A length plate (1614) is fixedly installed between every two opposite displacement blocks (1613). A spring damper (1611) is fixedly installed at the bottom end of the two length plates (1614). The bottom ends of the two spring dampers (1611) are fixedly connected to the bottom ends of the inner walls of the two connecting shells (1609). The bottom ends of the two length rods (1607) are fixedly connected to the top ends of the two length plates (1614).

3. The mold structure according to claim 1, characterized in that: One end of the first fixing plate (1601) is fixedly connected to the side of the slider insert (13) facing each other, and one side of the second fixing plate (1610) is fixedly connected to the side of the slider seat (12) facing each other.

4. The mold structure according to claim 1, characterized in that: The bottom end of the mold groove (17) is fixedly connected to a cooling and temperature control pipe (18) extending to the outside. A wear-resistant block (9) is fixedly installed on one side of the assembly block (5).

5. The mold structure according to claim 1, characterized in that: The mold base (1) has four fixed support columns (2) installed at the four corners of its bottom.

6. The mold structure according to claim 1, characterized in that: The mold base (1) is threaded with a limiting screw (3) located on one side of the slider seat (12).

7. The mold structure according to claim 1, characterized in that: A cylinder base (15) is fixedly installed on one side of the mold base (1), and a hydraulic cylinder (14) is fixedly installed in the middle of the cylinder base (15). The movable end of the hydraulic cylinder (14) is fixedly connected to the end of the slider insert (13) that is directly opposite to it.

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