Die without parting line on end face of sliding block

Abstract

The utility model discloses a mould without parting line on the end surface of a sliding block in the field of moulds, which comprises a mould core, a sliding block component and a push plate arranged between the mould core and the sliding block component, the sliding block component is provided with a sliding block round core for forming a product, and the round core penetrates through the push plate and is arranged on the mould core; the mold further comprises a pull rod, one end of the pull rod penetrates through the sliding block assembly to be connected with the push plate, the other end of the pull rod extends out of the sliding block assembly by a first length, and the first length is the same as the effective length of the round core used for forming a product. The push plate is arranged between the mold core and the sliding block assembly, the push plate is connected with the pull rod, the pull rod extends out of the sliding block assembly by a first length, and when the mold is opened, the sliding block assembly moves and simultaneously drives the round core on the sliding block assembly to be pulled out of a product, and the push plate does not move at the moment, so that the movement of the round core is limited, and the product is prevented from being pulled due to movement.

Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to a mold with no parting line on the end face of the slider. Background Technology

[0002] The existing slider has an inner core that is directly pulled out of the product when it is removed. During the extraction process, the product has a clamping force that holds the inner core, causing the product to move together with the inner core. In addition, the product is at a certain temperature when the mold is opened and has high thermoplasticity. When the core is pulled out, the product will be pulled, resulting in uneven cross-section, burrs, step differences, and tearing on the inner side of the product. Utility Model Content

[0003] The purpose of this utility model is to provide a mold with no parting line on the slider end face. By setting a push plate between the slider assembly and the mold core, the push plate restricts the movement of the product when the round core on the slider assembly is pulled out of the product, thereby avoiding the product being pulled and damaged.

[0004] To solve the above technical problems, the following technical solution is adopted:

[0005] This utility model provides a slider end face without parting line mold, including mold core, slider assembly and push plate disposed between mold core and slider assembly, the slider assembly is provided with slider core for forming product, the core is disposed on the mold core through the push plate;

[0006] It also includes a pull rod, one end of which passes through the slider assembly and is connected to the push plate, and the other end of which extends out of the slider assembly by a first length, the first length being the same as the effective length of the core used to form the product.

[0007] Optionally, a limiting ring is provided at one end of the pull rod extending from the slider assembly, the limiting ring being used to limit the movement of the pull rod together with the slider assembly.

[0008] Optionally, the slider assembly includes a slider wear plate and a slider seat. The slider wear plate is mounted on the slider seat by a bolt assembly. The circular core is provided on one end face of the slider wear plate and passes through the slider seat and the push plate on the mold core.

[0009] Optionally, a plurality of opening and closing devices are provided between the push plate and the mold core. One end of the opening and closing device is locked on the side wall of the mold core, and the other end extends into the push plate. The opening and closing device is used to prevent the push plate from moving with the slider assembly.

[0010] Optionally, a plurality of guide rods are provided between the push plate and the mold core, and the guide rods are used to guide the push plate when it moves.

[0011] Optionally, a plurality of buffer components are provided between the push plate and the slider assembly. The buffer components include a positioning rod and a spring. The spring is sleeved on the positioning rod and is located inside the slider assembly.

[0012] Optionally, the cross-section of the product on the core contacts the side of the push plate.

[0013] Optionally, the push plate and the slider assembly are provided on both sides of the mold core.

[0014] Optionally, the slider assembly is provided with two circular cores, each of which is provided with a spiral water passage for the passage of coolant.

[0015] Optionally, the spiral water channel is provided with an outlet and an inlet at one end connected to the slider assembly. The two spiral water channels on the slider assembly are connected by a connecting water channel. The outlet of one spiral water channel is connected to one end of the connecting water channel, and the inlet is connected to the water inlet. The inlet of the other spiral water channel is connected to the other end of the connecting water channel, and the outlet is connected to the water outlet. Water pipes are connected to both the water inlet and the water outlet.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0017] 1. This utility model has a push plate in the mold core and the slider assembly. The push plate is connected to a pull rod. The pull rod extends from the slider assembly by a first length. When the mold is opened, the slider assembly moves and at the same time drives the round core on it to be pulled away from the product. At this time, the push plate does not move, thereby restricting the movement of the product and avoiding damage to the product. After the slider moves a distance of the first length, the round core is completely separated from the product. The slider assembly drives the pull rod and the push plate to move together, and the push plate is separated from the mold core.

[0018] 2. This utility model features a spiral water channel inside the circular core. This spiral water channel is used to cool the product after molding, increasing the cooling area and thus improving cooling efficiency. Two circular cores are mounted on a single slider, with interconnected water channels. Water is injected through one channel, flows through both channels, and is then discharged, further enhancing cooling efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the slider end face no parting line mold provided by this utility model;

[0020] Figure 2 This is one of the partial structural schematic diagrams of the slider end face without parting line mold provided by this utility model;

[0021] Figure 3 This is the second partial structural schematic diagram of the slider end face without parting line mold provided by this utility model;

[0022] Figure 4 This is the third partial structural schematic diagram of the slider end face without parting line mold provided by this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the circular core of the slider end face mold without parting line provided by this utility model;

[0024] Figure 6 This is a cross-sectional structural diagram of the slider end face without parting line mold provided by this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Mold core; 11. Male mold core; 12. Male mold plate; 2. Slider assembly; 21. Core; 22. Slider wear plate; 23. Slider seat; 3. Push plate; 31. Pull rod; 32. Opener / closer; 33. Guide rod; 34. Positioning rod; 35. Spring; 4. Spiral water channel; 41. Inlet; 42. Outlet; 5. Water inlet; 6. Water outlet; 7. Water pipe; 8. Connecting water channel; 9. Product; 10. Hydraulic cylinder; 101. T-shaped connecting block. Detailed Implementation

[0027] The technical solutions of the present invention 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 invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0029] like Figure 1 , Figure 2 As shown, this embodiment provides a mold without a parting line on the end face of the slider, including a mold core 1, a slider assembly 2, a push plate 3, and a pull rod 31. The push plate 3 is disposed between the mold core 1 and the slider assembly 2. The slider assembly 2 is provided with a round core 21 for forming a product 9. The round core 21 passes through the push plate 3 and is disposed on the mold core 1. One end of the pull rod 31 passes through the slider assembly 2 and is connected to the push plate 3. The other end of the pull rod 31 extends out of the slider assembly 2 by a first length, which is the same as the effective length of the round core 21 for forming the product 9. When the mold is opened, the round core 21 and the slider assembly 2 move together. When the round core 21 is completely separated from the product 9, the slider wear plate 22 drives the pull rod 31 to move together, thereby driving the push plate 3 to move.

[0030] The mold core 1 includes a male mold core 11, which is installed on a male mold plate 12. A round core 21 is set in the cavity of the male mold core 11. The injection molding material forms a product 9 in the gap between the cavity and the round core 21. The product 9 is located on the outer periphery of the round core 21.

[0031] The slider assembly 2 is connected to the T-shaped connecting block 101, and the T-shaped connecting block 101 is connected to the end of the telescopic rod of the hydraulic cylinder 10. The slider assembly 2 is driven to move by the hydraulic cylinder 10.

[0032] When the mold is opened, the round core 21 needs to be pulled out from the product 9. The slider assembly 2 is driven by the oil cylinder 10 to move away from the product 9, thereby moving the round core 21 to be pulled out from the product 9.

[0033] The mold provided in this embodiment is equipped with a push plate 3, which is located between the mold core 1 and the slider assembly 2. During the extraction of the product 9, the product 9 has a clamping force inside, which will clamp the round core 21. During the extraction of the round core 21, the product 9 will be limited by the push plate 3 and will not move with the round core 21, thus avoiding damage to the product 9. Example

[0034] This embodiment provides a mold with no parting line on the slider end face based on Embodiment 1:

[0035] like Figure 3 , Figure 4 As shown, the male mold core 11 is provided with four cavities for molding the product 9. Both sides of the male mold core 1 are provided with slider assemblies 2, and each slider assembly 2 is provided with two round cores 21.

[0036] The slider assembly 2 also includes a slider wear-resistant plate 22 and a slider seat 23. The slider wear-resistant plate 22 is embedded in the slider seat 23 and installed by a bolt assembly. One slider wear-resistant plate 22 has two parallel circular cores 21, which are mounted on one side of the slider wear-resistant plate 22 and pass through the slider seat 23 and the push plate 3, set on the cavity of the mold core 1. A T-shaped connecting block 101 is located in the middle of the slider seat 23 and is connected to a hydraulic cylinder 10. The hydraulic cylinder 10 drives the slider seat 23 to move, thereby causing the slider wear-resistant plate 22 and the circular cores 21 to move.

[0037] like Figure 4 , Figure 5 As shown, each of the circular cores 21 is provided with a spiral water channel 4. At the end where the circular core 21 connects to the wear-resistant plate 22 of the slider, there is an inlet 41 and an outlet 42 of the spiral water channel 4. The outlet 42 of the spiral water channel 4 on one circular core 21 is connected to the inlet 41 of the spiral water channel 4 on the other circular core 21 through a connecting water channel 8. The outlet 42 of the spiral water channel 4 on one circular core 21 is connected to one end of the connecting water channel 8, and the inlet 41 is connected to the inlet 5. The inlet 41 of the spiral water channel 4 on the other circular core 21 is connected to the other end of the connecting water channel 8, and the outlet 42 is connected to the outlet 6.

[0038] like Figure 2 , Figure 5As shown, both the inlet 5 and the outlet 6 are located on the slider seat 23 and are connected to water pipes 7. The coolant enters through the inlet 5, passes through the inlet 41 of the spiral water channel 4 on one core 21, enters the spiral water channel 4, and then enters the inlet 41 of the spiral water channel 4 on another core 21 through the connecting water channel 8 from the outlet 42 of the spiral water channel 4. It then exits from the outlet 42 of the spiral water channel 4 and finally exits from the outlet 6.

[0039] The outlet 42 and inlet 41 on the spiral water channel 4 are connected to the inlet 5 and outlet 6 through the internal water channel. The internal water channel starts from the inlet 41 or outlet 42, extends to the bottom of the slider wear plate 22 and enters the slider seat 23, and finally extends from the side of the slider seat 23 to form the inlet 5 or outlet 6.

[0040] The spiral water channel 4 is designed to increase the contact area between the coolant and the outer surface of the core 21 product 9, thereby improving the cooling efficiency.

[0041] The slider seat 23 has through holes on both sides for the pull rod 31 to pass through. The inner diameter of the through hole is larger than the outer diameter of the pull rod 31. The pull rod 31 can move relative to the through hole. One end of the pull rod 31 is fixed on the push plate 3, and the other end extends out of the through hole of the slider seat 23. The extension length is the same as the effective length of the core 21 for forming the product 9. A limiting ring is provided at the end of the pull rod 31 that extends out of the slider seat 23. The outer diameter of the limiting ring is larger than the inner diameter of the through hole. When the slider seat 23 moves to contact the limiting ring, it drives the pull rod 31 to move together. The pull rod 31 pulls the push plate 3 to move.

[0042] like Figure 3 , Figure 6 As shown, two opening and closing devices 32 are provided between the push plate 3 and the male mold core 11. The two opening and closing devices 32 are located on both sides of the push plate 3. One end of the opening and closing device 32 is inserted into the side wall of the male mold core 11, and the other end extends into the push plate 3. By setting the opening and closing device 32, the push plate 3 is prevented from following the movement of the slider wear plate 22 when it moves. Only after the slider wear plate 22 has moved the first length will the push plate 3 be moved by the pull rod 31.

[0043] A guide rod 33 is also provided between the push plate 3 and the male mold core 11. There are four guide rods 33, which are located at the four top corners of the side wall of the male mold core 11. One end of the guide rod 33 is fixed to the side wall of the male mold core 11, and the other end extends into the push plate 3 and is clearance-fitted with the push plate 3. The guide rod 33 is used to guide the push plate 3 when it is pulled by the pull rod 31, so as to prevent the push plate 3 from shifting.

[0044] like Figure 6As shown, a buffer is provided between the push plate 3 and the slider seat 23. The buffer includes a positioning rod 34 and a spring 35. One end of the positioning rod 34 extends into the push plate 3, and the other end extends into the slider seat 23. The end of the rod extending into the slider seat 23 is fitted with a spring 35. When the slider seat 23 is driven, the force of the spring 35 is used to resist the push plate 3, so that the push plate 3 resists the product 9, preventing the product 9 from being driven by the core 21 when the slider seat 23 moves.

[0045] When the cross-section of product 9 on mold core 1 contacts the push plate 3, the cross-section will not be damaged by the round core 21. When the wear-resistant plate 22 of the mold opening slider moves, after the round core 21 is separated from product 9, product 9 will be limited by the push plate 3 and will not move. The cross-section of product 9 will not have a parting line due to the pulling of the round core 21.

[0046] During use, in the mold closing process, the hydraulic cylinder 10 pushes the slider seat 23 to move closer to the product 9. The slider wear plate 22 and the round core 21 follow the movement of the slider seat 23. The pull rod 31 gradually extends from the slider seat 23. After one side of the slider seat 23 contacts the side of the push plate 3, as the slider seat 23 continues to move towards the product 9, the push plate 3 moves towards the product 9 together with the slider wear plate 22. When the other side of the push plate 3 contacts the side wall of the mold core 1, the mold is closed. At this time, the round core 21 is located in the cavity of the male mold core 11, and the pull rod 31 extends from the slider seat 23 by the first length. During the mold opening process, the hydraulic cylinder 10 pulls the slider seat 23 to move away from the product 9. The slider wear plate 22 and the round core 21 follow the movement of the slider seat 23. The push plate 3 remains stationary. One end of the pull rod 31 gradually approaches the through hole on the slider seat 23. After the slider wear plate 22 moves a certain distance, the end of the round core 21 disengages from the product 9. The limiting ring at the end of the pull rod 31 is located on the through hole of the slider seat 23, restricting the relative movement of the pull rod 31. After the slider seat 23 continues to be driven to move away from the product 9, the pull rod 31 follows the movement of the slider seat 23. The end of the pull rod 31 is fixed to the push plate 3. Therefore, the pull rod 31 will pull the push plate 3 to move in the opposite direction away from the product 9, thereby disengaging from the side of the mold core 1.

[0047] During mold opening, the instantaneous force is relatively large when the slider seat 23 is driven by the hydraulic cylinder 10. The spring 35 on the positioning rod 34 can first abut against the push plate 3. The spring 35 is used to buffer the instantaneous force of the slider seat 23 being driven, preventing the push plate 3 from being driven by the slider seat 23. The opening and closing device 32 between the push plate 3 and the male mold core 11 is used to connect the push plate 3 and the male mold core 11 during the process of the slider seat 23 being driven by the hydraulic cylinder 10. The push plate 3 abuts against the product 9 to prevent the push plate 3 from moving and to prevent the product 9 from shifting.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A mold with no parting line on the slider end face, characterized in that, The device includes a mold core, a slider assembly, and a push plate disposed between the mold core and the slider assembly. The slider assembly is provided with a slider core for molding the product, and the core passes through the push plate and is disposed on the mold core. It also includes a pull rod, one end of which passes through the slider assembly and is connected to the push plate, and the other end of which extends out of the slider assembly by a first length, the first length being the same as the effective length of the core used to form the product.

2. The slider end face without parting line mold according to claim 1, characterized in that, The end of the pull rod extending from the slider assembly is provided with a limiting ring, which is used to limit the movement of the pull rod and the slider assembly together.

3. The slider end face without parting line mold according to claim 1, characterized in that, The slider assembly includes a slider wear plate and a slider seat. The slider wear plate is mounted on the slider seat by a bolt assembly. A circular core is provided on one end face of the slider wear plate. The circular core passes through the slider seat and the push plate and is disposed on the mold core.

4. The slider end face without parting line mold according to claim 1, characterized in that, A plurality of opening and closing devices are provided between the push plate and the mold core. One end of the opening and closing device is stuck on the side wall of the mold core, and the other end extends into the push plate. The opening and closing device is used to prevent the push plate from moving with the slider assembly.

5. The slider end face without parting line mold according to claim 1, characterized in that, A plurality of guide rods are provided between the push plate and the mold core, and the guide rods are used to guide the push plate when it moves.

6. The slider end face without parting line mold according to claim 1, characterized in that, Several buffer components are provided between the push plate and the slider assembly. Each buffer component includes a positioning rod and a spring. The spring is sleeved on the positioning rod and is located inside the slider assembly.

7. The slider end face without parting line mold according to claim 1, characterized in that, The cross-section of the product on the core is in contact with the side of the push plate.

8. The slider end face without parting line mold according to claim 1, characterized in that, The push plate and the slider assembly are provided on both sides of the mold core.

9. The slider end face without parting line mold according to claim 1, characterized in that, The slider assembly is provided with two circular cores, and each circular core is provided with a spiral water channel for passing coolant.

10. The slider end face without parting line mold according to claim 9, characterized in that, The spiral water channel is connected to the slider assembly at one end and has an outlet and an inlet. The two spiral water channels on the slider assembly are connected by a connecting water channel. The outlet of one spiral water channel is connected to one end of the connecting water channel and the inlet is connected to the water inlet. The inlet of the other spiral water channel is connected to the other end of the connecting water channel and the outlet is connected to the water outlet. Water pipes are connected to both the water inlet and the water outlet.

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