Sliding block limiting structure of double-color thick-wall part mold

Abstract

The utility model discloses a sliding block limiting structure of a double-color thick-wall part mold. The sliding block limiting structure comprises a fixed mold frame, a movable mold frame, two sliding blocks arranged on the movable mold frame and limiting clamps matched with the two sliding blocks, a brake block is arranged on the fixed mold frame, a fixed block is transversely arranged between the two sliding blocks, and a sliding limiting block is arranged on the fixed block in the direction of the two sliding blocks in a sliding mode. A positioning bead is elastically arranged on the side wall of the sliding limiting block, and a plurality of limiting grooves for limiting the positioning bead are further formed in the fixed block; the brake block is close to the sliding limiting block during mold closing so that the sliding limiting block can transversely move towards one side, the positioning bead can be clamped into one limiting groove, and after the sliding limiting block is in place, one sliding block can be limited. The sliding block limiting mechanism is simple, small and exquisite, low in machining and manufacturing cost, and reliable and stable in sliding block limiting under the condition that normal injection molding production is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to car lamp thick wall spare mould technical field especially relates to a two -color thick wall spare mould sliding block limit structure. BACKGROUND

[0002] In the injection molding production field of car lamp, the large area optical pattern area of two -color thick wall spare side needs to be formed by the sliding block and is unlocked, and the design size is generally larger. Because the thick wall spare mould is compact in structure, the sliding block is generally designed with multiple limit clamps at the bottom to limit movement, and it is particularly important to ensure the stability of the sliding block during production.

[0003] In the actual production process, because the bottom limit surface of the two -color thick wall spare mould sliding block is long, the sliding block will horizontally shake and be out of limit during the rotating process of the moving die under the action of self -weight and centrifugal force, and the sliding block will collide with the sliding block when the mold is closed again, which seriously affects the injection molding production. Therefore, the unreliable limit of the two -color thick wall spare mould sliding block in the injection molding process has become a major problem, and the limit structure used in the prior art has too high cost, and is not suitable for the injection molding production of most small thick wall spare moulds, and cannot meet the production requirements of reliable sliding block limit. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that the prior art overcomes, provides a two -color thick wall spare mould sliding block limit structure, which is simple, small and low in processing and manufacturing cost, and can make the sliding block limit reliable and stable under the condition of ensuring normal injection molding production.

[0005] In order to solve the above technical problem, the technical scheme of the utility model is:

[0006] A two -color thick wall spare mould sliding block limit structure, which comprises a fixed mold frame, a movable mold frame, two sliding blocks arranged on the movable mold frame, and a limit clamp matched with the sliding blocks.

[0007] The fixed mold frame is provided with a brake block, and a fixed block is horizontally arranged between the two sliding blocks, and a sliding limit block is slidably arranged on the fixed block along the direction of the two sliding blocks.

[0008] The side wall of the sliding limit block is elastically provided with a positioning wave bead, and a plurality of limit grooves for limiting the positioning wave bead are formed in the fixed block.

[0009] The brake block is close to the sliding limit block during mold closing, so that the sliding limit block can move horizontally to one side, the positioning wave bead can be clamped into one of the limit grooves, and the sliding limit block can limit one of the sliding blocks after being in place.

[0010] Further, recesses are formed on one side of the two sliding blocks, and the sliding limit block can be clamped into the recess on one side to limit a single sliding block after horizontal movement.

[0011] Further, the brake block bottom is shaped as a V-shaped boss, and the sliding limiting block top is provided with a V-shaped inclined groove matched with the V-shaped boss.

[0012] Further, the fixed block is provided with a dovetail sliding groove, and the sliding limiting block is slidingly connected in the dovetail sliding groove, and the limiting groove is arranged on the side wall of the dovetail sliding groove.

[0013] Further, the sliding limiting block and the brake block are provided with two.

[0014] Further, the brake block is made of 2343ESR, the sliding limiting block is made of 718HH, the fixed block is made of P20, the positioning wave bead is made of SCM21, and the sliding block is made of 2343ESR.

[0015] By adopting the above technical scheme, the utility model has the following beneficial effects:

[0016] 1. The utility model discloses a fixed block and a sliding limiting block arranged between two sliding blocks on the fixed mold frame, the cooperation of the V-shaped boss at the brake block bottom and the V-shaped inclined groove on the sliding limiting block enables the sliding limiting block to transversely move to limit and stabilize the sliding block when clamping, thereby ensuring the safety during injection molding production. Meanwhile, the sliding limiting block can also stabilize the sliding block during the rotation of the movable mold, so that the sliding block does not shake and dislocate, and when clamping again, the brake block can transversely move to limit and stabilize the sliding limiting block on one side of the sliding block, so as to facilitate the cyclic injection molding production, and the sliding block on the other side can be released from the limitation to realize the tripping.

[0017] 2. The utility model discloses the design of the V-shaped boss at the brake block bottom and the V-shaped inclined groove on the sliding limiting block, so that when the brake block is close to the sliding block during clamping, the V-shaped boss and the V-shaped inclined groove can drive the sliding limiting block to transversely move to limit, and the sliding limiting block is not prone to being stuck and colliding. The contact between the two brake blocks and the two sliding limiting blocks can further ensure the smoothness and accuracy of the sliding, and prevent the risks of clamping, falling off and shaking.

[0018] 3. The utility model discloses the design of the elastic movable positioning wave bead and the limiting groove, which can ensure the accurate positioning of the sliding limiting block after the sliding limiting block is in place, and further ensure the limiting reliability of the sliding block.

[0019] 4. The utility model discloses simple and small, low in processing and manufacturing cost, and reliable and stable in the sliding block limiting under the condition of ensuring normal injection molding production, and meets the production requirements. DRAWINGS

[0020] Figure 1 It is a cross-sectional structure schematic view of the utility model embodiment.

[0021] Figure 2 is a top view schematic diagram of the embodiment of the utility model;

[0022] Figure 3 is a cooperation schematic diagram of the fixed block and the sliding limiting block of the embodiment of the utility model;

[0023] Figure 4 is a structure exploded schematic diagram of the sliding limiting block and the brake block of the embodiment of the utility model;

[0024] Figure 5 is a structure enlarged schematic diagram of the fixed block of the embodiment of the utility model;

[0025] Figure 6 is a structure principle schematic diagram under the clamping state of the embodiment of the utility model;

[0026] Figure 7 is a structure principle schematic diagram under the rotating state of the movable mold after the mold opening of the embodiment of the utility model;

[0027] Figure 8 is a structure principle schematic diagram under the clamping state of the embodiment of the utility model again;

[0028] Among them, 1. fixed mold frame;2. brake block;20. V-shaped boss;3. sliding limiting block;30. V-shaped chute;4. fixed block;40. dovetail sliding groove;41. limiting groove;5. movable mold frame;6. sliding block;60. groove;7. limiting clamp;8. positioning wave bead. DETAILED DESCRIPTION

[0029] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further detailed.

[0030] As Figures 1-5 Indicated in the embodiment, provide a kind of two-color thick-wall piece mold sliding block limiting structure, it is mainly by fixed mold frame 1, movable mold frame 5, two sliding blocks 6 and the limiting clamp 7 of cooperation such as component that are set on movable mold frame 5, two sliding blocks 6 are located in movable mold side, and the bottom of sliding block 6 is designed with two groups of limiting clamp 7, is limited by bottom groove cooperation. Two brake blocks 2 are fixed on fixed mold frame 1, fixed block 4 is horizontally arranged between two sliding blocks 6, fixed block 4 is fixed to movable mold frame 5, and the two sides of fixed block 4 cooperate with sliding block 6, two sliding blocks 6 are located in movable mold side, and two closely sliding limiting blocks 3 are arranged on fixed block 4 along the direction of two sliding blocks 6.

[0031] Specifically, the dovetail slide groove 40 is formed on the fixed block 4, and the two sliding limit blocks 3 are slidingly connected in the dovetail slide groove 40 and can move transversely along the direction of the two sliding blocks 6. Meanwhile, four equal-height limit grooves 41 are formed on the side wall of the dovetail slide groove 40 of the fixed block 4, and the four limit grooves 41 are divided into two groups, each group having two limit grooves 41, which can limit the sliding limit block 3 to different positions at both ends, respectively. In addition, the positioning wave beads 8 are elastically arranged on the side wall of each sliding limit block 3, and the limit groove 41 can limit the positioning wave beads 8 when the sliding limit block 3 is transversely moved to the position. Through the design of the elastically movable positioning wave beads 8 and the limit groove 41, the sliding of the sliding limit block 3 is not affected, and the sliding limit block 3 can be accurately positioned after being moved to the position, further ensuring the reliability of the limit of the sliding block 6. During operation, the sliding limit block 3 can be moved to the side when the clamp block 2 is close to the sliding limit block 3 during the mold closing, and the positioning wave beads 8 can be clamped into one of the limit grooves 41. The sliding limit block 3 can limit one of the sliding blocks 6 after being moved to the position, so that the sliding limit block 3 can be transversely moved to limit the sliding block 6 stably during the mold closing, ensuring the safety during the injection molding production.

[0032] At the same time, recesses 60 are formed on the side close to the two sliding blocks 6 in the embodiment, and the end surface of the sliding limit block 3 can be limited by the recess 60, that is, the sliding limit block 3 can be clamped into the recess 60 on one side after being transversely moved to limit the single sliding block 6. In addition, during the mold rotating process, the sliding limit block 3 can also stably hold the sliding block 6, so that the sliding block 6 cannot be shaken out of position, and when the mold is closed again, the sliding limit block 3 can be transversely moved by the clamp block 2 to limit the sliding block 6 on one side to be stable, so as to facilitate the cyclic injection molding production, and the sliding block 6 on the other side can be released from the limit to achieve the tripping.

[0033] In order to prevent the collision or jamming of the clamp block 2 and the sliding limit block 3 when the mold is closed again, the bottom of the clamp block 2 is shaped as a V-shaped boss 20 in the embodiment, and the top of the sliding limit block 3 is formed with a V-shaped inclined groove 30 matched with the V-shaped boss 20. Through the design of the V-shaped boss 20 at the bottom of the clamp block 2 and the V-shaped inclined groove 30 on the sliding limit block 3, when the clamp block 2 is close to the sliding block 6 during the mold closing, the V-shaped boss 20 and the V-shaped inclined groove 30 can be matched to drive the sliding limit block 3 to be transversely moved and limited, so that the jamming and collision are not easy to occur, and the contact between the two clamp blocks 2 and the two sliding limit blocks 3 can further ensure the stability and accuracy of the sliding, preventing the risk of jamming, falling off and shaking.

[0034] As for the material of each component, the material of the clamp block 2 can be 2343ESR, the material of the sliding limit block 3 can be 718HH, the material of the fixed block 4 can be P20, the material of the positioning wave bead 8 can be SCM21, the material of the end steel bead can also be SUJ2, and the material of the sliding block 6 can be 2343ESR.

[0035] In order to more clearly express the design point and principle of the embodiment, refer to Figures 1-8 The embodiment is mainly used in two-color mold injection, the movable mold side rotates, and the fixed mold side does not rotate, and in order to clearly illustrate, the suffix A represents one color, and the suffix B represents two colors. Figure 6 As shown in the figure, in the mold closing state, the positioning wave bead 8 is located at the right limiting groove 41, and the two-color sliding limiting block 3-B is not matched with the two-color sliding block 6-B side groove 60 for limiting, that is, the two-color sliding block 6-B is not limited and can normally retreat and be released in the mold opening, and the one-color sliding limiting block 3-A is matched with the one-color sliding block 6-A side groove 60 for limiting, that is, the one-color sliding block 6-A is limited and fixed and does not move in the mold opening. Figure 7 As shown in the figure, the one-color sliding block 6-A in the limiting state is rotated to the position of the original two-color sliding block 6-B, the original two-color sliding block 6-B is rotated to the position of the original one-color sliding block 6-A, and the combination of the sliding limiting block 3, the fixed block 4 and the positioning wave bead 8 is also rotated as a whole, and at this time, the positioning wave bead 8 is located at the left limiting groove 41. Figure 8 As shown in the figure, in the mold closing process, the two stop blocks 2 are matched with the V-shaped inclined grooves 30 on the sides of the two sliding limiting blocks 3 through the bottom V-shaped bosses 20, the two sliding limiting blocks 3 are pushed to the right along the dovetail sliding grooves 40 of the fixed block 4, the positioning wave bead 8 also enters the right limiting groove 41, at this time, the original one-color sliding block 6-A changes from the limiting state to the unlimited state, and after being released from the limiting, can be released, and the original two-color sliding block 6-B changes from the unlimited state to the limiting state, so as to realize the release in the next injection work, and the subsequent reciprocation can realize the continuous injection work.

[0036] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The above specific embodiments further illustrate the technical problems, technical solutions and beneficial effects solved by the present application, and it should be understood that the above description is only for specific embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A slider limiting structure for a two-color thick-walled part mold, characterized by: It comprises a fixed mold frame (1), a movable mold frame (5), two sliders (6) arranged on the movable mold frame (5), and a matching limit clamp (7); A brake block (2) is provided on the fixed mold frame (1), a fixed block (4) is transversely provided between the two sliders (6), and a sliding limit block (3) is provided on the fixed block (4) to slide along the direction of the two sliders (6); The side wall of the sliding limit block (3) is elastically provided with a positioning bead (8), and the fixed block (4) is also provided with a plurality of limiting grooves (41) for limiting the positioning bead (8); When the mold is closed, the brake block (2) is close to the sliding limit block (3) to enable the sliding limit block (3) to move horizontally to one side, and the positioning bead (8) can be inserted into one of the limit grooves (41). After the sliding limit block (3) is in place, it can limit one of the sliders (6).

2. The slider limiting structure of a two-color thick-walled part mold according to claim 1, characterized in that: A groove (60) is provided on the adjacent side of the two sliders (6), and the sliding limit block (3) can be inserted into the groove (60) on one side after horizontal movement to limit the single slider (6).

3. The slider limiting structure of a two-color thick-walled part mold according to claim 1, characterized in that: The bottom of the brake block (2) is formed into a V-shaped boss (20), and the top of the sliding limit block (3) is provided with a V-shaped inclined groove (30) adapted to the V-shaped boss (20).

4. The slider limiting structure of a two-color thick-walled part mold according to claim 1, characterized in that: The fixed block (4) is provided with a dovetail chute (40), the sliding limit block (3) is slidably engaged in the dovetail chute (40), and the limit groove (41) is provided on the side wall of the dovetail chute (40).

5. The slider limiting structure of a two-color thick-walled part mold according to claim 1, characterized in that: There are two sliding limit blocks (3) and two brake blocks (2).

6. The slider limiting structure of a two-color thick-walled part mold according to claim 1, characterized in that: The material of the brake block (2) is 2343ESR, the material of the sliding limit block (3) is 718HH, the material of the fixed block (4) is P20, the material of the positioning bead (8) is SCM21, and the material of the slider (6) is 2343ESR.

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