Novel wedge mechanism

Abstract

The utility model relates to the technical field of dies, in particular to a novel wedge mechanism which is installed on a die, the novel wedge mechanism comprises a shovel base, a sliding block, an elastic piece and a first abrasion-resistant block, and the die comprises an upper die base and a lower die base. The shovel base is installed at the bottom of the upper die base. The sliding block is connected to the top of the lower die base in a sliding mode and corresponds to the shovel base in position. The first wear-resisting block is arranged below the sliding block and fixedly connected with the lower die base, and the sliding block is in contact with the first wear-resisting block in an attached mode; a fixing block is arranged on the outer side of the sliding block and fixedly connected with the lower die base, the elastic piece is located above the sliding block, one end of the elastic piece is connected with the fixing block, and the other end of the elastic piece is connected with the sliding block. The inclined wedge mechanism solves the problem that when the space of an existing inclined wedge mechanism is insufficient, only an oil cylinder can be adopted to drive a sliding block, and consequently the production cost is too high.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a novel inclined wedge mechanism. Background Art

[0002] The wedge mechanism is a mechanical mechanism that converts vertical motion into horizontal motion or tilting motion by using a wedge and a slider in combination. It is an important structure in the mold to assist product molding.

[0003] See also Figure 1 , is an existing inclined wedge mechanism, including a shovel base 100 arranged on the upper die seat, a slider 200 and a reset spring 400 arranged on the lower die seat, wherein the slider 200 is slidably connected to the lower die seat, and the reset spring 400 is usually arranged below the slider and fixedly connected to the lower die seat, and its output end is connected to the slider 200. When the mold is closed, the slider 200 is squeezed by the shovel base 100, so that the slider 200 overcomes the elastic force of the reset spring 400, thereby moving. When the mold is opened, the shovel base 100 is away from the slider 200, and the slider 200 is reset under the action of the reset spring 400. This structure can usually realize the side end structure molding of the product in the mold; in actual application, in order to increase the service life of the slider 200, it is necessary to set the first wear-resistant block 400 thereunder to reduce the friction loss of the slider 200. Since the reset spring 300 and the first wear-resistant block 400 are both located below the slider 200, in some molds with compact structures and small slider structures, there will be insufficient installation space for the reset spring 300. When this happens, the reset spring 300 is usually discarded and an external oil cylinder is used to drive the slider 200, which greatly increases the cost.

[0004] Therefore, it is necessary to provide a technical solution to solve the above problems. Utility Model Content

[0005] The utility model provides a novel inclined wedge mechanism, aiming to solve the problem that the existing inclined wedge mechanism can only use an oil cylinder to drive a sliding block when the space is insufficient, resulting in excessively high production costs.

[0006] To achieve the above object, the utility model provides a new type of inclined wedge mechanism, which is installed on the mold, the new type of inclined wedge mechanism includes a shovel base, a slider, an elastic member and a first wear-resistant block, and the mold includes an upper mold base and a lower mold base; wherein:

[0007] The shovel base is installed at the bottom of the upper die seat;

[0008] The slider is slidably connected to the top of the lower die base and corresponds to the position of the shovel base; the first wear-resistant block is arranged below the slider and fixedly connected to the lower die base, and the slider is in contact with the first wear-resistant block; a fixed block is provided on the outer side of the slider, and the fixed block is fixedly connected to the lower die base; the elastic member is located above the slider, one end of which is connected to the fixed block, and the other end is connected to the slider.

[0009] More specifically, a first inclined surface is provided at the bottom of the shovel base, and a second inclined surface matching the first inclined surface is provided at the top of the sliding block; a second wear-resistant block is provided at the bottom of the first inclined surface.

[0010] More specifically, a protrusion is provided on the top of the sliding block, the second inclined surface is provided on the protrusion, and the output end of the elastic member is fixedly connected to the protrusion.

[0011] More specifically, the elastic member includes a nitrogen return spring, a receiving groove is provided inside the fixing block, and the nitrogen return spring is arranged in the receiving groove.

[0012] More specifically, a through groove is provided in the middle of the fixed block, and the sliding block is arranged in the through groove, and its top surface and two side surfaces are in contact with the groove wall of the through groove; the sliding block is provided with a lubrication groove at a position corresponding to the fixed block and / or the fixed block is provided with a lubrication groove at a position corresponding to the sliding block.

[0013] More specifically, limiting pressure blocks are respectively provided on both sides of the slider, and the two limiting pressure blocks are fixedly connected to the lower die base, and the top surface and two side surfaces of the slider are in contact with the corresponding limiting pressure blocks.

[0014] More specifically, the limiting pressing block is made of a mixed material of copper and graphite.

[0015] More specifically, a slot adapted to the shovel base is provided on the upper die seat, and the shovel base is inserted into the slot.

[0016] More specifically, a positioning block is provided in the middle of the slot, and a positioning groove matched with the positioning block is opened in the middle of the shovel base. When the shovel base is inserted into the slot, the positioning block is placed in the positioning groove.

[0017] The technical effects of a novel wedge mechanism involved in the utility model are:

[0018] The present application sets the elastic part above the slider so that the connection position of the elastic part and the slider and the connection position of the first wear-resistant block and the slider are staggered, thereby reducing the space required to be reserved at the bottom of the slider. In this way, when the structure of the mold is compact and the structure of the slider needs to be smaller, it will not affect the setting of the elastic part, and there is no need to use a cylinder to drive the slider, so that the production cost and the use cost of the mold are reduced. In addition, using the design of the present application, the elastic part can also be easily disassembled and removed, which improves the convenience of maintenance and replacement of the elastic part. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an existing inclined wedge mechanism;

[0020] Figure 2 It is a structural schematic diagram of a first implementation scheme of a novel inclined wedge mechanism involved in the utility model;

[0021] Figure 3 It is a cross-sectional schematic diagram of a first implementation scheme of a novel inclined wedge mechanism involved in the utility model;

[0022] Figure 4 It is a structural schematic diagram of a first implementation scheme of a novel inclined wedge mechanism involved in the utility model in a mold closing state;

[0023] Figure 5 It is a structural schematic diagram of a second implementation scheme of a novel inclined wedge mechanism involved in the utility model;

[0024] Figure 6 This is a structural exploded view of a second implementation scheme of a novel inclined wedge mechanism involved in the utility model.

[0025] Markings in the figure:

[0026] 1. Shovel base; 2. Sliding block; 21. Protruding portion; 22. Lubrication groove; 3. Elastic member; 4. First wear-resistant block; 5. Upper die seat; 51. Positioning block; 6. Lower die seat; 7. Second wear-resistant block; 8. Limiting pressure block; 9. Fixed block; 91. Through groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element at the same time; when an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the embodiments of the present invention, it should be understood that the directions or positional relationships indicated by “up”, “down”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside”, etc., are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] In order to more clearly illustrate the technical solution of the utility model, a preferred embodiment is provided below. Figure 1 to Figure 6 A new type of wedge mechanism is installed on a mold. The new type of wedge mechanism includes a shovel base 1, a slider 2, an elastic member 3 and a first wear-resistant block 4. The mold includes an upper mold base 5 and a lower mold base 6; wherein:

[0032] The shovel base 1 is installed at the bottom of the upper die base 5;

[0033] The slider 2 is slidably connected to the top of the lower die seat 6 and corresponds to the position of the shovel base 1; the first wear-resistant block 4 is arranged below the slider 2 and fixedly connected to the lower die seat 6, and the slider 2 is in contact with the first wear-resistant block 4; a fixed block 9 is provided on the outer side of the slider 2, and the fixed block 9 is fixedly connected to the lower die seat 6. The elastic member 3 is located above the slider 2, one end of which is connected to the fixed block 9, and the other end is connected to the slider 2.

[0034] Compared with the prior art, the new type of inclined wedge mechanism involved in the utility model is different in that the elastic member 3 is arranged above the slider 2 in the utility model so that the connection position between the elastic member 3 and the slider 2 and the connection position between the first wear-resistant block 4 and the slider 2 are staggered, thereby reducing the space required to be reserved at the bottom of the slider 2. In this way, when the structure of the mold is compact and the structure of the slider 2 needs to be set smaller, the setting of the elastic member 3 is not affected, and there is no need to switch to the oil cylinder to drive the slider 2, so that the production cost and the use cost of the mold are reduced; in addition, by adopting the design of the utility model, the elastic member 3 can also be easily disassembled and removed, which improves the convenience of maintenance and replacement of the elastic member 3.

[0035] In this embodiment, the bottom of the shovel base 1 is provided with a first inclined surface, the top of the slider 2 is provided with a second inclined surface matched with the first inclined surface; the bottom of the first inclined surface is provided with a second wear-resistant block 7. It should be understood that when the shovel base 1 moves downward, the shovel base 1 drives the slider 2 to move horizontally through the cooperation of the first inclined surface and the second inclined surface, and the design of the second wear-resistant block 7 can reduce the friction loss of the slider 2 and increase the service life of the slider 2.

[0036] In this embodiment, a protrusion 21 is provided on the top of the slider 2, the second inclined surface is provided on the protrusion 21, and the output end of the elastic member 3 is fixedly connected to the protrusion 21. Figure 1 In the existing inclined wedge mechanism, the contact position between the shovel base and the slider and the position of the reset spring are staggered up and down, resulting in the force directions of the two not being in the same plane (the arrow direction is the force direction), and the reset spring is susceptible to greater additional friction, resulting in a reduced service life of the reset spring. Figure 4 , which is the design of the present application, wherein the shovel base 1 applies force to the protrusion 21, and the elastic member 3 also applies force to the protrusion 21, and the directions of the forces applied by the two are located in the same plane (the arrow is the direction of force), so that the friction force on the elastic member 3 is reduced, thereby increasing the service life of the elastic member 3.

[0037] In this embodiment, the elastic member 3 includes a nitrogen return spring, and a receiving groove is provided inside the fixed block 9, and the nitrogen return spring is arranged in the receiving groove. With the above design, the nitrogen return spring is accommodated in the fixed block 9 as a whole, making it less susceptible to bumps and improving its service life.

[0038] In this embodiment, a limiting structure for limiting the upward movement of the slider 2 is arranged above the slider 2 .

[0039] As a preferred solution of this embodiment, limit pressure blocks 8 are respectively provided on both sides of the slider 2, and the two limit pressure blocks 8 are fixedly connected to the lower die seat 6, and the top surface and two side surfaces of the slider 2 are in contact with the corresponding limit pressure blocks 8. Preferably, the limit pressure blocks 8 are made of a mixed material of copper and graphite. In practical applications, the limit pressure blocks 8 are used as a limit structure to limit the upward movement of the slider 2, and the surface flatness of the limit pressure blocks 8 is relatively high. When matched with the slider 2, the friction loss generated by the slider 2 is very small, which is conducive to the long-term use of the slider 2.

[0040] As another preferred solution, a through groove 91 is provided in the middle of the fixed block 9, and the slider 2 is provided in the through groove 91, and its top surface and two side surfaces are in contact with the groove wall of the through groove 91; the slider 2 is provided with a lubrication groove 22 at a position corresponding to the fixed block 9 and / or the fixed block 9 is provided with a lubrication groove 22 at a position corresponding to the slider 2. In practical applications, the fixed block 9 is used as a limit structure to limit the upward movement of the slider 2, and because the material used for the fixed block 9 causes its surface to be relatively rough, therefore, a lubrication groove 22 that can be filled with lubricating oil needs to be provided to reduce the friction between the slider 2 and the fixed block 9.

[0041] It should be understood that the solution of adding the limiting pressure block 8 as the limiting structure is low in cost and does not require frequent replenishment of lubricating oil, but it will increase the space required above the slider 2; while the solution of using the fixed block 9 as the limiting structure can effectively reduce the space required above the slider 2, but it is necessary to replenish lubricating oil to ensure that the slider 2 and the fixed block 9 maintain a low friction state. Therefore, the two solutions have their own advantages, and the specific choice can be made by those skilled in the art according to the usage.

[0042] In this embodiment, a slot matching the shovel base 1 is provided on the upper die seat 5, and the shovel base 1 is inserted into the slot. With the above design, the end of the shovel base 1 is limited by the slot wall, thereby improving the overall stability of the shovel base 1.

[0043] Furthermore, a positioning block 51 is provided in the middle of the slot, and a positioning groove matching the positioning block 51 is provided in the middle of the shovel base 1. When the shovel base 1 is inserted into the slot, the positioning block 51 is placed in the positioning groove. The above design improves the position accuracy of the shovel base 1, so that the shovel base 1 can accurately drive the slider 2 to move.

[0044] The above description is only a preferred embodiment of the present invention, and its structure is not limited to the shapes listed above. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel wedge mechanism is installed on a mold, the novel wedge mechanism comprises a shovel base, a slider, an elastic member and a first wear-resistant block, the mold comprises an upper mold base and a lower mold base, and is characterized in that: The shovel base is installed at the bottom of the upper die seat; The slider is slidably connected to the top of the lower die base and corresponds to the position of the shovel base; the first wear-resistant block is arranged below the slider and fixedly connected to the lower die base, and the slider is in contact with the first wear-resistant block; a fixed block is provided on the outer side of the slider, and the fixed block is fixedly connected to the lower die base; the elastic member is located above the slider, one end of which is connected to the fixed block, and the other end is connected to the slider.

2. According to claim 1, a novel wedge mechanism is characterized in that: The bottom of the shovel base is provided with a first inclined surface, and the top of the sliding block is provided with a second inclined surface matched with the first inclined surface; the bottom of the first inclined surface is provided with a second wear-resistant block.

3. According to claim 2, a novel wedge mechanism is characterized in that: A protrusion is provided on the top of the sliding block, the second inclined surface is arranged on the protrusion, and the output end of the elastic member is fixedly connected to the protrusion.

4. According to claim 1, a novel angled wedge mechanism is characterized in that: The elastic member comprises a nitrogen return spring, a receiving groove is provided inside the fixing block, and the nitrogen return spring is arranged in the receiving groove.

5. According to claim 1, the novel wedge mechanism is characterized in that: A through groove is provided in the middle of the fixed block, and the sliding block is arranged in the through groove, and its top surface and two side surfaces are in contact with the groove wall of the through groove; the sliding block is provided with a lubrication groove at a position corresponding to the fixed block and / or the fixed block is provided with a lubrication groove at a position corresponding to the sliding block.

6. According to claim 1, the novel wedge mechanism is characterized in that: Limiting pressure blocks are respectively arranged on both sides of the sliding block, and two limiting pressure blocks are fixedly connected to the lower die seat, and the top surface and two side surfaces of the sliding block are in contact with the corresponding limiting pressure blocks.

7. A novel wedge mechanism according to claim 6, characterized in that: The limiting pressing block is made of a mixed material of copper and graphite.

8. According to claim 1, the novel wedge mechanism is characterized in that: The upper die seat is provided with a slot adapted to the shovel base, and the shovel base is inserted into the slot.

9. A novel wedge mechanism according to claim 8, characterized in that: A positioning block is arranged in the middle of the slot, and a positioning groove matched with the positioning block is opened in the middle of the shovel base. When the shovel base is inserted into the slot, the positioning block is placed in the positioning groove.

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