Injection mold for adjusting worm lengthening shaft

Abstract

The utility model discloses an injection mold for adjusting a worm lengthening shaft, which comprises a fixed mold assembly, and the fixed mold assembly comprises a fixed mold seat plate, a first fixed mold plate fixedly connected to the bottom of the fixed mold seat plate, and a second fixed mold plate fixed at the bottom of the first fixed mold plate; a positioning ring is arranged at the central position of the fixed mold seat plate; a glue inlet pipe corresponding to the positioning ring is arranged in the fixed mold seat plate and the first fixed mold plate; a plurality of glue passing grooves which are communicated with one another are formed in the surface of the second fixed mold plate, and first pouring channels which penetrate through the second fixed mold plate are formed in the end parts of the glue passing grooves; according to the utility model, the movable mold forming block is inserted into the positioning block, and the positioning block is fixed with the movable mold plate through the pressing block, so that the movable mold forming block can be prevented from sliding; accurate positioning of the movable mold cavity and the fixed mold cavity is achieved, and therefore the injection molding precision can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an injection mold for adjusting a worm extension shaft. Background Art

[0002] The function of the adjusting worm extension shaft is to adjust the limit height of the motor. Usually, an injection mold is required for the production of the adjusting worm extension shaft. Due to the influence of the installation accuracy of the dynamic model cavity and the fixed model cavity, the existing injection mold has a low precision of the adjusted worm extension shaft and the edges are prone to burrs, which cannot meet the production requirements of the adjusting worm extension shaft.

[0003] Based on the above situation, the utility model proposes an injection mold for adjusting the worm extension shaft, which can effectively solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an injection mold for adjusting the worm extension shaft. The utility model provides an injection mold for adjusting the worm extension shaft, by inserting the movable mold forming block into the positioning block, the positioning block is fixed to the movable mold plate through the pressing block, so as to prevent the movable mold forming block from slipping, realize accurate positioning of the movable mold cavity and the fixed mold cavity, avoid the problem of peaking on the injection molded part, and thus improve the injection molding accuracy.

[0005] The utility model is realized by the following technical solutions:

[0006] An injection mold for adjusting a worm extension shaft, comprising:

[0007] A fixed mold assembly, the fixed mold assembly includes a fixed mold base plate, a first fixed mold plate fixedly connected to the bottom of the fixed mold base plate, and a second fixed mold plate fixed to the bottom of the first fixed mold plate; a positioning ring is provided at the center of the fixed mold base plate, and a glue inlet pipe corresponding to the positioning ring is provided inside the fixed mold base plate and the first fixed mold plate; a plurality of mutually connected glue grooves are provided on the surface of the second fixed mold plate, and a first pouring channel penetrating the second fixed mold plate is provided at the end of the glue groove; a fixed mold core is fixedly connected to the inside of the second fixed mold plate, a fixed mold forming block is installed in the fixed mold core, and a plurality of fixed mold cavities are provided on the fixed mold forming block, and a second pouring channel interconnected with the first pouring channel is provided on the top of the fixed mold core, and the fixed mold cavity is arranged directly below the second pouring channel;

[0008] A movable mold assembly, the movable mold assembly includes a movable mold base plate, fixed blocks fixedly connected to both sides of the movable mold base plate, and a movable mold plate fixedly connected to the fixed blocks, the two fixed blocks and the movable mold base plate and the movable mold plate together enclose a receiving space, and an ejection mechanism is arranged in the receiving space; the top of the movable mold plate is fixedly connected to the movable mold core; the middle of the movable mold core is fixedly connected to a horizontally arranged protrusion, and the surface of the protrusion is provided with a plurality of hexagonal protrusions; movable mold forming blocks are respectively arranged on both sides of the protrusion, the outer side of the movable mold forming block is inserted into the groove of the positioning block, and the two sides of the positioning block are respectively provided with pressure blocks for pressing the positioning block, and the pressure blocks are fixedly connected to the movable mold plate; the inner side walls of the two movable mold forming blocks abut against each other and enclose and form a plurality of movable mold cavities, and the hexagonal protrusions are arranged in the movable mold cavities.

[0009] According to the above technical solution, as a further preferred technical solution of the above technical solution, the ejection mechanism includes an ejector push plate arranged on the movable mold base plate, a push plate fixing plate fixedly connected above the ejector push plate, and an ejector penetrating the push plate fixing plate and arranged toward the fixed mold assembly, and the ejector is fixedly connected to the ejector push plate.

[0010] According to the above technical solution, as a further preferred technical solution of the above technical solution, the ejection mechanism also includes a buffer unit, and the buffer unit includes a buffer rod and a spring sleeved on the buffer rod. There are four buffer rods and springs, which are evenly distributed on the four corners of the push plate fixing plate.

[0011] According to the above technical scheme, as a further preferred technical scheme of the above technical scheme, the four corners of the fixed mold base plate are respectively fixedly connected with guide columns that sequentially penetrate the fixed mold base plate, the first fixed mold plate, the second fixed mold plate and the movable mold plate, and the bottom of the guide column is inserted into the interior of the fixed block; the first fixed mold plate is fixedly connected with a first guide sleeve that cooperates with the guide column, the second fixed mold plate is fixedly connected with a second guide sleeve that cooperates with the guide column, and the movable mold plate is fixedly connected with a third guide sleeve that cooperates with the guide column.

[0012] According to the above technical solution, as a further preferred technical solution of the above technical solution, fixing components are respectively arranged around the second fixed template and the movable template, and the upper and lower sides of the fixing components are respectively fixed to the second fixed template and the movable template by fasteners.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0014] The utility model provides an injection mold for adjusting a worm extension shaft. The movable mold forming block is inserted into a positioning block. The positioning block is fixed to the movable mold plate through a pressing block, thereby preventing the movable mold forming block from slipping, achieving precise positioning of the movable mold cavity and the fixed mold cavity, avoiding problems such as peaking on the injection molded part, and thus improving the injection molding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the second fixed template of the utility model;

[0018] Figure 4 It is a schematic diagram of the assembly structure of the fixed mold core and the fixed mold forming block of the utility model;

[0019] Figure 5 This is a schematic diagram of the dynamic model cavity structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the movable mold core of the utility model;

[0021] Figure 7 It is a schematic diagram of the assembly structure of the movable mold forming block and the positioning block of the utility model. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0023] An injection mold for adjusting a worm extension shaft, comprising:

[0024] A fixed mold assembly, the fixed mold assembly includes a fixed mold base plate 1, a first fixed mold plate 2 fixedly connected to the bottom of the fixed mold base plate 1, and a second fixed mold plate 3 fixed to the bottom of the first fixed mold plate 2; a positioning ring 4 is provided at the center of the fixed mold base plate 1, and a glue inlet pipe 5 corresponding to the positioning ring 4 is arranged inside the fixed mold base plate 1 and the first fixed mold plate 2; a plurality of mutually connected glue grooves 6 are provided on the surface of the second fixed mold plate 3, and a first pouring channel 7 penetrating the second fixed mold plate 3 is provided at the end of the glue groove 6; a fixed mold core 8 is fixedly connected to the inside of the second fixed mold plate 3, a fixed mold forming block 9 is installed in the fixed mold core 8, and a plurality of fixed mold cavities 10 are provided in the fixed mold forming block 9, and a second pouring channel 11 interconnected with the first pouring channel 7 is provided on the top of the fixed mold core 8, and the fixed mold cavity 10 is arranged directly below the second pouring channel 11;

[0025] A movable mold assembly, the movable mold assembly includes a movable mold base plate 12, fixed blocks 13 fixedly connected to both sides of the movable mold base plate 12, and a movable mold plate 14 fixedly connected to the fixed blocks 13, the two fixed blocks 13 and the movable mold base plate 12 and the movable mold plate 14 are jointly enclosed to form a receiving space, and an ejection mechanism is arranged in the receiving space; a movable mold core 15 is fixedly connected to the top of the movable mold plate 14; a horizontally arranged protrusion 16 is fixedly connected to the middle of the movable mold core 15, and a plurality of hexagonal protrusions 17 are arranged on the surface of the protrusion 16; movable mold forming blocks 18 are respectively arranged on both sides of the protrusion 16, the outer side of the movable mold forming block 18 is inserted into the groove of the positioning block 19, and the two sides of the positioning block 19 are respectively provided with a pressing block 20 for pressing the positioning block 19, and the pressing block 20 is fixedly connected to the movable mold plate 14; the inner side walls of the two movable mold forming blocks 18 abut against each other and enclose and form a plurality of movable mold cavities 21, and the hexagonal protrusions 17 are arranged in the movable mold cavities 21.

[0026] Furthermore, in another embodiment, the ejection mechanism includes an ejector push plate 22 disposed on the movable mold base plate 12, a push plate fixing plate 23 fixedly connected above the ejector push plate 22, and an ejector 24 penetrating the push plate fixing plate 23 and disposed toward the fixed mold assembly, wherein the ejector 24 is fixedly connected to the ejector push plate 22. By providing the ejection mechanism, after the mold is opened, the adjustment worm extension shaft in the movable mold cavity 21 can be ejected from the movable mold core 11, thereby overcoming the defect of difficult demoulding.

[0027] Furthermore, in another embodiment, the ejection mechanism further includes a buffer unit, which includes a buffer rod 25 and a spring 26 sleeved on the buffer rod 25. Four buffer rods 25 and four springs 26 are provided, and are evenly distributed on the four corners of the push plate fixing plate 23. With the arrangement of the buffer rod 25 and the spring 26, when the mold is closed, the bottom of the movable plate 14 will press the spring 26 downward, and the buffer rod 25 will extend into the interior of the movable plate 14. The elastic force of the spring 26 will reduce the pressure on the movable plate 14, thereby extending the service life.

[0028] Further, in another embodiment, the four corners of the fixed mold base plate 1 are respectively fixedly connected with guide posts 27 that penetrate the fixed mold base plate 1, the first fixed mold plate 2, the second fixed mold plate 3 and the movable mold plate 14 in sequence, and the bottom of the guide posts 27 is inserted into the interior of the fixed block 13; the first fixed mold plate 2 is fixedly connected with a first guide sleeve 28 that cooperates with the guide posts 27, the second fixed mold plate 3 is fixedly connected with a second guide sleeve 29 that cooperates with the guide posts 27, and the movable mold plate 14 is fixedly connected with a third guide sleeve 30 that cooperates with the guide posts 27. When the mold is opened, the guide posts 27 are separated from the third guide sleeve 30 in the movable mold plate 14, and the movable mold assembly is away from the fixed mold assembly. When the mold is closed, the guide posts 27 penetrate into the third guide sleeve 30 of the movable mold plate 14, providing a guiding effect. The provision of the first guide sleeve 28 and the second guide sleeve 29 provides a guiding effect for the disassembly and assembly of the guide posts 27 when the movable mold assembly is disassembled.

[0029] Further, in another embodiment, the second fixed mold plate 3 and the movable mold plate 14 are respectively provided with fixing components 31, and the upper and lower sides of the fixing components 31 are respectively fixed to the second fixed mold plate 3 and the movable mold plate 14 by fasteners. The setting of the fixing components 31 ensures that the relative position of the fixed mold component and the movable mold component remains unchanged, making the mold clamping more secure.

[0030] According to the description and drawings of the present invention, those skilled in the art can easily manufacture or use the injection mold for adjusting the worm extension shaft of the present invention, and can produce the positive effects recorded in the present invention.

[0031] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0032] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An injection mold for adjusting a worm extension shaft, characterized in that: include: A fixed mold assembly, the fixed mold assembly comprising a fixed mold base plate (1), a first fixed mold plate (2) fixedly connected to the bottom of the fixed mold base plate (1), and a second fixed mold plate (3) fixed to the bottom of the first fixed mold plate (2); a positioning ring (4) is provided at the center of the fixed mold base plate (1), and a glue inlet pipe (5) corresponding to the positioning ring (4) is provided inside the fixed mold base plate (1) and the first fixed mold plate (2); a plurality of mutually connected glue grooves (6) are provided on the surface of the second fixed mold plate (3), and the glue grooves (6) a first pouring channel (7) penetrating the second fixed mold plate (3) is provided at the end; a fixed mold core (8) is fixedly connected to the interior of the second fixed mold plate (3); a fixed mold forming block (9) is installed in the fixed mold core (8); the fixed mold forming block (9) is provided with a plurality of fixed mold cavities (10); a second pouring channel (11) communicating with the first pouring channel (7) is provided at the top of the fixed mold core (8); the fixed mold cavity (10) is arranged directly below the second pouring channel (11); A movable mold assembly, the movable mold assembly comprising a movable mold base plate (12), fixed blocks (13) fixedly connected to both sides of the movable mold base plate (12), and a movable mold plate (14) fixedly connected to the fixed blocks (13); the two fixed blocks (13) and the movable mold base plate (12) and the movable mold plate (14) are jointly arranged to form a receiving space, and an ejection mechanism is arranged in the receiving space; the top of the movable mold plate (14) is fixedly connected to a movable mold core (15); the middle of the movable mold core (15) is fixedly connected to a horizontally arranged protrusion (16), and the protrusion (16) is A plurality of hexagonal protrusions (17) are arranged on the surface; movable mold forming blocks (18) are arranged on both sides of the protrusion (16); the outer side of the movable mold forming block (18) is inserted into the groove of the positioning block (19); and pressure blocks (20) for pressing the positioning block (19) are arranged on both sides of the positioning block (19); the pressure blocks (20) are fixedly connected to the movable mold plate (14); the inner side walls of the two movable mold forming blocks (18) abut against each other and enclose and form a plurality of movable mold cavities (21); and the hexagonal protrusions (17) are arranged in the movable mold cavities (21).

2. The injection mold for adjusting the worm extension shaft according to claim 1, characterized in that: The ejection mechanism comprises an ejector push plate (22) arranged on a movable mold base plate (12), a push plate fixing plate (23) fixedly connected above the ejector push plate (22), and an ejector (24) penetrating the push plate fixing plate (23) and arranged toward the fixed mold assembly, wherein the ejector (24) is fixedly connected to the ejector push plate (22).

3. The injection mold for adjusting the worm extension shaft according to claim 1, characterized in that: The ejection mechanism also includes a buffer unit, which includes a buffer rod (25) and a spring (26) sleeved on the buffer rod (25). Four buffer rods (25) and four springs (26) are provided and are evenly distributed on the four corners of the push plate fixing plate (23).

4. The injection mold for adjusting the worm extension shaft according to claim 1, characterized in that: The four corners of the fixed die plate (1) are respectively fixedly connected with guide pillars (27) which pass through the fixed die plate (1), the first fixed die plate (2), the second fixed die plate (3) and the movable die plate (14) in sequence, and the bottom of the guide pillar (27) is inserted into the interior of the fixed block (13); the first fixed die plate (2) is fixedly connected with a first guide sleeve (28) which is matched with the guide pillar (27), the second fixed die plate (3) is fixedly connected with a second guide sleeve (29) which is matched with the guide pillar (27), and the movable die plate (14) is fixedly connected with a third guide sleeve (30) which is matched with the guide pillar (27).

5. The injection mold for adjusting the worm extension shaft according to claim 1, characterized in that: The second fixed die plate (3) and the movable die plate (14) are respectively provided with fixing components (31) around their peripheries, and the upper and lower sides of the fixing components (31) are respectively fixed to the second fixed die plate (3) and the movable die plate (14) by fasteners.

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