An injection mold

Abstract

The present application discloses an injection mold, which relates to the field of injection molding technology and reduces the difficulty of disassembling and assembling the injection mold. The mold comprises a base, two parallel templates slidably connected to the base, and mold cavities are provided on the sides of the two templates that are close to each other; the base is also provided with two groups of adjustment mechanisms for adjusting the distance between the two templates, and the two adjustment mechanisms are symmetrically arranged with respect to the center of the base, and the two templates are located between the two adjustment mechanisms. An adjustment hole extending along the length direction of the adjustment plate is provided on the adjustment plate, and a cylinder that is always located in the adjustment hole is fixed on the side wall of the template; a limit rod is fixed on the splicing side of one of the templates, and a limit hole for the limit rod to fit and insert is provided on the splicing side of the other template; when the two adjustment plates rotate in the direction of approaching each other, the two templates move in the direction of approaching each other. The present application can facilitate the opening and closing process of the two templates, and the operation is relatively convenient.

Description

Technical Field

[0001] The present application relates to the field of injection molding technology, and in particular to an injection mold. Background Art

[0002] Injection molds are tools for producing plastic products, mainly used for mass production. Injection molds can easily and quickly provide plastic products with complete structures and precise dimensions.

[0003] The injection mold generally includes a first template and a second template that are spliced ​​in half, and a mold cavity is opened on the splicing side of the first template and the second template. When performing injection molding, the mold needs to be locked, and the first template and the second template are generally fastened and fixed with multiple bolts after being spliced, and the installation and disassembly process is relatively troublesome. Summary of the invention

[0004] In order to reduce the difficulty of disassembling and assembling an injection mold, the present application provides an injection mold.

[0005] The present application provides an injection mold, which adopts the following technical solution:

[0006] An injection mold comprises a base, two parallel templates slidably connected to the base, and mold cavities are provided on the adjacent sides of the two templates; the base is also provided with two groups of adjustment mechanisms for adjusting the distance between the two templates, the two adjustment mechanisms are symmetrically arranged around the center of the base, and the two templates are located between the two adjustment mechanisms; the adjustment mechanisms include:

[0007] Two adjustment plates, one end of each of the two adjustment plates is rotatably connected to the same side of the base and is symmetrically arranged;

[0008] A driving assembly, used for driving the two adjustment plates to rotate synchronously in a direction of approaching or moving away from each other;

[0009] Among them, an adjustment hole extending along the length direction of the adjustment plate is provided on the adjustment plate, and a cylinder that is always located in the adjustment hole is fixed on the side wall of the template; a limit rod is fixed on the splicing side of one of the templates, and a limit hole for the limit rod to adapt to and insert into is provided on the splicing side of the other template; when the two adjustment plates rotate toward the direction of approaching each other, the two templates move toward the direction of approaching each other; when the two adjustment plates rotate toward the direction of moving away from each other, the two templates move toward the direction of moving away from each other.

[0010] By adopting the above technical solution, when opening and closing the mold, it is only necessary to use the driving component to drive the two adjustment plates to move towards or away from each other, so that the adjustment plate pushes the cylinder to move the two templates along the axial direction of the limiting rod towards or away from each other, thereby realizing the opening and closing of the two templates, and the opening and closing process of the mold is relatively simple.

[0011] Optionally, a sleeve is fixedly connected to one end of the adjustment plate, and a rotating shaft for the sleeve to be mounted is fixed on the side wall of the base.

[0012] By adopting the above technical solution, the adjustment plate is sleeved on the rotating shaft through the sleeve, so that the rotation connection of the adjustment plate can be achieved, and the friction resistance of the adjustment plate rotation is small.

[0013] Optionally, the drive assembly includes a first worm and a first worm wheel coaxially fixed to the outer peripheral side of the sleeve, the first worm is vertically rotatably connected to one side of the base and is located between two adjustment plates, and the first worm is simultaneously engaged with two adjacent first worm wheels.

[0014] By adopting the above technical solution, when in use, by rotating the first worm, the first worm will drive the two first worm wheels to rotate, thereby realizing the adjustment of the rotation angle of the two adjustment plates. At the same time, through the self-locking between the first worm and the first worm wheel, the adjusted adjustment plate can be maintained in the desired position.

[0015] Optionally, two parallel limit strips are provided on the upper end surface of the base, and the two templates are slidably connected between the two limit strips, and a guide groove extending along the axial direction of the limit rod is provided at the bottom of the two templates on the side away from each other; guide plates are hinged at both ends of the two limit strips, and the two guide plates are respectively adapted to the guide grooves of the two templates; baffles located above the guide plates are also provided at both ends of the limit strips, and when the guide plates are rotated to a horizontal state, the upper end surface of the guide plates abuts against the lower end surface of the baffles; an elastic member is also provided on the base, which always drives the guide plates to rotate toward the baffle direction; when the two templates move the guide plates in the direction away from each other until they abut against the bottom of the guide groove, the limit rod disengages from the limit hole and the two templates are both located outside the base.

[0016] By adopting the above technical solution, when the two templates move in directions away from each other until the guide plate and the bottom of the guide groove are butted against each other, the limit rod disengages from the limit hole and the two templates are both located outside the base, and the two adjustment plates continue to be controlled to rotate in directions away from each other, so that the two templates can rotate around the hinge axis of the guide plate, so that the two templates can be opened outward, thereby facilitating the cleaning of the template cavity.

[0017] Optionally, the elastic member includes a spring, one end of the spring is connected to the guide plate, and the other end of the spring is connected to the base, and the spring always pushes the guide plate to rotate in the direction of the baffle.

[0018] By adopting the above technical solution, when the template moves from an open state toward a closed state, the spring will generate an upward thrust on the template, so that the template can be flipped upward, thereby achieving a labor-saving effect.

[0019] Optionally, the base is also provided with a linkage mechanism for driving the adjustment plates of the two groups of adjustment mechanisms to rotate synchronously.

[0020] By adopting the above technical solution and setting the linkage mechanism, the linkage of the two groups of adjustment mechanisms can be achieved, further facilitating the stability of mold opening and closing.

[0021] Optionally, the linkage mechanism includes a linkage shaft rotatably connected to the base, the linkage shaft and the rotating shaft are parallel to each other, both ends of the linkage shaft extending out of the base are coaxially fixed with a second worm, one end of the first worm is fixed with a second worm wheel, and the two second worm wheels are respectively engaged with the two second worms.

[0022] By adopting the above technical solution, when the second worm rotates, the two second worms will drive the two second worm wheels to rotate, so that the first worm rotates and drives the two meshing first worm wheels to rotate, thereby realizing the adjustment of the two adjustment plates.

[0023] Optionally, four limiting rods are provided, and the four limiting rods are distributed at four corners of the template.

[0024] By adopting the above technical solution and setting four limit rods, the stability of the two templates when opening and closing the molds can be improved.

[0025] In summary, the present application includes at least one of the following beneficial effects:

[0026] 1. This application can facilitate the opening and closing process of the two templates, and the operation is relatively convenient;

[0027] 2. The two templates that open outwards can facilitate the staff to clean the mold cavity of the template. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0029] Figure 2 is a schematic diagram of the template explosion of this embodiment;

[0030] Figure 3 This is a schematic diagram showing the state of two templates being in an open state in this embodiment;

[0031] Figure 4 It is a structural schematic diagram of the base of this embodiment;

[0032] Figure 5 Schematic diagram of the structure of the linkage rod of this embodiment.

[0033] Explanation of the accompanying drawings: 1. base; 2. template; 3. mold cavity; 4. limit strip; 5. limit rod; 6. limit hole; 7. rotating shaft; 8. sleeve; 9. limit block; 10. adjustment plate; 11. adjustment hole; 12. cylinder; 13. first worm gear; 14. second worm gear; 15. first worm; 16. second worm; 17. linkage shaft; 18. handle; 19. guide groove; 20. guide plate; 21. hinge shaft; 22. hinge seat; 23. baffle; 24. spring; 25. arc guide rod; 26. guide block; 27. guide hole. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with the accompanying drawings.

[0035] The present application embodiment discloses an injection mold. Figure 1 , 2 The injection mold includes a base 1, two templates 2 slidably connected to the base 1, the two templates 2 are parallel to each other, and a mold cavity 3 is opened on the side where the two templates 2 are close to each other, and an injection port connected to the mold cavity 3 is provided on one of the templates 2. When the two templates 2 are against each other, the mold cavities 3 of the two templates 2 form a complete product casting space.

[0036] Reference Figure 1 , 2 The upper end surface of the base 1 is integrally provided with two parallel limiting strips 4 , the two limiting strips 4 and the upper end surface of the base 1 form a through slide groove, and the two templates 2 are slidably connected in the slide groove formed by the two limiting strips 4 .

[0037] Reference Figure 2 In order to improve the stability of the template 2 when sliding, a plurality of limiting rods 5 are welded on the splicing side of one template 2, and a limiting hole 6 adapted to the limiting rod 5 is opened on the other template 2. In this embodiment, four limiting rods 5 are taken as an example, and the four limiting rods 5 are distributed at the four corners of the template 2. Of course, in other embodiments, the number of limiting rods 5 can also be two, three, or even more.

[0038] Reference Figure 3 , 4 Two sets of adjustment mechanisms are provided on the base 1, and the two sets of adjustment mechanisms are symmetrically arranged with the base 1 as the center. The two templates 2 are located between the two sets of adjustment mechanisms. The two sets of adjustment mechanisms are used to adjust the distance between the two templates 2, so as to realize the opening and closing of the two templates 2.

[0039] Reference Figure 3 , 4The adjustment mechanism includes two adjustment plates 10 and a driving assembly. One end of the two adjustment plates 10 is rotatably connected to the side wall of the base 1 and is symmetrically arranged on the side wall of the base 1. Specifically, two parallel rotating shafts 7 are welded to the side wall of the base 1, and the two rotating shafts 7 are symmetrically arranged in the length direction of the side wall of the base 1. A sleeve 8 is vertically welded to one end of the two adjustment plates 10, and the sleeve 8 is sleeved on the rotating shaft 7 to realize the rotation connection between the adjustment plate 10 and the base 1. A limiting block 9 is also welded to the end of the rotating shaft 7 away from the base 1 to prevent the sleeve 8 from separating from the rotating shaft 7. An adjustment hole 11 extending along the length direction of the adjustment plate 10 is opened on the adjustment plate 10, and a cylinder 12 located in the adjustment hole 11 is welded to the outer side of the template 2, and the cylinder 12 is located in the middle and upper position of the template 2.

[0040] Reference Figure 4 , 5 The driving assembly is used to drive the two adjustment plates 10 to rotate synchronously in the direction of approaching or moving away from each other. Specifically, the driving assembly includes a first worm 15 and a first worm wheel 13 welded on the outer peripheral side of the sleeve 8. The first worm 15 is rotatably connected to the side wall of the base 1 through a bearing seat and is located between the two rotating shafts 7. The first worm wheels 13 on the two sleeves 8 are meshed with the first worm 15. When the first worm 15 rotates, the first worm 15 will drive the two first worm wheels 13 to rotate, so that the two adjustment plates 10 rotate synchronously under the action of the first worm wheel 13, thereby controlling the opening and closing of the two templates 2.

[0041] Reference Figure 4 , 5 In order to enable the two groups of adjustment mechanisms to move synchronously, a linkage assembly is also provided on the base 1. Specifically, the linkage assembly includes a linkage shaft 17, which is rotatably connected to the middle part of the base 1 and extends out of the opposite sides of the base 1 along the axial direction of the rotating shaft 7. The bottom end of the first worm 15 is coaxially welded with a second worm wheel 14, and both ends of the linkage shaft 17 extending out of the base 1 are coaxially welded with a second worm 16. The two second worm wheels 14 are respectively meshed with the two second worms 16, and a handle 18 is welded to the end of one of the second worms 16. When the user applies force to the handle 18, the synchronous rotation of the two second worms 16 can realize the synchronous rotation of the adjustment plates 10 of the two groups of adjustment mechanisms.

[0042] Reference Figure 2 , 4A guide groove 19 is provided at the bottom of the two templates 2 on the side away from each other, and the guide groove 19 extends horizontally along the axis direction of the limit rod 5. Guide plates 20 are connected to both ends of the two limit bars 4, and the two guide plates 20 are respectively adapted to the guide grooves 19 on the two templates 2, and block the sliding path of the template 2. Specifically, hinge shafts 21 are welded on both sides of the guide plate 20 close to one end of the base 1, and hinge seats 22 are welded on both ends of the limit bar 4. The hinge shaft 21 at one end of the guide plate 20 is rotatably connected to the hinge seat 22 of the limit bar 4, so that the guide plate 20 can be turned up and down around the hinge shaft 21.

[0043] Reference Figure 4 , baffles 23 are also provided at both ends of the limit strip 4, and the baffles 23 extend outward along the length direction of the limit strip 4, and the baffles 23 are located above the guide plate 20. When the guide plate 20 is flipped from bottom to top to a horizontal state, the upper end surface of the guide plate 20 abuts against the lower end surface of the baffle 23, so that the guide plate 20 and the guide groove 19 of the template 2 are in a relative position.

[0044] Reference Figure 4 In order to keep the guide plate 20 in a horizontal position against the baffle 23, an elastic member is provided between the guide plate 20 and the base 1. Specifically, the elastic member includes a spring 24 with an arc-shaped structure. Guide blocks 26 are integrally provided on both sides of the end of the guide plate 20 away from the base 1. An arc-shaped guide rod 25 is welded on the side wall of the base 1. The axis of the arc-shaped guide rod 25 coincides with the axis of the hinge shaft 21. A guide hole 27 for the arc-shaped guide rod 25 to pass through is provided on the guide block 26. The arc-shaped guide rod 25 is always inserted in the guide hole 27. The spring 24 is mounted on the arc-shaped guide rod 25, and one end of the spring 24 is against the guide block 26, and the other end is against the side wall of the base 1. In the absence of external force, the spring 24 can push the guide block 26 to drive the guide plate 20 to flip upward, and keep the guide plate 20 in a horizontal state against the baffle 23.

[0045] When the two templates 2 move in directions away from each other until the guide plate 20 abuts against the bottom of the guide groove 19, the limit rod 5 disengages from the limit hole 6 and the two templates 2 are both outside the base 1. At this time, the two adjustment plates 10 continue to be controlled to rotate in directions away from each other, so that the two templates 2 can rotate around the hinge shaft 21 of the guide plate 20, so that the two templates 2 are opened outward to facilitate the cleaning of the mold cavity 3.

[0046] When the two adjustment plates 10 rotate, the two templates 2 first turn upward to a vertical state with the axis center of the guide plate 20, and continue to rotate the adjustment plate 10, the adjustment plate 10 will push the two templates 2 to move in a direction close to each other, so that the limit rod 5 is inserted into the corresponding limit hole 6, and the mold closing process of the two templates 2 is realized. During the rotation process, the elastic force applied by the spring 24 to the guide plate 20 can make the template 2 more labor-saving when rotating.

[0047] The implementation principle of an injection mold in the embodiment of the present application is:

[0048] When opening the mold, turn the handle 18 to rotate the two adjustment plates 10 of the adjustment mechanism in directions away from each other, and the two templates 2 move accordingly. Then, continue to control the adjustment plate 10 to rotate outward, so that the limit rod 5 is separated from the limit hole 6, so that the guide groove 19 of the template 2 is plugged into the guide plate 20, so that the template 2 opens outward as the guide plate 20 rotates downward. When the two templates 2 are opened to a horizontal position, the staff can take the formed mold out of the mold cavity 3 and clean the inside of the mold cavity 3.

[0049] When closing the mold, reverse the handle 18 so that the two adjustment plates 10 drive the cleaned template 2 to rotate to a vertical position, and continue to rotate the handle 18 in the same direction so that the limiting rods 5 and limiting holes 6 on the two templates 2 are plugged and matched and abut against each other, thereby completing the mold closing.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An injection mold, characterized in that: The invention comprises a base (1), two parallel templates (2) slidably connected to the base (1), and a mold cavity (3) is provided on the adjacent sides of the two templates (2); the base (1) is also provided with two sets of adjustment mechanisms for adjusting the distance between the two templates (2), the two adjustment mechanisms are symmetrically arranged around the center of the base (1), and the two templates (2) are located between the two adjustment mechanisms; the adjustment mechanisms comprise: Two adjustment plates (10), one end of each of the two adjustment plates (10) being rotatably connected to the same side of the base (1) and symmetrically arranged; A driving assembly, used for driving the two adjustment plates (10) to rotate synchronously in a direction of approaching or moving away from each other; The adjusting plate (10) is provided with an adjusting hole (11) extending along the length direction of the adjusting plate (10), and a cylinder (12) which is always located in the adjusting hole (11) is fixed to the side wall of the template (2); a limiting rod (5) is fixed to the splicing side of one of the templates (2), and a limiting hole (6) for the limiting rod (5) to fit and insert is provided on the splicing side of the other template (2); when the two adjusting plates (10) rotate in a direction approaching each other, the two templates (2) move in a direction approaching each other; when the two adjusting plates (10) rotate in a direction moving away from each other, the two templates (2) move in a direction moving away from each other; One end of the adjustment plate (10) is fixedly connected to a sleeve (8), and a rotating shaft (7) for the sleeve (8) to be mounted on is fixed on the side wall of the base (1); The driving assembly comprises a first worm (15) and a first worm wheel (13) coaxially fixed to the outer peripheral side of the sleeve (8); the first worm (15) is vertically rotatably connected to one side of the base (1) and is located between two adjustment plates (10); the first worm (15) is simultaneously meshed with two adjacent first worm wheels (13); The base (1) is also provided with a linkage mechanism for driving the adjustment plates (10) of the two groups of adjustment mechanisms to rotate synchronously.

2. An injection mold according to claim 1, characterized in that: The upper end surface of the base (1) is provided with two parallel limiting strips (4), the two templates (2) are slidably connected between the two limiting strips (4), and the bottom of the two templates (2) on the side away from each other is provided with a guide groove (19) extending along the axial direction of the limiting rod (5); both ends of the two limiting strips (4) are hinged with guide plates (20), and the two guide plates (20) are respectively adapted to the guide grooves (19) of the two templates (2); both ends of the limiting strip (4) are also provided with guide plates (20) located on the guide plates (2 0), when the guide plate (20) is rotated to a horizontal state, the upper end surface of the guide plate (20) abuts against the lower end surface of the baffle plate (23); the base (1) is also provided with an elastic member that always drives the guide plate (20) to rotate in the direction of the baffle plate (23); when the two templates (2) move the guide plate (20) in a direction away from each other until they abut against the bottom of the guide groove (19), the limiting rod (5) is disengaged from the limiting hole (6) and the two templates (2) are both located outside the base (1).

3. An injection mold according to claim 2, characterized in that: The elastic member comprises a spring (24), one end of the spring (24) is connected to the guide plate (20), and the other end is connected to the base (1), and the spring (24) always pushes the guide plate (20) to rotate in the direction of the baffle plate (23).

4. The injection mold according to claim 1, characterized in that: The linkage mechanism comprises a linkage shaft (17) rotatably connected to the base (1), the linkage shaft (17) and the rotating shaft (7) being parallel to each other, and both ends of the linkage shaft (17) extending out of the base (1) are coaxially fixed with a second worm (16), one end of the first worm (15) is fixed with a second worm wheel (14), and the two second worm wheels (14) are respectively meshed with the two second worms (16).

5. The injection mold according to claim 1, characterized in that: Four limiting rods (5) are provided, and the four limiting rods (5) are distributed at the four corners of the template (2).

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