Injection mold for insert type cavity

Abstract

The utility model discloses an injection mold for an insert type cavity. The injection mold comprises a clamping assembly, a driving assembly arranged at the bottom of the clamping assembly, and a self-locking assembly arranged at the bottom of the driving assembly, the clamping assembly comprises a clamping rod, a shell arranged at the bottom of the clamping rod and a pushing rod connected with the clamping rod and the shell. The clamping rods and the pushing rods are symmetrically arranged with the shell as the center. The driving assembly comprises a gear set and an extending piece arranged on the side face of the gear set. The extension piece is rotationally connected with the push rod; the gear set is used for driving the pushing rod to move so as to push the clamping rod to rotate; the self-locking assembly comprises a worm gear set and a driving rod meshed with the worm gear set. The driving rod is used for driving the worm gear group to rotate; and the clamping rods can be adjusted according to the inserts required by the injection mold, so that the injection mold can better adapt to different sizes of mold inserts required by products.

Description

Technical Field

[0001] The utility model relates to the field of insert molds, in particular to an injection mold for an insert-type cavity. Background Art

[0002] Insert-type cavity injection mold, as the name implies, is a mold that can fix metal or other material inserts in the mold during the injection molding process, so that the plastic and the insert are tightly combined to form a composite product with specific functions. This mold usually consists of two parts: a fixed mold and a movable mold. The fixed mold has a cavity for placing the insert and injecting plastic, while the movable mold is responsible for separating from the fixed mold after the injection is completed and taking out the finished product. The key technology of this type of mold is to ensure the precise positioning and stability of the insert during the injection molding process, as well as the perfect combination of plastic and insert. To achieve this goal, mold designers need to carefully design parameters such as the fixing method of the insert, injection pressure and temperature to ensure product quality and performance; in the prior art, such as the utility model patent CN212288519U discloses a DMC mold using a petal-type threaded insert, including a template, a front template, a front mold core, a rear template, a rear mold core, a rear mold core threaded insert, a rear mold core insert insert, a petal-type threaded insert, and a front mold core insert insert. The upper template is installed at the upper end of the front template, and the rear template is located directly below the front template. With the diversification of consumer demand, customers have higher and higher requirements for the customized attributes of products. They hope to customize insert-type injection molding products with specific functions, shapes and sizes according to their actual needs. However, the existing insert-type cavity injection molds have relatively single functions and can often only fix one type or one size of insert.

[0003] Therefore, it is necessary to improve an insert in an injection mold for an insert-type cavity in the prior art to solve the above-mentioned problems. Summary of the invention

[0004] The utility model overcomes the deficiencies of the prior art, provides an injection mold for an insert-type cavity, and aims to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an injection mold for an insert-type cavity, comprising: a clamping component, a driving component arranged at the bottom of the clamping component, and a self-locking component arranged at the bottom of the driving component;

[0006] The clamping assembly includes a clamping rod, a shell disposed at the bottom of the clamping rod, and a push rod connected to the clamping rod and the shell respectively; the clamping rod and the push rod are symmetrically disposed with the shell as the center;

[0007] The driving assembly includes a gear set and an extension piece arranged on the side of the gear set; the extension piece is rotatably connected to the push rod; the gear set is used to drive the push rod to move, thereby driving the clamping rod to rotate;

[0008] The self-locking assembly includes a worm gear set and a driving rod meshing with the worm gear set; the driving rod is used to drive the worm gear set to rotate, the worm gear set is fixedly connected to the gear set, and the worm gear set is used to lock the gear set while driving the gear set.

[0009] In a preferred embodiment of the utility model, one end of the clamping rod is rotatably connected to the housing, and the other end of the clamping rod is used to clamp the object of the insert.

[0010] In a preferred embodiment of the utility model, the gear set includes a first gear and a second gear, and the first gear and the second gear are meshed with each other.

[0011] In a preferred embodiment of the utility model, the first gear and the second gear are both provided with extension pieces on their sides, and the first gear and the second gear are rotatably connected to the housing.

[0012] In a preferred embodiment of the present invention, the extension pieces on the sides of the first gear and the second gear are fixedly connected.

[0013] In a preferred embodiment of the utility model, the front end of the driving rod is arranged in a worm shape, and the driving rod is rotatably connected to the housing.

[0014] In a preferred embodiment of the utility model, the worm gear set includes a first worm gear and a second worm gear, the first worm gear is fixedly connected to the first gear, and the second worm gear is fixedly connected to the second gear.

[0015] In a preferred embodiment of the utility model, the first worm gear and the second worm gear are symmetrically arranged with respect to the driving rod, and the front end of the driving rod is respectively meshed with the first worm gear and the second worm gear.

[0016] In a preferred embodiment of the present invention, the first worm wheel and the first gear are located at the same center of a circle, and the second worm wheel and the second gear are located at the same center of a circle.

[0017] The utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0018] 1. The utility model provides an injection mold for an insert-type cavity. Through the mutual cooperation between a worm gear set, a gear set and a push rod, the drive rod is rotated to drive the worm gear set to rotate, and then the gear set is driven to rotate, and then the push rod drives the clamping rod to complete the opening and closing action. Compared with the prior art, the device of the application expands the opening angle of the clamping rod, so that the device of the application can clamp a larger insert, and can adjust the clamping rod according to the insert required by the injection mold, so that the injection mold of the application can better adapt to the different sizes of mold inserts required by the product.

[0019] 2. The utility model provides an injection mold for an insert-type cavity. Through the cooperation between a driving rod and a worm gear set, the driving rod is rotated, and the worm at the front end of the driving rod drives the worm wheel to rotate, and the worm gear set drives the gear set to rotate, so that the movement of the clamping rod is controlled by the worm gear as a drive. Compared with the prior art, the worm gear with a self-locking function is used as a drive, so that the clamping piece is fixed while the insert is clamped, so that injection molding can be carried out directly, which greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0021] Figure 1 It is a three-dimensional structural diagram of a preferred embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure of the self-locking assembly of the preferred embodiment of the utility model;

[0023] In the figure: 1, clamping assembly; 10, housing; 11, push rod; 12, clamping rod;

[0024] 2. driving assembly; 20. gear set; 21. extension piece;

[0025] 3. Self-locking assembly; 30. Driving rod; 31. Worm gear assembly. DETAILED DESCRIPTION

[0026] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0027] like Figure 1 As shown, an injection mold for an insert-type cavity comprises: a clamping assembly 1, a driving assembly 2 arranged at the bottom of the clamping assembly 1, and a self-locking assembly 3 arranged at the bottom of the driving assembly 2;

[0028] The clamping assembly 1 includes a clamping rod 12, a housing 10 disposed at the bottom of the clamping rod 12, and a push rod 11 connected to the clamping rod 12 and the housing 10 respectively; the clamping rod 12 and the push rod 11 are symmetrically disposed with the housing 10 as the center;

[0029] In a preferred embodiment of the present invention, one end of the clamping rod 12 is rotatably connected to the housing 10, and the other end of the clamping rod 12 is used to clamp the object of the insert.

[0030] It should be noted that there are two clamping rods 12 and two pushing rods 11, and the two clamping rods 12 are rotatably connected to the top of the shell 10. The side of the two clamping rods 12 used for clamping is the inner side, and the side opposite to the inner side is the outer side. The pushing rod 11 is rotatably connected to the outer side of the clamping rod 12, so that the clamping rod 12 can be driven to move by moving the pushing rod 11 when in use.

[0031] like Figure 2 As shown, the driving assembly 2 includes a gear set 20 and an extension member 21 disposed on the side of the gear set 20; the extension member 21 is rotatably connected to the push rod 11; the gear set 20 is used to drive the push rod 11 to move, thereby driving the clamping rod 12 to rotate;

[0032] In a preferred embodiment of the present invention, the gear set 20 includes a first gear and a second gear, and the first gear and the second gear are meshed with each other.

[0033] In a preferred embodiment of the present invention, an extension piece 21 is disposed on the side of the first gear and the second gear, and the first gear and the second gear are rotatably connected to the housing 10 .

[0034] In a preferred embodiment of the present invention, the extension pieces 21 on the sides of the first gear and the second gear are fixedly connected.

[0035] It should be noted that the gear set 20 is rotatably connected to the middle position of the shell 10, and one side of the first gear and the second gear are fixedly connected to the extension piece 21, and one end of the extension piece 21 is rotatably connected to the push rod 11, that is, one end of the extension piece 21 is fixedly connected to the gear set 20, and the other end is rotatably connected to the push rod 11, so that as the gear set 20 rotates, the push rod 11 can be driven to move through the extension piece 21, and the two ends of the push rod 11 are respectively rotatably connected to the clamping rod 12 and the extension piece 21, thereby driving the clamping piece to rotate, and the first gear and the second gear in the gear set 20 are in a meshing state, and as one of the gears rotates, the other gear can be driven to move in the opposite direction, thereby driving the clamping piece to open and close.

[0036] The self-locking assembly 3 includes a worm gear set 31 and a driving rod 30 meshing with the worm gear set 31; the driving rod 30 is used to drive the worm gear set 31 to rotate, the worm gear set 31 is fixedly connected to the gear set 20, and the worm gear set 31 is used to lock the gear set 20 while driving the gear set 20.

[0037] In a preferred embodiment of the present invention, the front end of the driving rod 30 is worm-shaped, and the driving rod 30 is rotatably connected to the housing 10 .

[0038] In a preferred embodiment of the present invention, the worm gear set 31 includes a first worm gear and a second worm gear, the first worm gear is fixedly connected to the first gear, and the second worm gear is fixedly connected to the second gear.

[0039] In a preferred embodiment of the present invention, the first worm gear and the second worm gear are symmetrically arranged with respect to the driving rod 30, and the front end of the driving rod 30 is respectively meshed with the first worm gear and the second worm gear.

[0040] In a preferred embodiment of the present invention, the first worm wheel and the first gear are located at the same center of a circle, and the second worm wheel and the second gear are located at the same center of a circle.

[0041] It should be noted that the driving rod 30 consists of two parts. The front end part is a worm, and the two sides of the worm part are meshed with the worm gear set 31. The rear end part is a straight rod, which can drive the worm wheels on both sides to rotate by rotating the straight rod, and then drive the gear fixedly connected to the worm wheel to rotate. The worm gear itself has a self-locking property, so that when driven by the worm gear, the rotation angle of the clamping rod 12 is fixed.

[0042] When the utility model is used, when inserts of different sizes are fixed in the mold, the drive rod 30 is rotated to drive the worm gear sets 31 on both sides of the drive rod 30 to rotate, thereby driving the gear set 20 fixedly connected to one side of the worm gear set 31 to rotate, thereby driving the push rod 11 to rotate through the extension piece 21, thereby driving the clamping rod 12 to rotate, and the spacing between the clamping rods 12 is expanded and reduced as the drive rod 30 rotates forward and reverse, and this rotation can drive the two clamping rods 12 to rotate 180°, so as to clamp the insert to the maximum extent.

[0043] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. An injection mold for an insert-type cavity, comprising: A clamping assembly (1), a driving assembly (2) arranged at the bottom of the clamping assembly (1), and a self-locking assembly (3) arranged at the bottom of the driving assembly (2), characterized in that: The clamping assembly (1) comprises a clamping rod (12), a shell (10) arranged at the bottom of the clamping rod (12), and a pushing rod (11) connected to the clamping rod (12) and the shell (10) respectively; the clamping rod (12) and the pushing rod (11) are symmetrically arranged with the shell (10) as the center; The driving assembly (2) comprises a gear set (20) and an extension piece (21) arranged on a side of the gear set (20); the extension piece (21) is rotatably connected to the push rod (11); the gear set (20) is used to drive the push rod (11) to move, thereby driving the clamping rod (12) to rotate; The self-locking assembly (3) comprises a worm gear set (31) and a driving rod (30) meshed with the worm gear set (31); the driving rod (30) is used to drive the worm gear set (31) to rotate, the worm gear set (31) is fixedly connected to the gear set (20), and the worm gear set (31) is used to lock the gear set (20) while driving the gear set (20).

2. The injection mold for an insert-type cavity according to claim 1, characterized in that: One end of the clamping rod (12) is rotatably connected to the housing (10), and the other end of the clamping rod (12) is used to clamp the object of the insert.

3. The injection mold for an insert-type cavity according to claim 1, characterized in that: The gear set (20) comprises a first gear and a second gear, and the first gear and the second gear are meshed with each other.

4. The injection mold for an insert-type cavity according to claim 3, characterized in that: An extension piece (21) is provided on the side surface of the first gear and the second gear, and the first gear and the second gear are rotationally connected to the housing (10).

5. The injection mold for an insert-type cavity according to claim 4, characterized in that: The extension pieces (21) on the sides of the first gear and the second gear are fixedly connected.

6. The injection mold for an insert-type cavity according to claim 1, characterized in that: The front end of the driving rod (30) is worm-shaped, and the driving rod (30) is rotationally connected to the housing (10).

7. The injection mold for an insert-type cavity according to claim 3, characterized in that: The worm gear set (31) comprises a first worm gear and a second worm gear, the first worm gear is fixedly connected to the first gear, and the second worm gear is fixedly connected to the second gear.

8. The injection mold for an insert-type cavity according to claim 7, characterized in that: The first worm gear and the second worm gear are symmetrically arranged with respect to the driving rod (30), and the front end of the driving rod (30) is respectively meshed with the first worm gear and the second worm gear.

9. The injection mold for an insert-type cavity according to claim 7, characterized in that: The first worm wheel and the first gear are located at the same center of a circle, and the second worm wheel and the second gear are located at the same center of a circle.

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