Device for cutting fracture groove of injection-molded projectile body

Abstract

The invention relates to the technical field of mechanical parts, and particularly discloses a device for cutting a fracture groove of an injection-molded projectile body. The device for cutting the fracture groove of the injection-molded projectile body comprises a base, a positioning bottom support, a main shaft, a support, a gear shaft, a bearing end cover, a conical handle, a handle, a blind nut, a spring, a stand column and a blade. The notch tool designed by the invention can cut a plurality of notches of the fracture groove of the injection molding part at the same time, and the uniformity of the depth of notches can be effectively controlled. During operation, a product needing to be cut only needs to be placed on the positioning bottom support, then one-time cutting can be completed by rotating the handle, operation is simple and easy to achieve, and labor efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical parts, and in particular discloses a device for cutting a fracture groove of an injection-molded elastic body. Background Art

[0002] A projectile structure, such as Figure 1 As shown in the figure, there is a fracture groove on the body. This component occupies the most core position in the entire product, and injection molding is one of the most critical and important processes in the assembly of this component. However, after injection molding, the fracture groove of the component is adhered, which seriously affects the subsequent use of the product.

[0003] At present, the adhesion part of the fracture groove is mainly cut by hand with a blade, which can easily cause damage to the core of the product and the shape after injection molding, affecting the product quality.

[0004] Therefore, it is necessary to design a cutting device specifically for cutting the adhesion of the fracture groove of the injection molded parts, which can effectively control the depth of the cut and cut four notches at a time, thereby improving labor efficiency and not causing damage to the product. Summary of the invention

[0005] The purpose of the present invention is to provide a cutting device which is efficient, simple and highly stable, so as to improve the working efficiency and processing stability of cutting the adhesion of the fracture groove of the injection-molded component.

[0006] The present invention is achieved through the following technical solutions:

[0007] In a first aspect, the present invention provides a device for cutting a fracture groove of an injection-molded elastic body, comprising a base 1, a positioning base 2, a main shaft 3, a bracket 4, a gear shaft 5, a bearing end cover 6, a vertebral handle 7, a handle 9, an upper cover 10, a screw cover 11, a spring 12, a column 13 and a blade;

[0008] The positioning base 2 is arranged on the table top of the base 1, matching the bottom of the elastic body to complete the axial positioning; the column 13 is arranged on the table top, and the bracket 4 is fixed on the column 13 and parallel to the base 1;

[0009] The bracket 4 is provided with a table top, and a spindle through hole and a column through hole are opened in the vertical direction of the table top, which are used to install the spindle 3 and the column 13 respectively; the side end of the column through hole is connected with an elastic clamp, which is used to fix the bracket 4 to the required position of the column 13; a through gear shaft through hole is provided on the side of the table top where the spindle through hole is located, and the gear shaft 5 is installed in the gear shaft through hole; a gear structure is provided on the side of the spindle 3, which meshes with the gear shaft 5;

[0010] The support 4 supports and fixes the workpiece to keep it stable during processing and assembly, and plays a positioning role;

[0011] The gear shaft 5 is connected to the handle 9 through the vertebral handle 7. The handle 9 is located on the side of the bracket 4 and can rotate around the axis of the gear shaft 5.

[0012] The outer side is connected with a bearing end cover 6 to ensure that the outer ring of the bearing of the gear shaft 5 is in the correct position on the shaft to prevent movement and to prevent dust and other impurities from entering the bearing;

[0013] A spring 12 is connected above the main shaft 3, one end of the spring 12 is connected to the main shaft 3, and the other end is connected to the screw cover 11, which is used to provide elastic force to restore the main shaft 3 to its initial position after it moves downward; the screw cover 11 is fixed on the upper surface of the bracket 4;

[0014] A notch is provided at the lower end of the main shaft 3 for installing a blade, and the main shaft 3 drives the blade to move downward to achieve the purpose of cutting.

[0015] Preferably, the blades include a first blade 14 and a second blade 15, which are mounted in a cross shape at the bottom end of the main shaft and are used to cut the adhesion parts of the injection-molded bullet body.

[0016] Preferably, the upper cover 10 is installed on the screw cover 11 for sealing and dustproofing.

[0017] Preferably, a handle ball 8 is provided at the end of the handle 9 for use as a hand grip.

[0018] Preferably, the elastic clamping opening of the bracket 4 is a notch extending from the through hole of the column to the side of the table top, and a pair of elastic clamping ears are provided on the table top outside the notch.

[0019] Furthermore, a threaded hole is provided on the clamping ear, and the tightness can be adjusted by threading the elastic clamping ear.

[0020] Preferably, the bracket 4 is provided with a main shaft through hole and a column through hole of 20 mm and 30 mm.

[0021] Furthermore, the gear shaft 5 has a total length of 87 mm, a tooth length of 22 mm, a pitch circle diameter of 30 mm, and transmits the rotational power of the handle; the handle 9 is a cylinder with a length of 125 mm and a diameter of 12 mm. This cutting tool is mainly powered by manually rotating the handle.

[0022] Furthermore, the column 13 is a column with a length of 240 mm and a diameter of 30 mm.

[0023] In a second aspect, the present invention provides a method for using the device for cutting a fracture groove of an injection molded elastomer according to the first aspect, which specifically comprises the following steps:

[0024] S1: Install the blade on the spindle in a cross shape;

[0025] S2: Place the product to be cut on the positioning base 2 of the cutting tool to ensure it is in a vertical state;

[0026] S3: Rotate the handle 9 to drive the spindle 3 to move downward to cut the adhesion of the injection molded parts;

[0027] S4: Remove the product and complete one cutting.

[0028] The beneficial effects of the present invention are:

[0029] The cutting tool designed by the present invention can cut multiple notches of the fracture groove of the injection molded part at the same time, and can effectively control the uniformity of the cutting depth. During operation, it is only necessary to place the product to be cut on the positioning base, and then rotate the handle to complete one cutting. The operation is simple and easy to implement, which greatly improves the labor efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the cutting parts required for the present invention;

[0031] Figure 2 It is a schematic diagram of the two-dimensional structure of the present invention;

[0032] Figure 3 It is an exploded view of the three-dimensional structure of the present invention;

[0033] Figure 4 It is a three-dimensional effect diagram of the present invention. DETAILED DESCRIPTION

[0034] In order to better illustrate the purpose, technical scheme and advantages of the present invention, further description is given below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to illustrate the technical effects of the present invention, rather than to limit the protection scope of the present invention.

[0035] Example 1

[0036] A device for cutting a fracture groove of an injection-molded elastic body, comprising a base 1, a positioning base 2, a main shaft 3, a bracket 4, a gear shaft 5, a bearing end cover 6, a vertebral handle 7, a handle 9, an upper cover 10, a screw cover 11, a spring 12, a column 13 and a blade;

[0037] The positioning base 2 is arranged on the table top of the base 1, matching the bottom of the elastic body to complete the axial positioning; the column 13 is arranged on the table top, and the bracket 4 is fixed on the column 13 and parallel to the base 1;

[0038] The bracket 4 is provided with a table top, and a spindle through hole and a column through hole are opened in the vertical direction of the table top, which are used to install the spindle 3 and the column 13 respectively; the side end of the column through hole is connected with an elastic clamping mouth, which is used to fix the bracket 4 to the required position of the column 13; the elastic clamping mouth of the bracket 4 is a notch extending from the column through hole to the side of the table top, and a pair of elastic clamping ears are provided on the table top outside the notch. The clamping ears are provided with threaded holes, and the elastic clamping ears are threaded to adjust the tightness.

[0039] A through gear shaft through hole is provided on the side of the table where the main shaft through hole is located, and the gear shaft 5 is installed in the gear shaft through hole; a gear structure is provided on the side of the main shaft 3, meshing with the gear shaft 5;

[0040] The support 4 supports and fixes the workpiece to keep it stable during processing and assembly, and plays a positioning role;

[0041] The gear shaft 5 is connected to a handle 9 through a vertebral handle 7. The handle 9 is located on the side of the bracket 4 and can rotate around the axis of the gear shaft 5. A handle ball 8 is provided at the end of the handle 9 to serve as a hand holding point.

[0042] The outer side is connected with a bearing end cover 6 to ensure that the outer ring of the bearing of the gear shaft 5 is in the correct position on the shaft to prevent movement and to prevent dust and other impurities from entering the bearing;

[0043] A spring 12 is connected above the main shaft 3, one end of the spring 12 is connected to the main shaft 3, and the other end is connected to the screw cover 11, which is used to provide elastic force to restore the main shaft 3 to its initial position after it moves downward; the screw cover 11 is fixed on the upper surface of the bracket 4; the upper cover 10 is installed on the screw cover 11 for sealing and dust prevention.

[0044] The lower end of the main shaft 3 is provided with a notch for installing a blade, and the main shaft 3 drives the blade to move downward to achieve the purpose of cutting. The blade includes a first blade 14 and a second blade 15, which are installed at the bottom end of the main shaft in a cross shape and are used to cut the adhesion part of the injection molded bullet body.

[0045] The bracket 4 is provided with a main shaft through hole and a column through hole of 20 mm and 30 mm. The gear shaft 5 is 87 mm in total length, 22 mm in tooth length, and 30 mm in pitch circle diameter, and transmits the rotational power of the handle; the handle 9 is a column with a length of 125 mm and a diameter of 12 mm. The power of this cutting tool is mainly provided by manual rotation of the handle. The column 13 is a column with a length of 240 mm and a diameter of 30 mm.

[0046] The specific steps for use are as follows:

[0047] S1: Install the blade on the spindle in a cross shape;

[0048] S2: Place the product to be cut on the positioning base 2 of the cutting tool to ensure it is in a vertical state;

[0049] S3: Rotate the handle 9 to drive the spindle 3 to move downward to cut the adhesion of the injection molded parts;

[0050] The handle 9 drives the gear shaft 5 to rotate, and the meshing gear shaft 5 drives the main shaft 3 to move downward through the relative movement of the teeth, and the spring 12 in the contracted state changes to the stretched state;

[0051] After the cutting is completed, the handle 9 is released, and the spring 12 in the stretched state returns to the initial position;

[0052] S4: Remove the product and complete one cutting.

[0053] The specific structure described in the present invention can be selected and used according to the situation, but it is not limited to the above structure. Obviously, different structural changes can be made under the concept of the present invention, but they are all protected by the present invention.

Claims

1. A device for cutting a fracture groove of an injection molded elastic body, characterized in that: It comprises a base (1), a positioning base (2), a main shaft (3), a bracket (4), a gear shaft (5), a bearing end cover (6), a shank (7), a handle (9), a screw cover (11), a spring (12), a column (13) and a blade; The positioning base (2) is arranged on the table top of the base (1) and matches the bottom of the elastic body to complete axial positioning; the column (13) is arranged on the table top, and the bracket (4) is fixed on the column (13) and is parallel to the base (1); The bracket (4) is provided with a table top, and a main shaft through hole and a column through hole are opened in the vertical direction of the table top, which are used to install the main shaft (3) and the column (13) respectively; the side end of the column through hole is connected with an elastic clamp, which is used to fix the bracket (4) to the required position of the column (13); a through gear shaft through hole is provided on the side of the table top where the main shaft through hole is located, and the gear shaft (5) is installed in the gear shaft through hole; a gear structure is provided on the side of the main shaft (3) to mesh with the gear shaft (5); The support (4) supports and fixes the workpiece to keep it stable during processing and assembly, and plays a positioning role; The gear shaft (5) is connected to a handle (9) via a vertebral handle (7); the handle (9) is located on the side of the bracket (4) and can rotate around the axis of the gear shaft (5); The outer side of the gear shaft (5) is connected with a bearing end cover (6) to ensure that the outer ring of the bearing of the gear shaft (5) is in the correct position on the shaft to prevent movement and to prevent dust and other impurities from entering the bearing; A spring (12) is connected above the main shaft (3), one end of the spring (12) is connected to the main shaft (3), and the other end is connected to the screw cover (11), and is used to provide elastic force to restore the main shaft (3) to an initial position after the main shaft (3) moves downward; the screw cover (11) is fixed on the upper surface of the bracket (4); A notch is provided at the lower end of the main shaft (3) for mounting a blade, and the main shaft (3) drives the blade to move downward to achieve the purpose of cutting.

2. The device for cutting a fracture groove of an injection molded elastomer according to claim 1, characterized in that: The blades include a first blade (14) and a second blade (15), which are mounted in a cross shape at the bottom end of the main shaft and are used to cut the adhesion part of the injection-molded bullet body.

3. The device for cutting a fracture groove of an injection molded elastic body according to claim 1, characterized in that: The upper cover (10) is mounted on the screw cover (11) for sealing and dustproofing.

4. The device for cutting a fracture groove of an injection molded elastomer according to claim 1, characterized in that: A handle ball (8) is provided at the end of the handle (9) for use as a hand grip point.

5. The device for cutting a fracture groove of an injection-molded elastic body according to claim 1, characterized in that: The elastic clamping opening of the bracket (4) is a notch extending from the through hole of the column to the side of the table top, and a pair of elastic clamping ears are arranged on the table top outside the notch.

6. The device for cutting a fracture groove of an injection-molded elastic body according to claim 1, characterized in that: The clamping ears are provided with threaded holes, and the tightness is adjusted by threading the elastic clamping ears.

7. The device for cutting a fracture groove of an injection-molded elastic body according to claim 1, characterized in that: The bracket (4) is provided with a main shaft through hole and a column through hole of 20 mm and 30 mm.

8. The device for cutting a fracture groove of an injection molded elastic body according to claim 7, characterized in that: The gear shaft (5) has a total length of 87 mm, a tooth length of 22 mm, a pitch circle diameter of 30 mm, and transmits the rotational power of the handle; the handle (9) is a column with a length of 125 mm and a diameter of 12 mm. This cutting tool is mainly powered by manually rotating the handle.

9. The device for cutting a fracture groove of an injection-molded elastic body according to claim 8, characterized in that: The column (13) is a column with a length of 240 mm and a diameter of 30 mm.

10. A method for using the device for cutting a fracture groove of an injection-molded elastic body according to any one of claims 1 to 9, characterized in that: The specific steps include: S1: Install the blade on the spindle in a cross shape; S2: Place the product to be cut on the positioning base (2) of the cutting tool to ensure it is in a vertical state; S3: Rotate the handle (9) to drive the main shaft (3) to move downward, so as to cut the adhesion of the injection molded parts; S4: Remove the product and complete one cutting.

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