CN212825820U

CN212825820U - Punching cutter for round hole of automotive PE film

Info

Publication number: CN212825820U
Application number: CN202020895658.4U
Authority: CN
Inventors: 胡余友; 唐润冰; 赖美君; 王厚冰
Original assignee: Wuhan Huasen Plastic Co ltd
Current assignee: Wuhan Huasen Plastic Co ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2021-03-30
Anticipated expiration: 2030-05-25

Abstract

The utility model discloses a die-cut cutter of round hole of automobile-used PE membrane, pop out the external member including cutter body and clout, cutter body has die-cut cutting edge for ring cylinder and its upper port, the clout pops out the external member and includes clout bullet needle, thimble spring, retaining member and locating part, clout bullet needle, thimble spring and retaining member set gradually in the cutter body inner chamber and clout bullet needle front end stretch out cutter body upper port from top to bottom, be equipped with the screw thread that matches each other on cutter body inner chamber wall and the retaining member outer wall respectively, be equipped with the mounting hole that runs through its offside and match with the locating part on the cutter body, clout bullet needle is the cylinder, be equipped with the spacing hole that runs through its offside on the clout bullet needle, the locating part sets up in the mounting hole and it passes. Its advantage lies in, can the auto-eject clout after accomplishing the round hole die-cut, avoids the clout to pile up in cutter body inner chamber, prevents cutter body jam, has saved the time that cutter dismantlement and clout cleared up, and whole cutter structure easily assembles and dismantles simultaneously.

Description

Punching cutter for round hole of automotive PE film

Technical Field

The utility model relates to an automobile door accessory processing equipment technical field especially relates to a die-cut cutter of round hole of automobile-used PE membrane.

Background

On the car door, in order to make PE membrane product and door panel beating laminate completely, need cut the appearance that makes its adaptation door panel beating to the PE membrane. When the round hole is die-cut, add ring cylinder cutter on cutting die usually, the lateral wall of this cutter is thinner, and the die-cut back of accomplishing of round hole, disk clout will fall into its inner chamber, very easily takes place to block up after the cutter long-term operation, and it is consuming time longer to dismantle the dimension guarantor and clear up the clout, and in addition, the extrusion of clout can make the cutter produce deformation even and change die-cut circularity, causes the error of die-cut round hole great, influences product quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art current situation, provide a die-cut cutter of round hole of automobile-used PE membrane, can the auto-eject clout after accomplishing the round hole die-cut, avoid the clout to pile up in cutter body inner chamber, whole cutter structure easily assembles and dismantles simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a round hole punching cutter for a PE film for a vehicle comprises a cutter body and a residual material ejecting external member, wherein the cutter body is a circular cylinder, the upper port of the cutter body is provided with a punching blade, the excess material ejecting kit comprises an excess material elastic needle, a thimble spring, a locking part and a limiting part, the excess material elastic needle, the thimble spring and the locking part are sequentially arranged in the inner cavity of the cutter body from top to bottom, the front end of the excess material elastic needle extends out of the upper port of the cutter body, the inner cavity wall of the cutter body and the outer wall of the locking part are respectively provided with threads matched with each other, the cutter body is provided with a mounting hole which runs through the opposite side of the cutter body and is matched with the limiting part, the residual material elastic needle is a cylinder, a limiting hole which runs through the opposite side of the residual material elastic needle is formed in the residual material elastic needle, the limiting part is arranged in the mounting hole and penetrates through the limiting hole, and the distance between the top surface of the limiting hole and the limiting part, the distance between the bottom surface of the residual material elastic needle and the upper end surface of the locking part are larger than the length of the front end of the residual material elastic needle extending out of the upper port.

Further, the diameter of clout bullet needle is less than the diameter of cutter body inner chamber, evenly is equipped with the mounting groove that the clout bullet needle generating line distributes along the clout bullet needle of at least three groups along circumference on the clout bullet needle lateral wall, includes two mounting grooves in every group mounting groove at least, still includes the globular ball the same with mounting groove quantity, size matching, and each ball all inlays between mounting groove cell wall and cutter body inner chamber wall.

Furthermore, the bottom surface of the residual material spring needle is provided with a positioning groove matched with the ejector spring, the upper end of the ejector spring is embedded into the positioning groove, and the upper end and the lower end of the ejector spring respectively abut against the bottom surface of the positioning groove and the upper end surface of the locking part.

Furthermore, the top surface of the excess material spring needle is a spherical surface.

Furthermore, the retaining member is a headless screw, and a linear screw socket is arranged on the lower end face of the retaining member.

Furthermore, the limiting part is strip-shaped, and the width of the limiting part is smaller than that of the limiting groove. .

The utility model has the advantages that:

compared with the prior art, the round hole punching cutter of the PE film for the automobile is additionally provided with the excess material ejecting kit in the cutter body, the excess material can be ejected automatically after the round hole punching is completed, the excess material is prevented from being accumulated in the inner cavity of the cutter body, the cutter body is prevented from being blocked, the time for disassembling the cutter and cleaning the excess material is saved, and the whole cutter is easy to assemble and disassemble.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of the cutter body of the present invention;

FIG. 4 is a schematic structural view of the excess material bullet needle of the present invention;

fig. 5 is a sectional view of the excess material bullet needle of the present invention.

Description of the labeling: 1. 1-1 parts of excess material spring pins, 1-2 parts of limiting holes, 1-3 parts of mounting grooves, 2 parts of positioning grooves, 2 parts of cutter bodies, 2-1 parts of mounting holes, 3 parts of ejector pin springs, 4 parts of ejector pin springs, 5 parts of locking parts, 6 parts of balls.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1-5, a circular hole punching tool for a PE film for a vehicle includes a tool body 2 and a remainder ejecting kit, wherein the tool body 2 is a circular cylinder and has a punching blade at an upper end thereof, and the tool body 2 is made of a metal material and has a thin wall thickness.

The clout pops out the external member and includes clout elastic needle 1, thimble spring 3, retaining member 5 and locating part 3, and clout elastic needle 1, thimble spring 3 and retaining member 5 set gradually in 2 inner chambers of cutter body and clout elastic needle 1 front end stretches out cutter body 2 and goes up the port from top to bottom, are equipped with the screw thread that matches each other on 2 inner chamber walls of cutter body and the 5 outer walls of retaining member respectively. After the excess material elastic needle 1 and the thimble spring 4 are sequentially arranged in the lower port of the cutter body 2, the locking piece 5 is screwed in, so that the lower port of the cutter body 2 is closed. The design avoids putting the excess material ejecting suite into the upper port of the cutter body 2, and prevents the punching blade from cutting an operator.

The cutting tool comprises a tool body 2 and is characterized in that a mounting hole 2-1 penetrating through the opposite side of the tool body and matched with a limiting piece 3 is formed in the tool body 2, a residual elastic needle 1 is a cylinder, a limiting hole 1-1 penetrating through the opposite side of the residual elastic needle 1 is formed in the residual elastic needle 1, and the limiting piece 3 is arranged in the mounting hole 2-1 and penetrates through the limiting hole 1-1. The limiting part 3 is used for preventing the thimble spring 4 from popping the residual thimble 1 out or preventing the residual thimble 1 from sliding out when the cutter body 2 is inverted. It is required to be limited that, when the thimble spring 4 is in a natural state, the distance between the top surface of the limiting hole 1-1 and the limiting part 3 and the distance between the bottom surface of the excess material elastic needle 1 and the top surface of the locking part 5 are both greater than the length of the front end of the excess material elastic needle 1 extending out of the upper port of the cutter body 2, so that the collision between the excess material elastic needle 1 and the limiting part 3 or the locking part 5 in the punching process is avoided.

The bottom surface of the residual material elastic needle 2 is provided with positioning grooves 1-3 matched with the thimble springs 4, the upper ends of the thimble springs 4 are embedded into the positioning grooves 1-3, and the upper ends and the lower ends of the thimble springs 4 respectively abut against the bottom surfaces of the positioning grooves 1-3 and the upper end surfaces of the locking parts 5. The positioning grooves 1-3 are used for limiting the transverse position of the thimble spring 4, and if the upper end and the lower end of the thimble spring 4 are staggered, the front end of the residual thimble 1 can not extend out of the upper port of the cutter body 2. The top surface of the excess material spring needle 1 is a spherical surface. When the round hole is punched, the contact surface of the excess material elastic needle 1 and the contact surface of the excess material of the wafer are smaller, so that the excess material of the wafer can slide down conveniently, and the excess material of the wafer can be prevented from staying on the excess material elastic needle 1.

Preferably, the locking part 5 is a headless screw, and a linear screw is arranged on the lower end face of the locking part 5. The headless screw does not change the appearance structure of the cutter body 2 on the basis of completely sealing the lower port of the cutter body 2. Preferably, the limiting member 3 is a strip, and the width of the limiting member 3 is smaller than the width of the limiting hole 1-1. The area of the end face of the strip-shaped limiting part 3 is larger, and the strip-shaped limiting part can be conveniently and rapidly placed in and taken out.

Referring to fig. 2 and 4, the diameter of the residual material spring needle 1 is smaller than the diameter of the inner cavity of the cutter body 2, at least three sets of mounting grooves 1-2 distributed along the generatrix of the residual material spring needle 1 are uniformly arranged on the side wall of the residual material spring needle 1 along the circumferential direction, the mounting grooves 1-2 shown in fig. 4 are 4 sets, each set of mounting grooves 1-2 at least comprises two mounting grooves 1-2, and the number of the mounting grooves 1-2 shown in fig. 4 is 2. The tool also comprises spherical balls 6 which are the same in quantity and size with the mounting grooves 1-2, and each ball 6 is clamped between the wall of the mounting groove 1-2 and the inner cavity wall of the tool body 2.

When the diameters of the excess material spring needle 1 and the inner cavity of the cutter body 2 are the same, friction exists between the excess material spring needle and the cutter body, and lubricant needs to be added for reducing the friction, but the lubricant can pollute the PE film. When the diameter of the excess material spring needle 1 is smaller than that of the inner cavity of the cutter body 2, a gap exists between the excess material spring needle 1 and the inner cavity of the cutter body 2, and the excess material spring needle 1 collides with the inner cavity of the cutter body.

The design increases the ball structure, not only eliminates the clearance, but also only has less friction between the residual material spring needle 1 and the inner cavity of the cutter body 2. During assembly, in the process of putting the excess material elastic needle 1 into the lower port of the cutter body 2, the ball 6 is put into the mounting groove 1-2 along with the mounting groove 1-2 gradually entering the inner cavity of the cutter body 2, so that the ball is clamped and embedded between the wall of the mounting groove 1-2 and the wall of the inner cavity of the cutter body 2.

After the round hole punching die is adopted, the punching processing process of the PE film is as follows: the PE film applies pressure to the excess material elastic needle 1 to enable the excess material elastic needle to be completely immersed into the inner cavity of the cutter body 2, the ejector pin spring 4 is compressed, the punching blade at the upper port of the cutter body 2 punches the PE film, a round hole is formed in the PE film, and wafer excess materials are generated; after the PE film is taken down, the thimble spring 4 is restored, so that the front end of the excess material thimble 1 extends out of the upper port of the cutter body 2 and the excess material of the wafer falls.

Compared with the prior art, the round hole punching cutter of the automobile PE film is additionally provided with the excess material ejecting kit in the cutter body 2, the excess material can be ejected automatically after the round hole punching is finished, the excess material is prevented from being accumulated in the inner cavity of the cutter body 2, the cutter body 2 is prevented from being blocked, the time for disassembling the cutter and cleaning the excess material is saved, and meanwhile, the whole cutter is easy to assemble and disassemble.

Of course, the above is only the preferred embodiment of the present invention, and the application range of the present invention is not limited thereto, so all the equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a die-cut cutter of round hole of automobile-used PE membrane which characterized in that: comprises a cutter body and a residual material ejecting kit, wherein the cutter body is a circular cylinder, the upper port of the cutter body is provided with a punching blade, the excess material ejecting kit comprises an excess material elastic needle, a thimble spring, a locking part and a limiting part, the excess material elastic needle, the thimble spring and the locking part are sequentially arranged in the inner cavity of the cutter body from top to bottom, the front end of the excess material elastic needle extends out of the upper port of the cutter body, the inner cavity wall of the cutter body and the outer wall of the locking part are respectively provided with threads matched with each other, the cutter body is provided with a mounting hole which runs through the opposite side of the cutter body and is matched with the limiting part, the residual material elastic needle is a cylinder, a limiting hole which runs through the opposite side of the residual material elastic needle is formed in the residual material elastic needle, the limiting part is arranged in the mounting hole and penetrates through the limiting hole, and the distance between the top surface of the limiting hole and the limiting part, the distance between the bottom surface of the residual material elastic needle and the upper end surface of the locking part are larger than the length of the front end of the residual material elastic needle extending out of the upper port.

2. The round hole punching tool for the PE film for vehicles according to claim 1, characterized in that: the diameter of clout bullet needle is less than the diameter of cutter body inner chamber, evenly is equipped with the mounting groove that the clout bullet needle generating line distributes along three at least groups along clout bullet needle along circumference on the clout bullet needle lateral wall, includes two mounting grooves in every group mounting groove at least, still includes the globular ball the same with mounting groove quantity, size matching, and each ball all inlays between mounting groove cell wall and cutter body inner chamber wall.

3. The round hole punching tool for the PE film for vehicles according to claim 1, characterized in that: the bottom surface of the residual material spring needle is provided with a positioning groove matched with the ejector spring, the upper end of the ejector spring is embedded into the positioning groove, and the upper end and the lower end of the ejector spring respectively abut against the bottom surface of the positioning groove and the upper end surface of the locking part.

4. The round hole punching tool for PE films for vehicles according to claim 1 or 3, characterized in that: the top surface of the excess material spring needle is a spherical surface.

5. The round hole punching tool for the PE film for vehicles according to claim 1, characterized in that: the retaining member is a headless screw, and a linear screw socket is arranged on the lower end face of the retaining member.

6. The round hole punching tool for the PE film for vehicles according to claim 1, characterized in that: the limiting part is strip-shaped, and the width of the limiting part is smaller than that of the limiting groove.