TWM618450U - Forming mold structure of internally forced expansion anchor - Google Patents

Abstract

This creation discloses a molding die, which includes a body, a punching cylinder and a cross punching piece. The center of the main body is provided with a through hole for inserting the punching cylinder, and the cross punching piece is embedded in the lower edge of the punching cylinder. The blank material can enter through the through hole of the punching cylinder, and is pressed by the punching equipment to form a cross-shaped groove with a predetermined depth at one end of the blank material.

Description

Forming die structure of internally forced expansion anchor

This creation is related to a forming mold, especially a mold structure for manufacturing an internally forced expansion anchor.

Please refer to the internally forced expansion anchor structure shown in Figures 1 and 2. An internally forced expansion anchor 10 has a locking end 11 at one end and a plug-in end 12 at the other end. 12 is extended with a plurality of slits 13, so that the inserting end 12 is divided into a plurality of petals 14; the expansion anchor body 10 is hollow, and a section of internal thread 15 extends inward from the locking end 11, and the adjacent inner The oblique taper hole 16 next to the thread 15 is tapered toward the plug end 12.

During implementation, a hole is drilled on a wall surface for the insertion end 12 of the expansion anchor body 10 to penetrate, and then a tapered block A is inserted from the locking end 11 so that it is clamped in front of the oblique taper hole 16 Since the surface of the cone block A has a cone surface that matches the oblique cone hole 16, a jig can be used to push the cone block A, and the cone block A can be pushed forward, so that the several petals 14 are generated. The outward expansion deforms to achieve that the petals 14 expand and bite into the hole, and the expansion anchor body 10 is embedded in the wall surface. The internal thread 15 in the locking end 11 can be used for the anchor bolt to lock, thereby completing Installation and use of the internally forced expansion anchor.

However, it is found that during the manufacture of the aforementioned internally forced expansion anchor bolt, a blank is taken to form a hollow tube body through multiple punching methods, and an oblique taper hole 16 is punched out of the tube body, and then the internal thread 15 is tapped. Then, a cross-shaped slit 13 is cut by sawing, so that one end is divided into a plurality of petals 14. Therefore, in the manufacturing process of the aforementioned internally forced expansion anchor, two processes of stamping and sawing are used. On the one hand, the manufacturing process is inconsistent and causes the trouble of program separation. The cross-shaped slot 13 needs to be used twice. The sawing method is relatively time-consuming and labor-intensive, which is not conducive to the quantification of the product.

In order to overcome the aforementioned defects in the manufacture of the internally forced expansion anchors, the creator of this case developed a new manufacturing method, which implements a blank material into a single material, positioning, cross groove extrusion molding, punching large holes and tails, and punching small parts. Holes, chipping, forming taper holes, forming internal teeth, etc. The main essence of these steps is that the cross groove squeezing forming step punches the blank material with a cross-shaped groove of a predetermined depth, so that the subsequent steps are carried out. When the time, the finished product of the internally forced expansion anchor is gradually completed. Through the above-mentioned method for manufacturing the internally forced expansion anchor, the blank is gradually formed into the internally forced expansion anchor by stamping technology, especially after the cross groove extrusion molding step, the blank is formed into a cross of a predetermined depth inward The shape of the groove, clever use of the deformation of the material, makes the blank form a cross-shaped groove. After the finished product of the expansion anchor is completed, the cross-shaped groove is formed into a cross-sectional groove, so that one end of the hollow expansion anchor is separated Into plural petals. Therefore, the molding method does not need to use sawing to form the petals, but is achieved by a continuous stamping method, so that it can complete the production of the internally forced expansion anchor under a continuous stamping step. Helps improve the efficiency of product manufacturing.

For the cross groove extrusion forming step in the foregoing manufacturing method, a special punch must be used to facilitate the completion of the cross groove forming of the material. In order to achieve the above purpose, the specific method in this case is: a mold structure, including a body, a punch It is composed of a tube and a cross punch. The body has a base, the upper end of the base is provided with an upper cylinder, the lower end is provided with a lower cylinder, a through hole penetrates the upper cylinder, the base and the lower cylinder of the body, and the upper edge of the through hole forms a cone-shaped hole . The punch barrel is a cone-shaped column and fits the cone-shaped hole of the main body. The punch barrel is provided with a through hole in the center, and a cross-shaped slit is provided on the lower end edge of the punch barrel. The cross punch piece It can be put into the cut groove of the punching cylinder. Thereby, the punch can be placed in the cone-shaped hole of the main body, and the blank can enter through the through hole of the punch, and under the pressure of the punching equipment, one end of the blank can form a cross-shaped groove with a predetermined depth.

The technical content, features and effects of the present invention will be clearly presented in the following detailed description of the preferred embodiments with reference to the drawings. In addition, before the case is described in detail, special explanation is needed. The attached drawings illustrate the basic structure of the case in a schematic way. Therefore, only the structures or elements related to the case are shown in the drawings, and the structural shapes are shown. , Size, ratio, or number of components, etc., are a kind of optional design; it is stated first.

Please refer to Fig. 3 to Fig. 5 for the structural diagrams of specific embodiments of this case. The main purpose of this creation is to provide a mold structure including a main body 20, a punch 30, and a cross punch 40; among them:

The main body 20 has a base 21, which can be fixed on the punching machine by the anchor bolt passing through the base 21; 24 penetrates the upper cylinder 22, the base 21 and the lower cylinder 23 of the main body 20, and the upper edge of the through hole 24 forms a cone-shaped hole 241.

The punch 30 is a cone-shaped column and fits the cone-shaped hole 241 of the main body 20. A through hole 31 is provided in the center of the punch 30, and a cross-shaped cross-section is provided at the lower edge of the punch 30. Slot 32.

The cross punching piece 40 is a cross-shaped piece body, which can be inserted into the slit 32 of the punching cylinder 30.

Please refer to FIG. 6 for a schematic diagram of the mold operation of the present case. With the structure of the above-mentioned components, the cross punch 40 is inserted into the slot 32 of the punch cylinder 30, and is placed in the tapered hole 241 of the main body 20. , The through hole 31 of the punch cylinder 30 is exposed on the end surface of the cylinder 22 on the body 20; the anchor bolt penetrates the lock base 21 so that the body 20 is fixed on the punching machine, and a blank 50 can be formed by the through hole 31 of the punch cylinder. When entering, the blank 50 is forced to squeeze and deform under the pressure of the punch of the punching equipment, and through the action of the cross punch 40, the force end of the blank 50 forms a cross-shaped groove with a predetermined depth, and then Achieve the steps required for the mold to be formed.

The excellent features that can be produced according to the above-mentioned structural design of the present case are summarized as follows: According to the structure of the above-mentioned mold, when the blank 50 is pressed by the punching equipment, the cross punching piece 40 forms a cross-shaped groove at one end of the blank 50 After the stamping and forming of the subsequent manufacturing steps, it cleverly utilizes the deformation of the material, so that the cross-shaped groove of the blank 50 is gradually formed into a slit, so that the expansion anchor does not need to be sawed to form the petals. , But to achieve the purpose of forming by a continuous stamping method, so that it can be in a continuous stamping step , To complete the manufacture of the internally forced expansion anchor, which will help to improve the efficiency of product manufacturing.

In summary, according to the structural design of this creation, the purpose of creation can be achieved. However, the structural content of the above elements is only used to explain the preferred embodiment of this creation, and is not a restriction on the structure of this creation. Therefore, wherever there is Equivalent modifications or changes made under the same spirit should still be included in the scope of protection of this creation. From the above, the creation system of this case has many advantages and significant practical characteristics, and the technical means and structural features used by it are indeed developed by the creator of this case. The structure is even more unseen in the world. Since this case has met the requirements of the patent, Yan filed an application in accordance with the law and prayed for the patent right.

"Learning part" 10: Internally forced expansion anchor 11: Lock in the end 12: Insert the end 13: cut groove 14: flap 15: Internal thread 16: Oblique cone hole A: Cone block "Part of the case" 20: body 21: Pedestal 22: Upper cylinder 23: Lower cylinder 24: Through hole 241: Conical hole 30: Punch 31: Through hole 32: cut groove 40: Cross punch 50: blank

Figure 1 shows the three-dimensional structure diagram of the conventional internally forced expansion anchor; Figure 2 shows the cross-sectional structure diagram of the conventional internally forced expansion anchor; Figure 3 shows the top three-dimensional structure diagram of this creation; Shows the bottom view of the three-dimensional structure of this creation; Figure 5 shows the cross-sectional structure of this creation; Figure 6 shows the schematic diagram of the operation of this creation.

20: body

21: Pedestal

22: Upper cylinder

23: Lower cylinder

24: Through hole

30: Punch

31: Through hole

32: cut groove

40: Cross punch

Claims (1)

A forming die structure of an internally forced expansion anchor, which includes a body, a punching cylinder and a cross punch; the body has a base, and the body can be fixed on the punching machine by the anchor bolt penetrating the base; the The upper end of the base is provided with an upper cylinder, and the lower end is provided with a lower cylinder. A through hole penetrates the upper cylinder, the base and the lower cylinder of the body, and the upper edge of the through hole forms a cone-shaped hole; the punch cylinder is a Cone-shaped cylinder, which is consistent with the cone-shaped hole of the main body, the center of the punch barrel is provided with a through hole, and the lower end of the punch barrel is provided with a cross-shaped slit; the cross punch is a cross-shaped piece The body, which can be inserted into the cut-out groove of the punching cylinder; thereby, the cross punching piece can be inserted into the cut-out groove of the punching cylinder, and the punching cylinder can be placed in the cone-shaped hole of the body , The through hole of the punch barrel is exposed on the end surface of the cylinder on the body, a blank can be entered from the through hole of the punch, and the punch is pressed by the punch of the punching equipment, so that one end of the blank forms a cross-shaped groove with a predetermined depth groove.

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