Tapping device for drainage corrugated pipe

Abstract

The utility model relates to a perforating device for drainage bellows, which comprises a workbench and a guide plate, the guide plate is vertically and fixedly mounted at the end of the workbench, a plurality of perforating assemblies are mounted on the outer wall of the guide plate, guide holes are formed in the outer wall of the guide plate, the perforating assemblies are mounted around the guide holes, and the guide holes are communicated with the perforating assemblies. The guide assembly comprises a cutting piece and an air cylinder, the cutting piece is driven by the air cylinder and composed of four blades and a back plate, and the output end of the air cylinder faces the cutting piece. A needle head is fixedly installed at the output end of the air cylinder, a penetrating hole is formed in the outer wall of a back plate in the cutting piece, when the needle head pierces into the outer wall of the corrugated pipe, the outer wall of the corrugated pipe can be expanded due to the size of the needle head, and after the needle head is separated from the outer wall of the corrugated pipe in the cutting piece, the outer wall of the corrugated pipe made of the plastic material can automatically contract the part expanded by the needle head. Therefore, the cutting piece is small in size, then separated from the inner wall of the cutting piece and automatically falls off.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated pipe production, in particular to a hole opening device for drainage corrugated pipes. Background Art

[0002] In order to facilitate ventilation and remove foreign matter, a hole is opened on the outer wall of the corrugated pipe for underground drainage. In order to facilitate the opening of the hole on the production line, an iron box-shaped cutting piece is generally used to directly cut a rectangular hole on the outer wall. Since the corrugated pipe is made of plastic, the surface friction is relatively large. After being cut, it will be retained inside the box-shaped cutting piece, and the operator needs to manually peel it off, which will affect the progress of the hole opening. In addition, the cutting end of the cutting piece is relatively sharp and can easily cut the operator. Utility Model Content

[0003] The purpose of the present application is to provide a hole opening device for a drainage bellows to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] A hole-opening device for drainage corrugated pipes, comprising a workbench and a guide plate, wherein the guide plate is vertically fixedly mounted on the end of the workbench, a plurality of hole-opening assemblies are mounted on the outer wall of the guide plate, a guide hole is formed on the outer wall of the guide plate, a plurality of hole-opening assemblies are mounted around the guide hole, the hole-opening assembly comprises a cutting piece and a cylinder, the cutting piece is driven by the cylinder, the cutting piece is composed of four blades and a back plate, the back plate is a rectangular iron metal plate, the four blades are vertically fixedly mounted on the edge of the back plate, and the cutting ends of the blades face the guide hole of the guide plate. A motor is fixedly mounted on the table top of the workbench, the output end of the motor faces upward, a guide column is fixedly mounted on the output end of the motor, a circle of grooves is formed on the outer wall of the guide column, and the curvature of the groove corresponds to the curvature of the guide hole in the guide plate.

[0006] Preferably, a fixing plate is provided at the upper and lower ends of the cutting piece, a slide groove is provided on the outer wall of the fixing plate, and magnetic blocks are fixedly installed at the upper and lower ends of the cutting piece, and the magnetic blocks are fixed by adsorption to the inside of the slide groove of the fixing plate. The cylinder is installed on the side of the cutting piece away from the guide hole in the guide plate, and the cylinder is fixedly connected to the outer wall of the guide plate, and the output end of the cylinder faces the cutting piece. A needle is fixedly installed at the output end of the cylinder, and a perforation is provided on the outer wall of the back plate in the cutting piece, and the perforation corresponds to the installation position of the needle. A magnetic plate is fixedly installed at the end of the needle away from the cutting piece, and the magnetic plate is disc-shaped, and the diameter of the magnetic plate is larger than the diameter of the perforation.

[0007] The beneficial effect of the utility model is that by providing a needle and a cutting piece, when the needle is separated from the part of the outer wall of the corrugated tube inside the cutting piece, the cut part of the outer wall of the corrugated tube will fall from the cutting piece due to volume shrinkage, because when the needle pierces the outer wall of the corrugated tube, it will expand the outer wall of the corrugated tube due to its own volume. When the needle is separated from the outer wall of the corrugated tube inside the cutting piece, the outer wall of the corrugated tube made of plastic will automatically shrink the part expanded by the needle, so that the volume is smaller and then separated from the inner wall of the cutting piece, thereby automatically falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0009] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0010] Figure 3 The structure of the opening component in the utility model is shown as follows Figure 1 ;

[0011] Figure 4 The structure of the opening component in the utility model is shown as follows Figure 2 .

[0012] In the figure: 1. workbench; 2. guide plate; 3. cylinder; 4. cutting piece; 5. motor; 6. guide column; 7. needle; 8. magnetic plate; 9. fixing plate; 10. magnetic block; 11. punching hole. DETAILED DESCRIPTION

[0013] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more specific definition of the protection scope of the present invention. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only for reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, rather than to limit the present invention.

[0014] like Figure 1-4The hole-opening device for drainage corrugated pipe shown in the figure comprises a workbench 1 and a guide plate 2, wherein the guide plate 2 is vertically fixedly mounted at the end of the workbench 1, a plurality of hole-opening assemblies are mounted on the outer wall of the guide plate 2, a guide hole is formed on the outer wall of the guide plate 2, and the plurality of hole-opening assemblies are mounted around the guide hole, and the hole-opening assemblies comprise a cutting member 4 and a cylinder 3, wherein the cutting member 4 is driven by the cylinder 3, and the cutting member 4 is composed of four blades and a back plate, wherein the back plate is a rectangular iron metal plate, and the four blades are vertically fixedly mounted on the edges of the back plate, respectively, and the cutting ends of the blades face the guide hole of the guide plate 2. A motor 5 is fixedly mounted on the table top of the workbench 1, and the output end of the motor 5 faces upward, and a guide column 6 is fixedly mounted on the output end of the motor 5, and a circle of grooves is formed on the outer wall of the guide column 6, and the curvature of the groove corresponds to the curvature of the guide hole in the guide plate 2.

[0015] The upper and lower ends of the cutting piece 4 are fitted with fixing plates 9, and a slide groove is provided on the outer wall of the fixing plate 9. The upper and lower ends of the cutting piece 4 are fixedly installed with magnetic blocks 10, which are fixed by adsorption inside the slide groove of the fixing plate 9. The cylinder 3 is installed on the side of the cutting piece 4 away from the guide hole in the guide plate 2, and the cylinder 3 is fixedly connected to the outer wall of the guide plate 2, and the output end of the cylinder 3 faces the cutting piece 4. The output end of the cylinder 3 is fixedly installed with a needle 7, and the outer wall of the back plate of the cutting piece 4 is provided with a through hole 11, and the through hole 11 corresponds to the installation position of the needle 7. The end of the needle 7 away from the cutting piece 4 is fixedly installed with a magnetic plate 8, and the magnetic plate 8 is disc-shaped, and the diameter of the magnetic plate 8 is larger than the diameter of the through hole 11.

[0016] Embodiment: The bellows passes through the guide hole of the guide plate 2, and the motor 5 is provided in two groups and symmetrically fixedly installed on both sides of the guide hole, so that the two guide columns 6 clamp the bellows from both sides, and the motor 5 drives the guide columns 6 to rotate, driving the bellows forward. At the same time, the hole-opening assembly is started, the cylinder 3 extends out of the output end, so that the needle 7 passes through the perforation 11. After the needle 7 completely passes through the perforation 11, the magnetic plate 8 is adsorbed on the back plate of the cutting piece 4, and the cylinder 3 continues to extend out of the output end, driving the magnetic blocks 10 at the upper and lower ends of the cutting piece 4 to separate from the slide groove of the fixed plate 9. Then the needle 7 pierces the outer wall of the corrugated tube, and the cutting end of the cutting piece 4 extends into the outer wall of the corrugated tube to make a hole in the outer wall of the corrugated tube. The cut part of the outer wall of the corrugated tube, because it is pierced by the needle 7, will be taken out together when the cylinder 3 recycles the output end. Then the cylinder 3 continues to recycle the output end, and the magnetic blocks 10 at the upper and lower ends of the cutting piece 4 return to the inside of the slide groove of the fixed plate 9, so that the cutting piece 4 cannot continue to move backward. The cylinder 3 continues to recycle the output end so that the needle 7 is separated from the cut part of the outer wall and the cutting piece 4, and the magnetic plate 8 is also separated from the cutting piece 4 due to the pulling force of the cylinder 3. In this way, part of the outer wall of the corrugated tube inside the cutting piece 4 automatically falls from the cutting piece 4. After falling, it is recovered by the operator and re-melted into corrugated pipe raw materials.

[0017] When the needle 7 is separated from the part of the outer wall of the bellows inside the cutting piece 4, the cut part of the outer wall of the bellows will fall from the cutting piece 4 due to the reduction in volume. This is because when the needle 7 pierces the outer wall of the bellows, it will expand the outer wall of the bellows due to its own volume. When the needle 7 is separated from the outer wall of the bellows, the outer wall of the bellows made of plastic will automatically shrink the part expanded by the needle 7, so that the volume is smaller and then separated from the inner wall of the cutting piece 4, thereby automatically falling off.

[0018] It should be noted that the parts not covered in the present invention are the same as the prior art or can be implemented by the prior art; the various drives in the present invention can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, motors, etc. in combination with connecting rods, guide rods, etc., and are not limited to the description in the specification and the structures in the drawings.

[0019] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A hole-opening device for a drainage corrugated pipe, comprising a workbench (1) and a guide plate (2), characterized in that: The guide plate (2) is vertically fixedly mounted on the end of the workbench (1); a plurality of groups of hole opening components are mounted on the outer wall of the guide plate (2); a guide hole is opened on the outer wall of the guide plate (2); a plurality of groups of hole opening components are mounted around the guide hole; the hole opening component comprises a cutting piece (4) and a cylinder (3); the cutting piece (4) is driven by the cylinder (3); the cutting piece (4) comprises four blades and a back plate; the back plate is a rectangular iron metal plate; the four blades are respectively vertically fixed on the edges of the back plate; the cutting ends of the blades face the guide hole of the guide plate (2).

2. The hole-opening device for drainage corrugated pipe according to claim 1, characterized in that: The upper and lower ends of the cutting member (4) are fitted with fixing plates (9), the outer wall of the fixing plate (9) is provided with a slide groove, the upper and lower ends of the cutting member (4) are fixedly mounted with magnetic blocks (10), the magnetic blocks (10) are fixedly adsorbed and fixed to the inside of the slide groove of the fixing plate (9), the cylinder (3) is mounted on a side of the cutting member (4) away from the guide hole in the guide plate (2), the cylinder (3) is fixedly connected to the outer wall of the guide plate (2), and the output end of the cylinder (3) faces the cutting member (4).

3. The hole-opening device for drainage corrugated pipe according to claim 2, characterized in that: A needle (7) is fixedly mounted on the output end of the cylinder (3), and a through hole (11) is formed on the outer wall of the back plate of the cutting member (4), wherein the through hole (11) corresponds to the mounting position of the needle (7).

4. The hole-opening device for drainage corrugated pipe according to claim 3, characterized in that: A magnetic plate (8) is fixedly mounted on one end of the needle (7) away from the cutting member (4); the magnetic plate (8) is disc-shaped, and the diameter of the magnetic plate (8) is greater than the diameter of the perforation (11).

5. The hole-opening device for drainage corrugated pipe according to claim 1, characterized in that: A motor (5) is fixedly mounted on the table top of the workbench (1), the output end of the motor (5) facing upwards, a guide column (6) is fixedly mounted on the output end of the motor (5), and a circle of grooves is formed on the outer wall of the guide column (6), the curvature of the grooves corresponding to the curvature of the guide holes in the guide plate (2).

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