CN209831840U

CN209831840U - Accurate perforating device of hose

Info

Publication number: CN209831840U
Application number: CN201920430025.3U
Authority: CN
Inventors: 高进
Original assignee: SHANGHAI YINGQI PRECISE PARTS MANUFACTURE CO Ltd
Current assignee: SHANGHAI YINGQI PRECISE PARTS MANUFACTURE CO Ltd
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2019-12-24
Anticipated expiration: 2029-04-01

Abstract

The utility model relates to an accurate perforating device of hose, including the direction clamp plate subassembly that is used for the location hose, with the mechanism of punching of direction clamp plate subassembly complex, and insert the intraductal plug that supports it of hose, the top surface of direction clamp plate subassembly is opened there is one row of cutter drift guiding hole, install in the cutter drift guiding hole when punching the mechanism use, the mechanism of punching includes the cutter drift, carry out spacing position sleeve to the motion of cutter drift, unloading stick and hammer cover, the cutter drift is hollow pipe, the lower extreme of cutter drift is equipped with sharp cyclic annular edge of a knife, the outside of cutter drift is located to the position sleeve cover, the inside of cutter drift is located in the activity of unloading stick, the upper end of cutter drift is located to the hammer cover. Compared with the prior art, the device has the advantages that the sharp edge of the cutter punch is used for opening the holes on the hose in a cutting mode, so that smooth and regular round holes can be obtained, and turbulent flow are greatly reduced.

Description

Accurate perforating device of hose

Technical Field

The utility model relates to a perforating device, concretely relates to accurate perforating device of hose.

Background

In the process of processing the soft hose, small holes with shape and size requirements are sometimes required to be punched on the wall of the soft hose. For example, a group of through holes with the diameter of less than 3 mm are drilled on a rubber hose with the pipe diameter of less than 20 mm and the wall thickness of less than 2 mm, but it is very difficult to drill a group of round holes with the precision requirement on the soft hose, especially the pipe diameter of less than 8 mm.

The common method is to punch the tube wall through a concave-convex die punching mode or drill the hole through a drill bit after the hose is pinched flat. In the prior art, when holes are punched on the wall of a hose, regular round holes with precision cannot be obtained. The female die cannot be placed in the hose to perform single-layer pipe wall punching due to the fact that the inner diameter of the hose is too small and the processed row holes have a certain length, the hose can be flattened into a double-layer pipe wall by a conventional punching male-female die structure, the double-layer pipe wall is punched by a punch at one time, and the material at the joint of the two layers of pipe walls is in an irregular tearing state, so that the precision of regular round holes and apertures cannot be guaranteed; even if the drill bit is used to drill a hole in a soft material, the material to be removed cannot be completely cut off, and the result is even worse. The flexible pipe is perforated on the wall of the flexible pipe, is mostly applied to occasions needing to dispersedly convey gas or liquid, has strict requirements on the total area of the row holes and the shape and uniformity of the sprayed gas and liquid under certain specific conditions, and is difficult to meet by adopting the prior art for processing.

Patent CN205735260U discloses a hose perforating device, including press (1), mould (6) and backing plate (7) and support (8) punch, mould (6) one end of punching is passed through mould installation department (61) fixed mounting on mould fixing base (5) on press (1), and the other end is mould tool-point portion (66), actuating mechanism (4) on press (1) make mould (6) punch for backing plate (7) linear motion from top to bottom, backing plate (7) support on press (1) through support (8), set up through-hole (2) that supply mould tool-point portion (66) to pass on backing plate (7), through-hole (2) and the one-to-one between mould (6) of punching, however the device can not satisfy the accuracy requirement of punching.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an accurate perforating device of hose in order to solve above-mentioned problem.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides an accurate perforating device of hose, including the direction clamp plate subassembly that is used for the location hose, with direction clamp plate subassembly complex mechanism of punching and insert the intraductal plug that supports to it of hose, the top surface of direction clamp plate subassembly is opened there is one row of cutter drift guiding hole, install in cutter drift guiding hole when punching the mechanism and using, the mechanism of punching includes the cutter drift, carries out spacing position sleeve, unloading stick and hammer cover to the motion of cutter drift, the cutter drift is hollow pipe, the lower extreme of cutter drift is equipped with sharp cyclic annular edge of a knife, the outside of cutter drift is located to the position sleeve cover, the inside of cutter drift is located in the activity of unloading stick, the upper end of cutter drift is located to the hammer cover. When the cutting device is used, the core rod is inserted into the hose, the diameter of the core rod is smaller than the inner diameter of the hose, the cutter punch is radially aligned with the circle center of the hose and is pressed down from the outside of the pipe wall until the cutter edge of the punch is pressed into the core rod, and a round hole which is the same as the inner circle of the punch is formed in the pipe wall.

Furthermore, the annular knife edge is conical, the taper is less than 20 degrees, and the punching diameter of the annular knife edge is the same as the diameter of the round hole to be processed.

Furthermore, the upper end of the outer cylinder of the cutter punch is thick, the lower end of the outer cylinder of the cutter punch is thin, a stepped plane is formed between the upper end and the lower end of the outer cylinder of the cutter punch, and the upper end face of the positioning sleeve is in contact with the stepped plane to limit the punching stroke of the cutter punch.

Furthermore, the locating sleeve is in a hollow tubular shape, the inner diameter of the locating sleeve is matched with the outer diameter of the cutter punch, the lower end face of the locating sleeve is in contact with the guide pressure plate assembly, and the length of the locating sleeve is determined according to the cutting depth of the cutter punch.

Further, the unloading rod is an L-shaped steel wire rod with a right-angle bend, the diameter of the unloading rod is smaller than the inner diameter of the cutter punch, and the bent portion extends out of the cutter punch through an opening formed in the cutter punch.

Furthermore, the hammer cover is cylindrical, an inner circle blind hole is formed in the lower end of the hammer cover, the blind hole is installed in a matched mode with the cutter punch, and the upper end of the hammer cover is a plane.

Furthermore, the guide pressure plate assembly comprises an upper guide pressure plate and a lower guide pressure plate, an upper semicircular groove with the same outer diameter as the hose is formed in the bottom surface of the upper guide pressure plate, a lower semicircular groove corresponding to the upper semicircular groove is formed in the bottom surface of the lower guide pressure plate, and the upper semicircular groove and the lower semicircular groove are combined to form a cylindrical positioning cavity for placing the hose.

Furthermore, a row of semicircular grooves with the same outer diameter as the cutter punch are formed in the side faces of the upper guide pressing plate and the lower guide pressing plate, and when the upper guide pressing plate and the lower guide pressing plate are combined, positioning guide holes of the cutter punch are formed.

Furthermore, the core rod is made of a soft material with hardness higher than that of the rubber hose, and is a round rod with equal diameter, and the diameter of the round rod is smaller than the inner diameter of the rubber hose.

Further, the core rod is a nylon core rod.

The utility model discloses concrete theory of operation does: the punching end of the cutter punch is provided with a sharp annular knife edge, the inner diameter of an inner circle is equal to the aperture of a hole to be punched, the outer circular surface is in a conical shape with the angle smaller than 20 degrees from the annular knife edge end upwards so as to ensure that the working part of the annular knife edge has enough strength, the annular knife edge is pressed down along the diameter direction of the hose wall during punching, the material with the hole is cut by the annular knife edge, when the annular knife edge is pressed into the surface of the nylon core rod in a micro-amount, the hose hole waste is completely separated from the hose, the waste is retained in the circular hole of the punch, the punch lifts away from the hose wall and takes the waste out, the punching process is completed, and the annular knife edge of the punch is very sharp, so that a smooth and regular; arranging an unloading core rod in an inner hole of the punch head, and ejecting the waste material by using the unloading core rod every time the punching is finished; when the device works, the hose inserted into the nylon core rod is placed into a punching clamp, a group of punch guide holes are formed in the punching clamp, and the punches are arranged into the guide holes and can be processed on a punch press or a squeeze riveter; because the annular knife edge is adopted for cutting and forming the hole, the hole wall is smooth and has no burrs and pressure angle faces, and the turbulence and flow disturbance phenomena when gas and liquid flow out are greatly reduced.

Compared with the prior art, the utility model has the advantages that:

(1) the utility model discloses simple structure, it is convenient to maintain and adjust, and general operation personnel can operate.

(2) The hose is perforated by utilizing the sharp edge of the cutter punch in a cutting mode, so that smooth and regular round holes can be obtained.

(3) The utility model discloses can open regular and glossy round hole on the hose, consequently the turbulent flow and the sinuous flow that significantly reduce when carrying the gas-liquid have played good effect to some occasions that need evenly carry or fix a position and carry the gas-liquid fluid.

(4) The utility model discloses can be according to different pipe diameters and wall thickness to and trompil diameter and quantity, design corresponding direction anchor clamps and cutter drift specification, when the trompil quantity is more, one-time processing completion on the punch press can use a plurality of cutter drifts, and production efficiency is higher.

Drawings

Fig. 1 is a schematic perspective view of the device of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4;

reference numbers in the figures: 1-upper guide pressure plate, 2-lower guide pressure plate, 3-hose, 4-core rod, 5-cutter punch, 6-positioning sleeve, 7-discharging rod, 8-hammer cover, 9-cutter punch guide hole, 10-positioning guide hole and 11-annular knife edge.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Examples

Referring to fig. 1-4, an accurate punching device for a hose is composed of an upper guide pressure plate 1, a lower guide pressure plate 2, a nylon core rod 4, a cutter punch 5, a positioning sleeve 6, a discharging rod 7 and a hammer cover 8, and referring to fig. 5, an annular knife edge 11 is arranged at the lower end of the cutter punch 5. Wherein, the bottom surface of the upper guide pressure plate 1 is provided with a semicircular groove with the same outer diameter as the hose 3 for positioning the hose 3 in the groove, and the top surface corresponding to the bottom surface is provided with a row of cutter punch guide holes 9 which are vertically penetrated and pass through the center of the semicircular groove of the bottom surface; the structure of the lower guide pressing plate 2 is the same as that of the upper guide pressing plate 1, the cutter punch guide holes 9 can be symmetrically arranged with the guide holes of the upper guide pressing plate 1 according to requirements, the semicircular groove surfaces of the upper guide pressing plate 1 and the lower guide pressing plate 2 are attached and installed to position and compress the hose 3, a row of semicircular grooves with the same outer diameter as that of the cutter punch 5 can be arranged on the two side surfaces of the upper guide pressing plate 1 and the lower guide pressing plate 2 according to the punching requirement, and when the upper guide pressing plate 1 and the lower guide pressing plate 2 are combined, the positioning guide holes 10 of the cutter punch 5 are formed; the excircle of the nylon core rod 4 is an equal-diameter round rod, the diameter of the nylon core rod is slightly smaller than the inner diameter of the hose 3 so as to be conveniently inserted into an inner hole of the hose 3, the nylon core rod 4 is used for supporting the hose 3 to be free from diameter change in the punching process and limiting the annular knife edge 11 of the cutter punch 5, and the hardness of the nylon core rod 4 is greatly higher than that of the hose 3, so that punching waste materials of the hose 3 can be completely separated when the annular knife edge 11 is pressed to the nylon surface; the cutter punch 5 is in a hollow pipe shape, one end of the hollow pipe is in a circular sharp annular knife edge 11, the hose 3 can be punched into a small round hole, the diameter of the circular annular knife edge 11 is the same as that of the inner circle of the hollow pipe, the circular annular knife edge 11 and the outer circle are in a conical shape with the angle smaller than 20 degrees, so that the punching working part of the circular knife edge 11 has enough strength, a step plane is arranged on the outer circle of the hollow pipe, the step plane is in contact with one end face of the positioning sleeve 6 and used for limiting the punching stroke of the cutter punch 5, and the other end of the hollow pipe is in contact with the hammer cover 8 and used for protecting the cutter punch 5 when being; the positioning sleeve 6 is in a hollow tubular shape, the inner diameter of the positioning sleeve is matched with the outer diameter of the cutter punch 5, one end face of the positioning sleeve is in contact installation with the stepped plane of the cutter punch 5, the other end face of the positioning sleeve is in contact installation with the upper surface of the upper guide pressure plate 1, the length of the positioning sleeve 6 is determined according to the depth of the annular knife edge 11 of the cutter punch 5, which is cut into the surface of the nylon core rod 4, the depths of the annular knife edge 11 of the hoses 3 with different hardness, which are cut into the nylon core rod 4, are different, so; the discharging rod 7 is a steel wire rod with right-angle bending, the diameter of the discharging rod is slightly smaller than the inner hole of the cutter punch 5, the bent part extends out of the cutter punch 5, and the round hole waste of the hose 3 left in the annular knife edge 11 can be pushed out by applying force to the bent part by fingers; one end of the hammer cover 8 is an inner round blind hole which is matched with the cutter punch 5, and the other end of the hammer cover is a plane which is used for protecting the cutter punch 5 when the cutter punch 5 is pressurized or beaten during punching.

During punching, a nylon core rod 4 is inserted into an inner hole of a hose 3, the length is determined according to the length formed by punching the number of holes to be punched in one-step clamping, the hose 3 inserted into the nylon core rod 4 is placed into an arc groove of a lower guide pressure plate 2, the arc groove of the upper guide pressure plate 1 is aligned with the outer circle of the hose 3 and is placed, the upper guide pressure plate 1 and the lower guide pressure plate 2 are locked by a fastener so as to compress the hose 3, a positioning sleeve 6 and a hammer cover 8 are sleeved, a cutter punch 5 filled with a discharging rod 7 is placed into a guide hole of the guide pressure plate, the hammer cover 8 applies force to the cutter punch 5 in a hammering or punching mode, an annular knife edge 11 of the cutter punch 5 is made to cut into the pipe wall of the hose 3 until the position is limited, the cutter punch is taken out, the discharging rod 7 is pressed down to eject the retained waste in the cutter punch, punching is completed.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. An accurate punching device for a hose is characterized by comprising a guide pressure plate component used for positioning the hose (3), a punching mechanism matched with the guide pressure plate component, and a core rod (4) inserted into the hose (3) and supporting the hose,

the top surface of the guide pressure plate component is provided with a row of cutter punch guide holes (9), the punching mechanism is arranged in the cutter punch guide holes (9) when in use,

the punching mechanism comprises a cutter punch (5), a locating sleeve (6) for limiting the movement of the cutter punch (5), a discharging rod (7) and a hammer cover (8), the cutter punch (5) is a hollow round tube, the lower end of the cutter punch (5) is provided with a sharp annular knife edge (11), the locating sleeve (6) is sleeved on the outer portion of the cutter punch (5), the discharging rod (7) is movably arranged in the cutter punch (5), and the hammer cover (8) is arranged at the upper end of the cutter punch (5).

2. The precise punching device for the hose according to claim 1, wherein the annular knife edge (11) is conical, the taper is less than 20 degrees, and the punching diameter of the annular knife edge (11) is the same as the diameter of a round hole to be processed.

3. The precise punching device for the hose according to claim 1, wherein the outer cylinder of the cutter punch (5) is thick at the upper end and thin at the lower end, the upper end and the lower end form a stepped plane, and the upper end surface of the positioning sleeve (6) is in contact with the stepped plane to limit the punching stroke of the cutter punch (5).

4. The precise punching device for the hose according to claim 3, wherein the positioning sleeve (6) is hollow and tubular, the inner diameter of the positioning sleeve is matched with the outer diameter of the cutter punch (5), the lower end face of the positioning sleeve (6) is in contact with the guide pressure plate assembly, and the length of the positioning sleeve (6) is determined according to the cutting depth of the cutter punch (5).

5. An accurate perforating device for hoses according to claim 1, characterized in that the discharge bar (7) is an L-shaped wire bar with a right angle bend, the diameter of which is smaller than the inner diameter of the cutter punch (5), the bend extending out of the cutter punch (5) through an opening provided in the cutter punch (5).

6. The precise punching device for the hose according to claim 1, wherein the hammer cover (8) is cylindrical, an inner circle blind hole is formed in the lower end of the hammer cover, the blind hole is matched with the cutter punch (5) to be installed, and the upper end of the hammer cover (8) is a plane.

7. The precise punching device for the hose according to claim 1, wherein the guide pressing plate assembly comprises an upper guide pressing plate (1) and a lower guide pressing plate (2), an upper semicircular groove with the same outer diameter as that of the hose (3) is formed in the bottom surface of the upper guide pressing plate (1), a lower semicircular groove corresponding to the upper semicircular groove is formed in the bottom surface of the lower guide pressing plate (2), and the upper semicircular groove and the lower semicircular groove are combined to form a cylindrical positioning cavity for placing the hose (3).

8. The precise hose perforating device according to claim 7, characterized in that the side surfaces of the upper guide pressure plate (1) and the lower guide pressure plate (2) are provided with a row of semicircular grooves with the same outer diameter as the cutter punch (5), which together form the positioning guide hole (10) of the cutter punch (5).

9. The precise punching device for the hose according to claim 1, wherein the core rod (4) is made of a soft material with hardness higher than that of the hose, and the core rod (4) is a round rod with equal diameter and diameter smaller than the inner diameter of the hose.

10. The precise perforating device for hoses as claimed in claim 9, characterized in that the mandrel (4) is a nylon mandrel.