CN213671253U

CN213671253U - Bending mechanism of copper pipe for evaporator of air cooler

Info

Publication number: CN213671253U
Application number: CN202022412935.4U
Authority: CN
Inventors: 吴代华
Original assignee: Zhangjiagang Huao Special Refrigeration Equipment Co ltd
Current assignee: Zhangjiagang Huao Special Refrigeration Equipment Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-07-13
Anticipated expiration: 2030-10-27

Abstract

The utility model relates to a return bend mechanism of used copper pipe of evaporimeter of air-cooler, it includes return bend positioning unit and return bend power pack. On one hand, the utility model greatly reduces the deformation of the straight pipe caused by bending under the positioning of the shaping channel; on the other hand, under the parallel state of the two flanging die strips, the arc-shaped matching grooves limit the deformation of the copper pipe during bending, so that the roundness of the elbow is improved, and the wall thickness of the elbow is relatively uniform.

Description

Bending mechanism of copper pipe for evaporator of air cooler

Technical Field

The utility model belongs to the processing equipment field of air-cooler part, concretely relates to return bend mechanism of used copper pipe of evaporator of air-cooler.

Background

The air cooler is divided into an industrial air cooler and a household air cooler, the industrial air cooler is generally used in a refrigeration house and a cold chain logistics refrigeration environment, the household air cooler is also called as a water-cooled air conditioner, and the air cooler is an evaporative cooling and ventilating unit integrating cooling, ventilating, dust prevention and smell removal.

However, in the preparation process of the evaporator of the air cooler, a copper pipe is required to be used for the corresponding medium to flow in a circuitous manner so as to achieve the effect of sufficient heat exchange, and therefore, the copper pipe is required to be bent.

At present, the most commonly used bending pipe is formed by aligning the bending position with the bending center from the inner side wall, and applying an acting force to the outer side end of the copper pipe by taking the bending center as the center of a circle to force the copper pipe to bend and deform inwards around the bending center to form an elbow.

Obviously, the bending mode is not suitable for bending copper pipes (generally, the wall thickness is about 2 mm), and the specific embodiment is as follows:

1) the copper pipe belongs to a deformable product, when acting force is applied to the outer side of the copper pipe, not only the contact position of the acting force can cause the deformation of the copper pipe, but also the deformation can be caused in the bending center in the arc thickness direction, so that the roundness of the elbow is obviously reduced, the wall thickness of the elbow is not uniform (namely, the thickness is not uniform), the weak part can deform under high pressure provided by a compressor to cause medium transmission obstruction, the service power of the compressor is increased, the service life of the compressor is shortened, and the leakage of a medium is easily caused;

2) the location of copper pipe is also very important, when inwards buckling, can produce outside effort, if location tip and buckle between the center nothing set up, will lead to the deformation of this section straight tube, causes the deviation of the angle of buckling, influences the mobility of medium.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art not enough, provide the used return bend mechanism of copper pipe of the evaporimeter of a brand-new air-cooler.

For solving the technical problem, the utility model discloses take following technical scheme:

the utility model provides an used return bend mechanism of copper pipe of evaporimeter of air-cooler which includes:

the bent pipe positioning unit is used for positioning the copper pipe and comprises a multi-jaw chuck, a driving part and a shaping auxiliary part, wherein the driving part drives the multi-jaw chuck to move transversely in the horizontal coordinate system along the X-axis direction and the Y-axis direction, the X-axis direction is the length direction of the copper pipe, the shaping auxiliary part forms a shaping channel for the copper pipe to pass through, and the shaping channel is positioned between the multi-jaw chuck and the bending area and is close to the bending area;

the bending power unit is used for applying acting force to the copper pipe to force the copper pipe to deform and bend, and comprises a first bending part and a second bending part which are positioned on the left side and the right side of the copper pipe and distributed in a bending area in a relatively staggered manner, and a power part for driving the first bending part and the second bending part to synchronously rotate or reset around the vertical direction, wherein the first bending part comprises a first wheel disc and a first flanging die strip, the first wheel disc and the first flanging die strip are vertically arranged on the axis, the first flanging die strip linearly extends from the tangential direction of the first wheel disc, and a first arc-shaped matching groove matched with the outer diameter of the copper pipe is formed in the end face, contacted with the copper pipe, of the first wheel disc and the; the second bending part is the same as the first bending part in structure, a second wheel disc, a second flanging die strip and a second arc-shaped matching groove are correspondingly formed, the first flanging die strip and the second flanging die strip are arranged in parallel, and the first flanging die strip and the second flanging die strip are respectively attached to two opposite sides of the copper pipe from the first arc-shaped matching groove and the second arc-shaped matching groove in a staggered mode.

Preferably, the shaping auxiliary part comprises a first shaping part and a second shaping part which are positioned on the left side and the right side of the copper pipe, wherein a central line of a shaping channel formed between the first shaping part and the second shaping part is superposed with a central line of the copper pipe.

Preferably, the first styling part comprises a plurality of styling rollers side by side and aligned, wherein each styling roller is free to roll around the vertical direction.

The second shaping part comprises a shaping module and an adjusting part used for driving the shaping module to move transversely along the Y-axis direction, wherein a shaping groove extending along the X-axis direction is formed in the end face of the shaping module, and a shaping channel is formed between the shaping groove and the shaping rollers.

The adjusting part comprises a guide rail extending along the length direction of the Y axis, a sliding seat arranged on the guide rail in a sliding manner, and a telescopic rod extending along the direction of the Y axis, wherein the guide rail is provided with a plurality of guide rails and distributed at intervals, the sliding seat and the guide rail are arranged in a one-to-one correspondence manner, the shaping module is fixedly connected onto the sliding seat, and the telescopic end part of the telescopic rod is connected onto the shaping module.

According to the utility model discloses a concrete implementation and preferred aspect, the setting groove is the V type, and between the V type and the design gyro wheel that corresponds constitute one with copper pipe three point contact's design district, a plurality of design districts constitute the design passageway, wherein the steel pipe contradicts on two inside walls of V, contradicts on the design gyro wheel from left end portion from the upper and lower part on right side. And under the three-point contact shaping, the deformation of the copper pipe close to the bending area is reduced during bending.

Preferably, the three contacts form an equilateral triangle, and the centerline of the equilateral triangle coincides with the centerline of the copper tube. Ensures the stability of bending and provides conditions for uniformly bending the copper pipe.

Preferably, the second wheel disc is located at the front end of the first wheel disc, and the first flanging die strip and the second flanging die strip are bent leftwards synchronously along with the rotation of the first wheel disc and the second wheel disc.

Specifically, the angle of synchronous rotation of the first wheel disc and the second wheel disc is equal to the bending angle of the copper pipe.

In addition, the power part comprises a transmission part for synchronously connecting the first wheel disc and the second wheel disc and a motor for driving the first wheel disc or the second wheel disc to rotate.

Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:

on one hand, the utility model greatly reduces the deformation of the straight pipe caused by bending under the positioning of the shaping channel; on the other hand, under the parallel state of the two flanging die strips, the arc-shaped matching grooves limit the deformation of the copper pipe during bending, so that the roundness of the elbow is improved, and the wall thickness of the elbow is relatively uniform.

Drawings

The invention will be described in further detail with reference to the following drawings and specific embodiments:

fig. 1 is a schematic front view of a pipe bending mechanism of the present invention;

FIG. 2 is a schematic top view of FIG. 1;

FIG. 3 is a schematic view of the pipe bending mechanism of FIG. 2 in a bent state;

wherein: A. a bent pipe positioning unit; 1. a multi-jaw chuck; 2. a drive member; 3. shaping auxiliary parts; 31. a first molding section; 310. shaping rollers; 32. a second shaping part; 320. a shaping module; 321. an adjustment member; a. a guide rail; b. a slide base; c. a telescopic rod;

B. a pipe bending power unit; b1, a first bending member; b11, a first wheel disc; b12, a first flanging die strip; c1, a first arc matching groove; b2, a second bending member; b21, a second wheel disc; b22, a second flanging die strip; c2, a second arc matching groove; b3, a power component; b30, a transmission component; b31, a motor.

G. Copper tubing.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, the bending mechanism for a copper tube used in an evaporator of an air cooler in this embodiment includes a bending positioning unit a and a bending power unit B.

Referring to fig. 2, the tube bending positioning unit a is used for positioning the copper tube G, and includes a multi-jaw chuck 1, a driving part 2 for driving the multi-jaw chuck 1 to move in a horizontal coordinate system in a lateral direction along X-axis and Y-axis directions, and a shaping auxiliary 3, wherein the X-axis direction is a length direction of the copper tube G.

And the driving part 2 realizes the transverse movement of the multi-jaw chuck 1 along the directions of the X axis and the Y axis by adopting a conventional matching mode of a track and a screw nut.

Specifically, the shaping auxiliary member 3 forms a shaping channel for the copper tube G to pass through, and the shaping channel is located between the multi-jaw chuck 1 and the bending region and is disposed near the bending region.

In this embodiment, the shaping auxiliary member 3 includes a first shaping portion 31 and a second shaping portion 32 located on the left and right sides of the copper tube G, wherein a center line of a shaping passage formed between the first shaping portion 31 and the second shaping portion 32 coincides with a center line of the copper tube.

The first sizing section 31 includes a plurality of sizing rollers 310 aligned side by side, wherein each sizing roller 310 freely rolls around the vertical direction. Here, it should be noted that the plurality of shaping rollers 310 not only serve the purpose of forming the shaping passage, but also facilitate smooth transfer of the copper tube G to the bending region.

The second shaping portion 32 includes a shaping module 320, and an adjusting member 321 for driving the shaping module 320 to move transversely along the Y-axis direction, wherein a shaping groove extending along the X-axis direction is formed on an end surface of the shaping module 320, and a shaping channel is formed between the shaping groove and the plurality of shaping rollers 310.

Adjusting part 321 includes guide rail a along the extension of Y axle length direction, slide b that the slip set up on guide rail a, and the telescopic link c that extends along the Y axle direction, and wherein guide rail a has two and interval distribution, and telescopic link c is located between two guide rail a, and slide b and guide rail a one-to-one set up, and stock module 320 fixed connection is on slide b, and telescopic link c's flexible end connection is on stock module 320.

The shaping groove is V-shaped, a shaping area in three-point contact with the copper pipe is formed between the V-shaped groove and the corresponding shaping roller 310, a plurality of shaping areas form a shaping channel, and the steel pipe abuts against the two inner side walls of the V from the upper and lower parts on the right side and abuts against the shaping roller from the left end part. And under the three-point contact shaping, the deformation of the copper pipe close to the bending area is reduced during bending.

In this example, the three contacts form an equilateral triangle, and the center line of the equilateral triangle coincides with the center line of the copper tube. Ensures the stability of bending and provides conditions for uniformly bending the copper pipe.

And the pipe bending power unit B is used for applying acting force to the copper pipe to force the deformation and bending of the copper pipe.

In this example, the power unit B for bending the tube includes a first bending part B1 and a second bending part B2 located at the left and right sides of the copper tube and distributed in the bending area in a relatively staggered manner, and a power part B3 driving the first bending part B1 and the second bending part B2 to rotate or reset synchronously around the vertical direction.

The first bending part B1 comprises a first wheel disc B11 with a vertical shaft axis and a first flanging die B12 linearly extending from the tangential direction of the first wheel disc B11, and a first arc-shaped matching groove c1 matched with the outer diameter of the copper pipe is formed in the end face, contacted with the copper pipe, of the first wheel disc B11 and the first flanging die B12.

The second bending part B2 has the same structure as the first bending part B1, and is correspondingly provided with a second wheel disc B21, a second flanging die strip B22 and a second arc-shaped matching groove c 2.

In this example, the second wheel disc b21 is located at the front end of the first wheel disc b11, the first flanging die strip b12 and the second flanging die strip b22 are arranged in parallel, and the first flanging die strip b12 and the second flanging die strip b22 are attached to two opposite sides of the copper tube in a relatively staggered manner from the first arc-shaped matching groove c1 and the second arc-shaped matching groove c2 respectively.

The power unit B3 includes a transmission unit B30 for synchronously connecting the first wheel B11 and the second wheel B21, and a motor B31 for driving the second wheel B21 to rotate.

Referring to fig. 3, the pipe bending process is as follows:

1) the corrected copper pipe penetrates out of the multi-jaw chuck 1 and is cut according to the size, then the multi-jaw chuck 1 drives the copper pipe to move along the X-axis direction and the Y-axis direction, the copper pipe G penetrates out of the first arc-shaped matching groove c1 and the second arc-shaped matching groove c2, and the bent part is aligned with the axis of the first wheel disc b 11;

2) the second shaping part 32 moves to the first shaping part 31 to form a shaping channel, and the copper pipe is positioned in the shaping channel;

3) the second wheel disc b21 is driven to rotate, the first flanging die strip b12 and the second flanging die strip b22 are bent leftwards along with the rotation of the first wheel disc b11 and the second wheel disc b21 synchronously, wherein the rotation angle of the second wheel disc b21 is 90 degrees, and then the right-angle bending of the copper tube is completed.

Therefore, the present embodiment has the advantages of: on one hand, under the positioning of the shaping channel, the deformation of the straight pipe caused by bending is greatly reduced; on the other hand, under the parallel state of the two flanging die strips, the arc-shaped matching grooves limit the deformation of the copper pipe during bending, so that the roundness of the elbow is improved, and the wall thickness of the elbow is relatively uniform.

The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the protection scope of the present invention should not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides an used return bend mechanism of copper pipe of evaporimeter of air-cooler which includes:

the bent pipe positioning unit is used for positioning the copper pipe;

the pipe bending power unit is used for applying acting force to the copper pipe to force the copper pipe to deform and bend,

the method is characterized in that:

the bent pipe positioning unit comprises a multi-jaw chuck, a driving part and a shaping auxiliary part, wherein the driving part drives the multi-jaw chuck to move transversely in the horizontal coordinate system along the X-axis direction and the Y-axis direction, the X-axis direction is the length direction of a copper pipe, the shaping auxiliary part forms a shaping channel for the copper pipe to pass through, and the shaping channel is positioned between the multi-jaw chuck and the bending area and is close to the bending area;

the power unit for bending the pipe comprises a first bending part and a second bending part which are positioned on the left side and the right side of the copper pipe and distributed in the bending area in a relatively staggered manner, and a power part for driving the first bending part and the second bending part to synchronously rotate or reset around the vertical direction, wherein the first bending part comprises a first wheel disc and a first flanging die strip, the first wheel disc is vertically arranged on an axis line, the first flanging die strip linearly extends from the tangential direction of the first wheel disc, and a first arc-shaped matching groove matched with the outer diameter of the copper pipe is formed in the end surface of the first wheel disc, the first flanging die strip and the copper pipe, which are in contact with each other; the second bending part is the same as the first bending part in structure, a second wheel disc, a second flanging die strip and a second arc-shaped matching groove are correspondingly formed, the first flanging die strip and the second flanging die strip are arranged in parallel, and the first flanging die strip and the second flanging die strip are respectively attached to the two opposite sides of the copper pipe in a manner that the first arc-shaped matching groove and the second arc-shaped matching groove are staggered relatively.

2. The tube bending mechanism for a copper tube used in an evaporator of an air cooler according to claim 1, characterized in that: the shaping auxiliary part comprises a first shaping part and a second shaping part which are positioned on the left side and the right side of the copper pipe, wherein a central line of the shaping channel formed between the first shaping part and the second shaping part is superposed with a central line of the copper pipe.

3. The tube bending mechanism for a copper tube used in an evaporator of an air cooler according to claim 2, characterized in that: the first sizing section includes a plurality of sizing rollers aligned side by side, wherein each of the sizing rollers is free to roll about a vertical direction.

4. A copper tube bending mechanism for an evaporator of an air cooler according to claim 3, characterized in that: the second design portion is including the design module, be used for the drive the design module is along the adjusting part of Y axle direction lateral shifting motion, wherein the terminal surface of design module is formed with the design groove that extends along the X axle direction, design groove and a plurality of form between the design gyro wheel the design passageway.

5. A copper tube bending mechanism for an evaporator of an air cooler according to claim 4, characterized in that: adjusting part include along the guide rail that Y axle length direction extended, slide and set up slide on the guide rail and the telescopic link that extends along Y axle direction, wherein the guide rail has many and interval distribution, the slide with the guide rail one-to-one sets up, just the shaping module fixed connection be in on the slide, the flexible end connection of telescopic link be in on the shaping module.

6. A copper tube bending mechanism for an evaporator of an air cooler according to claim 4, characterized in that: the setting groove is the V type, and constitutes one between V type and the design gyro wheel that corresponds and manage the design district of three point contact, a plurality of the design district constitutes the design passageway, wherein the steel pipe is contradicted on two inside walls of V, is contradicted on the design gyro wheel from the left end portion from the upper and lower part on right side.

7. A copper tube bending mechanism for an evaporator of an air cooler according to claim 6, characterized in that: the three contacts form an equilateral triangle, and the center line of the equilateral triangle is superposed with the center line of the copper tube.

8. The tube bending mechanism for a copper tube used in an evaporator of an air cooler according to claim 1, characterized in that: the second wheel disc is positioned at the front end of the first wheel disc, and the first flanging die strip and the second flanging die strip are synchronously bent leftwards along with the rotation of the first wheel disc and the second wheel disc.

9. A copper tube bending mechanism for an evaporator of an air cooler according to claim 8, characterized in that: the angle of the first wheel disc and the second wheel disc synchronously rotating is equal to the bending angle of the copper pipe.

10. The tube bending mechanism for a copper tube used in an evaporator of an air cooler according to claim 1, characterized in that: the power part comprises a transmission part and a motor, wherein the transmission part is used for synchronously connecting the first wheel disc and the second wheel disc, and the motor is used for driving the first wheel disc or the second wheel disc to rotate.