An improved copper tube straightening device

Abstract

The present invention provides an improved copper tube straightening device, which belongs to the technical field of industrial machinery. The device includes a discharge device, a guide device, a stretching power device and a cutting device; the discharge device includes a support part and a buffer arc tube, the support part includes a support plate and a cover body, the cover body is a cylindrical tube with an opening at the bottom, and a discharge port is opened on the top surface of the cover body; the buffer arc tube is a pipe bent into a gradual arc shape, the feed port of the buffer arc tube faces downward and is located above the support part, the discharge port of the buffer arc tube is horizontally facing the guide device, the feed port and the discharge port are not located on the same vertical plane, and the minimum diameter of the gradual arc of the buffer arc tube is greater than the maximum diameter of the copper tube coil; the present invention can prevent multiple copper tubes from being confused by simultaneous release, can better buffer and stretch the copper tube, can well avoid copper tube crack damage caused by straightening, and has great advantages over the prior art.

Description

Technical Field

[0001] The invention relates to the technical field of industrial machinery, and in particular to an improved copper tube straightening device. Background Art

[0002] In refrigeration, air conditioning equipment and other related products, copper tubes are widely used as pipelines for heat exchange of refrigerants. The copper tubes are initially wound into copper tube coils. When processing is required, the copper tubes on the copper tube coils must be straightened and cut first. At present, there are many mechanical equipment for straightening copper tubes. The basic principle is that starting from the starting end of the copper tube, the copper tube is first passed through the guide sleeve, and then through multiple roller straightening devices, driven by an external stretching power device, so as to achieve the straightening of the copper tube. The problems existing in the current copper tube straightening device are: 1. The guide sleeve is generally a straight tube fitting. After the copper tube is released from the roller, it often directly enters between the guide sleeve and the roller without buffering transition, that is, directly from the arc state to the straightening state. At this time, the copper tube is subjected to a large deformation force, and the copper tube is prone to cracking or dark lines. 2. In the process of stretching the copper tube, the copper tube on the copper tube coil, especially the first and second layers, often has a stuck material phenomenon. At this time, it is time-consuming and labor-intensive to handle it manually, which greatly affects the normal operation of the copper tube processing process. Summary of the invention

[0003] The purpose of the present invention is to provide an improved copper tube straightening device to address the above-mentioned problems, which can better buffer and stretch the copper tube and effectively avoid crack damage to the copper tube caused by straightening it directly from a coiled state, and has great advantages over the prior art.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0005] An improved copper tube straightening device comprises a feeding device, a guiding device, a stretching power device and a cutting device; the feeding device comprises a supporting part and a buffer arc tube, the supporting part comprises a supporting plate and a cover body, the cover body is a cylindrical tube with an opening at the bottom, and a feeding port is provided on the top surface of the cover body; the buffer arc tube is a pipe fitting bent into a gradual arc shape, the feeding port of the buffer arc tube faces downward and is located above the supporting part, the feeding port of the buffer arc tube faces horizontally toward the guiding device, the feeding port and the feeding port are not located on the same vertical plane, and the minimum diameter of the gradual arc of the buffer arc tube is greater than the maximum diameter of the copper tube coil; the guiding device comprises a guiding tube, a horizontal guiding wheel group and a vertical guiding wheel group, the guiding tube is placed horizontally and the front end tube of the guiding tube The outlet is arranged opposite to the discharge outlet of the buffer arc tube, and a horizontal guide wheel group and a vertical guide wheel group are arranged in sequence on the rear side of the rear end outlet of the guide tube; the stretching power device comprises a linear slide rail and a clamping member, the linear slide rail is located on the side of the vertical guide wheel group away from the guide tube, the length direction of the linear slide rail is parallel to the axial direction of the guide tube, a sliding seat is slidably arranged on the linear slide rail, an automatic clamping clamp for clamping the copper tube is arranged on the sliding seat, and the sliding seat is driven by a linear motor to move along the linear slide rail; a cutting device is arranged on the side of the linear slide rail away from the vertical guide wheel group; the diameter of the discharge outlet, the inner diameter of the buffer arc tube, and the inner diameter of the guide tube are all larger than the outer diameter of the copper tube; the guiding device, the stretching power device and the cutting device are all arranged on the base.

[0006] In the present invention, preferably, the discharge device further comprises a hose whose inner diameter is greater than the diameter of the copper tube, and one end of the hose is connected to the cover body near the discharge port through a first connecting piece.

[0007] In the present invention, preferably, the buffer arc tube is fixed by a supporting device, and the supporting device includes a plurality of supporting feet, a first cross beam is arranged on the supporting feet, a plurality of first support rods are vertically fixed on the top of the first cross beam, the top end of the first support rod is connected to the second cross beam, and a plurality of L-shaped support arms are separated and fixed on the top of the second cross beam, and the L-shaped support arms include at least a first support arm, a second support arm, a third support arm, a fourth support arm and a fifth support arm, and each horizontal end of the first support arm, the second support arm, the third support arm, the fourth support arm and the fifth support arm are used to fix different parts of the buffer arc tube one by one through the second connecting piece, and the vertical distance between the buffer arc tube body and the vertical plane where the first cross beam is located is gradually reduced from the discharge port to the discharge port until it is fit and fixed on the first cross beam.

[0008] In the present invention, preferably, the horizontal ends of the second support arm, the third support arm and the fourth support arm are transitionally connected via an arc plate, and the curvature of the arc plate is consistent with the curvature of the corresponding position of the buffer arc tube.

[0009] In the present invention, preferably, multiple groups of buffer arc tubes are fixed on the supporting device, the front section of the rear group of buffer arc tubes is cross-fixedly connected with the arc plate and the buffer arc tube of the front group, and the discharge ports of the multiple groups of buffer arc tubes are horizontally facing the corresponding guide devices respectively, and the number of the guide devices, stretching power devices and cutting devices is consistent with the number of buffer arc tubes, and they are matched with each other.

[0010] In the present invention, preferably, a control system and a buzzer are also included, and the control system is controlled and connected with the buzzer, automatic clamping fixture, linear motor and cutting device; a through-light sensor is fixed to the pipe mouth of the hose close to the cover body through a mounting sleeve, and the through-light sensor includes a light beam projector and a light beam receiver, and the light radiation ranges of the light beam projector and the light beam receiver both cover the entire pipe mouth of the hose; the through-light sensor is electrically connected to the control system through a circuit, and when the through-light sensor senses that there is no copper pipe passing through the pipe mouth of the hose, the control system controls the linear motor drive and the cutting device to stop working, and controls the buzzer to work to remind the operator.

[0011] In the present invention, preferably, the feed port of the buffer arc tube, the discharge port of the buffer arc tube, the front end pipe port of the guide tube, and the rear end pipe port of the guide tube are all covered with soft sleeves.

[0012] In the present invention, preferably, the cutting device includes an electric push rod, a rotating motor, a movable slide rail and a grinding wheel, the movable slide rail is perpendicular to the linear slide rail, the rotating motor is slidably mounted on the movable slide rail through a sliding mounting block, the electric push rod is connected to the sliding mounting block, drives the sliding mounting block and the rotating motor to approach and move away from the linear slide rail, and the grinding wheel is fixed to the output shaft of the rotating motor through a fixing member; the electric push rod and the rotating motor are electrically connected to the control system through a circuit.

[0013] The distance between the discharge port of the buffer arc tube and the guide tube is not less than 2 meters.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] 1. The discharge device of the present invention includes a support part and a buffer arc tube. The support part includes a support plate, a cover body and a hose. The design of simple structures such as the cover body, the discharge port and the hose can prevent multiple coils of copper tubes from being stuck and confused by being released at the same time. The buffer arc tube is a pipe bent into a gradual arc shape, and its minimum diameter is larger than the maximum diameter of the copper tube coil, so as to better buffer and stretch the copper tube, and avoid the copper tube on the coil being directly and forcibly straightened to cause cracks as in the prior art. The distance between the discharge port of the buffer arc tube and the guide tube is not less than 2 meters, so that the copper tube can be straightened after coming out of the buffer arc tube after a long period of natural relaxation, which is of great benefit in avoiding the copper tube from being straightened and cracked. The present invention can well avoid the copper tube crack damage caused by straightening, and has great advantages over the prior art.

[0016] 2. The present invention has designed a special supporting device to fix the buffer arc tube, which not only makes the device structure stable, but also the feed port and the discharge port are not located on the same vertical plane, thus avoiding confusion caused by crossing when discharging materials.

[0017] 3. The present invention also designs a through-light sensor at the mouth of the hose to detect whether a circle of copper tube is used up. The light beam projector and the light beam receiver of the through-light sensor send the detected signal to the control system, and the control system makes a judgment. If the signals sent by the light beam projector and the light beam receiver to the controller are the same, then no copper tube passes through the mouth of the hose, that is, the previous circle of copper tube is used up. The control system controls the linear motor and the cutting device to stop working, and controls the buzzer to remind the operator. The operator uses a joint to connect the two circles of copper tubes or welds the ends of the two copper tubes, and then can continue the straightening work without re-threading the tube, thereby reducing the waste of time and physical strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the discharge device in the present invention.

[0020] Figure 3 It is a schematic diagram of the arrangement of the guide device, the stretching power device and the cutting device in the present invention.

[0021] Figure 4 It is a schematic diagram of the arrangement of the guide device, the stretching power device and the cutting device in the present invention from a top view angle.

[0022] Figure 5 It is a schematic structural diagram of the supporting part in the present invention.

[0023] Figure 6 for Figure 1 A is an enlarged view of the figure.

[0024] Figure 7 It is the control principle diagram of the present invention.

[0025] Among them, 1-support part, 101-cover, 1011-discharge port, 102-hose, 1021-installation sleeve, 1022-first connecting piece, 103-support plate, 104-beam projector, 105-beam receiver, 2-support device, 201-support foot, 202-first beam, 203-first support rod, 204-second beam, 205-fifth support arm, 206-fourth support arm, 207-arc plate, 208-third Support arm, 209-buffer arc tube, 210-second support arm, 211-feed port, 212-first support arm, 213-discharge port, 3-soft bag, 4-copper tube, 5-guide tube, 6-horizontal guide wheel group, 7-vertical guide wheel group, 8-stretching power device, 81-linear motor, 82-automatic clamping fixture, 83-sliding seat, 84-linear slide rail, 91-rotating motor, 92-grinding wheel, 93-electric push rod, 94-moving slide rail. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The drawings are only for illustrative purposes and represent only schematic diagrams, not physical drawings, and cannot be understood as limitations on this patent. In order to better illustrate the specific implementation methods of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures, parts and their descriptions in the drawings may be omitted. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1-7, an improved copper tube straightening device, comprising a feeding device, a guiding device, a stretching power device 8 and a cutting device; the feeding device is used to gradually stretch the copper tube 4 from the coil state, and comprises a supporting part 1 and a buffer arc tube 209, the supporting part 1 comprises a supporting plate 103 and a cover body 101, the cover body 101 is a cylindrical tube with an opening at the bottom, and a feeding port 1011 is provided on the top surface of the cover body 101, the supporting plate 103 is used to place the copper tube coil to be straightened, after the copper tube coil is placed on the supporting plate 103, one end of the copper tube of the inner circle of the copper tube coil is taken out, and the copper tube is guided through the feeding port 1011 Through the simple structural design of the cover body 101 and the discharge port 1011, the blocking effect of the discharge port 1011 can prevent multiple coils of copper tubes 4 from being released at the same time and causing chaos. The cover body 101 and the support plate 103 are not fixed, but are in active contact. On the one hand, it is convenient to put in the copper tube coils, and on the other hand, the cover body 101 is in a movable form. When the copper tube passes through the discharge port 1011, under the action of the copper tube, the cover body 101 can swing with it and suffer less damage. Since the cover body 101 and the copper tube are relatively smooth and the friction is small, even if the cover body 101 is brought to a certain height by the copper tube, it will fall down due to gravity. The buffer arc tube 209 is a pipe fitting bent into a gradual arc shape, and the feed port 211 of the buffer arc tube 209 faces downward and is located above the support part 1, so that one end of the pulled copper tube directly enters the feed port 211 of the buffer arc tube 209 without bending, and then passes through the buffer arc tube 209 to gradually enlarge the coil, and finally passes through the discharge port 213 of the buffer arc tube 209 horizontally toward the guide device. Among them, the present invention also requires that the feed port 211 and the discharge port 213 are not located on the same vertical plane to avoid intersection and confusion. The minimum diameter of the gradual arc of the buffer arc tube 209 is larger than the maximum diameter of the copper tube coil, so as to better buffer and stretch the copper tube, avoid forcibly straightening the copper tube on the coil as in the prior art, thereby avoiding cracks and dark lines damage, which is much superior to the prior art.

[0029] The guide device in the present invention adopts the existing technology, including a guide tube 5, a horizontal guide wheel group 6 and a vertical guide wheel group 7. The guide tube 5 is placed horizontally and the front end of the guide tube 5 is arranged opposite to the discharge port 213 of the buffer arc tube 209. The rear end of the guide tube 5 is sequentially arranged with a horizontal guide wheel group 6 and a vertical guide wheel group 7 to shape and straighten the copper tube. The distance between the discharge port 213 of the buffer arc tube 209 and the guide tube 5 is not less than 2 meters, preferably more than 3 meters, and more preferably 4-5 meters, so that the copper tube can be naturally relaxed for a long time after coming out of the buffer arc tube 209, which is of great benefit to avoiding the straightening and cracking of the copper tube. The stretching power device 8 includes a linear slide 84 and a clamping member. The linear slide 84 is located on the side of the vertical guide wheel group 7 away from the guide tube 5. The length direction of the linear slide 84 is parallel to the axial direction of the guide tube 5. A sliding seat 83 is slidably arranged on the linear slide 84. The sliding seat 83 is provided with an automatic clamping clamp 82 for clamping the copper tube. The sliding seat 83 is driven by a linear motor 81 to move along the linear slide 84. A cutting device is provided on the side of the linear slide 84 away from the vertical guide wheel group 7. The discharge port diameter, the inner diameter of the buffer arc tube 209, and the inner diameter of the guide tube 5 are all larger than the outer diameter of the copper tube. The guide device, the stretching power device 8 and the cutting device are all arranged on the base. The automatic clamping clamp 82 can be made of existing technology, which will not be described here.

[0030] In some preferred embodiments of the present invention, the discharge device further comprises a hose 102 whose inner diameter is greater than the diameter of the copper tube. One end of the hose 102 is connected to the cover body 101 near the discharge port 1011 through a first connector 1022. The first connector 1022 can be a soft connection in the form of a connecting rope or a hard connection in the form of a connecting rod. Finally, the lower end of the hose 102 can be inside the discharge port 1011 or directly above the discharge port 1011. The hose 102 is further coordinated with the cover body 101. The copper tube passes through the hose 102 of a certain length. The hose is preferably a universal telescopic tube, which can better prevent multiple turns of copper tubes from being discharged and stuck at the same time. Compared with a hard tube, the hose 102 can be bent and deformed at will to a certain extent, and has less constraints on the copper tube.

[0031] In some preferred embodiments of the present invention, the buffer arc tube 209 is fixed by a supporting device 2, and the supporting device 2 includes a plurality of supporting feet 201, and the supporting feet 201 are fixed to the floor by fixing bolts, and a first crossbeam 202 is arranged on the supporting feet 201, and a plurality of first supporting rods 203 are vertically fixed on the top of the first crossbeam 202, and the top of the first supporting rod 203 is connected to the second crossbeam 204, and a plurality of L-shaped supporting arms are separated and fixed on the top of the second crossbeam 204, and the L-shaped supporting arms at least include a first supporting arm 212, a second supporting arm 21 0, the third support arm 208, the fourth support arm 206 and the fifth support arm 205, the horizontal ends of the first support arm 212, the second support arm 210, the third support arm 208, the fourth support arm 206 and the fifth support arm 205 are used to fix different parts of the buffer arc tube 209 one by one through the second connecting piece, and the vertical distance between the buffer arc tube 209 body and the vertical plane where the first crossbeam 202 is located from the discharge port 1011 to the discharge port 213 is gradually reduced until it is fitted and fixed on the first crossbeam 202. The structure of the above-mentioned support device 2 enables the buffer arc tube 209 to be stably installed and fixed, and satisfies that the feed port 211 and the discharge port 213 are not located on the same vertical plane, avoiding the crossing of copper tubes and causing confusion.

[0032] Preferably, the horizontal ends of the second support arm 210, the third support arm 208, and the fourth support arm 206 are transitionally connected via an arc plate 207, and the curvature of the arc plate 207 is consistent with the curvature of the corresponding position of the buffer arc tube 209, thereby further increasing the stability of the discharge device.

[0033] In order to save space, the present invention preferably fixes a plurality of buffer arc tubes 209 on the support device 2. Figure 2 The front section of the rear group of buffer arc tubes 209 is cross-fixedly connected with the arc plate 207 and the buffer arc tubes 209 of the front group, and the discharge ports 213 of the multiple groups of buffer arc tubes 209 are horizontally oriented to the corresponding guide devices, and the number of the guide devices, the stretching power device 8 and the cutting device is consistent with the number of the buffer arc tubes 209, and they are matched. Through this arrangement, the present invention can better save space and increase production capacity without adding too much extra space.

[0034] In the present invention, since the buffer arc tube 209 is arranged at a relatively high spatial position, the first copper tube buffer arc tube 209 needs to be climbed, which is time-consuming and laborious. If a circle of copper tube is used up and not processed, the next copper tube coil needs to be threaded again, which will waste a lot of manpower. The present invention is improved accordingly. The present invention also includes a control system and a buzzer. The control system is controlled and connected with the buzzer, the automatic clamping clamp 82, the linear motor 81, and the cutting device; the hose 102 is fixed with a reflected light sensor at the pipe mouth near the cover body 101 through the mounting sleeve 1021. The reflected light sensor includes a light beam projector 104 and a light beam receiver 105. The light beam projector 104 and The light radiation range of the light beam receiver 105 covers the entire pipe mouth of the hose 102; the incident light sensor is electrically connected to the control system through a circuit, and the light beam projector and the light beam receiver of the incident light sensor send the detected signal to the control system, and the control system makes a judgment. If the signals sent to the controller by the light beam projector and the light beam receiver are the same, then no copper tube passes through the pipe mouth of the hose, that is, the previous circle of copper tube coils is used up, and the control system controls the linear motor and the cutting device to stop working, and controls the buzzer to remind the operator. The operator uses a joint to connect the two circles of copper tubes or welds the two copper tube ends, and then can continue the straightening work without re-threading the tube, thereby reducing the waste of time and physical strength.

[0035] In the present invention, the feed port 211 of the buffer arc tube 209, the discharge port 213 of the buffer arc tube 209, the front end tube port of the guide tube 5, and the rear end tube port of the guide tube 5 are all covered with a soft sleeve 3, so as to avoid excessive hard contact between the copper tube and the pipelines and reduce wear.

[0036] In the present invention, the cutting device includes an electric push rod 93, a rotating motor 91, a movable slide rail 94 and a grinding wheel 92. The movable slide rail 94 is perpendicular to the linear slide rail 84. The rotating motor 91 is slidably installed on the movable slide rail 94 through a sliding mounting block. The electric push rod 93 is connected to the sliding mounting block to drive the sliding mounting block and the rotating motor 91 to approach and move away from the linear slide rail 84. The grinding wheel 92 is fixed to the output shaft of the rotating motor 91 through a fixing member; the electric push rod 93 and the rotating motor 91 are electrically connected to the control system through a circuit.

[0037] The working process of the present invention is as follows: open the cover body 101, place the copper tube coil on the support plate 103, pull out the end of the inner ring of the copper tube, pass it through the discharge port 1011 on the cover body 101, the cover body 101 covers the outside of the copper tube coil, and then pull out the copper tube and pass it upward through the hose 102 and the buffer arc tube 209. In the buffer arc tube 209, the copper tube is unfolded in a gradually stretched manner to avoid direct forced straightening. The copper tube coming out of the buffer arc tube 209 enters the guide tube 5 for preliminary guidance, and then gradually passes through the gap between the horizontal guide wheel group 6 and the gap between the vertical guide wheel group 7, enters the clamping device, and passes out of the clamping device.

[0038] During normal operation, the control system controls the operation of each component according to the program, starts the control switch of the control system, automatically clamps the copper tube with the clamp 82, and the linear motor 81 works, driving the sliding seat 83, the automatic clamp 82, and the copper tube to move away from the discharge device, and pulls the copper tube a certain distance until it is close to the right end of the linear slide rail 84. During this process, the copper tube is restricted by the discharge port 1011 and the hose 102, and multiple turns of the copper tube will not be pulled out at the same time. It is initially stretched through the buffer arc tube 209, so that the copper tube is gradually unfolded from the coiled state, and then there is a certain distance between the buffer arc tube 209 and the guide tube 5, so that it is relaxed more naturally, and finally it is naturally straightened through the horizontal guide wheel group 6 and the vertical guide wheel group 7, which can well avoid cracks caused by direct straightening of the copper tube. The control system then controls the automatic clamping fixture 82 to loosen the copper tube, and the linear motor 81 drives the sliding seat 83 and the automatic clamping fixture 82 to move a certain distance in the direction close to the discharge device. The copper tube is exposed from the automatic clamping fixture 82 to a certain length, and the automatic clamping fixture 82 clamps the copper tube again, driving the sliding seat 83, the automatic clamping fixture 82, and the copper tube to move away from the discharge device, and the copper tube is pulled out a certain distance again; the electric push rod 93 works, pushing the sliding mounting block close to the linear slide rail 84, the rotating motor 91 works, and drives the grinding wheel 92 to rotate to cut the copper tube; then the straightening work continues according to the above control process. Multiple sets of devices can work at the same time to increase production capacity. When the incident light sensor and the control system determine that there is no copper tube passing through the tube mouth of the hose 102, that is, the previous circle of copper tube coils is used up, the control system controls the linear motor 81 and the cutting device to stop working, and controls the buzzer to remind the operator. The operator uses a joint to connect the two circles of copper tubes or welds the joints, and then can continue the straightening work, reducing the waste of time and physical effort.

[0039] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. An improved copper tube straightening device, characterized in that: It includes a discharge device, a guide device, a stretching power device and a cutting device; the discharge device includes a support part and a buffer arc tube, the support part includes a support plate and a cover body, the cover body is a cylindrical tube with an opening at the bottom, and a discharge port is opened on the top surface of the cover body; the buffer arc tube is a pipe fitting bent into a gradual arc shape, the feed port of the buffer arc tube faces downward and is located above the support part, the discharge port of the buffer arc tube is horizontally facing the guide device, the feed port and the discharge port are not located on the same vertical plane, the minimum diameter of the gradual arc of the buffer arc tube is greater than the maximum diameter of the copper tube coil; the guide device includes a guide tube, a horizontal guide wheel group and a vertical guide wheel group, the guide tube is placed horizontally and the front end pipe mouth of the guide tube is arranged opposite to the discharge port of the buffer arc tube, A horizontal guide wheel group and a vertical guide wheel group are sequentially arranged at the rear side of the rear end pipe opening of the guide tube; the stretching power device comprises a linear slide rail and a clamping member, the linear slide rail is located on the side of the vertical guide wheel group away from the guide tube, the length direction of the linear slide rail is parallel to the axial direction of the guide tube, a sliding seat is slidably arranged on the linear slide rail, an automatic clamping clamp for clamping the copper tube is arranged on the sliding seat, and the sliding seat is driven by a linear motor to move along the linear slide rail; a cutting device is arranged on the side of the linear slide rail away from the vertical guide wheel group; the discharge port diameter, the inner diameter of the buffer arc tube, and the inner diameter of the guide tube are all larger than the outer diameter of the copper tube; the guide device, the stretching power device and the cutting device are all arranged on the base; the distance between the discharge port of the buffer arc tube and the guide tube is not less than 2 meters; The discharge device also includes a hose with an inner diameter greater than the diameter of the copper tube, one end of the hose is connected to the cover body near the discharge port through a first connector; The buffer arc tube is fixed by a supporting device, which includes a plurality of supporting feet, a first cross beam is arranged on the supporting feet, a plurality of first supporting rods are vertically fixed on the top of the first cross beam, the top of the first supporting rod is connected to the second cross beam, a plurality of L-shaped supporting arms are separately fixed on the top of the second cross beam, the L-shaped supporting arms at least include a first supporting arm, a second supporting arm, a third supporting arm, a fourth supporting arm and a fifth supporting arm, each horizontal end of the first supporting arm, the second supporting arm, the third supporting arm, the fourth supporting arm and the fifth supporting arm are used to fix different parts of the buffer arc tube one by one through the second connecting piece, and the vertical distance between the buffer arc tube body and the vertical plane where the first cross beam is located is gradually reduced from the discharge port to the discharge port until it is fitted and fixed on the first cross beam; The horizontal ends of the second support arm, the third support arm and the fourth support arm are transitionally connected by an arc plate, and the curvature of the arc plate is consistent with the curvature of the corresponding position of the buffer arc tube; A plurality of groups of buffer arc tubes are fixed on the supporting device, the front section of the rear group of buffer arc tubes is cross-fixedly connected with the arc plate and the front group of buffer arc tubes, and the discharge ports of the plurality of groups of buffer arc tubes are horizontally oriented toward the corresponding guide devices respectively, and the number of the guide devices, stretching power devices and cutting devices is consistent with the number of the buffer arc tubes, and they are matched and arranged.

2. An improved copper tube straightening device according to claim 1, characterized in that: It also includes a control system and a buzzer, which are controlled and connected with the control system, the buzzer, the automatic clamping fixture, the linear motor, and the cutting device; a through-light sensor is fixed to the pipe mouth of the hose close to the cover body through a mounting sleeve, and the through-light sensor includes a light beam projector and a light beam receiver, and the light radiation ranges of the light beam projector and the light beam receiver both cover the entire pipe mouth of the hose; the through-light sensor is electrically connected to the control system through a circuit, and when the through-light sensor senses that there is no copper pipe passing through the pipe mouth of the hose, the control system controls the linear motor drive and the cutting device to stop working, and controls the buzzer to work to remind the operator.

3. An improved copper tube straightening device according to claim 1, characterized in that: The feed inlet of the buffer arc tube, the discharge outlet of the buffer arc tube, the front end pipe opening of the guide tube, and the rear end pipe opening of the guide tube are all covered with soft sleeves.

4. An improved copper tube straightening device according to claim 2, characterized in that: The cutting device includes an electric push rod, a rotating motor, a movable slide rail and a grinding wheel. The movable slide rail is perpendicular to the linear slide rail. The rotating motor is slidably mounted on the movable slide rail through a sliding mounting block. The electric push rod is connected to the sliding mounting block to drive the sliding mounting block and the rotating motor to approach and move away from the linear slide rail. The grinding wheel is fixed to the output shaft of the rotating motor through a fixing member. The electric push rod and the rotating motor are electrically connected to the control system through a circuit.

Images