Condenser tube bending machine

Abstract

The present invention discloses a condenser bending machine, which relates to the technical field of condenser processing, and includes a casing and a continuous drive assembly, wherein a panel is fixed by screws on the front opening of the casing, and arc-shaped guide grooves are symmetrically opened on both sides of the panel, and a back plate is welded and fixed to the bottom of the back of the casing, and the continuous drive assembly is movably arranged on the back of the casing, and the continuous drive assembly includes a support plate, a release tooth, a bending tooth, a top plate, a cylinder and a bottom plate. During the use of the present invention, the application uses a reasonable structural design so that the one-time forming bending action and the automatic material withdrawal action of the "U"-shaped bend can be completed with the help of only one cylinder, and the two lifting strokes of the cylinder are divided into a first-stage bending action and a second-stage material withdrawal action and are completed continuously, and the bending action and the material withdrawal action are completed in sequence without causing action interference, so that the application has coherent actions and greatly reduces production costs, and is suitable for batch bending operations of condenser copper tubes.

Description

Technical Field

[0001] The invention relates to the technical field of condenser tube processing, in particular to a condenser tube bending machine. Background Art

[0002] A freezer is a refrigeration device that maintains a constant low temperature. It is also a civilian product that keeps food or other items in a constant low temperature state. During the production and processing of the condenser in the freezer, the condenser tube needs to be bent into a U-shaped structure.

[0003] At present, there are two main ways to bend condenser copper tubes. One is manual bending, which requires manpower and uses a simple bending device for bending. The other is to use automated equipment: the feeding action, bending action, and material withdrawal action are respectively performed by motors (or pneumatic components), and the action stroke and sequence program are compiled into the PLC program module to achieve automatic bending. However, the above manual bending and automated equipment bending have the following problems: manual bending is time-consuming and labor-intensive, and the labor intensity of employees is high, which does not meet the actual production requirements. Although the use of automated equipment for automatic bending can reduce the labor intensity of employees, it is expensive and has high economic costs. In addition, bending the condenser into a U-shaped structure usually requires two actions to complete, and its applicability is not strong.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a condenser tube bending machine is proposed. Summary of the invention

[0005] The object of the present invention is to provide a condenser tube bending machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a condenser bending machine, comprising a casing and a continuous drive assembly, a panel is fixed with screws on the front opening of the casing, and arc-shaped guide grooves are symmetrically opened on both sides of the panel, a back plate is welded and fixed to the bottom of the back side of the casing, and the continuous drive assembly is movably arranged on the back side of the casing, the continuous drive assembly comprises a support plate, a release tooth, a bending tooth, a top plate, a cylinder and a bottom plate, the bottom length of the support plate is greater than the size of the middle seat hole of the back plate, and release teeth are symmetrically fixed on both sides of the top of the support plate, the gap in the middle seat hole of the support plate is matched with bending teeth, and the bending teeth are in a "Z" shape structure, the top plate is coaxially fixed with the root of the bending tooth, and the length of the top plate is greater than the size of the middle seat hole of the support plate but smaller than the size of the middle seat hole of the back plate, the bending tooth is fixedly connected to the output end of the cylinder, and the cylinder is fixed to the bottom plate with bolts, and the bottom plate is fixed to the middle end of the bottom of the casing.

[0007] Furthermore, a one-time forming component is arranged inside the casing, and the one-time forming component includes a large gear and a through hole. The two large gears are rotatably installed on both sides of the inner cavity of the casing, and the circumferential teeth of the two large gears are meshed, and a through hole is opened through the middle of the large gear.

[0008] Furthermore, the one-time forming component also includes a pinion and a crank, the pinion is coaxially connected to the back of the large gear, and the circumferential tooth shape of the pinion is meshed with the end tooth shape of the bent tooth, and the crank is coaxially fixed to the front of the large gear.

[0009] Furthermore, the one-shot forming component also includes a mounting rod and a limiting ring. The end of the crank is fixed with a mounting rod that deviates from the center of the large gear, and the middle of the mounting rod is integrally fixed with a limiting ring.

[0010] Furthermore, the one-time forming component also includes a moving wheel and a fastening nut. The moving wheel is sleeved on the end of the mounting rod, and the moving wheel is threadedly fastened to the threaded end of the mounting rod through the fastening nut.

[0011] Furthermore, the gap in the middle hole of the large gear is equipped with a synchronous release component, and the synchronous release component includes a shaft rod and a driven gear. The outer diameter of the shaft rod is smaller than the inner diameter of the middle hole of the large gear, and a driven gear is coaxially fixed on the back side of the shaft rod, and the driven gear is meshed with the release teeth on both sides for transmission.

[0012] Furthermore, the synchronous release assembly also includes a static wheel and a bending groove. The static wheel is sleeved on the end of the shaft, and a bending groove matching the dynamic wheel is opened on one circumferential side of the static wheel.

[0013] Furthermore, the synchronous release assembly also includes a truncated cone groove, a truncated cone groove is provided on the other circumferential side of the static wheel, and the truncated cone groove is inclined from back to front, and the truncated cone groove and the bending groove constitute the complete outer edge of the static wheel.

[0014] Furthermore, legs are fixed on both sides of the bottom of the casing, and a conveyor belt is rotatably installed on the front of the bottom of the legs, and hooks are fixed at equal intervals on one side of the conveyor belt.

[0015] Furthermore, the base of the support leg is fixed to the workbench by bolts, and a support rod is fixed to the middle of the workbench, the end of the support rod is supported on the middle of the guide rod, and the guide rod is in a "Z" shape.

[0016] The present invention provides a condenser tube bending machine, which has the following beneficial effects:

[0017] 1. In the bending process, the present invention drives the moving wheels at the ends of the cranks on the front sides of the large gears to bend the two ends of the condenser copper tube synchronously through the jacking of the cylinder in the first stage. Only one bending action is needed to bend the two ends of the condenser straight tube by 90 degrees to form a "U"-shaped tube. The bending groove design on the outer edge of the opposite surface of the moving wheel and the static wheel can limit the condenser copper tube during the bending process to ensure the bending accuracy. In addition, the moving wheel and the static wheel can be conveniently disassembled and assembled through the cooperation of the fastening nut and the limit ring to adapt to the bending requirements of condenser copper tubes of different specifications.

[0018] 2. In the process of withdrawing the material, the second stage of lifting of the cylinder makes the static wheel rotate and switch the bending groove on one side that originally contacts the condenser elbow to the frustum groove on the other side to contact the condenser elbow. Thanks to the inclined design of the frustum groove tilting from the back to the front, the condenser elbow can be separated from the structural gap between the moving wheel and the static wheel and fall down under the action of gravity. The application adopts reasonable structural design, so that the one-time forming bending action and automatic material withdrawal action of the "U"-shaped elbow can be completed with the help of only one cylinder, and the two-stage lifting stroke of the cylinder is divided into the first stage of bending action and the second stage of material withdrawal action and completed continuously, and the bending action The material return action is completed in sequence without any interference in the action, so that the action of the present application is coherent and the production cost is greatly reduced. It is suitable for batch bending operations of condenser copper tubes. In addition, the formed "U"-shaped condenser bend can complete the material return by itself due to the special structural design of the outer edges of different structures on both sides of the static wheel, which solves the technical problem of the prior art that the material return is difficult due to the limitations of the bending groove and the "U"-shaped special structure. The fallen condenser bend contacts the guide rod in the middle of the workbench and is guided by the "Z"-shaped structural inclined surface of the guide rod to be guided and transported to the bottom end of the conveyor belt and received on the hook for continuous transportation, thereby preventing the occurrence of material piling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall front structure of the device of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall back structure of the device of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the casing of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of a one-step forming component of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the synchronous release component of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the continuous drive assembly of the present invention;

[0025] Figure 7This is a schematic diagram of the condenser copper tube of the present invention before bending;

[0026] Figure 8 This is a schematic diagram of the condenser copper tube after bending of the present invention;

[0027] Fig. 9 It is a schematic diagram of the material withdrawal method of the condenser copper tube of the present invention.

[0028] In the figure: 1. casing; 2. panel; 3. guide groove; 4. back plate; 5. continuous drive assembly; 501. support plate; 502. release tooth; 503. bending tooth; 504. top plate; 505. cylinder; 506. bottom plate; 6. one-time molding assembly; 601. large gear; 602. through hole; 603. small gear; 604. crank; 605. mounting rod; 606. limiting ring; 607. driving wheel; 608. fastening nut; 7. synchronous release assembly; 701. shaft; 702. driven gear; 703. stationary wheel; 704. bending groove; 705. frustum groove; 8. support foot; 9. conveyor belt; 10. hook; 11. workbench; 12. support rod; 13. guide rod. DETAILED DESCRIPTION

[0029] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0030] See also Figures 1 to 9The present invention provides a technical solution: a condenser tube bending machine, including a casing 1 and a continuous drive component 5, the casing 1 has a panel 2 fixed by screws on the front opening, and arc-shaped guide grooves 3 are symmetrically opened on both sides of the panel 2, a back plate 4 is welded and fixed at the bottom of the back of the casing 1, and the continuous drive component 5 is movably arranged on the back of the casing 1, and the continuous drive component 5 includes a support plate 501, a release tooth 502, a bending tooth 503, a top plate 504, a cylinder 505 and a bottom plate 506, and the bottom length of the support plate 501 is greater than the middle of the back plate 4 The seat hole size is symmetrically fixed with release teeth 502 on both sides of the top of the support plate 501, and the gap of the seat hole in the middle of the support plate 501 is matched with a bending tooth 503, and the bending tooth 503 is a "Z"-shaped structure, and the root of the bending tooth 503 is coaxially fixed with a top plate 504, and the length of the top plate 504 is greater than the seat hole size in the middle of the support plate 501 but less than the seat hole size in the middle of the back plate 4, the bending tooth 503 is fixedly connected to the output end of the cylinder 505, and the cylinder 505 is bolted to the bottom plate 506, and the bottom plate 506 is fixed to the bottom of the casing 1 At the middle end, a one-time forming component 6 is arranged inside the casing 1, and the one-time forming component 6 includes a large gear 601 and a through hole 602. The two large gears 601 are rotatably installed on both sides of the inner cavity of the casing 1, and the circumferential teeth of the two large gears 601 are meshed, and a through hole 602 is provided through the middle of the large gear 601. The one-time forming component 6 also includes a small gear 603 and a crank 604. The small gear 603 is coaxially connected to the back of the large gear 601, and the circumferential tooth shape of the small gear 603 is meshed with the tooth shape at the end of the bending tooth 503. , and a crank 604 is coaxially fixed to the front of the large gear 601, the one-time molding component 6 also includes a mounting rod 605 and a limiting ring 606, the end of the crank 604 is fixed with a mounting rod 605 deviating from the center of the large gear 601, and the limiting ring 606 is fixed in an integral manner in the middle of the mounting rod 605, the one-time molding component 6 also includes a moving wheel 607 and a fastening nut 608, the end of the mounting rod 605 is sleeved with the moving wheel 607, and the moving wheel 607 is threadedly fastened to the end of the mounting rod 605 through the fastening nut 608;

[0031] The specific operation is as follows: the copper tube of the condenser is inserted into the bending groove 704 on the opposite side of the moving wheel 607 and the static wheel 703 through the feeding mechanism or manually from the side. At this time, the moving wheel 607 is at the twelve o'clock position of the static wheel 703, and the cylinder 505 is activated to push the bending tooth 503 of the "Z"-shaped structure to rise. Before the top plate 504 does not contact the supporting plate 501, the bending tooth 503 is meshed with the small gear 603 coaxial with the back of the right large gear 601, driving the right large gear 601 to rotate clockwise, and further through the meshing of the circumferential teeth of the large gears 601 on both sides, the left large gear 601 is driven to rotate in the opposite direction. The moving wheel 607 at the end of the crank 604 on the front of the large gear 601 on both sides rotates in the clockwise direction, thereby driving the moving wheel 607 at the end of the crank 604 on the front side of the large gear 601 on both sides to bend the two ends of the condenser copper tube synchronously. Only one bending action is needed to bend the two ends of the condenser straight tube 90 degrees into a "U"-shaped tube, and the bending groove 704 on the outer edge of the opposite surface of the moving wheel 607 and the static wheel 703 can limit the condenser copper tube during the bending process to ensure the bending accuracy. In addition, the moving wheel 607 and the static wheel 703 can be conveniently disassembled and assembled through the cooperation of the fastening nut 608 and the limiting ring 606 to adapt to the bending requirements of condenser copper tubes of different specifications;

[0032] See also Figures 5 and 6 , a synchronous release component 7 is gap-matched in the middle through hole 602 of the large gear 601, and the synchronous release component 7 includes a shaft rod 701 and a driven gear 702, the outer diameter of the shaft rod 701 is smaller than the inner diameter of the middle through hole 602 of the large gear 601, and a driven gear 702 is coaxially fixed to the back of the shaft rod 701, and the driven gear 702 is meshed with the release teeth 502 on both sides for transmission, the synchronous release component 7 also includes a static wheel 703 and a bending groove 704, the static wheel 703 is sleeved at the end of the shaft rod 701, and a bending groove 704 matching with the driven wheel 607 is opened on one side of the static wheel 703 in the circumference, and the synchronous release component 7 also includes a truncated cone groove 705, a truncated cone groove 705 is opened on the other side of the static wheel 703 in the circumference, and the truncated cone groove 705 is inclined from back to front, and the truncated cone groove 705 and the bending groove 704 constitute the complete outer edge of the static wheel 703;

[0033] The specific operation is as follows: after the first stage of the bending stroke is completed, the bending teeth 503 of the "Z"-shaped structure continue to rise until the top plate 504 fits with the support plate 501. At this time, the support plate 501, which was originally in a stationary state, is lifted up under the push of the cylinder 505, and the engagement of the teeth 502 with the driven gears 702 on the back of the shafts 701 on both sides is released, driving the static wheels 703 on both sides to rotate in opposite directions. At this time, the static wheel 703 rotates the bending groove 704 on one side that was originally in contact with the condenser bend to switch to the frustum groove 705 on the other side to contact with the condenser bend. Thanks to the frustum groove 705 from the back to the The front inclined inclined surface design allows the condenser bend to escape from the structural gap between the moving wheel 607 and the stationary wheel 703 and fall down under the action of gravity. The application uses a reasonable structural design to enable the one-time forming and bending action of the "U"-shaped bend and the automatic material withdrawal action to be completed with the help of a cylinder 505. The two-stage lifting stroke of the cylinder 505 is divided into a first-stage bending action and a second-stage material withdrawal action and is completed continuously. The bending action and the material withdrawal action are completed in sequence without action interference, making the application action coherent and greatly reducing the production cost, and is suitable for batch bending operations of condenser copper tubes.

[0034] See also Figure 1 to Figure 2 , legs 8 are fixed on both sides of the bottom of the casing 1, and a conveyor belt 9 is rotatably installed on the front of the bottom of the legs 8, and hooks 10 are fixed at equal intervals on one side of the conveyor belt 9, the root of the legs 8 is bolted to the workbench 11, and a support rod 12 is fixed in the middle of the workbench 11, and the end of the support rod 12 is supported in the middle of the guide rod 13, and the guide rod 13 is in a "Z" shape structure;

[0035] The specific operation is as follows: the formed "U"-shaped structure condenser bend can complete the material withdrawal by itself due to the special structural design of the different structural outer edges on both sides of the static wheel 703, which solves the technical problem of the prior art that the material withdrawal is difficult due to the limitations of the bending groove 704 and the "U"-shaped special structure. The fallen condenser bend contacts the guide rod 13 in the middle of the workbench 11, and is guided by the "Z"-shaped structure inclined surface of the guide rod 13 to be guided and transported to the bottom end of the conveyor belt 9 and is carried on the hook 10 for continuous transportation to prevent the occurrence of material piling.

[0036] In summary, when using the condenser tube bending machine, the condenser copper tube is inserted into the bending groove 704 on the opposite side of the moving wheel 607 and the static wheel 703 through the feeding mechanism or manually from the side. At this time, the moving wheel 607 is at the twelve o'clock position of the static wheel 703, and the cylinder 505 is activated to push the bending tooth 503 of the "Z" shaped structure to rise. Before the top plate 504 does not contact the support plate 501, the bending tooth 503 is meshed with the coaxial small gear 603 on the back of the right large gear 601, driving the right large gear 601 to rotate in a clockwise direction, and further through the meshing of the circumferential teeth of the large gears 601 on both sides, the left large gear 601 is driven to rotate in the opposite clockwise direction, thereby driving the moving wheels 604 at the ends of the cranks 604 on the front sides of the large gears 601 on both sides. The wheel 607 bends both ends of the condenser copper tube synchronously, and only one bending action is needed to bend both ends of the condenser straight tube 90 degrees into a "U"-shaped tube, and the bending groove 704 design on the outer edge of the opposite surface of the moving wheel 607 and the static wheel 703 can limit the condenser copper tube during the bending process to ensure the bending accuracy. In addition, the moving wheel 607 and the static wheel 703 can be easily disassembled and assembled through the cooperation of the fastening nut 608 and the limiting ring 606 to adapt to the bending requirements of condenser copper tubes of different specifications. After the first stage of the bending stroke is completed, the bending teeth 503 of the "Z"-shaped structure continue to rise until the top plate 504 fits with the support plate 501. At this time, the support plate 501, which was originally in a stationary state, is pushed by the cylinder 505. The moving wheel 607 is lifted up, and the engagement of the driven gear 702 on the back of the shaft 701 on both sides is released to drive the static wheels 703 on both sides to rotate in opposite directions. At this time, the static wheel 703 rotates the bending groove 704 on one side that was originally in contact with the condenser bend to switch to the frustum groove 705 on the other side to contact the condenser bend. Thanks to the inclined design of the frustum groove 705 tilted from back to front, the condenser bend can be separated from the structural gap between the moving wheel 607 and the static wheel 703 and fall down under the action of gravity. Through reasonable structural design, the present application makes it possible for the one-time forming and bending action of the "U"-shaped bend and the automatic material withdrawal action to be completed with the help of a cylinder 505, and the two-stage lifting stroke of the cylinder 505 is divided into a first stage of bending action and a second stage of lifting action. The two-stage material withdrawal action is completed continuously, and the bending action and the material withdrawal action are completed in sequence without interference, which makes the action of the present application coherent and greatly reduces the production cost. It is suitable for batch bending operations of condenser copper tubes. In addition, the formed "U"-shaped condenser bend can complete the material withdrawal by itself due to the special structural design of the outer edges of different structures on both sides of the static wheel 703, which solves the technical problem of the prior art that the material withdrawal is difficult due to the limitations of the bending groove 704 and the "U"-shaped special structure. The fallen condenser bend contacts the guide rod 13 in the middle of the workbench 11, and is guided by the "Z"-shaped structural inclined surface of the guide rod 13 to be guided and transported to the bottom end of the conveyor belt 9 and is received on the hook 10 for continuous transportation, thereby preventing the occurrence of material piling.

[0037] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.

Claims

1. A condenser tube bending machine, characterized in that: The invention comprises a casing (1) and a continuous drive component (5), wherein a panel (2) is fixed by screws on the front opening of the casing (1), and arc-shaped guide grooves (3) are symmetrically provided on both sides of the panel (2), a back plate (4) is welded and fixed on the bottom of the back of the casing (1), and the continuous drive component (5) is movably arranged on the back of the casing (1), and the continuous drive component (5) comprises a support plate (501), a release tooth (502), a bending tooth (503), a top plate (504), a cylinder (505) and a bottom plate (506), the bottom length of the support plate (501) is greater than the size of the seat hole in the middle of the back plate (4), and the release teeth (502) are symmetrically fixed on both sides of the top of the support plate (501), and the seat hole in the middle of the support plate (501) is fitted with a clearance. The bending tooth (503) is coaxially fixed with a top plate (504) at the root of the bending tooth (503), and the length of the top plate (504) is greater than the size of the seat hole in the middle of the support plate (501) but less than the size of the seat hole in the middle of the back plate (4). The bending tooth (503) is fixedly connected to the output end of the cylinder (505), and the cylinder (505) is bolted to the bottom plate (506), and the bottom plate (506) is fixed to the middle end of the bottom of the casing (1). A one-time forming component (6) is arranged inside the casing (1), and the one-time forming component (6) includes a large gear (601) and a through hole (602). The large gears (601) are rotatably installed on both sides of the inner cavity of the casing (1), and the two large gears The circumferential teeth of the large gear (601) are meshed with each other, and a through hole (602) is provided in the middle of the large gear (601), the one-time forming component (6) also includes a pinion (603) and a crank (604), the back of the large gear (601) is coaxially connected with the pinion (603), and the circumferential teeth of the pinion (603) are meshed with the teeth at the end of the bent teeth (503), and the front of the large gear (601) is coaxially fixed with the crank (604), the one-time forming component (6) also includes a mounting rod (605) and a limiting ring (606), the end of the crank (604) is fixed with a mounting rod (605) deviating from the center of the large gear (601), and the middle of the mounting rod (605) is integrally fixed with the limiting ring (606) The one-time molding component (6) further comprises a driving wheel (607) and a fastening nut (608), the end of the mounting rod (605) is sleeved with the driving wheel (607), and the driving wheel (607) is threadedly fastened to the end of the mounting rod (605) through the fastening nut (608), the middle through hole (602) of the large gear (601) is clearance-matched with a synchronous release component (7), the synchronous release component (7) comprises a shaft rod (701) and a driven gear (702), the outer diameter of the shaft rod (701) is smaller than the inner diameter of the middle through hole (602) of the large gear (601), and a driven gear (702) is coaxially fixed to the back of the shaft rod (701), and the driven gear (702) is meshed with the release teeth (502) on both sides for transmission,The synchronous release assembly (7) further comprises a static wheel (703) and a bending groove (704), the static wheel (703) is sleeved on the end of the shaft (701), and a bending groove (704) matching with the moving wheel (607) is provided on one circumferential side of the static wheel (703), and the synchronous release assembly (7) further comprises a truncated cone groove (705), and a truncated cone groove (705) is provided on the other circumferential side of the static wheel (703), and the truncated cone groove (705) is inclined from the back to the front, and the truncated cone groove (705) and the bending groove (704) constitute the complete outer edge of the static wheel (703).

2. A condenser tube bending machine according to claim 1, characterized in that: Support legs (8) are fixed on both sides of the bottom of the housing (1), and a conveyor belt (9) is rotatably mounted on the front of the bottom of the support legs (8), and hooks (10) are fixed at equal intervals on one side of the conveyor belt (9).

3. A condenser tube bending machine according to claim 2, characterized in that: The base of the support leg (8) is bolted to the workbench (11), and a support rod (12) is fixed in the middle of the workbench (11). The end of the support rod (12) is supported in the middle of a guide rod (13), and the guide rod (13) is in a "Z"-shaped structure.

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