Automatic bending device for refrigerator condenser pipe

Abstract

The utility model relates to an automatic refrigerator condenser pipe bending device which comprises a bending assembly used for guiding a condenser pipe to be bent, a stretching assembly used for shaping the bent condenser pipe and a pulley assembly used for supporting the condenser pipe to form a bend. The bending assembly comprises a two-axis sliding rail and a bending roller arranged on the sliding rail, a sliding rod is arranged at the bottom of the bending roller in a telescopic mode, and the pulley assembly comprises a pulley body arranged on the base table in a lifting mode and a sliding block. The lifting type pulley assembly is arranged, so that the pulley bodies are lower than the upper surface of the base table so as to prevent the pulley bodies from blocking a condenser pipe from being coiled and bent, and in the moving process of the bending assembly, the bending roller and the sliding rod are arranged, so that the pulley bodies which the bending roller moves to are triggered one by one to rise and are clamped by the clamping pin, and the condenser pipe is bent. Therefore, the straight pipe part of the condenser pipe cannot be hindered due to the protrusion of the pulley body.

Description

Technical Field

[0001] This utility model belongs to the field of condenser tube processing, specifically relating to an automatic bending device for refrigerator condenser tubes. Background Technology

[0002] During the manufacturing process of refrigerator condenser coils, bending and shaping are required. Currently, this is typically done manually by coiling the condenser coils onto the pulleys of a stretching and shaping machine, followed by stretching and shaping to complete the bending. Manual coiling is inefficient, and the mechanical action during stretching and shaping raises safety concerns. If a robotic arm is used to automatically coil the condenser coils between the pulleys, the unbent straight sections of the condenser coil can easily brush against other pulleys when the automated device bends around a particular pulley, as the stretching platform has many pulleys. Utility Model Content

[0003] The purpose of this invention is to provide an automatic bending device for refrigerator condenser tubes in order to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] An automatic bending device for refrigerator condenser tubes includes a bending assembly for guiding the condenser tubes to bend, a stretching assembly for shaping the bent condenser tubes, and a pulley assembly for supporting the condenser tubes to form the bends. The stretching assembly includes a base and a clamp. The bending assembly includes two-axis slide rails and a bending roller mounted on the slide rails. A sliding rod is telescopically mounted at the bottom of the bending roller. The pulley assembly includes a pulley body and a slider mounted on the base. A hinged rod is provided below the base, with both ends of the hinged rod abutting against the slider and the pulley body, respectively. The sliding rod is used to press down the slider to raise the pulley body. An unlockable latch is also provided below the base to limit the movement of the pulley body when it is raised.

[0006] As a further optimization of this utility model, the base includes a fixed platform and a movable platform. The movable platform is driven away from the fixed platform by a hydraulic device to shape the condenser tube. The fixed platform and the movable platform are existing technologies for stretching and shaping devices. The two ends of the condenser tube are fixed by clamps, and then the condenser tube is shaped by moving the movable platform to both sides.

[0007] As a further optimization of this utility model, the two-axis slide rail includes a first slide rail mounted on the base and a second slide rail perpendicular to the first slide rail. A rotating shaft is also mounted on the second slide rail, and a bending roller is mounted at the bottom of the rotating shaft. In this solution, the bending roller is moved by the horizontally mounted first and second slide rails, and the bending roller rotates by the rotating shaft, so as to drive the condenser tube to shuttle between the pulley assembly.

[0008] As a further optimization scheme of the utility model, the bending roller includes a driving bending roller and a driven bending roller, the driving bending roller is driven through the driving element arranged at the bottom of the second sliding rail, wherein the surface of the driving bending roller and the driven bending roller is provided with a groove for clamping the condenser pipe, the driving bending roller and the driven bending roller form clamping by being arranged, the condenser pipe is clamped, the driving bending roller is controlled to rotate through the driving element, in the process of driving the condenser pipe to bend, the driving bending roller can roll along the surface of the condenser pipe when rotating, and the condenser pipe is clamped when the driving bending roller stops rotating, so that the condenser pipe can be pulled to make the condenser pipe better form.

[0009] As a further optimization scheme of the utility model, the sliding rod keeps the tendency of sliding downward through the elastic element, and the bottom of the sliding rod is provided with a guide wheel for contacting the base, the sliding rod is used for pressing the sliding block downwards one by one when the bending roller advances, so that the pressing capacity is enhanced through the elastic element, and the guide wheel is arranged to facilitate rolling and reduce friction.

[0010] As a further optimization scheme of the utility model, the surface of the base is provided with a groove, the sliding block is slidingly arranged in the groove, and the groove is further provided with a slope for facilitating the sliding rod to leave, the sliding block is embedded in the base, and when the sliding rod slides out to press the sliding block, the sliding rod enters the groove, and the slope is arranged to make the sliding rod leave the groove.

[0011] As a further optimization scheme of the utility model, the shaft part of the pulley body is provided with a shaft rod, and the side surface of the shaft rod is provided with a side rod for contacting the articulated rod, so as to facilitate the sliding block to press and lift the pulley body.

[0012] The utility model discloses the beneficial effect lies in: the utility model discloses the pulley assembly of setting lifting type makes the pulley body lower than the upper surface of the base, prevents its obstruction condenser pipe disc bending, in the process of bending assembly movement, through setting bending roller and sliding rod, make the pulley body that bending roller moves to be triggered and lifted one by one and be stuck with the bayonet catch, to support the bending place of condenser pipe, so it will not obstruct the straight pipe part of condenser pipe due to the protrusion of pulley body. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the stretching assembly plan view of the utility model.

[0014] Figure 2 It is the Figure 1 structure enlarged view of part A in the utility model.

[0015] Figure 3 It is the front view of the utility model.

[0016] Figure 4 It is the Figure 2 B-B view of the utility model.

[0017] Figure 5 is the Figure 2 middle C-C view.

[0018] Figure 6 is the Figure 3 middle D part structure enlarged view.

[0019] In the figure: 1, stretching assembly; 11, fixed table; 12, moving table; 13, clamp; 2, bending assembly; 21, first sliding rail; 22, second sliding rail; 23, driven bending roller; 24, active bending roller; 25, driving piece; 26, sliding rod; 27, elastic piece; 3, pulley assembly; 31, groove; 32, sliding block; 33, shaft; 34, pulley body; 35, side rod; 36, hinged rod; 37, guide cover; 38, catch pin. DETAILED DESCRIPTION

[0020] The following further describes the present application in conjunction with the drawings, and it is necessary to point out here that the following detailed description is only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application, and those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0021] Example 1

[0022] As Figures 1-6 shown, a refrigerator condenser pipe automatic bending device, including for guiding the bending of the condenser pipe bending assembly 2, for the bending of the condenser pipe after setting the stretching assembly 1, for supporting the condenser pipe forming bending pulley assembly 3, stretching assembly 1 includes base and clamp 13, bending assembly 2 includes two shaft sliding rail and setting on the sliding rail bending roller, the bottom of the bending roller telescopic setting has a sliding rod 26, pulley assembly 3 includes lifting setting on the pulley body 34 and sliding block 32 of the base, wherein the base below setting has a hinged rod 36, both ends of the hinged rod 36 respectively with sliding block 32 and pulley body 34 abut, sliding rod 26 for pressing down the sliding block 32 makes the pulley body 34 rise, the base below still setting for in the pulley body 34 rises and carries out the locking of the unlockable catch pin 38.

[0023] The present application sets up the lifting type pulley assembly 3, so that the pulley body 34 is lower than the upper surface of the base, to prevent its blocking the condenser pipe disc bending, in the movement process of the bending assembly 2, through setting the bending roller and the sliding rod 26, make the pulley body 34 that the bending roller moves to be triggered and rise, and be caught by the catch pin 38, to support the bending of the condenser pipe, so it will not cause the pulley body 34 to protrude and hinder the straight pipe part of the condenser pipe.

[0024] The unlockable card lock 38 is ejected by the elastic spring, and is ejected when the pulley body 34 is lifted. When unlocked, negative pressure can be retracted by a unified pneumatic unlocking mechanism, or other feasible unlocking methods can be used to facilitate the re-falling and retraction of the pulley body 34.

[0025] The base station includes a fixed table 11 and a moving table 12, and the moving table 12 is driven away from the fixed table 11 by a hydraulic device to shape the condenser tube. The fixed table 11 and the moving table 12 are prior art of the stretching shaping device, and the two ends of the condenser tube are fixed by a clamp 13, and then the folded and bent condenser tube is shaped by translating the moving table 12 to both sides.

[0026] The two-axis slide rail includes a first slide rail 21 arranged on the base station and a second slide rail 22 perpendicular to the first slide rail 21, and a rotating shaft is further arranged on the second slide rail 22. The bending roller is arranged at the bottom of the rotating shaft. The first slide rail 21 and the second slide rail 22 are horizontally arranged to move the bending roller, and the rotating shaft is used for self-rotation of the bending roller to drive the condenser tube to shuttle between the pulley assemblies 3.

[0027] The bending roller includes a driving bending roller 24 and a driven bending roller 23. The driving bending roller 24 is driven by a driving member 25 arranged at the bottom of the second slide rail 22. The surfaces of the driving bending roller 24 and the driven bending roller 23 are provided with grooves for clamping the condenser tube. The driving bending roller 24 and the driven bending roller 23 form a clamping mechanism to clamp the condenser tube. The driving member 25 controls the rotation of the driving bending roller 24. During the bending process of the condenser tube, the driving bending roller 24 rotates to roll along the surface of the condenser tube. When the driving bending roller 24 stops rotating, the condenser tube is clamped, and the condenser tube can be pulled to better fold on the surface of the pulley body 34. Therefore, a guide cover 37 can be arranged on the pulley body 34 to form a convex eave above the pulley body 34 to prevent the condenser tube from detaching.

[0028] The slide rod 26 has a downward sliding tendency by the elastic member 27, and the bottom of the slide rod 26 is provided with a guide wheel for contacting the base station. The slide rod 26 is used to press down the sliding block 32 when the bending roller advances. Therefore, the downward pressing ability is enhanced by the elastic member 27, and the guide wheel is arranged to facilitate rolling and reduce friction.

[0029] The base station is provided with a groove 31, and the sliding block 32 is slidingly arranged in the groove 31. The groove 31 is further provided with a slope for facilitating the exit of the slide rod 26. The sliding block 32 is embedded in the base station. When the slide rod 26 slides out to press down the sliding block 32, it enters the groove 31. In order for the slide rod 26 to exit from the groove 31, a slope is arranged.

[0030] The shaft part of the pulley body 34 is provided with a shaft rod 33, and the side surface of the shaft rod 33 is provided with a side rod 35 for contacting the articulated rod 36, so as to facilitate the downward pressing of the sliding block 32 to lift the pulley body 34.

[0031] The implementation is specific: the condenser pipe is inserted into the bending roller and fixed on one clamp 13, and the other clamp 13 can also be arranged as a lifting type to prevent blocking the bending of the condenser pipe, then the bending roller is driven by the first sliding rail 21, the second sliding rail 22 and the rotating shaft to move along the predetermined track of the condenser pipe, and the condenser pipe is intermittently pulled by the stop rotation of the driving bending roller 24, so that the condenser pipe is better fitted after bending the pulley assembly 3, in the movement process of the bending roller 24, the sliding rod 26 enters the recess 31 to press down the sliding block 32, so that the pulley assembly 3 in front is lifted to support the upcoming bending, until the driving bending roller 24 guides the other end of the condenser pipe to the other clamp 13, the other clamp 13 is lifted to clamp, and the moving table 12 starts to stretch and form the condenser pipe.

[0032] It should be noted that, as Figure 1 As shown by the angle of view, for the pulley assembly 3 on the rightmost side, when the condenser pipe is bent by 180°, the excess condenser pipe will still sweep to the middle inclined pulley assembly 3 (which has been lifted), but the condenser pipe itself has a certain plasticity, even if it is blocked by the above inclined pulley assembly 3, it will only be bent, but not stuck, and will not affect the continuous bending. The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A refrigerator condenser pipe automatic bending device, characterized in that: The application relates to a bending assembly (2) for bending a condenser pipe, a stretching assembly (1) for shaping the bent condenser pipe, and a pulley assembly (3) for supporting the condenser pipe to form the bend, wherein the stretching assembly (1) comprises a base and a clamp (13), the bending assembly (2) comprises two-axis sliding rails and a bending roller arranged on the sliding rails, the bottom of the bending roller is provided with a sliding rod (26) in an extendable and retractable mode, the pulley assembly (3) comprises a pulley body (34) and a sliding block (32) arranged on the base in a lifting mode, a hinged rod (36) is arranged below the base, the two ends of the hinged rod (36) are respectively in abutment with the sliding block (32) and the pulley body (34), the sliding rod (26) is used for pressing down the sliding block (32) to lift the pulley body (34), and an unlockable clamping pin (38) for limiting the lifting of the pulley body (34) is further arranged below the base.

2. The automatic bending device for the condenser pipe of a refrigerator according to claim 1, characterized in that: The base comprises a fixed table (11) and a movable table (12), and the movable table (12) is driven away from the fixed table (11) by a hydraulic device to shape the condenser pipe.

3. The automatic bending device for the condenser pipe of a refrigerator according to claim 2, characterized in that: The two-axis sliding rails comprise a first sliding rail (21) arranged on the base and a second sliding rail (22) perpendicular to the first sliding rail (21), and a rotating shaft is further arranged on the second sliding rail (22), and the bending roller is arranged at the bottom of the rotating shaft.

4. The automatic bending device for the condenser pipe of a refrigerator according to claim 3, characterized in that: The bending roller comprises a driving bending roller (24) and a driven bending roller (23), the driving bending roller (24) is driven by a driving piece (25) arranged at the bottom of the second sliding rail (22), and the surfaces of the driving bending roller (24) and the driven bending roller (23) are provided with grooves for clamping the condenser pipe.

5. The automatic bending device for the condenser pipe of a refrigerator according to claim 4, characterized in that: The sliding rod (26) has a downward sliding tendency by an elastic piece (27), and the bottom of the sliding rod (26) is provided with a guide wheel for contacting the base.

6. The automatic bending device for condenser pipe of refrigerator according to claim 1, characterized in that: The surface of the base is provided with a groove (31), the sliding block (32) is slidingly arranged in the groove (31), and the groove (31) is further provided with an inclined slope for facilitating the sliding rod (26) to leave.

7. The automatic bending device for condenser pipe of refrigerator according to claim 1, characterized in that: The shaft part of the pulley body (34) is provided with a shaft rod (33), and the side surface of the shaft rod (33) is provided with a side rod (35) for contacting the hinged rod (36).

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