Edge wrapping strip bending device for cabinet door

Abstract

The utility model provides a cabinet door edge covering strip bending device which is provided with a supporting frame assembly, the upper end of the supporting frame assembly is provided with a left supporting frame base plate and a right supporting frame base plate, the lower end of a left supporting frame is provided with a power distribution cabinet, and the left supporting frame base plate is provided with a limiting guiding rule and a rotary bending base. The rotary bending base is composed of a rotary positioning section and a rotary bending section, a supporting shaft is arranged at the upper end of the rotary positioning section, the rotary bending section can rotate rightwards with the supporting shaft as the center, and push-pull devices are arranged at the front end of the limiting guiding rule, the rear end of the rotary bending section and the supporting frame base plate on the right side respectively. The technical problems that in existing edge covering strip bending operation, manual bending is conducted through a cylindrical tool mostly, the working efficiency is low, and the bending precision is poor are solved. The edge covering strip bending machine can be widely applied to the bending work of edge covering strips.

Description

Technical Field

[0001] This utility model relates to a bending device, and more particularly to a bending device for edge banding strips for cabinet doors. Background Technology

[0002] To prevent damage to the interior of cabinet doors during use, edge strips are usually installed on the outside of the doors to protect the internal structure. This is especially important for cabinet doors with glass panels, as impacts during opening and closing can directly cause the glass panels to break.

[0003] Before installation, the edge banding strip needs to be bent according to the curvature of the outer side of the cabinet door to ensure that the edge banding strip fits snugly against the outer side of the cabinet door after installation. However, most of the existing edge banding strip bending operations are performed manually using cylindrical tooling, which is inefficient and has poor bending accuracy. Utility Model Content

[0004] This utility model addresses the above-mentioned technical problems by providing a bending device for edge banding strips for cabinet doors. This bending device can quickly clamp the edge banding strips and perform fast and precise bending operations, resulting in high work efficiency, high bending accuracy, and good consistency of product curvature.

[0005] Therefore, the technical solution of this utility model is a cabinet door edge banding bending device, which is provided with a support frame assembly, the support frame assembly including a left support frame and a right support frame;

[0006] The upper ends of the left and right support frames are respectively provided with left support frame base plates and right support frame base plates, and the lower end of the left support frame is provided with a power distribution cabinet.

[0007] The upper end of the left support frame base plate is provided with a limiting ruler and a rotating bending seat. The limiting ruler is located on the left side of the left support frame base plate and is set along the left and right directions of the support frame assembly. The rotating bending seat is located on the right side adjacent to the limiting ruler and is set along the front and back directions of the support frame assembly.

[0008] The rotary bending seat consists of a rotary positioning section and a rotary bending section. The rotary positioning section is located at the front end of the rotary bending seat, and the rotary bending section is located at the rear end of the rotary bending seat. The upper end of the rotary positioning section is provided with a support shaft. The rotary bending section can rotate to the right around the support shaft. When the left rear end face of the edge banding strip is in contact with the front end face of the limiting ruler, the right front end face of the edge banding strip is in contact with the rear end of the support shaft.

[0009] The front end of the limiting ruler is equipped with a push-pull device, which can be pushed forward to the front end of the limiting ruler and pulled back in the opposite direction to clamp the edge strip between the limiting ruler and the push-pull device.

[0010] A push-pull device is provided near the rear end of the rotating bending section. The push-pull device is located symmetrically behind the support shaft. The push-pull device can be pushed towards the rear end of the support shaft and pulled back in the opposite direction to clamp the edge strip between the support shaft and the push-pull device.

[0011] The clamping force of the push-pull device at the front end of the limit ruler on the edge banding strip is greater than that of the push-pull device on the rotating bending section.

[0012] A push-pull device is provided at the upper end of the right support frame base plate. The push-pull device can be pushed to the left and pulled back in the opposite direction. When the edge banding strip is in contact with the front end face of the limit ruler, the edge banding strip and the push-pull device on the right support frame base plate are symmetrically arranged.

[0013] Preferably, a connecting column fixing seat is fixedly provided on the left support frame base plate at the rear end of the limiting ruler. The front end of the connecting column fixing seat is provided with a slot, and the rear end of the limiting ruler is fixedly provided with a limiting ruler connecting column. The limiting ruler connecting column is located inside the slot and can slide back and forth and lock inside the slot.

[0014] Preferably, the side of the connecting column fixing seat is provided with a threaded hole, so that a screw can be used to lock the limiting ruler connecting column in the slot through the threaded hole.

[0015] Preferably, a vertically penetrating rotating support shaft is provided at the center of the rotating positioning section, with the upper part of the rotating support shaft located outside the left support frame base plate and the lower part of the rotating support shaft located inside the distribution cabinet.

[0016] The power distribution cabinet is equipped with a motor, which drives the rotating support shaft to rotate. At the same time, the rotating support shaft rotates the rotating bending seat around the support shaft.

[0017] The lower section of the rotating support shaft located outside the left support frame base plate is fixedly connected to the center position of the rotating positioning section, and the support shaft is sleeved on the outer circumference of the rotating support shaft located at the upper end of the rotating positioning section.

[0018] Preferably, toothed wheels are fixedly installed on the rotating support shaft inside the distribution cabinet and on the motor shaft of the motor, respectively. The two toothed wheels are connected by a toothed belt, and the rotating support shaft and the motor rotate synchronously through the toothed belt.

[0019] Preferably, the push-pull devices at the front end of the limiting ruler, near the rear end of the rotating bending section, and at the upper end of the right support frame seat plate are respectively a first clamping cylinder, a second clamping cylinder, and a positioning cylinder. The first clamping cylinder, the second clamping cylinder, and the positioning cylinder are respectively connected to a changeover switch via air pipes, and the sequential action of the first clamping cylinder, the second clamping cylinder, and the positioning cylinder is controlled by the changeover switch.

[0020] Preferably, a rotating bending roller is connected to the front end of the piston rod on the second clamping cylinder, and the rotating bending roller can rotate freely;

[0021] The second clamping cylinder is connected to the rotating bending section via a second slide rail. The second clamping cylinder moves in the back and forth direction under the action of the second slide rail.

[0022] The positioning cylinder is connected to the right support frame base plate via a first slide rail, and the positioning cylinder moves left and right under the action of the first slide rail.

[0023] The beneficial effects of this utility model are:

[0024] 1. The bending device has a rotating bending roller connected to the front end of the piston rod on the second clamping cylinder. The rotating bending roller can rotate freely. In this way, during the rotation of the bending section to the right around the support shaft, the rotating bending roller and the end face of the edge strip are continuously in a rolling contact state, which can avoid scratches and wear on the edge strip during the bending process.

[0025] 2. Since the second clamping cylinder is connected to the rotary bending section via the second slide rail, the second clamping cylinder moves back and forth under the action of the second slide rail, thereby adjusting the distance between the rotary bending roller and the support shaft. Furthermore, a connecting column fixing seat is fixedly provided on the left support frame plate at the rear end of the limiting ruler. The front end of the connecting column fixing seat has a slot, and the rear end of the limiting ruler is fixedly provided with a limiting ruler connecting column. The limiting ruler connecting column is located inside the slot and can slide back and forth inside the slot to adjust the distance between the limiting ruler and the first clamping cylinder. This design can meet the bending requirements of edge banding strips of different thicknesses, has a wide range of applications, and has high limitations.

[0026] 3. Since the positioning cylinder is connected to the right support frame seat plate through the first slide rail, the positioning cylinder moves in the left and right directions under the action of the first slide rail. The distance between the positioning cylinder and the rotating bending seat is adjusted according to the actual length of the door frame strip to meet the adjustment of different bending positions on the edge strip corresponding to different lengths of door frame strips.

[0027] 4. Since the support shaft is sleeved on the outer circumference of the upper part of the rotating positioning section on the rotating support shaft, support shafts of different diameters can be replaced according to different bending radius requirements. By sleeved on the rotating support shaft, the support shaft can be quickly replaced, resulting in high work efficiency. Attached Figure Description

[0028] Figure 1 This is a perspective view of the utility model;

[0029] Figure 2This is another perspective view of the present invention;

[0030] Figure 3 This is a top view of the present invention;

[0031] Figure 4 This is a utility model Figure 3 Sectional view of AA;

[0032] Figure 5 This is a utility model Figure 2 Enlarged view of section B in the middle.

[0033] Explanation of symbols in the diagram:

[0034] 1. Support frame assembly; 101. Left support frame; 10101. Distribution cabinet; 10102. Left support frame base plate; 102. Right support frame; 10201. Right support frame base plate; 2. Limiting ruler; 201. Limiting ruler connecting column; 3. First clamping cylinder; 4. Connecting column fixing seat; 5. Changeover switch; 6. Second clamping cylinder; 7. Rotary bending roller; 8. Rotary bending seat; 801. Rotary positioning section; 802. Rotary bending section; 9. Rotary support shaft; 10. Support shaft; 11. Positioning cylinder; 12. First slide rail; 13. Air pipe; 14. Toothed belt; 15. Motor; 16. Second slide rail; 17. Threaded hole. Detailed Implementation

[0035] The present invention will be further described below with reference to the embodiments.

[0036] pass Figures 1-5 It can be seen that the cabinet door uses a edging strip bending device and is equipped with a support frame assembly 1. The support frame assembly 1 includes a left support frame 101 and a right support frame 102. The upper ends of the left support frame 101 and the right support frame 102 are respectively provided with a left support frame seat plate 10102 and a right support frame seat plate 10201. The lower end of the left support frame 101 is provided with a power distribution cabinet 10101.

[0037] The upper end of the left support frame base plate 10102 is provided with a limiting ruler 2 and a rotating bending seat 8. The limiting ruler 2 is located on the left side of the left support frame base plate 10102 and is set along the left-right direction of the support frame assembly 1. The rotating bending seat 8 is located on the right adjacent position of the limiting ruler 2 and is set along the front-back direction of the support frame assembly 1. The rotating bending seat 8 is composed of a rotating positioning section 801 and a rotating bending section 802. The rotating positioning section 801 is located at the upper end of the rotating bending seat 802. At the front end of the 8, the rotating bending section 802 is located at the rear end of the rotating bending seat 8. The upper end of the rotating positioning section 801 is provided with a support shaft 10. The rotating bending section 802 can rotate to the right around the support shaft 10 to perform the bending operation of the edge banding strip. When the left rear end face of the edge banding strip is in contact with the front end face of the limiting ruler 2, the right front end face of the edge banding strip is in contact with the rear end position of the support shaft 10. The limiting ruler 2 and the support shaft 10 play a positioning role in the bending operation of the edge banding strip.

[0038] A push-pull device is provided at the front end of the limiting ruler 2. The push-pull device can be pushed forward to the front end of the limiting ruler 2 and pulled back in the opposite direction to clamp the edge strip between the limiting ruler 2 and the push-pull device, preventing the edge strip from slipping during the bending process and ensuring the accuracy and consistency of the bending position. A push-pull device is provided near the rear end of the rotating bending section 802. The push-pull device is located symmetrically behind the support shaft 10. The push-pull device can be pushed forward to the rear end of the support shaft 10 and pulled back in the opposite direction to clamp the edge strip between the support shaft 10 and the push-pull device. A push-pull device is provided at the upper end of the right support frame seat plate 10201. The push-pull device can be pushed forward to the left and pulled back in the opposite direction. When the edge strip is in contact with the front end of the limiting ruler 2, the edge strip and the push-pull device on the right support frame seat plate 10201 are symmetrically arranged.

[0039] The clamping force of the push-pull device at the front end of the limiting ruler 2 on the edge banding strip is greater than that of the push-pull device on the rotating bending section 802. Since the main function of the push-pull device at the front end of the limiting ruler 2 is to lock, the purpose is to ensure that the edge banding strip does not slide laterally during the bending process. The main function of the push-pull device on the rotating bending section 802 is to clamp the edge banding strip at this position and, while maintaining the edge banding strip in contact with the support shaft 10, slide and rotate to the right around the support shaft 10 to complete the bending operation at that position of the edge banding strip. It can be seen that only when the clamping force of the push-pull device at the front end of the limiting ruler 2 on the edge banding strip is greater than that of the push-pull device on the rotating bending section 802 can the normal bending operation of the edge banding strip be achieved.

[0040] Regarding the specific structure of the push-pull device, in this patent, the push-pull devices at the front end of the limiting ruler 2, the position near the rear end of the rotating bending section 802, and the upper end of the right support frame seat plate 10201 are respectively the first clamping cylinder 3, the second clamping cylinder 6, and the positioning cylinder 11. The first clamping cylinder 3, the second clamping cylinder 6, and the positioning cylinder 11 are respectively connected to the changeover switch 5 through the air pipe 13. The changeover switch 5 controls the sequential action of the first clamping cylinder 3, the second clamping cylinder 6, and the positioning cylinder 11.

[0041] To achieve a better bending effect, in this patent, the piston rod of the second clamping cylinder 6 is connected to a rotating bending roller 7 at its front end. The rotating bending roller 7 can rotate freely. In this way, during the rotation of the rotating bending section 802 to the right around the support shaft 10, the rotating bending roller 7 and the end face of the edge strip are continuously in a rolling fit, which can avoid scratches and wear on the edge strip during the bending process and improve work efficiency.

[0042] To address the bending requirements of edge banding strips with varying thicknesses, this patent connects the second clamping cylinder 6 to the rotating bending section 802 via a second slide rail 16. Under the action of the second slide rail 16, the second clamping cylinder 6 moves in the forward and backward directions, adjusting the distance between the rotating bending roller 7 and the support shaft 10. For example, when the edge banding strip is thicker, the second clamping cylinder 6 can be moved backward to ensure sufficient placement space for the edge banding strip. This design has a wide range of applications and few limitations.

[0043] To address the bending requirements at different locations on the edge banding strip, this patent connects the positioning cylinder 11 to the right support frame plate 10201 via a first slide rail 12. The positioning cylinder 11 moves left and right under the action of the first slide rail 12. The distance between the positioning cylinder 11 and the rotating bending seat 8 is adjusted according to the actual length of the door frame strip. For example, when bending the edge banding strip on one side of the door frame, if the strip is long, the positioning cylinder 11 is moved to the right to lengthen the distance between the positioning cylinder 11 and the rotating bending seat 8, thereby achieving the set size. This design has a wide range of applications and few limitations.

[0044] Regarding the specific structure and working principle of the limiting ruler 2, in this patent, a connecting column fixing seat 4 is fixedly provided on the left support frame base plate 10102 at the rear end of the limiting ruler 2. The front end of the connecting column fixing seat 4 is provided with a slot, and the rear end of the limiting ruler 2 is fixedly provided with a limiting ruler connecting column 201. The limiting ruler connecting column 201 is located inside the slot and can slide back and forth and lock inside the slot. This design solves the problem of different thicknesses of the edging strip. For example, when changing from a thin edging strip to a thick edging strip, the limiting ruler 2 needs to be moved backward to ensure that the edging strip has sufficient placement space. It has a wide range of applications and few limitations.

[0045] Regarding the specific locking method of the limit ruler 2, in this patent, the side of the connecting column fixing seat 4 is provided with a threaded hole 17. A screw can be used to pass through the threaded hole 17 to lock the limit ruler connecting column 201 in the slot. By locking with a screw, the limit ruler 2 can be quickly adjusted and locked. The operation process is simple and quick, and the work efficiency is high.

[0046] Regarding the specific working principle of the rotary bending seat 8, in this patent, a vertically penetrating rotary support shaft 9 is provided at the center of the rotary positioning section 801. The upper part of the rotary support shaft 9 is located outside the left support frame seat plate 10102, and the lower part of the rotary support shaft 9 is located inside the power distribution cabinet 10101. A motor 15 is provided inside the power distribution cabinet 10101. The motor 15 drives the rotary support shaft 9 to rotate. At the same time, the rotary bending seat 8 rotates around the support shaft 10 as the center, completing the bending operation of the edge banding strip. The lower part of the rotary support shaft 9 located outside the left support frame seat plate 10102 is fixedly connected to the center of the rotary positioning section 801, thereby realizing the synchronous rotation of the rotary support shaft 9 and the rotary positioning section 801.

[0047] The support shaft 10 is sleeved on the outer circumference of the upper part of the rotary positioning section 801 on the rotary support shaft 9. Different diameter support shafts 10 can be replaced according to different bending radius requirements. By sleeved on the rotary support shaft 9, the support shaft 10 can be quickly replaced, shortening the preparation time and improving work efficiency.

[0048] Toothed wheels are fixedly installed on the rotating support shaft 9 inside the distribution cabinet 10101 and on the motor shaft of the motor 15, respectively. The two toothed wheels are connected by a toothed belt 14. The rotating support shaft 9 and the motor 15 rotate synchronously through the toothed belt 14. The toothed belt drive method is adopted. Since the rotating support shaft 9, the toothed belt, and the motor 15 are all installed in separate positions, it is more convenient for targeted maintenance and repair in the later stage while ensuring rotational stability and bending efficiency.

[0049] The rotation drive method for the rotary support shaft 9 can also adopt other structures, such as rack and pinion drive, threaded rod drive, etc.

[0050] The operating steps for this edge banding bending device are as follows:

[0051] 1. The changeover switch 5 controls the three cylinders to be in the initial state, that is, the first clamping cylinder 3 and the second clamping cylinder 6 are in the retracted state, and the positioning cylinder 11 is in the extended state.

[0052] 2. Adjust the front and rear positions of the limit ruler 2 and the second clamping cylinder 6 according to the thickness of the edge banding strip to ensure that after the edge banding strip is placed, the left and right sides of the edge banding strip are respectively in contact with the limit ruler 2 and the support shaft 10.

[0053] 3. Adjust the distance between the positioning cylinder 11 and the rotating bending seat 8 according to the actual bending position requirements of the edge banding strip.

[0054] 4. Based on the actual bending curvature of the edge banding strip, install a support shaft 10 of the corresponding diameter on the rotating support shaft 9.

[0055] 5. Adjust the number of motor rotations (15 revolutions) according to the actual bending angle.

[0056] 6. Place both ends of the binding strip between the limiting ruler 2 and the second clamping cylinder 6, and between the rotating bending roller 7 and the support shaft 10, respectively, and the rightmost end face of the binding strip is in contact with the front end face of the piston rod of the positioning cylinder 11.

[0057] 7. Switch the selector switch 5. The first clamping cylinder 3 and the second clamping cylinder 6 move forward to clamp the corresponding position of the edge banding strip. At the same time, the positioning cylinder 11 retracts backward and disengages from the end face of the edge banding strip.

[0058] 8. Press the control switch, and the motor 15 will rotate, driving the rotating bending seat 8 to rotate around the support shaft 10 as the center, thus completing the bending operation of the edge banding strip.

[0059] 9. Switch the selector switch 5 again. The first clamping cylinder 3 and the second clamping cylinder 6 retract backward and disengage from the edge banding strip. At the same time, the positioning cylinder 11 moves forward to complete the bending operation of a single edge banding strip.

[0060] 10. Repeat steps 6-9 to continuously perform the edge banding bending work.

[0061] This edge banding bending device, through the combined action of a cylinder and a motor, can improve the bending efficiency of the edge banding. Through the combined action of the rotating bending roller 7, the rotating bending seat 8, and the support shaft 10, it can ensure the consistency of the bending curvature of the edge banding and improve the yield rate.

[0062] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A bending device for a cabinet door trim, characterized by: Support frame assembly is arranged, and the support frame assembly comprises a left support frame and a right support frame; Upper end positions of the left support frame and the right support frame are respectively provided with a left support frame seat plate and a right support frame seat plate, and a power distribution cabinet is arranged at a lower end position of the left support frame; An upper end portion of the left support frame seat plate is provided with a limiting ruler and a rotary bending seat, the limiting ruler is arranged at a left position on the left support frame seat plate, the limiting ruler is arranged along the left-right direction of the support frame assembly, the rotary bending seat is arranged at a right position adjacent to the limiting ruler, and the rotary bending seat is arranged along the front-rear direction of the support frame assembly; The rotary bending seat comprises a rotary positioning section and a rotary bending section, the rotary positioning section is arranged at a front end position of the rotary bending seat, the rotary bending section is arranged at a rear end position of the rotary bending seat, an upper end of the rotary positioning section is provided with a support shaft, the rotary bending section can rotate to the right side with the support shaft as the center, when a left rear end surface of the edge covering strip is attached to a front end surface of the limiting ruler, a right front end surface of the edge covering strip is attached to a rear end position of the support shaft; A front end position of the limiting ruler is provided with a push-pull device, the push-pull device can push and reversely pull the front end surface of the limiting ruler, so as to clamp the edge covering strip between the limiting ruler and the push-pull device; A rear end position of the rotary bending section is provided with a push-pull device, the push-pull device is arranged at a symmetric position behind the support shaft, the push-pull device can push and reversely pull the rear end position of the support shaft, so as to clamp the edge covering strip between the support shaft and the push-pull device; The clamping force of the push-pull device at the front end of the limiting ruler on the edge covering strip is greater than the clamping force of the push-pull device on the rotary bending section on the edge covering strip; An upper end position of the right support frame seat plate is provided with a push-pull device, the push-pull device can push and reversely pull the left position, when the edge covering strip is attached to the front end surface of the limiting ruler, the edge covering strip and the push-pull device on the right support frame seat plate are arranged symmetrically.

2. The edge strip bending device for a cabinet door according to claim 1, characterized in that: A connecting column fixing seat is fixedly arranged at a position of the left support frame seat plate behind the limiting ruler, a front end position of the connecting column fixing seat is provided with a slot hole, a rear end position of the limiting ruler is fixedly provided with a limiting ruler connecting column, the limiting ruler connecting column is arranged in the slot hole, and the limiting ruler connecting column can slide and lock in the slot hole.

3. The edge strip bending device for a cabinet door according to claim 2, characterized in that: A side surface of the connecting column fixing seat is provided with a threaded hole, and a screw can be used to lock the limiting ruler connecting column in the slot hole.

4. The edge strip bending device for a cabinet door according to claim 1, characterized in that: A central position of the rotary positioning section is provided with a vertical rotating support shaft, an upper section of the rotating support shaft is arranged outside the left support frame seat plate, and a lower section of the rotating support shaft is arranged inside the power distribution cabinet; The power distribution cabinet is provided with a motor, the motor drives the rotating support shaft to rotate, and the rotating support shaft rotates while driving the rotary bending seat to rotate with the support shaft as the center. The lower section of the rotating support shaft outside the left support frame seat plate is fixedly connected with the central position of the rotary positioning section, and the support shaft is sleeved on the outer circumference of the rotating support shaft at the upper end position of the rotary positioning section.

5. The edge strip bending device for cabinet doors according to claim 4, characterized in that: The position of the rotating support shaft inside the power distribution cabinet and the motor shaft of the motor are respectively fixed with toothed wheels, the two toothed wheels are connected through a toothed belt, and the rotating support shaft and the motor are synchronously rotated through the toothed belt.

6. The edge strip bending device for cabinet doors according to claim 1, characterized in that: The front end position of the limiting ruler, the rotating bending section near the rear end position, and the upper end position of the right side support frame seat plate are respectively connected with the first clamping air cylinder, the second clamping air cylinder, and the positioning air cylinder, the first clamping air cylinder, the second clamping air cylinder, and the positioning air cylinder are respectively connected with the conversion switch through the air pipe, and the sequential actions of the first clamping air cylinder, the second clamping air cylinder, and the positioning air cylinder are controlled through the conversion switch.

7. The edge strip bending device for cabinet doors according to claim 6, characterized in that: The front end position of the piston rod of the second clamping air cylinder is connected with the rotating bending roller shaft, and the rotating bending roller shaft can rotate freely. The second clamping air cylinder and the rotating bending section are connected through the second sliding rail, and the second clamping air cylinder moves in the front-rear direction under the action of the second sliding rail. The positioning air cylinder and the right side support frame seat plate are connected through the first sliding rail, and the positioning air cylinder moves in the left-right direction under the action of the first sliding rail.

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