Bending device

Abstract

The utility model relates to the technical field of door pocket line processing, in particular to a bending device which comprises two bending mechanisms which are symmetrically arranged. The bending mechanism comprises two oppositely-arranged vertical bending guide assemblies, a connecting rod arranged between the two vertical bending guide assemblies and a bending power assembly driving the connecting rod to move along the vertical bending guide assemblies, and further comprises a turnover assembly linked with the connecting rod and used for inwards folding the bent part of the plate. The vertical bending guide assembly is integrally in a one-third circular arc shape, the turnover assembly and the connecting rod can turn over by 90 degrees around the circular arc center of the vertical bending guide assembly under the guiding effect of the vertical bending guide assembly, and the vertical bending mechanism has the advantages of being compact and clear in structure and high in production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of door casing processing, in particular to a bending device. Background Art

[0002] The door frame is a soft decorative line that wraps the wall. The invention patent with patent application number 202110448626.9 discloses a paint-free multi-layer solid wood bent door frame and its bending process. A film is affixed to the surface layer of the board, and the film covers the entire surface to protect the surface layer from being scratched during processing. The board with the film is then transported to the machining platform and grooved through mechanical processing. After the grooving is completed, the substrate is fixed to the base with glue; then the liquefied EVA hot melt adhesive solvent is injected into the glue injection groove. After the hot melt adhesive is injected, the bent part is immediately folded inward by the bending equipment, and the bent part is bonded together with the hot melt adhesive, and the hot melt adhesive fills the entire glue injection groove.

[0003] There are many types of bending equipment for producing door frames on the market. The main component of the bending equipment is the bending device. However, when in use, the bending device cannot perform fast bending and forming operations well, and for plates with poor quality, it will cause cracks and cracks in the bending part. In addition, most of the bending mechanisms also have complex structural problems. For this reason, we propose a bending device. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a bending device with compact and clear structure and high production efficiency in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bending device, comprising two symmetrically arranged bending mechanisms, the bending mechanisms comprising two relatively arranged vertical bending guide assemblies, a connecting rod arranged between the two vertical bending guide assemblies, and a bending power assembly driving the connecting rod to move along the vertical bending guide assembly, the bending mechanism also includes a folding assembly linked with the connecting rod for folding the bending portion of the plate inward, the vertical bending guide assembly as a whole is in the shape of one-third of a circular arc, and the folding assembly and the connecting rod both realize a 90° flip around the center of the circular arc of the vertical bending guide assembly under the guiding action of the vertical bending guide assembly.

[0006] The utility model with the above-mentioned characteristics: the vertical bending guide assembly is arranged as a whole into a one-third arc shape, and the 90° flipping of the folding assembly is realized with the cooperation of the bending power assembly and the connecting rod. The bending mechanism has a simple composition, clear division of labor among the groups, and a simple working process. Since two groups of folding assemblies are arranged, the bending parts on both sides of the plate can be folded inward at the same time, thereby improving production efficiency.

[0007] A further arrangement of the utility model is that the folding assembly includes a bending mounting plate linked to a connecting rod, a plurality of evenly distributed connecting plates are provided in the length direction of the bending mounting plate, the suspended end of the connecting plate is connected to a bending plate for supporting the bending portion of the plate, the bending plate is parallel to the bending mounting plate, and a bending auxiliary part capable of supporting the side of the bending portion of the plate is provided on the connecting plate.

[0008] The utility model with the above-mentioned characteristics: by arranging a connecting plate on the bending mounting plate, the bending plate and the transmission mechanism are infinitely close to each other, which is convenient for supporting the bending part of the plate, and under the connecting action of the connecting plate, the bending plate and the bending mounting plate are linked, and the bending plate can bend the bending part when it is flipped; the bending auxiliary part abuts against the thickness surface of the bending part in a flat state when it is not flipped, and the bending auxiliary part always keeps abutting against the bending part during bending, which can ensure that the bending part realizes a 90° bend. If there is no bending auxiliary part, it cannot be ensured that the movement center of the bending mechanism coincides with the center of the bending guide assembly, resulting in an incomplete bending arc of the product, forming edges and corners, causing cracks on the surface of the product, and affecting the product quality. The bending auxiliary part is in a state of abutting against the side of the bending part when it is not flipped, which has a guiding effect on the plate and prevents the plate from deflecting during transmission.

[0009] A further configuration of the utility model is that the bending auxiliary component includes a cylinder and a pressure component arranged at the output end of the cylinder, the pressure component includes a first connecting surface detachably connected to the output end of the cylinder, a second connecting surface abutting against the thickness surface of the bending portion of the plate, and a third connecting surface connecting the first connecting surface and the second connecting surface.

[0010] The utility model with the above characteristics adopts a combination of a cylinder and a pressure piece as a bending auxiliary piece. When the transmission mechanism conveys the plate, the bending auxiliary piece can be extended to press against the thickness surface of the substrate, which has a guiding effect on the conveying of the substrate and can prevent the substrate from shifting during transportation.

[0011] A further configuration of the utility model is that the vertical bending guide assembly includes an arc-shaped guide seat, the guide seat is provided with a guide rack track in the shape of one-third of an arc, the guide rack track overlaps with the center of the guide seat, and the end of the connecting rod is provided with a guide gear meshing with the guide rack track.

[0012] The utility model with the above characteristics: the connecting rod and the guide seat are connected by gear meshing, so that the connecting rod can move along the guide seat under the drive of the bending power assembly to achieve a 90° flip of the connecting rod. The connection method between the connecting rod and the guide seat is simple and the transmission accuracy is high; the guide rack track overlaps with the center of the guide seat to ensure the bending accuracy, and the center of the two is the bending center.

[0013] A further configuration of the utility model is: a pulley track in the shape of one-third of a circle is provided on the outer side surface of the guide rack track, pulleys slidably connected thereto are provided on both sides of the pulley track, a pulley mounting plate is provided between the pulleys, the connecting rod is connected to the pulley mounting plate, and the folding assembly is linked to the connecting rod via the pulley mounting plate.

[0014] The utility model with the above characteristics: a pulley track is directly arranged on the guide rack track, the number of components is reduced, and the linkage structure of the folding assembly and the connecting rod is simplified; pulleys are arranged on both sides of the pulley track to improve the connection stability and sliding smoothness between the pulley mounting plate and the pulley track.

[0015] A further arrangement of the utility model is that: the sides of the two bending mechanisms are respectively provided with a position fine-tuning assembly and a position adjustment assembly for adjusting the position of the vertical bending guide assembly; a slider seat is installed at the bottom of the guide seat, the slider seat is slidably connected to a guide rail, the slider seats of the two guide seats are connected by a connecting strip, the position fine-tuning assembly includes a screw seat erected on one side of the slider seat and a screw threadedly connected to the screw seat, the end of the screw is against the slider seat, the position adjustment assembly includes a plurality of turbine boxes, transmission rods are connected between the two turbine boxes, the turbine boxes are all connected to a lead screw linked to the connecting strip, and one side of one of the turbine boxes is connected to an operating handle.

[0016] The utility model with the above characteristics: the main adjusting part of the position fine-tuning component is a screw, and its adjustment range is small; the main adjusting part of the position adjustment component is a lead screw, and its adjustment range is large; when the width of the substrate changes, the width and thickness of the wooden board base and the bending part also change accordingly, resulting in the bending center of the board being unable to coincide with the center of the circle of the bending guide component. For this reason, it is necessary to adjust the position of the bending guide component to calibrate the bending center. Refer to the appendix of the invention patent specification of 202110448626.9 Figure 2 It can be seen that the widths of the bending parts on both sides are inconsistent, one side is a narrow side and the other side is a wide side. The side of the substrate close to the narrow side is the reference plane, and its position needs to be kept unchanged. Therefore, when the thickness of the plate changes, the bending center of the narrow side only changes slightly, and the bending center can be calibrated by using a position fine-tuning component. The adjustment range of the bending center on the wide side is the superposition of the substrate width and the plate thickness. Therefore, a position adjustment component is needed on the wide side to calibrate the bending center.

[0017] The utility model is further configured as follows: the bending power assembly includes a motor, a driving gear sleeved on the output end of the motor, a passive gear sleeved on the connecting rod, a synchronous belt wound between the driving gear and the passive gear, a motor mounting box is installed on the folding assembly, the output end of the motor, the driving gear, the passive gear and the synchronous belt are all located in the motor mounting box, and the motor end face is detachably connected to the motor mounting box by fasteners.

[0018] The utility model with the above characteristics: a passive gear linked to the active gear is sleeved on the connecting rod, so as to achieve the purpose of the motor driving the connecting rod to rotate. The bending power assembly has a simple structure and is easy to maintain; the motor is installed on the folding assembly by arranging a motor mounting box. At the same time, since the connecting rod passes through the motor mounting box, the motor mounting box further strengthens the connection between the folding assembly and the connecting rod; the motor output end, the active gear, the passive gear and the synchronous belt are all arranged in the motor mounting box, which can prevent dust and other impurities from affecting the normal operation of the bending power assembly and improve its service life.

[0019] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the bending mechanism of an embodiment of the utility model.

[0022] Figure 3 It is a schematic structural diagram of a vertical bending guide assembly according to an embodiment of the utility model.

[0023] Figure 4 It is a structural schematic diagram of a bending auxiliary component according to an embodiment of the utility model.

[0024] Figure 5 It is a structural schematic diagram of the bending power assembly of an embodiment of the utility model.

[0025] Figure 6 It is a schematic diagram of the structure of the door frame when the door frame is unfolded according to the embodiment of the utility model.

[0026] Figure 7 It is a schematic structural diagram of the finished door frame product of an embodiment of the utility model. DETAILED DESCRIPTION

[0027] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0028] like Figure 1-5 A bending device shown includes two symmetrically arranged bending mechanisms 1, the bending mechanism 1 includes two relatively arranged vertical bending guide assemblies 11, a connecting rod 12 arranged between the two vertical bending guide assemblies 11, and a bending power assembly 13 driving the connecting rod 12 to move along the vertical bending guide assembly 11. The bending mechanism 1 also includes a folding assembly 14 that is linked with the connecting rod 12 and is used to fold the bending part of the plate inward. The vertical bending guide assembly 11 is generally in the shape of one-third of a circular arc, and the folding assembly 14 and the connecting rod 12 are both flipped 90° under the guiding action of the vertical bending guide assembly 11.

[0029] The folding assembly 14 includes a bending mounting plate 141 linked to the connecting rod 12, and a plurality of evenly distributed connecting plates 142 are provided in the length direction of the bending mounting plate 141, and a bending plate 143 for supporting the bending portion of the plate is connected to the suspended end of the connecting plate 142, and the bending plate 143 is parallel to the bending mounting plate 141, and a bending auxiliary member 144 capable of resisting the side of the bending portion of the plate is provided on the connecting plate 142, and the bending auxiliary member 144 includes a cylinder 1441 and a pressing member 1442 arranged at the output end of the cylinder 1441, and the pressing member 1442 includes a first connecting surface 14421 detachably connected to the output end of the cylinder 1441, a second connecting surface 14422 abutting against the thickness surface of the bending portion of the plate, and a third connecting surface 14423 connecting the first connecting surface 14421 and the second connecting surface 14422.

[0030] The vertical bending guide assembly 11 includes an arc-shaped guide seat 111, on which a guide rack track 112 in the shape of one-third of an arc is provided. The guide rack track 112 overlaps with the center of the guide seat 111, and a guide gear 113 meshing with the guide rack track 112 is provided at the end of the connecting rod 12. A pulley track 1121 in the shape of one-third of an arc is provided on the outer surface of the guide rack track 112. Both sides of the pulley track 1121 are provided with pulleys 114 slidably connected thereto, and a pulley mounting plate 115 is provided between the pulleys 114. The connecting rod 12 is connected to the pulley mounting plate 115, and the folding assembly 14 is linked to the connecting rod 12 via the pulley mounting plate 115.

[0031] The bending power assembly 13 includes a motor 131, a driving wheel 132 mounted on the output end of the motor 131, a passive wheel 133 mounted on the connecting rod 12, a synchronous belt 134 wound between the driving wheel 132 and the passive wheel 133, and a motor mounting box 135 installed on the folding assembly 14. The output end of the motor 131, the driving wheel 132, the passive wheel 133 and the synchronous belt 134 are all located in the motor mounting box 135, and the end face of the motor 131 is detachably connected to the motor mounting box 135 by fasteners.

[0032] The sides of the two bending mechanisms 1 are respectively provided with a position fine-adjustment component 5 and a position adjustment component 6 for adjusting the position of the vertical bending guide component 11. A slider seat 116 is installed at the bottom of the guide seat 111. The slider seat 116 is slidably connected to the guide rail 117. The slider seats 116 of the two guide seats 111 are connected by a connecting strip 118. The position fine-adjustment component 5 includes a screw seat 51 erected on one side of the slider seat 116 and a screw 52 threadedly connected to the screw seat 51, and the end of the screw 52 is against the slider seat 116. The position adjustment component 6 includes a plurality of turbine boxes 61, and a transmission rod 62 is connected between each of the turbine boxes 61. The turbine boxes 61 are all connected to a lead screw (not shown in the figure) linked to the connecting strip 118, and one side of one of the turbine boxes 61 is connected to an operating handle 63.

[0033] like Figure 6 The door frame in the unfolded state is shown in FIG. 1 , which is referred to as the material, wherein a is the base material, b is the plate material, b1 is the narrow side bending part, b2 is the base, and b3 is the wide side bending part. Figure 7 The figure shows the door frame after bending. When the bending device is used for production, the narrow side bending part and the wide side bending part are respectively placed on the bending plates on both sides. In order to adapt the wide side bending part and the narrow side bending part, the bending plates need to be set into wide side bending plates and narrow side bending plates. The motor in the bending power assembly is started, and the connecting rod is driven to rotate by the synchronous belt. The guide gear rotates under the drive of the connecting rod and climbs up along the guide rack track. Since the guide rack track is in the shape of one-third of a circular arc, the bending plate linked with the connecting rod realizes a 90° flip, and the bending part placed on the bending plate is folded inward. When bending, the bending auxiliary parts are in contact with the thickness surface of the bending part, and the symmetrically arranged bending auxiliary parts have a clamping effect on the plate. During the bending process, the bending auxiliary parts are always in contact with the plate to ensure that the bending is in place. Figure 7 Door casing shown.

[0034] When bending, it is necessary to determine the bending center of the plate. The bending center needs to be adjusted according to the actual situation. Its approximate position is in the glue injection groove. The position fine-tuning component and the position adjustment component need to be adjusted to make the bending center of the plate overlap with the center of the circle of the guide seat. The position fine-tuning component moves the guide seat by turning the screw, thereby driving the bending plate to move. The position adjustment component transmits power through the turbine box by turning the operating handle, and the lead screw drives the guide seat to move, thereby driving the bending plate to move. The main adjusting part of the position fine-tuning component is the screw, and its adjustment range is small. The main adjusting part of the position adjustment component is the lead screw, and its adjustment range is large. When the width of the substrate changes, the base of the wooden board and the bending The width and thickness of the bending part also change accordingly, resulting in the inability of the bending center of the plate to coincide with the center of the circle of the vertical bending guide assembly. For this reason, it is necessary to adjust the position of the vertical bending guide assembly to calibrate the bending center. It is known that the two sides of the plate are the wide side bending part and the narrow side bending part, respectively. The side of the substrate close to the narrow side is the reference plane, and its position needs to be kept unchanged. Therefore, when the thickness of the plate changes, the bending center of the narrow side only changes slightly. Only the position fine-tuning assembly is needed to achieve the calibration of the bending center. The adjustment range of the bending center on the wide side is the superposition of the substrate width and the plate thickness. Therefore, a position adjustment assembly is needed on the wide side to calibrate the bending center.

Claims

1. A bending device, characterized in that: The invention comprises two symmetrically arranged bending mechanisms, which comprise two relatively arranged vertical bending guide assemblies, a connecting rod arranged between the two vertical bending guide assemblies, and a bending power assembly driving the connecting rod to move along the vertical bending guide assemblies. The bending mechanism also comprises a folding assembly linked with the connecting rod for folding the bending part of the plate inward. The vertical bending guide assembly is in the shape of one-third of a circular arc as a whole. Under the guiding action of the vertical bending guide assembly, the folding assembly and the connecting rod both realize a 90° flip around the center of the circular arc of the vertical bending guide assembly.

2. The bending device according to claim 1, characterized in that: The folding assembly includes a bending mounting plate linked to a connecting rod, a plurality of evenly distributed connecting plates are provided in the length direction of the bending mounting plate, the suspended end of the connecting plate is connected to a bending plate for supporting the bending portion of the plate, the bending plate is parallel to the bending mounting plate, and a bending auxiliary part capable of supporting the side of the bending portion of the plate is provided on the connecting plate.

3. The bending device according to claim 2, characterized in that: The bending auxiliary part includes a cylinder and a pressure part arranged at the output end of the cylinder. The pressure part includes a first connecting surface detachably connected to the output end of the cylinder, a second connecting surface abutting against the thickness surface of the bending part of the plate, and a third connecting surface connecting the first connecting surface and the second connecting surface.

4. The bending device according to any one of claims 1 to 3, characterized in that: The vertical bending guide assembly includes an arc-shaped guide seat, on which is provided a guide rack track in the shape of one-third of an arc, the guide rack track overlaps with the center of the guide seat, and the end of the connecting rod is provided with a guide gear meshing with the guide rack track.

5. The bending device according to claim 4, characterized in that: A pulley track in the shape of one-third of a circular arc is provided on the outer side surface of the guide rack track, pulleys slidably connected thereto are provided on both sides of the pulley track, a pulley mounting plate is provided between the pulleys, the connecting rod is connected to the pulley mounting plate, and the folding assembly is linked to the connecting rod via the pulley mounting plate.

6. The bending device according to claim 4, characterized in that: The sides of the two bending mechanisms are respectively provided with a position fine-adjustment component and a position adjustment component for adjusting the position of the vertical bending guide component. A slider seat is installed at the bottom of the guide seat, and the slider seat is slidably connected to a guide rail. The slider seats of the two guide seats are connected by a connecting strip. The position fine-adjustment component includes a screw seat erected on one side of the slider seat and a screw threadedly connected to the screw seat, and the end of the screw is against the slider seat. The position adjustment component includes a plurality of turbine boxes, and a transmission rod is connected between each of the turbine boxes. The turbine boxes are all connected with a lead screw linked to the connecting strip, and one side of one of the turbine boxes is connected to an operating handle.

7. The bending device according to any one of claims 1 to 3, characterized in that: The bending power assembly includes a motor, a driving gear sleeved on the output end of the motor, a passive gear sleeved on the connecting rod, a synchronous belt wound between the driving gear and the passive gear, a motor mounting box installed on the folding assembly, the output end of the motor, the driving gear, the passive gear and the synchronous belt are all located in the motor mounting box, and the motor end face is detachably connected to the motor mounting box by fasteners.

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