Bending device for connecting piece of television bracket

Abstract

A bending device for a connecting piece of a television support comprises a conveying belt driven by a driving wheel and a driven wheel, protrusions are installed on the conveying belt at equal intervals, bending positioning plates are installed on the two sides of the conveying belt, a bending mechanism is installed on the upper left portion of the conveying belt, and deviation rectifying mechanisms are horizontally and symmetrically installed on the right portion of the middle of the conveying belt. In the working process, the protrusion conveys the connecting piece of the television support from left to right at a constant speed, the bending die moves rightwards and moves downwards at the same time through combined movement of the bending air cylinder and the horizontal pushing air cylinder, the connecting piece of the television support is bent, and the bent connecting piece of the television support continues to move rightwards at a constant speed. The connecting piece of the television support is corrected after passing through the correcting mechanism, and springback caused by elastic memory of materials of the connecting piece is eliminated. According to the device, the thin-wall part is bent through the air cylinder, the resilience value of the thin-wall part is corrected through the deviation correcting wheel of the deviation correcting mechanism, the device is simple and easy to operate, meanwhile, cost is saved, and the forming precision of a product is high.

Description

Technical Field

[0001] The utility model relates to a bending device for a connecting piece of a television bracket. Background Art

[0002] Television is indispensable in people's lives, and as an important accessory of television, the TV stand can locate the installation of the television and adjust the angle and direction of the television. The stand is composed of many parts, and some connectors are made of thin-walled plates. It is a bit of a waste of resources to use hydraulic stamping to bend the thin-walled plates. At the same time, the thin-walled plates also have an elastic memory problem, and a certain amount of rebound will be generated after stamping. Utility Model Content

[0003] In view of the shortcomings existing in the above problems, the utility model provides a bending device for a connecting piece of a TV stand.

[0004] To achieve the above-mentioned purpose, the utility model provides a bending device for a connecting piece of a TV stand, comprising a transmission belt driven by a driving wheel and a driven wheel, protrusions are installed at equal intervals on the transmission belt, bending positioning plates are installed on both sides of the transmission belt, a bending mechanism is installed on the upper left part of the transmission belt, and a correction mechanism is installed horizontally and symmetrically on the right side of the middle of the transmission belt.

[0005] As a further improvement of the utility model, the driving wheel is connected to the power motor through a flange connection.

[0006] As a further improvement of the utility model, the protrusion is cylindrical, the diameter of the cylinder is smaller than the width of the long groove, and the height of the cylinder is greater than the thickness of the connecting piece of the TV bracket.

[0007] As a further improvement of the utility model, the cross-section of the bent positioning plate is in the shape of a right-angled trapezoid, and the side close to the conveyor belt is a right angle.

[0008] As a further improvement of the utility model, the bending mechanism includes a bending die, the bending die is in the shape of П, the bending die is connected to the bending cylinder through a connecting piece, the upper part of the bending cylinder is fixedly connected to the guide piece, and the guide piece is connected to the guide groove slideway through dovetail groove processing.

[0009] As a further improvement of the utility model, the left side of the guide member is connected to a push cylinder, and the speed of the push cylinder moving to the right is consistent with the speed of the conveyor belt, and at the same time, it returns to the left quickly.

[0010] As a further improvement of the utility model, the deviation correction mechanism includes a fixed long shaft, bearings are installed at the upper and lower positions of the long shaft, the bearings are limited by positioning sleeves, the lower bearing is positioned by a shaft shoulder, and the upper bearing is positioned by a shaft clamp. The outer side of the bearing is connected to a deviation correction wheel, and the lower part of the deviation correction wheel is positioned by a hole clamp.

[0011] As a further improvement of the utility model, the center line of the correcting wheel forms an angle with the vertical direction, ensuring that the correcting wheel and the trapezoidal surface of the bending positioning plate remain level.

[0012] The beneficial effects of the utility model are:

[0013] The device uses a cylinder to bend thin-walled parts, and achieves online bending by matching the movement of the push cylinder with the movement of the conveyor belt, thereby improving the bending efficiency. The rebound amount is corrected by the correction wheel of the correction mechanism. The product has high molding accuracy, the device is simple and easy to operate, and it saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of a bending device of a connecting piece of a TV stand according to the utility model;

[0015] Figure 2 It is a side view of a bending device of a connecting piece of a TV stand according to the utility model;

[0016] Figure 3 for Figure 1 A partial top view of

[0017] Figure 4 is a cross-sectional view of the deviation correction mechanism of component 8;

[0018] Figure 5 This is the parts drawing of the connecting parts of the TV stand (before processing);

[0019] Figure 6 Parts drawing of the TV stand's connecting parts (after processing).

[0020] In the figure: 1. driving wheel; 11. flange connection; 2. driven wheel; 3. transmission belt; 31. protrusion; 4. power motor; 5. bending positioning plate; 6. bending mechanism; 61. bending die; 62. bending cylinder; 63. connecting piece; 64. guide piece; 65. guide groove; 66. push cylinder; 7. connecting piece of TV stand; 71. long groove; 72. folding edge; 8. correction mechanism; 81. long shaft; 82. correction wheel; 83. bearing; 84. positioning sleeve; 85. shaft clamp; 86. hole clamp; 87. shaft shoulder. DETAILED DESCRIPTION

[0021] like Figure 1-6As shown, the bending device of the connecting piece of a TV stand described in the utility model comprises a transmission belt 3 driven by a driving wheel 1 and a driven wheel 2, the driving wheel 1 is connected to a power motor 4 through a flange connector 11, and protrusions 31 are installed on the transmission belt 3 at equal intervals, the protrusions 31 are cylindrical, the diameter of the cylinder is smaller than the width of the long groove 71, and the height of the cylinder is greater than the thickness of the connecting piece 7 of the TV stand. Bending positioning plates 5 are installed on both sides of the transmission belt 3, and the cross-section of the bending positioning plates 5 is in the shape of a right-angle trapezoid, and the side close to the transmission belt 3 is a right angle. A bending mechanism 6 is installed on the upper left part of the conveyor belt 3, and the bending mechanism 6 includes a bending die 61, and the bending die 61 is in the shape of П. The bending die 61 is connected to the bending cylinder 62 through a connecting piece 63. The upper part of the bending cylinder 62 is fixedly connected to a guide piece 64, and the guide piece 64 is connected to the guide groove 65 slideway through a dovetail groove processing. The left side of the guide piece 64 is connected to a push cylinder 66. The speed of the push cylinder 66 moving to the right is consistent with the speed of the conveyor belt 3, and it returns to the left quickly. A correction mechanism 8 is installed horizontally and symmetrically at the middle right side of the conveyor belt 3, and the correction mechanism 8 includes a fixed long axis 81, bearings 83 are installed at the upper and lower positions of the long axis, the bearings 83 are limited by positioning sleeves 84, the lower bearing 83 is positioned by a shaft shoulder, and the upper bearing 83 is positioned by a shaft clamp 85. The outer side of the bearing 83 is connected to a correction wheel 82, and the lower part of the correction wheel 82 is positioned by a hole clamp 87. The center line of the correction wheel 82 forms an angle with the vertical direction to ensure that the correction wheel 82 and the trapezoidal surface of the bending positioning plate 5 remain level.

[0022] The device uses a cylinder to bend thin-walled parts, and achieves online bending by matching the movement of the push cylinder with the movement of the conveyor belt, thereby improving the bending efficiency. The rebound amount is corrected by the correction wheel of the correction mechanism. The product has high molding accuracy, the device is simple and easy to operate, and it saves costs.

[0023] In order to facilitate the understanding of the present invention, the following description is given in conjunction with the accompanying drawings during specific use;

[0024] like Figure 5 The TV stand component 7 (before processing) shown in the figure has a long groove 71 processed in the middle, and its two sides are bent into Figure 6 shown.

[0025] When working, the protrusion will connect the TV bracket (unprocessed Figure 5As shown in the figure, the connecting parts of the TV stand are uniformly transported from left to right through the long slot 71 to reach the bottom of the bending die. The bending die moves downward through the bending cylinder, and bends the connecting parts of the TV stand through the action of the bending positioning plate. At the same time, the horizontal push cylinder moves the bending die to the right, and the movement speed is consistent with the conveyor belt, so that online bending is achieved. Since the connecting parts of the TV stand are thin-walled parts, there is a certain rebound, so that the actual bending angle is greater than 90°. After bending, the connecting parts of the TV stand continue to move to the right at a uniform speed and reach the correction mechanism. The correction wheel and the inclined surface of the bending positioning plate squeeze the folded edge 72 to the middle. After rebounding, the bending angle is guaranteed to be 90°, eliminating the rebound caused by the elastic memory of the material. After one-time molding is completed, the bending cylinder goes up, and the horizontal push cylinder quickly moves to the left, waiting for the next cycle.

[0026] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A bending device for a connecting piece of a TV stand, characterized in that: The invention comprises a transmission belt (3) driven by a driving wheel (1) and a driven wheel (2), protrusions (31) being installed at equal intervals on the transmission belt (3), bending positioning plates (5) being installed on both sides of the transmission belt (3), a bending mechanism (6) being installed on the upper left part of the transmission belt (3), and a deviation correction mechanism (8) being installed horizontally and symmetrically on the right side of the middle of the transmission belt (3).

2. The bending device for the connecting piece of a TV stand according to claim 1, characterized in that: The driving wheel (1) is connected to the power motor (4) via a flange connection (11).

3. The bending device for the connecting piece of a TV stand according to claim 1, characterized in that: The protrusion (31) is cylindrical, the diameter of the cylinder is smaller than the width of the long groove (71), and the height of the cylinder is greater than the thickness of the connecting piece (7) of the TV stand.

4. The bending device for the connecting piece of a TV stand according to claim 1, characterized in that: The cross section of the bent positioning plate (5) is in the shape of a right-angled trapezoid, and the side close to the conveyor belt (3) is a right angle.

5. The bending device for the connecting piece of a TV stand according to claim 1, characterized in that: The bending mechanism (6) comprises a bending die (61), the bending die (61) is in the shape of a ?, the bending die (61) is connected to a bending cylinder (62) via a connecting piece (63), the upper part of the bending cylinder (62) is fixedly connected to a guide piece (64), and the guide piece (64) is connected to a guide groove (65) slideway via dovetail groove processing.

6. The bending device for the connecting piece of a TV stand according to claim 5, characterized in that: The left side of the guide member (64) is connected to a push cylinder (66), and the speed of the push cylinder (66) moving to the right is consistent with the speed of the conveyor belt (3), and at the same time, it returns to the left quickly.

7. The bending device for the connecting piece of a TV stand according to claim 1, characterized in that: The deflection correction mechanism (8) comprises a fixed long shaft (81), bearings (83) are installed at the upper and lower positions of the long shaft, the bearings (83) are limited by positioning sleeves (84), the lower bearing (83) is positioned by a shaft shoulder, the upper bearing (83) is positioned by a shaft clamp (85), the outer side of the bearing (83) is connected to a deflection correction wheel (82), and the lower part of the deflection correction wheel (82) is positioned by a hole clamp (87).

8. The bending device for the connecting piece of a TV stand according to claim 7, characterized in that: The center line of the deflection correcting wheel (82) forms an angle with the vertical direction, ensuring that the deflection correcting wheel (82) and the trapezoidal surface of the bending positioning plate (5) remain level.

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