A screw tensioning mechanism for coating automation equipment

Abstract

The present invention discloses a screw tensioning mechanism for coating automation equipment, comprising a frame, a movable plate slidably connected to the frame, a mounting cavity provided in the frame, a sprocket support seat fixedly connected to the movable plate, a tensioning sprocket rotatably connected to the sprocket support seat, a rotating shaft fixedly connected to the center of the tensioning sprocket, the rotating shaft passes through the movable plate and the frame and is rotatably connected to a bearing, a bearing sleeve is sleeved on the bearing, a first movable rod is fixedly connected to one side of the bearing sleeve, and a second movable rod is fixedly connected to the other side of the bearing sleeve. The present invention realizes automatic adjustment by enabling the tensioning wheel to move back and forth under the interaction of structures such as a clamping plate, a connecting rod, a second spring, a fixed block, a clamping block, a threaded rod, a threaded block, and a stopper, and can be flexibly used according to different needs.

Description

Technical Field

[0001] The present invention relates to the technical field of coating automation equipment, and in particular to a screw tensioning mechanism for coating automation equipment. Background Art

[0002] Painting refers to covering the metal and non-metal surfaces with a protective layer or decorative layer. With the development of industrial technology, painting has evolved from manual to industrial automation, and the degree of automation is getting higher and higher, so the application of painting production lines is becoming more and more extensive, and has penetrated into many fields of the national economy. Since the painting automation equipment uses chains to transmit products, the chain needs a tensioning mechanism to maintain the chain tension during use. Traditional chain tensioning mechanisms mostly use counterweights and tensioning wheels to achieve tensioning effects, but since the gravity of the counterweight is fixed, the tensioning effect cannot be flexibly adjusted according to demand. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: since the coating automation equipment uses a chain to transmit products, the chain requires a tensioning mechanism to maintain the chain tightness during use. The traditional chain tensioning mechanism mostly uses a counterweight block and a tensioning wheel to achieve the tensioning effect, but since the gravity of the counterweight block is fixed, the tensioning effect cannot be flexibly adjusted according to demand.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a screw tensioning mechanism for coating automation equipment of the present invention comprises a frame, a movable plate is slidably connected to the frame, a mounting cavity is provided in the frame, a sprocket support seat is fixedly connected to the movable plate, a tensioning sprocket is rotatably connected to the sprocket support seat, a rotating shaft is fixedly connected to the center of the tensioning sprocket, the rotating shaft passes through the movable plate and the frame and is rotatably connected to a bearing, a bearing sleeve is sleeved on the bearing, a first movable rod is fixedly connected to one side of the bearing sleeve, a second movable rod is fixedly connected to the other side of the bearing sleeve, and the first movable rod is away from the bearing sleeve One end is fixedly connected with a first spring, the other end of the first spring is fixedly connected to the inner wall of the installation cavity, the end of the second movable rod away from the bearing sleeve is fixedly connected with a clamping block, a motor is provided in the installation cavity, a threaded rod is fixedly connected to the output end of the motor, a threaded block is threadedly connected to the threaded rod, a connecting rod is fixedly connected to one side of the threaded block, the end of the connecting rod away from the threaded block is fixedly connected to a fixed block, a clamping device is provided on the fixed block, a limiting block is symmetrically fixedly connected in the installation cavity, a stopper is also fixedly connected in the installation cavity, the stopper is located on the right side of the limit block, and an end face B is provided on the stopper.

[0005] Preferably, the clamping device includes two clamping plates, each of which is fixedly connected to a fixing rod, and a second spring is fixedly connected to one end of the fixing rod away from the clamping plate. Each of the two clamping plates is provided with an end face A, and each of the two clamping plates is rotatably connected to a fixed block. The end face B is inclined, and the end face A matches the end face B.

[0006] Preferably, the limit block and the stop block are both provided with through holes, the first movable rod and the second movable rod both slide in the through holes, and the connecting rod also slides in the through holes.

[0007] Preferably, a slide groove is provided on the upper side of the frame, and the movable plate slides in the slide groove.

[0008] Preferably, one end of the threaded rod is fixedly connected to an anti-slip stopper integrally formed therewith.

[0009] Compared with the prior art, the beneficial effects of the present invention are: through the interaction of structures such as the clamping plate, connecting rod, second spring, fixed block, clamping block, threaded rod, threaded block, and stop block, the back and forth movement of the tensioning wheel can be automatically adjusted, and can be flexibly used according to different needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a front structural schematic diagram of a screw tensioning mechanism for coating automation equipment proposed by the present invention;

[0011] Figure 2 for Figure 1 Schematic diagram of the locally enlarged structure of A in the middle.

[0012] In the figure: 1 frame, 2 movable plate, 3 tensioning sprocket, 4 rotating shaft, 5 sprocket support seat, 6 bearing sleeve, 7 bearing, 8 limit block, 9 stop block, 10 threaded block, 11 threaded rod, 12 motor, 13 first movable rod, 14 installation cavity, 15 first spring, 16 end face B, 17 end face A, 18 connecting rod, 19 fixed block, 20 fixed rod, 21 second spring, 22 second movable rod, 23 clamping block, 24 clamping plate. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0014] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0015] like Figure 1-2As shown, a screw tensioning mechanism for coating automation equipment of the present invention comprises a frame 1, a movable plate 2 is slidably connected to the frame 1, a slide groove is arranged on the upper side of the frame 1, the movable plate 2 slides in the slide groove, and the movable plate 2 moves to drive the tensioning wheel 3 to adjust back and forth, an installation cavity 14 is arranged in the frame 1, a sprocket support seat 5 is fixedly connected to the movable plate 2, the sprocket support seat 5 is rotatably connected to the tensioning sprocket 3, a rotating shaft 4 is fixedly connected to the center of the tensioning sprocket 3, the rotating shaft 4 passes through the movable plate 2 and the frame 1 and is rotatably connected to a bearing 7, a bearing sleeve 6 is sleeved on the bearing 7, a first movable rod 13 is fixedly connected to one side of the bearing sleeve 6, a second movable rod 22 is fixedly connected to the other side of the bearing sleeve 6, a first spring 15 is fixedly connected to the end of the first movable rod 13 away from the bearing sleeve 6, the other end of the first spring 15 is fixedly connected to the inner wall of the installation cavity 14, and a clamp is fixedly connected to the end of the second movable rod 22 away from the bearing sleeve 6 Block 23, a motor 12 is arranged in the mounting cavity 14, a threaded rod 11 is fixedly connected to the output end of the motor 12, one end of the threaded rod 11 is fixedly connected to an anti-slip stopper formed integrally therewith, and the anti-slip stopper is used to prevent the threaded block 10 from being detached, the threaded block 10 is threadedly connected to the threaded rod 11, one side of the threaded block 10 is fixedly connected to a connecting rod 18, and one end of the connecting rod 18 away from the threaded block 10 is fixedly connected to a fixed block 19, and a clamping device is arranged on the fixed block 19, and the clamping device includes two clamping plates 24, both of which are fixedly connected to a fixing rod 20, and one end of the fixing rod 20 away from the clamping plate 24 is fixedly connected to a second spring 21, and both of the clamping plates 24 are provided with an end face A17, and both of the clamping plates 24 are rotatably connected to the fixed block 19, and the end face A17 matches the end face B16, and when the clamping plate 24 clamps the block 23 and moves to the right, the first spring 15 extends, and the end face B 16 is tilted, when the end face A17 contacts the end face B16, the two are squeezed against each other, and the clamping plate 24 is separated from the clamping block 23 under the action of the second spring 21, and the first movable rod 13 is driven to move back under the action of the first spring 15, so that the first movable rod 13 drives the bearing sleeve 6 to move, and then the movable plate 2 drives the tensioning wheel 3 to move back, so that it moves to the initial position, thereby preventing over-adjustment due to staff errors, and the limiting block 8 is symmetrically fixedly connected in the installation cavity 14, and a stopper 9 is also fixedly connected in the installation cavity 14, and the stopper 9 is located on the right side of the limiting block 8. The end face B16 is provided on the stopper 9, and the limiting block 8 and the stopper 9 are both provided with through holes, and the first movable rod 13 and the second movable rod 22 both slide in the through hole, and the connecting rod 18 slides in the through hole. The first movable rod 13 and the second limiting rod 22 are prevented from axial movement under the action of the limiting block 8, and play a limiting role.

[0016] In the present invention, when the user uses the device, when the chain needs to be tensioned and adjusted, the motor 12 is started, and the motor 12 drives the threaded rod 11 to rotate, so that the threaded block 10 moves to the right, and then the threaded block 10 drives the connecting rod 18 to move to the right, so that the fixed block 19 moves to the right, and then drives the clamping plate 24 to clamp the block 23 and move to the right, the first spring 15 extends, and when the end face A17 contacts the end face B16, the two squeeze each other, and under the action of the second spring 21, the clamping plate 24 disengages from the block 23, and under the action of the first spring 15, drives the first movable rod 13 to move back, so that the first movable rod 13 drives the bearing sleeve 6 to move, and then the movable plate 2 drives the tensioning sprocket 3 to move back, so that it moves to the initial position, thereby preventing over-adjustment due to staff errors.

[0017] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screw tensioning mechanism for coating automation equipment, comprising a frame (1), characterized in that: A movable plate (2) is slidably connected to the frame (1), a mounting cavity (14) is provided in the frame (1), a sprocket support seat (5) is fixedly connected to the movable plate (2), a tensioning sprocket (3) is rotatably connected to the sprocket support seat (5), a rotating shaft (4) is fixedly connected to the center of the tensioning sprocket (3), the rotating shaft (4) passes through the movable plate (2) and the frame (1) and is rotatably connected to a bearing (7), a bearing sleeve (6) is sleeved on the bearing (7), a first movable rod (13) is fixedly connected to one side of the bearing sleeve (6), a second movable rod (22) is fixedly connected to the other side of the bearing sleeve (6), a first spring (15) is fixedly connected to one end of the first movable rod (13) away from the bearing sleeve (6), and the other end of the first spring (15) is fixedly connected to the mounting cavity ( 14), a clamping block (23) is fixedly connected to one end of the second movable rod (22) away from the bearing sleeve (6), a motor (12) is arranged in the installation cavity (14), a threaded rod (11) is fixedly connected to the output end of the motor (12), a threaded block (10) is threadedly connected to the threaded rod (11), a connecting rod (18) is fixedly connected to one side of the threaded block (10), a fixed block (19) is fixedly connected to one end of the connecting rod (18) away from the threaded block (10), a clamping device is arranged on the fixed block (19), a limit block (8) is symmetrically fixedly connected in the installation cavity (14), a stop block (9) is also fixedly connected in the installation cavity (14), the stop block (9) is located on the right side of the limit block (8), and an end face B (16) is arranged on the stop block (9); The clamping device comprises two clamping plates (24), each of the two clamping plates (24) being fixedly connected to a fixing rod (20), one end of the fixing rod (20) away from the clamping plate (24) being fixedly connected to a second spring (21), each of the two clamping plates (24) being provided with an end face A (17), each of the two clamping plates (24) being rotatably connected to a fixing block (19), the end face B (16) being inclined, and the end face A (17) matching the end face B (16); The limit block (8) and the stop block (9) are both provided with through holes, the first movable rod (13) and the second movable rod (22) both slide in the through holes, and the connecting rod (18) also slides in the through holes.

2. A screw tensioning mechanism for coating automation equipment according to claim 1, characterized in that: The upper side of the frame (1) is provided with a slide groove, and the movable plate (2) slides in the slide groove.

3. The screw tensioning mechanism for coating automation equipment according to claim 1, characterized in that: One end of the threaded rod (11) is fixedly connected to an anti-slip stopper integrally formed therewith.

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