Extrusion traction machine capable of conveniently adjusting tension degree

Abstract

The utility model discloses an extrusion traction machine convenient to adjust the tension degree, and particularly relates to the technical field of traction machines, the extrusion traction machine comprises a mounting box, guide rods are symmetrically arranged at the top of the mounting box, a transverse plate is fixedly mounted at the tops of the guide rods, and a two-way screw rod I is rotatably mounted between the transverse plate and the mounting box. The twisting handle can be twisted to drive the stop lever to rotate by 90 degrees, so that the through groove corresponds to the inserting rod, then the two-way screw rod II is rotated according to needs, sliding of the mounting blocks connected to the two ends of the rotating roller II is synchronously adjusted, and therefore the tensioning degree of the belt is adjusted, and after adjustment is finished, force applied to the twisting handle can be released, so that the stop lever stops one end of the inserting rod; the situation that the position of a second rotating roller after adjustment is affected due to accidental touch of rotation of a second two-way screw rod is avoided, so that the tensioning degree of the belt is changed, and practicability is higher; through the connecting block, the pointer and the graduated scale, the moving position of the second roller can be visually known and adjusted, and therefore the change of the tension degree of the adjusted second roller can be known.

Description

Technical Field

[0001] The utility model relates to the technical field of traction machines, in particular to an extrusion traction machine which is convenient for adjusting the tension. Background Art

[0002] Aluminum bar is a common aluminum material. It is a long strip of aluminum material, usually with a right-angle cross-section. It is light, beautiful, and corrosion-resistant. Aluminum bars can be divided into two types: room temperature state and heated state. Aluminum bars at room temperature are also called cold-drawn aluminum bars, and aluminum bars in the heated state are also called hot-rolled aluminum bars. In the production and processing of aluminum bars, after extrusion molding using an extruder, a belt traction machine will be used for traction and transportation. The belt traction machine adopts a double-belt traction method, with thyristor stepless speed regulation or frequency conversion speed regulation. It is mainly matched with a plastic extruder and is used for extrusion traction of small-diameter plastic pipes, hoses, plastic decorative panels, sheets, small profiles, etc. It has the characteristics of uniform traction speed, low noise, long service life, compact structure, and beautiful appearance.

[0003] The patent with the publication number CN213325344U discloses a profile belt traction machine, including an installation box, an upper crawler transmission mechanism and a lower crawler transmission mechanism, guide rods are fixedly installed at the middle positions on both sides of the top of the installation box, two guide rods are movably sleeved and installed with two sliding sleeves, four sliding sleeves are grouped in pairs, an upper connecting rod and a lower connecting rod are fixedly installed between the two groups of sliding sleeves, the upper crawler transmission mechanism and the lower crawler transmission mechanism are movably installed on one side of the guide rods through the two groups of sliding sleeves, and a driving mechanism is fixedly installed on one side of the upper crawler transmission mechanism and the lower crawler transmission mechanism, a mounting plate is fixedly installed on the top of the installation box through the two guide rods, and a cylinder is fixedly installed at the middle position of the top of the mounting plate. The utility model provides a series of structures to make the device easy to adjust and have strong stability during use.

[0004] At present, in most belt traction machines, the two rollers driving the belts are usually fixedly installed by means of bearing seats and bolts, or two screws are used to connect one end of the roller shaft of one of the rollers to achieve the adjustment of the belt tension. For example, in the above-mentioned patent, two screws are used to cooperate with sliders connected to the two ends of the rollers to adjust their positions so as to adjust the tension of the belt. However, this operation method is relatively cumbersome, and it is inconvenient to synchronously adjust the movement of the two ends of the two rollers to make them on the same horizontal plane. In addition, there is a lack of a limiting structure. If the screw is accidentally touched, the belt tension will be affected, thereby affecting its use, and its practicality is relatively poor. Utility Model Content

[0005] The utility model aims to provide an extrusion traction machine which is convenient for adjusting the tension, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an extrusion traction machine which is convenient for adjusting the tension, comprises an installation box, the top of the installation box is symmetrically provided with guide rods, and the top of the guide rod is fixedly provided with a cross plate, a two-way screw 1 is rotatably installed between the cross plate and the installation box, two groups of support plates symmetrically arranged front and back are distributed in front of the two-way screw 1, one side of the upper and lower support plates is respectively connected with the two-way screw 1 and the guide rod through a slider 1 and a slider 2, a rotating roller 1 and a rotating roller 2 are rotatably installed between the support plates, one end of the rotating roller 1 is connected with a motor at the outer side of the rear support plate, a belt is sleeved on the outer side of the rotating roller 1 and the rotating roller 2, the rotating roller 2 is connected to the supporting plate through an adjusting mechanism, the adjusting mechanism comprises a mounting block, and the mounting block is rotatably installed on the outer side of the roller shaft of the rotating roller 2, and a sliding groove adapted to the mounting block is opened on the side wall of the supporting plate.

[0007] Furthermore, the adjustment mechanism also includes a two-way screw rod, and the two-way screw rod is rotatably installed between the front and rear support plates, both ends of the two-way screw rod are sleeved with threaded moving blocks on the outer side of the support plate, one end of the moving block is movably connected to the mounting block through a connecting rod, and a plurality of tooth grooves are symmetrically opened on the outer wall of the two-way screw rod, one side of the two-way screw rod is fixedly installed with a fixing seat on the side wall of the support plate, a plug rod is movably installed in the fixing seat, and one end of the plug rod is adapted to the tooth groove, and the outer wall of the plug rod is sleeved with baffles and springs on the left and right sides of the inner side of the fixing seat, and the support plate A baffle is rotatably installed on one side, and at the place where one end of the baffle is connected to one end of the insertion rod, the outer wall of the one end of the baffle begins to have a through groove adapted to the insertion rod, the outer wall of the support plate is provided with a sleeve on the outside of the baffle, and the outer wall of the baffle is provided with a torsion spring in the sleeve, and the two ends of the torsion spring are respectively fixedly connected to the baffle and the sleeve, and the adjustment mechanism can be used to conveniently and synchronously adjust the movement of the two ends of the roller to ensure that the movement of the two ends is always in the same horizontal plane, and at the same time, it can be limited and fixed at the end of the adjustment to avoid accidental touch affecting the position change after adjustment, thereby affecting the tension of the adjusted belt.

[0008] Furthermore, a connecting block is movably embedded in one end of the front mounting block, and the connecting block is fixedly connected to the mounting block by bolts. A pointer is provided on the top of the connecting block, and a scale matching the pointer is provided on one side of the support plate, so that the horizontal distance moved by the second roller can be intuitively understood, thereby understanding the change in the tension.

[0009] Furthermore, the second bidirectional screw is rotatably connected to the support plate via a bearing, the two ends of the connecting rod are respectively hinged to the moving block and the mounting block, and the mounting block is rotatably connected to the second roller via a bearing so as to transmit power to synchronously drive the two moving blocks to move.

[0010] Furthermore, the baffle plate is fixedly connected to the insertion rod, the insertion rod is rectangular, the baffle rod is rotatably connected to the support plate through a bearing, and a twist handle is connected to one end of the baffle rod outside the sleeve to limit and fix the baffle rod without affecting its rotation.

[0011] Furthermore, the cross section of the slide groove is cross-shaped, the mounting block is adapted to the slide groove, and the mounting block is slidably connected to the inner wall of the slide groove so as to limit and guide the mounting block.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0013] 1. The utility model can rotate the twist handle to drive the stop rod to rotate 90 degrees through the adjustment mechanism, so that the through slot corresponds to the insertion rod, and then rotate the two-way screw rod 2 as needed to achieve synchronous adjustment of the sliding of the mounting blocks connected to the two ends of the roller 2, thereby adjusting the tension of the belt. After the adjustment is completed, the force applied to the twist handle can be released to make the stop rod block one end of the insertion rod to avoid accidental contact with the rotation of the two-way screw rod 2, affecting the position of the roller 2 after adjustment, thereby changing the tension of the belt. It is easy to use and more practical.

[0014] 2. The utility model can intuitively understand the position of the adjustment roller 2 through the connecting block, the pointer and the scale, so as to understand the change in the tension of the roller 2 after adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure between the bidirectional screw rod 2, the mounting block and the rotating roller 2 of the utility model;

[0019] Figure 4 It is a schematic diagram of the partial structure between the stopper rod, the fixing seat and the bidirectional screw rod 2 of the utility model;

[0020] Figure 5 This utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0021] In the figure: 1. installation box; 2. guide rod; 3. cross plate; 4. two-way screw rod 1; 5. support plate; 6. slider rod 1; 7. slider rod 2; 8. motor; 9. roller rod 1; 10. roller rod 2; 11. belt; 12. installation block; 13. two-way screw rod 2; 14. moving block; 15. connecting rod; 16. fixing seat; 17. plug rod; 18. baffle plate; 19. spring; 20. baffle rod; 21. sleeve; 22. torsion spring; 23. connecting block; 24. pointer; 25. ruler. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 - Figure 5The extrusion traction machine shown in the figure is easy to adjust the tension, including an installation box 1, a guide rod 2 is symmetrically arranged on the top of the installation box 1, and a cross plate 3 is fixedly installed on the top of the guide rod 2, a bidirectional screw 4 is rotatably installed between the cross plate 3 and the installation box 1, two groups of support plates 5 symmetrically arranged front and back are distributed in front of the bidirectional screw 4, one side of the upper and lower support plates 5 is connected to the bidirectional screw 4 and the guide rod 2 through a slider 1 6 and a slider 2 7 respectively, a roller 1 9 and a roller 2 10 are rotatably installed between the support plates 5, one end of the roller 1 9 is connected to the outer side of the rear support plate 5 with a motor 8, a belt 11 is sleeved on the outer side of the roller 1 9 and the roller 2 10, and the roller 2 10 is connected to the support plate 5 through an adjustment mechanism, the adjustment mechanism includes a mounting block 12, and the mounting block 12 is rotatably installed on the outer side of the roller shaft of the roller 2 10, and a slide groove adapted to the mounting block 12 is opened on the side wall of the support plate 5. In this example, the adjustment mechanism also includes a two-way screw rod 13, and the two-way screw rod 13 is rotatably installed between the front and rear support plates 5. Both ends of the two-way screw rod 13 are sleeved with threaded moving blocks 14 on the outside of the support plate 5. One end of the moving block 14 is movably connected to the mounting block 12 through a connecting rod 15. The outer wall of the two-way screw rod 13 is symmetrically provided with a plurality of tooth grooves. One side of the two-way screw rod 13 is fixedly installed with a fixing seat 16 on the side wall of the support plate 5. A plug rod 17 is movably installed in the fixing seat 16, and one end of the plug rod 17 is adapted to the tooth groove. The outer wall of the plug rod 17 is sleeved with baffles 18 and springs 19 on the left and right sides of the inner side of the fixing seat 16. The support plate 5 is A baffle rod 20 is installed for side rotation, and one end of the baffle rod 20 is in contact with one end of the insertion rod 17. A through groove adapted to the insertion rod 17 begins to be formed on the outer wall of one end of the baffle rod 20. A sleeve 21 is sleeved on the outer wall of the support plate 5 on the outside of the baffle rod 20. A torsion spring 22 is sleeved on the outer wall of the baffle rod 20 in the sleeve 21, and the two ends of the torsion spring 22 are respectively fixedly connected to the baffle rod 20 and the sleeve 21. Through the adjustment mechanism, the movement of the two ends of the roller 10 can be conveniently and synchronously adjusted to ensure that the movement of the two ends is always in the same horizontal plane. At the same time, it can be limited and fixed at the end of the adjustment to avoid accidental touch affecting the position change after adjustment, thereby affecting the tension of the adjusted belt 11. In this example, a connecting block 23 is movably embedded at one end of the front mounting block 12, and the connecting block 23 is fixedly connected to the mounting block 12 by bolts. A pointer 24 is provided on the top of the connecting block 23, and a scale 25 adapted to the pointer 24 is provided on one side of the support plate 5, so that the horizontal distance moved by the roller 2 10 can be intuitively understood, thereby understanding the change in the tension.

[0024] In this example, the bidirectional screw rod 13 is rotatably connected to the support plate 5 through a bearing, the two ends of the connecting rod 15 are respectively hinged to the moving block 14 and the mounting block 12, and the mounting block 12 is rotatably connected to the roller 10 through a bearing so as to transmit power to synchronously drive the two moving blocks 14 to move. In this example, the baffle plate 18 is fixedly connected to the plug rod 17, the plug rod 17 is rectangular, the baffle rod 20 is rotatably connected to the support plate 5 through a bearing, and the baffle rod 20 is connected to a twist handle at one end outside the sleeve 21. In this example, an angle line can be provided on one end face of the sleeve 21, and an indicator mark can be provided at one end of the twist handle to understand the twist angle, or a rod can be installed at one end of the baffle rod 20, and a shift rod can be provided on one side of the sleeve 21, so that when the two rods are in contact, the through groove on the baffle rod 20 can be directly opposite to the plug rod 17, and the angle line, indicator and two rods mentioned above are not drawn in the drawings, so as to limit and fix the baffle rod 20 without affecting its rotation. In this example, the cross section of the slide groove is cross-shaped, the mounting block 12 is adapted to the slide groove, and the mounting block 12 is slidably connected to the inner wall of the slide groove so as to limit and guide the mounting block 12 .

[0025] The working principle of the utility model is as follows: when it is necessary to adjust the tension of the belt 11, the torsion handle can be twisted to drive the stopper 20 to rotate and twist the torsion spring 22, so that the stopper 20 is rotated until the through groove on it is directly opposite to the insertion rod 17, and the two-way screw rod 13 is twisted to rotate, so that the two-way screw rod 13 can synchronously drive the two moving blocks 14 to move in the relative inner direction, so that the moving block 14 can drive the connecting rod 15 to push the mounting block 12 to move in the slide groove, so that the mounting block 12 can drive the roller 10 to move synchronously, so that the roller 10 can push the belt 11 to make it tight, thereby changing its tension, and when the mounting block 12 moves, it will drive the connecting block 23 and the pointer 24, so that the pointer 24 moves synchronously, and the distance moved by the roller 10 is judged according to the scale value on the scale 25 corresponding to the pointer 24, so that it can be adjusted after it moves to the appropriate position. When the desired tension is achieved, the inner wall of the tooth groove on the bidirectional screw 13 is rotated to squeeze and push one end of the plug rod 17, so that the plug rod 17 moves out of the tooth groove. At the same time, the plug rod 17 drives the baffle plate 18 to squeeze the spring 19 and insert one end of the plug rod 17 into the through groove. When the tooth groove of the squeezed plug rod 17 is misaligned with it, the plug rod 17 is reset under the elastic force of the spring 19, so that the plug rod 17 is inserted into the corresponding tooth groove, and this cycle is repeated until the adjustment is completed, and the force applied to the torsion handle can be released to reset and rotate the baffle rod 20 under the torsion of the torsion spring 22, so that the through groove on the baffle rod 20 is misaligned with the plug rod 17, so that the baffle rod 20 blocks the plug rod 17 to avoid accidentally touching the rotation of the bidirectional screw 13, thereby causing the roller 2 10 to shift, affecting the change in the adjusted tension. It is easy to use and more practical.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. 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. An extrusion traction machine with easy adjustment of tension, comprising a mounting box (1), characterized in that: The top of the installation box (1) is symmetrically provided with a guide rod (2), and a transverse plate (3) is fixedly installed on the top of the guide rod (2). A bidirectional screw rod (4) is rotatably installed between the transverse plate (3) and the installation box (1). Two groups of support plates (5) are symmetrically arranged in front and behind and are distributed in the upper and lower parts in front of the bidirectional screw rod (4). One side of the upper and lower support plates (5) is connected to the bidirectional screw rod (4) and the guide rod (2) through a slider (6) and a slider (7) respectively. A rotating shaft is rotatably installed between the support plates (5). Roller 1 (9) and roller 2 (10), one end of the roller 1 (9) is connected to a motor (8) on the outside of a rear support plate (5), belts (11) are sleeved on the outside of the roller 1 (9) and the roller 2 (10), the roller 2 (10) is connected to the support plate (5) through an adjustment mechanism, the adjustment mechanism includes a mounting block (12), and the mounting block (12) is rotatably mounted on the outside of the roller shaft of the roller 2 (10), and a sliding groove adapted to the mounting block (12) is provided on the side wall of the support plate (5).

2. The extrusion traction machine with easy adjustment of tension according to claim 1, characterized in that: The adjustment mechanism further comprises a bidirectional screw rod (13), and the bidirectional screw rod (13) is rotatably mounted between the front and rear support plates (5), both ends of the bidirectional screw rod (13) are sleeved with threaded movable blocks (14) on the outer sides of the support plates (5), one end of the movable block (14) is movably connected to the mounting block (12) through a connecting rod (15), a plurality of tooth grooves are symmetrically provided on the outer wall of the bidirectional screw rod (13), a fixing seat (16) is fixedly mounted on one side of the bidirectional screw rod (13) on the side wall of the support plate (5), an insert rod (17) is movably mounted in the fixing seat (16), and one end of the insert rod (17) is Matching with the tooth groove, the outer wall of the insertion rod (17) is respectively sleeved with a baffle (18) and a spring (19) on the left and right sides of the inner side of the fixed seat (16), a baffle rod (20) is rotatably installed on one side of the support plate (5), and one end of the baffle rod (20) is in contact with one end of the insertion rod (17), and the outer wall of one end of the baffle rod (20) is provided with a through groove matching with the insertion rod (17), the outer wall of the support plate (5) is sleeved with a sleeve (21) on the outer side of the baffle rod (20), and the outer wall of the baffle rod (20) is sleeved with a torsion spring (22) in the sleeve (21), and the two ends of the torsion spring (22) are respectively fixedly connected with the baffle rod (20) and the sleeve (21).

3. The extrusion traction machine with easy adjustment of tension according to claim 2, characterized in that: A connecting block (23) is movably embedded in one end of the front mounting block (12), and the connecting block (23) is fixedly connected to the mounting block (12) by bolts. A pointer (24) is provided on the top of the connecting block (23), and a scale (25) adapted to the pointer (24) is provided on one side of the support plate (5).

4. The extrusion traction machine with easy adjustment of tension according to claim 2, characterized in that: The second bidirectional screw rod (13) is rotatably connected to the support plate (5) via a bearing, and the two ends of the connecting rod (15) are respectively hinged to the moving block (14) and the mounting block (12), and the mounting block (12) is rotatably connected to the second rotating roller (10) via a bearing.

5. The extrusion traction machine with easy adjustment of tension according to claim 2, characterized in that: The baffle plate (18) is fixedly connected to the insertion rod (17); the insertion rod (17) is rectangular; the baffle rod (20) is rotatably connected to the support plate (5) via a bearing; and one end of the baffle rod (20) located outside the sleeve (21) is connected to a twist handle.

6. The extrusion traction machine with easy adjustment of tension according to claim 2, characterized in that: The cross section of the slide groove is cross-shaped, the mounting block (12) is adapted to the slide groove, and the mounting block (12) is slidably connected to the inner wall of the slide groove.

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