Tension pay-off mechanism

Abstract

The utility model belongs to the technical field of cable manufacturing, and particularly relates to a tension pay-off mechanism which comprises a main frame, a balancing weight and a pull rope, an upper guide wheel is arranged at the upper end of the front face of the main frame, a sliding seat is arranged on the main frame through a vertical sliding rail, a lower guide wheel is arranged on the sliding seat, and a fixed pulley is arranged on the back face of the main frame and located between the lower portion of the upper guide wheel and the upper portion of the sliding rail. One end of the pull rope is fixedly connected with the sliding seat, and the other end of the pull rope bypasses the fixed pulley and is connected with a balancing weight on the back of the main frame; the pay-off speed is adjusted through the balancing weight, the pay-off tension frame is designed, the weight of the balancing weight can be adjusted according to the needed tension in the tension adjusting process, and the problem that the pay-off speed cannot be controlled easily due to the fact that tension is adjusted through a spring traditionally is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cable manufacturing, in particular to a tension pay-off mechanism. BACKGROUND

[0002] The existing pay-off tension frame control mode is spring tension adjustment, and the spring tension will be deformed after long time use, causing unstable pay-off tension. In addition, the quality of springs from different manufacturers and batches is unstable, and the tension size is inconsistent, which is not conducive to the control of pay-off speed. CONTENT OF THE UTILITY MODEL

[0003] The application is designed to adjust the pay-off speed by using counterweight, so that the weight of the counterweight can be adjusted according to the required tension size during the adjustment of the tension, thereby avoiding the problem that the traditional spring adjustment is not conducive to the control of the pay-off speed.

[0004] The technical scheme of the application is as follows:

[0005] A tension pay-off mechanism, comprising a main frame, a counterweight and a pull rope, wherein the upper end of the front surface of the main frame is provided with an upper guide roller, a slide seat is arranged on the main frame through a vertical slide rail, a lower guide roller is arranged on the slide seat, a fixed pulley is arranged between the upper guide roller and the upper end of the slide rail on the back surface of the main frame, one end of the pull rope is fixedly connected with the slide seat, and the other end of the pull rope is connected with the counterweight through the fixed pulley on the back surface of the main frame.

[0006] Preferably, the back surface of the main frame is provided with a vertical sliding limiter, and the counterweight moves up and down under the action of the vertical sliding limiter.

[0007] Preferably, the vertical sliding limiter comprises a vertical rod, a bushing and a locking block, the bushing is arranged below the fixed pulley on the main frame, the axis of the bushing is vertically arranged, the locking block is arranged above the bushing on the main frame, the lower end of the vertical rod is inserted into the bushing, the upper end of the vertical rod is rotatably connected with the lower surface of the locking block, and a vertical through hole is arranged on the counterweight away from the connection with the pull rope and slidably connected with both ends of the vertical rod.

[0008] Preferably, the counterweight comprises a plurality of counterweight units, the upper end of each counterweight unit is provided with a first clamping head, and the lower end of each counterweight unit is provided with a first clamping groove matched with the first clamping head.

[0009] Preferably, the lock block comprises a column, a second clamping groove, a third clamping groove, a wedge block, and a main top block, the main frame is provided with a vertical column, the top end of the column is provided with a second clamping groove, the main top block is provided with a third clamping groove, the upper end of the wedge block extends into the third clamping groove and is detachably connected with the main top block, the lower end of the wedge block extends into the second clamping groove and is detachably connected with the column, and the main top block is provided with a blind hole rotatably connected with the top end of the column at a position away from the third clamping groove on a plane where the third clamping groove is arranged.

[0010] Preferably, the length line of the second clamping groove and the length line of the third clamping groove are both perpendicular to the front face of the main frame.

[0011] Preferably, the cross section of the wedge block is in the shape of an I-beam.

[0012] Compared with the prior art, the application has the following beneficial effects:

[0013] The application adopts the mode of adjusting the pay-off speed by using counterweights, and designs a tension pay-off mechanism, so that the weight of the counterweight can be adjusted according to the required tension during the adjustment of the tension, thereby avoiding the problem that the traditional spring adjustment of the tension is not conducive to the control of the pay-off speed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the application;

[0015] Figure 2 is a structural schematic view of the back; Figure 1 is a structural schematic view of the back;

[0016] Figure 3 is a structural schematic view of the back; Figure 2 is an enlarged view of position A in FIG. 1;

[0017] Figure 4 is a structural schematic view of the application after one counterweight unit and wedge block are removed;

[0018] Figure 5 is a structural schematic view of the back; Figure 4 is an enlarged view of position B in FIG. 1.

[0019] Wherein: 1, main frame; 2, pull rope; 3, upper guide roller; 4, sliding seat; 5, sliding rail; 6, lower guide roller; 7, vertical rod; 8, insertion hole; 9, fixed pulley; 10, counterweight unit; 11, first clamping head; 12, first clamping groove; 13, column; 14, second clamping groove; 15, third clamping groove; 16, wedge block; 17, main top block; 18, through hole. DETAILED DESCRIPTION

[0020] As Figures 1-5As shown, a tension pay-off mechanism, comprising a main frame 1, a counterweight, a pull rope 2, an upper guide wheel 3 is arranged at the upper end of the front face of the main frame 1, a sliding seat 4 is arranged on the main frame 1 through a vertical slide rail 5, a lower guide wheel 6 is arranged on the sliding seat 4, a fixed pulley 9 is arranged between the upper end of the front face of the main frame 1 and the upper end of the slide rail 5, one end of the pull rope 2 is fixedly connected with the sliding seat 4, and the other end of the pull rope 2 is connected with the counterweight through the fixed pulley 9 on the back face of the main frame 1.

[0021] In this embodiment, when in use, the weight of the counterweight can be adjusted according to the required tension, so as to realize different pulling forces, and since the weight of the counterweight is constant, the tension instability as generated when a spring is used will not occur; the slide rail 5 is arranged to ensure that the moving direction of the lower guide wheel 6 is always vertical movement under the action of different pulling forces. The fixed pulley 9 is arranged to change the pulling force direction of the pull rope 2, so that the upward pulling force of the sliding seat 4 can be generated by the gravity of the counterweight, and the lower guide wheel 6 is on the sliding seat 4, so that when the sliding seat 4 moves, the lower guide wheel 6 also moves, and thus the pulling force applied to the sliding seat 4 is equivalent to the pulling force applied to the lower guide wheel 6. In this way, the following advantages are achieved:

[0022] 1. The weight of the counterweight can be adjusted according to the required tension, so as to realize constant tension.

[0023] 2. Since the length of the pull rope is adjustable, that is, the distance between the upper guide wheel and the lower guide wheel is adjustable, the length of the storage line can be increased, and the storage amount can be increased.

[0024] 3. It is more beneficial to control the pay-off speed

[0025] As a preferred mode, the back face of the main frame 1 is provided with a vertical sliding limiter, and the counterweight moves up and down under the action of the vertical sliding limiter. After this arrangement, the counterweight will not shake, and can only move up and down.

[0026] As a preferred mode, the vertical sliding limiter comprises a vertical rod 7, a socket 8, a locking block, the socket 8 is arranged on the main frame 1 below the fixed pulley 9, the axis of the socket 8 is vertically arranged, the locking block is arranged on the main frame 1 above the socket 8, the lower end of the vertical rod 7 is inserted into the socket 8, the upper end of the vertical rod 7 is rotatably connected with the lower surface of the locking block, and a vertical through hole 18 is arranged on the counterweight block away from the connection with the pull rope 2 and is slidably connected between the two ends of the vertical rod 7. After being arranged in this way, in use, the counterweight block and the end of the pull rope 2 are first fixed, then the vertical rod 7 is vertically inserted through the through hole 18, so that the lower end of the vertical rod 7 is inserted into the socket 8, and then the upper end of the locking block is covered on the top end of the vertical rod 7. Preferably, a bearing can be arranged on the lower surface of the locking block, and then the top end of the vertical rod 7 is inserted into the bearing, and then the locking block is fixedly connected with the main frame 1. In this way, the counterweight block can only slide between the two ends of the vertical rod 7, that is, move up and down, and cannot swing.

[0027] As a preferred mode, the counterweight block comprises a plurality of counterweight units 10, the upper end of each counterweight unit 10 is provided with a first clamping head 11, and the lower end of each counterweight unit 10 is provided with a first clamping groove 12 matched with the first clamping head 11. After being arranged in this way, the number of counterweight units 10 can be adjusted as needed to adjust the weight of the counterweight block. When the counterweight units 10 are combined, the first clamping head 11 of the next counterweight unit 10 can be inserted into the first clamping groove 12 of the previous counterweight unit 10, so that the counterweight units 10 can be combined together.

[0028] As a preferred mode, the locking block comprises a vertical column 13, a second clamping groove 14, a third clamping groove 15, a wedge block 16, and a main top block 17. The main frame 1 is provided with a vertical column 13, the top end of the vertical column 13 is provided with a second clamping groove 14, the main top block 17 is provided with a third clamping groove 15, the upper end of the wedge block 16 extends into the third clamping groove 15 and is detachably connected with the main top block 17, the lower end of the wedge block 16 extends into the second clamping groove 14 and is detachably connected with the vertical column 13, and the main top block 17 is provided with a blind hole rotatably connected with the top end of the vertical rod 7 on the plane where the third clamping groove 15 is arranged and away from the third clamping groove 15. After being arranged in this way, the main top block 17 and the vertical column 13 can be fixed together by inserting the upper part of the wedge block 16 into the third clamping groove 15 and inserting the lower part of the wedge block 16 into the second clamping groove 14. When disassembly is needed, the wedge block 16 is pulled out, and then the main top block 17 is separated from the top end of the vertical column 13, so that the vertical rod 7 can be pulled out of the socket 8, and each counterweight unit is not limited.

[0029] As a preferred mode, the length line of the second clamping groove 14 and the length line of the third clamping groove 15 are both perpendicular to the front face of the main frame 1. After such arrangement, as shown in Figure 2 , Figure 4 , Figure 5 , it is convenient to adjust the number of the weight units 10 on the main frame 1.

[0030] As a preferred mode, the cross section of the wedge block 16 is in the shape of an I-beam. Of course, the cross section of the wedge block 16 is in the shape of an I-beam, so the second clamping groove 14 corresponds to the lower half of the I-beam and the third clamping groove 15 corresponds to the upper half of the I-beam, which makes the wedge block 16 insert the main top block 17 and the stand 17 together.

Claims

1. A tension pay-off mechanism characterised in that, The utility model provides a kind of vertical sliding limit stopper, including main frame (1), counterweight, pull rope (2), the upper end of the front of the main frame (1) is provided with upper guide pulley (3), the main frame (1) is equipped with slide (4) by vertical slide rail (5), the slide (4) is provided with lower guide pulley (6), the back of the main frame (1) is equipped with fixed pulley (9) between the upper guide pulley (3) below and the upper side of slide rail (5), one end of the pull rope (2) is fixedly connected with the slide (4), the other end of the pull rope (2) is connected with counterweight by passing fixed pulley (9) on the back of the main frame (1).

2. A tensioning mechanism according to claim 1, wherein The back of the main frame (1) is provided with vertical sliding limiter, and the counterweight moves up and down under the action of the vertical sliding limiter.

3. A tensioning mechanism according to claim 2, wherein The vertical sliding limiter includes a vertical rod (7), a bushing (8) and a locking block, the bushing (8) is arranged below the fixed pulley (9) on the main frame (1), the axis of the bushing (8) is vertically arranged, the locking block is arranged above the bushing (8) on the main frame (1), the lower end of the vertical rod (7) is inserted into the bushing (8), the upper end of the vertical rod (7) is rotatably connected with the lower surface of the locking block, and a vertical through hole is arranged on the counterweight away from the connection with the pull rope (2) and slidably connected with both ends of the vertical rod (7).

4. A tensioning mechanism according to claim 1, wherein The counterweight includes a plurality of counterweight units (10), the upper end of each counterweight unit (10) is provided with a first clamping head (11), and the lower end of each counterweight unit (10) is provided with a first clamping groove (12) matched with the first clamping head (11).

5. A tensioning mechanism according to claim 3, wherein The locking block includes a vertical column (13), a second clamping groove (14), a third clamping groove (15), a wedge block (16) and a main top block (17), the vertical column (13) is arranged on the main frame (1), the second clamping groove (14) is arranged at the top end of the vertical column (13), the third clamping groove (15) is arranged through the main top block (17), the upper end of the wedge block (16) extends into the third clamping groove (15) and is detachably connected with the main top block (17), the lower end of the wedge block (16) extends into the second clamping groove (14) and is detachably connected with the vertical column (13), and a blind hole is arranged on the main top block (17) away from the third clamping groove (15) on the plane where the third clamping groove (15) is arranged and is rotatably connected with the top end of the vertical rod (7).

6. A tensioning mechanism according to claim 5, wherein The length of the second clamping groove (14) and the length of the third clamping groove (15) are both perpendicular to the front of the main frame (1).

7. A tensioning mechanism according to claim 5, wherein The cross section of the wedge block (16) is in the shape of an I-beam.

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