CN210417226U

CN210417226U - Mechanical tension setting device

Info

Publication number: CN210417226U
Application number: CN201920324094.6U
Authority: CN
Inventors: 李永琦; 练大伟; 吴春雷
Original assignee: Shaanxi Beiren Printing Machinery Co Ltd
Current assignee: Shaanxi Beiren Printing Machinery Co Ltd
Priority date: 2019-03-14
Filing date: 2019-03-14
Publication date: 2020-04-28
Anticipated expiration: 2029-03-14

Abstract

The utility model discloses a mechanical tension setting device, which comprises a positioning system and a tension setting unit which are connected with each other; the tension giving unit comprises a motor which is horizontally arranged, and the motor is connected with one end of a ball screw through a coupling a; the other end of the ball screw is connected with the bearing support through a bearing a; the ball screw is sleeved with a screw nut matched with the ball screw, and the screw nut is fixedly connected with the balancing weight through a connecting piece. The utility model adopts the motor to drive the balancing weight to displace, thereby realizing more accurate tension setting and more stable control, ensuring more accurate tension control for printing the first color and controlling the first color to be 0.1N; the method is favorable for the stability of high-speed feeding, the control of printing overprinting precision and the improvement of the quality of printed products.

Description

Mechanical tension setting device

Technical Field

The utility model belongs to the technical field of soft-packing equipment, concretely relates to mechanical type tension gives device.

Background

At present, floating rollers are adopted for tension control equipped on flexible packaging equipment, a low-friction cylinder is adopted for driving tension setting, the tension is set by the air source size of the cylinder, the air source is unstable, the fluctuation of the tension control precision is large, meanwhile, the set tension is not accurate enough (about 10N), and the requirement of high-precision control cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mechanical type tension gives device, simple structure, and control is accurate.

The technical scheme adopted by the utility model is that the mechanical tension setting device comprises a positioning system and a tension setting unit which are connected with each other; the tension giving unit comprises a motor which is horizontally arranged, and the motor is connected with one end of a ball screw through a coupling a; the other end of the ball screw is connected with the bearing support through a bearing a; the ball screw is sleeved with a screw nut matched with the ball screw, and the screw nut is fixedly connected with the balancing weight through a connecting piece.

The utility model discloses a characteristics still lie in:

the positioning system comprises a wallboard, wherein the wallboard is provided with a mounting hole, and a fixed seat is fixed in the mounting hole; a horizontally arranged central shaft passes through the mounting hole and is connected with the fixed seat through a bearing b; the central shaft is connected with the positioning mechanism.

The positioning mechanism comprises a supporting lever which is horizontally arranged; the sliding block is provided with a groove, and the sliding block is clamped on the support lever through the groove.

Two sets of positioning mechanisms are respectively positioned at the upper side and the lower side of the central shaft.

The supporting lever is arranged in a mode that one end of the central shaft is fixedly connected with the supporting lever vertical to the central shaft through the adapter sleeve; the two sliding blocks are fixedly connected with the balancing weight; one end of each of the two supporting levers is fixed on the support a, and the other end of each of the two supporting levers is fixed on the support b; the support b is fixedly connected with the bearing support.

The motor is fixed on the motor support c, and the motor support c is fixedly connected with the support a.

The motor is characterized by further comprising an encoder, wherein the encoder is connected with one end, far away from the motor, of the ball screw through a coupler b.

The encoder is arranged in a mode that the encoder is fixed on an encoder bracket, and the encoder bracket is fixedly connected with the bearing support.

The utility model has the advantages that: the motor is adopted to drive the balancing weight to move, so that the tension setting is more accurate, the control is more stable, the tension control for printing the first color is more accurate, and the control can be controlled to be 0.1N; the method is favorable for the stability of high-speed feeding, the control of printing overprinting precision and the improvement of the quality of printed products.

Drawings

Fig. 1 is a front view of the mechanical tension setting device of the present invention;

FIG. 2 is a top view of the mechanical tension setting device of the present invention;

fig. 3 is a side view of the mechanical tension setting device of the present invention.

In the figure, 1, a positioning system, 2, a tension setting unit, 3, a motor, 4, a coupler a, 5, a ball screw, 6, a bearing a, 7, a bearing support, 8, a screw nut, 9, a connecting piece, 10, a wall plate, 11, a mounting hole, 12, a fixed seat, 13, a central shaft, 14, a bearing b, 15, an adapter sleeve, 16, a support lever, 17, a sliding block, 18, a balancing weight, 19, a support a, 20, a support b, 21, a support c, 22, a positioning mechanism, 23, an encoder, 24, a coupler b, 25 and an encoder support are arranged.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 and fig. 2, the present invention relates to a mechanical tension setting device, which comprises a positioning system 1 and a tension setting unit 2 connected with each other; the tension giving unit 2 comprises a motor 3 which is horizontally arranged, and the motor 3 is connected with one end of a ball screw 5 through a coupler a 4; the other end of the ball screw 5 is connected with the bearing support 7 through a bearing a 6; the ball screw 5 is sleeved with a screw nut 8 matched with the ball screw, and the screw nut 8 is fixedly connected with a balancing weight 18 through a connecting piece 9. As shown in fig. 3, the positioning system 1 includes a wall plate 10, the wall plate 10 is provided with a mounting hole 11, and a fixing seat 12 is fixed in the mounting hole 11; a horizontally arranged central shaft 13 passes through the mounting hole 11 and is connected with the fixed seat 12 through a bearing b 14; the central shaft 13 is connected to a positioning mechanism 22.

As shown in fig. 1 and 2, the positioning mechanism 22 includes a horizontally disposed support lever 16; the device also comprises a sliding block 17 with a groove, and the sliding block 17 is clamped on the support lever 16 through the groove. Two sets of positioning mechanisms 22 are respectively positioned at the upper side and the lower side of the central shaft 13. As shown in fig. 3, the support lever 16 is arranged in such a way that one end of the central shaft 13 is fixedly connected with the support lever 16 perpendicular thereto through the adapter sleeve 15; the two sliding blocks 17 are fixedly connected with a balancing weight 18; one end of each of the two support levers 16 is fixed on the support a19, and the other end is fixed on the support b 20; the support b20 is fixedly connected with the bearing support 7. As shown in fig. 1 and 2, the motor 3 is fixed to a motor support c21, and a motor support c21 is fixedly connected with a support a 19. The motor also comprises an encoder 23, and the encoder 23 is connected with one end of the ball screw 5 far away from the motor 3 through a coupler b 24. The encoder 23 is arranged in a manner that the encoder 23 is fixed on an encoder bracket 25, and the encoder bracket 25 is fixedly connected with the bearing support 7.

The utility model discloses mechanical type tension gives device's working process (principle) does: when the motor 3 drives the ball screw 5 to rotate, the balancing weight 18 can move along the axial direction of the ball screw 5, and when the balancing weight 18 moves to different positions, the swing arm of the flexible packaging equipment drives the floating roller to rotate by different angles by taking the central shaft 13 as a fulcrum, so that the setting and the control of tension are achieved; the structure is based on the lever principle, and the accuracy and the stability of tension setting can be achieved without being influenced by external factors (different from the influence of the conventional floating roller on controlling the air source pressure and the air source stability).

The mechanical tension setting device of the utility model adopts the motor to drive the balancing weight to displace, thus realizing more accurate tension setting and more stable control, ensuring more accurate tension control of printing the first color and controlling the first color to be 0.1N; the method is favorable for the stability of high-speed feeding, the control of printing overprinting precision and the improvement of the quality of printed products.

Claims

1. A mechanical tension force setting device, characterized in that: comprises a positioning system (1) and a tension setting unit (2) which are connected with each other; the tension setting unit (2) comprises a motor (3) which is horizontally arranged, and the motor (3) is connected with one end of a ball screw (5) through a coupler a (4); the other end of the ball screw (5) is connected with a bearing support (7) through a bearing a (6); the ball screw (5) is sleeved with a screw nut (8) matched with the ball screw, and the screw nut (8) is fixedly connected with a balancing weight (18) through a connecting piece (9).

2. The mechanical tension setting device as claimed in claim 1, wherein: the positioning system (1) comprises a wallboard (10), the wallboard (10) is provided with a mounting hole (11), and a fixed seat (12) is fixed in the mounting hole (11); a horizontally arranged central shaft (13) penetrates through the mounting hole (11) and is connected with the fixed seat (12) through a bearing b (14); the central shaft (13) is connected with a positioning mechanism (22).

3. The mechanical tension setting device as claimed in claim 2, wherein: the positioning mechanism (22) comprises a horizontally arranged support lever (16); the device also comprises a sliding block (17) with a groove, and the sliding block (17) is clamped on the support lever (16) through the groove.

4. A mechanical tension setting device as defined in claim 3, wherein: two sets of positioning mechanisms (22) are respectively positioned at the upper side and the lower side of the central shaft (13).

5. The mechanical tension setting device as claimed in claim 4, wherein: the supporting lever (16) is arranged in a way that one end of the central shaft (13) is fixedly connected with the supporting lever (16) which is vertical to the central shaft through the adapter sleeve (15); the two sliding blocks (17) are fixedly connected with a balancing weight (18); one ends of the two supporting levers (16) are fixed on the support a (19), and the other ends of the two supporting levers are fixed on the support b (20); the support b (20) is fixedly connected with the bearing support (7).

6. The mechanical tension setting device as claimed in claim 5, wherein: the motor (3) is fixed on a motor support c (21), and the motor support c (21) is fixedly connected with the support a (19).

7. The mechanical tension setting device as claimed in claim 6, wherein: the motor is characterized by further comprising an encoder (23), wherein the encoder (23) is connected with one end, far away from the motor (3), of the ball screw (5) through a coupler b (24).

8. The mechanical tension setting device as claimed in claim 7, wherein: the encoder (23) is arranged in a manner that the encoder (23) is fixed on an encoder bracket (25), and the encoder bracket (25) is fixedly connected with the bearing support (7).