Unwinding device of straw packaging machine

Abstract

The utility model provides an unwinding device of a straw packaging machine, which comprises a mounting plate, a mounting box is arranged on the upper surface of the mounting plate, supports are arranged on the left side and the right side of the upper surface of the mounting plate, rotating cylinders are rotatably arranged on the sides, close to the vertical center of the mounting box, of the supports, and rotating plates are rotatably arranged on the outer sides of the rotating cylinders. The rotating plates are fixedly connected with the adjacent rotating cylinders through bolts, rotating shafts are rotationally arranged in the supports, the rotating shafts are fixed with the adjacent rotating cylinders through couplings, and rotating rods, an electric control module and a limiting module are rotationally arranged between the supports and the mounting box. According to the unwinding device of the straw packaging machine, under the cooperation of the meshing relation between the worm wheels and the transmission relation between the synchronous belt wheel and the transmission synchronous belt, the rotating cylinders on the left side and the right side can be driven to stop rotating and be self-locked when the motor stops rotating, and then a straw packaging film is driven to stop rotating immediately; and the released packaging film tape is not loosened.

Description

Technical Field

[0001] The utility model belongs to the technical field of straw production, and particularly relates to an unwinding device of a straw packaging machine. Background Art

[0002] The design and material of straw packaging are varied, aiming to protect the hygiene of straws, facilitate transportation and storage, and also take into account environmental protection and user experience factors. Straw packaging must not only meet the basic protection and storage functions, but also conform to environmental protection trends, focus on user experience, and be able to convey brand value. The unwinding device of the existing straw packaging machine sets a brake module on the rotating shaft that drives the packaging film roll to rotate. When the motor stops, the packaging film roll is stopped immediately by the brake module to prevent the packaging film roll from loosening. However, in actual use, the brake module will continue to wear out, which makes the brake module less effective when used for a long time.

[0003] For example, the utility model with the announcement number CN215098599U discloses a reeling device for a straw packaging machine, including a mounting bracket, a packaging film roll, a rotating shaft, a threaded sleeve, a bearing and a locking nut. The bearing is mounted and fixed on the mounting bracket, the rotating shaft is supported on the mounting bracket through the bearing, the threaded sleeve is fitted and fixed on the rotating shaft by screws, the locking nut is screwed on the threaded sleeve, which is located at both ends of the packaging film roll to lock and fix the packaging film roll on the threaded sleeve, and also includes a blocking sleeve and a blocking belt, the blocking sleeve is fitted and fixed on the rotating shaft by screws. On the rotating shaft, it is located between the mounting bracket and the threaded sleeve; two pin shafts are arranged on the mounting bracket, and the two ends of the blocking belt are respectively fixed on the two pin shafts, and the blocking belt is fit with the circumferential surface of the blocking sleeve. In the technical solution of this patent, in the process of the motor driving the packaging film roll to rotate, the blocking sleeve and the blocking belt are cooperated to make the blocking belt fit on the rotating shaft, and the packaging film roll is braked by the friction force between the blocking belt and the rotating shaft. However, after long-term use, the wear caused by friction will reduce the effectiveness of the brake module during long-term use. Utility Model Content

[0004] In view of this, the utility model aims at the deficiencies of the prior art and provides a unwinding device for a straw packaging machine. Through the meshing relationship between the worm gears and the transmission relationship between the synchronous pulley and the transmission synchronous belt, the rotating cylinders on the left and right sides can be driven to stop and self-lock when the motor stops, thereby driving the straw packaging film to stop immediately, so that the released packaging film belt will not loosen.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a reeling device of a straw packaging machine, including a mounting plate, a mounting box is arranged on the upper surface of the mounting plate, supports are arranged on the left and right sides of the upper surface of the mounting plate, a rotating cylinder is rotatably arranged on one side of the support close to the vertical center of the mounting box, a rotating plate is rotatably arranged on the outer side of the rotating cylinder, the rotating plates are respectively connected and fixed to adjacent rotating cylinders by bolts, a rotating shaft is rotatably arranged inside the support, the rotating shaft is respectively fixed to adjacent rotating cylinders by couplings, a rotating rod is rotatably arranged between the support and the mounting box, and the left and right ends of the rotating rod are connected to The outer arc surface of the rotating shaft is fixedly sleeved with a synchronous pulley, and the synchronous pulleys are respectively connected to the vertically adjacent transmission synchronous belts. The installation box is also provided with an electric control module for driving the rotating drum to rotate, and the support is also provided with a limit module for limiting the packaging film roll; the electric control module includes a worm gear fixedly sleeved on the middle part of the outer arc surface of the rotating rod, and two rotating seats 1 symmetrically distributed front and back are provided at the inner bottom end of the installation box, a worm is rotatably arranged between the two rotating seats 1, and the worm is meshed with the adjacent worm gear, and a motor 1 is provided on the rear side of the rear rotating seat 1, and the output shaft of the motor 1 is fixed to the adjacent worm gear by a coupling.

[0006] As a further improvement of the present invention, the limit module includes a guide slot opened on one side of the two supports near the vertical center of the installation box, and sliding seats are slidably arranged inside the two guide slots, a limit rod is arranged between the two sliding seats, and an electric drive unit for driving the limit rod to move is also arranged on the support; the electric drive unit includes two rotating seats symmetrically welded and fixed inside each support, and guide rails are rotatably arranged between two vertically adjacent rotating seats, and two sliding blocks symmetrically distributed up and down are slidably arranged on the outer sides of the two guide rails, and connecting rods are rotatably arranged on the front sides of the sliding blocks, and the connecting rods are respectively rotatably connected to adjacent sliding seats, and a driving component for driving the sliding seat to move is also arranged on the support.

[0007] As a further improvement of the utility model, the driving assembly includes a bidirectional screw rod rotatably arranged between two vertically adjacent rotating seats, the sliding blocks are respectively threadedly connected to the adjacent bidirectional screw rods, motors are respectively arranged inside the two supports, and the output shafts of motors are respectively fixed to the adjacent bidirectional screw rods through couplings; a control panel is arranged on the front side of the support, and motors one and two are electrically connected to the control panel.

[0008] As a further improvement of the utility model, a rubber pad is arranged on the front side of the limiting rod.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] First, the packaging film roll of the straw is placed between two rotating cylinders, and the bolts are tightened by external tools to fix the rotating plate and the rotating cylinder, so that the packaging film roll of the straw can be quickly and stably installed and fixed.

[0011] Secondly, the operation of motor 1 is regulated by the control panel, and the meshing relationship between the worm and the worm wheel drives the worm wheel to rotate, and then the worm wheel drives the rotating rod to rotate, and drives the packaging film roll between the two rotating cylinders to rotate, so as to realize the unwinding of the straw packaging film. In the unwinding process, the meshing relationship between the worm wheels and the worm wheels, and the transmission relationship between the synchronous pulley and the transmission synchronous belt can drive the rotating cylinders on the left and right sides to stop and self-lock when the motor stops, and then drive the straw packaging film to stop immediately, so that the released packaging film belt will not loosen.

[0012] Thirdly, during the unwinding process, the control panel controls the two motors to run synchronously, and the sliding block and the connecting rod rotate, as well as the connecting rod and the sliding seat. The sliding blocks on the upper and lower sides drive the sliding seats to slide forward inside the guide groove through the connecting rod, so that the two sliding seats drive the limiting rods forward to contact the packaging film roll, which can further limit the packaging film roll and effectively prevent the packaging film roll from loosening when the packaging machine stops.

[0013] Fourthly, the contact between the rubber pad and the packaging film roll can make the limiting rod contact the packaging film roll flexibly, thereby increasing the friction between the limiting rod and the packaging film roll during the process of limiting the packaging film roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal plane structure of the utility model.

[0019] In the figure: 101, mounting plate; 102, mounting box; 103, support; 104, rotating cylinder; 105, rotating plate; 106, rotating shaft; 107, rotating rod; 108, synchronous pulley; 109, transmission synchronous belt; 110, rotating seat one; 111, worm gear; 112, worm; 113, motor one; 201, guide slide; 202, sliding seat; 203, limit rod; 204, rotating seat two; 205, guide rail; 206, sliding block; 207, connecting rod; 208, bidirectional screw; 209, motor two; 210, rubber pad; 301, control panel. DETAILED DESCRIPTION

[0020] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0021] like Figure 1 , 2 4, comprising a mounting plate 101, an installation box 102 is arranged on the upper surface of the mounting plate 101, and supports 103 are arranged on both sides of the upper surface of the mounting plate 101, and a rotating cylinder 104 is rotatably arranged on one side of the support 103 close to the vertical center of the mounting box 102, and a rotating plate 105 is rotatably arranged on the outer side of the rotating cylinder 104, and the rotating plates 105 are respectively connected and fixed to the adjacent rotating cylinders 104 by bolts, and a rotating shaft 106 is rotatably arranged inside the support 103, and the rotating shaft 106 is rotatably arranged inside the support 103. 06 are respectively fixed to the adjacent rotating cylinders 104 by couplings, and a rotating rod 107 is rotatably arranged between the support 103 and the installation box 102. The left and right ends of the rotating rod 107 and the outer arc surface of the rotating shaft 106 are fixedly sleeved with synchronous pulleys 108, and the synchronous pulleys 108 are respectively connected to the vertically adjacent transmission synchronous belts 109. The installation box 102 is also provided with an electric control module for driving the rotating cylinder 104 to rotate, and the support 103 is also provided with a limit module for limiting the packaging film roll.

[0022] like Figure 2 , 3 As shown in Figure 4, the electronic control module includes a worm gear 111 fixedly sleeved on the middle part of the outer arc surface of the rotating rod 107, and two rotating seats 110 symmetrically distributed front and back are arranged at the inner bottom end of the installation box 102, and a worm 112 is rotatably arranged between the two rotating seats 110, and the worm 112 is meshed and connected with the adjacent worm gear 111, and a motor 113 is arranged on the rear side of the rear rotating seat 110, and the output shaft of the motor 113 is fixed to the adjacent worm 112 through a coupling.

[0023] like Figure 2 , 3 4, the limit module includes a guide slot 201 opened on one side of the vertical center of the two supports 103 near the installation box 102, and the two guide slots 201 are slidably provided with a sliding seat 202 inside, and a limit rod 203 is arranged between the two sliding seats 202. The support 103 is also provided with an electric drive unit for driving the limit rod 203 to move; the electric drive unit includes a rotating seat 204 symmetrically welded and fixed inside each support 103, and a guide rail 205 is rotatably arranged between two vertically adjacent rotating seats 204, and two upper guide rails 205 are slidably arranged on the outer sides of the two guide rails 205. The sliding blocks 206 are symmetrically distributed below, and the front sides of the sliding blocks 206 are rotatably provided with connecting rods 207, which are rotatably connected to the adjacent sliding seats 202 respectively. The support 103 is also provided with a driving component for driving the sliding block 206 to move; the driving component includes a bidirectional screw rod 208 rotatably set between two vertically adjacent rotating seats 204, and the sliding blocks 206 are respectively threadedly connected to the adjacent bidirectional screw rods 208. The two supports 103 are each internally provided with a motor 209, and the output shafts of the motor 209 are respectively fixed to the adjacent bidirectional screw rods 208 through couplings.

[0024] like Figure 1 , 2 As shown, a control panel 301 is disposed on the front side of the support 103 , and the motor 1 113 and the motor 2 209 are both electrically connected to the control panel 301 .

[0025] When the straws need to be packaged, the staff places the packaging film roll of the straws between the two rotating cylinders 104, and then rotates the rotating plate 105 on the rotating cylinder 104 to make the rotating plate 105 contact with the packaging film roll, and then uses an external tool to tighten the bolts to fix the rotating plate 105 and the rotating cylinder 104, so that the packaging film roll of the straws can be quickly and stably installed and fixed; the operation of the motor 113 is regulated by the control panel 301, so that the output shaft of the motor 113 drives the worm 112 connected thereto to rotate, and then the worm 112 is driven by the worm 11 The meshing relationship between the worm wheel 111 and the worm wheel 111 drives the worm wheel 111 to rotate, and then the worm wheel 111 drives the rotating rod 107 to rotate, so that the synchronous pulleys 108 at the left and right ends of the rotating rod 107 rotate, and the transmission relationship between the vertically adjacent synchronous pulleys 108 and the transmission synchronous belt 109 drives the two synchronous pulleys 108 on the upper side to rotate, and then the two rotating cylinders 104 rotate, driving the packaging film roll between the two rotating cylinders 104 to rotate, so as to realize the unwinding of the straw packaging film. In the unwinding process, The meshing relationship between the worm gears 111 and 111, and the transmission relationship between the synchronous pulley 108 and the transmission synchronous belt 109 can drive the rotating drums 104 on the left and right sides to stop and self-lock when the motor stops, thereby driving the straw packaging film to stop immediately, so that the released packaging film belt will not be loose; in the process of unwinding, the control panel 301 controls the two motors 209 to run synchronously, so that the output shafts of the motors 209 respectively drive the bidirectional screw rods 208 connected thereto to rotate, and then the bidirectional screw rods 208 and the sliding block 206 are rotated. The threaded relationship makes the sliding blocks 206 on the upper and lower sides move towards each other. During the movement of the sliding block 206, the sliding block 206 and the connecting rod 207 rotate, and the connecting rod 207 and the sliding seat 202 rotate, so that the sliding blocks 206 on the upper and lower sides drive the sliding seat 202 to slide forward inside the guide slide groove 201 through the connecting rod 207, so that the two sliding seats 202 drive the limiting rod 203 forward to contact the packaging film roll, which can further limit the packaging film roll and effectively prevent the packaging film roll from loosening when the packaging machine stops.

[0026] According to another embodiment of the present invention, Figure 1 , 2 As shown in FIG. 4 , a rubber pad 210 is provided on the front side of the limiting rod 203. In the process of limiting the packaging film roll, the contact between the rubber pad 210 and the packaging film roll can make the limiting rod 203 flexibly contact with the packaging film roll while increasing the friction between the limiting rod 203 and the packaging film roll.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A reeling device for a straw packaging machine, comprising a mounting plate (101), a mounting box (102) being arranged on the upper surface of the mounting plate (101), and supports (103) being arranged on both left and right sides of the upper surface of the mounting plate (101), characterized in that: A rotating cylinder (104) is rotatably provided on one side of the support (103) close to the vertical center of the installation box (102), a rotating plate (105) is rotatably provided on the outer side of the rotating cylinder (104), the rotating plates (105) are respectively connected and fixed to the adjacent rotating cylinders (104) by bolts, a rotating shaft (106) is rotatably provided inside the support (103), the rotating shaft (106) is respectively fixed to the adjacent rotating cylinders (104) by couplings, and the support (103) ) and the installation box (102) are rotatably provided with a rotating rod (107), and the left and right ends of the rotating rod (107) and the outer arc surface of the rotating shaft (106) are fixedly sleeved with synchronous pulleys (108), and the synchronous pulleys (108) are respectively connected to the vertically adjacent transmission synchronous belts (109). The installation box (102) is also provided with an electric control module for driving the rotating drum (104) to rotate, and the support (103) is also provided with a limiting module for limiting the packaging film roll.

2. The unwinding device of the straw packaging machine according to claim 1, characterized in that: The electric control module comprises a worm wheel (111) fixedly sleeved on the middle part of the outer arc surface of the rotating rod (107); two rotating seats (110) symmetrically distributed front and back are arranged at the inner bottom end of the installation box (102); a worm (112) is rotatably arranged between the two rotating seats (110); the worm (112) is meshedly connected with the adjacent worm wheel (111); a motor (113) is arranged on the rear side of the rear rotating seat (110); the output shaft of the motor (113) is fixed to the adjacent worm (112) via a coupling.

3. The unwinding device of the straw packaging machine according to claim 2, characterized in that: The limit module comprises a guide slot (201) provided on one side of the vertical center of the two supports (103) close to the installation box (102); a sliding seat (202) is slidably arranged inside the two guide slots (201); a limit rod (203) is arranged between the two sliding seats (202); and an electric drive unit for driving the limit rod (203) to move is also arranged on the support (103).

4. The unwinding device of the straw packaging machine according to claim 3, characterized in that: The electric drive unit comprises a rotating seat (204) symmetrically welded and fixed inside each support (103); a guide rail (205) is rotatably arranged between two vertically adjacent rotating seats (204); two sliding blocks (206) symmetrically distributed up and down are slidably arranged on the outer sides of the two guide rails (205); a connecting rod (207) is rotatably arranged on the front sides of the sliding blocks (206); the connecting rods (207) are rotatably connected to the adjacent sliding seats (202), and a driving component for driving the sliding blocks (206) to move is also arranged on the support (103).

5. The unwinding device of the straw packaging machine according to claim 4, characterized in that: The driving assembly includes a bidirectional screw rod (208) rotatably arranged between two vertically adjacent rotating seats (204), a sliding block (206) is respectively threadedly connected to the adjacent bidirectional screw rods (208), and a motor (209) is arranged inside the two supports (103), and the output shaft of the motor (209) is respectively fixed to the adjacent bidirectional screw rods (208) through a coupling.

6. The unwinding device of the straw packaging machine according to claim 5, characterized in that: A control panel (301) is provided on the front side of the support (103), and both the motor 1 (113) and the motor 2 (209) are electrically connected to the control panel (301).

7. The unwinding device of the straw packaging machine according to claim 3, characterized in that: A rubber pad (210) is provided on the front side of the limiting rod (203).

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