Traction mechanism of filling and sealing machine

Abstract

The utility model discloses a traction mechanism of a filling and sealing machine, which comprises a front traction component, the front traction component comprises a vertically arranged rotating roller, an upper pressing wheel and a lower pressing wheel, and the rotating roller is connected with a first motor. The circumferential side face of the rotating roller comprises an upper pressing face, a lower pressing face and a receding groove formed between the upper pressing face and the lower pressing face, and the upper pressing wheel and the lower pressing wheel are in rotating pressing fit with the upper pressing face and the lower pressing face of the rotating roller correspondingly. The upper pressing wheel and the lower pressing wheel are respectively pressed with the upper pressing surface and the lower pressing surface of the rotating roller to bite the upper end and the lower end of a roll material, and if the roll material is a formed roll material, a convex forming part corresponds to the abdicating groove of the rotating roller, so that the forming part cannot be rubbed and extruded, and a complete forming state is kept. The first motor drives the rotating roller to rotate, the two ends of the coil stock move forwards under traction of the rotating roller, the upper pressing wheel and the lower pressing wheel, the first motor drives the rotating roller to rotate at a constant speed, the coil stock moves forwards at a constant speed, and therefore continuous conveying of the coil stock is achieved.

Description

Technical Field

[0001] The utility model relates to an improved invention of a filling and sealing machine, in particular to a traction mechanism of the filling and sealing machine. Background Art

[0002] The filling and sealing machine is integrated, and the filling and sealing are integrated, which is suitable for the packaging of liquids such as oral liquids and beauty essences. The traction of the existing plastic filling and sealing machine adopts intermittent traction, see the announcement number CN219524328U, the invention name is "A single roll material blowing filling and sealing integrated machine", which specifically discloses the following content: the traction mechanism intermittently pulls the roll material, that is, pulls it forward one station, and after the processing is completed, it is transported forward another station, and the stroke control can be controlled by a servo motor. The traction mechanism includes a clamping member, a reciprocating driving member and a limiting member, the clamping member includes a first clamping plate, a second clamping plate and a mounting seat, the first clamping plate and the second clamping plate are vertically arranged and are connected to a power member that drives them to move toward or in the opposite direction, the power member is arranged on the mounting seat, the power member can be a cylinder, and the first clamping plate and the second clamping plate are each equipped with a cylinder; the reciprocating driving member includes a screw, a nut and a linear guide, the screw and the linear guide are longitudinally arranged, a slide seat is provided on the linear guide, the nut is connected to the mounting seat, and the screw is connected to a servo motor. In the figure, the mounting seat is connected to the linear guide, and the slide seat is installed on the frame. The servo motor rotates forward, driving the screw to rotate clockwise, so that the mounting seat and the linear guide move forward relative to the slide seat, that is, the clamping member clamps the material and moves forward, and the servo motor reverses, then the mounting seat retreats, and the clamping member clamps the material and retreats, so that the clamping member moves forward and backward, and the material is transported intermittently.

[0003] The intermittent conveying of coiled materials has the problems of slow production speed and low efficiency, and is not suitable for continuous production filling machines. Summary of the invention

[0004] In view of the technical problems existing in the background technology, the technical problem solved by the present invention is to provide a traction mechanism of a filling and sealing machine that realizes continuous conveying, thereby improving the production speed.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: the traction mechanism of the filling machine is characterized in that it includes a front traction component, the front traction component includes a vertically arranged rotating roller, an upper pressing wheel and a lower pressing wheel, the rotating roller is connected to the first motor, the circumferential side surface of the rotating roller includes an upper pressing surface, a lower pressing surface and a clearance groove arranged between the upper pressing surface and the lower pressing surface, and the upper pressing wheel and the lower pressing wheel are respectively rotated and pressed with the upper pressing surface and the lower pressing surface of the rotating roller.

[0006] The upper pressing wheel and the lower pressing wheel are pressed against the upper pressing surface and the lower pressing surface of the rotating roller respectively to bite the upper and lower ends of the coil. If the coil is a formed coil, the protruding forming part corresponds to the clearance groove of the rotating roller, so that the forming part will not be rubbed or squeezed and maintain a complete forming state. The first motor drives the rotating roller to rotate, and the two ends of the coil move forward under the traction of the rotating roller and the upper and lower pressing wheels. The first motor drives the rotating roller to rotate at a constant speed, and the coil moves forward at a constant speed, thereby realizing continuous conveying of the coil.

[0007] Preferably, the upper pressing wheel is rotatably arranged on the bracket, and a plurality of the upper pressing wheels are arranged in an arc shape along the upper pressing surface, thereby increasing the contact area between the coil and the rotating roller, increasing the traction force on the coil, and making the coil move forward more stably to avoid slipping.

[0008] Preferably, the bracket includes a column, an upper mounting plate and a lower mounting plate, the upper mounting plate and the lower mounting plate are mounted on the column and have a gap between them and the rotating roller; the upper mounting plate is provided with a first arc segment matching the upper pressing surface on the side facing the rotating roller, and the lower mounting plate is provided with a second arc segment matching the lower pressing surface on the side facing the rotating roller, the first arc segment and the second arc segment correspond to each other up and down, the upper pressing wheel is rotatably mounted on the first arc segment, and the lower pressing wheel is rotatably mounted on the second arc segment. The first arc segment and the second arc segment allow a plurality of upper pressing wheels and a plurality of lower pressing wheels to be arranged in an arc shape, and to be pressed with the upper pressing surface and the lower pressing surface of the rotating roller.

[0009] Preferably, the upper pressing wheel is rotatably connected to a central shaft;

[0010] The first arc section is horizontally provided with a housing cavity for accommodating the upper pressure wheel and vertically provided with a mounting hole for inserting the central axis; the upper and lower ends of the central axis are both provided with a pressing rod for adjusting the pressure between the upper pressure wheel and the upper pressing surface, the pressing rod is horizontally arranged and threadedly connected to the upper mounting plate, and the pressing rod presses the central axis.

[0011] By rotating the push rod, the push rod is horizontally inserted into the mounting hole and presses the center axis, and radially presses relative to the center axis, so that the upper pressure wheel is pressed against the upper pressing surface of the rotating roller. If the coil is thin, the push rod is inserted into the mounting hole. If the coil is thick, the push rod is retracted. In this way, the force acting on the coil by the upper pressure wheel and the upper pressing surface is adjusted to achieve the best traction effect.

[0012] Preferably, the rotating roller includes an outer cylinder and an inner shaft, the outer cylinder is sleeved outside the inner shaft, the outer cylinder and the inner shaft are circumferentially linked, the inner shaft is connected to the first motor, and the outer cylinder is axially movable relative to the inner shaft. The first motor drives the inner shaft to rotate, and the inner shaft drives the rotating roller to rotate; if the height position of the coil changes, the outer cylinder moves axially relative to the inner shaft, so that the upper and lower pressing surfaces and the clearance groove on the outer cylinder correspond to the height of the coil.

[0013] Preferably, a limiting groove is provided on the circumferential side surface of the inner shaft, and a convex block is provided on the inner wall of the outer cylinder, and the convex block is placed in the limiting groove;

[0014] The outer cylinder is connected with a screw rod, the screw rod is vertically arranged and is threadedly connected with the inner shaft.

[0015] The outer cylinder is linked with the inner shaft through the convex block; when the screw is rotated, the inner shaft cannot move axially, so the screw is lifted relative to the inner shaft, and when the screw is lifted, the outer cylinder connected to the screw is lifted relative to the inner shaft.

[0016] Preferably, the upper mounting plate and the lower mounting plate are movably mounted on the column, and the upper mounting plate and the lower mounting plate are locked on the column by locking bolts. When the height position of the coil changes, the height of the upper pressing wheel and the lower pressing wheel is changed accordingly by moving the upper mounting plate and the lower mounting plate to meet the needs of the coil.

[0017] Preferably, the traction mechanism further comprises a rear traction component, and the front traction component and the rear traction component synchronously and continuously convey the coil; the rear traction component pulls the sheet coil, and the front traction component pulls the formed coil. The sheet coil is formed into a formed coil, and the sheet coil and the formed coil are the same continuous coil. The rear traction component pulls the sheet coil, and the front traction component pulls the formed coil, and the two pull synchronously, thereby increasing the traction force and reducing the problem of coil stretching.

[0018] Preferably, the rear traction component comprises traction rollers pressed together, and one of the traction rollers is connected to the second motor. The contact area between the traction roller and the sheet material is large, and the traction is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the utility model being applied to a filling and sealing machine.

[0020] Figure 2 It is a schematic diagram of the front traction component of the utility model.

[0021] Figure 3 It is a schematic diagram of the rotating roller of the utility model.

[0022] Figure 4 It is a schematic diagram of the upper pressing wheel, the lower pressing wheel and the bracket of the utility model.

[0023] Figure 5 It is a schematic diagram of the rear traction component of the utility model.

[0024] Figure 6 A side view of the formed coil. DETAILED DESCRIPTION

[0025] The following describes the details and working principle of the implementation mode and embodiment of the utility model in conjunction with the accompanying drawings. The filling machine uses sheet coils, which include materials such as plastic and aluminum foil. The sheet coils are formed by means of vacuum forming or molding to become three-dimensional continuous molded coils. The bottom of the molded coil has a bottom sealing edge 43, and the top of the molded coil retains a sealing edge 41. The protruding three-dimensional part of the molded coil is the molding part 42. The molded coil is filled and sealed, and finally cut into independent products. In the figure, the X-axis is horizontal, also the left-right direction; the Y-axis is longitudinal, also the front-back direction, the arrow direction of the Y-axis is the coil conveying direction, also the front; the Z-axis is vertical, also the up-down direction.

[0026] The traction mechanism of the filling machine includes a front traction component 1, which includes a vertically arranged rotating roller 6, an upper pressing wheel 7 and a lower pressing wheel 8. The rotating roller 6 is connected to a first motor 10. The circumferential side surface of the rotating roller includes an upper pressing surface 3, a lower pressing surface 5 and a clearance groove 4 arranged between the upper pressing surface and the lower pressing surface. The upper pressing wheel 7 and the lower pressing wheel 8 are respectively rotated and pressed with the upper pressing surface 3 and the lower pressing surface 5 of the rotating roller to bite the upper and lower ends of the coiled material therebetween. When the first motor drives the rotating roller 6 to rotate, the rotating roller and the upper and lower pressing wheels rotate in opposite directions to transport the coiled material forward. The first motor 10 drives the rotating roller 6 to rotate at a uniform speed, and the coiled material moves forward at a uniform speed, thereby realizing continuous transportation of the coiled material. If the coil is a formed coil, the sealing edge 41 of the formed coil is bitten by the upper pressing wheel 7 and the upper pressing surface 3, the bottom sealing edge 43 of the formed coil is bitten by the lower pressing wheel 8 and the lower pressing surface 5, and the protruding forming part 42 of the formed coil corresponds to the clearance groove 5, and the clearance groove accommodates the protruding forming part to prevent the forming part from being rubbed and squeezed, and maintains a complete forming state. If the coil is a sheet coil, the rotating roller 6 and the upper and lower pressing wheels can also pull the coil forward.

[0027] Since the filling machine has many processing steps, if only the front traction component is used to pull the formed coil, a high-power motor drive is required, and it is easy to cause the coil to stretch. In order to make the coil traction stable and reduce the stretching of the coil during the traction process, the traction mechanism also includes a rear traction component 2, and the front traction component and the rear traction component synchronously and continuously convey the coil to increase the traction force; the rear traction component 2 pulls the sheet coil, and the front traction component pulls the formed coil, that is, pulls the formed coil. The front traction component can be arranged between the forming mechanism and the filling mechanism of the filling machine. Since the coil forming, filling and sealing of the filling machine are performed simultaneously, the front traction component is arranged before the sealing of the filling machine, that is, the front traction component pulls the formed coil after filling and sealing, which is better, so that the structure is more compact. The front and rear traction components divide the traction work to further reduce the stretching problem of the coil. The rear traction component 2 includes two traction rollers 22 that are pressed together, and one of the traction rollers is connected to the second motor 23. The two traction rollers rotate in opposite directions to achieve traction of the sheet material. The contact area between the traction roller 22 and the sheet material is large, and the traction is more stable. In addition, the front traction component and the rear traction component are far apart on the frame and are driven by two motors, which is not only easy to install but also has a more streamlined structure.

[0028] The upper pressing wheel 7 is rotatably arranged on the bracket, and there are several upper pressing wheels, which are arranged in an arc shape along the upper pressing surface, so that the coil is in contact with the upper pressing surface 3, increasing the contact area; in the figure, there are three upper pressing wheels 7 and three lower pressing wheels 8, which are evenly installed on the bracket, and the contact area between the coil and the rotating roller is increased by the several upper pressing wheels and the lower pressing wheels, and the traction force on the coil is increased, so that the coil moves forward more stably and avoids slipping during traction. In order to facilitate the adjustment of the height position of the upper pressing wheel 7 and the lower pressing wheel 8, the bracket includes a column 9, an upper mounting plate 15 and a lower mounting plate 16. The upper mounting plate and the lower mounting plate are installed on the column, and there is a gap between the upper mounting plate, the lower mounting plate and the rotating roller 6, so that the coil will not contact the mounting plate. The side of the upper mounting plate 15 facing the rotating roller is provided with a first arc segment 21 matching the upper pressing surface, and the side of the lower mounting plate facing the rotating roller is provided with a second arc segment 24 matching the lower pressing surface. The first arc segment and the second arc segment correspond to each other up and down. The upper pressing wheel 7 is rotatably mounted on the first arc segment 21, and the lower pressing wheel 8 is rotatably mounted on the second arc segment 24. The first arc segment and the second arc segment allow a plurality of upper pressing wheels and a plurality of lower pressing wheels to be arranged in an arc shape and pressed with the upper pressing surface and the lower pressing surface of the rotating roller 6. The upper pressing wheel 7 is rotatably connected to a central shaft 18, which is mounted on the upper mounting plate and does not rotate. The upper pressing wheel is coaxially connected to the central shaft through a bearing, and the upper pressing wheel rotates relative to the central shaft. The first arc segment is horizontally provided with a receiving cavity 19 for receiving the upper pressing wheel, and vertically provided with a mounting hole 20 for inserting the central shaft, the mounting hole passes through the receiving cavity from top to bottom, the upper pressing wheel 7 is placed in the receiving cavity 19, and the upper and lower ends of the central shaft 18 are placed in the mounting hole 20. Both upper and lower ends of the central shaft are equipped with a pressing rod 17 for adjusting the pressure between the upper pressing wheel and the upper pressing surface, the pressing rod is horizontally arranged and threadedly connected to the upper mounting plate 15, the pressing rod extends into the mounting hole to press the central shaft 18, so that the upper pressing wheel is pressed against the upper pressing surface of the rotating roller, and the pressure between the upper pressing wheel and the rotating roller is adjusted by adjusting the depth of the pressing rod. When the coil is thin or the pressure on the coil is insufficient, the push rod 17 is rotated to make it penetrate into the mounting hole 20, press the central axis 18, and increase the pressure between the upper pressing wheel and the upper pressing surface; when the coil is thick or the pressure on the coil is too large, the push rod is rotated in the opposite direction to make it retreat, reducing the pressure between the upper pressing wheel and the upper pressing surface, so as to adjust the pressure on the coil to achieve the best traction effect. The lower pressing wheel can also adopt the above-mentioned installation structure.

[0029] The specifications of the coil and the height of the coil on the frame will vary, in order to adapt to the traction of different coils. The rotating roller 6 includes an outer cylinder 11 and an inner shaft 12, the outer cylinder is sleeved outside the inner shaft, the inner shaft is equivalent to the rotating shaft of the rotating roller, the outer cylinder 11 and the inner shaft 12 are circumferentially linked, that is, the rotation of the inner shaft drives the outer cylinder to rotate, and the inner shaft is connected to the first motor 10. The outer cylinder 11 is axially movable relative to the inner shaft 12, that is, the outer cylinder can be raised and lowered relative to the inner shaft. The first motor 10 drives the inner shaft 12 to rotate, so that the rotating roller 6 rotates; if the height position of the coil changes, the outer cylinder 11 moves axially relative to the inner shaft 12, so that the upper and lower pressing surfaces and the clearance groove on the outer cylinder correspond to the height of the coil. See the attached figure, specifically, the circumferential side of the inner shaft is provided with a limiting groove, the inner wall of the outer cylinder 11 is provided with a convex block 14, the convex block is placed in the limiting groove, and the outer cylinder 11 is linked with the inner shaft 12 through the convex block 14. The outer cylinder is connected with a screw 13, which is vertically arranged and threadedly connected to the inner shaft 12. When the screw is rotated, the inner shaft cannot move axially, that is, cannot be lifted or lowered, so that the screw is lifted or lowered relative to the inner shaft. When the screw 13 is lifted or lowered, the outer cylinder 12 connected to the screw is lifted or lowered relative to the inner shaft. The upper mounting plate 15 and the lower mounting plate 16 are movably mounted on the column 9, and the upper mounting plate and the lower mounting plate are locked on the column by locking bolts. When the height position of the coil changes, the height of the upper pressing wheel and the lower pressing wheel is changed accordingly by moving the upper mounting plate and the lower mounting plate to meet the needs of the coil.

Claims

1. A traction mechanism for a filling and sealing machine, characterized in that: It includes a front traction component, which includes a vertically arranged rotating roller, an upper pressing wheel and a lower pressing wheel. The rotating roller is connected to a first motor. The circumferential side surface of the rotating roller includes an upper pressing surface, a lower pressing surface and a clearance groove arranged between the upper pressing surface and the lower pressing surface. The upper pressing wheel and the lower pressing wheel are respectively rotated and pressed with the upper pressing surface and the lower pressing surface of the rotating roller.

2. The traction mechanism of the filling and sealing machine according to claim 1, characterized in that: The upper pressing wheel is rotatably arranged on the bracket, and a plurality of the upper pressing wheels are arranged in an arc shape along the upper pressing surface.

3. The traction mechanism of the filling and sealing machine according to claim 2, characterized in that: The bracket includes a column, an upper mounting plate and a lower mounting plate, the upper mounting plate and the lower mounting plate are mounted on the column and have a gap between them and the rotating roller; the upper mounting plate is provided with a first arc segment matching the upper pressing surface on the side facing the rotating roller, and the lower mounting plate is provided with a second arc segment matching the lower pressing surface on the side facing the rotating roller, the first arc segment and the second arc segment correspond to each other up and down, the upper pressing wheel is rotatably mounted on the first arc segment, and the lower pressing wheel is rotatably mounted on the second arc segment.

4. The traction mechanism of the filling and sealing machine according to claim 3, characterized in that: The upper pressing wheel is rotatably connected to a central shaft; The first arc section is horizontally provided with a housing cavity for accommodating the upper pressure wheel and vertically provided with a mounting hole for inserting the central axis; the upper and lower ends of the central axis are both provided with a pressing rod for adjusting the pressure between the upper pressure wheel and the upper pressing surface, the pressing rod is horizontally arranged and threadedly connected to the upper mounting plate, and the pressing rod presses the central axis.

5. The traction mechanism of the filling and sealing machine according to claim 1, characterized in that: The rotating roller includes an outer cylinder and an inner shaft, wherein the outer cylinder is sleeved outside the inner shaft, the outer cylinder and the inner shaft are circumferentially linked, the inner shaft is connected to a first motor, and the outer cylinder is axially movable relative to the inner shaft.

6. The traction mechanism of the filling and sealing machine according to claim 5, characterized in that: A limiting groove is arranged on the circumferential side surface of the inner shaft, and a convex block is arranged on the inner wall of the outer cylinder, and the convex block is placed in the limiting groove; The outer cylinder is connected with a screw rod, the screw rod is vertically arranged and is threadedly connected with the inner shaft.

7. The traction mechanism of the filling and sealing machine according to claim 3, characterized in that: The upper mounting plate and the lower mounting plate are movably mounted on the column, and the upper mounting plate and the lower mounting plate are locked on the column by locking bolts.

8. The traction mechanism of the filling and sealing machine according to claim 1, characterized in that: The traction mechanism further comprises a rear traction component, and the front traction component and the rear traction component synchronously and continuously convey the coil; the rear traction component pulls the sheet coil, and the front traction component pulls the formed coil.

9. The traction mechanism of the filling and sealing machine according to claim 8, characterized in that: The rear traction component includes traction rollers pressed together, and one of the traction rollers is connected to the second motor.

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