Film wrapping and paper pushing device

Abstract

The utility model discloses a film wrapping and paper pushing device which comprises a base plate, a paper pushing component, a driving wheel, a driving connecting rod and a paper pushing driving component. The paper pushing component is connected with the base plate in a front-back sliding mode. The driving wheel is in a disc shape and is rotationally connected with the base plate. And the other end of the driving connecting rod is in transmission connection with the paper pushing component. The paper pushing driving component is used for driving the driving wheel to rotate. According to the film wrapping and paper pushing device, the disc-shaped driving wheel is adopted to drive the paper pushing component, the structure is simple, and high-frequency back-and-forth driving can be met. And the disc-shaped driving wheel is large in rotational inertia and easy to cross a dead point position, and the paper pushing component has enough push-pull force.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging automation equipment, in particular to a film-wrapping paper pushing device. Background Art

[0002] In tissue packaging equipment, the tissue stack needs to be pushed toward the packaging film material to achieve the effect of wrapping the packaging film on the outside of the tissue stack. The tissue stack needs to be pushed a long distance so that the packaging film can wrap a full circle. At the same time, the tissue packaging has a fast beat and a short cycle time, which requires a high level of paper pushing action.

[0003] In the prior art, a motor is generally used to drive a crank rod to rotate, and the crank rod drives a swing arm to swing back and forth through a crank rocker structure, thereby driving the paper pushing component to achieve reciprocating movement. This paper pushing mechanism has a large number of connecting rods, high requirements for the drive motor, and high cost; and the connecting rod structure has a dead point position, which is prone to failure. Utility Model Content

[0004] The utility model aims to provide a film-wrapping paper pushing device to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0005] The technical solutions adopted to solve the above technical problems are:

[0006] A film-wrapping paper pushing device comprises: a base plate, a paper pushing component, a driving wheel, a driving connecting rod and a paper pushing driving component;

[0007] The paper pushing component is connected to the base plate in a forward and backward sliding manner, the driving wheel is in a disc shape and is rotatably connected to the base plate, one end of the driving connecting rod is eccentrically hinged to the driving wheel, and the other end is transmission-connected to the paper pushing component, and the paper pushing driving component is used to drive the driving wheel to rotate.

[0008] The coated paper pushing device provided by the utility model has at least the following beneficial effects: the paper pushing driving component can drive the driving wheel to rotate, so that one end of the driving connecting rod rotates with the driving wheel, and the other end of the driving connecting rod drives the paper pushing component to move forward and backward, thereby realizing the paper pushing action. The disc-shaped driving wheel is used to drive the paper pushing component, which has a simple structure and can meet the high-frequency reciprocating drive. In addition, the disc-shaped driving wheel has a large rotational inertia, which is easy to pass the dead point position and enables the paper pushing component to have sufficient pushing and pulling force.

[0009] As a further improvement of the above technical solution, the rotation axis of the driving wheel is perpendicular to the sliding direction of the paper pushing member.

[0010] As a further improvement of the above technical solution, the rotation axis of the driving wheel is aligned front-to-back with the paper pushing member.

[0011] As a further improvement of the above technical solution, the base plate is provided with an avoidance groove, the paper pushing components are all arranged on the upper side of the base plate, and the lower part of the driving wheel is arranged in the avoidance groove.

[0012] As a further improvement of the above technical solution, a driving shaft is provided on one axial side of the driving wheel, the driving shaft is coaxially and fixedly connected to the driving wheel, the driving shaft is rotatably connected to the base plate, and the paper pushing driving component is connected to the driving shaft.

[0013] As a further improvement of the above technical solution, the length of the driving connecting rod is adjustable.

[0014] As a further improvement of the above technical solution, both ends of the driving connecting rod are provided with joint bearings, and the two joint bearings are respectively transmission-connected to the outer edge of the driving wheel and the paper pushing member.

[0015] As a further improvement of the above technical solution, the paper pushing component includes a push rod and a push plate, the rear end of the push rod is slidably connected to the base plate forward and backward, and the push plate is arranged at the front end of the push rod.

[0016] As a further improvement of the above technical solution, the push plate is elastically connected to the push rod along the front-to-back direction.

[0017] As a further improvement of the above technical solution, the push plate has a positioning portion, and the push rod is provided with a sensing component for detecting the position of the positioning portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the film-wrapping and paper-pushing device provided by the utility model;

[0020] Figure 2 This is a side view of an embodiment of the film-wrapping and paper-pushing device provided by the utility model;

[0021] Figure 3 This is another three-dimensional schematic diagram of an embodiment of the film-wrapping and paper-pushing device provided by the utility model;

[0022] Figure 4 The utility model provides a film-wrapping and paper-pushing device, and a top view of an embodiment thereof.

[0023] In the figure: 100, base plate; 110, avoidance groove; 200, paper pushing component; 210, push rod; 211, sensing component; 220, push plate; 221, paper pushing part; 300, driving wheel; 310, driving shaft; 400, driving connecting rod; 410, spherical bearing; 500, paper pushing driving component; 510, paper pushing driving unit; 520, transmission component. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present utility model, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood to exclude the number, and above, below, within, etc. are understood to include the number.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Reference Figures 1 to 4 The following embodiments are made of the film-wrapping and paper-pushing device of the utility model:

[0029] A film-wrapping paper pushing device comprises: a base plate 100, a paper pushing member 200, a driving wheel 300, a driving connecting rod 400 and a paper pushing driving member 500.

[0030] The paper pushing member 200 is connected to the substrate 100 by sliding forward and backward. The driving wheel 300 is in the shape of a disc. The driving wheel 300 is connected to the substrate 100 for rotation. One end of the driving connecting rod 400 is eccentrically hinged to the driving wheel 300, and the other end is connected to the paper pushing member 200 for transmission. The paper pushing driving member 500 is connected to the driving wheel 300 for transmission, and makes the driving wheel 300 rotate relative to the substrate 100.

[0031] In actual use, the paper pushing driving component 500 can drive the driving wheel 300 to rotate, so that one end of the driving connecting rod 400 rotates with the driving wheel 300, and the other end of the driving connecting rod 400 drives the paper pushing component 200 to move forward and backward, thereby realizing the paper pushing action. The disc-shaped driving wheel 300 is used to drive the paper pushing component 200, which has a simple structure and can meet high-frequency reciprocating drive. In addition, the disc-shaped driving wheel 300 has a large moment of inertia, which is easy to pass the dead point position and enables the paper pushing component 200 to have sufficient pushing and pulling force.

[0032] The rotation axis of the driving wheel 300 is perpendicular to the sliding direction of the paper pushing member 200 , so that when the driving wheel 300 rotates, the end of the driving link 400 connected to the driving wheel 300 moves a greater distance in the sliding direction of the paper pushing member 200 .

[0033] In the present embodiment, the driving wheel 300 is arranged at the rear side of the paper pushing member 200. The rotation axis of the driving wheel 300 extends in the left-right direction. On the projection plane perpendicular to the left-right direction, the rotation axis of the driving wheel 300 is aligned front-to-back with the paper pushing member 200. At this time, the front-to-back reciprocating stroke of the paper pushing member 200 is the largest, which is consistent with the diameter of the driving wheel 300. It is worth noting that the rotation axis of the driving wheel 300 is specifically aligned front-to-back with the hinge position of the front end of the driving connecting rod 400, and the stroke size of the paper pushing member 200 is consistent with the diameter of the hinge position of the rear section of the driving connecting rod 400 and the driving wheel 300.

[0034] The paper pushing member 200 is arranged on the upper side of the substrate 100. The distance between the paper pushing member 200 and the substrate 100 is smaller than the diameter of the driving wheel 300. In this embodiment, the substrate 100 is provided with a avoidance groove 110. The avoidance groove 110 is in a rectangular shape extending forward and backward. The lower part of the driving wheel 300 is arranged in the avoidance groove 110. The avoidance groove 110 can provide a holding space for the driving wheel 300 and the rear section of the driving connecting rod 400.

[0035] A driving shaft 310 is provided on one circumferential side of the driving wheel 300. The driving shaft 310 is coaxially fixedly connected to the driving wheel 300. The driving shaft 310 is rotatably connected to the base plate 100 along its axial direction, and the paper pushing driving component 500 has a paper pushing driving end that is transmission-connected to the driving shaft 310 and causes the driving shaft 310 to rotate around its own axis relative to the base plate 100. Referring to the accompanying drawings, in this embodiment, the paper pushing component 200 is arranged on the right side of the driving wheel 300, and the driving shaft 310 is arranged on the left side of the driving wheel 300.

[0036] The paper pushing driving component 500 includes: a paper pushing driving unit 510 and a transmission assembly 520. The transmission assembly 520 is respectively connected to the paper pushing driving unit 510 and the driving shaft 310. Considering the convenience of controlling the rotation speed and accuracy of the driving wheel 300, the paper pushing driving unit 510 in this embodiment adopts a servo motor. The transmission assembly 520 is connected to the output shaft of the paper pushing driving unit 510 and the driving shaft 310 by a belt transmission.

[0037] In some other embodiments, the translation drive unit may be a rotation drive element such as a stepper motor or a pneumatic motor, and the transmission assembly 520 may also adopt other transmission methods such as chain transmission, gear transmission or worm gear transmission.

[0038] The paper pushing member 200 includes a push rod 210 and a push plate 220. The push rod 210 is in the shape of a long strip extending forward and backward. The rear end of the push rod 210 is slidably connected to the base plate 100 through a linear slide rail extending forward and backward. The push plate 220 is arranged at the front end of the push rod 210. The front end of the push plate 220 has a paper pushing portion 221 in a rectangular plane shape and perpendicular to the front and rear direction.

[0039] In order to avoid damage to the paper-pulling material, in this embodiment, the push plate 220 is elastically connected to the push rod 210 in the front-to-back direction. Specifically, the rear side of the push plate 220 has a guide rod extending forward and backward, and the rear end of the guide rod is movably inserted into the front end of the push rod 210. A spring is provided on the outer sleeve of the guide rod, and the front and rear ends of the spring are elastically abutted against the push plate 220 and the push rod 210 respectively.

[0040] In the process of pushing the material when the push rod 210 moves forward, after the push plate 220 contacts the paper-pulling material, it can compress the spring to form a buffer, thereby avoiding the paper-pulling material from being deformed by impact.

[0041] Furthermore, when the paper material is stuck during the forward pushing process, in order to avoid damage to the material or the film-wrapped paper pushing device, the push rod 210 is provided with a sensing component 211. The rear side of the push plate 220 has a positioning portion, and the sensing component 211 is used to detect the position of the positioning portion.

[0042] In this embodiment, the sensing component 211 is a proximity switch arranged in the front-to-back direction. When the paper material is stuck, the push plate 220 compresses the spring and moves backward relative to the push rod 210 to the alarm position. At this time, the sensing component 211 changes the detection state of the positioning part of the push plate 220, so that the material is determined to be stuck and the pushing is stopped. In some other embodiments, the sensing component 211 can also adopt a photoelectric device arranged in the left and right directions.

[0043] In the projection in the up-down direction, the driving wheel 300 and the paper pushing member 200 are respectively arranged on the left and right sides of the driving connecting rod 400. Both the front and rear ends of the driving connecting rod 400 are provided with joint bearings 410. The outer edge of the driving wheel 300 and the side of the pushing rod 210 are provided with connecting columns extending left and right. The two joint bearings 410 are respectively arranged on the two connecting columns with the transmission sleeve.

[0044] In order to adapt to different paper sizes, the length of the driving connecting rod 400 is preferably adjustable. Specifically, the driving connecting rod 400 includes a front rod, a rear rod and a connecting rod. The front rod and the rear rod are respectively arranged at the front and rear ends of the connecting rod and are adjustably connected to the connecting rod.

[0045] In this embodiment, the connecting rod is a bidirectional screw structure. The front rod and the rear rod are respectively threadedly sleeved on the front and rear ends of the connecting rod, and the threads of the front rod and the rear rod are rotated in opposite directions. When the connecting rod is rotated, the front rod and the rear rod can move closer to each other or farther away from each other under the action of the reverse threads, thereby adjusting the pushing position of the pushing member.

[0046] In some other embodiments, the front rod, the rear rod and the connecting rod may also be adjustably locked using radially extending pins or screws.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Although the embodiments of the present invention have been shown and described, those skilled in the art may make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and purpose of the present invention. These changes, modifications, equivalent variations or substitutions are all included in the scope defined by the claims of this application. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A film-wrapping paper pushing device, characterized in that: include: A base plate, a paper pushing member, a driving wheel, a driving connecting rod and a paper pushing driving member; The paper pushing component is connected to the base plate in a forward and backward sliding manner, the driving wheel is in a disc shape and is rotatably connected to the base plate, one end of the driving connecting rod is eccentrically hinged to the driving wheel, and the other end is transmission-connected to the paper pushing component, and the paper pushing driving component is used to drive the driving wheel to rotate.

2. The film-wrapping paper pushing device according to claim 1, characterized in that: The rotation axis of the driving wheel is perpendicular to the sliding direction of the paper pushing member.

3. The film-wrapping paper pushing device according to claim 2, characterized in that: The rotation axis of the driving wheel is aligned front-to-back with the paper pushing member.

4. The film-wrapping paper pushing device according to claim 3, characterized in that: The base plate is provided with a position-avoiding groove, the paper pushing components are all arranged on the upper side of the base plate, and the lower part of the driving wheel is arranged in the position-avoiding groove.

5. The film-wrapping paper pushing device according to claim 1, characterized in that: A driving shaft is provided on one axial side of the driving wheel. The driving shaft is coaxially and fixedly connected to the driving wheel. The driving shaft is rotatably connected to the base plate. The paper pushing driving component is connected to the driving shaft.

6. The film-wrapping paper pushing device according to claim 1, characterized in that: The driving connecting rod is adjustable in length.

7. The film-wrapping paper pushing device according to claim 1, characterized in that: Both ends of the driving connecting rod are provided with joint bearings, and the two joint bearings are respectively connected with the outer edge of the driving wheel and the paper pushing component in a transmission manner.

8. The film-wrapping paper pushing device according to claim 1, characterized in that: The paper pushing component comprises a pushing rod and a pushing plate. The rear end of the pushing rod is connected to the base plate for forward and backward sliding movement, and the pushing plate is arranged at the front end of the pushing rod.

9. The film-wrapping paper pushing device according to claim 8, characterized in that: The push plate is elastically connected to the push rod along a front-rear direction.

10. The film-wrapping paper pushing device according to claim 9, characterized in that: The push plate has a positioning portion, and the push rod is provided with a sensing component for detecting the position of the positioning portion.

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