Thin paper adsorption feeding mechanism

Abstract

The utility model discloses a thin paper sheet adsorption feeding mechanism, comprising a lifting device and a feeding platform installed on the lifting device, the feeding platform is provided with left and right movable blocks that can be opened to the middle in an inverted "eight" shape; an elastic breathable material layer for placing materials is fixedly connected between the left and right movable blocks; a hollow adsorption piece for adsorbing materials through the elastic breathable material layer is provided between the left and right movable blocks and below the elastic breathable material layer, and the hollow adsorption piece can be telescopically arranged on the feeding platform in the up-down direction. The utility model has a reasonable structure, cooperates with an existing paper roll forming core shaft to cover the paper sheet on its surface, simplifies the structure, and reduces the cost.

Description

Technical Field

[0001] The utility model relates to the field of roll paper packaging equipment, in particular to a paper sheet adsorption feeding mechanism. Background Art

[0002] The existing paper sheet feeding mechanism feeds the cut paper sheets to the position of the paper roll forming core shaft, and then bends the paper sheets and wraps them on the surface of the paper roll forming core shaft through the bending mechanism. The disadvantages of this structure are: when conveying thin paper sheets, due to the light weight of thin paper sheets, they are easy to move, resulting in a high defective rate, and the feeding mechanism and the bending mechanism need to cooperate in feeding. Utility Model Content

[0003] In view of the above problems, the utility model provides a thin paper sheet adsorption feeding mechanism to solve the problems in the prior art that the thin paper sheets are light in weight, easily displaced, have a high defective rate, and require a feeding mechanism and a bending mechanism to cooperate in feeding, resulting in a complex structure and high cost.

[0004] The thin paper sheet adsorption feeding mechanism is characterized in that it includes a lifting device and a feeding platform installed on the lifting device, the feeding platform is provided with left and right movable blocks that can be opened to the middle in an inverted "eight" shape; an elastic breathable material layer for placing materials is fixedly connected between the left and right movable blocks; a hollow adsorption component for adsorbing materials through the elastic breathable material layer is provided between the left and right movable blocks and below the elastic breathable material layer, and the hollow adsorption component can be telescopically arranged on the feeding platform in the up and down directions.

[0005] Preferably, the hollow adsorption member is an adsorption disk. Alternatively, the hollow adsorption member is an adsorption tube.

[0006] Preferably, the hollow adsorbent is arranged on the feeding platform through a first elastic member, and the hollow adsorbent can be extended and retracted in the up and down directions through the first elastic member, and in a natural state, the upper adsorption port of the hollow adsorbent supports the elastic breathable material layer. Further, the first elastic member is a spring with one end connected to the feeding platform and the other end connected to the hollow adsorbent.

[0007] Preferably, a connecting arm is provided at the bottom of each of the left and right movable blocks, and the connecting arm is connected to the feeding platform in a swingable manner around an axis. A second elastic member for driving the connecting arm to swing outward is provided between the two movable blocks and the feeding platform. In a natural state, the left and right movable blocks are in an outwardly opened state.

[0008] Further, the second elastic member is a torsion spring arranged on the shaft. Alternatively, the second elastic member is a tension spring for applying an outward force to the movable block or the connecting arm.

[0009] Preferably, a movable block limiter is provided on the feeding platform to limit the opening range of the two movable blocks.

[0010] Preferably, the elastic breathable material layer is made of cloth, bamboo fiber or other materials.

[0011] Beneficial effects of the utility model:

[0012] 1. The elastic breathable material layer of the utility model is fixed by the left and right movable blocks, and the thin paper sheet is firmly adsorbed on the elastic breathable material layer by the hollow adsorption member, which effectively avoids the movement of the thin paper sheet and reduces the defective product rate.

[0013] 2. By setting the hollow adsorbent to a structure that can be extended in the up-down direction, when the feeding platform rises to the core shaft position, the thin paper sheet, the elastic breathable material layer and the hollow adsorbent are held against the roll paper forming core shaft. As the feeding platform continues to rise, the hollow adsorbent moves downward under the pressure of the roll paper forming core shaft, and the middle of the thin paper sheet and the elastic breathable material layer is sunken downward, and the two ends are tilted upward, so that the thin paper sheet is bent and wrapped around the outer surface of the roll paper forming core shaft. When the feeding platform descends, the hollow adsorbent is reset under the action of the first elastic member.

[0014] 3. The left and right movable blocks are set to an openable and closable structure. When a downward force is applied to the middle of the elastic breathable material layer, the left and right movable blocks are driven by the elastic breathable material layer to close toward the middle, further bending the thin paper sheet and wrapping it on the outer surface of the paper roll forming core shaft. When the feeding platform descends, the hollow adsorbent is reset under the action of the first elastic member, and the left and right movable blocks are reset, and the elastic breathable material layer is tightened and reset.

[0015] 4. The utility model has a reasonable structure and cooperates with the existing paper roll forming core shaft to wrap the paper sheet on its surface, which simplifies the structure and reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the thin paper sheet adsorption and feeding mechanism.

[0017] Figure 2 It is a three-dimensional schematic diagram of the thin paper sheet adsorption and feeding mechanism.

[0018] Figure 3 This is an enlarged schematic diagram of the feeding platform.

[0019] Lifting device——100 Nut seat——110 Bolt——111 Screw rod——120

[0020] Feeding platform——200 Left movable block——210 Right movable block——220

[0021] Connecting arm——230 Shaft——231 Movable block stopper——232

[0022] Elastic breathable material layer——240 Hollow adsorption element——250 Spring——251 DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the implementation methods of the present application, not all of the implementation methods; and the structures shown in the accompanying drawings are only schematic and do not represent physical objects. It should be noted that based on these embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0024] It should be noted that the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical or equivalent elements in the process, method, article or device including the elements.

[0025] The terms "upper", "lower", "inner", "outer", etc. do not constitute absolute spatial relationship limitations, but are only concepts of relative positions, which can be understood by those skilled in the art.

[0026] A thin paper sheet adsorption feeding mechanism mainly includes a lifting device 100 and a feeding platform 200 installed on the lifting device. The lifting device 100 adopts a screw lifting device, which has a strong load-bearing capacity and is easy to operate. A nut seat 110 is sleeved on a screw rod 120, the screw rod 120 is connected to a driving motor, the nut seat 110 can move up and down along the screw rod 120, the nut seat 110 and the feeding platform 200 are fixedly connected by bolts 111, and the feeding platform 200 is lifted up and down along with the nut seat 110.

[0027] The feeding platform 200 is provided with left and right movable blocks (210, 220) that can be opened and closed; the bottom of the left and right movable blocks (210, 220) are respectively provided with connecting arms 230, and the connecting arms 230 are connected to the feeding platform through shafts 231, and the connecting arms 230 can swing around the shafts 231. A torsion spring is installed on the shaft 231, and the torsion spring on the left side drives the connecting arm on the left side to swing to the left, and the torsion spring on the right side drives the connecting nose on the right side to swing to the right, so that the left and right movable blocks (210, 220) are in an outwardly opened state in a natural state. The feeding platform 200 is provided with movable block limiters 232 to limit the opening range of the two movable blocks.

[0028] Of course, other methods may also be used to drive the left and right movable blocks (210, 220) to open outward, such as common elastic structures such as tension springs and springs that are used to apply an outward force to the movable blocks or the connecting arms.

[0029] An elastic breathable material layer 240 for placing materials (thin paper sheets) is fixedly connected between the left and right movable blocks (210, 220); the elastic breathable material layer 240 can be made of cloth, bamboo fiber and other materials. The left side of the elastic breathable material layer 240 is fixed on the left movable block 210, and the right side of the elastic breathable material layer 240 is fixed on the right movable block 220. In this embodiment, the fixing method is clamping fixing (other conventional fixing methods can also be used) to prevent the elastic breathable material layer 240 from falling off. Since the left and right movable blocks (210, 220) are in an outwardly opened state in a natural state, the elastic breathable material layer 240 connected between the left and right movable blocks (210, 220) is in a taut state, and the breathability is enhanced.

[0030] A hollow adsorbent 250 is provided below the elastic breathable material layer. The hollow adsorbent 250 is used to absorb the material (thin paper sheet) through the elastic breathable material layer 240. The thin paper sheet is firmly adsorbed on the elastic breathable material layer by the hollow adsorbent 250, which effectively prevents the thin paper sheet from moving and reduces the defective product rate. In this embodiment, the hollow adsorbent 250 adopts an adsorption tube structure. Of course, the hollow adsorbent can also adopt an adsorption disc structure. The hollow adsorbent 250 can be arranged on the feeding platform in a telescopic manner in the up and down directions.

[0031] The hollow adsorbent 250 is arranged on the feeding platform 200 through a spring 251, the lower end of the spring is connected to the feeding platform 200, and the upper end is connected to the hollow adsorbent 250. The hollow adsorbent 250 can be extended and retracted in the up and down directions through the spring 251. In a natural state, the upper adsorption port of the hollow adsorbent supports the elastic breathable material layer 240. In this embodiment, the hollow adsorbent 250 is located in the middle of the elastic breathable material layer 240.

[0032] The working principle of this embodiment:

[0033] In the initial state (natural state), the left and right movable blocks (210, 220) are in an outwardly open state, the elastic breathable material layer 240 is in a taut state, and the upper end adsorption port of the hollow adsorption member 250 presses against the elastic breathable material layer 240. The external hollowing device is started, the elastic breathable material layer 240 is adsorbed, and the thin paper sheet is placed on the elastic breathable material layer 240. Since the elastic breathable material layer 240 has good air permeability, the thin paper sheet is stably adsorbed on the feeding platform 200.

[0034] The screw rod 120 is driven by the driving motor to rotate, thereby driving the nut seat 110 and the feeding platform 200 to rise. When the feeding platform 200 rises to the position of the paper roll forming mandrel (another component of the paper roll packaging equipment) along with the lifting device 100, the thin paper sheet, the elastic breathable material layer 240 and the hollow adsorbent 250 are held against the paper roll forming mandrel. As the feeding platform 200 continues to rise, the hollow adsorbent 250 overcomes the spring force and moves downward under the pressure of the paper roll forming mandrel. The middle of the thin paper sheet and the elastic breathable material layer 240 is recessed downward. The left and right movable blocks (210, 220) overcome the spring force and close to the middle under the drive of the elastic breathable material layer 240, bend the thin paper sheet and wrap it on the outer surface of the paper roll forming mandrel. Then start rolling paper. After the material processing is completed, the feeding platform descends, and the hollow adsorbent 250 moves upward and resets under the action of the spring 251. The left and right movable blocks are reset under the elastic force of the torsion spring, and the elastic breathable material layer is tightened and reset, waiting for the next material to be loaded.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. Thin paper sheet adsorption feeding mechanism, characterized in that: The utility model comprises a lifting device and a feeding platform installed on the lifting device, wherein the feeding platform is provided with left and right movable blocks which can be opened toward the middle to form an inverted "eight" shape; an elastic breathable material layer for placing materials is fixedly connected between the left and right movable blocks; a hollow adsorbent for absorbing materials through the elastic breathable material layer is provided between the left and right movable blocks and below the elastic breathable material layer, and the hollow adsorbent can be extended and retracted in the up-down direction on the feeding platform.

2. The thin paper sheet adsorption feeding mechanism according to claim 1, characterized in that: The hollow adsorption member is an adsorption disk or an adsorption tube.

3. The thin paper sheet adsorption feeding mechanism according to claim 1, characterized in that: The hollow adsorbent is arranged on the feeding platform through a first elastic member, and the hollow adsorbent can be extended and retracted in the up and down directions through the first elastic member. In a natural state, the upper adsorption port of the hollow adsorbent supports the elastic breathable material layer.

4. The thin paper sheet adsorption feeding mechanism according to claim 3, characterized in that: The first elastic member is a spring with one end connected to the feeding platform and the other end connected to the hollow adsorption member.

5. The thin paper sheet adsorption feeding mechanism according to claim 1, characterized in that: A connecting arm is respectively provided at the bottom of the left and right movable blocks, and the connecting arm can be connected to the feeding platform in a swingable manner around an axis. A second elastic member for driving the connecting arm to swing outward is provided between the two movable blocks and the feeding platform. In a natural state, the left and right movable blocks are in an outwardly opened state.

6. The thin paper sheet adsorption feeding mechanism according to claim 5, characterized in that: The second elastic member is a torsion spring arranged on the shaft.

7. The thin paper sheet adsorption feeding mechanism according to claim 5, characterized in that: The second elastic member is a tension spring for applying an outward force to the movable block or the connecting arm.

8. The thin paper sheet adsorption feeding mechanism according to claim 1, characterized in that: The feeding platform is provided with movable block limiters to limit the opening range of the two movable blocks.

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