Automatic paper winding device for double-layer paillette cup production

Abstract

The utility model relates to an automatic paper winding device for producing a double-layer paillette cup. The device comprises a paper feeding assembly, a cutting assembly and a winding assembly. The paper feeding assembly comprises two driving rollers which abut against each other, a paper roll positioning roller and a guide plate. The cutting assembly comprises a linear reciprocating mechanism, a movable tool apron and a cutting knife fixed to the movable tool apron. The winding assembly comprises a mounting base, a rotary driving element, a rotating shaft, a negative pressure barrel, a restraining barrel and a guide rod, an annular gap is formed between the negative pressure barrel and the restraining barrel, the guide rod is slidably connected with the mounting base, a cup body positioning part is arranged at the bottom of the restraining barrel, and a strip-shaped opening is formed in the side wall of the restraining barrel and corresponds to the position right opposite to the guide plate; a plurality of negative pressure holes are formed in the outer wall of the negative pressure barrel, and a negative pressure connector is arranged on the negative pressure barrel. According to the paper tape winding device, the functions of automatically cutting off the paper tape and automatically winding the paper tape can be achieved, roll paper can be efficiently assisted to be transferred into the outer cup body, and the speed of winding and installing the paper tape into the outer cup body can be effectively accelerated.

Description

Technical Field

[0001] The utility model relates to plastic cup production equipment, in particular to an automatic paper rolling device for producing double-layer sequin cups. Background Art

[0002] Plastic cup is a common water container. Compared with metal cup and ceramic cup, plastic cup has the advantages of light texture, drop resistance, high production efficiency and low production cost. In order to improve the aesthetics of plastic cup, there is a double-layer sequin cup, which includes a transparent outer cup body, an inner cup body and a paper tape. The paper tape is made of paper material or plastic material. Generally, beautiful patterns are printed on the paper tape. The outer cup body and the inner cup body are mutually sleeved. The paper tape is sandwiched in the interlayer between the two cup bodies and arranged around a circle. This type of cup has good aesthetics, but its production process is much more complicated than that of ordinary plastic cups. The outer cup body and the inner cup body are both produced by injection molding equipment, and then assembled manually, and the paper tape is assembled together during the assembly process. In the manual assembly process, the most time-consuming process is to put the paper tape into the outer cup body in a wound state, and it is easy to put the paper tape in the wrong position. Therefore, in order to improve the production efficiency and yield rate of double-layer sequin cups, it is urgent to develop a device that can efficiently complete the paper tape winding and put it into the outer cup body. Summary of the invention

[0003] The utility model provides an automatic paper rolling device for producing double-layer sequined cups, which solves the problems in the prior art of low efficiency and arbitrary deviation of the installation position when the paper tape in the double-layer sequined cups is manually wound and installed.

[0004] The above technical problems of the utility model are mainly solved by the following technical solutions: an automatic paper rolling device for producing double-layer sequin cups, characterized in that it includes a paper feeding assembly, a cutting assembly and a winding assembly; the paper feeding assembly includes two mutually abutting active rollers, a paper roll positioning roller and a guide plate; the cutting assembly includes a linear reciprocating mechanism, a movable knife seat and a cutting knife fixed on the movable knife seat, and the cutting path of the cutting knife is located at the end of the guide plate; the winding assembly includes a mounting seat, a rotating driving element fixed on the mounting seat, and a transmission element connected to the rotating driving element A connected rotating shaft, a negative pressure barrel fixed to the end of the rotating shaft, a constraint barrel sleeved on the outside of the negative pressure barrel and a guide rod fixed on the constraint barrel, an annular gap is formed between the negative pressure barrel and the constraint barrel, the guide rod is slidably connected to the mounting seat, the guide rod and the rotating shaft are both vertically arranged, a cup body positioning portion coaxial with the bottom of the constraint barrel is provided, a strip opening is opened on the side wall of the constraint barrel at a position opposite to the guide plate, a plurality of negative pressure holes are provided on the outer wall of the negative pressure barrel, a negative pressure interface is provided on the negative pressure barrel, and the negative pressure interface is connected to the negative pressure equipment through a hose.

[0005] The working principle of the utility model is as follows: a paper roll as a raw material of a paper tape is sleeved on a paper roll positioning roller, and when the paper rolling operation is performed, the paper feeding assembly starts to operate, and two active rollers clamp the paper roll and feed the paper to the guide plate, and the paper roll moves along the guide plate until the front end of the paper roll extends into the annular gap along the strip-shaped opening, at which time the paper roll will bend along the annular gap until the paper feeding length of the paper feeding assembly reaches a preset length, at which time the two active rollers stop, the cutting assembly starts to work, the linear reciprocating mechanism drives the moving knife seat to move back and forth, the cutting knife completes the cutting operation of the paper roll, and then the winding assembly starts to act, and the negative pressure barrel generates negative pressure At this time, the paper tape in the annular gap will be adsorbed on the negative pressure barrel, and then the rotating driving element drives the negative pressure barrel to rotate a certain angle through the rotating shaft, so that the paper tape outside the annular gap will also be rolled in, and then the opening of the outer cup body can be placed against the cup body positioning part through automated equipment or manual methods, and then the constraint barrel can be pushed to move upward, so that the paper roll outside the negative pressure barrel will gradually transfer from the constraint barrel to the outer cup body, and then the negative pressure barrel returns to normal pressure, the rotating driving element is reset in the opposite direction, and the paper roll tends to return to its original shape and begins to rebound until it fits with the inner wall of the outer cup body, and then the constraint barrel is reset and the outer cup body is taken out.

[0006] Furthermore, the cup body positioning portion includes an annular abutment plate and an annular positioning plate arranged outside the annular abutment plate, and a through hole having the same size as the inner cavity of the constraint barrel is formed inside the annular abutment plate. This design is to ensure that the paper roll can smoothly slide from the constraint barrel through the through hole, and the inner wall size of the outer cup body is also slightly larger than the through hole, ensuring that the paper roll can smoothly slide into the outer cup body.

[0007] Furthermore, a spring is sleeved on the guide rod, and the two ends of the spring are respectively in contact with the mounting seat and the constraint barrel, and the top end of the guide rod is also provided with a limit block that can form a limit with the mounting seat. In this way, the constraint barrel has the effect of self-reset.

[0008] Therefore, compared with the prior art, the utility model has the following characteristics: 1. The utility model can realize the function of automatically cutting off the paper tape and automatically winding the paper tape, and can also efficiently assist in transferring the roll of paper into the outer cup body, which can effectively speed up the operation process of winding the paper tape into the outer cup body and ensure a good yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Attached Figure 1 It is a bottom view of the utility model;

[0010] Attached Figure 2 is a side view of the guide plate;

[0011] Attached Figure 3 It is a structural schematic diagram of the utility model from another perspective;

[0012] Attached Figure 4 It is a structural diagram of the winding assembly;

[0013] Attached Figure 5 is the cross section of the negative pressure barrel and the constraint barrel. DETAILED DESCRIPTION

[0014] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0016] Example 1: See Figure 1 , Figure 2 , Figure 3 and Figure 5 An automatic paper rolling device for producing double-layer sequin cups, comprising a paper feeding assembly 100, a cutting assembly 200 and a winding assembly 300; the paper feeding assembly comprises two mutually abutting active rollers 110, a guide roller 120, a paper roll positioning roller 130 and a guide plate 140, and a guide groove 141 is formed on the guide plate; the cutting assembly comprises a linear reciprocating mechanism 210, a movable knife seat 220 and a cutting knife 230 fixed on the movable knife seat, the linear reciprocating mechanism is specifically a servo slide rail, and the cutting path of the cutting knife is located at the end of the guide plate; the winding assembly comprises a mounting seat 310, a rotating driving element 320 fixed on the mounting seat, and a rotating shaft connected to the rotating driving element by transmission 330, a negative pressure barrel 340 fixed to the end of the rotating shaft, a constraint barrel 350 sleeved on the outside of the negative pressure barrel and a guide rod 360 fixed on the constraint barrel, the rotating driving element is a rotating cylinder, and its rotation angle is between 30° and 90°. An annular gap 370 is formed between the negative pressure barrel and the constraint barrel, the guide rod is slidably connected to the mounting seat, the guide rod and the rotating shaft are both vertically arranged, a cup body positioning portion 380 coaxial with the constraint barrel is provided at the bottom, a strip opening 351 is opened on the side wall of the constraint barrel at a position directly opposite to the guide plate, a plurality of negative pressure holes 341 are provided on the outer wall of the negative pressure barrel, a negative pressure interface 342 is provided on the negative pressure barrel, and the negative pressure interface is connected to the negative pressure equipment through a hose.

[0017] The working principle of this embodiment is as follows: the paper roll as the raw material of the paper tape is sleeved on the paper roll positioning roller. When the paper rolling operation is performed, the paper feeding assembly starts to operate, and the two active rollers clamp the paper roll and feed the paper to the guide plate. The paper roll moves along the guide plate until the front end of the paper roll extends into the annular gap along the strip opening. At this time, the paper roll will bend along the annular gap until the paper feeding length of the paper feeding assembly reaches a preset length. At this time, the two active rollers stop, and the cutting assembly starts to work. The linear reciprocating mechanism drives the moving knife seat to move back and forth, and the cutting knife completes the truncation of the paper roll. Then the winding assembly starts to move, and the negative pressure barrel generates negative pressure. At this time, the paper tape in the annular gap will be adsorbed on the negative pressure barrel, and then the rotating driving element drives the negative pressure barrel to rotate a certain angle through the rotating shaft, so that the paper tape outside the annular gap will also be rolled in, and then the opening of the outer cup body can be placed against the cup body positioning part through automated equipment or manual methods, and then the constraint barrel can be pushed to move upward, so that the paper roll outside the negative pressure barrel will gradually transfer from the constraint barrel to the outer cup body, and then the negative pressure barrel returns to normal pressure, the rotating driving element is reset in the opposite direction, and the paper roll will tend to return to its original shape and begin to rebound until it fits with the inner wall of the outer cup body, and then the constraint barrel is reset and the outer cup body is taken out.

[0018] The maximum single rotation angle of the negative pressure barrel in this embodiment does not exceed 90°, and the rotation mode is alternating forward and reverse reciprocating, so the hose connecting the negative pressure barrel and the negative pressure equipment will not produce a large rotation, which will not have a significant impact on the life of the hose.

[0019] See Figure 4 The cup body positioning part includes an annular abutment plate 381 and an annular positioning plate 382 arranged outside the annular abutment plate. A through hole 383 having the same size as the inner cavity of the constraint barrel is formed inside the annular abutment plate. This design is to allow the paper roll to slide smoothly from the constraint barrel through the through hole, and the inner wall size of the outer cup body is also slightly larger than the through hole, ensuring that the paper roll can slide smoothly into the outer cup body.

[0020] See Figure 3 The guide rod is sleeved with a spring 361, and the two ends of the spring are respectively in contact with the mounting seat and the constraint barrel, and the top of the guide rod is also provided with a limit block 362 that can form a limit with the mounting seat. In this way, the constraint barrel has the effect of self-reset.

[0021] See Figure 5 The strip-shaped opening of the restraining barrel is also provided with an extension piece 352 extending toward one side of the guide plate.

[0022] It is obvious to those skilled in the art that the utility model can be changed in many ways, and such changes are not considered to be out of the scope of the utility model. All such modifications obvious to those skilled in the art will be included in the scope of the claims.

Claims

1. An automatic paper rolling device for producing double-layer sequined cups, characterized in that: The invention comprises a paper feeding assembly, a cutting assembly and a winding assembly; the paper feeding assembly comprises two active rollers abutting against each other, a paper roll positioning roller and a guide plate; the cutting assembly comprises a linear reciprocating mechanism, a movable knife seat and a cutting knife fixed on the movable knife seat, and the cutting path of the cutting knife is located at the end of the guide plate; the winding assembly comprises a mounting seat, a rotating driving element fixed on the mounting seat, a rotating shaft connected to the rotating driving element by transmission, a negative pressure barrel fixed to the end of the rotating shaft, a restraining barrel sleeved on the outside of the negative pressure barrel and a guide rod fixed on the restraining barrel, an annular gap is formed between the negative pressure barrel and the restraining barrel, the guide rod is slidably connected to the mounting seat, the guide rod and the rotating shaft are both vertically arranged, the bottom of the restraining barrel is provided with a cup body positioning portion coaxial therewith, a strip opening is opened on the side wall of the restraining barrel corresponding to the position directly opposite to the guide plate, a plurality of negative pressure holes are provided on the outer wall of the negative pressure barrel, and a negative pressure interface is provided on the negative pressure barrel.

2. The automatic paper rolling device for producing double-layer sequined cups according to claim 1 is characterized in that: The cup body positioning portion comprises an annular abutment plate and an annular positioning plate arranged outside the annular abutment plate, and a through hole having the same size as the inner cavity of the restraining barrel is formed inside the annular abutment plate.

3. The automatic paper rolling device for producing double-layer sequined cups according to claim 1 or 2, characterized in that: A spring is sleeved on the guide rod, and two ends of the spring are respectively in contact with the mounting seat and the constraint barrel. A limit block which can form a limit with the mounting seat is also provided at the top end of the guide rod.

4. The automatic paper rolling device for producing double-layer sequined cups according to claim 3 is characterized in that: The strip-shaped opening of the restraining barrel is also provided with an extension piece extending toward one side of the guide plate.

5. The automatic paper rolling device for producing double-layer sequined cups according to claim 1 is characterized in that: The rotary drive element is a rotary cylinder, and its rotation angle is between 30° and 90°.

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