Film covering cutting machine

Abstract

The utility model discloses a film cutting machine which comprises a support, a motor, a transmission mechanism, a first rotating shaft and a cutting mechanism, the motor is connected with the support, the first rotating shaft is in pivot connection with the support, the first rotating shaft is connected with the transmission mechanism, the motor is connected with the transmission mechanism through a synchronous pulley, the cutting mechanism is connected with the transmission mechanism, and the transmission mechanism is connected with the support. The motor rotates to drive the transmission mechanism to rotate, and the transmission mechanism rotates to drive the cutting mechanism to rotate between the position below the first rotating shaft and the position above the first rotating shaft. According to the utility model, the PE film can be cut in a tensioning state, the end face of the PE film is smoother when the PE film is cut, the cut part is prevented from being wrinkled, and the device is of an independent structure, can be used after being arranged between a discharging platform and a winding roller of a PE film production line, can be suitable for discharging platforms of most PE film production lines, and is convenient to use. And a production line does not need to be transformed, so that the applicability is high.

Description

Technical Field

[0001] The utility model relates to a film-covering cutting machine, belonging to the technical field of material discharging and transmission. Background Art

[0002] PE protective film is the most widely used polymer material in the world today. It is mostly used to protect products from pollution, corrosion, scratches during production, processing, transportation, storage and use, and to protect the original smooth and shiny surface, thereby improving product quality and market competitiveness.

[0003] Cutting is an essential procedure in the production of PE film. A Chinese patent (patent number: 202022640176.7) discloses a PE protective film cutting device. When the device cuts the PE film, the PE film is in a relaxed state. Cutting it will cause the end surface of the cut to be uneven and prone to wrinkles. In addition, many factories currently still use manual cutting. The cutting mechanism in the machine is connected to the discharge platform. The discharge platform needs to be replaced to achieve the cutting of the PE film, which incurs high costs. Summary of the invention

[0004] The purpose of the utility model is to solve the above problems existing in the prior art, thereby providing a film cutting machine, which is convenient for cutting PE film and has strong applicability and can be applied to most PE film discharging equipment.

[0005] The technical solution of the utility model is: a film cutting machine, including a bracket, a power device, a transmission mechanism, a first rotating shaft and a cutting mechanism, the power device includes a motor, the motor is connected to the bracket, the first rotating shaft is pivotally connected to the frame, so that the first rotating shaft can rotate along its own axial direction, the first rotating shaft is connected to the transmission mechanism, the motor is connected to the transmission mechanism through a synchronous pulley, the cutting mechanism is connected to the transmission mechanism, the rotation of the motor can drive the transmission mechanism to rotate, and the rotation of the transmission mechanism drives the cutting mechanism to rotate between below the first rotating shaft and above the first rotating shaft.

[0006] Furthermore, in the film cutting machine, connecting shafts are provided on the left and right sides of the first rotating shaft, and two fixing rings are provided on the frame, and the two connecting shafts are respectively inserted into the two fixing rings.

[0007] Further, the film cutting machine, wherein: the transmission mechanism is sleeved on the connecting shaft on at least one side of the first rotating shaft, the transmission mechanism includes a sleeve, a rotating ring, a cutting mechanism fixing plate and a bearing, the sleeve is sleeved on the outer periphery of the connecting shaft, the inner ring of the bearing is sleeved on the outer periphery of the sleeve, the rotating ring is sleeved on the outer ring of the bearing, the cutting mechanism fixing plate is connected to the rotating ring, and the driven wheel of the synchronous pulley is fixedly connected to the rotating ring.

[0008] Furthermore, the film cutting machine, wherein: the cutting mechanism includes a cylinder, a limit groove and a blade, the cylinder is in the limit groove, the blade is connected to the cylinder, and the limit groove and at least one end of the cylinder are connected to the cutting mechanism fixing plate of the transmission mechanism.

[0009] Furthermore, the film cutting machine, wherein: the rotating ring includes an outer ring and an inner ring, one end of the outer ring is connected to one end of the inner ring, the driven wheel of the synchronous pulley is connected to the end face of the outer ring, and the cutting mechanism fixing plate is sleeved on the outer periphery of the inner ring.

[0010] Furthermore, in the film cutting machine, the bearing comprises a first bearing and a second bearing, the first bearing and the second bearing are both sleeved on the outer periphery of the sleeve, the outer ring is sleeved on the outer ring of the first bearing, and the inner ring is sleeved on the outer ring of the second bearing.

[0011] Furthermore, in the film cutting machine, there are two transmission mechanisms, and the shaft sleeves of the two transmission mechanisms are respectively sleeved on the two connecting shafts of the first rotating shaft.

[0012] Furthermore, the film cutting machine, wherein: the power device also includes a reducer and a driving shaft, the motor is connected to the reducer, the driving shaft is connected to the reducer, two synchronous pulleys are provided, the driving wheels of the two synchronous pulleys are both mounted on the driving shaft, and the driven wheels of the two synchronous pulleys are respectively connected to the rotating rings of the two transmission mechanisms.

[0013] Furthermore, in the film cutting machine, a second rotating shaft is disposed on the frame, and the second rotating shaft is arranged parallel to the first rotating shaft.

[0014] The outstanding technical effects of the utility model are mainly reflected in: the utility model can make the PE film cut in a tensioned state, so that the end surface of the PE film is smoother when cut, and wrinkles are prevented from appearing at the cutting position. The utility model has an independent structure and can be used by placing the utility model between the discharge platform and the winding roller of the PE film production line. It can be applied to the discharge platforms of most PE film production lines, and there is no need to modify the production line, so it has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic structural diagram of the utility model from another viewing angle;

[0017] Figure 3 It is a schematic diagram of the connection between the transmission mechanism and the cutting mechanism;

[0018] Figure 4 yes Figure 3The main view of

[0019] Figure 5 It is an exploded diagram of the connection between the transmission mechanism and the rotating shaft;

[0020] Figure 6 This is a schematic diagram of the utility model when the film is rolled up;

[0021] Figure 7 This is a schematic diagram of the utility model when used for laminating and cutting;

[0022] Figure 8 It is a schematic diagram of the rotating ring structure.

[0023] In the figure, the meanings of the reference numerals are as follows: 1—bracket, 21—motor, 22—reducer, 23—driving shaft, 31—driving wheel, 32—driven wheel, 33—transmission belt, 34—tensioning wheel, 4—transmission mechanism, 41—fixed ring, 42—bushing, 43—rotating ring, 431—outer ring, 432—inner ring, 44—cutting mechanism fixing plate, 45—first bearing, 46—second bearing, 5—second rotating shaft, 6—first rotating shaft, 61—connecting shaft, 7—cutting mechanism, 71—cylinder, 72—limiting groove, 73—blade, 8—winding roller, 9—PE film. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in combination with the accompanying drawings.

[0025] like Figures 1 to 5 As shown, the utility model is a film cutting machine including a bracket 1, a power device, a transmission mechanism 4, a first rotating shaft 6 and a cutting mechanism 7. The power device includes a motor 21, the motor 21 is connected to the bracket 1, the first rotating shaft is pivotally connected to the frame 1, so that the first rotating shaft 6 can rotate along its own axial direction, the first rotating shaft 6 is pivotally connected to the transmission mechanism 4, the motor 21 is connected to the transmission mechanism 4 through a synchronous pulley, the cutting mechanism 7 is connected to the transmission mechanism 4, the rotation of the motor 21 can drive the transmission mechanism 4 to rotate, and the rotation of the transmission mechanism 4 drives the cutting mechanism 7 to rotate between below the first rotating shaft 6 and above the first rotating shaft 6.

[0026] Specifically, Figure 2As shown, the power device includes a motor 21, a reducer 22 and a driving shaft 23, wherein the motor 21 is connected to the reducer 22, and the driving shaft 23 is connected to the reducer 22. There are two synchronous pulleys, and there are two transmission mechanisms 4, which are respectively located on the left and right sides of the first rotating shaft 6. The synchronous pulley includes a driving wheel 31, a driven wheel 32 and a transmission belt 33, wherein the driving wheel 31 and the driven wheel 32 are respectively located at the two ends of the transmission belt 33, and the two driving wheels 31 are both sleeved on the driving rotating shaft 23, and the driven wheels of the two synchronous pulleys are respectively connected to the two transmission mechanisms 4. There are connecting shafts 61 on the left and right sides of the first rotating shaft 6, and two fixing rings 41 are provided on the frame 1, and the two connecting shafts 61 are respectively inserted into the two fixing rings 41.

[0027] Preferably, a tension wheel 34 is fixedly connected to the frame 1, and the tension wheel 34 contacts the transmission belt 33 of the synchronous pulley. A second rotating shaft 5 is also provided on the frame 1, and the second rotating shaft 5 is arranged parallel to the first rotating shaft 6.

[0028] like Figures 3 to 5 As shown, specifically, the transmission mechanism 4 includes a sleeve 42, a rotating ring 43, a cutting mechanism fixing plate 44, a first bearing 45 and a second bearing 46, the sleeve 42 is sleeved on the outer periphery of the connecting shaft 61, the inner rings of the first bearing 45 and the second bearing 46 are sleeved on the outer periphery of the sleeve 42, the rotating ring 43 is sleeved on the outer rings of the first bearing 45 and the second bearing 46, the cutting mechanism fixing plate 44 is connected to the rotating ring 43, and the driven wheel 32 of the synchronous pulley is fixedly connected to the rotating ring 43. The motor 21 rotates the driven wheel 32 through the synchronous pulley, thereby rotating the rotating ring 43 and driving the cutting mechanism fixing plate 44 to rotate, and the cutting mechanism 7 is connected to the cutting mechanism fixing plate 44.

[0029] The rotating ring 43 includes an outer ring 431 and an inner ring 432, one end of the outer ring 431 is connected to one end of the inner ring 432, the rotating ring 43 is integrally formed, a mounting hole is provided on the free end face of the outer ring 431, and a mounting hole is also provided on the driven wheel 32, and a bolt is passed through the mounting hole of the driven wheel 32 and the mounting hole of the outer ring 431, so that the driven wheel 32 is connected to the end face of the outer ring 431, and the cutting mechanism fixing plate 44 is sleeved on the outer periphery of the inner ring 432. The outer ring 431 is sleeved on the outer ring of the first bearing 45, and the inner ring 432 is sleeved on the outer ring of the second bearing 46.

[0030] It should be noted that the provision of two transmission mechanisms 4 is only a preferred solution, and only one transmission mechanism 4 may be provided, and the transmission mechanism 4 may be connected to a connecting shaft on one side of the first rotating shaft 6, and correspondingly only one set of synchronous pulleys is required, as long as the cutting mechanism 7 can be rotated. The provision of two bearings, the first bearing 45 and the second bearing 46, is also a preferred solution, and only one bearing may be provided.

[0031] like Figure 3 and Figure 4 As shown, the left and right ends of the cutting mechanism 7 are respectively connected to the cutting mechanism fixing plates 44 of the two transmission mechanisms 4, and the cutting mechanism 7 includes a cylinder 71, a limiting groove 72, and a blade 73. The cylinder 71 is in the limiting groove 72, and the blade 73 is connected to the cylinder. The limiting groove 72 and the left and right ends of the cylinder 71 are respectively connected to the cutting mechanism fixing plates 44 of the two transmission mechanisms 4. Preferably, the cylinder 71 is a rodless cylinder.

[0032] The method of using the utility model is as follows: Figure 6 and Figure 7 As shown, the utility model can be used in conjunction with the discharging mechanism and the winding roller 8 of the PE film production line. In the natural state, the cutting mechanism 7 is below the first rotating shaft 6. The utility model is placed between the discharging mechanism and the winding roller 8 of the PE film production line, and the discharged PE film 9 passes under the second rotating shaft 5 and above the first rotating shaft 6, and then is rolled on the winding roller 8. The winding roller 8 rotates so that the PE film 9 is wound on the winding roller 8. When cutting is required, the motor 21 rotates, and the rotating ring 44 of the transmission mechanism 4 is driven to rotate through the synchronous belt pulley, so that the cutting mechanism fixing plate 44 drives the cutting mechanism 7 to rotate from below the first rotating shaft 6 to above the first rotating shaft 6. Since the cutting mechanism 7 has a certain height, the PE film 9 is in a tensioned state at this time. At this time, the cylinder 71 drives the blade 73 to move to achieve cutting of the PE film 9, and then the motor 21 reverses, the cutting mechanism 7 resets, rotates to below the first rotating shaft 6, and waits for the winding roller to be replaced to cut the PE film 9 after the next winding.

[0033] It can be seen from the above description that the utility model can make the PE film cut in a tensioned state, so that the end surface of the PE film is smoother when cutting, and wrinkles are prevented from appearing at the cutting position. The utility model has an independent structure and can be used by placing the utility model between the discharge platform and the winding roller of the PE film production line. It can be applied to the discharge platforms of most PE film production lines, and there is no need to modify the production line, so it has strong applicability.

[0034] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A film cutting machine, characterized in that: It includes a bracket, a power device, a transmission mechanism, a first rotating shaft and a cutting mechanism. The power device includes a motor, which is connected to the bracket. The first rotating shaft is pivotally connected to the frame so that the first rotating shaft can rotate along its own axial direction. The first rotating shaft is connected to the transmission mechanism. The motor is connected to the transmission mechanism through a synchronous pulley. The cutting mechanism is connected to the transmission mechanism. The rotation of the motor can drive the transmission mechanism to rotate. The rotation of the transmission mechanism drives the cutting mechanism to rotate between below the first rotating shaft and above the first rotating shaft.

2. The film cutting machine according to claim 1, characterized in that: Connecting shafts are arranged on the left and right sides of the first rotating shaft, and two fixing rings are arranged on the frame, and the two connecting shafts are respectively inserted into the two fixing rings.

3. The film cutting machine according to claim 2, characterized in that: The transmission mechanism is sleeved on the connecting shaft on at least one side of the first rotating shaft, and the transmission mechanism includes a sleeve, a rotating ring, a cutting mechanism fixing plate and a bearing. The sleeve is sleeved on the outer circumference of the connecting shaft, the inner ring of the bearing is sleeved on the outer circumference of the sleeve, the rotating ring is sleeved on the outer ring of the bearing, the cutting mechanism fixing plate is connected to the rotating ring, and the driven wheel of the synchronous pulley is fixedly connected to the rotating ring.

4. The film cutting machine according to claim 3, characterized in that: The cutting mechanism comprises a cylinder, a limiting groove and a blade, wherein the cylinder is in the limiting groove, the blade is connected to the cylinder, and the limiting groove and at least one end of the cylinder are connected to a cutting mechanism fixing plate of a transmission mechanism.

5. The film cutting machine according to claim 3, characterized in that: The rotating ring comprises an outer ring and an inner ring, one end of the outer ring is connected to one end of the inner ring, the driven wheel of the synchronous pulley is connected to the end face of the outer ring, and the cutting mechanism fixing plate is sleeved on the outer periphery of the inner ring.

6. The film cutting machine according to claim 5, characterized in that: The bearing comprises a first bearing and a second bearing, wherein the first bearing and the second bearing are both sleeved on the outer periphery of the shaft sleeve, the outer ring is sleeved on the outer ring of the first bearing, and the inner ring is sleeved on the outer ring of the second bearing.

7. The film cutting machine according to claim 3, characterized in that: The transmission mechanisms are provided with two, and the shaft sleeves of the two transmission mechanisms are respectively sleeved on the two connecting shafts of the first rotating shaft.

8. The film cutting machine according to claim 7, characterized in that: The power device also includes a reducer and a driving shaft. The motor is connected to the reducer, and the driving shaft is connected to the reducer. Two synchronous pulleys are provided, and the driving wheels of the two synchronous pulleys are both sleeved on the driving shaft. The driven wheels of the two synchronous pulleys are respectively connected to the rotating rings of the two transmission mechanisms.

9. The film cutting machine according to claim 1, characterized in that: The frame is provided with a second rotating shaft, and the second rotating shaft is arranged parallel to the first rotating shaft.

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