Film winding machine

Abstract

The utility model provides a film winding machine which comprises a rotary table used for bearing objects and driving the objects to rotate. The film clamping mechanism is installed on the rotary table and comprises a first clamping piece, a second clamping piece and a first driving mechanism, and the first driving mechanism is used for driving the first clamping piece and the second clamping piece to be closed or opened; and the film cutting mechanism is used for cutting off the thin film. The film clamping mechanism is arranged on the rotary table, the film clamping mechanism firstly clamps a film before winding, the film wraps a product along with rotation of the rotary table, the end of the film is released after the part to be wrapped, and the rotary table continues to rotate to wind the end of the film inside. And finally, the film is cut off through the film cutting mechanism, the end of the film just falls between the first clamping piece and the second clamping piece, so that the end of the film is clamped again through the film clamping mechanism, manual film winding and manual film cutting are not needed in the whole process, labor is saved, cost is reduced, efficiency is improved, and the automation degree is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of film wrapping machines, in particular to a film wrapping machine. Background Art

[0002] Film wrapping machine, also called pallet baler, stretch film wrapping machine, etc., is a special packaging machine that realizes mechanized film wrapping. Film wrapping of products can not only effectively reduce the volume of products and facilitate transportation, but also prevent damage to products during transportation, and can also play a role in dust, moisture and cleaning. Therefore, using film wrapping machine to wrap products is an important process before product storage or transportation.

[0003] However, before wrapping the film, the existing film wrapping machine first needs to manually wrap the end of the film around the product to be wrapped, and then the bottom of the film wrapping machine starts to rotate to wrap the film. After wrapping, it needs to be manually cut off, which requires additional personnel and increases labor costs. The low wrapping efficiency is not conducive to automation. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a film wrapping machine to solve the problems in the prior art that the film wrapping machine needs to be manually wrapped before wrapping and the film needs to be manually cut after wrapping, resulting in high labor costs, low efficiency and low degree of automation.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a film wrapping machine, comprising:

[0006] A turntable is used to carry objects and drive them to rotate;

[0007] A film clamping mechanism, mounted on the turntable, comprising a first clamping piece, a second clamping piece and a first driving mechanism, wherein the first driving mechanism is used to drive the first clamping piece and the second clamping piece to close or open;

[0008] The film cutting mechanism is used to cut the film.

[0009] Furthermore, the first driving mechanism includes a first power, a first connecting block and a second connecting block, a first rotating shaft is installed on the turntable, the first clamp is fixedly connected to the first rotating shaft, and the movable end of the first power is fixedly connected to the first connecting block; one end of the second connecting block is fixedly connected to the first rotating shaft, and the first connecting block and the second connecting block are hinged.

[0010] Furthermore, it also includes a second driving mechanism, which is used to drive the second clamp; the second driving mechanism includes a second power, a third connecting block and a fourth connecting block, a second rotating shaft is installed on the turntable, the second clamp is fixedly connected to the second rotating shaft, and the movable end of the second power is fixedly connected to the third connecting block; one end of the fourth connecting block is fixedly connected to the second rotating shaft, and the third connecting block and the fourth connecting block are hinged.

[0011] Furthermore, a groove is provided on a side of the first clamp close to the second clamp, and a protrusion is provided on a side of the second clamp close to the first clamp, and the protrusion matches the groove.

[0012] Furthermore, rubber blocks are installed on the first clamp and the second clamp, and the groove and the protrusion are installed on the rubber blocks corresponding to the first clamp and the second clamp respectively.

[0013] Furthermore, it also includes a film cutting mechanism, which includes a first frame, a third power, a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged to the first frame, the movable end of the third power is connected to the first connecting rod, the other end of the first connecting rod is cross-connected to the second connecting rod, and the second connecting rod is installed with a thermal fuse along the length direction of the second connecting rod.

[0014] Furthermore, support blocks are installed at both ends of the second connecting rod, support rods are installed on the support blocks, and limiting grooves are provided on the support rods.

[0015] Furthermore, a pressing block is installed on the second connecting rod, and the sticking module is used to stick the film on the product.

[0016] Furthermore, it also includes a second frame, on which a lifting mechanism is installed, and the film roll mechanism is installed on the lifting mechanism, and the lifting mechanism is used to drive the film roll mechanism to reciprocate up and down.

[0017] Furthermore, an inlet and an outlet are provided on the turntable, and a driving roller is installed on the turntable.

[0018] As described above, the utility model has the following beneficial effects: the application sets a film clamping mechanism on the turntable, and the film clamping mechanism first clamps the film before winding, and then the film clamping mechanism rotates with the turntable, and the first clamp and the second clamp clamp the film in the early stage of rotation, so that the film will wrap the product with the rotation of the turntable, and after the wrapping part, the end of the film is wrapped inside, the first driving mechanism separates the first clamp and the second clamp, and the end of the film is released, and the turntable continues to rotate to wrap the end of the film inside. Finally, the film is cut off by the film cutting mechanism. When the film is cut off, the film clamping mechanism is located below the film, and the cut end of the film just falls between the first clamp and the second clamp, so that the film clamping mechanism clamps the end of the film again, so that the whole process does not need manual film wrapping or manual film cutting, which saves labor and reduces costs, and also improves efficiency and makes the degree of automation higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the film wrapping machine provided by the utility model;

[0020] Figure 2 for Figure 1 A magnified view of middle;

[0021] Figure 3 for Figure 2 Enlarged view of middle B;

[0022] Figure 4 It is a schematic diagram of the structure of the rubber block;

[0023] Figure 5 It is a structural schematic diagram of the film cutting mechanism;

[0024] Figure 6 for Figure 5 Enlarged view of C in the middle.

[0025] Part Number Description

[0026] 10-turntable, 101-import, 102-export, 103-driving roller, 20-film clamping mechanism, 201-first clamping piece, 202-second clamping piece, 203-first power, 204-first connecting block, 205-second connecting block, 206-first rotating shaft, 207-second power, 208-third connecting block, 209-fourth connecting block, 210-second rotating shaft, 211-rubber block, 212-groove, 213-protrusion, 30-film cutting mechanism, 301-first frame, 302-third power, 303-first connecting rod, 304-second connecting rod, 305-hot fuse, 306-support block, 307-support rod, 308-limiting groove, 309-protection block, 310-protection groove, 311-pressing block, 40-second frame, 50-film roll mechanism. DETAILED DESCRIPTION

[0027] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0029] In order to describe the present invention in detail, first, the film wrapping machine of the present invention is specifically described below.

[0030] like Figure 1 As shown, the present application provides a film wrapping machine, including a turntable 10 , a film clamping mechanism 20 , a film cutting mechanism 30 , a lifting mechanism and a film rolling mechanism 50 .

[0031] The turntable 10 is used to carry items and drive the items to rotate. The products are placed on the turntable 10, and the turntable 10 drives the products to rotate together. An inlet 101 and an outlet 102 are arranged on the turntable 10. The inlet 101 and the outlet 102 are arranged relative to each other, so that the products can be put in on one side and out on the other side. A placement area is set inside the turntable 10, and the products are placed in the placement area. The turntable 10 is circular, and a film clamping mechanism 20 is set on one side of the placement area.

[0032] A driving roller 103 is installed in the placement area of ​​the turntable 10, so that when the product goes up and down the turntable 10, it can slide, which is more labor-saving. Of course, a driving mechanism can also be set to drive the driving roller 103 to rotate with power to achieve full automation.

[0033] A rotating power is installed at the bottom of the turntable 10 to drive the turntable 10 to rotate.

[0034] The film clamping mechanism 20 is installed on the side of the placement area of ​​the turntable 10. The film clamping mechanism 20 includes a first clamping piece 201, a second clamping piece 202 and a first driving mechanism. The first driving mechanism is used to drive the first clamping piece 201 and the second clamping piece 202 to close or open.

[0035] The first driving mechanism is connected to the first clamp 201 and is used to control the movement of the first clamp 201. The second clamp 202 can be fixedly set on the turntable 10. The first driving mechanism can be directly a motor, which drives the first clamp 201 to rotate by the forward and reverse rotation of the motor to achieve the closing or opening between the first clamp 201 and the second clamp 202.

[0036] In this embodiment, the first driving mechanism includes a first power 203, a first connecting block 204 and a second connecting block 205. A first rotating shaft 206 is installed on the turntable 10. The first clamp 201 is fixedly connected to the first rotating shaft 206. The movable end of the first power 203 is fixedly connected to the first connecting block 204; one end of the second connecting block 205 is fixedly connected to the first rotating shaft 206, and the first connecting block 204 and the second connecting block 205 are hinged.

[0037] In order to allow the cut film end to be smoothly clamped by the first clamp 201 and the second clamp 202, the second clamp 202 of this embodiment is not fixed, but also adopts a second driving mechanism with the same control structure as the first clamp 201. The second driving mechanism is used to drive the second clamp 202, and the second driving mechanism includes a second power 207, a third connecting block 208 and a fourth connecting block 209. A second rotating shaft 210 is installed on the turntable 10, the second clamp 202 is fixedly connected to the second rotating shaft 210, and the movable end of the second power 207 is fixedly connected to the third connecting block 208; one end of the fourth connecting block 209 is fixedly connected to the second rotating shaft 210, and the third connecting block 208 and the fourth connecting block 209 are hinged.

[0038] A mounting frame is disposed on the turntable 10 , and the first rotating shaft 206 and the second rotating shaft 210 are rotatably disposed on the mounting frame and can rotate relative to the mounting frame.

[0039] Among them, the first power 203 and the second power 207 of this embodiment adopt cylinders, which have a simple structure and are convenient to control. Since the space on both sides of the turntable 10 is limited, the movement structure of the first clamp 201 is realized by cooperating with the first power 203 and the first connecting block 204 and the second connecting block 205, which is also space-saving.

[0040] Further, the first power 203 and the second power 207 are on one side, such as Figure 2 As shown, when clamping the film, the movable end of the first power 203 extends, the first connecting block 204 moves to the left, the second connecting block 205 drives the first rotating shaft 206 to rotate, and the first clamp 201 moves to the right. The movable end of the second power 207 is retracted, the third connecting block 208 moves to the right, the fourth connecting block 209 drives the second rotating shaft 210 to rotate, and the second clamp 202 moves to the left, so that the first clamp 201 and the second clamp 202 cooperate to clamp the film.

[0041] On the contrary, when the film needs to be loosened, the movable end of the first power 203 is retracted, the first clamp 201 rotates to the left, the movable end of the second power 207 is extended, and the second clamp 202 moves to the right, so that the first clamp 201 and the second clamp 202 are separated and the film falls off.

[0042] A worm gear may also be used to drive the first clamping piece 201 and the second clamping piece 202 to close and separate.

[0043] In order to better clamp the film and prevent it from falling off, rubber blocks 211 are installed on the first clamping piece 201 and the second clamping piece 202 to increase the friction force. A groove 212 is provided on the side of the first clamping piece 201 close to the second clamping piece 202, and a protrusion 213 is provided on the side of the second clamping piece 202 close to the first clamping piece 201, and the protrusion 213 matches the groove 212. When the film is clamped, the protrusion 213 clamps the film into the groove 212. Compared with two straight clamping pieces, this method is more reliable and prevents the film from falling off the film clamping mechanism 20 when the turntable 10 is rotating and the film is not yet firmly entangled with the product.

[0044] In order to realize full automation, a film cutting mechanism 30 is also provided, and the film cutting mechanism 30 is used to cut the film. The film can be cut by a blade, and the present embodiment uses a thermal melting method to cut the film.

[0045] A first frame 301 is installed on the outer side of the turntable 10, and a first connecting rod 303 is installed on the first frame 301. One end of the first connecting rod 303 is hinged to the first frame 301, and the other end is connected to the second connecting rod 304. The first connecting rod 303 and the second connecting rod 304 are cross-connected. In this embodiment, the second connecting rod 304 is vertically arranged with the first connecting rod 303. A third power 302 is also installed on the first frame 301. The third power 302 is used to control the rotation of the first connecting rod 303. The third power 302 of this embodiment adopts a cylinder, and the movable end of the third power 302 is hinged to the middle part of the first connecting rod 303.

[0046] Support blocks 306 are installed at both ends of the second connecting rod 304, support blocks 306 are installed on support rods 307, and support rods 307 are provided with limiting grooves 308. Thermal fuses 305 are installed on the second connecting rod 304 along the length direction of the second connecting rod 304. Both ends of the thermal fuses 305 are installed on the second connecting rod 304, and the middle part is supported and restricted by the limiting grooves 308 of the two support rods 307. The support rods 307 are resistant to high temperatures, such as ceramics, and will not be burned by the thermal fuses 305.

[0047] In order to prevent the thermal fuse 305 from scalding the remaining films when not in use or scalding the part of the film that does not need to be cut off when cutting the film, a protection block 309 is set between the two support rods 307, and a protection groove 310 is set at the protection block 309 corresponding to the thermal fuse 305, and the two sides and the rear of the thermal fuse 305 are wrapped by the protection groove 310.

[0048] After the film is cut off, in order to make the end of the film fit better with the product, a pressing block 311 is also installed on the second connecting rod 304. The pressing block 311 only needs to be pressed lightly. The pressing block 311 is arranged vertically with the hot fuse 305. The pressing block 311 is elastic or soft, so as not to scratch the film wrapped on the product.

[0049] In detail, a second frame 40 is installed next to the first frame 301, and a lifting mechanism is installed in the second frame 40. A film roll mechanism 50 loaded with a film roll is installed on the lifting mechanism. The lifting mechanism realizes the up and down reciprocating motion of the film roll mechanism 50. A guide roller is provided in the film roll mechanism 50, which can make the film be pulled out in an orderly manner.

[0050] Working process: the product to be wrapped enters the turntable 10 through the inlet 101. At this time, the first clamp 201 and the second clamp 202 clamp the end of the film. The turntable 10 rotates, and the film clamping mechanism 20 and the product also rotate with the turntable 10. The film clamping mechanism 20 pulls the film out and wraps it around the product during rotation. During the rotation of the turntable 10, the lifting mechanism drives the film rolling mechanism 50 to reciprocate up and down. After the turntable 10 rotates several times, the front part of the film has been wrapped inside. At this time, the first power 203 and the second power 207 act to separate the first clamp 201 and the second clamp 202. The turntable 10 continues to rotate. After the winding is completed, the third power 302 moves the hot fuse 305 to the place where the film needs to be cut, and the hot fuse 305 cuts the film. At this time, the film clamping mechanism 20 is located at the bottom of the film. When the film is cut, the end of the film is located between the first clamp 201 and the second clamp 202. The first power 203 and the second power 207 act, and the first clamp 201 and the second clamp 202 clamp the film, and the film-wrapped product slides out from the outlet 102; such a repetitive movement does not require manual operation during the initial film wrapping and the film cutting after wrapping, saving manpower and improving efficiency.

[0051] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A film wrapping machine, characterized in that: include: A turntable (10), used for carrying objects and driving the objects to rotate; a film clamping mechanism (20) mounted on the turntable (10), the film clamping mechanism (20) comprising a first clamping piece (201), a second clamping piece (202) and a first driving mechanism, the first driving mechanism being used to drive the first clamping piece (201) and the second clamping piece (202) to close or open; A film cutting mechanism (30), wherein the film cutting mechanism (30) is used to cut the film.

2. The film wrapping machine according to claim 1, characterized in that: The first driving mechanism comprises a first power (203), a first connecting block (204) and a second connecting block (205); a first rotating shaft (206) is installed on the turntable (10); the first clamp (201) is fixedly connected to the first rotating shaft (206); the movable end of the first power (203) is fixedly connected to the first connecting block (204); one end of the second connecting block (205) is fixedly connected to the first rotating shaft (206); and the other end of the second connecting block (205) is hinged to the first connecting block (204).

3. The film wrapping machine according to claim 2, characterized in that: The rotary table (10) further comprises a second driving mechanism, wherein the second driving mechanism is used to drive the second clamp (202); the second driving mechanism comprises a second power (207), a third connecting block (208) and a fourth connecting block (209); a second rotating shaft (210) is installed on the rotary table (10); the second clamp (202) is fixedly connected to the second rotating shaft (210); the movable end of the second power (207) is fixedly connected to the third connecting block (208); one end of the fourth connecting block (209) is fixedly connected to the second rotating shaft (210); and the other end of the fourth connecting block (209) is hinged to the third connecting block (208).

4. The film wrapping machine according to any one of claims 1 to 3, characterized in that: A groove (212) is provided on one side of the first clamp (201) close to the second clamp (202), and a protrusion (213) is provided on one side of the second clamp (202) close to the first clamp (201), wherein the protrusion (213) matches the groove (212).

5. The film wrapping machine according to claim 4, characterized in that: The first clamping piece (201) and the second clamping piece (202) are both installed with rubber blocks (211), and the groove (212) and the protrusion (213) are respectively installed on the rubber blocks (211) corresponding to the first clamping piece (201) and the second clamping piece (202).

6. The film wrapping machine according to claim 1, characterized in that: The film cutting mechanism (30) comprises a first frame (301), a third power (302), a first connecting rod (303) and a second connecting rod (304); one end of the first connecting rod (303) is hinged to the first frame (301); the movable end of the third power (302) is connected to the first connecting rod (303); the other end of the first connecting rod (303) is connected to the second connecting rod (304); and a thermal fuse (305) is installed on the second connecting rod (304) along the length direction of the second connecting rod (304).

7. The film wrapping machine according to claim 6, characterized in that: Support blocks (306) are installed at both ends of the second connecting rod (304), a support rod (307) is installed on the support block (306), and a limiting groove (308) is provided on the support rod (307).

8. The film wrapping machine according to claim 6, characterized in that: A pressing block (311) is also installed on the second connecting rod (304), and the pressing block (311) is used to adhere the film to the product.

9. The film wrapping machine according to claim 1, characterized in that: It also comprises a second frame (40), on which a lifting mechanism is installed, and on which a film rolling mechanism (50) is installed, and the lifting mechanism is used to drive the film rolling mechanism (50) to reciprocate up and down.

10. The film wrapping machine according to any one of claims 1-3 or 5-9, characterized in that: The turntable (10) is provided with an inlet (101) and an outlet (102), and a driving roller (103) is installed on the turntable (10).

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