Efficient production device of PET film for food preservation

Abstract

The utility model relates to the technical field of PET (Polyethylene Terephthalate) film production devices, in particular to an efficient PET film production device for food preservation, which comprises a workbench, a cooling mechanism is fixedly arranged above the workbench, and a tension increasing mechanism is fixedly arranged above the workbench. The connecting pipes on the two sides of the cooling support are connected with a cooling water source to enable the cooling barrel to be filled with cooling liquid, so that the cooling barrel has the effect of cooling a film body, and the surface of the cooling barrel is smooth, so that the influence of scratches on the surface of the film body is avoided; a lifting screw rod in the lifting column rotates under the action of a lifting motor at the top end of the lifting column, a lifting rod is mounted on one side of the lifting screw rod, and through a lifting screw hole in one side of the lifting rod, when the lifting screw rod rotates, a tension increasing shaft on one side of the lifting column is driven to ascend and descend; and in the daily working process, the tension of the film body in the production process is effectively changed, the situations such as deformation in the production process are prevented, and the efficient production effect is further achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of PET film production devices, in particular to a high-efficiency production device for PET films used for food preservation. Background Art

[0002] At present, plastic wrap is a kind of plastic packaging product, which is widely used in household life, supermarkets, hotels and restaurants, as well as industrial production of food packaging. Plastic wrap is popular among people for its convenience, economy and beauty.

[0003] The Chinese utility model patent application publication CN 220844713 U discloses an efficient winding device for PET film production. The device installs and fixes the winding tube through a split movable seat, which can facilitate unloading of the winding tube after the PET film is wound. The disassembly and assembly are convenient and labor-saving, thereby improving production efficiency. The end of the PET film is fixed by providing a clamping component, which facilitates the operator to wind the PET film, thereby improving the convenience of the winding device during use. However, the device can only perform a single winding operation. In the daily production process, the film body needs to be cut to a certain width according to demand, and the device does not have the function of simultaneously winding multiple strands. The device does not have other related functions, which makes it inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency production device for PET film for food preservation, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A high-efficiency production device for PET film for food preservation, comprising

[0007] A workbench, a cooling mechanism is fixedly provided above the workbench, a stretching mechanism is fixedly provided above the workbench, a winding mechanism is fixedly provided above the workbench, and a splitting mechanism is fixedly provided above the workbench;

[0008] A lifting column, wherein the bottom end of the lifting column is fixedly arranged above the workbench, a dividing bracket is fixedly arranged above the workbench, a cooling bracket is fixedly arranged above the workbench, and a pillar is fixedly arranged below the workbench.

[0009] Preferably, the cooling mechanism includes a cooling cylinder, and a connecting pipe is fixedly provided on one side of the cooling bracket. A cooling cylinder is fixedly provided on one side of the cooling bracket. Since the temperature of the newly produced PET film is relatively high, the cooling cylinder can be connected to the cooling water source through the connecting pipes of the cooling brackets on both sides under the action of the cooling cylinder to fill the cooling liquid, so that the cooling cylinder can cool the film body. Since the surface of the cooling cylinder is smooth, it will not cause scratches on the surface of the film body.

[0010] Preferably, the expansion mechanism includes a lifting motor and a lifting screw, a lifting slot is provided on one side of the lifting column, a lifting motor is fixed to the top of the lifting column by a screw, a lifting screw is provided on the inner wall of the lifting column through which the lifting motor can move, the top of the lifting screw is fixed to the bottom end of the lifting motor, a bearing base is fixed to the inner wall of the lifting column, and the inner wall of the bearing base is fixed to the bottom end of the lifting screw, and the lifting screw inside the lifting column is rotated under the action of the lifting motor at the top of the lifting column.

[0011] Preferably, a lifting rod is movably provided on one side of the lifting screw, and a lifting screw hole is opened on one side of the lifting rod. The inner wall of the lifting screw hole is movably provided on one side of the lifting screw. A connecting bearing is fixedly provided at one end of the lifting rod, and a tensioning shaft is fixedly provided on the left side of the connecting bearing through a clamping shaft. The lifting rod is installed on one side of the lifting screw, and the lifting screw hole on one side of the lifting rod drives the tensioning shaft on one side of the lifting column to rise and fall when the lifting screw rotates, thereby effectively changing the tension of the membrane during production in daily work, and preventing deformation and the like from occurring during the production process.

[0012] The cam is fixedly provided with a cutting blade and a fixing rod on one side of the cutting bracket, the fixing rod being fixedly provided with a ruler on one side of the fixing rod, the moving block being movably provided with a fixing screw on the upper side of the moving block, an observation slot being opened on one side of the moving block, the inner wall of the observation slot being fixedly provided with a pointer on one side of the pointer, the fixing clamping plate being fixedly provided with a cutting blade on one side of the fixing clamping plate by a screw.

[0013] Preferably, the winding mechanism includes a supporting column, a supporting column is fixedly provided above the workbench, a clamping slot is opened on one side of the supporting column, a rotating plate is movably provided on the inner wall of the clamping slot through a clamping shaft, a winding shaft is movably provided on one side of the rotating plate through a clamping shaft, an extrusion soft strip is fixedly provided on one side of the winding shaft, a winding bracket is fixedly provided above the workbench, an upper rotating shaft is movably provided on one side of the winding bracket through a connecting bearing, a lower rotating shaft is movably provided on one side of the winding bracket through a connecting bearing, one end of the lower rotating shaft is fixedly provided with one end of the upper rotating shaft The upper closing ring is provided with a lower closing ring below the upper closing ring through a movable clamping shaft, and the lower part of the upper closing ring and the upper part of the lower closing ring are movably provided on one end of the winding shaft through bolts. By opening the bolts of the upper closing ring and the lower closing ring on one side of the winding bracket, one end of the winding shaft can be taken out and rotated around the clamping slot on the supporting clamping column at the other end through the clamping shaft, and then the empty reel is put on the winding shaft from one end of the removed winding shaft, and the reel can be fixed by the action of the pressure strip on one side of the winding shaft, and then the winding shaft is put back into the upper closing ring and the lower closing ring and fixed with bolts.

[0014] Preferably, the inner wall of the winding bracket is movably provided with a transmission shaft through a bearing, a transmission gear is fixedly provided on one side of the transmission shaft, a transmission box is fixedly provided on one side of the winding bracket, a transmission motor is fixedly provided on the inner wall of the transmission box by screws, a power shaft is fixedly provided on one side of the transmission motor, a power gear is fixedly provided at one end of the power shaft, one side of the power gear is movably provided on one side of the transmission gear, a rotating gear is fixedly provided on one end of the lower rotating shaft close to the inner wall of the winding bracket, and the lower part of the rotating gear is movably provided above the rotating gear, and the lower rotating shaft is fixedly provided with a transmission shaft. The end is fixedly provided with a lower sprocket, and the upper sprocket is fixedly provided with an upper sprocket at one end of the upper rotating shaft. Chains are movably provided on one side of the lower sprocket and one side of the upper sprocket. By fixing the other end of the cut film body on the reel on the upper and lower reel-up shafts respectively, the power gear on one side drives the transmission gear to rotate under the action of the transmission motor inside the transmission box, and then drives the lower rotating shaft to rotate through the transmission gear and the rotating gear, and then the lower sprocket on one side of the rotating gear and the upper sprocket at one end of the upper rotating shaft are driven by the chain to make the two reel-up shafts rotate simultaneously to achieve the effect of winding up the plastic-keeping film.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. A high-efficiency production device for PET film for food preservation, when in use, the PET film of a certain thickness produced by the extruder can be pulled out, passed through the bottom of the cooling cylinder above the workbench of the device, and one end is passed through the tensioning shaft. Since the temperature of the newly produced PET film is high, it can be connected to the cooling water source through the connecting pipes on both sides under the action of the cooling cylinder to fill the cooling liquid in the cooling cylinder, so that the cooling cylinder can cool the film body. Since the surface of the cooling cylinder is smooth, it will not cause scratches on the surface of the film body. Then, the lifting screw inside the lifting column is rotated under the action of the lifting motor at the top of the lifting column, and a lifting rod is installed on one side of the lifting screw. The lifting screw hole on one side of the lifting rod drives the tensioning shaft on one side of the lifting column to rise and fall when the lifting screw rotates, thereby effectively changing the tension of the film body during production in the daily work process, preventing deformation and the like from occurring during the production process, and further achieving the effect of high-efficiency production.

[0017] 2. This is an efficient production device for PET film for food preservation. After the film body passes through the tensioning shaft, it passes through the middle of the upper roller and the lower roller on one side of the dividing bracket. The moving block on the fixed rod is adjusted according to demand. The distance between multiple moving blocks and the distance between the cutting blades below are adjusted through the observation window on one side, so as to control the effect of cutting the fresh-keeping film width. The film body is then passed through the cutting blade to achieve the cutting effect, and then passed through the middle of the upper roller and the lower roller on the other side. The bolts of the upper closing ring and the lower closing ring on one side of the winding bracket are opened, so that one end of the winding shaft is taken out and can be rotated through the card slot on the supporting card column at the other end through the card shaft, and then the empty reel is taken out from the removed One end of the winding shaft is sleeved on the winding shaft, and the winding shaft can be fixed by the action of the pressure soft strip on one side of the winding shaft, and then the winding shaft is put back into the upper closing ring and the lower closing ring and fixed with bolts. The other end of the cut film body is fixed on the winding shafts on the upper and lower winding shafts respectively, and the power gear on one side drives the transmission gear to rotate under the action of the transmission motor inside the transmission box, and then the lower rotating shaft is driven to rotate by the transmission gear and the rotating gear, and then the two winding shafts are driven by the chain through the lower sprocket on one side of the rotating gear and the upper sprocket at one end of the upper rotating shaft, thereby achieving the effect of cooling the cling film and cutting and winding, as well as the effect of efficient production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 A detailed enlarged structural diagram;

[0020] Figure 3This is a schematic diagram of the internal material structure of the lifting column of the present utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the winding bracket of the present invention;

[0022] In the figure: 100, workbench; 200, lifting column; 300, split bracket; 102, cooling bracket; 101, pillar; 103, connecting pipe; 104, cooling cylinder; 201, lifting slot; 204, lifting motor; 206, lifting screw; 205, bearing base; 207, lifting rod; 208, lifting screw hole; 203, connecting bearing; 202, tensioning shaft; 303, fixing rod; 304, ruler; 305, moving block; 306, fixing screw; 307, observation slot; 308, pointer; 309, fixing plate; 31 0. Cutting blade; 301. Upper roller; 302. Lower roller; 400. Support column; 401. Card slot; 402. Turn plate; 405. Rewinding shaft; 406. Extruded soft strip; 408. Rewinding bracket; 418. Upper rotating shaft; 414. Lower rotating shaft; 403. Upper closing ring; 404. Lower closing ring; 413. Drive shaft; 412. Drive gear; 407. Drive box; 409. Drive motor; 410. Power shaft; 411. Power gear; 415. Rotating gear; 416. Lower sprocket; 419. Upper sprocket; 417. Chain. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1-4 As shown, the utility model provides a technical solution:

[0025] A high-efficiency production device for PET film for food preservation, comprising

[0026] A workbench 100, a cooling mechanism is fixedly provided above the workbench 100, a stretching mechanism is fixedly provided above the workbench 100, a winding mechanism is fixedly provided above the workbench 100, and a splitting mechanism is fixedly provided above the workbench 100;

[0027] The lifting column 200 has its bottom end fixedly disposed above the workbench 100 . A split bracket 300 is fixedly disposed above the workbench 100 . A cooling bracket 102 is fixedly disposed above the workbench 100 . A support column 101 is fixedly disposed below the workbench 100 .

[0028] In the embodiment, preferably, the cooling mechanism includes a cooling cylinder 104 , a connecting pipe 103 is fixedly provided on one side of the cooling bracket 102 , and a cooling cylinder 104 is fixedly provided on one side of the cooling bracket 102 .

[0029] Through the above scheme, since the temperature of the newly produced PET film is relatively high, the cooling water source can be connected to the cooling cylinder 104 through the connecting pipe 103 of the cooling brackets 102 on both sides to fill the cooling cylinder 104 with coolant, so that the cooling cylinder 104 can cool the film body. Since the surface of the cooling cylinder 104 is smooth, it will not cause scratches on the surface of the film body.

[0030] In the embodiment, preferably, the expansion mechanism includes a lifting motor 204 and a lifting screw 206. A lifting slot 201 is provided on one side of the lifting column 200. The lifting motor 204 is fixed to the top of the lifting column 200 by screws. The inner wall of the lifting column 200 is movably provided with a lifting screw 206 through the lifting motor 204. The top of the lifting screw 206 is fixed to the bottom end of the lifting motor 204. The inner wall of the lifting column 200 is fixed with a bearing base 205, and the inner wall of the bearing base 205 is fixed to the bottom end of the lifting screw 206.

[0031] According to the above solution, the lifting screw 206 inside the lifting column 200 is rotated by the action of the lifting motor 204 at the top of the lifting column 200 .

[0032] In the embodiment, preferably, a lifting rod 207 is movably provided on one side of the lifting screw 206, a lifting screw hole 208 is opened on one side of the lifting rod 207, the inner wall of the lifting screw hole 208 is movably provided on one side of the lifting screw 206, and a connecting bearing 203 is fixedly provided at one end of the lifting rod 207, and a tensioning shaft 202 is fixedly provided on the left side of the connecting bearing 203 through a clamping shaft.

[0033] Through the above scheme, a lifting rod 207 is installed on one side of the lifting screw 206. Through the lifting screw hole 208 on one side of the lifting rod 207, the lifting screw 206 rotates to drive the tensioning shaft 202 on one side of the lifting column 200 to rise and fall, thereby effectively changing the tension of the membrane during production in daily work, and preventing deformation and the like from occurring during the production process.

[0034] In the embodiment, preferably, the splitting mechanism includes a cutting blade 310 and a fixed rod 303, a fixed rod 303 is fixedly provided on one side of the splitting bracket 300, a scale 304 is fixedly provided on one side of the fixed rod 303, a moving block 305 is movably provided on one side of the fixed rod 303, a fixed screw 306 is movably provided above the moving block 305, an observation slot 307 is provided on one side of the moving block 305, a pointer 308 is fixedly provided on the inner wall of the observation slot 307, one side of the pointer 308 is movably provided on one side of the scale 304, a fixed clamping plate 309 is fixedly provided below the moving block 305, a cutting blade 310 is fixed on one side of the fixed clamping plate 309 by screws, an upper roller 301 is movably provided on one side of the splitting bracket 300 through the connecting bearing 203, and a lower roller 302 is movably provided on one side of the splitting bracket 300 through the connecting bearing 203.

[0035] Through the above scheme, by passing through the middle of the upper roller 301 and the lower roller 302 on one side of the dividing bracket 300, the moving block 305 on the fixed rod 303 is adjusted according to needs, and the distance between multiple moving blocks 305 and the distance of the cutting blade 310 below are adjusted through the observation window on one side, so as to control the effect of cutting the width of the cling film, and then the film body is passed through the cutting blade 310 to achieve the cutting effect, and then passed through the middle of the upper roller 301 and the lower roller 302 on the other side.

[0036] In the embodiment, preferably, the winding mechanism includes a supporting column 400, a supporting column 400 is fixedly arranged above the workbench 100, a card slot 401 is opened on one side of the supporting column 400, a rotating plate 402 is movably provided on the inner wall of the slot 401 through a card shaft, a winding shaft 405 is movably provided on one side of the rotating plate 402 through a card shaft, an extrusion soft strip 406 is fixedly provided on one side of the winding shaft 405, a winding bracket 408 is fixedly provided above the workbench 100, an upper rotating shaft 418 is movably provided on one side of the winding bracket 408 through a connecting bearing 203, a lower rotating shaft 414 is movably provided on one end of the winding bracket 408 through a connecting bearing 203, an upper closing ring 403 is fixedly provided on one end of the lower rotating shaft 414 and one end of the upper rotating shaft 418, a lower closing ring 404 is movably provided below the upper closing ring 403 through a card shaft, and a bolt is movably provided below the upper closing ring 403 and above the lower closing ring 404 at one end of the winding shaft 405.

[0037] Through the above scheme, the bolts of the upper closing ring 403 and the lower closing ring 404 on one side of the winding bracket 408 are opened, so that one end of the winding shaft 405 can be taken out and rotated around the slot 401 on the supporting clamping column 400 at the other end through the clamping shaft, and then the empty reel is put on the winding shaft 405 from one end of the removed winding shaft 405, and the reel can be fixed by the action of the pressure strip on one side of the winding shaft 405, and then the winding shaft 405 is put back into the upper closing ring 403 and the lower closing ring 404 and fixed with bolts.

[0038] In the embodiment, preferably, a transmission shaft 413 is movably provided on the inner wall of the winding bracket 408 through a bearing, a transmission gear 412 is fixedly provided on one side of the transmission shaft 413, a transmission box 407 is fixedly provided on one side of the winding bracket 408, a transmission motor 409 is fixedly provided on the inner wall of the transmission box 407 through screws, a power shaft 410 is fixedly provided on one side of the transmission motor 409, a power gear 411 is fixedly provided at one end of the power shaft 410, one side of the power gear 411 is movably provided on one side of the transmission gear 412, a rotating gear 415 is fixedly provided on one end of the lower rotating shaft 414 close to the inner wall of the winding bracket 408, the rotating gear 415 is movably provided above the rotating gear, a lower sprocket 416 is fixedly provided on one end of the lower rotating shaft 414, an upper sprocket 419 is fixedly provided on one end of the upper rotating shaft 418, and a chain 417 is movably provided on one side of the lower sprocket 416 and one side of the upper sprocket 419.

[0039] Through the above scheme, the other end of the cut film body is fixed on the reel on the upper and lower reeling shafts 405 respectively, and the power gear 411 on one side drives the transmission gear 412 to rotate under the action of the transmission motor 409 inside the transmission box 407, and then the lower rotating shaft 414 is driven to rotate by the transmission gear 412 and the rotating gear 415, and then the lower chain tooth 416 on one side of the rotating gear 415 and the upper chain tooth 419 at one end of the upper rotating shaft 418 are driven by the chain 417 to make the two reeling shafts 405 rotate simultaneously to achieve the effect of rolling up the plastic wrap.

[0040] When the efficient production device of PET film for food preservation of this embodiment is in use, the PET film of a certain thickness produced by the extruder can be pulled out from the bottom of the cooling cylinder 104 above the working table 100 of the device and passed through one end through the tensioning shaft 202. Since the temperature of the newly produced PET film is relatively high, it can be connected to the cooling water source through the connecting pipes 103 on both sides under the action of the cooling cylinder 104 to fill the cooling liquid in the cooling cylinder 104, so that the cooling cylinder 104 can cool the film body. The surface of the cooling cylinder 104 is smooth, so it will not cause scratches on the surface of the membrane. The lifting screw 206 inside the lifting column 200 is rotated by the lifting motor 204 at the top of the lifting column 200. A lifting rod 207 is installed on one side of the lifting screw 206. The lifting screw hole 208 on the side of the lifting rod 207 allows the lifting screw 206 to rotate and drive the tensioning shaft 202 on one side of the lifting column 200 to rise and fall. In the daily work process, the tension of the membrane during production is effectively changed, deformation and the like are prevented during the production process, and the effect of efficient production is further achieved.

[0041] The film body is passed through the tensioning shaft 202, and then passed through the middle of the upper roller 301 and the lower roller 302 on one side of the dividing bracket 300, and the moving block 305 on the fixed rod 303 is adjusted according to the demand, and the distance between the multiple moving blocks 305 and the distance between the cutting blade 310 below is adjusted through the observation window on one side, so as to control the effect of cutting the fresh-keeping film width, and then the film body is passed through the cutting blade 310 to achieve the cutting effect, and then passed through the middle of the upper roller 301 and the lower roller 302 on the other side, and then the bolts of the upper closing ring 403 and the lower closing ring 404 on one side of the winding bracket 408 are opened, so that one end of the winding shaft 405 is taken out and can be rotated around the slot 401 on the supporting column 400 at the other end through the shaft, and then the empty reel is put on the winding shaft 405 from one end of the removed winding shaft 5, the reel can be fixed by the pressure soft strip on one side of the reel 405, and then the reel 405 can be put back into the upper closing ring 403 and the lower closing ring 404 and fixed with bolts, and then the other end of the cut film body is fixed to the reels on the upper and lower reel 405 respectively, and under the action of the transmission motor 409 inside the transmission box 407, the power gear 411 on one side drives the transmission gear 412 to rotate, and then the lower rotating shaft 414 is driven to rotate by the transmission gear 412 and the rotating gear 415, and then the lower sprocket 416 on one side of the rotating gear 415 and the upper sprocket 419 at one end of the upper rotating shaft 418 are driven by the chain 417 to make the two reel 405 rotate at the same time, thereby achieving the effect of cooling the fresh-keeping film and cutting and reeling, as well as the effect of efficient production.

[0042] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly efficient production device for PET film for food preservation, characterized in that: include A workbench (100), wherein a cooling mechanism is fixedly arranged above the workbench (100), a tensioning mechanism is fixedly arranged above the workbench (100), a winding mechanism is fixedly arranged above the workbench (100), and a splitting mechanism is fixedly arranged above the workbench (100); A lifting column (200), wherein the bottom end of the lifting column (200) is fixedly arranged above a workbench (100), a splitting bracket (300) is fixedly arranged above the workbench (100), a cooling bracket (102) is fixedly arranged above the workbench (100), and a support column (101) is fixedly arranged below the workbench (100).

2. The device for efficiently producing PET film for food preservation according to claim 1, characterized in that: The cooling mechanism comprises a cooling cylinder (104), a connecting pipe (103) is fixedly arranged on one side of the cooling bracket (102), and a cooling cylinder (104) is fixedly arranged on one side of the cooling bracket (102).

3. The device for efficiently producing PET film for food preservation according to claim 1, characterized in that: The expansion mechanism comprises a lifting motor (204) and a lifting screw (206); a lifting slot (201) is provided on one side of the lifting column (200); a lifting motor (204) is fixedly arranged at the top of the lifting column (200) by means of screws; a lifting screw (206) is movably arranged on the inner wall of the lifting column (200) via the lifting motor (204); the top of the lifting screw (206) is fixedly arranged at the bottom of the lifting motor (204); a bearing base (205) is fixedly arranged on the inner wall of the lifting column (200); and the inner wall of the bearing base (205) is fixedly arranged at the bottom of the lifting screw (206).

4. The device for efficiently producing PET film for food preservation according to claim 3, characterized in that: A lifting rod (207) is movably arranged on one side of the lifting screw (206), a lifting screw hole (208) is opened on one side of the lifting rod (207), the inner wall of the lifting screw hole (208) is movably arranged on one side of the lifting screw (206), a connecting bearing (203) is fixedly arranged on one end of the lifting rod (207), and a tensioning shaft (202) is fixedly arranged on the left side of the connecting bearing (203) through a clamping shaft.

5. The device for efficiently producing PET film for food preservation according to claim 1, characterized in that: The segmentation mechanism comprises a cutting blade (310) and a fixed rod (303); the fixed rod (303) is fixedly arranged on one side of the segmentation bracket (300); a scale (304) is fixedly arranged on one side of the fixed rod (303); a moving block (305) is movably arranged on one side of the fixed rod (303); a fixing screw (306) is movably arranged above the moving block (305); an observation slot (307) is opened on one side of the moving block (305); and the inner wall of the observation slot (307) is fixedly A pointer (308) is provided, one side of the pointer (308) is movably provided on one side of the ruler (304), a fixed clamping plate (309) is fixedly provided below the moving block (305), a cutting blade (310) is fixedly provided on one side of the fixed clamping plate (309) by means of screws, an upper roller (301) is movably provided on one side of the segmentation bracket (300) by means of a connecting bearing (203), and a lower roller (302) is movably provided on one side of the segmentation bracket (300) by means of a connecting bearing (203).

6. The device for efficiently producing PET film for food preservation according to claim 1, characterized in that: The winding mechanism comprises a supporting clamping column (400), a supporting clamping column (400) is fixedly arranged above the workbench (100), a clamping slot (401) is provided on one side of the supporting clamping column (400), a rotating plate (402) is movably arranged on the inner wall of the clamping slot (401) via a clamping shaft, a winding shaft (405) is movably arranged on one side of the rotating plate (402) via a clamping shaft, an extrusion soft strip (406) is fixedly arranged on one side of the winding shaft (405), a winding bracket (408) is fixedly arranged above the workbench (100), and the An upper rotating shaft (418) is movably provided on one side of the winding bracket (408) through a connecting bearing (203), and a lower rotating shaft (414) is movably provided on one side of the winding bracket (408) through a connecting bearing (203). An upper closing ring (403) is fixedly provided at one end of the lower rotating shaft (414) and one end of the upper rotating shaft (418), and a lower closing ring (404) is movably provided below the upper closing ring (403) through a clamping shaft. The lower part of the upper closing ring (403) and the upper part of the lower closing ring (404) are movably provided at one end of the winding shaft (405) through bolts.

7. The device for efficiently producing PET film for food preservation according to claim 6, characterized in that: The inner wall of the winding bracket (408) is movably provided with a transmission shaft (413) via a bearing, a transmission gear (412) is fixedly provided on one side of the transmission shaft (413), a transmission box (407) is fixedly provided on one side of the winding bracket (408), a transmission motor (409) is fixedly provided on the inner wall of the transmission box (407) via screws, a power shaft (410) is fixedly provided on one side of the transmission motor (409), a power gear (411) is fixedly provided on one end of the power shaft (410), and the power gear (411) is fixedly provided on one end of the power shaft (410). One side of the lower rotating shaft (411) is movably arranged on one side of the transmission gear (412), one end of the lower rotating shaft (414) close to the inner wall of the winding bracket (408) is fixedly arranged with a rotating gear (415), the lower part of the rotating gear (415) is movably arranged above the rotating gear, one end of the lower rotating shaft (414) is fixedly arranged with a lower chain tooth (416), one end of the upper rotating shaft (418) is fixedly arranged with an upper chain tooth (419), and a chain (417) is movably arranged on one side of the lower chain tooth (416) and one side of the upper chain tooth (419).

Images