阅读说明：本技术 一种保鲜膜及其制造工艺 (Preservative film and manufacturing process thereof ) 是由 王先建 于 2021-07-12 设计创作，主要内容包括：本发明涉及保鲜膜加工技术领域,更具体的说是一种保鲜膜及其制造工艺,一种保鲜膜制造工艺,该工艺包括以下步骤：步骤一：对保鲜膜进行切割,在切割结束后清理掉碎屑；步骤二：将保鲜膜的两端对折,在对折后进行抹平折痕；步骤三：在对折后的保鲜膜上折出便于使用的折角；步骤四；将折角抹平的同时加工出便于撕开的孔,一种保鲜膜,一种保鲜膜上设有两个半圆形的翼,将两个半圆形的翼对折到保鲜膜上,保鲜膜上两个半圆形的翼上均设有折角,本装置加工出的保鲜膜能够更加充分的对圆形器皿进行覆盖,能加工出带有两翼的保鲜膜,在加工过程能及时清理切割保鲜膜产生的碎屑。(The invention relates to the technical field of preservative film processing, in particular to a preservative film and a manufacturing process thereof, wherein the manufacturing process of the preservative film comprises the following steps: the method comprises the following steps: cutting the preservative film, and cleaning up scraps after the cutting is finished; step two: folding two ends of the preservative film in half, and flattening creases after folding in half; step three: folding a convenient folded angle on the folded preservative film; step four; the utility model provides a wrap film, a wrap film is equipped with two semicircular wings on the wrap film, with two semicircular wings fifty percent discount to the wrap film on, all be equipped with the dog-ear on two semicircular wings on the wrap film, the wrap film that this device processed can be more abundant cover circular household utensils, can process out the wrap film that has two wings, can in time clear up the piece that the cutting wrap film produced at the course of working.)

1. A process for manufacturing a preservative film is characterized in that: the process comprises the following steps:

the method comprises the following steps: cutting the preservative film, and cleaning up scraps after the cutting is finished;

step two: folding two ends of the preservative film in half, and flattening creases after folding in half;

step three: folding a convenient folded angle on the folded preservative film;

step four; and (4) processing holes convenient to tear while troweling the break corners.

2. The process for producing cling film as claimed in claim 1, wherein: the process also uses a preservative film manufacturing device which comprises a driving frame (110), rotating rods (120) and bent rods (130), wherein the rotating rods (120) are all rotated on the driving frame (110), the rotating rods (120) are respectively rotated on the two bent rods (130), and the two bent rods (130) are respectively provided with a plurality of cleaning bases.

3. The process for producing cling film as claimed in claim 2, wherein: the preservative film manufacturing device further comprises a cutter holder (140) and two cutting knives (150), wherein the two cutting knives (150) are fixed on the cutter holder (140), and the cutter holder (140) slides on the driving frame (110).

4. The process for producing cling film as claimed in claim 3, wherein: the preservative film manufacturing device further comprises rotating rods (220), moving frames (230) and limiting rods (240), wherein the two rotating rods (220) rotate on the two moving frames (230) respectively, and the two moving frames (230) slide on the two limiting rods (240) respectively.

5. The process for producing cling film as claimed in claim 4, wherein: the preservative film manufacturing device further comprises a rail (260) and a rotating plate (270), the rotating plates (270) respectively rotate on the rails (260), and the two moving frames (230) respectively move along the rails (260).

6. The process for producing cling film as claimed in claim 4, wherein: the preservative film manufacturing device further comprises ratchet gears (280) and clamping hooks (290), the ratchet gears (280) are respectively fixed on the two rotating rods (220), the clamping hooks (290) are respectively rotated on the two moving frames (230), and the ratchet gears (280) are in friction transmission with the clamping hooks (290) respectively.

7. The process for producing a cling film as claimed in claim 6, wherein; the preservative film manufacturing device further comprises a connecting plate (310) and a plurality of hole punches (320), wherein the hole punches (320) are all fixed on the connecting plate (310).

8. The process for producing cling film as claimed in claim 7, wherein: the plastic wrap manufacturing device further comprises expansion rods (370) and a cam (380), wherein the two expansion rods (370) are respectively slid on the connecting plate (310), the cam (380) rotates on the connecting plate (310), and the cam (380) and the two expansion rods (370) are in friction transmission.

9. The process for producing cling film as claimed in claim 7, wherein: the preservative film manufacturing device further comprises a smoothing roller (360), and the connecting plate (310) can move up and down to drive the smoothing roller (360) to move back and forth.

10. A cling film prepared using the cling film manufacturing process of claim 9, wherein: a preservative film is provided with two semicircular wings, the two semicircular wings are folded to the preservative film, and folding angles are arranged on the two semicircular wings on the preservative film.

Technical Field

The invention relates to the technical field of preservative film processing, in particular to a preservative film and a manufacturing process thereof.

Background

When the normal preservative films coat tableware such as plates, gaps always remain, food in the plates is difficult to coat comprehensively, and if the two layers of preservative films are covered, gaps also remain at the joint, and waste is caused by using too many preservative films once;

for example, a processing system for manufacturing a polyethylene plastic wrap described in publication No. 112297376a includes a material control unit, a support frame, a pressing unit, a feeding unit, and a blowing unit, wherein: the side wall of the lower end of the material control unit is uniformly provided with a support frame, the lower end of the material control unit is provided with a pressing unit in a movable connection mode, the upper end of the material control unit is provided with a feeding unit, the interior of the feeding unit is provided with a blow molding unit in a threaded connection mode, and the blow molding unit is positioned in an inner cavity of the material control unit; the disadvantage of this patent is that it is not possible to process a wrap with two wings.

Disclosure of Invention

The invention aims to provide a preservative film and a manufacturing process thereof, which can be used for processing the preservative film with two wings.

The purpose of the invention is realized by the following technical scheme:

a process for manufacturing a preservative film comprises the following steps:

the method comprises the following steps: cutting the preservative film, and cleaning up scraps after the cutting is finished;

step two: folding two ends of the preservative film in half, and flattening creases after folding in half;

step three: folding a convenient folded angle on the folded preservative film;

step four; and (4) processing holes convenient to tear while troweling the break corners.

A preservative film manufacturing device comprises a driving frame, rotating rods, bent rods, tool holders, cutting knives and a processing frame, wherein the upper ends of the rotating rods are respectively and rotatably connected to the left end and the right end of the driving frame, the lower ends of the rotating rods are respectively and rotatably connected to the two bent rods, the two bent rods are both arc-shaped, the lower ends of the two bent rods are respectively provided with a plurality of cleaning bases, the tool holders are slidably connected to the lower ends of the driving frame, two springs are arranged between the tool holders and the driving frame, sliding frames are respectively arranged on the two tool holders, the two cutting knives are respectively and fixedly connected to the left end and the right end of the tool holders, the shapes of the two cutting knives are the same as that of one end of the tool holders, the two bent rods respectively slide on the sliding frames of the two tool holders, the processing frame is provided with two tool grooves, the shapes of the two tool grooves are the same as that of the two cutting knives, the driving frame is arranged on the processing frame through hydraulic cylinders, the hydraulic cylinders are fixedly connected to the processing frame, the driving frame is fixedly connected to the lower end of the hydraulic cylinder.

A preservative film manufacturing device comprises bottom plates, rotating rollers, moving frames, limiting rods, lead screws, tracks, rotating plates, ratchet gears and clamping hooks, wherein the two bottom plates are fixedly connected to the left end and the right end of a processing frame respectively, sliding grooves are formed in the two bottom plates, the two rotating rollers are rotatably connected to the two moving frames respectively, the two moving frames are slidably connected to the two limiting rods respectively, the two moving frames are connected to the two limiting rods through springs respectively, the two limiting rods are slidably connected to the left end and the right end of the processing frame respectively, extension rods are arranged on the two moving frames, track rods are arranged at two ends of the two moving frames respectively, a plurality of tracks are fixedly connected to the processing frame respectively, the plurality of rotating plates are rotatably connected to the plurality of tracks respectively, torsion springs are arranged between the plurality of rotating plates and the plurality of tracks respectively, the plurality of track rods are in friction transmission with the plurality of tracks respectively, the plurality of ratchet gears are fixedly connected to the two rotating rollers respectively, a plurality of trips rotate respectively and connect on two removal framves, all are equipped with the limiting plate on two removal framves, and a plurality of trips pass through torsional spring coupling with two removal framves respectively, a plurality of ratchet gears respectively with a plurality of trip friction drive, lead screw rotate to be connected on the processing frame, lead screw and two limiting rod screw thread transmission.

The utility model provides a plastic wrap manufacturing installation includes the connecting plate, the hole puncher, dwang II, the sliding block, the elastic block, smooth the roller, expansion rod and cam, the equal fixed connection of a plurality of hole puncher is at the lower extreme of connecting plate, two dwang II all rotate to be connected on the connecting plate, two dwang II rotate respectively to be connected on two sliding blocks, the equal sliding connection of two sliding blocks is on the processing frame, two elastic block difference sliding connection are on two sliding blocks, two elastic blocks pass through spring coupling with two sliding blocks respectively, smooth the roller and rotate to be connected between two elastic blocks, the equal sliding connection of two expansion rods is on the connecting plate, the cam rotates to be connected on the connecting plate, friction drive between cam and two expansion rods.

The utility model provides a preservative film, is equipped with two semicircular wings on a preservative film, with two semicircular wings fifty percent discount to the preservative film on, all be equipped with the dog-ear on two semicircular wings on the preservative film.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a flow chart of a cling film manufacturing process of the present invention;

FIG. 2 is a schematic view of a plastic wrap according to the present invention;

FIG. 3 is a schematic view of a curved bar of the plastic wrap manufacturing apparatus according to the present invention;

FIG. 4 is a schematic view of a holder for a plastic wrap manufacturing apparatus according to the present invention;

FIG. 5 is a schematic view of a bottom plate of the plastic wrap manufacturing apparatus according to the present invention;

FIG. 6 is a schematic view of a movable frame of the plastic wrap manufacturing apparatus according to the present invention;

FIG. 7 is a schematic view of a track of a plastic wrap manufacturing apparatus according to the present invention;

FIG. 8 is a schematic view of a rotating roller of the plastic wrap manufacturing apparatus according to the present invention;

FIG. 9 is a schematic view of a connecting plate of the cling film manufacturing apparatus of the present invention;

FIG. 10 is a schematic view of an expansion bar of the plastic wrap manufacturing apparatus according to the present invention;

FIG. 11 is a schematic view of a processing frame of the plastic wrap manufacturing apparatus according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1;

a process for manufacturing a preservative film, which comprises the following steps:

the method comprises the following steps: cutting the preservative film, and cleaning up scraps after the cutting is finished;

step two: folding two ends of the preservative film in half, and flattening creases after folding in half;

step three: folding a convenient folded angle on the folded preservative film;

step four; and (4) processing holes convenient to tear while troweling the break corners.

As shown in fig. 2;

a preservative film is provided with two semicircular wings, wherein the two semicircular wings are folded on the preservative film, and the two semicircular wings on the preservative film are provided with folding angles;

the product is a preservative film provided with two semicircular wings, when the preservative film with normal size is used for coating tableware such as dishes, gaps are always left, the food in the dishes is difficult to be completely coated, if gaps are left at the joint of the two layers of preservative films, the waste caused by using too many preservative films once is caused, in order to avoid the waste caused in the process of using the preservative film, the circular tableware can be fully coated by the preservative film, the preservative film is provided with two semicircular wings, the processed preservative film is convenient to use by processing the preservative film with large size, so that when the circular tableware is coated, the preservative film and the tableware can be fully attached, the upper part of the tableware is fully shielded, the preservative film is directly aligned with the tableware for covering, the tableware is convenient to use, and simultaneously, the two wings of the preservative film are folded on the preservative film, can avoid the both wings to receive external pollution, reduce the length after the product rolling simultaneously, portable and transportation, the both wings of plastic wrap are hugged closely on the plastic wrap, lead to easily in the use being difficult to open, through set up the dog-ear on the both wings of plastic wrap, convenient to use personnel open the both wings and use.

As shown in fig. 3 and 4;

the preservative film manufacturing process also uses a preservative film manufacturing device, the device comprises a driving frame 110, rotating rods 120, bent rods 130, tool apron 140, cutting knives 150 and a processing frame 160, the upper ends of the rotating rods 120 are respectively and rotatably connected with the left end and the right end of the driving frame 110, the lower ends of the rotating rods 120 are respectively and rotatably connected with the two bent rods 130, the two bent rods 130 are both arc-shaped, the lower ends of the two bent rods 130 are respectively provided with a plurality of cleaning bases, the tool apron 140 is slidably connected with the lower end of the driving frame 110, two springs are arranged between the tool apron 140 and the driving frame 110, two tool apron 140 are respectively provided with a sliding frame, the two cutting knives 150 are respectively and fixedly connected with the left end and the right end of the tool apron 140, the shapes of the two cutting knives 150 are respectively the same as that of one end of the tool apron 140, the two bent rods 130 are respectively and slidably arranged on the sliding frames of the two tool apron 140, the processing frame 160 is provided with two tool grooves, the shapes of the two cutter grooves are the same as those of the two cutting knives 150, the driving frame 110 is arranged on the processing frame 160 through a hydraulic cylinder, the hydraulic cylinder is fixedly connected on the processing frame 160, and the driving frame 110 is fixedly connected at the lower end of the hydraulic cylinder;

the device can cut the preservative film, the preservative film with large size can be too fat by directly using the preservative film, two semicircular wings are cut from the preservative film with large size, thus when the circular tableware is covered, the tableware can be fully covered by the two semicircular wings, the generation of gaps can be avoided, the food is easy to deteriorate, the fragments generated by cutting can be timely processed after the preservative film is cut, the situation that the cutting knife 150 cannot fully cut the preservative film due to the blockage of the fragments can be effectively avoided, if the fragments are adhered to the cutting knife 150, the preservative film is easy to damage when the preservative film is cut, the driving frame 110 is driven to move by the expansion and contraction of the hydraulic cylinder, the driving frame 110 drives the knife holder 140 to move, the knife holder 140 drives the two cutting knives 150 to move, and the two cutting knives 150 move downwards to cut the preservative film, the cutting tool is shaped as shown in fig. 4, because the tool slot is arranged on the processing frame 160, the two cutting tools 150 respectively enter the two tool slots, so as to ensure that the preservative film can be cut more completely, after the cutting is completed, the two cutting tools 150 respectively enter the two tool slots, the tool apron 140 can also press on the preservative film to fix the preservative film, then the driving frame 110 continuously moves downwards to drive the two bent rods 130 to contact with the tool apron 140 to prevent the two bent rods 130 from rotating, simultaneously, the lower ends of the two bent rods 130 contact with the scraps of the preservative film, then the driving frame 110 continuously moves downwards to drive the plurality of rotating rods 120 to rotate, the plurality of rotating rods 120 rotate to drive the two bent rods 130 to slide towards two sides, the two bent rods 130 simultaneously slide towards two sides to press the scraps below to drive the scraps to move towards two sides, and simultaneously the tool apron 140 fixes the preservative film, can also avoid dragging the piece when not thorough because of the cutting, avoid the plastic wrap to produce and damage, leave the processing frame 160 for can both in time clear up the piece after cutting at every turn, thereby improve two cutting knife 150's operating mass with rated load and efficiency.

As shown in fig. 5, 6, 7 and 8;

a preservative film manufacturing device comprises bottom plates 210, rotating rods 220, moving frames 230, limiting rods 240, lead screws 250, tracks 260, rotating plates 270, ratchet gears 280 and clamping hooks 290, wherein the two bottom plates 210 are fixedly connected to the left end and the right end of a processing frame 160 respectively, sliding grooves are formed in the two bottom plates 210 respectively, the two rotating rods 220 are rotatably connected to the two moving frames 230 respectively, the two moving frames 230 are slidably connected to the two limiting rods 240 respectively, the two moving frames 230 are connected with the two limiting rods 240 through springs respectively, the two limiting rods 240 are slidably connected to the left end and the right end of the processing frame 160 respectively, extension rods 231 are arranged on the two moving frames 230 respectively, the track rods 232 are arranged at the two ends of the two moving frames 230 respectively, the tracks 260 are fixedly connected to the processing frame 160 respectively, the rotating plates 270 are rotatably connected to the tracks 260 respectively, torsion springs are arranged between the rotating plates 270 and the tracks 260, the plurality of track rods 232 are in friction transmission with the plurality of tracks 260 respectively, the plurality of ratchet gears 280 are fixedly connected to the two rotating rods 220 respectively, the plurality of clamping hooks 290 are connected to the two moving frames 230 respectively in a rotating mode, limiting plates are arranged on the two moving frames 230 respectively, the plurality of clamping hooks 290 are connected with the two moving frames 230 respectively through torsion springs, the plurality of ratchet gears 280 are in friction transmission with the plurality of clamping hooks 290 respectively, the screw rod 250 is connected to the processing frame 160 in a rotating mode, and the screw rod 250 is in threaded transmission with the two limiting rods 240;

the device can also fold two wings of the preservative film, thereby reducing the width of the rolled preservative film, enabling the preservative film to be smaller and more convenient to use and carry, the preservative film moves along the processing frame 160, the two bottom plates 210 support two wings of the preservative film, the sliding grooves on the two bottom plates 210 enable the two rotating rollers 220 and the moving frame 230 to move in the two sliding grooves respectively, the screw 250 rotates to drive the two limiting rods 240 to move towards the middle, the two limiting rods 240 move towards the middle to drive the two moving frames 230 to move towards the middle, the two moving frames 230 can not rotate due to being respectively connected to the two limiting rods 240 in a sliding way in the moving process towards the middle and always keep moving horizontally, the spring elasticity can also drive the moving frame 230 to move downwards, the two track rods 232 are respectively contacted with the tracks 260 at two ends in the moving process of the moving frame 230, and can be contacted with the rotating plate 270 firstly when the moving frame 230 moves towards the middle, the rotating plate 270 is limited from rotating downwards, the two rail rods 232 will move upwards along the two rotating plates 270 and move towards the middle, then the two rail rods 232 move along the upper ends of the two rails 260, then the two rail rods 232 continue to move along the two rails 260 and lose contact with the two rails 260 and fall at the lower ends of the two rails 260, the line of the rotating roller 220 changes according to the moving line of the two rail rods 232, so that the two rotating rollers 220 can move upwards to leave the two chutes, then the two rotating rollers 220 move towards the middle to fold the two wings of the plastic wrap, then the two rotating rollers 220 move towards the two sides, the two rail rods 232 pass through the fracture of the two rails 260 and cannot move to the upper ends of the two rails 260, the two rail rods 232 and the two rotating plates 270 are contacted to drive the two rotating plates 270 to rotate and can pass through smoothly, at this time, the two rotating rollers 220 can flatten the two wings after being folded fully, the two wings can be more fully attached to the preservative film after being folded in half, and finally the two movable frames 230 respectively return to enter the two sliding grooves through the elastic force of the springs;

further, when the two rotating rods 220 move towards the middle and the two wings of the preservative film are folded, the two rotating rods 220 need to be driven by friction force to move towards the middle, at this time, the two rotating rods 220 cannot rotate, in order to enable the two wings to be folded sufficiently, the rotating rods 220 rotate to drive the two ratchet gears 280 to rotate, the rotation of the two ratchet gears 280 can be limited by the two hooks 290 to be incapable of rotating, at this time, the two rotating rods 220 cannot rotate, so that the two rotating rods 220 respectively perform friction transmission with the two wings of the preservative film to fold the two wings sufficiently, when the two rotating rods 220 move towards the two sides to press the two wings, the two rotating rods 220 need to rotate to press the two wings flatly, the two wings can be reset or damage the preservative film due to friction between the two wings, the rotating rods 220 move towards the two sides to drive the two ratchet gears 280 to rotate, the two ratchet gears 280 rotate to generate friction with the two hooks 290 to drive the two hooks 290 to rotate, at this time, the two rotating rods 220 can normally rotate, so that the two wings of the preservative film are flattened.

As shown in fig. 9, 10 and 11;

a preservative film manufacturing device comprises a connecting plate 310, hole punches 320, rotating rods II 330, sliding blocks 340, elastic blocks 350, smoothing rollers 360, expansion rods 370 and a cam 380, wherein the hole punches 320 are fixedly connected to the lower end of the connecting plate 310, the two rotating rods II 330 are rotatably connected to the two sliding blocks 340 respectively, the two sliding blocks 340 are slidably connected to a processing frame 160 respectively, the two elastic blocks 350 are slidably connected to the two sliding blocks 340 respectively, the two elastic blocks 350 are connected with the two sliding blocks 340 respectively through springs, the smoothing rollers 360 are rotatably connected between the two elastic blocks 350, the two expansion rods 370 are slidably connected to the connecting plate 310 respectively, the cam 380 is rotatably connected to the connecting plate 310, and the cam 380 and the two expansion rods 370 are in friction transmission;

the connecting plate 310 is mounted on the processing frame 160 through a hydraulic cylinder II, the hydraulic cylinder II is fixedly connected to the processing frame 160, the connecting plate 310 is fixedly connected to the hydraulic cylinder II, the cam 380 is driven by external power, the external power selects a speed reducing motor, the speed reducing motor is fixedly connected to the connecting plate 310, and the cam 380 is fixedly connected to an output shaft of the speed reducing motor;

the device can also punch the preservative film, a row of holes which are easy to tear are processed on the preservative film at equal intervals, so that a user can tear the preservative film quickly and conveniently when using the preservative film, the phenomenon that the shape of the preservative film is easy to distort and damage the shapes of two wings of the preservative film when tearing the preservative film by brute force can be avoided, the torn preservative film is more convenient and more complete and attractive in use, the connecting plate 310 is driven to move by the expansion of the hydraulic cylinder II, and the connecting plate 310 moves to drive the plurality of hole punches 320 to move downwards to process a row of holes on the preservative film;

before the two wings of the preservative film are folded by the two rotating rods 220, the connecting plate 310 moves downwards to press the preservative film, after the two wings of the preservative film are folded, the end parts of the two wings fall on the connecting plate 310, after the two wings are folded, the connecting plate 310 moves upwards to drive the end parts of the two wings to be lifted, the output shaft of the speed reduction motor rotates to drive the cam 380 to rotate, the cam 380 rotates to drive the two expansion rods 370 to move towards two sides, the two expansion rods 370 move towards two sides to drive the end parts of the two wings to rotate towards two sides, then the connecting plate 310 moves downwards to drive the two expansion rods 370 to move downwards, the two expansion rods 370 move downwards to bend the end parts of the two wings towards two sides to press on the preservative film, at the moment, the two rotating rods 220 move towards two sides, the two expansion rods 370 can also fix the two wings of the preservative film, the phenomenon that the two wings slide in the flattening process to cause insufficient folding is avoided, the two moving frames 230 are provided with a plurality of extension rods 231, the extension rods 231 can ensure that the two expansion rods 370 limit the two wings when the end parts of the two wings are bent, and meanwhile, the two expansion rods 370 are not in contact with the extension rods 231, so that the two moving frames 230 can move normally;

further, still can drive a plurality of dwang II 330 rotations in connecting plate 310 removal in-process, a plurality of dwang II 330 rotations drive two sliding blocks 340 round trip to slide, two sliding blocks 340 round trip to slide drive two elastic blocks 350 round trip to move, two elastic blocks 350 round trip to move drive and smooth 360 round trip to move, smooth 360 round trip to move and can roll in the plastic wrap once more and carry out the flattening, two wing tip after folding two expansion bars 370 and pressing flatten, two elastic blocks 350 drive the downstream through spring force, two elastic blocks 350 downstream drive and smooth 360 downstream of roller, make smooth 360 that can be inseparable of roller press on the plastic wrap, make the process of flattening more abundant.