Film sleeving packaging machine

Abstract

The invention relates to the technical field of packaging, and particularly discloses a film-sleeving packaging machine which comprises a discharging unit, a film-sleeving unit, a film-sleeving unit, a film-sleeving unit, a film-sleeving unit and a film-sleeving unit. The feeding unit and the discharging unit are arranged at the two ends of the discharging unit; the film sleeving unit comprises a first support and a film sleeving column installed on the first support, a lifting part is arranged on the first support, a clamping part is installed at the output end of the lifting part, and a rotary cutting part and a film removing part are arranged at the lower end of the first support; a sleeve film material belt is guided and then arranged on the sleeve film column in a penetrating mode, a sleeve film on the sleeve film column is driven to be periodically and downwards fed through cooperation of the lifting piece and the clamping piece, the sleeve film is annularly cut into the specified length through the rotary cutting piece, and the cut sleeve film is downwards pushed and embedded in the periphery of an object under guiding of the film removing piece. The sleeve film can be wrapped and guided by the film removing part, so that the sleeve film smoothly and flatly penetrates through the edge of the upper end of an object, the sleeve film is effectively prevented from wrinkling and deforming, and the flatness and attractiveness of the sleeve film are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging, and more particularly to a sleeve packaging machine. Background Art

[0002] The film packaging machine is an automated packaging equipment, which is mainly used to wrap the product in a film to enhance the product's aesthetics and protection.

[0003] When objects are packaged with film, the objects are generally fed to a conveyor belt through a feeding device, and the objects are arranged using the conveyor belt, so that the objects are directed in the order of arrangement, and then the objects are filmed one by one; during the filming process, since the film is soft in texture, when the film contacts the upper edge of the object, it is easy to cause the film to wrinkle and deform, thereby affecting the flatness of the filming effect, and further affecting the aesthetics of the finished filmed object. Summary of the invention

[0004] In order to overcome the above technical problems, the present invention proposes a sleeve film packaging machine.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A film packaging machine, comprising:

[0007] A discharging unit, which is used to arrange and feed objects, comprises a discharging rack, a conveyor belt rotatably mounted on the discharging rack, and a driving motor for driving the conveyor belt;

[0008] A feeding unit, which is arranged at the inlet end of the discharge unit and is used to supply objects to be coated to the discharge unit;

[0009] A material discharge unit, which is arranged at the outlet end of the material discharge unit and is used to receive the finished products discharged by the material discharge unit;

[0010] The film unit is arranged on one side of the discharge unit close to the loading unit, and includes a first bracket fixed on the discharge frame, a film column vertically installed on the first bracket, and a material tape reel rotatably installed on the first bracket. A lifting member is also provided on the first bracket, and a clamping member adapted to the film column is installed on the output end of the lifting member. A film tape is wound on the material tape reel, and one end of the film tape away from the material tape reel is vertically sleeved on the film column. A rotary cutting member for circularly cutting the film is provided at the lower end of the first bracket.

[0011] As a further solution of the present invention: the lifting member includes a first slide rail vertically fixed on the first bracket, a first slide table slidably mounted on the first slide rail, and a lifting motor fixed on the first bracket, the output end of the lifting motor is connected to a lifting screw, the first slide table is threadedly connected to the lifting screw, and the clamping member is mounted on the first slide table;

[0012] The clamping member comprises a rotating shaft fixed on the first slide, two groups of clamping plates symmetrically mounted on the rotating shaft, and a clamping cylinder fixed on the first slide, and connecting rods are hinged between the output end of the clamping cylinder and the two groups of clamping plates.

[0013] As a further solution of the present invention: the peeling member includes a fixed platform fixed on the first bracket, a turntable rotatably arranged in the fixed platform, and a peeling motor fixed on one side of the first bracket, the output end of the peeling motor is connected to the turntable through a transmission belt, a second slide rail is fixed on the turntable, a second slide table is slidably mounted on the second slide rail, a blade is detachably mounted on the second slide table, and a peeling groove adapted to the blade is opened on the film sleeve column;

[0014] The second slide is also provided with an electromagnet, an iron block adapted to the electromagnet is fixed at one end of the second slide rail, a return spring is provided between the iron block and the second slide, and a limiting column is provided at one end of the second slide rail away from the iron block.

[0015] As a further solution of the present invention: a demolding part is also provided on the first slide, and the demolding part includes a connecting frame fixed on the first slide, and the lower end of the connecting frame is movably sleeved on the film sleeve column, and a plurality of demolding plates are circumferentially arranged on the connecting frame, and an elastic push block is arranged on the side of the demolding plate facing the film sleeve column, and two groups of first telescopic rods are slidably arranged at the lower end of the demolding plate, and a flexible expansion support plate is fixed to the lower end of the first telescopic rod, and a second spring is sleeved on the first telescopic rod.

[0016] As a further solution of the present invention: it also includes a covering film unit, which is arranged on a side of the film unit away from the loading unit, including a second bracket fixed on the discharge rack and a unwinding drum and a winding drum rotatably mounted on the second bracket, a covering film strip is wound between the unwinding drum and the winding drum, and a covering film piece adapted to the covering film strip is arranged on the second bracket.

[0017] As a further solution of the present invention: the film covering member includes a first mounting platform fixed on the second bracket, two groups of first guide rods vertically fixed on the first mounting platform, and a first lifting platform slidably sleeved on the first guide rods, a film covering cylinder for driving the first lifting platform is installed on the first mounting platform, and a film covering cylinder and a positioning cylinder are arranged on the lower end surface of the first lifting platform.

[0018] As a further solution of the present invention: the film covering cylinder comprises a cylinder body fixed on the first lifting platform, an elastic telescopic punch is slidably mounted on the lower end of the cylinder body, and a center column is fixed at the center of the lower end of the cylinder body.

[0019] As a further solution of the present invention: it also includes a heat shrink unit, which is arranged on one side of the discharge unit close to the unloading unit, including a third bracket, a third lifting platform vertically slidably arranged on the third bracket, and a cover fixed on the third lifting platform, and passages for objects to pass through are opened at both ends of the cover, and a lifting cylinder for driving the third lifting platform is installed on the third bracket;

[0020] A plurality of groups of hot air blowers are installed on the top of the housing, and the output end of the hot air blower is connected to a wind hood through an air duct. The wind hood is located inside the housing, and a plurality of electric heating pipes are symmetrically arranged on both sides of the housing.

[0021] As a further solution of the present invention: the feeding unit comprises a hopper and a feeding platform connected to the inlet end of the conveyor belt, a discharge channel is arranged at the lower end of the hopper, a material shifting block is rotatably installed on one side of the material shifting channel, and a material shifting motor for driving the material shifting block is installed on the hopper;

[0022] A first flipping channel is connected between the loading platform and the discharging channel. The first flipping channel is used to adjust objects in a lying position to an upright position. A first pushing cylinder is arranged on one side of the discharging channel. The output end of the first pushing cylinder is connected to the first pushing platform.

[0023] As a further solution of the present invention: the unloading unit includes a fourth bracket, a receiving box detachably mounted on the fourth bracket, and a second pushing platform arranged on one side of the fourth bracket, a unloading channel connected to the outlet end of the conveyor belt is arranged on one side of the second pushing platform, a second flipping channel is connected between the unloading channel and the second pushing platform, and the second flipping channel is used to adjust the object in an upright posture to a lying posture;

[0024] A second pushing cylinder is arranged at the material discharge channel, and a second pushing plate is connected to the output end of the second pushing cylinder. A third pushing cylinder is arranged on the second pushing platform, and a third pushing plate is connected to the output end of the third pushing cylinder.

[0025] Beneficial effects of the present invention:

[0026] The film strip is guided and then passed through the film column. The lifting part and the clamping part cooperate to drive the film on the film column to feed downward periodically. The film is cut into a specified length in an annular shape by the rotary cutting part. Under the guidance of the film stripping part, the cut film is pushed downward and nested around the object. The film stripping part can wrap and guide the film so that the film can pass through the upper edge of the object smoothly, thereby effectively preventing the film from wrinkling and deformation and improving the flatness and aesthetics of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the discharge unit in the present invention;

[0030] Figure 3 It is a structural schematic diagram of the discharge unit in the present invention from another perspective;

[0031] Figure 4 It is a structural schematic diagram of the membrane unit in the present invention;

[0032] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0033] Figure 6 It is a structural schematic diagram of the film cover unit in another perspective of the present invention;

[0034] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0035] Figure 8 It is a schematic diagram of the structure of the rotary cutting member in the present invention;

[0036] Fig. 9 It is a schematic structural diagram of the demoulding member in the present invention;

[0037] Fig.10 It is a structural schematic diagram of the cover film unit in the present invention;

[0038] Fig.11 It is a structural schematic diagram of the cover film member in the present invention;

[0039] Fig.12 It is a structural schematic diagram of the film covering cylinder in the present invention;

[0040] Fig.13 It is a structural schematic diagram of the pressing member in the present invention;

[0041] Fig.14 It is a structural schematic diagram of the heat shrink unit in the present invention;

[0042] Fig.15 It is a structural schematic diagram of the heat shrink unit in the present invention from another perspective;

[0043] Fig.16 It is a structural schematic diagram of the feeding unit in the present invention;

[0044] Fig.17 It is a structural schematic diagram of the feeding unit in the present invention from another perspective;

[0045] Fig.18 It is a structural schematic diagram of the material unloading unit in the present invention;

[0046] Fig.19 It is a structural schematic diagram of the unloading unit in the present invention from another perspective.

[0047] In the figure:

[0048] 100, discharging unit; 110, discharging rack; 120, conveyor belt; 130, driving motor; 140, pressing member; 141, second mounting platform; 142, second guide rod; 143, second lifting platform; 144, pressing cylinder; 145, second telescopic rod; 146, film covering pressing cylinder; 147, supporting spring; 148, film covering pressing cylinder;

[0049] 200, feeding unit; 210, hopper; 220, discharge channel; 230, material shifting block; 240, material shifting motor; 250, feeding platform; 260, first turning channel; 270, first material pushing cylinder; 280, first material pushing platform;

[0050] 300, film covering unit; 310, first bracket; 311, first guide roller; 312, film guide roller; 320, film covering column; 321, wedge-shaped end; 322, peeling groove; 330, material tape reel; 340, lifting member; 341, first slide rail; 342, first slide; 343, lifting motor; 344, lifting screw; 350, clamping member; 351, rotating shaft; 352, clamping plate; 353, clamping cylinder; 354, connecting rod; 360, peeling member; 3 61. fixed table; 362. turntable; 363. second slide rail; 364. second slide table; 365. electromagnet; 366. iron block; 367. reset spring; 368. limit column; 369. blade; 3610. rotary cutting motor; 3611. transmission belt; 370. film sleeve material belt; 380. film stripping member; 381. connecting frame; 382. film stripping plate; 383. elastic push block; 384. first telescopic rod; 385. flexible expansion support plate; 386. second spring;

[0051] 400, film covering unit; 410, second bracket; 411, traction roller; 412, second guide roller; 413, tension slide; 414, tension roller; 415, traction motor; 420, unwinding drum; 430, winding drum; 440, film covering material strip; 450, film covering member; 451, first mounting platform; 452, first guide rod; 453, first lifting platform; 454, film covering cylinder; 455, film covering cylinder; 4551, cylinder body; 4552, elastic telescopic punch; 4553, center column; 456, positioning cylinder;

[0052] 500, heat shrink unit; 510, third bracket; 520, third lifting platform; 530, lifting cylinder; 540, cover; 541, channel; 550, hot air blower; 551, air duct; 552, air cover; 560, electric heating pipe;

[0053] 600, unloading unit; 610, fourth bracket; 611, adjusting slide rail; 612, third mounting platform; 613, adjusting motor; 614, adjusting screw rod; 620, receiving box; 630, second pushing platform; 640, unloading channel; 650, second turning channel; 660, second pushing cylinder; 670, second pushing plate; 680, third pushing cylinder; 690, third pushing plate;

[0054] 700. Objects. DETAILED DESCRIPTION

[0055] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0056] See also Figure 1 The present invention discloses a sleeve film packaging machine, including a discharging unit 100, a loading unit 200, a sleeve film unit 300, a cover film unit 400, a heat shrink unit 500 and a unloading unit 600;

[0057] See also Figure 2 and Figure 3 The discharging unit 100 is used to arrange and feed the objects 700, and includes a discharging rack 110, a conveyor belt 120 rotatably mounted on the discharging rack 110, and a driving motor 130 for driving the conveyor belt 120;

[0058] The feeding unit 200 is disposed at the inlet end of the discharge unit 100, and is used to supply the objects 700 to be coated to the discharge unit 100;

[0059] The unloading unit 600 is disposed at the outlet end of the discharging unit 100 and is used to receive the finished product objects 700 discharged from the discharging unit 100;

[0060] See also Figure 4 and Figure 6The film unit 300 is arranged on one side of the discharge unit 100 close to the loading unit 200, and includes a first bracket 310 fixed on the discharge frame 110, a film column 320 vertically installed on the first bracket 310, and a material tape reel 330 rotatably installed on the first bracket 310. The first bracket 310 is also provided with a lifting member 340, and a clamping member 350 adapted to the film column 320 is installed at the output end of the lifting member 340. A film tape 370 is wound on the material tape reel 330, and one end of the film tape 370 away from the material tape reel 330 is vertically sleeved on the film column 320. The lower end of the first bracket 310 is provided with a rotary cutting member 360 for circularly cutting the film.

[0061] See also Fig.10 The covering film unit 400 is arranged on a side of the film sleeve unit 300 away from the loading unit 200, and includes a second bracket 410 fixed on the discharge rack 110, and a reel 420 and a reel 430 rotatably mounted on the second bracket 410, a covering film strip 440 is wound between the reel 420 and the reel 430, and a covering film member 450 adapted to the covering film strip 440 is arranged on the second bracket 410;

[0062] The heat shrink unit 500 is disposed on one side of the discharge unit 100 close to the unloading unit 600 , and is used to perform heat shrink packaging on the sleeve film and the cover film on the object 700 .

[0063] Specifically, the objects 700 to be packaged with film are sequentially conveyed to the conveyor belt 120 of the discharge unit 100 by the loading unit 200 for arrangement, and the driving motor 130 drives the conveyor belt 120, so that the objects 700 are fed toward the outlet end in a linear arrangement;

[0064] When the object 700 passes through the film covering unit 300, the rotary cutting member 360 cuts off the film covering on the film covering column 320, the clamping member 350 clamps the film covering, and the lifting member 340 drives the clamping member 350 to move downward along the film covering column 320, thereby ejecting the film covering cut off at the lower end of the film covering column 320 and covering the outer periphery of the object 700, and then the clamping member 350 is sent away, and the lifting member 340 drives the clamping member 350 to move upward and reset;

[0065] When the object 700 passes through the film covering unit 400, the film covering member 450 punches downward the film on the film covering strip 440 and presses it onto the object 700. Then, the film covering member 450 moves upward and resets, and the winding drum 430 winds up the remaining film covering strip 440.

[0066] When the object 700 passes through the heat shrink unit 500 , the sleeve film and the cover film on the object 700 are heat shrunk by the heat shrink unit 500 , and then the finished object 700 is discharged from the outlet end of the discharge unit 100 into the unloading unit 600 .

[0067] In one embodiment, see Figure 6 The lifting member 340 includes a first slide rail 341 vertically fixed on the first bracket 310, a first slide 342 slidably mounted on the first slide rail 341, and a lifting motor 343 fixed on the first bracket 310, the output end of the lifting motor 343 is connected to a lifting screw 344, the first slide 342 is threadedly connected to the lifting screw 344, and the clamping member 350 is mounted on the first slide 342;

[0068] Specifically, the lifting motor 343 drives the lifting screw 344 to rotate, thereby driving the first slide 342 to move up and down along the first slide rail 341 to achieve height adjustment of the clamping member 350, thereby driving the film on the film column 320 to feed downward periodically.

[0069] Also, see Figure 4 and Figure 5 In order to facilitate the film tape 370 wound on the tape reel 330 to be smoothly put on the film column 320 and fed downward, a plurality of first guide rollers 311 are rotatably provided on the first bracket 310, and the first guide rollers 311 are located between the tape reel 330 and the film column 320; a wedge-shaped end 321 is provided at the upper end of the film column 320, and a film guide roller 312 that is in rolling contact with the film column 320 is rotatably installed on the first bracket 310;

[0070] The film strip 370 on the strip reel 330 is pulled out and passed around each group of first guide rollers 311, and then the film strip 370 is put on the film column 320 through the wedge-shaped end 321, and the film strip 370 is pressed against the outer circumference of the film column 320 by the film guide roller 312. When the film is transported downward along the film column 320, the film guide roller 312 will also rotate adaptively.

[0071] For further information, see Figure 6 and Figure 7 The clamping member 350 includes a rotating shaft 351 fixed on the first slide 342, two sets of clamping plates 352 symmetrically mounted on the rotating shaft 351, and a clamping cylinder 353 fixed on the first slide 342, and a connecting rod 354 is hinged between the output end of the clamping cylinder 353 and the two sets of clamping plates 352;

[0072] When the film on the film column 320 needs to be fed downward, the output end of the clamping cylinder 353 retracts, and under the action of the connecting rod 354, the two groups of clamping plates 352 are driven to clamp, so that the film on the film column 320 is tightly held, and then the lifting member 340 drives the clamping member 350 to move downward as a whole, which can drive the film to be fed downward along the film column 320; then the output end of the clamping cylinder 353 extends out, and under the action of the connecting rod 354, the two groups of clamping plates 352 are driven to open, at this time the clamping member 350 is separated from the film, and the film remains in the current position, and the clamping member 350 can be driven by the lifting member 340 to reset upward.

[0073] For further information, see Figure 4 and Figure 8 The peeling member 360 includes a fixed platform 361 fixed on the first bracket 310, a turntable 362 rotatably arranged in the fixed platform 361, and a peeling motor 3610 fixed on one side of the first bracket 310. The output end of the peeling motor 3610 is connected to the turntable 362 through a transmission belt 3611. A second slide rail 363 is fixed on the turntable 362. A second slide 364 is slidably mounted on the second slide rail 363. A blade 369 is detachably mounted on the second slide 364. A peeling groove 322 adapted to the blade 369 is provided on the film sleeve column 320; an electromagnet 365 is also provided on the second slide 364. An iron block 366 adapted to the electromagnet 365 is fixed at one end of the second slide rail 363. A return spring 367 is provided between the iron block 366 and the second slide 364. A limiting column 368 is provided at one end of the second slide rail 363 away from the iron block 366.

[0074] Specifically, in the initial state, the electromagnet 365 is not energized, and the second slide 364 is away from the iron block 366 and contacts the limit column 368 under the elastic force of the return spring 367. At this time, the blade 369 does not contact the sleeve film; when the sleeve film needs to be cut, the electromagnet 365 is energized, thereby being attracted to the iron block 366. During the attraction process, the second slide 364 is driven to slide along the second slide rail 363 toward one end of the iron block 366, thereby driving the blade 369 to radially insert into the rotation of the sleeve film column 320. The rotary disc 362 is then driven by the rotary cutting motor 3610 to rotate the cutting blade 369 around the film sleeve column 320, so as to realize the circumferential rotary cutting of the cylindrical film sleeve, and cut off the film sleeve at the lower end of the rotary cutting groove 322, so as to be used for film processing of the object 700 below; after the rotary cutting is completed, the electromagnet 365 is powered off again, and the second slide 364 is automatically reset under the action of the reset spring 367, so that the blade 369 is separated from the film sleeve.

[0075] See also Figure 6 and Fig. 9, considering that the cut film is in the process of being put on the outer peripheral surface of the object 700, due to the soft texture of the film, when the film contacts the object 700, the film is prone to wrinkle and deform, which makes it impossible for the film to be put on the object 700 smoothly; for this reason, the first slide 342 is also provided with a demolding member 380, and the demolding member 380 includes a connecting frame 381 fixed on the first slide 342, and the lower end of the connecting frame 381 is movably sleeved on the film sleeve column 320, and a plurality of demolding plates 382 are circumferentially arranged on the connecting frame 381, and an elastic push block 383 is arranged on the side of the demolding plate 382 facing the film sleeve column 320, and two groups of first telescopic rods 384 are slidably arranged at the lower end of the demolding plate 382, ​​and a flexible expansion support plate 385 is fixed to the lower end of the first telescopic rod 384, and a second spring 386 is sleeved on the first telescopic rod 384;

[0076] When the lifting member 340 drives the clamping member 350 to push the film downward, the connecting frame 381 and the film stripping plate 382 move downward synchronously. At this time, the elastic pushing block 383 presses the film on the film sleeve column 320, thereby pushing the cut film sleeve downward, and the flexible expansion plate 385 at the bottom of the film stripping plate 382 wraps the cut film sleeve lower end and moves downward with the cut film sleeve until the flexible expansion plate 385 contacts the upper edge of the object 700. The film sleeve is guided by the flexible expansion plate 385, so that the lower end of the film sleeve can be smoothly sleeved on the outer periphery of the object 700, and the film sleeve will not be wrinkled or deformed. When the film sleeve is completely sleeved on the object 700, the film stripping plate 382 continues to move downward for a distance, so that the flexible expansion plate 385 is pulled out of the film sleeve. At this time, the film sleeve is tightly attached to the outer peripheral surface of the object 700, and then the lifting member 340 drives the film stripping member 380 to move upward as a whole, so that the film stripping member 380 can be reset.

[0077] It should be noted that the elastic push block 383 can be deformed under pressure, thereby exerting sufficient friction on the sleeve to ensure the pushing effect of the sleeve; the flexible expansion plate 385 can be made of soft materials such as silicone, and is mainly used to wrap the lower end of the sleeve and guide the sleeve, so that the sleeve can be smoothly put on the object 700 without wrinkling and deformation; after the sleeve is completely put on the object 700, the reverse friction force generated on the sleeve when the elastic push block 383 and the flexible expansion plate 385 rise and reset is smaller than the friction between the sleeve and the object 700, so that the sleeve will not be pulled out again.

[0078] In yet another embodiment, see Fig.10The film covering unit 400 further includes a traction roller 411 rotatably mounted on a second bracket 410, and a traction motor 415 for driving the traction roller 411 is mounted on the second bracket 410; a plurality of second guide rollers 412 are arranged between the traction roller 411 and the unwinding drum 420, and the second guide rollers 412 are rotatably mounted on the second bracket 410, and a tensioning slide 413 is also slidably arranged on the second bracket 410, and a tensioning roller 414 is rotatably mounted on the tensioning slide 413; a coil spring is arranged inside the winding drum 430;

[0079] Specifically, the covering film strip 440 on the unwinding drum 420 is passed around the second guide roller 412, the tensioning roller 414 and the traction roller 411 in sequence and is wound around the winding drum 430. By adjusting the tensioning slide 413, the tensioning roller 414 stretches the covering film strip 440 to make it tight and straight. When the object 700 passes through the covering film component 450, the covering film on the covering film strip 440 is pressed against the upper end of the object 700 by the covering film component 450. Then, the traction motor 415 drives the traction roller 411 to rotate, thereby pulling the covering film strip 440 toward one end of the winding drum 430. The winding drum 430 reels the remaining covering film strip 440 under the action of the internal winding spring.

[0080] For further information, see Fig.11 The film covering member 450 includes a first mounting platform 451 fixed on the second bracket 410, two sets of first guide rods 452 vertically fixed on the first mounting platform 451, and a first lifting platform 453 slidably sleeved on the first guide rods 452, a film covering cylinder 454 for driving the first lifting platform 453 is installed on the first mounting platform 451, and a film covering cylinder 455 and a positioning cylinder 456 are arranged on the lower end surface of the first lifting platform 453;

[0081] When the object 700 reaches directly below the covering film cylinder 455, the covering film cylinder 454 drives the first lifting platform 453 downward along the first guide rod 452, thereby driving the covering film cylinder 455 and the positioning cylinder 456 to move downward synchronously, and the covering film on the covering film strip 440 is punched downward by the covering film cylinder 455 and pressed onto the object 700. During the process of pressing the covering film, the positioning cylinder 456 contacts the adjacent object 700, thereby positioning the object 700 and ensuring the consistency of the spacing between adjacent objects 700.

[0082] For further information, see Fig.12 The film covering cylinder 455 comprises a cylinder body 4551 fixed on the first lifting platform 453, an elastic retractable punch 4552 is slidably mounted on the lower end of the cylinder body 4551, and a center column 4553 is fixed at the center of the lower end of the cylinder body 4551;

[0083] When the covering film cylinder 455 moves downward to press the covering film, the elastic telescopic punch 4552 punches and cuts the covering film on the covering film strip 440 until the elastic telescopic punch 4552 presses the covering film onto the object 700. As the cylinder 4551 continues to move downward, the elastic telescopic punch 4552 retracts into the cylinder 4551, and the covering film is attached to the object 700 under the pressing action of the central column 4553, thereby preventing the elastic telescopic punch 4552 and the object 700 from being squeezed and damaged, and ensuring that the covering film is stably attached to the object 700.

[0084] Also, see Figure 2 and Fig.13 In order to further improve the adhesion effect of the sleeve film and the cover film to the object 700, a pressing member 140 is further provided on the discharge rack 110, and the pressing member 140 is arranged between the cover film unit 400 and the heat shrink unit 500. The pressing member 140 includes a second mounting platform 141 fixed on the discharge rack 110, two sets of second guide rods 142 vertically slidably mounted on the second mounting platform 141, and a second lifting platform 143 fixed to the lower end of the second guide rod 142, and a pressing cylinder 144 for driving the second lifting platform 143 is installed on the second mounting platform 141; a second telescopic rod 145 is vertically slidably mounted on the second lifting platform 143, and a cover film pressing cylinder 146 is fixed to the lower end of the second telescopic rod 145, and a supporting spring 147 is sleeved on the second telescopic rod 145, and a sleeve film pressing cylinder 148 is also provided on the second lifting platform 143;

[0085] When the objects 700 pass through the pressing member 140, the pressing cylinder 144 drives the second lifting platform 143 downward along the second guide rod 142, driving the covering film pressing cylinder 146 to press the covering film of one group of objects 700, and at the same time, the sleeve film pressing cylinder 148 presses the sleeve film of the adjacent group of objects 700. The cooperation between the covering film pressing cylinder 146 and the sleeve film pressing cylinder 148 makes the covering film and the sleeve film on the objects 700 adhere more smoothly and tightly, which is beneficial to improving the aesthetics of the covering film and the sleeve film after heat shrink treatment.

[0086] In further embodiments, see Fig.14 and Fig.15 The heat shrink unit 500 includes a third bracket 510, a third lifting platform 520 vertically slidably arranged on the third bracket 510, and a cover 540 fixed on the third lifting platform 520. Channels 541 for the passage of the object 700 are opened at both ends of the cover 540. A lifting cylinder 530 for driving the third lifting platform 520 is installed on the third bracket 510; a plurality of groups of hot air blowers 550 are installed on the top of the cover 540, and the output end of the hot air blower 550 is connected to a wind cover 552 through a wind duct 551. The wind cover 552 is located in the cover 540, and a plurality of electric heating pipes 560 are symmetrically arranged on both sides of the cover 540;

[0087] After the object 700 enters the cover shell 540 through the channel 541, the third lifting platform 520 and the cover shell 540 are driven downward by the lifting cylinder 530, and the object 700 is covered in the wind cover 552. The hot air blower 550 blows hot air into the wind cover 552, so that the sleeve film and the cover film on the object 700 are heat-shrunk. At the same time, the electric heating tube 560 performs auxiliary heating on the inside of the cover shell 540 to make the heat shrinkage effect of the object 700 more uniform.

[0088] For further information, see Fig.16 and Fig.17 The feeding unit 200 includes a hopper 210 and a feeding platform 250 connected to the inlet end of the conveyor belt 120, a discharge channel 220 is provided at the lower end of the hopper 210, a material shifting block 230 is rotatably installed on one side of the discharge channel 220, and a material shifting motor 240 for driving the material shifting block 230 is installed on the hopper 210; a first turning channel 260 is connected between the feeding platform 250 and the discharge channel 220, and the first turning channel 260 is used to adjust the object 700 in a lying position to an upright position, a first pushing cylinder 270 is provided on one side of the discharge channel 220, and the output end of the first pushing cylinder 270 is connected to the first pushing platform 280;

[0089] Specifically, the objects 700 to be covered with film are stacked in a flat position in the hopper 210, and the material discharging motor 240 drives the material discharging block 230 to rotate, so that the objects 700 in the hopper 210 enter the discharge channel 220 in turn, and then the first pushing cylinder 270 drives the first pushing table 280, so that the objects 700 in the discharge channel 220 are pushed into the first turning channel 260 in turn. When the objects 700 pass through the first turning channel 260, they are gradually adjusted from a flat position to an upright position. When the objects 700 arrive at the exit of the loading platform 250, they are just in a completely upright position, and then arrive at the conveyor belt 120 for arrangement and feeding.

[0090] See also Fig.18 and Fig.19 , the unloading unit 600 includes a fourth bracket 610, a receiving box 620 detachably mounted on the fourth bracket 610, and a second pushing platform 630 arranged on one side of the fourth bracket 610, a unloading channel 640 connected to the outlet end of the conveyor belt 120 is arranged on one side of the second pushing platform 630, a second flipping channel 650 is connected between the unloading channel 640 and the second pushing platform 630, and the second flipping channel 650 is used to adjust the object 700 in an upright posture to a lying posture; a second pushing cylinder 660 is arranged at the unloading channel 640, and a second pushing plate 670 is connected to the output end of the second pushing cylinder 660, and a third pushing cylinder 680 is arranged on the second pushing platform 630, and a third pushing plate 690 is connected to the output end of the third pushing cylinder 680;

[0091] Specifically, when the object 700 reaches the unloading channel 640, the second pushing cylinder 660 drives the second pushing plate 670 to push the object 700 into the second flipping channel 650, and gradually adjusts the object 700 in an upright position to a lying position. When the object 700 is pushed onto the second pushing platform 630, it is just in a lying position. Then, the third pushing cylinder 680 drives the third pushing plate 690 to push the objects 700 arranged on the second pushing platform 630 into the receiving box 620 to complete unloading.

[0092] In order to facilitate the loading of the material box 620 layer by layer, the fourth bracket 610 is provided with an adjusting slide rail 611, and a third mounting platform 612 is slidably mounted on the adjusting slide rail 611. The material box 620 is detachably mounted on the third mounting platform 612. An adjusting screw rod 614 is rotatably mounted on the fourth bracket 610, and the adjusting screw rod 614 is threadedly connected to the third mounting platform 612. An adjusting motor 613 for driving the adjusting screw rod 614 is also installed on the fourth bracket 610;

[0093] After the third pushing plate 690 pushes a row of objects 700 on the second pushing platform 630 into the receiving box 620, the adjusting motor 613 drives the adjusting screw 614 to rotate, thereby driving the third mounting platform 612 and the receiving box 620 to move downward for a certain distance synchronously, and the upper space of the receiving box 620 can continue to be filled with objects 700, so as to realize continuous material receiving of the receiving box 620.

[0094] The specific implementation methods of this embodiment are described above, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms inspired by this embodiment, all of which are within the protection of this embodiment.

Claims

1. A film packaging machine, characterized in that: include: A discharging unit (100) for arranging and feeding objects (700), comprising a discharging frame (110), a conveyor belt (120) rotatably mounted on the discharging frame (110), and a driving motor (130) for driving the conveyor belt (120); A feeding unit (200) is arranged at the inlet end of the discharge unit (100) and is used to supply the object (700) to be coated with film to the discharge unit (100); A material discharge unit (600), which is arranged at the outlet end of the material discharge unit (100) and is used to receive the finished product objects (700) discharged by the material discharge unit (100); The film covering unit (300) is arranged on one side of the discharge unit (100) close to the loading unit (200), and comprises a first bracket (310) fixed on the discharge frame (110), a film covering column (320) vertically mounted on the first bracket (310), and a material tape reel (330) rotatably mounted on the first bracket (310). The first bracket (310) is also provided with a lifting member (340), and the output end of the lifting member (340) is provided with a A clamping member (350) is adapted for the film column (320), a film tape (370) is wound on the tape reel (330), and one end of the film tape (370) away from the tape reel (330) is vertically sleeved on the film column (320), a rotary cutting member (360) for circumferentially cutting the film is arranged at the lower end of the first bracket (310), and a film stripping member (380) for guiding the cut film is arranged at the lower end of the film column (320).

2. A film packaging machine according to claim 1, characterized in that: The lifting member (340) comprises a first slide rail (341) vertically fixed on the first bracket (310), a first slide platform (342) slidably mounted on the first slide rail (341), and a lifting motor (343) fixed on the first bracket (310); the output end of the lifting motor (343) is connected to a lifting screw rod (344); the first slide platform (342) is threadedly connected to the lifting screw rod (344); and the clamping member (350) is mounted on the first slide platform (342); The clamping member (350) comprises a rotating shaft (351) fixed on the first slide (342), two groups of clamping plates (352) symmetrically mounted on the rotating shaft (351), and a clamping cylinder (353) fixed on the first slide (342), and a connecting rod (354) is hinged between the output end of the clamping cylinder (353) and the two groups of clamping plates (352).

3. A film packaging machine according to claim 2, characterized in that: The peeling member (360) comprises a fixed platform (361) fixed on the first bracket (310), a turntable (362) rotatably arranged in the fixed platform (361), and a peeling motor (3610) fixed on one side of the first bracket (310); the output end of the peeling motor (3610) is connected to the turntable (362) via a transmission belt (3611); a second slide rail (363) is fixed on the turntable (362); a second slide platform (364) is slidably mounted on the second slide rail (363); a blade (369) is detachably mounted on the second slide platform (364); and a peeling groove (322) adapted to the blade (369) is provided on the film column (320); An electromagnet (365) is also provided on the second slide (364); an iron block (366) adapted to the electromagnet (365) is fixed to one end of the second slide rail (363); a return spring (367) is provided between the iron block (366) and the second slide (364); and a limiting column (368) is provided at one end of the second slide rail (363) away from the iron block (366).

4. A film packaging machine according to claim 3, characterized in that: The film stripping member (380) includes a connecting frame (381) fixed on the first slide (342), the lower end of the connecting frame (381) is movably mounted on the film sleeve column (320), a plurality of film stripping plates (382) are circumferentially arranged on the connecting frame (381), an elastic push block (383) is arranged on the side of the film stripping plate (382) facing the film sleeve column (320), two groups of first telescopic rods (384) are slidably arranged at the lower end of the film stripping plate (382), a flexible expansion support plate (385) is fixed at the lower end of the first telescopic rod (384), and a second spring (386) is sleeved on the first telescopic rod (384).

5. The film packaging machine according to claim 1, characterized in that: It also includes a covering film unit (400), which is arranged on a side of the film sleeve unit (300) away from the loading unit (200), and includes a second bracket (410) fixed on the discharge rack (110) and a reel (420) and a reel (430) rotatably mounted on the second bracket (410), a covering film strip (440) being wound between the reel (420) and the reel (430), and a covering film member (450) adapted to the covering film strip (440) is arranged on the second bracket (410).

6. A film packaging machine according to claim 5, characterized in that: The film covering member (450) comprises a first mounting platform (451) fixed on a second bracket (410), two groups of first guide rods (452) vertically fixed on the first mounting platform (451), and a first lifting platform (453) slidably sleeved on the first guide rods (452), a film covering cylinder (454) for driving the first lifting platform (453) being installed on the first mounting platform (451), and a film covering cylinder (455) and a positioning cylinder (456) being arranged on the lower end surface of the first lifting platform (453).

7. The film packaging machine according to claim 6, characterized in that: The film covering cylinder (455) comprises a cylinder body (4551) fixed on a first lifting platform (453), a resilient retractable punch (4552) being slidably mounted on the lower end of the cylinder body (4551), and a center column (4553) being fixed at the center of the lower end of the cylinder body (4551).

8. The film packaging machine according to claim 1, characterized in that: It also includes a heat shrink unit (500), which is arranged on one side of the discharge unit (100) close to the unloading unit (600), including a third bracket (510), a third lifting platform (520) vertically slidably arranged on the third bracket (510), and a cover (540) fixed on the third lifting platform (520), and channels (541) for the passage of objects (700) are opened at both ends of the cover (540), and a lifting cylinder (530) for driving the third lifting platform (520) is installed on the third bracket (510); A plurality of groups of hot air blowers (550) are installed on the top of the cover shell (540); the output end of the hot air blower (550) is connected to a wind hood (552) via an air duct (551); the wind hood (552) is located inside the cover shell (540); and a plurality of electric heating pipes (560) are symmetrically arranged on both sides of the cover shell (540).

9. The film packaging machine according to claim 1, characterized in that: The loading unit (200) comprises a hopper (210) and a loading platform (250) connected to the inlet end of the conveyor belt (120); a discharge channel (220) is provided at the lower end of the hopper (210); a material shifting block (230) is rotatably mounted on one side of the material shifting channel (220); and a material shifting motor (240) for driving the material shifting block (230) is mounted on the hopper (210); A first flipping channel (260) is connected between the loading platform (250) and the discharge channel (220), and the first flipping channel (260) is used to adjust the object (700) in a lying position to an upright position. A first pushing cylinder (270) is arranged on one side of the discharge channel (220), and the output end of the first pushing cylinder (270) is connected to the first pushing platform (280).

10. The film packaging machine according to claim 9, characterized in that: The unloading unit (600) comprises a fourth bracket (610), a receiving box (620) detachably mounted on the fourth bracket (610), and a second pushing platform (630) arranged on one side of the fourth bracket (610); a unloading channel (640) connected to the outlet end of the conveyor belt (120) is arranged on one side of the second pushing platform (630); a second flipping channel (650) is connected between the unloading channel (640) and the second pushing platform (630); the second flipping channel (650) is used to adjust the object (700) in an upright position to a lying position; A second pushing cylinder (660) is provided at the material discharge channel (640), and the output end of the second pushing cylinder (660) is connected to a second pushing plate (670). A third pushing cylinder (680) is provided on the second pushing platform (630), and the output end of the third pushing cylinder (680) is connected to a third pushing plate (690).

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