Box type transparent film packaging equipment

Abstract

The utility model belongs to the field of packaging equipment, and relates to box type transparent film packaging equipment which comprises a supporting part, a supporting part, a film conveying part and a packaging part. A feeding unit; a film feeding unit; a wire pulling unit; the wire drawing unit is matched with the film feeding unit; the machine head film cutting unit is used for cutting the transparent film with the stay wire conveyed by the film conveying unit; the first film folding unit is used for folding the left side edge of the transparent film which is half coated on the to-be-packaged box up and down; the second film folding unit is used for carrying out side edge folding and side sealing on the front side edge and the rear side edge of the transparent film which is half coated on the to-be-packaged box and folded by the first film folding unit; a post-ironing unit; the device further comprises a power shaft set which is connected to the supporting part. And the machine head film cutting unit and the first film folding unit are respectively matched with the power shaft group. After the structure is adopted, the film folding and cutting device has the beneficial effects that the film folding and cutting synchronization action is realized through a set of integral transmission system, the structure is compact, and the practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging equipment, in particular to a box-type transparent film packaging equipment. Background Art

[0002] Transparent film packaging machine is also called three-dimensional packaging machine or three-dimensional transparent film packaging machine. It uses BOPP film or PVC film as packaging material to form the packaged object into a three-dimensional hexahedron folded package. It is widely used in cosmetics, medicines, food, health care products, audio-visual products, stationery, daily necessities and other transparent film three-dimensional skin packaging outside the box, which plays the role of anti-counterfeiting, moisture-proof, dust-proof and scratch-proof.

[0003] The general working principle of the current three-dimensional packaging machine is as follows: the packaging box is first pushed into the packaging forming channel in the packaging machine by the pushing mechanism. During the pushing process of the packaging box, the film blocking the front of the packaging box is cut off to wrap the paper box, and at the same time, a folding edge is formed by the action of the folding component. The folded paper box is then heat-sealed by the heating plate, and the three-dimensional packaging of the product is completed after heat sealing. The transmission between the film folding part and the film cutting part of the three-dimensional packaging machine in the prior art works independently, and there is no mutual connection between them, and an effective synchronous working effect cannot be formed. Therefore, it is necessary to make improvements. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a box-type transparent film packaging device, which can be adapted to the packaging of box-type transparent films of different sizes.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] As one aspect of the utility model, a box-type transparent film packaging device is provided, which includes: a support portion, the support portion having a workbench;

[0007] A feeding unit, used to deliver the boxes to be packaged to a preset area of ​​the workbench;

[0008] Film feeding unit, used for feeding transparent film;

[0009] The wire drawing unit is used for feeding the wire; the wire drawing unit cooperates with the film feeding unit;

[0010] The head film cutting unit cuts the transparent film with a pull line sent by the film sending unit;

[0011] The first film folding unit folds the left side of the transparent film half-covering the box to be packaged up and down;

[0012] The second film folding unit folds and seals the front and rear sides of the transparent film half-covered on the box to be packaged after being folded by the first film folding unit;

[0013] The post-ironing unit is used to seal and iron the packaging boxes after the second film folding unit;

[0014] It also includes a power shaft group, which is connected to the support part; the head film cutting unit and the first film folding unit are respectively matched with the power shaft group.

[0015] Optionally, the film feeding unit includes a tensioning shaft rotatably connected to the support portion, and the tensioning shaft is used to connect the roll transparent film;

[0016] It also includes a first film guide shaft, a second film guide shaft, a third film guide shaft, a fourth film guide shaft, a fifth film guide shaft and a sixth film guide shaft which are respectively rotatably connected to the support portion from right to left; the center of the fourth film guide shaft and the center of the fifth film guide shaft are on the same horizontal line; the second film guide shaft is located at the lower left of the first film guide shaft, the third film guide shaft is located at the lower left of the second film guide shaft, and the fourth film guide shaft is located at the upper left of the third film guide shaft;

[0017] It also includes a movable film guide shaft, which is slidably connected to the support part and can rotate relative to the support part; the movable film guide shaft is located between the first film guide shaft and the second film guide shaft; the movable film guide shaft is located at the lower right of the second film guide shaft.

[0018] Optionally, the wire pulling unit is slidably connected to the support portion via a wire pulling support seat; a fixed nut block is connected to the wire pulling support seat, and the fixed nut block is slidably connected to the wire pulling adjustment optical axis provided on the support portion; the fixed nut block slides on the wire pulling adjustment optical axis,

[0019] The wire pulling support seat is connected with a cylinder sliding shaft and a knife seat sliding shaft; the cylinder sliding shaft is slidably connected with a cylinder slider; the cylinder slider is connected with a first cylinder; the movable end of the first cylinder is connected with a first cutter seat, the first cutter seat is connected with a wire pulling cutter, and the knife seat sliding shaft is connected with a second cutter seat;

[0020] The cylinder slider is connected to a wire drawing main frame, and a wire drawing shaft is rotatably connected to the wire drawing main frame; a wire drawing brake disc is connected to the wire drawing shaft; a wire pressing wheel bracket is rotatably connected to the wire drawing main frame, and at least two first wire guide wheels are rotatably connected to one side of the wire pressing wheel bracket from top to bottom at intervals; a wire hole is provided on the wire pressing wheel bracket, and the wire hole is located on the side of the uppermost first wire guide wheel; the other side of the wire pressing wheel bracket is connected to a first wire pulling counterweight block; a wire pulling brake pad is connected to the wire pressing wheel bracket close to the first wire pulling counterweight block;

[0021] The wire pulling main frame is rotatably connected to a wire expansion bracket, and the wire expansion bracket is rotatably connected to at least one second wire pulley; the wire expansion bracket is connected to a second wire pulling counterweight block.

[0022] Optionally, the machine head film cutting unit can be lifted up and down relative to the support part, and the machine head film cutting unit comprises a machine head main frame, and the machine head main frame is slidably connected to a machine head guide shaft arranged on the support part through a machine head slider; a machine head lifting block is connected to the machine head main frame, and the machine head lifting block is connected to a machine head lifting screw rod threadedly connected to the support part, and the machine head lifting screw rod is threadedly connected to a machine head lifting nut arranged on the support part, and one end of the machine head lifting screw rod is connected to an operating wheel;

[0023] The head main frame is rotatably connected to a film feeding roller, and the head main frame is rotatably connected to an active film-drawing roller and a passive film-drawing roller, the active film-drawing roller and the passive film-drawing roller move relative to each other, and the roller surface of the active film-drawing roller is tangent to the roller surface of the passive film-drawing roller; one end of the active film-drawing roller is connected to a film shaft synchronous wheel, the head main frame is connected to a servo motor, the output end of the servo motor is connected to a servo synchronous wheel, and the servo synchronous wheel and the film shaft synchronous wheel are connected via a lower film synchronous belt;

[0024] The main frame of the machine head is rotatably connected with a main film cutting knife shaft, and the main film cutting knife shaft is located below the active film pulling roller; the main film cutting knife shaft is provided with a main film cutting knife; the main frame of the machine head is connected with an auxiliary film cutting knife that cooperates with the main film cutting knife;

[0025] It also includes a film absorbing plate, which is connected to the main frame of the machine head; the film absorbing plate is located just below the active film-drawing roller and the passive film-drawing roller.

[0026] Optionally, the first film folding unit includes an upper folding and sealing assembly and a lower folding and sealing assembly, the upper folding and sealing assembly and the lower folding and sealing assembly are respectively located above and below the workbench; the upper folding and sealing assembly includes an upper swing arm shaft bracket connected to the workbench, a long-sealing upper swing arm shaft is rotatably connected to the upper swing arm shaft bracket, a long-sealing upper swing arm is connected to the long-sealing upper swing arm shaft, and a long-sealing ironing plate is connected to the long-sealing upper swing arm;

[0027] The long seal upper swing arm shaft is connected with a long seal lower swing arm, the long seal lower swing arm cooperates with a swing arm unit provided on the support part, and the swing arm unit cooperates with the long seal lower swing arm;

[0028] The lower folding and sealing assembly comprises a long-seal lower folding and sealing shaft rotatably connected to the support portion, the long-seal lower folding and sealing shaft is connected to a long-seal lower folding and sealing swing arm plate, the long-seal lower folding and sealing swing arm plate is connected to a long-seal lower folding and sealing plate, and the long-seal lower folding and sealing shaft is connected to a long-seal lower folding and sealing swing arm;

[0029] The long seal lower fold seal swing arm cooperates with the swing arm unit provided on the support part, and the swing arm unit cooperates with the long seal lower fold seal swing arm;

[0030] Optionally, the swing arm unit includes long seal upper and lower folding sealing shafts rotatably connected to the support part; one end of the long seal upper and lower folding sealing shafts is connected to a long seal upper folding sealing cam, and the other end of the long seal upper and lower folding sealing shafts is connected to a long seal lower folding sealing cam, the long seal upper folding sealing cam and the lower end of the long seal lower swing arm are rotationally coordinated through a roller, and the long seal lower folding sealing cam and the lower end of the long seal lower folding sealing swing arm are rotationally coordinated through a roller.

[0031] Optionally, the power shaft assembly includes a power main shaft rotatably connected to the support portion and a power unit connected to the support portion; one end of the power main shaft is connected to a power main shaft synchronous wheel, the output end of the power unit is connected to a power motor synchronous wheel, and the power main shaft synchronous wheel and the power motor synchronous wheel are connected via a power synchronous belt;

[0032] The power main shaft is connected with a fourth power bevel gear, which is meshed with a fifth power bevel gear provided at one end of the upper and lower folding seal shafts of the long seal; the power main shaft is connected with a sixth power bevel gear,

[0033] One end of the main film cutting shaft of the head film cutting unit is connected to a film cutting shaft synchronous wheel, the support part is rotatably connected to the head film cutting power shaft, the head film cutting power shaft is connected to the head film cutting lower power synchronous wheel, the film cutting shaft synchronous wheel and the head film cutting lower power synchronous wheel are connected through the head film cutting belt.

[0034] The sixth power bevel gear is meshed with the seventh power bevel gear connected to the die head film cutting power shaft.

[0035] Optionally, a pressure plate unit is also included, which includes a pressure plate column arranged on a workbench, a pressure plate bracket slider is slidably connected to the pressure plate column, a long sealing pressure plate bracket is connected to the pressure plate bracket slider, and a long sealing pressure plate is connected to the long sealing pressure plate bracket.

[0036] Optionally, the second film folding unit comprises a first side sealing assembly and a second side sealing assembly which are movably arranged on the support portion at intervals, and the structure of the first side sealing assembly is symmetrical to the structure of the second side sealing assembly; the first side sealing assembly and the second side sealing assembly are respectively slidably connected to the side sealing guide shaft arranged on the support portion through an optical shaft sleeve;

[0037] It also includes a side seal adjustment assembly, through which the first side seal assembly and the second side seal assembly can move; the side seal adjustment assembly includes a side seal screw rod rotatably connected to the support portion, and two screw nuts are threadedly connected to the side seal screw rod, and the two screw nuts are respectively connected to the first side seal assembly and the second side seal assembly, and the two screw nuts are driven by the side seal screw rod to perform relative movement or move toward each other;

[0038] The second side sealing assembly comprises a side sealing movable base plate, and the corresponding optical shaft sleeve and screw nut are connected to the side sealing movable base plate; the side sealing rear base plate is connected to the side sealing movable base plate, and the inner side of the side sealing rear base plate is connected to a side sealing front knife, a side sealing middle folding knife and a side sealing rear folding knife in sequence according to the forward direction of the packaging box; the surface of the side sealing front knife is lower than the surface of the side sealing middle folding knife, and the surface of the side sealing middle folding knife is flush with the surface of the side sealing rear folding knife;

[0039] A stroke cylinder is connected to the side seal rear substrate, and the movable end of the stroke cylinder is connected to a side seal plug angle cylinder head, and a linear guide is connected to the side seal plug angle cylinder head, and the linear guide is slidably connected to a linear guide slider arranged on the side seal rear substrate; the end of the linear guide close to the machine head film cutting unit is connected to a side seal plug angle fixing head, and the side seal plug angle is connected to the side seal plug angle fixing head.

[0040] Optionally, the back ironing unit includes a back ironing cylinder bracket connected to the support part, the back ironing cylinder bracket is connected to a back ironing lifting cylinder, the movable end of the back ironing lifting cylinder is connected to a back ironing lower bracket, the back ironing lower bracket is connected to a back ironing guide shaft, there are two back ironing guide shafts, and the two back ironing guide shafts are symmetrically arranged; the tops of the two back ironing guide shafts are connected to a back ironing screw rod adjustment bracket, and the back ironing upper ironing plate is connected between the two back ironing guide shafts through a back ironing bearing.

[0041] It also includes a rear ironing lower ironing plate, which is connected to the workbench through a rear ironing lower ironing plate bracket; the rear ironing upper ironing plate is connected to a rear ironing upper ironing plate bracket, which is connected to a rear ironing bearing and connected to the rear ironing bearing through the rear ironing upper ironing plate bracket; the rear ironing upper ironing plate bracket is connected to a rear ironing screw, which passes through a corresponding matching hole on the rear ironing screw adjusting bracket and is threadedly connected to a handwheel.

[0042] The beneficial effects of the box-type transparent film packaging equipment of the utility model are specifically embodied in: 1. The synchronous actions of film folding and film cutting are realized through a set of integrated transmission system, and the structure is compact and practical; 2. The distance between the first side sealing component and the second side sealing component is adjusted through the side sealing adjustment component, which can adapt to the needs of box-shaped packaging objects of different sizes and meet the production needs of customers; through the design of the side sealing angle unit, the short side of the transparent film is inserted and folded in advance, so that it is more convenient to enter the first side sealing component and the second side sealing component for side sealing, and the practicality is strong; 3. The swing mechanism composed of the first wire pulling counterweight block and the first wire guide wheel and the swing mechanism composed of the second wire pulling counterweight block and the second wire guide wheel make the wire maintain a high tension, so that the wire can continue to run smoothly and completely without shaking or accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0044] Figure 1 It is a structural stereogram of the box-type transparent film packaging equipment of the utility model;

[0045] Figure 2 This is a structural front view of the box-type transparent film packaging device of the utility model;

[0046] Figure 3 It is a structural three-dimensional side view of the box-type transparent film packaging device of the utility model;

[0047] Figure 4 It is a structural schematic diagram of the power shaft group of the utility model;

[0048] Figure 5 This is a structural stereogram of the box-type transparent film packaging equipment of the utility model without the feeding unit;

[0049] Figure 6 This is a structural front view of the film feeding unit and the wire pulling unit of the utility model;

[0050] Figure 7 It is a structural stereogram of the film feeding unit and the wire pulling unit of the utility model;

[0051] Figure 8 It is a three-dimensional front view of the structure of the wire pulling unit of the utility model;

[0052] Fig. 9 It is a three-dimensional rear view of the structure of the wire pulling unit of the utility model;

[0053] Fig.10 This is a structural three-dimensional front view of the die head film cutting unit of the utility model;

[0054] Fig.11 It is a three-dimensional rear view of the structure of the die head film cutting unit of the utility model;

[0055] Fig.12 It is a structural three-dimensional side view of the film cutting unit of the die head of the utility model;

[0056] Fig.13 It is a structural stereogram of the first film folding unit of the utility model;

[0057] Fig.14 for Figure 4 Partial schematic diagram at point A in the middle;

[0058] Fig.15 for Figure 4 Partial schematic diagram at point B in the middle;

[0059] Fig.16 The structure of the swing arm unit of the utility model is three-dimensional Figure 1 ;

[0060] Fig.17 The structure of the swing arm unit of the utility model is three-dimensional Figure 2 ;

[0061] Fig.18 It is a structural stereogram of the pressing plate unit of the utility model;

[0062] Fig.19 The structure of the second folding unit of the utility model is three-dimensional Figure 1 ;

[0063] Fig. 20 The structure of the second folding unit of the utility model is three-dimensional Figure 2 ;

[0064] Fig.21 It is a structural stereogram of the post-ironing unit of the present invention. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0066] A box-type transparent film packaging device according to an embodiment of the present application, such as Figure 1-Figure 3 and Figure 5 As shown, it comprises: a support part 1, which plays a supporting role, and the support part 1 has a workbench 11;

[0067] The feeding unit 2 is used to deliver the boxes to be packaged to the preset area of ​​the workbench 11; the feeding unit 2 is a conveyor, which is a prior art, and the specific structure is not repeated here;

[0068] A film feeding unit 3, used for feeding transparent film;

[0069] The wire drawing unit 4 is used for feeding the wire; the wire drawing unit 4 cooperates with the film feeding unit 3, and the wire drawing unit 4 covers the wire drawing at a preset position of the transparent film, and the wire drawing is used to make the packaging have anti-counterfeiting and other functions;

[0070] The head film cutting unit 5 cuts the transparent film with the pull line sent by the film sending unit 3. Under the push of the feeding unit 2, the cut transparent film is half-covered on the outer surface of the box to be packaged;

[0071] The first film folding unit 6 folds the left side of the transparent film half-covering the box to be packaged up and down, and the left side is a side perpendicular to the moving direction of the workbench 11;

[0072] The second film folding unit 7 performs side folding and side sealing on the front and rear sides of the transparent film half-covered on the box to be packaged after being folded by the first film folding unit 6, wherein the front and rear sides are parallel to the moving direction of the workbench 11;

[0073] The post-ironing unit 9 performs sealing and ironing on the packaging box after the second film folding unit 7, so that the transparent film is tightened by heat and the surface of the packaging box is coated flatly.

[0074] In one embodiment, if Figure 1 As shown, it also includes a pressing plate unit 10, which presses the transparent film half-wrapped on the box to be packaged, so that the first film folding unit 6 can work more conveniently and prevent the transparent film from shifting when the first film folding unit 6 is working.

[0075] In one embodiment, if Figure 6-Figure 7 As shown, the film feeding unit 3 includes a tensioning shaft 31 rotatably connected to the support portion 1, and the tensioning shaft 31 is used to connect the roll transparent film 32; it also includes a first film guide shaft 33, a second film guide shaft 34, a third film guide shaft 35, a fourth film guide shaft 36, a fifth film guide shaft 37 and a sixth film guide shaft 38 rotatably connected to the support portion 1 from right to left; the center of the fourth film guide shaft 36 and the center of the fifth film guide shaft 37 are on the same horizontal line; the second film guide shaft 34 is located at the lower left of the first film guide shaft 33, the third film guide shaft 35 is located at the lower left of the second film guide shaft 34, and the fourth film guide shaft 36 is located at the upper left of the third film guide shaft 35;

[0076] It also includes a movable film guide shaft 39, which is slidably connected to the support part 1 and can rotate relative to the support part 1; the movable film guide shaft 39 is located between the first film guide shaft 33 and the second film guide shaft 34; the movable film guide shaft 39 is located at the lower right of the second film guide shaft 34; the pulling end of the roll transparent film 32 is sequentially wound around the first film guide shaft 33, the movable film guide shaft 39, the second film guide shaft 34, the third film guide shaft 35, the fourth film guide shaft 36, the fifth film guide shaft 37 and the sixth film guide shaft 38, so that the transparent film is in a pre-tightened state, and the movable film guide shaft 39 enables the transparent film to adjust the pre-tightened state in time during operation.

[0077] In this embodiment, if Figure 8-Figure 9As shown, the wire pulling unit 4 is slidably connected to the support part 1 through a wire pulling support seat 41. In order to make the sliding between the wire pulling support seat 41 and the support part 1 smoother, the wire pulling support seat 41 and the support part 1 are matched by a slide rail and a slider. This is a commonly used technical means in the field of technology and will not be repeated here. A fixed nut block 46 is connected to the wire pulling support seat 41. The fixed nut block 46 is slidably connected to a wire pulling adjustment optical axis 47 provided on the support part 1. The fixed nut block 46 slides on the wire pulling adjustment optical axis 47, thereby realizing the movement of the wire pulling support seat 41 on the support part 1. A first adjustable tightening handle 48 is movably provided on the fixed nut block 46. The first adjustable tightening handle 48 cooperates with the wire pulling adjustment optical axis 47 to realize the relative tightening or loosening between the fixed nut block 46 and the wire pulling adjustment optical axis 47.

[0078] The wire pulling support seat 41 is connected to a cylinder slide shaft 42 and a tool holder slide shaft 43; the tool holder slide shaft 43 is located below the cylinder slide shaft 42; in order to make the cylinder slide shaft 42 and the tool holder slide shaft 43 more stable, a slide shaft fixing plate 44 is connected between the cylinder slide shaft 42 and the tool holder slide shaft 43; a cylinder slider 45 is slidably connected to the cylinder slide shaft 42; a second adjustable tightening handle 49 is movably connected to the cylinder slider 45, and the second adjustable tightening handle 49 cooperates with the cylinder slide shaft 42 to achieve relative tightening or loosening between the cylinder slider 45 and the cylinder slide shaft 42; the cylinder slider 45 is connected to a first cylinder 410, the movable end of the first cylinder 410 faces downward; the movable end of the first cylinder 410 is connected to a first cutter seat 411, the first cutter seat 411 is connected to a wire-drawing cutter 412, the wire-drawing cutter 412 is U-shaped, the cutter seat slide shaft 43 is connected to a second cutter seat 413, the second cutter seat 413 is located directly below the first cutter seat 411, the wire-drawing cutter 412 cuts the transparent film with the wire on the second cutter seat 413, and under the impact of the first cylinder 410, a U-shaped incision is cut on the surface of the transparent film with the wire, so as to facilitate the tearing or pulling of the transparent film on the packaging box;

[0079] The cylinder slider 45 is connected to a main wire drawing frame 414, and a wire drawing shaft 415 is rotatably connected to the main wire drawing frame 414, and the wire drawing shaft 415 is used for installing a reel wire 416; the end of the wire drawing shaft 415 is detachably connected to a wire drawing top plate 417 for limiting the reel wire 416, and the wire drawing top plate 417 is connected through a wire drawing shaft retaining ring 418;

[0080] The wire drawing shaft 415 is connected to a wire drawing brake disc 419; a wire pressing wheel bracket 420 is rotatably connected to the wire drawing main frame 414, and the wire pressing wheel bracket 420 is in an inverted L shape, and one side of the wire pressing wheel bracket 420 is rotatably connected to at least two first wire wheels 421 at intervals from top to bottom. As an example, the number of first wire wheels 421 in this embodiment is three; a wire hole 427 is provided on the wire pressing wheel bracket 420, and the wire hole 427 is located on the side of the top first wire wheel 421; the other side of the wire pressing wheel bracket 420 is connected to a first wire drawing counterweight block 422, and the weight comparison between the first wire drawing counterweight block 422 and the first wire wheel 421 is used to realize the swing of the wire pressing wheel bracket 420 on the wire drawing bracket 414; a wire pulling brake pad 423 is connected to the wire pressing wheel bracket 420 near the first wire pulling counterweight block 422, and the wire pulling brake pad 423 cooperates with the wire pulling brake disc 419 to realize the stopping or rotation of the wire drawing shaft 415;

[0081] The main wire pulling frame 414 is rotatably connected to a wire expansion bracket 424, and the wire expansion bracket 424 is rotatably connected to at least one second wire wheel 425. As an example, in this embodiment, the number of the second wire wheels 425 is two; the three first wire wheels 421 and the two second wire wheels 425 are in the same plane, and the three first wire wheels 421 and the two second wire wheels 425 are arranged in an alternating manner, so that the wire is wound and the wire is tightened; the wire expansion bracket 424 is connected to a second wire pulling counterweight block 426, and the second wire pulling counterweight block 426 is used to tighten the wire. 6 and the second wire wheel 425, the wire expansion bracket 424 is swung on the wire pulling bracket 414; the wire pulling can be kept in a tensioned state in time during operation through the first wire wheel 421 on the wire pressing wheel bracket 420 and the second wire wheel 425 on the wire expansion bracket 424; the pulled-out end on the reel wire 416 passes through the wire hole 427, and is wound in sequence between the staggered first wire wheel 421 and the second wire wheel 425, and finally fits with the transparent film on the fourth film guide shaft 36 and the fifth film guide shaft 37 and enters the next process together with the transparent film.

[0082] In the present embodiment, the swing mechanism composed of the first wire pulling counterweight block 422 and the first wire pulley 421 and the swing mechanism composed of the second wire pulling counterweight block 426 and the second wire pulley 425 can maintain a relatively high tension on the wire, so that the wire can continue to be smoothly and completely routed without problems such as shaking or accumulation; the sliding connection between the fixed nut block 46 and the wire pulling adjustment optical axis 47 provided on the support portion can adapt to the adjustment of different positions of the wire pulling package, and it is very convenient to move or replace, thereby reducing the installation and adjustment time; the design of the wire pulling brake pad 423 and the wire pulling brake disc 419 can further improve the stability of the wire pulling routing, reduce the failure rate of the wire pulling process, and better adapt to various film lowering environments.

[0083] In one embodiment, if Figure 10-12 As shown, the head film cutting unit 5 can be lifted up and down relative to the support part 1, and the head film cutting unit 5 includes a head main frame 51, and the head main frame 51 is slidably connected with the head guide shaft 53 arranged on the support part 1 through the head slider 52, so as to realize the lifting and lowering of the head film cutting unit 5; the head slider 52 is movably connected with a third adjustable tightening handle 531, which is used for relative tightening or loosening of the head slider 52; the head main frame 51 is connected with a head lifting block 541, and the head lifting block 541 is connected to a head lifting screw 54 threadedly connected to the support part 1, and the head lifting screw 54 is threadedly connected to a head lifting nut 542 arranged on the support part 1, and one end of the head lifting screw 54 is connected to an operating wheel 543; through the operation of the head lifting screw 54, the movement of the head lifting block 541 is driven, thereby realizing the lifting and lowering of the head film cutting unit 5. It should be noted that during the lifting process, the third adjustable tightening handle 531 is in a loosened state.

[0084] Furthermore, the machine head main frame 51 is rotatably connected to a film feed roller 55, and the machine head main frame 51 is rotatably connected to a film pulling active roller 56 and a film pulling passive roller 57, the film pulling active roller 56 and the film pulling passive roller 57 move relative to each other, and the roller surface of the film pulling active roller 56 and the roller surface of the film pulling passive roller 57 are tangent to each other, so as to facilitate pulling the transparent film to a preset area; one end of the film pulling active roller 56 is connected to a film shaft synchronous wheel 58, and the machine head main frame 51 is connected to a servo motor 59, and the output end of the servo motor 59 is connected to a reducer 510, and the input end of the reducer 510 is connected to the output end of the servo motor 59, and the output end of the reducer 510 is connected to a servo synchronous wheel 511, and the servo synchronous wheel 511 and the film shaft synchronous wheel 58 are connected through a lower film synchronous belt 512; during the rotation of the film pulling active roller 56, the film pulling passive roller 57 is rotated to realize pulling the transparent film from the film feed roller 55 to the preset area;

[0085] The main film cutting knife shaft 513 is rotatably connected to the head main frame 51, and the main film cutting knife shaft 513 is located below the film pulling active roller 56; the main film cutting knife shaft 513 is provided with a main film cutting knife 514; the head main frame 51 is connected to an auxiliary film cutting knife 515 that cooperates with the main film cutting knife 514, and the main film cutting knife 514 cooperates with the auxiliary film cutting knife 515 after rotating one circle to cut the transparent film between the main film cutting knife 514 and the auxiliary film cutting knife 515 to enter the next process; one end of the main film cutting knife shaft 513 is connected to a film cutting shaft synchronous wheel 11114, and the support part 1 is rotatably connected to a head film cutting power shaft 11115, and the head film cutting power shaft 11115 is connected to a head film cutting lower power synchronous wheel 11116, and the film cutting shaft synchronous wheel 11114 and the head film cutting lower power synchronous wheel 11116 are connected by a head film cutting belt 11117. Fig.15As shown;

[0086] It also includes a film absorbing plate 516, which is connected to the main frame 51 of the machine head; the film absorbing plate 516 is located directly below the active film-drawing roller 56 and the passive film-drawing roller 57, and the film absorbing plate 516 absorbs the transparent film pulled down by the active film-drawing roller 56 and the passive film-drawing roller 57 by blowing up and absorbing the transparent film, and leads it to a preset area;

[0087] The film guide assembly 517 is also included, and the film guide assembly 517 guides the transparent film; the film guide assembly 517 is located between the active film-drawing roller 56 and the passive film-drawing roller 57; the active film-drawing roller 56 and the passive film-drawing roller 57 are respectively provided with a clearance groove 518 for the film guide assembly 517 to make way; the film guide assembly 517 includes a first film blowing guide tube 519 and a second film blowing guide tube 520 arranged at intervals on the head main frame 51, and a channel for the transparent film to pass through is formed between the first film blowing guide tube 519 and the second film blowing guide tube 520; the first film blowing guide tube 519 and the second film blowing guide tube 520 form a channel for the transparent film to pass through; the first film blowing guide tube 5 19 and the second film blowing guide tube 520 blow air to guide the transparent film so that the transparent film is in a straight state; the transparent film is pulled down from the film feeding roller 55 under the action of the active film pulling roller 56 and the passive film pulling roller 57, and enters the preset area under the joint action of the film guiding component 517 and the film suction plate 516, and then after the packaging box is pushed in, the transparent film covers the packaging box, and the main film cutting knife 514 rotates a circle and cooperates with the auxiliary film cutting knife 515 to cut off the transparent film covering the packaging box between the main film cutting knife 514 and the auxiliary film cutting knife 515, so that it enters the next process.

[0088] In one embodiment, if Fig.13 , Fig.16 and Fig.17 As shown, the first film folding unit 6 includes an upper folding and sealing component 61 and a lower folding and sealing component 62, and the upper folding and sealing component 61 and the lower folding and sealing component 62 are respectively located above and below the workbench 11; the upper folding and sealing component 61 and the lower folding and sealing component 62 respectively fold the left side of the transparent film half-wrapped on the box to be packaged up and down, so that the left side of the transparent film is in a folded and sealed state; the upper folding and sealing component 61 includes an upper swing arm shaft bracket 611 connected to the workbench 11, and a long sealing upper swing arm shaft 612 is rotatably connected to the upper swing arm shaft bracket 611, and a long sealing upper swing arm 613 is connected to the long sealing upper swing arm shaft 612, and a long sealing upper swing arm 613 is connected to the long sealing upper swing arm 613. A long sealing heating tube seat 614 is connected to the long sealing heating tube seat 614, and a long sealing ironing plate 615 is connected to the long sealing heating tube seat 614, and the long sealing ironing plate 615 is heated by the long sealing heating tube seat 614; it should be noted that the long sealing heating tube seat 614 is connected to the heating device, which will not be repeated;

[0089] The long seal upper swing arm shaft 612 is connected with a long seal lower swing arm 616, and the long seal lower swing arm 616 cooperates with the swing arm unit 8 provided on the support part 1, and the swing arm unit 8 cooperates with the long seal lower swing arm 616. When the swing arm unit 8 works, it drives the long seal lower swing arm 616 to rotate with the long seal upper swing arm shaft 612 as a fulcrum, so that the long seal ironing plate 615 swings up and down relative to the workbench 11, so that the long seal ironing plate 615 folds and seals the left film of the transparent film;

[0090] The lower folding and sealing assembly 62 comprises a long-seal lower folding and sealing shaft 621 rotatably connected to the support part 1, a long-seal lower folding and sealing swing arm plate 622 is connected to the long-seal lower folding and sealing swing arm plate 622, a long-seal lower folding and sealing plate 623 is connected to the long-seal lower folding and sealing swing arm plate 622, and a long-seal folding film giving way groove for the long-seal ironing plate 615 and the long-seal lower folding and sealing plate 623 to give way is provided on the workbench 11; the long-seal lower folding and sealing shaft 621 is connected to the long-seal lower folding and sealing swing arm 625;

[0091] The long seal lower folding sealing swing arm 625 cooperates with the swing arm unit 8 provided on the support part 1, and the swing arm unit 8 cooperates with the long seal lower folding sealing swing arm 625. When the swing arm unit 8 works, it drives the long seal lower folding sealing swing arm 625 to rotate, so that the long seal lower folding sealing plate 623 swings up and down relative to the workbench 11 with the long seal lower folding sealing shaft 621 as the fulcrum, so that the long seal lower folding sealing plate 623 folds up the left film of the transparent film;

[0092] The swing arm unit 8 includes a long seal upper and lower folding sealing shaft 81 rotatably connected to the support part 1; one end of the long seal upper and lower folding sealing shaft 81 is connected to a long seal upper folding sealing cam 82, and the other end of the long seal upper and lower folding sealing shaft 81 is connected to a long seal lower folding sealing cam 83, the long seal upper folding sealing cam 82 and the lower end of the long seal lower swing arm 616 are rotated and matched through rollers, and the long seal lower folding sealing cam 83 and the lower end of the long seal lower folding sealing swing arm 625 are rotated and matched through rollers. When the swing arm unit 8 works, it drives the long seal upper and lower folding sealing shaft 81 to rotate, and the long seal lower folding sealing cam 83 of the long seal upper and lower folding sealing shaft 81 is rotated first Cooperating with the long seal lower folding and sealing swing arm 625, the long seal lower folding and sealing plate 623 folds up the left film of the transparent film, and after rotating to a preset angle, the long seal lower folding and sealing plate 623 returns to its original position, and then the long seal upper folding and sealing cam 82 of the long seal upper and lower folding and sealing shaft 81 cooperates with the long seal lower swing arm 616, and the long seal ironing plate 615 folds and seals the left film of the transparent film, and then after rotating to a preset angle, the long seal lower swing arm 616 returns to its original position, and through the interval cooperation of the long seal lower folding and sealing cam 83 and the long seal upper folding and sealing cam 82, the long seal lower folding and sealing plate 623 and the long seal ironing plate 615 alternately act to realize the folding and sealing of the left film of the transparent film;

[0093] like Figure 4As shown, it also includes a power shaft group 111, and the power shaft group 111 is connected to the support part 1; the power shaft group 111 includes a power main shaft 1111 rotatably connected to the support part 1 and a power unit 1112 connected to the support part 1, and the power unit 1112 includes but is not limited to a drive motor, which is a prior art and is not repeated here; one end of the power main shaft 1111 is connected to a power main shaft synchronous wheel 1113, and the output end of the power unit 1112 is connected to a power motor synchronous wheel 1114, and the power main shaft synchronous wheel 1113 and the power motor synchronous wheel 1114 are connected by a power synchronous belt 1115 to realize power transmission;

[0094] The power main shaft 1111 is connected to a fourth power bevel gear 11111, which meshes with a fifth power bevel gear 11112 provided at one end of the long seal upper and lower folding seal shaft 81; the power main shaft 1111 is connected to a sixth power bevel gear 11113,

[0095] One end of the film cutting main blade shaft 513 is connected to a film cutting shaft synchronous wheel 11114, the support part 1 is rotatably connected to a head film cutting power shaft 11115, the head film cutting power shaft 11115 is connected to a head film cutting lower power synchronous wheel 11116, the film cutting shaft synchronous wheel 11114 and the head film cutting lower power synchronous wheel 11116 are connected via a head film cutting belt 11117.

[0096] The sixth power bevel gear 11113 is meshed with the seventh power bevel gear 11118 connected to the film cutting power shaft 11115 of the machine head. In this embodiment, the loading, film cutting, long sealing and upper and lower folding sealing of the film are realized through a power shaft group 111, and the integrity is good.

[0097] During operation, the lower folding and sealing component 62 first folds up the left side of the transparent film, and then the upper folding and sealing component 61 operates to fold and seal the left side of the transparent film through the long sealing ironing plate 615 .

[0098] In order to prevent the transparent film from deflecting when the first film folding unit 6 is in operation, the pressing plate unit 10 presses the packaging box and the transparent film. Fig.18As shown, the pressure plate unit 10 includes a pressure plate column 101 arranged on the workbench 11, and a pressure plate support slider 102 is slidably connected to the pressure plate column 101, and a fourth adjustable tightening handle 103 is movably connected to the pressure plate support slider 102, and the fourth adjustable tightening handle 103 cooperates with the pressure plate column 101 to tighten or loosen the pressure plate support slider 102 on the pressure plate column 101; a long sealing pressure plate bracket 104 is connected to the pressure plate support slider 102, and a long sealing pressure plate 105 is connected to the long sealing pressure plate bracket 104, and the pressure plate bracket slider 102 is moved to a preset position, and then the fourth adjustable tightening handle 103 is tightened, so that the long sealing pressure plate 105 presses the packaging box and the transparent film, which facilitates the operation of the first folding unit 6.

[0099] In one embodiment, if Figure 19-20 As shown, the second film folding unit 7 comprises a first side sealing assembly 71 and a second side sealing assembly 72 which are movably arranged on the support portion 1 at intervals, and the structure of the first side sealing assembly 71 is symmetrical to the structure of the second side sealing assembly 72; the first side sealing assembly 71 and the second side sealing assembly 72 are respectively slidably connected to a side sealing guide shaft 74 arranged on the support portion 1 through an optical shaft sleeve 73;

[0100] It also includes a side seal adjustment component 75, through which the first side seal component 71 and the second side seal component 72 can move; the side seal adjustment component 75 includes a side seal screw rod 751 rotatably connected to the support portion 1, and two screw nuts 752 are threadedly connected to the side seal screw rod 751, and the two screw nuts 752 are respectively connected to the first side seal component 71 and the second side seal component 72. The two screw nuts 752 are driven by the side seal screw rod 751 to move relative to or towards each other, so as to achieve the first side seal component 71 and the second side seal component 72 to move closer to or farther away from each other;

[0101] The second side sealing assembly 72 includes a side sealing movable base plate 721. For easy installation, the corresponding optical shaft sleeve 73 and the screw nut 752 are connected to the side sealing movable base plate 721, and the optical shaft sleeve 73 and the screw nut 752 are uniformly moved through the side sealing movable base plate 721; the side sealing rear base plate 722 is connected to the side sealing movable base plate 721, and the inner side of the side sealing rear base plate 722 is sequentially connected with a side sealing front knife 723, a side sealing middle folding knife 724 and a side sealing rear folding knife 725 in the direction of the package box moving forward; the surface of the side sealing front knife 723 is lower than the surface of the side sealing middle folding knife 724, and the surface of the side sealing middle folding knife 724 is flush with the surface of the side sealing rear folding knife 725; the intersection of the side sealing front knife 723, the side sealing middle folding knife 724 and the side sealing rear folding knife 725 forms a folding matching part, and the side folding of the transparent film is realized by the folding matching part, which is a prior art and will not be repeated;

[0102] The side sealing rear substrate 722 is movably connected with a side sealing rear ironing plate heating block 740, which is located on the right side of the side sealing rear folding knife 725; the side sealing rear ironing plate heating block 740 is connected with a side sealing rear ironing plate 726 for side sealing of the side folding of the transparent film; the side sealing rear ironing plate 726 and the side sealing rear folding knife 725 are matched with each other through a stepped boss and a stepped groove; it should be noted that the side sealing rear ironing plate heating block 740 is connected to the heating device and will not be repeated; the side sealing rear ironing plate heating block 740 is connected with a side sealing cylinder guide shaft 727, and the side sealing cylinder guide shaft 727 slides with a linear bearing 728 provided on the side sealing rear substrate 722 The side sealing rear substrate 722 is provided with a side sealing cylinder 729, and the movable end of the side sealing cylinder 729 is connected to the side sealing rear ironing plate heating block 740. The side sealing cylinder 729 is actuated to drive the side sealing rear ironing plate heating block 740 to move inward or outward, so that the side sealing rear ironing plate 726 can seal the side folding edge of the transparent film on the workbench 11 or move away from the workbench 11; the side sealing rear substrate 722 or the side sealing middle folding knife 724 is connected with a side sealing rear pressing plate 730, and a packaging box conveying channel is formed between the side sealing rear pressing plate 730 and the workbench 11; the input end of the side sealing rear pressing plate 730 is tilted upward to form a tilting portion 731, which is convenient for conveying the packaging box;

[0103] The side-sealing rear substrate 722 is connected to a stroke cylinder 732, and the movable end of the stroke cylinder 732 is connected to a side-sealing angle cylinder head 734, and the side-sealing angle cylinder head 734 is connected to a linear guide rail 735, and the linear guide rail 735 is slidably connected to a linear guide rail slider 736 provided on the side-sealing rear substrate 722; the end of the linear guide rail 735 close to the machine head film cutting unit 5 is connected to a side-sealing angle fixing head 737, and the side-sealing angle fixing head 737 is connected to an angle bracket 738, and the angle bracket 738 is connected to a side-sealing angle 739, and the side-sealing angle 739 folds the side edge of the transparent film processed by the first film folding unit 6, and the folded transparent film enters the second film folding unit 7 for edge folding processing, and then side-sealed through the side-sealing rear ironing plate 726.

[0104] In one embodiment, if Fig.21 As shown, the back ironing unit 9 includes a back ironing cylinder bracket 91 connected to the support part 1, the back ironing cylinder bracket 91 is connected to a back ironing lifting cylinder 92, the movable end of the back ironing lifting cylinder 92 is connected to a back ironing lower bracket 93, the back ironing lower bracket 93 is connected to a back ironing guide shaft 94, there are two back ironing guide shafts 94, and the two back ironing guide shafts 94 are symmetrically arranged; the tops of the two back ironing guide shafts 94 are connected to a back ironing screw rod adjustment bracket 95, and the two back ironing guide shafts 94 are connected to a back ironing upper ironing plate 97 through a back ironing bearing 96.

[0105] The back ironing plate 97 is connected to a back ironing plate bracket 910, which is connected to the back ironing bearing 96, and is connected to the back ironing bearing 96 through the back ironing plate bracket 910, so as to facilitate the installation of the back ironing plate 97; the back ironing plate bracket 910 is connected to a back ironing screw 911, which passes through the back ironing screw 911. The corresponding matching hole on the ironing screw rod adjustment bracket 95 is rear-threadedly connected with a handwheel 912, and the handwheel 912 cooperates with the rear ironing screw rod 911 to achieve the height adjustment of the rear ironing upper ironing plate 97; it should be noted that the rear ironing upper ironing plate 97 and the rear ironing lower ironing plate 98 are respectively connected to the heating device, which will not be repeated; the rear ironing lifting cylinder 92 works, and the rear ironing upper ironing plate 97 is moved closer to the rear ironing lower ironing plate 98 through the rear ironing guide shaft 94, so as to heat-seal the transparent film of the packaging box on the rear ironing lower ironing plate 98.

[0106] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0107] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0108] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0109] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0110] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0111] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0112] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A box-type transparent film packaging device, characterized in that: It includes: A support portion, wherein the support portion has a workbench; A feeding unit, used to deliver the boxes to be packaged to a preset area of ​​the workbench; Film feeding unit, used for feeding transparent film; A wire drawing unit, used for feeding the wire; The wire drawing unit cooperates with the film feeding unit; The head film cutting unit cuts the transparent film with a pull line sent by the film sending unit; The first film folding unit folds the left side of the transparent film half-covering the box to be packaged up and down; The second film folding unit folds and seals the front and rear sides of the transparent film half-covered on the box to be packaged after being folded by the first film folding unit; The post-ironing unit is used to seal and iron the packaging boxes after the second film folding unit; It also includes a power shaft group, which is connected to the support part; the head film cutting unit and the first film folding unit are respectively matched with the power shaft group.

2. The box-type transparent film packaging equipment according to claim 1, characterized in that: The film feeding unit comprises a tensioning shaft rotatably connected to the support portion, and the tensioning shaft is used to connect the roll transparent film; It also includes a first film guide shaft, a second film guide shaft, a third film guide shaft, a fourth film guide shaft, a fifth film guide shaft and a sixth film guide shaft which are respectively rotatably connected to the support portion from right to left; the center of the fourth film guide shaft and the center of the fifth film guide shaft are on the same horizontal line; the second film guide shaft is located at the lower left of the first film guide shaft, the third film guide shaft is located at the lower left of the second film guide shaft, and the fourth film guide shaft is located at the upper left of the third film guide shaft; It also includes a movable film guide shaft, which is slidably connected to the support part and can rotate relative to the support part; the movable film guide shaft is located between the first film guide shaft and the second film guide shaft; the movable film guide shaft is located at the lower right of the second film guide shaft.

3. The box-type transparent film packaging equipment according to claim 2, characterized in that: The wire pulling unit is slidably connected to the support part through the wire pulling support seat; the wire pulling support seat is connected with a fixed nut block, and the fixed nut block is slidably connected to the wire pulling adjustment optical axis arranged on the support part; the fixed nut block slides on the wire pulling adjustment optical axis, The wire pulling support seat is connected with a cylinder sliding shaft and a knife seat sliding shaft; the cylinder sliding shaft is slidably connected with a cylinder slider; the cylinder slider is connected with a first cylinder; the movable end of the first cylinder is connected with a first cutter seat, the first cutter seat is connected with a wire pulling cutter, and the knife seat sliding shaft is connected with a second cutter seat; The cylinder slider is connected to a wire drawing main frame, and a wire drawing shaft is rotatably connected to the wire drawing main frame; a wire drawing brake disc is connected to the wire drawing shaft; a wire pressing wheel bracket is rotatably connected to the wire drawing main frame, and at least two first wire guide wheels are rotatably connected to one side of the wire pressing wheel bracket from top to bottom at intervals; a wire hole is provided on the wire pressing wheel bracket, and the wire hole is located on the side of the uppermost first wire guide wheel; the other side of the wire pressing wheel bracket is connected to a first wire pulling counterweight block; a wire pulling brake pad is connected to the wire pressing wheel bracket close to the first wire pulling counterweight block; The wire pulling main frame is rotatably connected to a wire expansion bracket, and the wire expansion bracket is rotatably connected to at least one second wire pulley; the wire expansion bracket is connected to a second wire pulling counterweight block.

4. The box-type transparent film packaging equipment according to claim 1, characterized in that: The head film cutting unit can be lifted up and down relative to the support part, and the head film cutting unit includes a head main frame, and the head main frame is slidably connected to the head guide shaft arranged on the support part through the head slider; the head main frame is connected to a head lifting block, and the head lifting block is connected to a head lifting screw rod threadedly connected to the support part, and the head lifting screw rod is threadedly connected to a head lifting nut arranged on the support part, and one end of the head lifting screw rod is connected to an operating wheel; The head main frame is rotatably connected to a film feeding roller, and the head main frame is rotatably connected to an active film-drawing roller and a passive film-drawing roller, the active film-drawing roller and the passive film-drawing roller move relative to each other, and the roller surface of the active film-drawing roller is tangent to the roller surface of the passive film-drawing roller; one end of the active film-drawing roller is connected to a film shaft synchronous wheel, the head main frame is connected to a servo motor, the output end of the servo motor is connected to a servo synchronous wheel, and the servo synchronous wheel and the film shaft synchronous wheel are connected via a lower film synchronous belt; The main frame of the machine head is rotatably connected with a main film cutting knife shaft, and the main film cutting knife shaft is located below the active film pulling roller; the main film cutting knife shaft is provided with a main film cutting knife; the main frame of the machine head is connected with an auxiliary film cutting knife that cooperates with the main film cutting knife; It also includes a film absorbing plate, which is connected to the main frame of the machine head; the film absorbing plate is located just below the active film-drawing roller and the passive film-drawing roller.

5. The box-type transparent film packaging equipment according to claim 1, characterized in that: The first film folding unit comprises an upper folding and sealing assembly and a lower folding and sealing assembly, wherein the upper folding and sealing assembly and the lower folding and sealing assembly are respectively located above and below the workbench; the upper folding and sealing assembly comprises an upper swing arm shaft bracket connected to the workbench, a long-sealing upper swing arm shaft is rotatably connected to the upper swing arm shaft bracket, a long-sealing upper swing arm is connected to the long-sealing upper swing arm shaft, and a long-sealing ironing plate is connected to the long-sealing upper swing arm; The long seal upper swing arm shaft is connected with a long seal lower swing arm, the long seal lower swing arm cooperates with a swing arm unit provided on the support part, and the swing arm unit cooperates with the long seal lower swing arm; The lower folding and sealing assembly comprises a long-seal lower folding and sealing shaft rotatably connected to the support portion, the long-seal lower folding and sealing shaft is connected to a long-seal lower folding and sealing swing arm plate, the long-seal lower folding and sealing swing arm plate is connected to a long-seal lower folding and sealing plate, and the long-seal lower folding and sealing shaft is connected to a long-seal lower folding and sealing swing arm; The long-seal lower folding seal swing arm cooperates with a swing arm unit arranged on the supporting part, and the swing arm unit cooperates with the long-seal lower folding seal swing arm.

6. The box-type transparent film packaging equipment according to claim 5, characterized in that: The swing arm unit includes a long seal upper and lower folding sealing shaft rotatably connected to the support part; one end of the long seal upper and lower folding sealing shaft is connected to a long seal upper folding sealing cam, and the other end of the long seal upper and lower folding sealing shaft is connected to a long seal lower folding sealing cam, the long seal upper folding sealing cam and the lower end of the long seal lower swing arm are rotationally matched through a roller, and the long seal lower folding sealing cam and the lower end of the long seal lower folding sealing swing arm are rotationally matched through a roller.

7. The box-type transparent film packaging equipment according to claim 6, characterized in that: The power shaft assembly includes a power main shaft rotatably connected to the support portion and a power unit connected to the support portion; one end of the power main shaft is connected to a power main shaft synchronous wheel, the output end of the power unit is connected to a power motor synchronous wheel, and the power main shaft synchronous wheel and the power motor synchronous wheel are connected through a power synchronous belt; The power main shaft is connected with a fourth power bevel gear, which is meshed with a fifth power bevel gear provided at one end of the upper and lower folding seal shafts of the long seal; the power main shaft is connected with a sixth power bevel gear, One end of the main film cutting shaft of the head film cutting unit is connected to a film cutting shaft synchronous wheel, the support part is rotatably connected to the head film cutting power shaft, the head film cutting power shaft is connected to the head film cutting lower power synchronous wheel, the film cutting shaft synchronous wheel and the head film cutting lower power synchronous wheel are connected through the head film cutting belt. The sixth power bevel gear is meshed with the seventh power bevel gear connected to the die head film cutting power shaft.

8. The box-type transparent film packaging equipment according to claim 1, characterized in that: It also includes a pressure plate unit, which includes a pressure plate column arranged on a workbench, a pressure plate bracket slider is slidably connected to the pressure plate column, a long sealing pressure plate bracket is connected to the pressure plate bracket slider, and a long sealing pressure plate is connected to the long sealing pressure plate bracket.

9. The box-type transparent film packaging equipment according to claim 1, characterized in that: The second film folding unit comprises a first side sealing assembly and a second side sealing assembly which are movably arranged on the support portion at intervals, and the structure of the first side sealing assembly is symmetrical to the structure of the second side sealing assembly; the first side sealing assembly and the second side sealing assembly are respectively slidably connected to the side sealing guide shaft arranged on the support portion through an optical shaft sleeve; It also includes a side seal adjustment assembly, through which the first side seal assembly and the second side seal assembly can move; the side seal adjustment assembly includes a side seal screw rod rotatably connected to the support portion, and two screw nuts are threadedly connected to the side seal screw rod, and the two screw nuts are respectively connected to the first side seal assembly and the second side seal assembly, and the two screw nuts are driven by the side seal screw rod to perform relative movement or move toward each other; The second side sealing assembly comprises a side sealing movable base plate, and the corresponding optical shaft sleeve and screw nut are connected to the side sealing movable base plate; the side sealing rear base plate is connected to the side sealing movable base plate, and the inner side of the side sealing rear base plate is connected to a side sealing front knife, a side sealing middle folding knife and a side sealing rear folding knife in sequence according to the forward direction of the packaging box; the surface of the side sealing front knife is lower than the surface of the side sealing middle folding knife, and the surface of the side sealing middle folding knife is flush with the surface of the side sealing rear folding knife; A stroke cylinder is connected to the side seal rear substrate, and the movable end of the stroke cylinder is connected to a side seal plug angle cylinder head, and a linear guide is connected to the side seal plug angle cylinder head, and the linear guide is slidably connected to a linear guide slider arranged on the side seal rear substrate; the end of the linear guide close to the machine head film cutting unit is connected to a side seal plug angle fixing head, and the side seal plug angle is connected to the side seal plug angle fixing head.

10. The box-type transparent film packaging equipment according to claim 1, characterized in that: The back ironing unit comprises a back ironing cylinder bracket connected to the support part, the back ironing cylinder bracket is connected to a back ironing lifting cylinder, the movable end of the back ironing lifting cylinder is connected to a back ironing lower bracket, the back ironing lower bracket is connected to a back ironing guide shaft, there are two back ironing guide shafts, and the two back ironing guide shafts are symmetrically arranged; the tops of the two back ironing guide shafts are connected to a back ironing screw rod adjustment bracket, and a back ironing upper ironing plate is connected between the two back ironing guide shafts through a back ironing bearing. It also includes a rear ironing lower ironing plate, which is connected to the workbench through a rear ironing lower ironing plate bracket; the rear ironing upper ironing plate is connected to a rear ironing upper ironing plate bracket, which is connected to a rear ironing bearing and connected to the rear ironing bearing through the rear ironing upper ironing plate bracket; the rear ironing upper ironing plate bracket is connected to a rear ironing screw, which passes through a corresponding matching hole on the rear ironing screw adjusting bracket and is threadedly connected to a handwheel.

Images