A fully automatic packaging production line for protective film

Abstract

The present invention discloses a protective film fully automatic packaging production line, comprising a protective film feeding part, a packaging film feeding part, a packaging part and a finished product conveying part, wherein the packaging film feeding part is fixed to the head end of the packaging part, the protective film feeding part is fixed to one side of the packaging part, and the output end of the protective film feeding part is connected to the middle part of the packaging part, and the finished product conveying part is fixed to the output end of the packaging part; the protective film feeding part comprises a feeding belt conveyor 1, a suction belt conveyor, a feeding belt conveyor 2 and a conveying belt conveyor, and the feeding belt conveyor 1, the suction belt conveyor, the feeding belt conveyor 2 and the conveying belt conveyor are sequentially connected end to end; the present invention has a high degree of automation, realizes continuous packaging of protective films, saves labor, improves production efficiency, reduces enterprise production costs, and has good market application value.

Description

Technical Field

[0001] The invention relates to the field of automatic packaging, and in particular to a fully automatic packaging production line for protective films. Background Art

[0002] The protective film is the most popular advanced protective mask for electronic products with display screens, such as mobile phone protective film and IPAD protective film. The protective film plays an important role in protecting our mobile phones and IPADs, and has better anti-fingerprint and anti-oil effects. Moreover, the protective film can be regarded as the second external screen of the mobile phone. If the mobile phone falls, the protective film can absorb certain damage and reduce the probability of broken screen. The protective film needs to be packaged and put into the pearl cotton packaging bag to prevent scratches and damage during transportation. In the existing production and packaging process of protective film, manual packaging is mostly used, that is, the protective film is put into the prepared protective bag, which has low automation, low efficiency, uneven packaging quality, and no continuous packaging.

[0003] The existing technology has defects and needs to be improved. Summary of the invention

[0004] In order to solve the defects of existing technologies, the present invention provides a protective film fully automatic packaging production line.

[0005] The technical document provided by the present invention is a protective film fully automatic packaging production line, comprising a protective film feeding part, a packaging film feeding part, a packaging part and a finished product conveying part, wherein the packaging film feeding part is fixed to the head end of the packaging part, the protective film feeding part is fixed to one side of the packaging part, and the output end of the protective film feeding part is connected to the middle part of the packaging part, and the finished product conveying part is fixed to the output end of the packaging part; the protective film feeding part comprises a feeding belt conveyor 1, a suction belt conveyor, a feeding belt conveyor 2 and a conveying belt conveyor, the feeding belt conveyor 1, the suction belt conveyor, the feeding belt conveyor 2 and the conveying belt conveyor are connected end to end in sequence, and the conveying belt conveyor is perpendicular to the feeding belt conveyor 2 on a horizontal plane, the conveying belt conveyor is connected to the packaging part, and a material limiting device is arranged at the head end of the feeding belt conveyor 2, The material limiting device is used to limit the protective film to pass through one sheet at a time; a plurality of blocks are arranged at equal intervals on the synchronous belt of the conveyor belt machine, and the blocks are used to drive the protective film; a support frame is arranged at the tail of the conveyor belt machine, and a packaging film folded on one side is passed through the front end of the support frame, which is used to open the packaging film folded on one side to facilitate the protective film to enter the packaging film; the packaging film feeding part is used to output the packaging film folded on one side; the packaging part includes a packaging film conveyor belt machine, a hot pressing device and a slitting device; the hot pressing device is arranged at the front section of the packaging film conveyor belt machine, and the slitting device is arranged at the rear section of the packaging film conveyor belt machine; the hot pressing device is used to partially hot press the packaging film folded on one side to form continuous pockets, and the slitting device is used to slit the pockets; the finished product conveying part is used to convey the packaged protective film.

[0006] Preferably, the material limiting device includes a material limiting bracket, a material limiting motor, a material limiting shaft, a material limiting roller and a material limiting sheet. The material limiting bracket is fixed to the head end of the second feeding belt conveyor, the material limiting shaft is fixed to the material limiting bracket through a bearing, at least one material limiting roller is arranged on the material limiting shaft, and material limiting sheets are arranged on both sides of the material limiting roller. The material limiting motor is fixed to one side of the material limiting bracket, and the output shaft of the material limiting motor is connected to one end of the material limiting shaft. The material limiting motor is used to drive the material limiting shaft to rotate and then drive the material limiting roller to rotate.

[0007] Preferably, the material limiting sheet is arranged vertically, the distance between the material limiting sheet and the suction belt conveyor is set to the thickness of a protective film, and the lower end of the material limiting sheet is arranged in an arc shape along the direction in which the material limiting roller rotates;

[0008] Preferably, the second feeding belt conveyor is configured as a two-layer belt, the protective film passes between the two layers of belts, and the upper plane of the suction belt conveyor is flush with the upper plane of the lower layer of belt of the second feeding belt conveyor.

[0009] Preferably, the protective film enters from one side of the conveyor belt, and a width adjustment plate is provided on the other side of the conveyor belt. The width adjustment plate and one side frame of the conveyor belt constitute a channel for the protective film. The width adjustment plate is used to adjust the width of the channel for conveying the protective film by the conveyor belt. The width adjustment plate is fixed to the conveying bottom plate by fasteners. The conveying bottom plate is fixed to the frames on both sides of the conveyor belt, and the conveying bottom plate passes through the loop formed by the belt of the conveyor belt. At least two transverse strip holes are provided on the conveying bottom plate. The width adjustment plate is fixed in the strip holes of the conveying bottom plate by fasteners. The rear end width of the width adjustment plate is greater than the front end width, and the front end to the rear end of the width adjustment plate has a smooth transition.

[0010] Preferably, the support frame is fixed above the tail of the conveyor belt machine, and the support frame includes transversely arranged horizontal bars and longitudinally arranged vertical bars, the horizontal bars are fixed on the frame of the conveyor belt machine, and the vertical bars are fixed under the horizontal bars, the tail ends of the vertical bars are arranged in a wedge shape, the tail of the conveyor bottom plate protrudes from the conveyor belt machine, and the tail end of the conveyor bottom plate is arranged in a wedge shape, and the wedge-shaped tail end of the vertical bar and the wedge-shaped tail end of the conveyor bottom plate form a V-shaped tip, leading to a packaging film folded on one side, and the protective film passes between the vertical bar and the conveyor bottom plate.

[0011] Preferably, the packaging film feeding part includes a packaging film ring bracket and a guide wheel group, the packaging film ring with one side folded is fixed on the packaging film ring bracket, the guide wheel group is fixed to the head end of the packaging film conveyor belt machine, and the packaging film with one side folded on the packaging film ring bracket enters the packaging film conveyor belt machine through the guide wheel group.

[0012] Preferably, the hot pressing device includes a hot pressing support, a vertical cylinder 1, a vertical slide rail, a vertical slide seat 1, a vertical slide seat 2, a vertical cylinder 2 and a hot pressing part. The hot pressing support is composed of vertical plates on both sides and a back plate fixed between the vertical plates on both sides. The vertical cylinder 1 is fixed to the top of the back plate. A vertical slide rail is vertically arranged on the front side of the back plate. The vertical slide seat 1 and the vertical slide seat 2 are fixed on the vertical slide rail. The vertical slide seat 1 is on the top and the vertical slide seat 2 is on the bottom. The output end of the vertical cylinder 1 is connected to the vertical slide seat 1 for driving the vertical slide seat 1 to reciprocate in the vertical direction. The vertical cylinder 2 is fixed on the vertical slide seat 1, and the hot pressing part is fixed on the vertical slide seat 2. The output end of the vertical cylinder 2 is connected to the hot pressing part for driving the hot pressing part to reciprocate in the vertical direction on the vertical slide rail.

[0013] Preferably, the hot pressing part includes a hot pressing seat, an auxiliary pressing plate and a hot pressing knife. The hot pressing seat is fixed on the second vertical slide seat, and the hot pressing knife is fixed below the hot pressing seat. A through hole is arranged at each of the four corners of the hot pressing seat, and a guide column is fixed at each of the four corners of the auxiliary pressing plate. The guide column is movably embedded in the through hole, and a clamping block is arranged at the upper end of the guide column. An inverted trapezoidal hole for passing the hot pressing blade is provided on the auxiliary pressing plate.

[0014] Preferably, the slitting device has the same structure as the hot pressing device, and the only difference is that the length of the hot pressing blade of the slitting device is greater than the length of the hot pressing blade of the hot pressing device.

[0015] Compared with the beneficial effects of the prior art, the present invention realizes automatic and continuous feeding of the protective film by providing a protective film feeding part; realizes automatic and continuous feeding of the packaging film by providing a packaging film feeding part. While the protective film is being fed, the packaging film is simultaneously bagged, which saves labor and improves efficiency. By providing a hot pressing device and a slitting device, the bag making and cutting after bagging are realized, avoiding the process of first making the bags, then transporting the bags, and then manually bagging. By providing a finished product conveying part, the conveying of the finished products is realized and automation is achieved. The present invention has a high degree of automation, realizes continuous packaging of the protective film, saves labor, improves production efficiency, reduces the production cost of the enterprise, and has good market application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the protective film feeding part of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the suction belt conveyor and the feeding belt conveyor of the present invention;

[0019] Figure 4 The structure diagram of the conveyor belt machine of the present invention is shown in FIG.

[0020] Figure 5 Schematic diagram of the support structure of the present invention

[0021] Figure 6 It is a schematic diagram of the structure of the packaging unit and the finished product conveying unit of the present invention;

[0022] Figure 7 It is a schematic diagram of the structure of the hot pressing device of the present invention;

[0023] Figure 8 It is a schematic diagram of a continuous bag without cutting of the present invention;

[0024] Symbols in the figure: feeding belt conveyor 1; suction belt conveyor 2; material limiting device 3; height fine-tuning mechanism 31; fine-tuning support plate 311; fine-tuning bolt 312; fine-tuning nut 313; fine-tuning seat 314; material limiting bracket 32; material limiting motor 33; material limiting shaft 34; material limiting roller 35; material limiting sheet 36; feeding belt conveyor 2 4; conveyor belt conveyor 5; width adjustment plate 51; support frame 52; horizontal bar 521; vertical bar 522 ; Blowing port 5221; block 53; packaging film material ring bracket 6; guide wheel group 7; packaging film conveyor belt machine 8; hot pressing device 9; hot pressing bracket 91; vertical cylinder 1 92; vertical slide rail 93; vertical slide seat 1 94; vertical slide seat 2 95; vertical cylinder 2 96; hot pressing seat 971; auxiliary pressure plate 972; hot pressing knife 973; hot pressing part 97; slitting device 10; acceleration belt 11; material collection belt 12. DETAILED DESCRIPTION

[0025] It should be noted that the above-mentioned technical features are further combined with each other to form various embodiments not listed above, which are all deemed to be within the scope of the present invention; and, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should fall within the scope of protection of the claims attached to the present invention.

[0026] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are provided in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] like Figure 1 and 2As shown, a protective film fully automatic packaging production line includes a protective film feeding part, a packaging film feeding part, a packaging part and a finished product conveying part, wherein the packaging film feeding part is fixed to the head end of the packaging part, the protective film feeding part is fixed to one side of the packaging part, and the output end of the protective film feeding part is connected to the middle part of the packaging part, and the finished product conveying part is fixed to the output end of the packaging part; the protective film feeding part includes a feeding belt conveyor 1, a suction belt conveyor 2, a feeding belt conveyor 2 4 and a conveying belt conveyor 5, the feeding belt conveyor 1, the suction belt conveyor 2, the feeding belt conveyor 2 4 and the conveying belt conveyor 5 are connected end to end in sequence, and the conveying belt conveyor 5 is perpendicular to the feeding belt conveyor 2 4 on a horizontal plane, the conveying belt conveyor 5 is connected to the packaging part, and a limiting device 3 is arranged at the head end of the feeding belt conveyor 2 4, and the limiting device 3 is used for The protective film is limited to pass through one sheet at a time; a plurality of blocks 53 are arranged at equal intervals on the synchronous belt of the conveyor belt machine 5, and the blocks 53 are used to drive the protective film. A support frame 52 is arranged at the tail end of the conveyor belt machine 5, and a packaging film folded on one side is passed through the front end of the support frame 52, which is used to open the packaging film folded on one side to facilitate the protective film to enter the packaging film. The packaging film feeding part is used to output the packaging film folded on one side. The packaging part includes a packaging film conveyor belt machine 8, a hot pressing device 9 and a slitting device 10. The hot pressing device 9 is arranged at the front section of the packaging film conveyor belt machine 8, and the slitting device 10 is arranged at the rear section of the packaging film conveyor belt machine 8. The hot pressing device 9 is used to partially hot press the packaging film folded on one side to form a continuous pocket, and the slitting device 10 is used to slit the pocket; the finished product conveying part is used to convey the protective film after packaging.

[0031] like Figure 3 As shown, preferably, the material limiting device 3 includes a material limiting bracket 32, a material limiting motor 33, a material limiting shaft 34, a material limiting roller 35 and a material limiting piece 36, the material limiting bracket 32 ​​is fixed to the head end of the feeding belt conveyor 24, the material limiting shaft 34 is fixed on the material limiting bracket through a bearing, at least one material limiting roller 35 is arranged on the material limiting shaft 34, and material limiting pieces 36 are arranged on both sides of the material limiting roller 35, the material limiting motor 33 is fixed to one side of the material limiting bracket 32, the output shaft of the material limiting motor 33 is connected to one end of the material limiting shaft 34, and the material limiting motor 33 is used to drive the material limiting shaft 34 to rotate and then drive the material limiting roller 35 to rotate.

[0032] Preferably, the limiting sheet 36 is vertically arranged, the distance between the limiting sheet 36 and the suction belt conveyor 2 is set to the thickness of a protective film, and the lower end of the limiting sheet 36 is set in an arc shape along the direction of rotation of the limiting roller 35;

[0033] Furthermore, the material limiting sheets 36 are provided in three numbers, and two material limiting rollers 35 are provided between the three material limiting sheets 36. The material limiting rollers 35 are provided in rubber wheels, which are used to increase the friction force when the material limiting rollers 35 rotate, so as to better drive the protective film to move forward.

[0034] The screw cap 312 is provided with a screw thread 314 on the top of the screw cap 316, and the screw thread 314 is provided with a screw thread 315 on the top of the screw cap 316. The screw thread 314 is provided with a screw thread 315 on the top of the screw cap 316, and the screw thread 315 is provided with a screw thread 315 on the bottom of the screw cap 316.

[0035] Furthermore, the belt of the feeding belt machine is composed of a plurality of circular rubber belts with equal spacing. By setting the belt of the feeding belt machine to be circular, the contact surface between the feeding belt machine and the protective film is reduced, and the probability of the protective film being scratched is reduced. By setting the belt of the feeding belt machine to be made of rubber material, the friction between the belt of the feeding belt machine and the protective film is increased to prevent slipping.

[0036] Preferably, the feeding belt conveyor 2 4 is configured as a two-layer belt, the protective film passes between the two layers of belts, and the upper plane of the suction belt conveyor 2 is flush with the upper plane of the lower layer of belt of the feeding belt conveyor 2 4 .

[0037] like Figure 4 As shown, preferably, the protective film enters from one side of the conveyor belt 5, and a width adjustment plate 51 is arranged on the other side of the conveyor belt 5. The width adjustment plate 51 and a side frame of the conveyor belt 5 constitute a channel for the protective film. The width adjustment plate 51 is used to adjust the width of the channel for the conveyor belt 5 to convey the protective film. The width adjustment plate 51 is fixed to the conveying bottom plate by fasteners. The conveying bottom plate is fixed to the frames on both sides of the conveyor belt 5, and the conveying bottom plate passes through the loop formed by the belt of the conveyor belt 5. At least two transverse strip holes are arranged on the conveying bottom plate. The width adjustment plate 51 is fixed in the strip holes of the conveying bottom plate by fasteners. The rear end width of the width adjustment plate 51 is greater than the front end width, and the front end to the rear end of the width adjustment plate 51 has a smooth transition.

[0038] like Figure 5As shown, preferably, the support frame 52 is fixed above the tail of the conveyor belt 5, and the support frame 52 includes a transversely arranged horizontal bar 521 and a longitudinally arranged vertical bar 522, the horizontal bar 521 is fixed on the frame of the conveyor belt 5, and the longitudinal bar 522 is fixed under the horizontal bar 521, the tail end of the longitudinal bar 522 is set to be wedge-shaped, the tail of the conveyor bottom plate protrudes from the conveyor belt 5, and the tail end of the conveyor bottom plate is set to be wedge-shaped, and the wedge-shaped tail end of the longitudinal bar 522 and the wedge-shaped tail end of the conveyor bottom plate form a V-shaped tip, leading to a packaging film folded on one side, and the protective film passes between the longitudinal bar 522 and the conveyor bottom plate.

[0039] like Figure 6 As shown, preferably, the packaging film feeding part includes a packaging film ring bracket 6 and a guide wheel group 7, a packaging film ring with one side folded is fixed on the packaging film ring bracket 6, and the guide wheel group 7 is fixed to the head end of the packaging film conveyor belt machine 8, and the packaging film with one side folded on the packaging film ring bracket 6 enters the packaging film conveyor belt machine 8 through the guide wheel group 7.

[0040] like Figure 7 As shown, preferably, the hot pressing device 9 includes a hot pressing bracket 91, a vertical cylinder 1 92, a vertical slide rail 93, a vertical slide seat 1 94, a vertical slide seat 2 95, a vertical cylinder 2 96 and a hot pressing piece 97. The hot pressing bracket 91 is composed of vertical plates on both sides and a back plate fixed between the vertical plates on both sides. The vertical cylinder 1 92 is fixed to the top of the back plate. A vertical slide rail 93 is vertically arranged on the front side of the back plate. A vertical slide seat 1 94 and a vertical slide seat 2 95 are fixed on the vertical slide rail 93. The vertical slide The seat 1 94 is on the top, and the vertical slide seat 2 95 is on the bottom. The output end of the vertical cylinder 1 92 is connected to the vertical slide seat 1 94 for driving the vertical slide seat 1 94 to reciprocate in the vertical direction. The vertical cylinder 2 96 is fixed on the vertical slide seat 1 94, and the hot pressing piece 97 is fixed on the vertical slide seat 2 95. The output end of the vertical cylinder 2 96 is connected to the hot pressing piece 97 for driving the hot pressing piece 97 to reciprocate in the vertical direction on the vertical slide rail 93.

[0041] Preferably, the hot pressing part 97 includes a hot pressing seat 971, an auxiliary pressure plate 972 and a hot pressing knife 973. The hot pressing seat 971 is fixed on the vertical slide seat 95. The hot pressing knife 973 is fixed below the hot pressing seat 971. A through hole is arranged at each of the four corners of the hot pressing seat 971. A guide column is fixed at each of the four corners of the auxiliary pressure plate 972. The guide column is movably embedded in the through hole, and a block is arranged at the upper end of the guide column. The auxiliary pressure plate 972 is provided with an inverted trapezoidal hole for passing the blade of the hot pressing knife 973.

[0042] Preferably, the slitting device 10 has the same structure as the hot pressing device 9 , and the only difference is that the length of the hot pressing knife 973 of the slitting device 10 is greater than the length of the hot pressing knife of the hot pressing device 9 .

[0043] Furthermore, the finished product conveying section is composed of an accelerating belt 11 and a receiving belt 12. The receiving belt 12 is arranged on the rear side of the accelerating belt 11, and the upper plane of the receiving belt 12 is flush with the lower plane of the accelerating belt 11. The receiving belt 12 and the accelerating belt 11 form a certain height difference. The accelerating belt 11 accelerates the protective film to be transported forward, forming a stacking effect on the receiving belt 12.

[0044] Furthermore, the acceleration belt 11 and the receiving belt 12 are composed of a plurality of circular rubber belts at equal intervals. By setting the acceleration belt 11 and the receiving belt 12 to be circular, the contact area between the acceleration belt 11 and the receiving belt 12 and the protective film is reduced, and the probability of the protective film being scratched is reduced. By setting the acceleration belt 11 and the receiving belt 12 to be made of rubber material, the friction between the belt of the feeding belt machine and the protective film is increased to prevent slipping.

[0045] Furthermore, a pressure wheel is arranged at the head end of the acceleration belt 11, and two pressure wheels are arranged, one pressure wheel is pressed on the tail end of the packaging film conveyor belt 8, and the other pressure wheel is pressed on the head end of the acceleration belt 11. Since the material of the protective film is relatively light, the pressure wheel can prevent the protective film from drifting.

[0046] Furthermore, a photoelectric sensor is arranged on the acceleration belt 11, and the photoelectric sensor is used for counting. Every time the photoelectric sensor senses a packaged product passing by, the receiving belt 12 moves a certain distance, thereby realizing the inclined stacking of the protective film. When the number of protective films reaches the set value, such as 20 sheets, the receiving belt 12 moves quickly for a certain period of time and then continues to repeat the above action, thereby realizing a certain distance between the previous stack of protective films and the next stack of protective films, thereby realizing collection into stacks according to quantity.

[0047] The packaging film conveyor belt machine 8 is configured as a suction belt. When the packaging film enters the packaging film conveyor belt machine, the suction belt forms negative pressure with the packaging film, and absorbs the packaging film to move forward.

[0048] Furthermore, the protective film enters the packaging film conveyor 8 from one side. The packaging film conveyor 8 is provided with a wedge block on the rear side of the protective film entrance. The oblique edge of the wedge block faces the inner side of the packaging film conveyor 8, and is used to completely push the protective film that has not completely entered the packaging film into the packaging film as the packaging film conveyor 8 moves.

[0049] The working principle of the present invention is as follows: a protective film is placed on the feeding belt conveyor 1, and the protective film limits the movement of the feeding belt conveyor 1 to transport the protective film to the suction belt conveyor 2. The suction belt conveyor 2 absorbs the protective film of the bottom layer and moves backward. The gap between the limiting sheet 36 and the suction belt conveyor 2 allows only one protective film to pass through. The limiting roller 35 rubs the protective film into the two layers of the belt of the feeding belt conveyor 2 4. The feeding belt conveyor 2 4 drives the protective film to move backward. The protective film is transported by the feeding belt conveyor 2 4 to the channel of the conveying belt conveyor 5. The block 53 on the belt of the conveying belt conveyor 5 drives the protective film to move forward. Under the limiting effect of the width adjustment plate 51, the protective film enters between the longitudinal strip 522 and the conveying bottom plate.

[0050] At the same time, the packaging film folded on one side passes through the guide wheel group 7 and is transported by the packaging film conveyor belt machine 8 to move backward at a fixed distance. When the packaging film folded on one side passes through the hot pressing device 9, the vertical cylinder 1 92 drives the vertical slide 1 94 to move downward and then stops, and the vertical cylinder 2 96 drives the vertical slide 2 95 to move downward, that is, the hot pressing member 97 moves downward, and the auxiliary pressing plate 972 of the hot pressing member 97 first contacts the packaging film and continues to move downward. Due to the action of the guide column, the guide column and the hot pressing seat 971 slide, and the auxiliary pressing plate 972 presses on the packaging film, and the hot pressing knife 973 continues to move downward. The hot pressing knife 973 is pressed to perform packaging bags. Since the hot pressing knife 973 of the hot pressing device 9 is shorter, a part of the edge of the packaging bag is not hot pressed, and the V-shaped tip formed by the wedge-shaped tail end of the longitudinal strip 522 and the wedge-shaped tail end of the conveying bottom plate separates the bag. The hot pressing device 9 does not cut the packaging bag. Figure 8 As shown, a continuous bag is formed without being cut, and the V-shaped tip formed by the wedge-shaped tail end of the longitudinal strip 522 and the wedge-shaped tail end of the conveying bottom plate separates the packaging bag, and the protective film enters the packaging bag, and with the movement of the packaging film conveyor 8, under the action of the wedge block, the protective film completely enters the packaging bag, and the slitting device 10 completely cuts the packaging bag. The movement principle of the slitting device 10 is the same as that of the hot pressing device 9, which will not be repeated here. Since the hot pressing knife 973 of the slitting device 10 is longer than the hot pressing knife 973 of the hot pressing device 9, the packaging bag is completely cut;

[0051] The packaging bag filled with protective film enters the acceleration belt 11 and moves forward, and enters the receiving belt 12. The photoelectric sensor is used for counting. Every time the photoelectric sensor senses a packaged product passing by, the receiving belt 12 moves a certain distance, thereby realizing the inclined stacking of the protective film. When the number of protective films reaches the set value, such as 20 sheets, the cake belt will move quickly for a certain period of time and continue to repeat the above action, thereby realizing a certain distance between the previous stack of protective films and the next stack of protective films, thereby realizing collection into stacks according to quantity and completing the automatic bagging of the protective films.

[0052] Embodiment 2 is different from Embodiment 1 in that the feeding belt conveyor 2 4 and the conveying belt conveyor 5 are both fixed on a slide plate, the slide plate is fixed on a horizontal slide seat, the horizontal slide seat is fixed on a horizontal slide rail, the horizontal slide rail is fixed on the base plate, a nut seat of a ball screw is provided at the bottom of the slide plate, the ball screw is fixed to the upper surface of the base plate, and the ball screw is manually rotated to push the slide plate to fine-tune horizontally, so as to achieve fine-tuning of the position of the protective film into the packaging bag.

[0053] Implementation example three is different from the above embodiments in that a blowing port 5221 is further provided at the wedge-shaped tail end of the longitudinal strip 522, and the blowing port 5221 is connected to the air path for blowing up the packaging bag to facilitate the entry of the protective film.

[0054] It should be noted that the above-mentioned technical features are further combined with each other to form various embodiments not listed above, which are all deemed to be within the scope of the present invention; and, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A fully automatic protective film packaging production line, characterized in that: The invention comprises a protective film feeding part, a packaging film feeding part, a packaging part and a finished product conveying part, wherein the packaging film feeding part is fixed at the head end of the packaging part, the protective film feeding part is fixed at one side of the packaging part, and the output end of the protective film feeding part is connected to the middle part of the packaging part, and the finished product conveying part is fixed at the output end of the packaging part; the protective film feeding part comprises a feeding belt conveyor 1, a suction belt conveyor, a feeding belt conveyor 2 and a conveying belt conveyor, wherein the feeding belt conveyor 1, the suction belt conveyor, the feeding belt conveyor 2 and the conveying belt conveyor are connected end to end in sequence, and the conveying belt conveyor is perpendicular to the feeding belt conveyor 2 on a horizontal plane, the conveying belt conveyor is connected to the packaging part, and a limiting device is arranged at the head end of the feeding belt conveyor 2, and the limiting device is used to limit the protective film feeding part. The film passes through one sheet at a time; a plurality of blocks are arranged at equal intervals on the synchronous belt of the conveyor belt machine, the blocks are used to drive the protective film, a support frame is arranged at the tail end of the conveyor belt machine, a packaging film folded on one side is passed through the front end of the support frame, which is used to open the packaging film folded on one side to facilitate the protective film to enter the packaging film, the packaging film feeding part is used to output the packaging film folded on one side, the packaging part comprises a packaging film conveyor belt machine, a hot pressing device and a slitting device, the hot pressing device is arranged at the front section of the packaging film conveyor belt machine, the slitting device is arranged at the rear section of the packaging film conveyor belt machine, the hot pressing device is used to partially hot press the packaging film folded on one side to form continuous pockets, and the slitting device is used to slit the pockets; the finished product conveying part is used to convey the finished protective film; The material limiting device includes a material limiting bracket, a material limiting motor, a material limiting shaft, a material limiting roller and a material limiting sheet, wherein the material limiting bracket is fixed to the head end of the second feeding belt conveyor, the material limiting shaft is fixed to the material limiting bracket via a bearing, at least one material limiting roller is arranged on the material limiting shaft, and material limiting sheets are arranged on both sides of the material limiting roller, the material limiting motor is fixed to one side of the material limiting bracket, the output shaft of the material limiting motor is connected to one end of the material limiting shaft, and the material limiting motor is used to drive the material limiting shaft to rotate and then drive the material limiting roller to rotate; The material limiting sheet is arranged vertically, the distance between the material limiting sheet and the suction belt conveyor is set to the thickness of a protective film, and the lower end of the material limiting sheet is arranged in an arc shape along the direction in which the material limiting roller rotates; Height fine-tuning mechanisms are arranged at both ends of the material limiting bracket, and the height fine-tuning mechanism comprises a fine-tuning support plate, a fine-tuning bolt, a fine-tuning nut and a fine-tuning seat. The fine-tuning seat is movably arranged and vertically embedded in the material limiting bracket, and the material limiting shaft is embedded in the fine-tuning seat through a bearing, and the fine-tuning support plate is fixed to the top end of the material limiting bracket. The fine-tuning bolt is screwed into the fine-tuning nut and then passes through the fine-tuning support plate, and the lower end of the fine-tuning bolt is movably embedded in the fine-tuning seat. By rotating the fine-tuning bolt, the fine-tuning seat is pulled up and down under the limiting action of the fine-tuning nut, thereby driving the material limiting shaft embedded in the fine-tuning seat to move up and down, and the pressure of the material limiting roller on the protective film is fine-tuned.

2. According to claim 1, a protective film fully automatic packaging production line is characterized in that: The second feeding belt conveyor is configured as two layers of belts, the protective film passes between the two layers of belts, and the upper plane of the suction belt conveyor is flush with the upper plane of the lower layer of belt of the second feeding belt conveyor.

3. According to claim 1, a protective film fully automatic packaging production line is characterized in that: The protective film enters from one side of the conveyor belt machine, and a width adjustment plate is arranged on the other side of the conveyor belt machine. The width adjustment plate and one side frame of the conveyor belt machine constitute a channel for the protective film. The width adjustment plate is used to adjust the width of the channel for conveying the protective film by the conveyor belt machine. The width adjustment plate is fixed to the conveyor bottom plate by fasteners. The conveyor bottom plate is fixed to the frames on both sides of the conveyor belt machine, and the conveyor bottom plate passes through the loop formed by the belt of the conveyor belt machine. At least two transverse strip holes are arranged on the conveyor bottom plate. The width adjustment plate is fixed in the strip holes of the conveyor bottom plate by fasteners. The rear end width of the width adjustment plate is greater than the front end width, and the front end to the rear end of the width adjustment plate has a smooth transition.

4. According to claim 3, a protective film fully automatic packaging production line is characterized in that: The support frame is fixed above the tail of the conveyor belt machine, and the support frame includes transversely arranged horizontal bars and longitudinally arranged vertical bars. The horizontal bars are fixed on the frame of the conveyor belt machine, and the longitudinal bars are fixed under the horizontal bars. The tail ends of the longitudinal bars are arranged in a wedge shape, and the tail end of the conveyor bottom plate protrudes from the conveyor belt machine. The tail end of the conveyor bottom plate is arranged in a wedge shape. The wedge-shaped tail end of the longitudinal bar and the wedge-shaped tail end of the conveyor bottom plate form a V-shaped tip, which leads to a packaging film folded on one side, and the protective film passes between the longitudinal bar and the conveyor bottom plate.

5. According to claim 1, a protective film fully automatic packaging production line is characterized in that: The packaging film feeding part includes a packaging film material ring bracket and a guide wheel group, the packaging film material ring with one side folded is fixed on the packaging film material ring bracket, the guide wheel group is fixed to the head end of the packaging film conveyor belt machine, and the packaging film with one side folded on the packaging film material ring bracket enters the packaging film conveyor belt machine through the guide wheel group.

6. The fully automatic protective film packaging production line according to claim 1, characterized in that: The hot pressing device includes a hot pressing support, a vertical cylinder 1, a vertical slide rail, a vertical slide seat 1, a vertical slide seat 2, a vertical cylinder 2 and a hot pressing part. The hot pressing support is composed of vertical plates on both sides and a back plate fixed between the vertical plates on both sides. The vertical cylinder 1 is fixed to the top of the back plate, and a vertical slide rail is vertically arranged on the front side of the back plate. The vertical slide seat 1 and the vertical slide seat 2 are fixed on the vertical slide rail. The vertical slide seat 1 is on the top and the vertical slide seat 2 is on the bottom. The output end of the vertical cylinder 1 is connected to the vertical slide seat 1 for driving the vertical slide seat 1 to reciprocate in the vertical direction. The vertical cylinder 2 is fixed on the vertical slide seat 1, and the hot pressing part is fixed on the vertical slide seat 2. The output end of the vertical cylinder 2 is connected to the hot pressing part for driving the hot pressing part to reciprocate in the vertical direction on the vertical slide rail.

7. The fully automatic protective film packaging production line according to claim 6, characterized in that: The hot pressing part includes a hot pressing seat, an auxiliary pressing plate and a hot pressing knife. The hot pressing seat is fixed on the second vertical slide seat, and the hot pressing knife is fixed below the hot pressing seat. A through hole is arranged at each of the four corners of the hot pressing seat, and a guide column is fixed at each of the four corners of the auxiliary pressing plate. The guide column is movably embedded in the through hole, and a clamping block is arranged at the upper end of the guide column. An inverted trapezoidal hole for passing the hot pressing blade is provided on the auxiliary pressing plate.

8. The fully automatic protective film packaging production line according to claim 7, characterized in that: The slitting device has the same structure as the hot pressing device, and the only difference is that the length of the hot pressing blade of the slitting device is greater than the length of the hot pressing blade of the hot pressing device.

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