Edge folding, heat sealing and forming mechanism of tissue single packaging machine

Abstract

The utility model relates to the related technical field of tissue packaging, in particular to an edge folding, heat sealing and forming mechanism of a tissue single-packaging machine, which comprises a support frame body, and a bearing platform, a pressing and conveying mechanism and a horizontal conveying mechanism which are arranged on the support frame body and are sequentially arranged along a tissue bag conveying direction, wherein the two sides of the pressing and conveying mechanism are provided with movable edge guides used for folding one side of the tissue bag; fixed edge guides are symmetrically mounted on the two sides of the horizontal conveying mechanism, and when the pressing conveying mechanism and the horizontal conveying mechanism convey a tissue bag in the tissue bag conveying direction, the two sides of the tissue bag sequentially perform edge folding actions; after the compressing and conveying mechanism compresses the tissue bag, the swinging and ironing mechanism and the lower film folding mechanism are used for conducting film folding and hot sealing treatment on the tissue bag in sequence. Automatic edge folding and hot sealing of the tissue bag in the conveying process are achieved, and the packaging efficiency and quality are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper towel package related technical field, concretely is a kind of paper towel single packing machine's edge folding and sealing forming mechanism. BACKGROUND

[0002] People's requirements for the extraction paper towel are not only the quality of paper, but also have certain requirements to the appearance package of extraction paper towel. In order to meet the needs of people, it is necessary to improve the packaging efficiency and packaging precision of extraction paper towel.

[0003] In the packaging process of paper towel single packing machine, the front folding, lower folding and upper folding of the packaging film on both sides of the continuously sent paper towel package are sequentially completed, which is the key step to realize three-dimensional wrapping. The traditional equipment generally adopts fixed edge guide plate or manual assisted edge folding mode: when the paper towel package is pushed to the edge folding station, it is passively scraped by fixed slope or the operator holds the folding plate to fold again, so that the whole packaging step of paper towel stack is very cumbersome, and the packaging efficiency is low. UTILITARIAN CONTENT

[0004] The utility model aims at providing a kind of paper towel single packing machine's edge folding and sealing forming mechanism to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of paper towel single packing machine's edge folding and sealing forming mechanism, including support frame body and setting on support frame body and sequentially setting along the paper towel package conveying direction receiving platform, compact conveying mechanism and horizontal conveying mechanism, wherein: the compact conveying mechanism is provided with the movable edge guide for folding one side of paper towel package on both sides;The horizontal conveying mechanism is symmetrically installed with fixed edge guide on both sides, when compact conveying mechanism and horizontal conveying mechanism convey paper towel package along the paper towel package conveying direction, the folding action of both sides of the paper towel package is sequentially executed: it further includes swing sealing mechanism and lower film mechanism distributed along support frame body up and down, after compact conveying mechanism compacts paper towel package, swing sealing mechanism and lower film mechanism are used to fold film and seal processing to paper towel package in turn.

[0006] The edge folding and sealing forming mechanism of paper towel single packing machine as described above: the support frame body includes rack and upper support plate, movable frame is installed along vertical sliding between the rack and upper support plate, and lifting adjusting mechanism for adjusting the vertical height of movable frame is connected and installed on the rack.

[0007] The edge folding and sealing forming mechanism of the single paper towel bag packaging machine: the lifting adjusting mechanism comprises a plurality of vertical slide rods fixedly connected with the rack and the upper support plate, and two movable racks symmetrically arranged and slidably installed on the vertical slide rods; a lead screw is rotatably installed on the upper support plate and threadedly connected with the movable racks, and the lead screw is rotatably connected with a connecting shaft rotatably installed on the upper support plate through a bevel gear set, and the connecting shaft is connected with a hand wheel or a driving motor.

[0008] The edge folding and sealing forming mechanism of the single paper towel bag packaging machine: the pressing conveying mechanism comprises a lower pressing conveying unit installed on the rack and an upper pressing conveying unit installed on the movable rack, and a pressing channel for the paper towel bag to enter is formed between the lower pressing conveying unit and the upper pressing conveying unit, and the upper pressing conveying unit can move up and down relative to the movable rack to perform a pressing action on the paper towel bag together with the lower pressing conveying unit.

[0009] The edge folding and sealing forming mechanism of the single paper towel bag packaging machine: a horizontal guide plate is further fixed on the movable rack, a channel for the laying and sealing mechanism to pass through is formed between the horizontal guide plate and the upper pressing conveying unit, and a movable blocking mechanism for blocking or opening the channel is further arranged on the movable rack, and when the movable blocking mechanism blocks the channel, the vertical downward side of the horizontal guide plate, the movable blocking mechanism and the upper pressing conveying unit are in the same horizontal plane.

[0010] The edge folding and sealing forming mechanism of the single paper towel bag packaging machine: the horizontal conveying mechanism comprises a lower conveying unit installed on the rack and an upper conveying unit installed on the movable rack, and a conveying channel is formed between the upper conveying unit and the lower conveying unit.

[0011] The edge folding and sealing forming mechanism of the single paper towel bag packaging machine: the movable edge guide comprises two movable connecting plates symmetrically arranged and fixed, and a folding member is installed on the movable connecting plate; and a reciprocating driving member for driving the two movable connecting plates to move back and forth along the conveying direction of the paper towel bag is further arranged.

[0012] The edge folding and sealing forming mechanism of the single paper towel bag packaging machine: the fixed edge guide is symmetrically arranged and fixed on both sides of the horizontal conveying mechanism, and the fixed edge guide sequentially comprises a side folding head, a lower folding inclined surface and an upper folding inclined surface along the conveying direction of the paper towel bag; the lower folding inclined surface gradually inclines upward along the conveying direction of the paper towel bag; and the upper folding inclined surface gradually inclines downward along the conveying direction of the paper towel bag.

[0013] The edge sealing and forming mechanism of the single tissue package machine comprises a fixed frame mounted on the upper support plate, a movable mounting plate slidably mounted on the fixed frame, the movable mounting plate being driven to reciprocate by a driving unit mounted on the fixed frame, an upper folding film plate fixed on the movable mounting plate to move along the vertical direction with the movable mounting plate, and a sealing plate rotatably mounted on the movable mounting plate and driven to rotate by a second motor mounted on the movable mounting plate.

[0014] The edge sealing and forming mechanism of the single tissue package machine comprises a fixed frame mounted on the upper support plate, a movable mounting plate slidably mounted on the fixed frame, the movable mounting plate being driven to reciprocate by a driving unit mounted on the fixed frame, an upper folding film plate fixed on the movable mounting plate to move along the vertical direction with the movable mounting plate, and a sealing plate rotatably mounted on the movable mounting plate and driven to rotate by a second motor mounted on the movable mounting plate.

[0015] Compared with the prior art, the edge sealing and forming mechanism of the single tissue package machine can efficiently and stably complete the packaging process of the tissue package, realizes the automatic folding and sealing of the tissue package in the conveying process through the cooperation of the pressing conveying mechanism, the sealing plate, the movable guide edge device and the fixed guide edge device, effectively improves the packaging efficiency and quality, and ensures the neatness and tightness of the edges of the tissue package, thereby effectively avoiding the problems of looseness or rebound after packaging. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic view of the edge sealing and forming mechanism of the single tissue package machine;

[0017] Figure 2 FIG. 2 is a front view of the edge sealing and forming mechanism of the single tissue package machine;

[0018] Figure 3 FIG. 3 is a structural schematic view of the lifting adjusting mechanism in the edge sealing and forming mechanism of the single tissue package machine;

[0019] Figure 4 FIG. 4 is a structural schematic view of the sealing plate in the edge sealing and forming mechanism of the single tissue package machine;

[0020] Figure 5 FIG. 5 is a structural schematic view of the lower pressing conveying unit in the edge sealing and forming mechanism of the single tissue package machine;

[0021] Figure 6 FIG. 6 is a structural schematic view of the upper pressing conveying unit in the edge sealing and forming mechanism of the single tissue package machine;

[0022] Figure 7 FIG. 7 is a structural schematic view of the fixed guide edge device and the lower conveying unit in the edge sealing and forming mechanism of the single tissue package machine;

[0023] Figure 8 Structure diagram of upper conveying unit in the folding and sealing forming mechanism of the single packaging machine for paper towel;

[0024] Figure 9 Structure diagram of lower film folding mechanism in the folding and sealing forming mechanism of the single packaging machine for paper towel;

[0025] Figure 10 Structure diagram of movable edge guide in the folding and sealing forming mechanism of the single packaging machine for paper towel;

[0026] Figure 11 Structure diagram of the movable blocking mechanism in the folding and sealing forming mechanism of the single packaging machine for paper towel in the state of blocking the passage;

[0027] Figure 12 Structure diagram of the movable blocking mechanism in the folding and sealing forming mechanism of the single packaging machine for paper towel in the state of opening the passage;

[0028] Figure 13 Sectional view of the movable blocking mechanism in the folding and sealing forming mechanism of the single packaging machine for paper towel in the state of blocking the passage;

[0029] Figure 14 Sectional view of the movable blocking mechanism in the folding and sealing forming mechanism of the single packaging machine for paper towel in the state of opening the passage.

[0030] In the figure: 1, frame; 2, movable frame; 3, ironing mechanism; 301, fixed frame; 302, first motor; 303, first eccentric rod; 304, first movable connecting rod; 305, movable mounting plate; 306, second motor; 307, ironing plate; 308, upper folding film plate; 4, receiving platform; 5, lower folding film mechanism; 501, lower folding film plate; 502, second movable connecting rod; 503, second eccentric rod; 504, third motor; 6, upper conveying unit; 601, upper conveying frame; 602, upper conveying belt; 7, lower conveying unit; 701, lower conveying frame; 702, lower conveying belt; 8, lower pressing conveying unit; 801, lower pressing frame; 802, lower pressing conveying belt; 803, first belt roller; 9, upper pressing conveying unit; 901, upper pressing frame; 902, upper pressing conveying belt; 903, second belt roller; 904, connecting frame; 905, fourth motor; 906, third eccentric rod; 907, third movable connecting rod; 10, lifting adjusting mechanism; 1001, hand wheel; 1002, bevel gear set; 1003, connecting shaft; 1004, screw rod; 1005, vertical slide rod; 11, movable edge guide; 1101, edge folding piece; 1102, movable connecting plate; 1103, guide rail; 1104, fourth movable connecting rod; 1105, fourth eccentric rod; 1106, fifth motor; 12, fixed edge guide; 1201, side folding head; 1202, lower edge folding slope; 1203, upper edge folding slope; 13, upper support plate; 14, movable plugging mechanism; 1401, sixth motor; 1402, plugging plate; 1403, fifth eccentric rod; 15, passageway; 16, horizontal guide plate. DETAILED DESCRIPTION

[0031] Various exemplary embodiments, features, and aspects of the present application will be described herein below with reference to the drawings. The same reference numbers in different drawings represent the same or similar elements. Although various aspects of embodiments are illustrated in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0032] The term "exemplary" is used herein in the sense of being an example, instance, or illustration. Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0033] In addition, numerous specific details are given in the following detailed description in order to provide a thorough understanding. Those of ordinary skill in the art will realize that the application can be practiced without certain specific details being presented. In some instances, well-known methods, procedures, components, and elements have not been described in detail in order to avoid obscuring aspects of the present application.

[0034] Reference will now be made to Figures 1-10The utility model discloses an edge folding and sealing forming mechanism of single paper towel packing machine, including support frame body and setting on support frame body and along paper towel bag conveying direction setting's receiving platform 4, the compact conveying mechanism and horizontal conveying mechanism in proper order, wherein: the compact conveying mechanism's both sides are provided with the movable edge guide 11 for the edge of paper towel bag one side folding, the horizontal conveying mechanism's both sides are installed with fixed edge guide 12 in proper order, when compact conveying mechanism and horizontal conveying mechanism convey paper towel bag along paper towel bag conveying direction, the both sides of paper towel bag carry out folding action in proper order: still include along the up and down distribution of support frame body's swing sealing mechanism 3 and lower film folding mechanism 5, after compact conveying mechanism compacts paper towel bag, swing sealing mechanism 3 and lower film folding mechanism 5 are used to fold film and seal processing in paper towel bag in proper order.

[0035] In the embodiment, the paper towel is pushed into the compact conveying mechanism together with the packaging film through the receiving platform 4 in synchronization, then the compact conveying mechanism performs the compacting action on the paper towel bag, the two ends of the packaging film are located on the side of the paper towel bag away from the compact conveying mechanism, then the swing sealing mechanism 3 and the lower film folding mechanism 5 move towards each other to fold the packaging film, and the swing sealing mechanism 3 then performs the sealing processing; in order to facilitate understanding of the subsequent folding directions, it is defined that the front end and the rear end along the conveying direction of the paper towel bag are the front folding edge and the rear folding edge respectively, and the upper edge and the lower edge along the vertical direction are the upper folding edge and the lower folding edge respectively; after the sealing is completed, the movable edge guide 11 preferentially performs the folding processing on the rear folding edge of the paper towel bag, then the compact conveying mechanism conveys along the conveying direction of the paper towel bag, when the paper towel bag moves, the paper towel bag sequentially performs the folding processing of the front folding edge, the lower folding edge and the upper folding edge through the fixed edge guide 12, and continuously maintains the folding state after folding, so that in the subsequent conveying process, it is ensured that the folding edges of the paper towel bag are neat and tightly attached, and the problems of looseness or rebounding do not occur.

[0036] In conclusion, the edge folding and sealing forming mechanism of the single paper towel packing machine can efficiently and stably complete the packaging process of the paper towel bag, through the cooperative work of the compact conveying mechanism, the swing sealing mechanism 3 and the movable edge guide 11 and the fixed edge guide 12, the automatic folding and sealing of the paper towel bag in the conveying process are realized, the packaging efficiency and quality are effectively improved, meanwhile, the neatness and tightness of the folding edges of the paper towel bag are ensured, and the problems of looseness or rebounding after packaging are effectively avoided.

[0037] Further, the support frame body includes a rack 1 and an upper support plate 13, a movable frame 2 is vertically and slidably installed between the rack 1 and the upper support plate 13, and a lifting adjusting mechanism 10 is connected and installed on the rack 1 and used for adjusting the vertical height of the movable frame 2.

[0038] Exemplarily, in one embodiment, the lifting adjusting mechanism 10 comprises a plurality of vertical slide rods 1005 fixedly connecting the rack 1 and the upper support plate 13, and two movable racks 2 symmetrically arranged and slidingly installed on the vertical slide rods 1005; the lifting adjusting mechanism 10 further comprises a screw rod 1004 rotatably installed on the upper support plate 13 and threadedly connected with the movable rack 2, and the screw rod 1004 is rotatably connected with a connecting shaft 1003 rotatably installed on the upper support plate 13 through a bevel gear set 1002, and the connecting shaft 1003 is connected with a hand wheel 1001 or a driving motor.

[0039] When it is required to package paper towel packages with different thicknesses, the lifting adjusting mechanism 10 can be used to adjust the movable rack 2 and the whole installed on the movable rack 2, and the adjustment can be realized in the following manner: the connecting shaft 1003 is driven to rotate by the hand wheel 1001 or the driving motor, and when the connecting shaft 1003 rotates, the screw rod 1004 is driven to rotate through the action of the bevel gear set 1002, and when the screw rod 1004 rotates, the movable rack 2 is driven to move along the axial direction of the vertical slide rod 1005, thereby realizing the height adjustment of the movable rack 2.

[0040] Please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 6 , the pressing conveying mechanism comprises a lower pressing conveying unit 8 installed on the rack 1 and an upper pressing conveying unit 9 installed on the movable rack 2, and a pressing channel for the paper towel package to enter is formed between the lower pressing conveying unit 8 and the upper pressing conveying unit 9, and the upper pressing conveying unit 9 can move up and down relative to the movable rack 2 to cooperate with the lower pressing conveying unit 8 to perform the pressing action on the paper towel package.

[0041] Specifically, the lower pressing conveying unit 8 comprises a lower pressing frame 801 installed on the rack 1 and a first conveying member installed on the lower pressing frame 801, and specifically, the first conveying member comprises two first belt rollers 803 rotatably installed on the lower pressing frame 801 and a lower pressing conveying belt 802 installed on the two first belt rollers 803, and a first backing plate is further fixed on the lower pressing frame 801, and the first backing plate is used to keep the upper conveying surface of the lower pressing conveying belt 802 in a horizontal placement state under force; the upper pressing conveying unit 9 comprises an upper pressing frame 901 and a lower pressing driving member installed on the movable rack 2 and used to drive the upper pressing frame 901 to move towards or away from the lower pressing frame 801, and a second conveying member is installed on the upper pressing frame 901, and specifically, the second conveying member comprises two second belt rollers 903 rotatably installed on the upper pressing frame 901 and an upper pressing conveying belt 902 installed on the two second belt rollers 903, and a second backing plate is further fixed on the upper pressing frame 901, and the second backing plate is used to keep the lower conveying surface of the upper pressing conveying belt 902 in a horizontal placement state under force.

[0042] In the embodiment, the lower pressing driving member is arranged to drive the upper pressing frame 901 to move up and down in the vertical direction. When the upper pressing frame 901 moves up, the height of the pressing channel is increased, and the paper towel package is conveniently put into the pressing channel. Then, the lower pressing driving member drives the upper pressing frame 901 to move down, and the upper pressing conveying belt 902 and the second pad plate are cooperated to perform the pressing action on the paper towel package, so as to improve the compactness of the paper towel package and reduce the space occupation.

[0043] For example, in an embodiment, the lower pressing driving member comprises a connecting frame 904 fixed on the upper pressing frame 901, a fourth motor 905 installed on the movable frame 2, a third eccentric rod 906 fixed at the output end of the fourth motor 905, and a third movable connecting rod 907 rotatably connected to the third eccentric rod 906 and the connecting frame 904. When the fourth motor 905 drives the third eccentric rod 906 to rotate, the connecting frame 904, the upper pressing frame 901 and the whole installed on the upper pressing frame 901 are driven to move up and down through the action of the third movable connecting rod 907.

[0044] Please refer to Figures 11-14 , the movable frame 2 is further fixed with a horizontal guide plate 16, and a channel 15 for the ironing mechanism 3 to pass through is formed between the horizontal guide plate 16 and the upper pressing conveying unit 9. The movable frame 2 is further provided with a movable blocking mechanism 14 for blocking or opening the channel 15. When the movable blocking mechanism 14 blocks the channel 15, the vertical downward side of the horizontal guide plate 16, the movable blocking mechanism 14 and the upper pressing conveying unit 9 is in the same horizontal plane.

[0045] The movable blocking mechanism 14 comprises a blocking plate 1402 and two fifth eccentric rods 1403 vertically fixed at both ends of the blocking plate 1402. The two fifth eccentric rods 1403 are rotatably connected to the movable frame 2, and one of the fifth eccentric rods 1403 is driven to rotate by a sixth motor 1401 installed on the movable frame 2.

[0046] After the ironing mechanism 3 moves up and is higher than the upper end surface of the horizontal guide plate 16, the sixth motor 1401 drives the fifth eccentric rod 1403 to rotate, thereby driving the blocking plate 1402 to rotate to the horizontal placement state. At this time, the bottom of the blocking plate 1402 and the bottom of the horizontal guide plate 16 are in the same horizontal plane, so that after the paper towel is pushed onto the horizontal guide plate 16 and the receiving platform 4, it continues to move without folding due to the existence of the channel 15, so that the paper towel moves more smoothly.

[0047] Please refer to Figure 1 、 Figure 2 、 Figure 7 and Figure 8The horizontal conveying mechanism comprises a lower conveying unit 7 mounted on the frame 1 and an upper conveying unit 6 mounted on the movable frame 2, and a conveying channel is formed between the upper conveying unit 6 and the lower conveying unit 7.

[0048] Specifically, the upper conveying unit 6 comprises an upper conveying frame 601 and an upper conveying belt 602 mounted on the upper conveying frame 601, and the lower conveying unit 7 comprises a lower conveying frame 701 and a lower conveying belt 702 mounted on the lower conveying frame 701. Of course, the upper conveying belt 602 and the lower conveying belt 702 both comprise a rotating shaft, a pulley and a conveying belt, and when the upper conveying unit 6 and the lower conveying unit 7 are in operation, the paper towel package in the conveying channel is conveyed along the paper towel package conveying direction.

[0049] Please refer to Figure 10 The movable guide edge device 11 comprises two symmetrical movable connecting plates 1102 which are fixed to each other, the movable connecting plates 1102 are slidably connected with guide rails 1103 mounted on the frame 1, and a folding edge device 1101 is mounted on the movable connecting plates 1102; and a reciprocating driving device is arranged for driving the two movable connecting plates 1102 to move back and forth along the paper towel package conveying direction, and when the movable connecting plates 1102 move, the folding edge device 1101 is driven to move, thereby folding the rear folding edge of the paper towel package.

[0050] For example, in an embodiment, the reciprocating driving device comprises a fifth motor 1106 mounted on the frame 1, a fourth eccentric rod 1105 is fixed to the output shaft of the fifth motor 1106, a fourth movable connecting rod 1104 is rotatably mounted on the fourth eccentric rod 1105, and the other end of the fourth movable connecting rod 1104 is rotatably connected with the movable connecting plate 1102.

[0051] Please refer to Figure 7 The fixed guide edge device 12 is symmetrically arranged and fixed on both sides of the horizontal conveying mechanism, and the fixed guide edge device 12 comprises a side folding edge head 1201, a lower folding edge inclined surface 1202 and an upper folding edge inclined surface 1203 which are sequentially arranged along the paper towel package conveying direction; the lower folding edge inclined surface 1202 gradually inclines upward along the paper towel package conveying direction; and the upper folding edge inclined surface 1203 gradually inclines downward along the paper towel package conveying direction.

[0052] When the paper towel package moves along the paper towel package conveying direction, the paper towel package first contacts the side fold head 1201, and under the action of the side fold head 1201, the front fold is folded, and then the paper towel package enters the two fixed edge guides 12 and continuously moves, when the paper towel package moves to the lower fold bevel 1202, the lower fold located below enters the lower fold bevel 1202 and is gradually folded upward, when the paper towel package moves to the upper fold bevel 1203, the upper fold is gradually folded downward along the upper fold bevel 1203, so that the automatic side fold processing of the paper towel package is finally realized. This automatic side fold processing method does not need too much manual intervention, improves the production efficiency, and moreover, the symmetrical arrangement of the fixed edge guides 12 and the reasonable design of the fold positions ensure that the paper towel package is uniformly stressed during the folding process, so that the folded paper towel package is neat and regular in appearance, and the quality of the product is improved.

[0053] Referring to Figure 4 , the ironing mechanism 3 comprises a fixed frame 301 mounted on the upper support plate 13 and a movable mounting plate 305 slidingly mounted on the fixed frame 301, the movable mounting plate 305 is driven to reciprocate by a driving unit mounted on the fixed frame 301; an upper folding film plate 308 fixed on the movable mounting plate 305 to move along the vertical direction with the movable mounting plate 305; and an ironing plate 307 rotatably mounted on the movable mounting plate 305 and driven to rotate by a second motor 306 mounted on the movable mounting plate 305.

[0054] For example, the driving unit comprises a first motor 302 mounted on the fixed frame 301 and a first eccentric rod 303 fixed on the output shaft of the first motor 302, and further comprises a first movable connecting rod 304, both ends of the first movable connecting rod 304 are rotatably connected with the first eccentric rod 303 and the movable mounting plate 305, when the first motor 302 works, the movable mounting plate 305 and the whole mounted on the movable mounting plate 305 are driven to move up and down by the action of the first eccentric rod 303 and the first movable connecting rod 304, so as to drive the upper folding film plate 308 to move downward to realize the film folding process, when the upper folding film plate 308 completes the film folding, the second motor 306 drives the ironing plate 307 to rotate towards the upper folding film plate 308 to realize the sealing treatment of the packaging film.

[0055] Referring to Figure 9 , the lower film folding mechanism 5 comprises a lower folding film plate 501 vertically sliding through the rack 1; a third motor 504, the output shaft of the third motor 504 is fixed with a second eccentric rod 503; and a second movable connecting rod 502, both ends of the second movable connecting rod 502 are rotatably connected with the lower folding film plate 501 and the second eccentric rod 503.

[0056] When the third motor 504 is in action, the lower folding film plate 501 is driven to move up and down by the second eccentric rod 503 and the second movable connecting rod 502, so as to realize the folding film processing of the packaging film before the paper towel package is sealed by the upper folding film plate 308.

[0057] It should be noted that the sealing position of the swing sealing plate 307 is lower than the upper folding film plate 308, and the upper folding film plate 308 and the lower folding film plate 501 are arranged in a vertical direction. When the swing sealing plate 307 performs sealing, the sealing position of the swing sealing plate 307 can be in contact with the lower folding film plate 501.

[0058] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

[0059] In addition, it should be understood that although the present application is described in the specification in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hem-seal forming mechanism of a paper towel single packaging machine, characterized by, The supporting frame body comprises a supporting frame body, a supporting platform (4) arranged on the supporting frame body and sequentially arranged along the conveying direction of the paper towel package, a pressing conveying mechanism and a horizontal conveying mechanism, wherein: the two sides of the pressing conveying mechanism are provided with movable edge guides (11) for folding the side edge of the paper towel package; the two sides of the horizontal conveying mechanism are symmetrically provided with fixed edge guides (12), and when the pressing conveying mechanism and the horizontal conveying mechanism convey the paper towel package along the conveying direction of the paper towel package, the two sides of the paper towel package sequentially perform the edge folding action; further comprising a swing ironing mechanism (3) and a lower film folding mechanism (5) distributed up and down on the supporting frame body, and after the pressing conveying mechanism presses the paper towel package, the swing ironing mechanism (3) and the lower film folding mechanism (5) are used for sequentially folding and ironing the film of the paper towel package.

2. A hemming and sealing forming mechanism of a paper towel single packaging machine according to claim 1, characterized in that, The supporting frame body comprises a rack (1) and an upper supporting plate (13), a movable frame (2) is vertically and slidably arranged between the rack (1) and the upper supporting plate (13), and a lifting adjusting mechanism (10) is connected and arranged on the rack (1) and used for adjusting the vertical height of the movable frame (2).

3. A hem-seal forming mechanism for a paper towel single-packing machine according to claim 2, characterized in that, The lifting adjusting mechanism (10) comprises: a plurality of vertical slide rods (1005) fixedly connected with the rack (1) and the upper supporting plate (13), and two movable frames (2) symmetrically arranged and slidably arranged on the vertical slide rods (1005); further comprising a screw rod (1004) rotatably arranged on the upper supporting plate (13) and threadedly connected with the movable frame (2), the screw rod (1004) is rotatably connected with a connecting shaft (1003) rotatably arranged on the upper supporting plate (13) through a bevel gear set (1002), and the connecting shaft (1003) is connected with a hand wheel (1001) or a driving motor.

4. A hem-seal forming mechanism for a paper towel single-packing machine according to claim 2, wherein The pressing conveying mechanism comprises: a lower pressing conveying unit (8) arranged on the rack (1) and an upper pressing conveying unit (9) arranged on the movable frame (2), and a pressing channel for the paper towel package to enter is formed between the lower pressing conveying unit (8) and the upper pressing conveying unit (9), and the upper pressing conveying unit (9) can move up and down relative to the movable frame (2) to cooperate with the lower pressing conveying unit (8) to perform the pressing action on the paper towel package.

5. A hem-seal forming mechanism for a paper towel single-packing machine according to claim 4, wherein The movable frame (2) is further provided with a horizontal guide plate (16), a channel (15) for the swing ironing mechanism (3) to pass through is formed between the horizontal guide plate (16) and the upper pressing conveying unit (9), and the movable frame (2) is further provided with a movable blocking mechanism (14) for blocking or opening the channel (15), and when the movable blocking mechanism (14) blocks the channel (15), the vertical downward side of the horizontal guide plate (16), the movable blocking mechanism (14) and the upper pressing conveying unit (9) are in the same horizontal plane.

6. A hem-seal forming mechanism for a paper towel single bagging machine according to claim 2, wherein The horizontal conveying mechanism comprises a lower conveying unit (7) arranged on the rack (1) and an upper conveying unit (6) arranged on the movable frame (2), and a conveying channel is formed between the upper conveying unit (6) and the lower conveying unit (7).

7. A hemming and sealing forming mechanism of a paper towel single packaging machine according to claim 1, wherein, The movable edge guide (11) comprises: two symmetrical and fixed movable connecting plates (1102), which are provided with edge folding parts (1101); and a reciprocating driving part for driving the two movable connecting plates (1102) to move reciprocally along the paper towel package conveying direction.

8. A hemming and sealing forming mechanism of a paper towel single packaging machine according to claim 1, characterized in that, The fixed edge guide (12) is symmetrically provided with two fixed edge guides, which are fixed on the two sides of the horizontal conveying mechanism, and sequentially comprises a side edge folding head (1201), a lower edge folding inclined surface (1202) and an upper edge folding inclined surface (1203) along the paper towel package conveying direction; the lower edge folding inclined surface (1202) gradually inclines upward along the paper towel package conveying direction; and the upper edge folding inclined surface (1203) gradually inclines downward along the paper towel package conveying direction.

9. A hemming and sealing forming mechanism of a paper towel single packaging machine according to claim 2, characterized in that, The swing ironing mechanism (3) comprises: a fixed frame (301) installed on the upper support plate (13) and a movable mounting plate (305) slidably mounted on the fixed frame (301), wherein the movable mounting plate (305) is driven to move reciprocally by a driving unit installed on the fixed frame (301); an upper folding film plate (308) fixed on the movable mounting plate (305) to move along the vertical direction with the movable mounting plate (305); and a swing ironing plate (307) rotatably installed on the movable mounting plate (305) and driven to rotate by a second motor (306) installed on the movable mounting plate (305).

10. A hemming and sealing forming mechanism of a paper towel single packaging machine according to claim 2, characterized in that, The lower edge folding mechanism (5) comprises: a lower edge folding film plate (501) vertically slidably penetrating through the rack (1); a third motor (504), wherein an output shaft of the third motor (504) is fixed with a second eccentric rod (503); and a second movable connecting rod (502), wherein two ends of the second movable connecting rod (502) are rotatably connected with the lower edge folding film plate (501) and the second eccentric rod (503), respectively.

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