A winding equipment for plastic composite bag production

Abstract

The application belongs to the technical field of plastic bag production, and particularly relates to a winding equipment for plastic composite bag production, which aims at the problem that the winding degree of the plastic composite bag is insufficient after winding, and the plastic composite bag is loose and scattered during transportation. The winding equipment comprises a retaining seat and a movable side seat, a sliding seat is arranged on one side of the movable side seat close to the retaining seat, and the movable side seat is movably connected with the retaining seat. The winding equipment disclosed by the application utilizes a winding motor to drive a winding rod to rotate and wind the plastic composite bag. Since the conveying of the plastic composite bag is in a suspended state during winding, the whole winding process is carried out under the gravity of the movable motor frame, so that the plastic composite bag is in a straightened state due to the tension during winding, the winding degree of the plastic composite bag after winding is improved, and the winding mode of pulling can effectively avoid the loosening of the plastic composite bag caused by insufficient force during winding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic bag production, in particular to a winding equipment for plastic composite bag production. BACKGROUND

[0002] Plastic bags are bags made of plastic (commonly used plastics include polypropylene, polyester, nylon, etc.) as the main raw material, which are essential items in people's daily life and are often used to pack other items.

[0003] Plastic composite bags are a kind of packaging bags commonly used in our daily life, which are made of two or more materials through machine compounding. The composite materials include PE (polyethylene), PP (polypropylene), PPE (polyphenyl ether), OPP (o-phenyl phenol), POF (plastic optical fiber) and composite film, etc. Due to the multi-layer material, the composite bag has strong anti-puncture and anti-tear capacity, and is suitable for vacuum packaging or general packaging of food, chemical industry, medicine, electronic products, etc.

[0004] The plastic composite bag needs to be wound during packaging to facilitate storage and later transportation. The current winding device uses conveying rollers for conveying and winding. Since the rotation between the conveying rollers is usually synchronous, the plastic composite bag may not be tightly wound after winding, resulting in loose and scattered phenomenon during transportation. SUMMARY

[0005] The present application discloses a winding equipment for plastic composite bag production, which aims to solve the technical problem of insufficient tightness of the plastic composite bag after winding in the background technology, resulting in loose and scattered phenomenon during transportation.

[0006] The winding equipment for plastic composite bag production comprises a retaining seat and a movable side seat. A sliding seat is arranged on one side of the movable side seat close to the retaining seat. The movable side seat is movably connected with the retaining seat, and a winding rod is arranged between the retaining seat and the movable side seat. An L-shaped top table is fixedly connected to the upper side of the movable side seat, and a winding assembly is arranged on the L-shaped top table. The winding assembly comprises a movable motor bracket and a moving wheel. A sliding groove is formed in the movable side seat, and the movable motor bracket is movably connected with the movable side seat. A winding motor is fixedly connected to the movable motor bracket. The output end of the winding motor is connected with a rotating shaft through a shaft coupling. The other end of the rotating shaft is movably connected with the movable motor bracket. A driving gear is fixedly connected to the outside of the rotating shaft. The moving wheel is located on the upper side of the L-shaped top table. A connecting rod is fixedly connected to the moving wheel. The other end of the connecting rod is movably connected with the movable motor bracket. A driven gear is fixedly connected to the outside of the connecting rod. The driven gear is engaged with the driving gear through a gear slot.

[0007] Through being provided with the winding assembly, the winding motor is used for driving the winding rod to rotate to wind the plastic composite bag, since the conveying of the plastic composite bag is in the suspended state during the winding process, the whole winding process is carried out under the gravity of the movable motor frame, thus the plastic composite bag is in the straightened state due to the tension during winding, the close degree of the plastic composite bag after winding is improved, and the winding mode of pulling can effectively avoid the relaxation of the plastic composite bag during winding.

[0008] In a preferred scheme, the movable side seat is provided with a reverse conveying box, the reverse conveying box is located below the L-shaped top table, the L-shaped top table is provided with a rectangular groove, the conveying belt is located inside the reverse conveying box, and the outer part of the moving wheel is bonded with the friction increasing wheel sleeve.

[0009] Through being provided with the conveying belt and the friction increasing wheel sleeve, the moving direction of the conveying belt is opposite to that of the moving wheel during winding, the reverse force of the moving wheel during movement is increased (the tension of the plastic composite bag during winding is increased, and the plastic composite bag needs to provide the driving force for the movement of the movable motor frame and the moving wheel), so that the winding effect is further improved; the friction increasing wheel sleeve can increase the contact effect between the moving wheel and the conveying belt, so that the friction coefficient between the two is improved.

[0010] In a preferred scheme, the retaining seat is provided with a rail rod, and the retaining seat is provided with a winding reset assembly; the winding reset assembly comprises a moving seat and a turnover disc, the moving seat is provided with symmetrical circular holes, the moving seat is movably connected with the rail rod, a convex rod is movably connected to one side of the moving seat away from the movable side seat, a disc seat is fixedly connected to one side of the retaining seat away from the movable side seat, the disc seat is provided with a circular hole, the turnover disc is movably connected with the disc seat, two symmetrical force rods are arranged on the turnover disc, a driving motor is fixedly connected to one side of the retaining seat close to the movable side seat, a shaft is connected to the output end of the driving motor through a shaft coupling, and the other end of the shaft is fixedly connected with the turnover disc through the retaining seat and the disc seat.

[0011] Through being provided with the winding reset assembly, the movable motor frame can be reset after the winding assembly completes the winding operation of the plastic composite bag with a fixed length, so as to facilitate the subsequent winding operation, so as to ensure the continuity of the whole winding operation.

[0012] In a preferred scheme, the mobile wheel and the mobile seat are provided with hexagonal sockets, two hexagonal sockets are located on the opposite sides of the mobile wheel and the mobile seat, and the two ends of the winding rod are provided with hexagonal convex plugs, and the two ends of the winding rod are movably connected with the hexagonal sockets of the mobile wheel and the mobile seat; one side of the retaining seat is fixedly connected with a front frame, the front frame is provided with a transfer roller, the upper side of the front frame is fixedly connected with a top frame, one side of the top frame close to the transfer roller is fixedly connected with a support seat, and the support seat is provided with a wind-assisted flattening assembly, and the lower side of the top frame is provided with a cutting assembly.

[0013] By setting the winding rod, the winding rod is inserted into the mobile wheel and the mobile seat, which can ensure the rotation of the winding rod with the rotation of the mobile wheel, and also serves as the connection between the mobile wheel and the mobile seat to ensure the synchronous horizontal movement of the mobile wheel and the mobile seat.

[0014] In a preferred scheme, the wind-assisted flattening assembly includes a wind box and a blower, the wind box is fixedly connected with the support seat, the inside of the wind box is provided with two symmetrical blow tubes, the two blow tubes are provided with three blow openings, the three blow openings are distributed at equal intervals in a circle, the outside of the three blow openings is provided with an outwardly expanding arc-shaped baffle, the two ends of the outwardly expanding arc-shaped baffle are fixedly connected with the blow tubes, one end of the two blow tubes is provided with an air inlet, and the upper side of the wind box is fixedly connected with the blower, the blower is provided with two air conveying hoses, the other end of the two air conveying hoses is movably connected with the air inlets of the two blow tubes.

[0015] By setting the wind-assisted flattening assembly, the wind-assisted flattening assembly can be used to assist the flattening of the plastic composite bag by blowing air from the middle to the sides, which can improve the spreading degree of the plastic composite bag, thereby enhancing the subsequent winding effect and avoiding wrinkles during the conveying process to cause unevenness after winding.

[0016] In a preferred scheme, the cutting assembly includes a pressing seat and a base, the pressing seat is located below the top frame, the top frame is provided with a mounting groove, the inside of the mounting groove is fixedly connected with a first hydraulic cylinder, the output end of the first hydraulic cylinder is fixedly connected with the upper side of the pressing seat, the lower side of the pressing seat is provided with a force applying plate, the upper side of the force applying plate is fixedly connected with a plurality of symmetrical slide rods, the pressing seat is provided with a plurality of symmetrical round holes, the plurality of slide rods are movably connected with the plurality of round holes of the pressing seat, the outside of the plurality of slide rods is movably connected with a plurality of return springs, the two ends of the return springs are fixedly connected with the lower side of the pressing seat and the upper side of the force applying plate, and the side of the pressing seat close to the transfer roller is provided with a blade groove, the inside of the blade groove is fixedly connected with a cutting knife, and the base is located below the force applying plate, and the two ends of the base are fixedly connected with the two sides of the front frame.

[0017] Through the setting of the cutting assembly, the plastic composite bag can be cut after being rolled up by the single rolling rod, so as to facilitate the replacement of the rolling rod, and the plastic composite bag is fixed by the synchronously moving pressing plate before cutting, so as to facilitate the installation operation of the plastic composite bag after the replacement of the rolling rod, thereby improving the convenience of the device in use.

[0018] In a preferred scheme, the front frame is provided with an interval stopping assembly, and the interval stopping assembly is located below the transfer roller rod; the interval stopping assembly comprises a fixed frame and a stopping plate, two ends of the fixed frame are fixedly connected with the two side outer walls of the front frame, the stopping plate is located on one side of the fixed frame away from the retaining seat, a rubber sheet is arranged on one side of the stopping plate close to the fixed frame, and a push plate is arranged on the other side of the fixed frame, four limit rods symmetrically arranged in pairs are fixedly connected between the push plate and the stopping plate, four circular holes symmetrically arranged in pairs are formed in the fixed frame, the four limit rods are movably connected in the four circular holes, and a rectangular mounting groove is formed in one side of the fixed frame close to the push plate, a second hydraulic cylinder is fixedly connected in the rectangular mounting groove, and the output end of the second hydraulic cylinder is fixedly connected with the push plate.

[0019] Through the setting of the interval stopping assembly, the plastic composite bag can be fixed and stopped during the conveying process, so as to facilitate the rolling operation.

[0020] As can be seen from the above, the rolling equipment for plastic composite bag production provided by the application has the advantages that the plastic composite bag is rolled by the rolling rod driven by the rolling motor, the conveying of the plastic composite bag is stopped during the rolling process, the rolling process is carried out under the gravity of the movable motor frame, the plastic composite bag is in a straight state due to the tension during rolling, the close degree of the plastic composite bag after rolling is improved, and the tension type rolling method can effectively avoid the relaxation of the plastic composite bag during rolling. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The figure is a schematic diagram of the overall structure of the rolling equipment for plastic composite bag production proposed by the application;

[0022] Figure 2 The figure is a schematic diagram of the retaining seat and movable side seat structure of the rolling equipment for plastic composite bag production proposed by the application;

[0023] Figure 3 The figure is a schematic diagram of the rolling assembly structure of the rolling equipment for plastic composite bag production proposed by the application;

[0024] Figure 4 The figure is a schematic diagram of the rolling reset assembly structure of the rolling equipment for plastic composite bag production proposed by the application; The figure is a schematic diagram of the rolling reset assembly structure of the rolling equipment for plastic composite bag production proposed by the application;

[0025] Figure 5 A winding rod structure schematic view of a winding equipment for plastic composite bag production is provided in the present application.

[0026] Figure 6 A wind auxiliary assembly structure schematic view of a winding equipment for plastic composite bag production is provided in the present application.

[0027] Figure 7 A cutting assembly structure schematic view of a winding equipment for plastic composite bag production is provided in the present application.

[0028] Figure 8 A interval stop assembly structure schematic view of a winding equipment for plastic composite bag production is provided in the present application.

[0029] In the figure: 1, retaining seat; 2, movable side seat; 3, L-shaped top table; 4, winding assembly; 401, movable motor frame; 402, moving wheel; 403, winding motor; 404, driving gear; 405, connecting rod; 406, pulling gear; 5, reverse conveying box; 6, conveying belt; 7, friction increasing wheel cover; 8, rail; 9, winding reset assembly; 901, moving seat; 902, turnover disc; 903, protruding rod; 904, disc seat; 905, force applying rod; 906, driving motor; 10, front frame; 11, transfer roller; 12, top frame; 13, support seat; 14, wind auxiliary assembly; 1401, wind box; 1402, air blower; 1403, blowing cylinder; 1404, blowing port; 1405, outward expanding arc-shaped baffle; 1406, air inlet; 1407, air conveying hose; 15, cutting assembly; 1501, pressing seat; 1502, base; 1503, first hydraulic cylinder; 1504, force applying plate; 1505, sliding rod; 1506, reset spring; 1507, cutting knife; 16, interval stop assembly; 1601, fixed frame; 1602, lagging plate; 1603, rubber sheet; 1604, push plate; 1605, limiting rod; 1606, second hydraulic cylinder; 17, winding rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0031] The winding equipment for plastic composite bag production disclosed in the present application is mainly applied to the scene where the plastic composite bag is not close enough.

[0032] REFERENCE Figures 1-3The utility model relates to a kind of winding equipment for plastic composite bag production, including retaining seat 1 and movable side seat 2, movable side seat 2 is close to the side of retaining seat 1 and is provided with slide seat, movable side seat 2 is movably connected between retaining seat 1, and retaining seat 1 is movably connected between movable side seat 2 and is provided with winding rod 17, the upper side of movable side seat 2 is connected with L-shaped top table 3 by bolt, and L-shaped top table 3 is provided with winding assembly 4, winding assembly 4 includes movable motor bracket 401 and moving wheel 402, and movable side seat 2 is provided with sliding slot, movable motor bracket 401 is movably connected between movable side seat 2, movable motor bracket 401 is connected with winding motor 403 by bolt on the output end, winding motor 403 is connected with rotating shaft by shaft coupling, the other end of rotating shaft is movably connected with movable motor bracket 401 by bearing, and the outside of rotating shaft is connected with driving gear 404 by bolt, moving wheel 402 is located in the upper side of L-shaped top table 3, moving wheel 402 is connected with connecting rod 405 by bolt, the other end of connecting rod 405 is movably connected with movable motor bracket 401 by bearing, and the outside of connecting rod 405 is connected with driving gear 406 by bolt, driving gear 406 is engaged with driving gear 404 by tooth slot.

[0033] Specifically, when the winding operation of plastic composite bag is carried out, the winding rod 17 is moved to the end of the retaining seat 1 and the movable side seat 2 together with the movable motor bracket 401 (at this time the conveying of the plastic composite bag is suspended), the winding motor 403 drives the driving gear 404 to rotate and engage the driving gear 406, and the moving wheel 402 rotates to drive the winding rod 17 to rotate to wind the plastic composite bag. During the continuous winding process, the movable motor bracket 401 and the winding rod 17 will move under the force due to the tension of the plastic composite bag, from the end to the front of the retaining seat 1 and the movable side seat 2, to complete the winding of the plastic composite bag of a fixed length.

[0034] In a specific application scenario, the winding assembly 4 is suitable for the winding link of the plastic composite bag, that is, the winding assembly 4 drives the winding rod 17 to rotate by the winding motor 403 to wind the plastic composite bag. Since the conveying of the plastic composite bag is in a suspended state during the winding process, the entire winding process is carried out under the gravity of the movable motor bracket 401, so that the plastic composite bag will be in a straightened state due to the tension when winding, improving the close degree of the plastic composite bag after winding. The way of pulling and winding can effectively avoid the slack caused by insufficient force when winding the plastic composite bag.

[0035] Referring to Figure 1 And Figure 3 The movable side seat 2 is provided with a reverse conveying box 5, which is located below the L-shaped top table 3. A rectangular groove is formed in the L-shaped top table 3, and a conveyor belt 6 is arranged below the rectangular groove. The conveyor belt 6 is located in the interior of the reverse conveying box 5, and a friction-increasing wheel sleeve 7 is attached to the exterior of the moving wheel 402.

[0036] Specifically, the winding process conveying belt 6 is always in operation, the movement direction of the conveying belt 6 is opposite to that of the moving wheel 402 during winding, that is, the movement direction of the conveying belt 6 is from the front end to the end of the fixed seat 1 and the movable side seat 2; the movement direction of the conveying belt 6 is opposite to that of the moving wheel 402 during winding, which can increase the reverse force of the moving wheel 402 during movement (the tension of the plastic composite bag increases, and the plastic composite bag needs to provide the driving force for the movement of the movable motor frame 401 and the moving wheel 402), thereby further improving the winding effect; during the winding process, the winding motor 403 drives the winding rod 17 to rotate to perform the winding operation on the plastic composite bag, and one end of the plastic composite bag is pressed and fixed by the stopping plate 1602; as the winding operation proceeds, the winding assembly 4 and the winding rod 17 will move towards the position of the top frame 12, and the movement direction of the moving wheel 402 is opposite to that of the winding rod 17 (the rotation direction of the moving wheel 402 is counterclockwise), Figure 1 As shown, the rotation direction of the moving wheel 402 and the winding rod 17 is counterclockwise), the theoretical movement direction of the moving wheel 402 is away from the position of the top frame 12, and actually, due to the reduction of the distance of the plastic composite bag, the moving wheel 402 moves towards the position of the top frame 12 (opposite to the theoretical movement direction), that is, a force much larger than the ideal movement state of the moving wheel 402 needs to be provided to the moving wheel 402 at this time, and this force acts on the plastic composite bag, so that the tension of the plastic composite bag increases, and the reverse conveying belt 6 increases the friction between the moving wheel 402 and the reverse conveying box 5, that is, further prevents the moving wheel 402 from moving towards the position of the top frame 12, so as to increase the tension of the plastic composite bag again; the friction increasing wheel sleeve 7 can increase the contact effect between the moving wheel 402 and the conveying belt 6, thereby increasing the friction coefficient therebetween.

[0037] Referring to Figure 1 , Figure 2 and Figure 4 , the fixed seat 1 is provided with a rail 8, and the fixed seat 1 is provided with a winding reset assembly 9; the winding reset assembly 9 comprises a moving seat 901 and a turnover disc 902, the moving seat 901 is provided with symmetrical circular holes, the moving seat 901 and the rail 8 are connected in sliding mode, the moving seat 901 is rotatably connected with a lug 903 on the side away from the movable side seat 2 through a bearing, and the side away from the movable side seat 2 of the fixed seat 1 is connected with a disc seat 904 through a bolt, the disc seat 904 is provided with a circular hole, the turnover disc 902 and the disc seat 904 are rotatably connected through a bearing, the turnover disc 902 is provided with two symmetrical force applying rods 905, the side close to the movable side seat 2 of the fixed seat 1 is connected with a driving motor 906 through a bolt, the output end of the driving motor 906 is connected with a rotating shaft through a coupling, and the other end of the rotating shaft is connected with the turnover disc 902 through a bolt.

[0038] Specifically, when the movable motor frame 401 is located at the most front end of the retaining seat 1 and the movable side seat 2, the driving motor 906 drives the turnover disc 902 to rotate, and the force applying rod 905 will be in contact with the convex rod 903 after being lifted, and with the continuous turnover of the force applying rod 905 driven by the turnover disc 902, the convex rod 903 will be forced to drive the moving seat 901 to move from the most front end to the most end of the retaining seat 1 and the movable side seat 2.

[0039] In a specific application scenario, the winding reset assembly 9 is suitable for moving the movable motor frame 401 from the most front end to the most end of the retaining seat 1 and the movable side seat 2, that is, the winding reset assembly 9 can reset the movable motor frame 401 after the winding assembly 4 completes the winding operation of the plastic composite bag of a fixed length, so as to facilitate the subsequent winding operation, thereby ensuring the continuity of the overall winding operation.

[0040] It should be noted that the driving motor 906 is in an intermittent working state, and the driving turnover disc 902 is rotated by 180° in a single work.

[0041] Referring to Figure 1 and Figure 5 , the moving wheel 402 and the moving seat 901 are both provided with hexagonal sockets, two hexagonal sockets are located on opposite sides of the moving wheel 402 and the moving seat 901, and the two ends of the winding rod 17 are both provided with hexagonal convex plugs, and the two ends of the winding rod 17 are respectively inserted into the hexagonal sockets of the moving wheel 402 and the moving seat 901; one side of the retaining seat 1 is connected with a front frame 10 through bolts, the front frame 10 is provided with a transfer roller 11, the upper side of the front frame 10 is connected with a top frame 12 through bolts, one side of the top frame 12 close to the transfer roller 11 is connected with a support seat 13 through bolts, and the support seat 13 is provided with a wind power auxiliary flat assembly 14, and the lower side of the top frame 12 is provided with a cutting assembly 15.

[0042] Specifically, the winding rod 17 is inserted into the moving wheel 402 and the moving seat 901, which can ensure that it rotates with the rotation of the moving wheel 402, and at the same time, as the connection between the moving wheel 402 and the moving seat 901, it ensures the synchronous horizontal movement of the moving wheel 402 and the moving seat 901.

[0043] Referring to Figure 1 and Figure 6The wind power auxiliary flattening assembly 14 comprises a wind box 1401 and a blower 1402. The wind box 1401 is connected to the support 13 by bolts. The wind box 1401 is internally provided with two symmetrical blow tubes 1403. Three blow openings 1404 are formed in each of the blow tubes 1403. The three blow openings 1404 are circumferentially and equidistantly distributed. Each of the three blow openings 1404 is externally provided with an outwardly expanding arc-shaped baffle 1405. The outwardly expanding arc-shaped baffles 1405 are connected to the blow tubes 1403 by bolts at both ends. Each of the two blow tubes 1403 is provided with an air inlet 1406 at one end. The blower 1402 is connected to the upper side of the wind box 1401 by bolts. The blower 1402 is provided with two air conveying hoses 1407. The other ends of the two air conveying hoses 1407 are rotatably connected to the air inlets 1406 of the two blow tubes 1403 by bearings.

[0044] Specifically, the blower 1402 sucks in gas and pressurizes the gas to be delivered to the two blow tubes 1403 through the air conveying hoses 1407. The pressurized gas is discharged from the three blow openings 1404. The discharged gas directly contacts the outwardly expanding arc-shaped baffles 1405, so as to change the direction of the airflow, so that the gas moves from the middle part to the outer side of the plastic composite bag. In the process, the surface of the plastic composite bag is blown to assist flattening of the surface.

[0045] In a specific application scenario, the wind power auxiliary flattening assembly 14 is suitable for assisting flattening of the surface of the plastic composite bag. That is, the wind power auxiliary flattening assembly 14 can be used to blow from the middle part to the two sides to assist flattening of the plastic composite bag, so as to improve the spreading degree of the plastic composite bag, thereby enhancing the subsequent rolling effect and avoiding wrinkles in the conveying process to cause unevenness after rolling.

[0046] Referring to Figure 1 and Figure 7The cutting assembly 15 comprises a pressing base 1501 and a base 1502, the pressing base 1501 is located below the top frame 12, a mounting groove is formed in the top frame 12, a first hydraulic cylinder 1503 is connected to the inside of the mounting groove through bolts, the output end of the first hydraulic cylinder 1503 is connected to the upper side of the pressing base 1501 through bolts, the lower side of the pressing base 1501 is provided with a force plate 1504, the upper side of the force plate 1504 is connected with a plurality of symmetrical slide rods 1505 through bolts, a plurality of circular holes are formed in the pressing base 1501, the plurality of slide rods 1505 are respectively connected with the plurality of circular holes of the pressing base 1501 in a sliding manner, a reset spring 1506 is sleeved outside each of the plurality of slide rods 1505, the two ends of the reset spring 1506 are respectively connected to the lower side of the pressing base 1501 and the upper side of the force plate 1504 through bolts, and a cutting blade groove is formed in one side of the pressing base 1501 close to the transfer roller 11, a cutting blade 1507 is connected to the inside of the cutting blade groove through bolts, and the base 1502 is located below the force plate 1504, the two ends of the base 1502 are respectively connected to the two sides of the front frame 10 through bolts.

[0047] Specifically, after completing the plastic composite bag winding operation on a single winding rod 17, the first hydraulic cylinder 1503 is started to drive the pressing base 1501 to move downward, the force plate 1504 holds and fixes the plastic composite bag between the force plate 1504 and the base 1502, as the pressing base 1501 continues to move downward, the reset spring 1506 is compressed and elastically deformed, the plastic composite bag is fixed, and then the cutting blade 1507 cuts off the plastic composite bag along with the pressing base 1501;

[0048] In a specific application scenario, the cutting assembly 15 is suitable for cutting off the plastic composite bag after the single winding rod 17 completes the winding operation, that is, the cutting assembly 15 can cut off the plastic composite bag after the single winding rod 17 completes the winding operation, so as to facilitate the replacement of the winding rod 17, and at the same time, the force plate 1504 is used to hold and fix the plastic composite bag in advance before cutting, so as to facilitate the installation operation of the plastic composite bag after the replacement of the winding rod 17, thereby improving the convenience of the device in use.

[0049] Referring to Figure 1 and Figure 8The front frame 10 is provided with an interval assembly 16, and the interval assembly 16 is located below the transfer roller 11; the interval assembly 16 comprises a fixed frame 1601 and a stop plate 1602, both ends of the fixed frame 1601 are connected with the outer walls of both sides of the front frame 10 through bolts, the stop plate 1602 is located on the side of the fixed frame 1601 away from the retaining seat 1, a rubber sheet 1603 is arranged on the side of the stop plate 1602 close to the fixed frame 1601, the other side of the fixed frame 1601 is provided with a push plate 1604, four limit rods 1605 symmetrically arranged in pairs are connected between the push plate 1604 and the stop plate 1602 through bolts, four circular holes symmetrically arranged in pairs are formed in the fixed frame 1601, and the four limit rods 1605 are slidably connected in the four circular holes, respectively, a rectangular mounting groove is formed in the side of the fixed frame 1601 close to the push plate 1604, and a second hydraulic cylinder 1606 is connected in the rectangular mounting groove through bolts, and the output end of the second hydraulic cylinder 1606 is connected with the push plate 1604 through bolts.

[0050] Specifically, the conveying of the plastic composite bag is paused, and the process is as follows: the second hydraulic cylinder 1606 is extended to drive the push plate 1604 to move away from the fixed frame 1601, so that the stop plate 1602 moves towards the fixed frame 1601, and the plastic composite bag is pressed and held between the stop plate 1602 and the fixed frame 1601.

[0051] In a specific application scenario, the interval assembly 16 is suitable for the conveying link of the plastic composite bag, that is, the interval assembly 16 can press and fix the plastic composite bag during the conveying process of the plastic composite bag, pause the conveying state, and facilitate the winding operation;

[0052] It should be noted that the operation of the interval assembly 16 and the winding assembly 4 is in a synchronous state, that is, when the winding assembly 4 performs the winding operation, the second hydraulic cylinder 1606 is in an extended state, and the plastic composite film is pressed and fixed between the stop plate 1602 and the fixed frame 1601; when the winding reset assembly 9 operates, the second hydraulic cylinder 1606 is in a compressed state, and the plastic composite film can move between the stop plate 1602 and the fixed frame 1601.

[0053] Working principle: when using, during the winding operation of the plastic composite bag, the winding rod 17 is moved to the end of the fixed seat 1 and the movable side seat 2 (when the movable motor bracket 401 is located at the front end of the fixed seat 1 and the movable side seat 2, the driving motor 906 drives the turnover disc 902 to rotate, and the force rod 905 is lifted and contacted with the convex rod 903, and as the turnover disc 902 continuously turns the force rod 905, the convex rod 903 is forced to move the moving seat 901 from the front end to the end of the fixed seat 1 and the movable side seat 2), at this time the conveying of the plastic composite bag is paused (the second hydraulic cylinder 1606 extends to drive the push plate 1604 to move away from the fixed frame 1601, so that the stop plate 1602 moves towards the fixed frame 1601, and the plastic composite bag is pressed and held between the stop plate 1602 and the fixed frame 1601), the winding motor 403 drives the driving gear 404 to rotate and drive the driven gear 406, and the moving wheel 402 rotates to drive the winding rod 17 to rotate and wind the plastic composite bag, and during the continuous winding process, the movable motor bracket 401 and the winding rod 17 are forced to move from the end to the front end of the fixed seat 1 and the movable side seat 2, and the winding of the plastic composite bag of a fixed length is completed.

[0054] During the whole winding process, the air blower 1402 sucks gas and pressurizes it through the air conveying hose 1407 to the two blow tubes 1403, and the pressurized gas is discharged from the three blow ports 1404, and the discharged gas directly contacts the outwardly expanding arc-shaped baffle 1405, so as to change the direction of the gas flow, so that the gas moves from the middle part of the plastic composite bag to the outside, and the surface of the plastic composite bag is blown in the process, which assists the flattening of the surface.

[0055] After the winding operation of the plastic composite bag on the single winding rod 17 is completed, the first hydraulic cylinder 1503 is started to drive the pressing seat 1501 to move downward, the force plate 1504 presses and fixes the plastic composite bag between the force plate 1504 and the base 1502, and as the pressing seat 1501 continues to move downward, the reset spring 1506 is compressed and elastically deformed, the plastic composite bag is fixed, and then the cutting knife 1507 cuts off the plastic composite bag with the pressing seat 1501.

[0056] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A winding apparatus for plastic composite bag production, comprising a fixed seat and a movable side seat, characterized in that, The side of the movable side seat near the retaining seat is provided with a sliding seat, the movable side seat is movably connected with the retaining seat, and the retaining seat is provided with a winding rod between the retaining seat and the movable side seat. The upper side of the movable side seat is fixedly connected with an L-shaped top table, and the L-shaped top table is provided with a winding assembly. The movable side seat is provided with a reverse conveying box, the reverse conveying box is located below the L-shaped top table, a rectangular groove is formed in the L-shaped top table, a conveying belt is arranged below the rectangular groove, the conveying belt is located in the reverse conveying box, and a friction-increasing wheel sleeve is attached to the outer portion of the movable wheel. The retaining seat is provided with a rail rod and a winding reset assembly.

2. The winding apparatus for producing plastic composite bags according to claim 1, wherein The movable seat is movably connected with the rail rod, a convex rod is movably connected to the side of the movable seat away from the movable side seat, a disc seat is fixedly connected to the side of the retaining seat away from the movable side seat, a hole is formed in the disc seat, the turnover disc is movably connected with the disc seat, two symmetrical force rods are arranged on the turnover disc, a driving motor is fixedly connected to the side of the retaining seat near the movable side seat, a shaft is connected to the output end of the driving motor through a coupling, and the other end of the shaft is fixedly connected with the turnover disc.

3. The winding apparatus for producing plastic composite bags according to claim 1, characterized in that, Hexagonal sockets are formed in the movable wheel and the movable seat, two hexagonal sockets are located on the opposite sides of the movable wheel and the movable seat, and hexagonal convex plugs are arranged at the two ends of the winding rod.

4. The winding apparatus for producing plastic composite bags according to claim 3, characterized in that, The side of the retaining seat is fixedly connected with a front frame, the front frame is provided with a transfer roller, the upper side of the front frame is fixedly connected with a top frame, the side of the top frame near the transfer roller is fixedly connected with a support seat, the support seat is provided with a wind-assisted flattening assembly, and the lower side of the top frame is provided with a cutting assembly. The wind-assisted flattening assembly comprises a wind box and a blower, the wind box is fixedly connected with the support seat, two symmetrical blow tubes are arranged in the wind box, three blow openings are formed in each blow tube, the three blow openings are distributed at equal intervals in a circle, arc-shaped baffles are arranged outside the three blow openings, the arc-shaped baffles are fixedly connected between the two ends and the blow tubes, an air inlet is formed in one end of each blow tube, and the blower is fixedly connected to the upper side of the wind box. Two air conveying hoses are arranged on the blower, and the other ends of the two air conveying hoses are movably connected with the air inlets of the two blow tubes.

5. The winding apparatus for producing plastic composite bags according to claim 3, characterized in that, The cutting assembly comprises a pressing seat and a base, the pressing seat is located below the top frame, the top frame is provided with a mounting groove, the inside of the mounting groove is fixedly connected with a first hydraulic cylinder, the output end of the first hydraulic cylinder is fixedly connected with the upper side of the pressing seat, the lower side of the pressing seat is provided with a force plate, the upper side of the force plate is fixedly connected with a plurality of symmetrical slide rods, a plurality of circular holes are formed in the pressing seat, the plurality of slide rods are movably connected with the plurality of circular holes of the pressing seat respectively, the outside of the plurality of slide rods is movably connected with a plurality of return springs, the two ends of the return springs are fixedly connected with the lower side of the pressing seat and the upper side of the force plate respectively, a blade groove is formed in one side of the pressing seat close to the transfer roller, and a cutting blade is fixedly connected in the blade groove; the base is located below the force plate, and the two ends of the base are fixedly connected with the two sides of the front frame respectively.

6. The winding apparatus for producing plastic composite bags according to claim 3, wherein The front frame is provided with a interval stopping assembly, and the interval stopping assembly is located below the transfer roller.

7. The winding apparatus for producing plastic composite bags according to claim 6, wherein The interval stopping assembly comprises a fixing frame and a stopping plate, the two ends of the fixing frame are fixedly connected with the two side outer walls of the front frame, the stopping plate is located on one side of the fixing frame away from the retaining seat, rubber sheets are arranged on one side of the stopping plate close to the fixing frame, a push plate is arranged on the other side of the fixing frame, four limit rods are fixedly connected between the push plate and the stopping plate, four circular holes are formed in the fixing frame, the four limit rods are movably connected in the four circular holes respectively, a rectangular mounting groove is formed in one side of the fixing frame close to the push plate, a second hydraulic cylinder is fixedly connected in the rectangular mounting groove, and the output end of the second hydraulic cylinder is fixedly connected with the push plate.

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