Heating, stretching and shaping device for tarpaulin production

Abstract

The invention belongs to the technical field of tarpaulin production devices, and discloses a heating, stretching and shaping device for tarpaulin production, which comprises a device shell and a winding component, a first tarpaulin and a second tarpaulin are conveyed in the device shell, and the winding component is used for unwinding the first tarpaulin and the second tarpaulin. A cloth heat sealing assembly is movably installed at the top in the device shell, an adjusting motor drives a first adjusting roller and a second adjusting roller to rotate, and after the positions of the first adjusting roller and the second adjusting roller are changed, the first adjusting roller and the second adjusting roller still have the rolling effect on first tarpaulin and second tarpaulin; the first tarpaulin and the second tarpaulin are twisted by the first adjusting roller and the second adjusting roller after the positions are changed, so that the first tarpaulin and the second tarpaulin between the second transmission roller assembly and the first transmission roller assembly are stretched, and the hot press works to soften the tarpaulin material; and then the two pieces of tarpaulin are bonded together through the tensile force of the transportation of the second transmission roller assembly and the first transmission roller assembly.

Description

Technical Field

[0001] The invention belongs to the field of tarpaulin production devices, in particular to a heating, stretching and shaping device for tarpaulin production. Background Art

[0002] Tarpaulin, also known as canvas, waterproof cloth or covering cloth, is a kind of cloth commonly used to cover, protect and store items. Tarpaulin materials are usually PVC or other thermoplastic materials. During the production process of tarpaulin, two pieces of tarpaulin will be bonded together through the tarpaulin heat-sealing mechanism to form a tarpaulin with a wider width according to the production width requirements;

[0003] In the patent application with application publication number CN220284414U, a processing box is included, and a plurality of limiting rollers are installed on the front and rear inner walls of the processing box, and two guide holes corresponding to the positions are opened on the upper surface of the processing box, and a movable rod is slidably connected to the inner wall of the guide hole, and the bottom end of the movable rod extends to the inside of the processing box and is fixedly connected to a mounting frame, and a stretching roller is arranged on the surface of the mounting frame, and an adjusting motor is fixedly installed on the upper surface of the processing box, and a driving gear is fixedly installed on the output end of the adjusting motor, and a rack is fixedly arranged on the surface of the movable rod. The utility model can allow the tarpaulin to pass through the limiting roller and the stretching roller in sequence by arranging limiting rollers and stretching rollers inside the processing box, and then use the adjusting motor to drive the stretching roller to move upward, thereby pulling the tarpaulin upward, achieving a stretching effect on the tarpaulin, and is easy to operate and convenient for controlling and adjusting the stretching force;

[0004] In the above-mentioned patent, only the stretching effect on the tarpaulin can be achieved, which is easy to operate and convenient to control and adjust the stretching force. However, when fitting, the tarpaulin is only fitted by the stretching force, which may result in incomplete fitting.

[0005] To this end, the present invention provides a heating, stretching and shaping device for tarpaulin production. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: a heating, stretching and shaping device for tarpaulin production according to the present invention comprises a device housing and a winding component movably installed at one end of the device housing, a first tarpaulin and a second tarpaulin are transported inside the device housing, the winding component is used to unwind the first tarpaulin and the second tarpaulin, the horizontal height of the first tarpaulin is higher than the horizontal height of the second tarpaulin, and a cloth heat-sealing component for performing heat-bonding work on the first tarpaulin and the second tarpaulin is movably installed at the top of the device housing;

[0008] A first transmission roller assembly and a second transmission roller assembly are movably installed inside the device housing, the second transmission roller assembly is installed at a position close to the winding member, the first transmission roller assembly and the second transmission roller assembly are used to transmit the first tarpaulin and the second tarpaulin, and a stretching assembly is movably installed at the middle section of the device housing;

[0009] The stretching assembly includes a first adjusting roller and a second adjusting roller movably mounted inside the device housing, the first adjusting roller and the second adjusting roller are on the same numerical line, and the first adjusting roller is located above the first tarpaulin, and the second adjusting roller is located below the second tarpaulin. The stretching assembly also includes an adjusting member and a roller driving member movably mounted on the device housing, the adjusting member is used to adjust the rotation of the first adjusting roller and the second adjusting roller, and two roller driving members are provided, and the two roller driving members are used to control the rotation of the first adjusting roller and the second adjusting roller.

[0010] Preferably, a discharge port is provided on the inner wall of the device shell near the first transmission roller assembly for discharging the first tarpaulin and the second tarpaulin after production; a fixed rotating roller is movably installed inside the device shell near the stretching assembly, and the horizontal height of the fixed rotating roller is higher than the horizontal height of the first tarpaulin; a first arc-shaped sliding groove and a second arc-shaped sliding groove are provided throughout the inside of the device shell; ends of the first adjusting roller and the second adjusting roller are movably installed inside the corresponding first arc-shaped sliding groove and the second arc-shaped sliding groove; a displacement groove is also provided on the device shell near the first arc-shaped sliding groove and the second arc-shaped sliding groove, and the roller driving member is slidably installed inside the displacement groove.

[0011] Preferably, the winding component includes a first winding wheel and a second winding wheel movably mounted at one end inside the device housing, the first winding wheel and the second winding wheel are components made of the same structure, the first tarpaulin is wound around the outside of the first winding wheel, and the second tarpaulin is wound around the outside of the second winding wheel.

[0012] Preferably, a transmission shaft is fixedly mounted on both ends of the first winding wheel, a first bearing is sleeved on the outer side of the transmission shaft, and the outer side of the first bearing is fixedly connected to the inner wall of the device housing.

[0013] Preferably, the second transmission roller assembly includes a driving motor fixedly mounted on the outside of the device housing and a first pressure roller movably mounted inside the device housing, and two of the driving motor and first pressure roller are provided, and the two first pressure rollers press the first tarpaulin and the second tarpaulin.

[0014] Preferably, the cloth heat bonding assembly includes a displacement plate slidably installed inside the device shell, a heat press is fixedly installed above the displacement plate, the wind output end of the heat press is connected to a transmission pipe, an air gun is installed through the interior of the displacement plate, the upper end of the air gun is fixedly connected to one end of the transmission pipe, a wind guide nozzle is fixedly installed on the bottom of the air gun, the wind guide nozzle is a flat air outlet structure, and the wind guide nozzle is located in the gap between the first tarpaulin and the second tarpaulin.

[0015] Preferably, the first adjusting roller and the second adjusting roller are components made of the same structure, and a central shaft is fixedly installed at both ends of the first adjusting roller. A plurality of second bearings are sleeved on the outer side of the central shaft, and a limiting cylinder is fixedly sleeved on the outer sides of the plurality of second bearings. The limiting cylinder is movably installed inside the first arc-shaped sliding groove, and the limiting cylinder at the end of the second adjusting roller is movably installed inside the second arc-shaped sliding groove.

[0016] Preferably, the roller driving component includes a sliding motor slidably installed inside the corresponding displacement groove, and a driving roller is fixedly installed on the end of the sliding motor facing the inside of the device shell. The outer gear of the driving roller is meshed with a toothed belt, and the inner wall of one end of the toothed belt is meshed with the outer side of the corresponding center axis.

[0017] Preferably, the adjusting member comprises an adjusting member installed on the outside of the device housing, the end of the adjusting member facing the device housing is connected to a U-shaped bar through an axis, and the end of the U-shaped bar is movably connected to the corresponding central axis.

[0018] Preferably, the regulating motor is also connected to a self-locking shaft via a shaft, the self-locking shaft is located at the center of the U-shaped bar, and one end of the self-locking shaft is movably mounted inside the device housing.

[0019] The beneficial effects of the present invention are as follows:

[0020] (1) A U-shaped bar and a self-locking shaft are arranged on the housing of the device. The U-shaped bar and the self-locking shaft are rotated by adjusting the drive of the motor. The rotation of the U-shaped bar drives the first adjusting roller and the second adjusting roller to rotate. After the positions of the first adjusting roller and the second adjusting roller are changed, the first adjusting roller and the second adjusting roller still play a rolling role on the first tarpaulin and the second tarpaulin. After the positions are changed, the first adjusting roller and the second adjusting roller twist the first tarpaulin and the second tarpaulin, so that the first tarpaulin and the second tarpaulin are stretched between the second transmission roller assembly and the first transmission roller assembly. The hot press works, and hot air is introduced into the wind guide nozzle through the transmission pipe and the air gun. When the hot air blows to the joint of the first tarpaulin and the second tarpaulin, the high temperature softens the tarpaulin material, and then the tensile force transported by the second transmission roller assembly and the first transmission roller assembly makes the two tarpaulins bonded together to form a firm connection.

[0021] (2) The sliding motor drives the driving roller to rotate, and then the toothed belt is used to rotate the central axis and the first adjusting roller. When the first adjusting roller changes position, the sliding motor is pushed to slide by the electric telescopic rod arranged inside the displacement groove, so that the toothed belt is always kept in a straight state, maintaining the transmission relationship between the driving roller and the central axis. No matter how the first adjusting roller rotates and changes position, the sliding motor can provide the first adjusting roller with a rotational driving force. When it comes to tarpaulins made of different materials, the degree of stretching and shaping required is different. At this time, the stretching force for the tarpaulin can be determined by the change of position of the first adjusting roller and the second adjusting roller after rotation. In this process, the sliding motor always provides the first adjusting roller and the second adjusting roller with a rotational driving force. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the first tarpaulin and the second tarpaulin in the present invention; Figure 3 It is a schematic diagram of the structure of the winding component in the present invention; Figure 4 It is a schematic diagram of the structure of the adjusting component and the roller driving component in the present invention; Figure 5 It is a schematic diagram of the structure of the cloth heat-sealing assembly in the present invention; Figure 6 is a schematic diagram of a first state of the first adjusting roller and the second adjusting roller in the present invention; Figure 7 is a schematic diagram of the second state of the first adjusting roller and the second adjusting roller in the present invention; Figure 8 It is a schematic diagram of the structure of the first adjusting roller in the present invention; Fig. 9 It is a schematic diagram of the structure of the roller driving component in the present invention; Fig.10 It is a three-dimensional schematic diagram of the first arc-shaped sliding groove and the second arc-shaped sliding groove in the present invention.

[0033] In the figure: 1, device housing; 11, discharge port; 12, fixed rotating roller; 13, displacement groove; 14, first arc-shaped sliding groove; 15, second arc-shaped sliding groove; 2, first tarpaulin; 3, second tarpaulin; 4, winding member; 41, first winding wheel; 411, transmission shaft; 412, first bearing; 42, second winding wheel; 5, cloth heat sealing assembly; 51, displacement plate; 52, heat press; 53, transmission pipe; 54, air gun; 55, air guide nozzle ; 6. Stretching component; 61. Adjusting member; 611. Adjusting motor; 612. U-shaped bar; 613. Self-locking shaft; 62. Roller driving member; 621. Sliding motor; 622. Driving roller; 623. Toothed belt; 63. First adjusting roller; 631. Center shaft; 632. Limiting cylinder; 633. Second bearing; 64. Second adjusting roller; 7. First transmission roller assembly; 8. Second transmission roller assembly; 81. First pressure roller; 82. Driving motor. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0035] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. "Include" or "comprise" and other similar words used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] like Figures 1 to 10As shown, the present invention provides a heating, stretching and shaping device for tarpaulin production, comprising a device shell 1 and a winding member 4 movably installed at one end of the device shell 1, wherein a first tarpaulin 2 and a second tarpaulin 3 are transported inside the device shell 1, and the winding member 4 is used to unwind the first tarpaulin 2 and the second tarpaulin 3, and the horizontal height of the first tarpaulin 2 is higher than the horizontal height of the second tarpaulin 3, and a cloth heat-sealing component 5 is movably installed at the top of the device shell 1, and the cloth heat-sealing component 5 is used to perform thermal bonding work on the first tarpaulin 2 and the second tarpaulin 3, and a first transmission roller component 7 and a second transmission roller component 8 are also movably installed inside the device shell 1, and the second transmission roller component 8 is installed at a position close to the winding member 4, and the first transmission roller component 7 and the second transmission roller component 8 are used to The first tarpaulin 2 and the second tarpaulin 3 are transmitted, and a stretching assembly 6 is movably installed at the middle section of the inner part of the device shell 1. The stretching assembly 6 includes a first adjusting roller 63 and a second adjusting roller 64 movably installed inside the device shell 1. The first adjusting roller 63 and the second adjusting roller 64 are on the same numerical line, and the first adjusting roller 63 is above the first tarpaulin 2, and the second adjusting roller 64 is below the second tarpaulin 3. The stretching assembly 6 also includes an adjusting member 61 and a roller driving member 62 movably installed on the device shell 1. The adjusting member 61 is used to adjust the rotation of the first adjusting roller 63 and the second adjusting roller 64. Two roller driving members 62 are provided, and the two roller driving members 62 are used to control the rotation of the first adjusting roller 63 and the second adjusting roller 64.

[0037] A discharge port 11 is provided on the inner wall of the device shell 1 near the first transmission roller assembly 7 for discharging the first tarpaulin 2 and the second tarpaulin 3 after production. A fixed rotating roller 12 is movably installed inside the device shell 1 near the stretching assembly 6. The horizontal height of the fixed rotating roller 12 is higher than the horizontal height of the first tarpaulin 2. A first arc-shaped sliding groove 14 and a second arc-shaped sliding groove 15 are provided throughout the inside of the device shell 1. The ends of the first adjusting roller 63 and the second adjusting roller 64 are movably installed inside the corresponding first arc-shaped sliding groove 14 and the second arc-shaped sliding groove 15. A displacement groove 13 is also provided in the device shell 1 near the first arc-shaped sliding groove 14 and the second arc-shaped sliding groove 15, and the roller driving member 62 is slidably installed inside the displacement groove 13.

[0038] The winding component 4 includes a first winding wheel 41 and a second winding wheel 42 movably mounted at one end inside the device housing 1. The first winding wheel 41 and the second winding wheel 42 are components made of the same structure. The first tarpaulin 2 is wound on the outside of the first winding wheel 41, and the second tarpaulin 3 is wound on the outside of the second winding wheel 42. A transmission shaft 411 is fixedly mounted on both ends of the first winding wheel 41. A first bearing 412 is sleeved on the outside of the transmission shaft 411. The outside of the first bearing 412 is fixedly connected to the inner wall of the device housing 1. The second transmission roller assembly 8 includes a driving motor 82 fixedly mounted on the outside of the device housing 1 and a first pressing roller 81 movably mounted inside the device housing 1. Two driving motors 82 and two first pressing rollers 81 are provided, and the two first pressing rollers 81 press the first tarpaulin 2 and the second tarpaulin 3.

[0039] The cloth heat bonding assembly 5 includes a displacement plate 51 slidably mounted inside the device housing 1, a heat press 52 is fixedly mounted above the displacement plate 51, a transmission pipe 53 is connected to the wind output end of the heat press 52, an air gun 54 is installed through the interior of the displacement plate 51, the upper end of the air gun 54 is fixedly connected to one end of the transmission pipe 53, a wind guide nozzle 55 is fixedly mounted at the bottom of the air gun 54, the wind guide nozzle 55 is a flat air outlet structure, and the wind guide nozzle 55 is located in the gap between the first tarpaulin 2 and the second tarpaulin 3, the first adjusting roller 63 and the second adjusting roller 64 are components made of the same structure, both ends of the first adjusting roller 63 are fixedly mounted with a central shaft 631, the outer side of the central shaft 631 is sleeved with a plurality of second bearings 633, and the outer sides of the plurality of second bearings 633 are fixedly sleeved with a limiting cylinder 632, the limiting cylinder 632 is movably mounted inside the first arc-shaped sliding groove 14, and the limiting cylinder 632 at the end of the second adjusting roller 64 is movably mounted inside the second arc-shaped sliding groove 15.

[0040] The roller driving member 62 includes a sliding motor 621 slidably installed inside the corresponding displacement groove 13, and a driving roller 622 is fixedly installed at the end of the sliding motor 621 facing the inside of the device shell 1, and the outer gear of the driving roller 622 is meshed with a toothed belt 623, and the inner wall of one end of the toothed belt 623 is meshed with the outer side of the corresponding center shaft 631. The adjusting member 61 includes an adjusting member 61 installed on the outside of the device shell 1, and the end of the adjusting member 61 facing the device shell 1 is connected to a U-shaped bar 612 through an axis, and the end of the U-shaped bar 612 is movably connected to the corresponding center shaft 631. The adjusting motor 611 is also connected to a self-locking shaft 613 through an axis, and the self-locking shaft 613 is located at the center position of the U-shaped bar 612, and one end of the self-locking shaft 613 is movably installed inside the device shell 1.

[0041] Working principle: The first tarpaulin 2 and the second tarpaulin 3 are unwound by the first winding wheel 41 and the second winding wheel 42 respectively. At this time, the two first pressing rollers 81 roll the first tarpaulin 2 and the second tarpaulin 3, and the second transmission roller assembly 8 and the first transmission roller assembly 7 are components made of the same structure, so the first transmission roller assembly 7 also rolls the first tarpaulin 2 and the second tarpaulin 3, and the first adjusting roller 63 and the second adjusting roller 64 on the same vertical line also roll the first tarpaulin 2 and the second tarpaulin 3. At this time, the first tarpaulin 2 and the second tarpaulin 3 are in a horizontal and parallel state, and the horizontal height of the first tarpaulin 2 is higher than the horizontal height of the second tarpaulin 3 The fixed rotating roller 12 is located above the first tarpaulin 2, and rotates with the transportation of the first tarpaulin 2 and the second tarpaulin 3. In the conventional technology, after the first tarpaulin 2 and the second tarpaulin 3 are kept in a parallel horizontal state, the first tarpaulin 2 and the second tarpaulin 3 are thermally bonded by a heat-sealing mechanism. However, at this time, the first tarpaulin 2 and the second tarpaulin 3 are only transported by a second transmission roller assembly 8 and a similar structure to the first transmission roller assembly 7. Therefore, the first tarpaulin 2 and the second tarpaulin 3 are not in a stretched and straightened state. When thermally bonding, wrinkles and unevenness are likely to occur, thereby affecting the production quality of the tarpaulin.

[0042] When the first tarpaulin 2 and the second tarpaulin 3 need to be thermally bonded, the U-shaped bar 612 and the self-locking shaft 613 are first rotated by driving the adjusting motor 611. Since the adjusting motor 611 is fixedly connected to the side wall of the device housing 1, the two ends of the U-shaped bar 612 are respectively connected to the first adjusting roller 63 and the second adjusting roller 64. Therefore, the rotation of the U-shaped bar 612 will drive the first adjusting roller 63 and the second adjusting roller 64 to rotate, that is, the two limiting cylinders 632 rotate in the corresponding first arc-shaped sliding groove 14 and the second arc-shaped sliding groove 15. Originally, the first adjusting roller 63 and the second adjusting roller 64 are in the same position. The first tarpaulin 2 and the second tarpaulin 3 are on a vertical line, and the first tarpaulin 2 and the second tarpaulin 3 are between the first adjusting roller 63 and the second adjusting roller 64. The first tarpaulin 2 and the second tarpaulin 3 are conveyed by the rotation and rolling of the first adjusting roller 63 and the second adjusting roller 64. However, after the positions of the first adjusting roller 63 and the second adjusting roller 64 are changed, the first adjusting roller 63 and the second adjusting roller 64 still play a rolling role on the first tarpaulin 2 and the second tarpaulin 3. At this time, the first adjusting roller 63 and the second adjusting roller 64 are no longer on the same vertical line. The first adjusting roller 63 and the second adjusting roller 64 after the position change have a rolling effect on the first tarpaulin 2 and the second tarpaulin 3 The first tarpaulin 2 and the second tarpaulin 3 are twisted so that the originally parallel first tarpaulin 2 and the second tarpaulin 3 are twisted into a Z shape, thereby stretching the first tarpaulin 2 and the second tarpaulin 3 between the second transfer roller assembly 8 and the first transfer roller assembly 7. The first tarpaulin 2 and the second tarpaulin 3 between the second transfer roller assembly 8 and the first transfer roller assembly 7 are of fixed length, so after being twisted by the stretching assembly 6, the first tarpaulin 2 and the second tarpaulin 3 are in a stretched and straightened state, and the fixed rotating roller 12 is arranged on the side of the stretching assembly 6 and close to the second transfer roller assembly 8. Therefore, after the first tarpaulin 2 and the second tarpaulin 3 are twisted, the setting of the fixed rotating roller 12 is maintained. Ensure that the first tarpaulin 2 and the second tarpaulin 3 at the position of the fixed rotating roller 12 are at the same horizontal height as the first tarpaulin 2 and the second tarpaulin 3 at the position of the second transmission roller assembly 8, and the wind guide nozzle 55 is always in the overlapping gap between the first tarpaulin 2 and the second tarpaulin 3. Through the operation of the hot press 52, high-frequency hot air is introduced into the wind guide nozzle 55 through the transmission pipe 53 and the air gun 54. When the hot air blows to the joint of the first tarpaulin 2 and the second tarpaulin 3, the high temperature softens the tarpaulin material, and then the tensile force transported by the second transmission roller assembly 8 and the first transmission roller assembly 7 makes the two tarpaulins bonded together to form a firm connection.

[0043] The rotation of the first adjusting roller 63 and the second adjusting roller 64 is driven by the sliding motor 621. The driving roller 622 can be rotated by the sliding motor 621, and then the central shaft 631 and the first adjusting roller 63 are rotated by the toothed belt 623. When the first adjusting roller 63 changes its position, the sliding motor 621 can be pushed to slide by the electric telescopic rod arranged inside the displacement groove 13, so that the toothed belt 623 always keeps a straight state, and the transmission relationship between the driving roller 622 and the central shaft 631 is maintained, that is, no matter how the first adjusting roller 63 rotates and changes its position, the sliding motor 621 can provide the first adjusting roller 63 with a rotational driving force. When it comes to tarpaulins made of different materials, the degree of stretching and shaping required is different. At this time, the stretching force of the tarpaulin can be determined by the changed position of the first adjusting roller 63 and the second adjusting roller 64 after rotation, and in this process, the sliding motor 621 always provides the first adjusting roller 63 and the second adjusting roller 64 with a rotational driving force.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heating, stretching and shaping device for tarpaulin production, comprising a device housing (1) and a winding member (4) movably mounted at one end of the device housing (1), wherein a first tarpaulin (2) and a second tarpaulin (3) are transported inside the device housing (1), and the winding member (4) is used to unwind the first tarpaulin (2) and the second tarpaulin (3), wherein the horizontal height of the first tarpaulin (2) is higher than the horizontal height of the second tarpaulin (3), and characterized in that: A cloth heat-sealing assembly (5) for performing heat-bonding operation on the first tarpaulin (2) and the second tarpaulin (3) is movably installed on the top of the device housing (1); A first transmission roller assembly (7) and a second transmission roller assembly (8) are movably mounted inside the device housing (1); the second transmission roller assembly (8) is mounted at a position close to the winding member (4); the first transmission roller assembly (7) and the second transmission roller assembly (8) are used to transmit the first tarpaulin (2) and the second tarpaulin (3); and a stretching assembly (6) is movably mounted at a middle position inside the device housing (1); The stretching assembly (6) comprises a first adjusting roller (63) and a second adjusting roller (64) movably mounted inside the device housing (1); the first adjusting roller (63) and the second adjusting roller (64) are on the same numerical line, and the first adjusting roller (63) is located above the first tarpaulin (2), and the second adjusting roller (64) is located below the second tarpaulin (3); the stretching assembly (6) further comprises an adjusting member (61) and a roller driving member (62) movably mounted on the device housing (1); the adjusting member (61) is used to adjust the rotation of the first adjusting roller (63) and the second adjusting roller (64); two roller driving members (62) are provided, and the two roller driving members (62) are used to control the rotation of the first adjusting roller (63) and the second adjusting roller (64).

2. The heating, stretching and shaping device for tarpaulin production according to claim 1, characterized in that: The device housing (1) is provided with a discharge port (11) on the inner wall near the first transmission roller assembly (7) for discharging the first tarpaulin (2) and the second tarpaulin (3) after production. A fixed rotating roller (12) is movably installed inside the device housing (1) near the stretching assembly (6). The horizontal height of the fixed rotating roller (12) is higher than the horizontal height of the first tarpaulin (2). A first arc-shaped sliding groove (14) and a second arc-shaped sliding groove (15) are provided through the inside of the device housing (1). The ends of the first adjusting roller (63) and the second adjusting roller (64) are movably installed inside the corresponding first arc-shaped sliding groove (14) and the second arc-shaped sliding groove (15). A displacement groove (13) is also provided near the first arc-shaped sliding groove (14) and the second arc-shaped sliding groove (15). The roller driving member (62) is slidably installed inside the displacement groove (13).

3. The heating, stretching and shaping device for tarpaulin production according to claim 1, characterized in that: The winding component (4) comprises a first winding wheel (41) and a second winding wheel (42) movably mounted at one end inside the device housing (1); the first winding wheel (41) and the second winding wheel (42) are components made of the same structure; the first tarpaulin (2) is wound on the outside of the first winding wheel (41), and the second tarpaulin (3) is wound on the outside of the second winding wheel (42).

4. The heating, stretching and shaping device for tarpaulin production according to claim 3, characterized in that: A transmission shaft (411) is fixedly mounted at both ends of the first winding wheel (41), a first bearing (412) is sleeved on the outer side of the transmission shaft (411), and the outer side of the first bearing (412) is fixedly connected to the inner wall of the device housing (1).

5. The heating, stretching and shaping device for tarpaulin production according to claim 1, characterized in that: The second transmission roller assembly (8) comprises a driving motor (82) fixedly mounted on the outside of the device housing (1) and a first pressing roller (81) movably mounted inside the device housing (1), wherein two of the driving motor (82) and two of the first pressing roller (81) are provided, and the two first pressing rollers (81) press the first tarpaulin (2) and the second tarpaulin (3).

6. The heating, stretching and shaping device for tarpaulin production according to claim 1, characterized in that: The cloth heat-sealing assembly (5) comprises a displacement plate (51) slidably mounted inside the device housing (1); a heat press (52) is fixedly mounted above the displacement plate (51); a wind output end of the heat press (52) is connected to a transmission pipe (53); an air gun (54) is installed through the interior of the displacement plate (51); the upper end of the air gun (54) is fixedly connected to one end of the transmission pipe (53); a wind guide nozzle (55) is fixedly mounted at the bottom of the air gun (54); the wind guide nozzle (55) is a flat air outlet structure; and the wind guide nozzle (55) is located in the gap between the first tarpaulin (2) and the second tarpaulin (3).

7. The heating, stretching and shaping device for tarpaulin production according to claim 2, characterized in that: The first adjusting roller (63) and the second adjusting roller (64) are components made of the same structure. A central shaft (631) is fixedly installed at both ends of the first adjusting roller (63). A plurality of second bearings (633) are sleeved on the outer side of the central shaft (631). A limiting cylinder (632) is fixedly sleeved on the outer side of the plurality of second bearings (633). The limiting cylinder (632) is movably installed inside the first arc-shaped sliding groove (14). The limiting cylinder (632) at the end of the second adjusting roller (64) is movably installed inside the second arc-shaped sliding groove (15).

8. The heating, stretching and shaping device for tarpaulin production according to claim 7, characterized in that: The roller driving member (62) comprises a sliding motor (621) slidably mounted inside a corresponding displacement groove (13); a driving roller (622) is fixedly mounted on the end of the sliding motor (621) facing the inside of the device housing (1); an outer gear of the driving roller (622) is meshed with a toothed belt (623); an inner wall of one end of the toothed belt (623) is meshed with the outer side of a corresponding central shaft (631).

9. The heating, stretching and shaping device for tarpaulin production according to claim 7, characterized in that: The adjusting member (61) comprises an adjusting member (61) installed on the outside of the device housing (1); the end of the adjusting member (61) facing the device housing (1) is connected to a U-shaped bar (612) via an axis; the end of the U-shaped bar (612) is movably connected to the corresponding central axis (631).

10. A heating, stretching and shaping device for tarpaulin production according to claim 9, characterized in that: The regulating motor (611) is also connected to a self-locking shaft (613) via a shaft. The self-locking shaft (613) is located at the center of the U-shaped bar (612). One end of the self-locking shaft (613) is movably mounted inside the device housing (1).

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