Mini solvent-free compound machine

Abstract

The invention discloses a mini-type solvent-free compound machine which comprises a rack, a first unwinding unit, a second unwinding unit, a coating unit, a compound unit and a winding unit, and is characterized in that the compound unit is arranged at the rear upper part of the coating unit in the middle of the rack and is close to the coating unit, so that the distance from coating to compounding of a strip material discharged by the first unwinding unit is short, and the distance from coating to compounding of the strip material is short; and the compounding unit comprises a compounding rubber roller arranged above the rear part of the coating rubber roller and a compounding steel roller arranged above the compounding rubber roller, and the transverse distance L between the center connecting line of the coating steel roller and the center connecting line of the compounding steel roller is set to be 120-150mm. All the mechanisms are arranged on a pair of wallboards, the structure is compact, layout is reasonable, the occupied area is small, cost is low, operation is convenient, and waste of strip materials is small; the compounding mechanism is arranged in the middle of the wall plate, so that the coating unit and the compounding unit are very close to each other, the coating unit and the compounding unit can be immediately compounded after coating, the material belt tension balance is good, the compounding effect is good, and the compounding quality is stable.

Description

Technical Field

[0001] The invention relates to the technical field of solvent-free laminating machines, and in particular to a mini solvent-free laminating machine. Background Art

[0002] The frames of the current two-in-one solvent-free laminating machines are composed of two pairs of separated wall panels. The layout of each component is relatively scattered, occupying a large area of ​​space, which increases the floor space requirements of the factory. When working, the operator needs to run back and forth between the two pairs of wall panels, which has low production efficiency and high labor intensity. When a new roll of material is unwound, the front strip needs to be laid from the unwinding device to the rewinding device (this part of the strip is not coated with glue and will become waste) before the coating and laminating operations can really begin. The existing two-in-one solvent-free laminating machine has a long material path from the unwinding device to the rewinding device, and more material needs to be wasted in the front, which increases the production cost.

[0003] For example, in the Chinese invention patent application with publication number CN101259772A, a "solvent-free laminating machine" is disclosed, which includes a frame, a coating mechanism, a laminating mechanism, a winding mechanism, a first unwinding mechanism, a second unwinding mechanism, a power mechanism, a wall panel, a machine top, an exhaust gas recovery unit, a cooling roll, a transition roll group, a swing tension roll group, and a control box; the gap and pressure between the rolls of its coating mechanism can be adjusted independently; its laminating mechanism adopts a new structure in which the centers of the rolls are on the same horizontal line; its winding mechanism realizes that the winding pressure remains constant when winding at any diameter; the observation window adopts a new mechanism of pneumatically controlled observation window; its control box adopts a new control panel mechanism with adjustable lighting direction and reasonable and user-friendly operation panel structure; the production efficiency, quality, and safety are guaranteed, and it is more convenient to operate than previous equipment, with a reasonable structure and beautiful appearance.

[0004] For example, in the Chinese utility model patent application with publication number CN208118630U, a "solvent-free composite machine" is disclosed, which includes a frame, on which a first unwinding mechanism, a composite steel roller, a back pressure roller, a second unwinding mechanism, a winding mechanism and a coating mechanism are arranged; the frame also includes a machine top, one end of the machine top is provided with a first wall panel, the other end of the machine top is provided with a second wall panel, the first unwinding mechanism and the coating mechanism are arranged on the first wall panel, the second unwinding mechanism, the winding mechanism, the composite steel roller and the back pressure roller are arranged on the second wall panel, and a dust cover is provided on the side of the first wall panel close to the coating mechanism, the upper and lower ends of the dust cover are plugged into the frame, and the left and right ends are connected to the frame by buckles. The dust cover of the utility model can prevent the dust in the air from adhering to the surface of the substrate, resulting in the problem of dust existing between the interlayers of the substrate, thereby improving the quality of the composite.

[0005] The solvent-free laminating machines in the above two patents are both two-in-one solvent-free laminating machines, and their frames are provided with two pairs of separated wall panels, and the layout of each mechanism is dispersed, occupying a large area and high cost; the first unwinding material cannot enter the laminating mechanism immediately after coating, and needs to cross from one pair of wall panels to the second unwinding material on another pair of wall panels for lamination. The distance is far, the laminating effect is affected, the tension balance stability of the material strip is poor, and the stability of the laminating quality is affected.

[0006] In addition, the existing two-in-one solvent-free laminating machine is not equipped with a correction sensor and lacks accurate and efficient correction devices, which affects the overall quality of the composite materials of the two-in-one solvent-free laminating machine. After the composite materials deviate, the machine needs to be stopped for correction, which affects production efficiency. Summary of the invention

[0007] In order to solve the problems of the above-mentioned existing two-in-one solvent-free laminating machine having a large frame, a large footprint, high production cost, a scattered component layout, a large waste of material, a long distance between the coating mechanism and the laminating mechanism, unbalanced material tension and poor stability, lack of accurate and efficient correction device, unstable composite quality and low production efficiency, the present invention provides a mini solvent-free laminating machine, all mechanisms of which are arranged on a pair of wall panels, with a compact structure, a reasonable layout, a small footprint, low cost, easy operation, and little waste of material, and is equipped with a correction sensor and a correction device, which can automatically correct the deviation accurately and efficiently, and is equipped with a swing tensioning device automatically controlled by a swing cylinder, with stable composite quality and high production efficiency.

[0008] To achieve the above-mentioned purpose, the present invention provides a mini solvent-free laminating machine, including a frame, a first unwinding unit, a second unwinding unit, a coating unit, a laminating unit and a winding unit, wherein the frame includes two wall panels arranged side by side on the left and right sides and four support pipes arranged at the upper and lower ends between the two wall panels, the first unwinding unit is arranged on the front lower side of the wall panel, the coating unit is arranged above the first unwinding unit on the front side of the wall panel, the second unwinding unit and the winding unit are respectively arranged on the rear upper side and the rear lower side of the wall panel, and the coating unit includes a plurality of support pipes extending from the front lower side to the bottom of the wall panel. The metering roller, transfer steel roller, transfer rubber roller, coating steel roller and coating rubber roller are arranged in sequence on the upper rear side, and the characteristic is that the compounding unit is arranged at the upper rear of the coating unit in the middle of the frame, close to the coating unit, so that the distance between coating and compounding of the strip discharged from the first unwinding unit is short, the compounding effect is better, and the tension is more balanced. The compounding unit includes a composite rubber roller arranged at the upper rear of the coating rubber roller and a composite steel roller arranged above the composite rubber roller. The lateral distance between the center line of the coating steel roller and the composite steel roller is set to 120-150mm.

[0009] As a further improvement of the present technology, correction sensors are provided on the rear side of the first unwinding unit and the front side of the second unwinding unit. The correction sensors are connected to the power control system to detect whether the strips unwound by the first unwinding unit and the second unwinding unit are centered.

[0010] As a further improvement of the present technology, the first unwinding unit includes a first triangular plate, a first optical axis, and a first support rod assembly; The first triangular plate is provided with two pieces, which are respectively arranged on the left and right sides of the first unwinding unit, and the plane of the first triangular plate is arranged horizontally; The first support rod assembly is provided with two pieces, which are respectively provided at two corners of the rear side of the first triangular plate. The first support rod assembly comprises a first steel pipe and first flanges fixedly connected to both ends of the first steel pipe. The first flanges at both ends are respectively fixedly connected to the first triangular plates on the corresponding sides. The first optical axis is provided with two parts, which are respectively sleeved in the two first support rod assemblies. The first optical axis passes through the first triangular plate on the left side, the first support rod assembly and the first triangular plate on the right side from left to right in sequence. The two ends of the first optical axis are respectively fixedly connected to the corresponding side wall panels of the frame. The first triangular plate, the first support rod assembly and the first optical axis form a linearly movable connection. First linear bearings are provided between the inner wall of the mounting hole through which the first optical axis passes and the outer cylindrical surface of the first optical axis at both ends of the two first triangular plates and the first support rod assembly.

[0011] As a further improvement of the present technology, the first unwinding unit is further provided with a first deviation correcting device, the first deviation correcting device comprising a first deviation correcting roller, a connecting bracket and a deviation correcting cylinder; The first deviation-correcting roller is arranged on the rear end of the plane of the first triangular plate through a bearing seat; The connecting bracket is fixedly connected to the rear side surface of the first triangular plate on one side; The deflection correction cylinder is fixedly connected to the connecting bracket, and the piston rod of the deflection correction cylinder is fixedly connected to the frame wall plate; The deflection correction cylinder is connected to the power control system. When the deflection correction cylinder is started, the first unwinding unit can be driven to move linearly left and right as a whole, thereby driving the first deflection correction roller to move linearly left and right to adjust the centering of the strip released by the first unwinding unit.

[0012] As a further improvement of the present technology, the second unwinding unit includes a second triangular plate, a second optical axis, and a second support rod assembly; The second triangular plate is provided with two pieces, which are respectively arranged on the left and right sides of the second unwinding unit. The second triangular plate is an isosceles triangle, and the upper and lower side surfaces are arranged symmetrically from top to bottom. The second brace assembly is provided with two pieces, which are respectively provided at the two corners of the front side of the second triangular plate. The second brace assembly includes a second steel pipe and second flanges fixedly connected to the two ends of the second steel pipe. The second flanges at the two ends are respectively fixedly connected to the second triangular plates on the corresponding sides. The second optical axis is provided with two parts, which are respectively sleeved in the two second support rod assemblies. The second optical axis passes through the left second triangular plate, the second support rod assembly and the right second triangular plate from left to right in sequence. The two ends of the second optical axis are respectively fixedly connected to the corresponding side wall panels of the frame. The second triangular plate and the second support rod assembly are both connected to the second optical axis in a linearly movable manner. Second linear bearings are provided between the inner wall of the mounting hole for the second optical axis to pass through and the outer cylindrical surface of the second optical axis at both ends of the two second triangular plates and the second support rod assembly.

[0013] As a further improvement of the present technology, the second unwinding unit is further provided with a second deviation correcting device, which includes a second deviation correcting roller, a third optical axis, a connecting assembly, a fourth optical axis, a ball screw linear moving mechanism and a driving motor; A third optical axis and a fourth optical axis are sequentially arranged on the upper middle part of the second triangular plate from bottom to top, and linear bearing seats are respectively arranged at both ends of the third optical axis and the fourth optical axis. Small wall panels extending backward are arranged at the upper ends of the rear sides of the left and right wall panels of the frame, and the linear bearing seats are fixedly connected to the corresponding small wall panels. A linear bearing is arranged in the linear bearing seat, and the third optical axis and the fourth optical axis are connected to the linear bearings in a linearly movable manner left and right; The connecting assembly is provided with two parts, which are respectively arranged on the inner side surfaces of the second triangular plates on the left and right sides, and the connecting assembly includes a linkage plate and a double clamping plate. The lower end of the linkage plate is fixedly connected to the middle part of the inner side surface of the second triangular plate on the corresponding side, and the upper end is sleeved on the third optical axis and fixedly connected to the third optical axis. The double clamping plate includes two clamping plates which are symmetrically arranged front and back. The upper end of the double clamping plate is sleeved on the fourth optical axis, and the lower end is sleeved on the third optical axis. The middle is locked by two locking bolts to fix the double clamping plate to the third optical axis and the fourth optical axis. The second deviation-correcting roller is sleeved in the middle of the fourth optical axis and is rotatably connected to the fourth optical axis; The ball screw linear movement mechanism comprises a ball screw and a screw nut, wherein the screw nut is inserted into a second triangular plate on one side, the ball screw is threadedly connected to the screw nut, a bearing sleeve is inserted into a position corresponding to the ball screw on a corresponding side wall plate of the frame, the end of the ball screw is fastened to the inner ring of the rolling bearing in the bearing sleeve, and the ball screw extending out of the bearing sleeve is connected to a driving motor; The drive motor is connected to the power control system. When the drive motor is started, it drives the ball screw to rotate, and the ball screw drives the screw nut to move linearly. The screw nut drives the second unwinding unit to move linearly left and right as a whole. The second triangular plate of the second unwinding unit moves linearly left and right together with the connecting component, the third optical axis, the fourth optical axis and the second deviation correction roller to adjust the centering of the strip released by the second unwinding unit.

[0014] As a further improvement of the present technology, it also includes a swing tensioning device, which includes a rotating shaft, a tension roller, a swing plate, an expansion coupling sleeve, a limit rod, a swing cylinder and a first swing arm; The rotating shaft is arranged horizontally, and both ends thereof are rotatably connected to the left and right wall panels or small wall panels of the frame through bearing seats; The tension roller is parallel to the rotating shaft and is arranged below the rotating shaft, and a roller shaft is arranged inside the tension roller; The swing plate is respectively provided with a first through hole, a second through hole and a waist-shaped hole whose center is arranged on a vertical line from top to bottom, and a tightening sleeve is fixedly connected to the corresponding position of the first through hole on the swing plate, and the swing plate and the tightening sleeve are provided with two groups, which are respectively symmetrically sleeved on the inner sides of the bearing seats at both ends of the rotating shaft, and the tightening sleeve is tightened and fixedly connected with the rotating shaft; The left and right wall panels or small wall panels of the frame are provided with limit rods at positions corresponding to the second through holes, and the limit rods pass through the second through holes, and the aperture of the second through holes is 30±2 mm larger than the outer diameter of the position corresponding to the limit rods; The two ends of the roller shaft pass through the waist-shaped holes on the swing plates on both sides respectively, and the front and rear sides of the swing plates are provided with set screws at positions corresponding to the waist-shaped holes, which are used to lock and fix the two ends of the roller shaft; One end of the first swing arm is sleeved on the outer circumferential surface of the left end of the rotating shaft, disposed between the left end bearing seat and the swing plate, and fixedly connected to the rotating shaft, and the other end of the first swing arm extends backward, and a pin is inserted into the right side surface of the rearward extension; The swing cylinder is arranged just above or just below the pin shaft, the swing cylinder is fixedly connected to the frame wall plate or small wall plate through the cylinder seat shaft, and the swing cylinder piston rod is connected to the pin shaft through the joint bearing; When the tension of the material strip exceeds the normal production setting range, the swing cylinder will drive the tension roller to swing a certain angle, so that the tension of the material strip can be quickly restored to the normal setting range, so that the tension of the material strip production process can be kept balanced and stable, thereby improving the yield rate of the composite product; The swing tensioning device is provided with three parts, which are respectively arranged at the rear side of the first deviation correcting roller, the front side of the composite steel roller, and above the second deviation correcting device. The swing tensioning device above the second deviation correcting device is arranged on the small wall plate of the frame.

[0015] As a further improvement of the present technology, the coated steel roller is configured as a circulating heating roller, including an outer roller, an outer spoke plate, an inner roller, a core shaft, an inner spoke plate, a connecting block, a spiral guide plate and a one-way flow type rotary joint. The outer spoke plates are arranged at both ends of the outer roller and are sealed and fixedly connected to the outer roller. The inner roller is coaxially sleeved inside the outer roller. The core shaft has two pieces, which are respectively arranged at both ends of the outer roller, and pass through the corresponding end outer spoke plates and are inserted into the inner roller. The inner spoke plate has a plurality of pieces, which are respectively evenly distributed at both ends and the inside of the inner roller and are sealed and fixedly connected to the inner roller. The shaft is provided with a hollow structure from the outer end to the corresponding end face of the inner roller, and a plurality of through holes evenly distributed in a circumference are provided on the outer wall of the core shaft between the corresponding end outer spoke plate and the corresponding end face of the inner roller. The one-way flow type rotary joint is provided with two pieces, which are respectively sealed and connected to the outer ends of the two core shafts and communicated with the corresponding core shafts, and are used for externally connecting a hot water pipe, and inputting hot water or hot oil between the outer wall of the inner roller and the inner wall of the outer roller to form a circulating heating water jacket. A plurality of connection blocks evenly distributed in a circumference are provided between the inner wall of the outer roller and the outer wall of the inner roller and at the corresponding position of each inner spoke plate. A spiral guide plate is also provided between the inner wall of the outer roller and the outer wall of the inner roller. When the spiral guide plate rotates with the outer roller, the hot water in the circulating heating water jacket is accelerated to flow along the spiral flow channel, thereby ensuring that the temperature of the outer surface of the outer roller is balanced and stable. The composite steel roller is configured as a circulating heating roller, and its structure is consistent with that of the coating steel roller.

[0016] As a further improvement of the present technology, both ends of the coating rubber roller are installed on the second swing arm, one end of the second swing arm far from the coating rubber roller is hinged to the corresponding wall panel, and one end of the second swing arm near the coating rubber roller is connected to the piston rod of the coating cylinder installed on the wall panel through a joint bearing, and the coating cylinder is connected to the power supply control system, and the coating cylinder is started to drive the second swing arm to rotate around the hinge point to adjust the gap and pressure between the coating rubber roller and the coating steel roller; Both ends of the composite rubber roller are installed on the third swing arm, one end of the third swing arm close to the composite rubber roller is hinged to the corresponding wall panel, and one end far from the composite rubber roller is connected to the piston rod of the composite cylinder installed on the wall panel through a joint bearing, and the hinge point and the piston rod connection point on the third swing arm are both arranged on the same side of the composite rubber roller. The composite cylinder is connected to the power control system, and the composite cylinder is started to drive the third swing arm to rotate around the hinge point to adjust the gap and pressure between the composite rubber roller and the composite steel roller.

[0017] As a further improvement of the present technology, a manual adjustment device is also included, which includes an adjustment roller, a bearing seat, a bearing sleeve, an adjustment plate, a manual adjustment screw and a clamping plate. The two ends of the roller shaft of the adjustment roller are respectively sleeved in the bearing seat and the bearing sleeve. A deep groove ball bearing is provided in the bearing seat, and a self-aligning ball bearing is provided in the bearing sleeve. The bearing seat is fixedly connected to the corresponding wall panel, and a square boss is provided on the side of the bearing sleeve close to the corresponding wall panel. An adjustment plate is fixedly connected to the corresponding position of the corresponding wall panel and the bearing sleeve. A longitudinal rectangular through groove is provided on the adjustment plate. The square boss clamps It is arranged in a rectangular through groove, a threaded hole is arranged on the front side or rear side of the square boss, a coaxial screw hole is arranged on the side wall corresponding to the threaded hole on the rectangular through groove, the external threaded end of the manual adjusting screw passes through the screw hole and is threadedly connected with the threaded hole of the square boss, one end of the clamping plate is fixedly connected to the wall panel, and the other end is sleeved with the other end of the manual adjusting screw, the manual adjusting screw and the clamping plate form a rotatable connection, and rotating the manual adjusting screw can drive the corresponding end of the adjusting roller to move straightly forward and backward along the rectangular through groove, so that the deviated belt material on the adjusting roller can be corrected.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. All the mechanisms of the present invention are arranged on a pair of wall panels, with compact structure, reasonable layout, small footprint, low cost, short path from unwinding unit to winding unit, less material wasted in front of new material roll, reducing the production cost of customers, operators do not need to run back and forth between two pairs of wall panels, reducing the labor intensity of operators, good composite quality, high composite efficiency, worthy of popularization and application; 2. The present invention arranges the compounding mechanism in the middle of the wallboard, so that the coating position and the compounding position are very close, and the compounding can be started immediately after coating, the tension balance of the material strip is good, the compounding effect is good, and the compounding quality is stable; 3. The present invention connects the correction sensor with the power control system. When the power control system receives the information of the strip deviation center sent by the correction sensor, the first correction device or the second correction device is started to correct the deviation automatically at the first time. The correction is more accurate and efficient, ensuring the strip centering and improving the quality of the composite product. 4. The present invention provides a swing tensioning device. When the tension of the material strip exceeds the normal production setting range, the swing cylinder will drive the tension roller to swing a certain angle, so that the tension of the material strip can be quickly restored to the normal setting range, so that the tension of the material strip production process can be kept balanced and stable, thereby improving the yield rate of the composite product; 5. The present invention provides a manual adjustment device. When the quality of the material strip used for compounding is not good, although the unwinding and unloading is corrected and aligned, it may still deviate in the middle. At this time, the manual adjustment device can be used to adjust the material strip before entering the coating unit and the compounding unit to correct the position of the material strip, thereby ensuring the compounding quality and avoiding the cost waste of compounding scrap. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a right sectional structural schematic diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall material feeding path structure of an embodiment of the present invention; Figure 3 This is a schematic diagram of the perspective structure of the first deviation-correcting device according to an embodiment of the present invention from the back to the front; Figure 4 This is a schematic diagram of the structure of the second deviation-correcting device according to an embodiment of the present invention, viewed from the back to the front; Figure 5 This is a schematic structural diagram of a swing tensioning device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the internal structure of a coating steel roller according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the external structure of the inner roller of the coating steel roller according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of a manual adjustment roller according to an embodiment of the present invention; Fig. 9 It is a schematic diagram of the overall external structure of an embodiment of the present invention.

[0020] In the figure: 1, frame, 101, wall panel, 102, support tube, 103, small wall panel, 2, first unwinding unit, 201, first triangle plate, 202, first support rod assembly, 203, first optical axis, 3, first deviation correction device, 301, first deviation correction roller, 302, deviation correction cylinder, 303, connecting bracket, 4, coating unit, 401, metering roller, 402, transfer steel roller, 403, transfer rubber roller, 404, coating steel roller, 4041, outer roller, 4042, outer spoke plate, 4043, inner roller, 4044, inner spoke plate, 4045, mandrel, 4046, connecting block, 4047, spiral guide plate, 4048, through hole, 4049, one-way flow type rotary joint, 405, coating rubber roller, 406, coating cylinder, 407, second swing arm, 5, Composite unit, 501, composite rubber roller, 502, composite steel roller, 503, composite cylinder, 504, third swing arm, 6, second unwinding unit, 601, second triangle plate, 602, second support rod assembly, 603, second optical axis, 7, winding and pressing device, 8, winding unit, 9, swing tensioning device, 901, rotating shaft, 902, tension roller, 903, roller shaft, 904, swing plate, 9041, first through hole, 9042, second through hole, 9043, waist-shaped hole, 905, expansion coupling sleeve, 906, limit rod, 907, first swing arm, 908, bearing seat, 909, pin shaft, 910, swing cylinder, 911, cylinder seat shaft, 912, spherical bearing, 10, deviation sensor, 11, second deviation correction device, 1101, second deviation correction roller, 1102. The third optical axis; 1103. The fourth optical axis; 1104. The linear bearing seat; 1105. The double splint; 1106. The linkage plate; 1107. The ball screw linear moving mechanism; 11071. The ball screw; 11072. The screw nut; 12. The manual adjustment device; 1201. The adjustment roller; 1202. The bearing seat; 1203. The bearing sleeve; 12031. The square boss; 1204. The adjustment plate; 12041. The rectangular hole; 1205. The manual adjustment screw; 1206. The splint; 13. The left protective cover; 14. The right protective cover; 15. The safety sliding door; 16. The power control system. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1 , Figure 2As shown, the embodiment of the present invention includes a frame 1, a first unwinding unit 2, a second unwinding unit 6, a coating unit 4, a compounding unit 5 and a winding unit 8. The frame 1 includes two wall panels 101 arranged in parallel on the left and right sides and four support pipes 102 arranged at the upper and lower ends between the two wall panels 101. The wall panel width L1 is set to 1000mm. The first unwinding unit 2 is arranged at the front lower side of the frame 1, the coating unit 4 is arranged above the first unwinding unit 2 on the front side of the frame 1, the second unwinding unit 6 and the winding unit 8 are respectively arranged at the rear upper side and the rear lower side of the frame 1, and the coating unit 4 includes from the front lower side to the rear upper side in order A metering roller 401, a transfer steel roller 402, a transfer rubber roller 403, a coating steel roller 404 and a coating rubber roller 405 are provided. The compounding unit 5 is provided at the upper rear of the coating unit 4 in the middle of the frame 1, close to the coating unit 4, so that the distance between coating and compounding of the strip discharged from the first unwinding unit 2 is short, the compounding effect is better, and the tension is more balanced. The compounding unit 5 includes a composite rubber roller 501 provided at the upper rear of the coating rubber roller 405 and a composite steel roller 502 provided above the composite rubber roller 501. The lateral distance L3 of the center line connecting the coating steel roller 404 and the composite steel roller 502 is set to 127 mm.

[0023] like Figure 1 As shown, a correction sensor 10 is provided on the rear side of the first unwinding unit 2 and the front side of the second unwinding unit 6. The correction sensor 10 is connected to the power control system and is used to detect whether the strips unwound by the first unwinding unit 2 and the second unwinding unit 6 are centered.

[0024] like Figure 3 As shown, as a preference, the first unwinding unit 2 includes a first triangular plate 201, a first optical axis 203, and a first support rod assembly 202; The first triangular plate 201 is provided with two pieces, which are respectively arranged on the left and right sides of the first unwinding unit 2, and the upper plane of the first triangular plate 201 is arranged horizontally; The first support rod assembly 202 has two parts, which are respectively arranged at two corners of the rear side of the first triangular plate 201. The first support rod assembly 202 includes a first steel pipe and first flanges fixedly connected to both ends of the first steel pipe. The first flanges at both ends are respectively fixedly connected to the first triangular plate 201 on the corresponding side. The first optical axis 203 is provided with two parts, which are respectively sleeved in the two first support rod assemblies 202. The first optical axis 203 passes through the left first triangular plate 201, the first support rod assembly 202 and the right first triangular plate 201 from left to right in sequence. The two ends of the first optical axis 203 are respectively fixedly connected to the corresponding side wall plates 101 of the frame 1. The first triangular plate 201, the first support rod assembly 202 and the first optical axis 203 form a linearly movable connection. A first linear bearing (not shown in the figure) is provided between the inner wall of the mounting hole through which the first optical axis 203 passes and the outer cylindrical surface of the first optical axis 203 at both ends of the two first triangular plates 201 and the first support rod assembly 202.

[0025] like Figure 3 As shown, preferably, the first unwinding unit 2 is further provided with a first deviation correcting device 3, and the first deviation correcting device 3 includes a first deviation correcting roller 301, a connecting bracket 303 and a deviation correcting cylinder 302; The first deviation-correcting roller 301 is disposed on the rear end of the upper plane of the first triangular plate 201 through a bearing seat; The connecting bracket 303 is fixedly connected to the rear side surface of the first triangular plate 201 on one side; The deviation-correcting cylinder 302 is fixedly connected to the connecting bracket 303, and the piston rod of the deviation-correcting cylinder 302 is fixedly connected to the corresponding side wall plate 101 of the frame; The correcting cylinder 302 is connected to the power control system 16. Starting the correcting cylinder 302 can drive the first unwinding unit 2 to move linearly left and right as a whole, thereby driving the first correcting roller 301 to move linearly left and right to adjust the centering of the strip released by the first unwinding unit 2.

[0026] like Figure 4 As shown, as a preference, the second unwinding unit 6 includes a second triangular plate 601, a second optical axis 603, and a second support rod assembly 602; The second triangular plate 601 is provided with two pieces, which are respectively provided on the left and right sides of the second unwinding unit 6. The second triangular plate 601 is an isosceles triangle, and the upper and lower sides are symmetrically arranged. The second support rod assembly 602 has two parts, which are respectively arranged at the two corners of the front side of the second triangular plate 601. The second support rod assembly 602 includes a second steel pipe and second flanges fixedly connected to both ends of the second steel pipe. The second flanges at both ends are respectively fixedly connected to the second triangular plate 601 on the corresponding side. The second optical axis 603 is provided with two parts, which are respectively sleeved in the two second support rod assemblies 602. The second optical axis 603 passes through the left second triangular plate 601, the second support rod assembly 602 and the right second triangular plate 601 from left to right in sequence. The two ends of the second optical axis 603 are respectively fixedly connected to the corresponding side wall plates 101 of the frame. The second triangular plate 601, the second support rod assembly 602 and the second optical axis 603 form a linearly movable connection. A second linear bearing (not shown in the figure) is provided between the inner wall of the mounting hole through which the second optical axis 603 passes and the outer cylindrical surface of the second optical axis 603 at both ends of the two second triangular plates 601 and the second support rod assembly 602.

[0027] like Figure 4 As shown, preferably, the second unwinding unit 6 is further provided with a second deviation correcting device 11, and the second deviation correcting device 11 includes a second deviation correcting roller 1101, a third optical axis 1102, a connecting assembly, a fourth optical axis 1103, a ball screw linear moving mechanism 1106 and a driving motor (not shown in the figure); A third optical axis 1102 and a fourth optical axis 1103 are arranged in sequence from bottom to top at the upper middle part of the second triangular plate 601. Linear bearing seats 1104 are arranged at both ends of the third optical axis 1102 and the fourth optical axis 1103. Small wall panels 103 extending forward are arranged at the upper rear ends of the left and right wall panels 101 of the frame 1. The width L2 of the small wall panels is set to 230 mm. The linear bearing seats 1104 are fixedly connected to the corresponding small wall panels 103. Linear bearings are arranged in the linear bearing seats 1104. The third optical axis 1102 and the fourth optical axis 1103 are connected to the linear bearings so as to be movable left and right in a straight line. The connecting assembly is provided with two parts, which are respectively arranged on the inner side surfaces of the second triangular plates 601 on the left and right sides. The connecting assembly includes a linkage plate 1105 and a double clamping plate 1106. The lower end of the linkage plate 1105 is fixedly connected to the middle part of the inner side surface of the second triangular plate 601 on the corresponding side, and the upper end is sleeved on the third optical axis 1102 and fixedly connected to the third optical axis 1102. The double clamping plate 1106 includes two clamping plates that are symmetrically arranged front and back. The upper end of the double clamping plate 1106 is sleeved on the fourth optical axis 1103, and the lower end is sleeved on the third optical axis 1102. The middle is locked by two locking bolts to fix the double clamping plate 1106 with the third optical axis 1102 and the fourth optical axis 1103. The second deviation-correcting roller 1101 is sleeved in the middle of the fourth optical axis 1103 and is rotatably connected to the fourth optical axis 1103; The ball screw linear moving mechanism 1107 includes a ball screw 11071 and a screw nut 11072. The screw nut 11072 is inserted on the second triangular plate 601 on one side. The ball screw 11071 is threadedly connected in the screw nut 11072. A bearing sleeve 1108 is inserted in a position corresponding to the ball screw 11071 on the corresponding side wall plate 101 of the frame 1. The mounting end of the ball screw 11071 is fastened to the inner ring of the rolling bearing in the bearing sleeve 1108. The outer end of the ball screw 11071 extending out of the bearing sleeve 1108 is connected to a driving motor (not shown in the figure). The driving motor is connected to the power control system 16. The driving motor is started to drive the ball screw 11071 to rotate, and the ball screw 11071 drives the screw nut 11072 to move linearly. The screw nut 11072 drives the second unwinding unit 6 to move linearly left and right as a whole. The second triangular plate 601 of the second unwinding unit 6 moves linearly left and right with the connecting assembly, the third optical axis 1102, the fourth optical axis 1103 and the second deviation correction roller 1101 to adjust the centering of the strip released by the second unwinding unit 6.

[0028] like Figure 5 As shown, as a preference, it further includes a swing tensioning device 9, which includes a rotating shaft 901, a tension roller 902, a swing plate 904, an expansion coupling sleeve 905, a limit rod 906, a swing cylinder 910 and a first swing arm 907; The rotating shaft 901 is arranged horizontally, and bearing seats 908 are sleeved at both ends. The bearing seats 908 are inserted into the left and right wall panels 101 or small wall panels 103 of the frame 1, so that both ends of the rotating shaft 901 are rotatably connected with the left and right wall panels 101 or small wall panels 103 of the frame 1; The tension roller 902 is parallel to the rotating shaft 901 and is arranged below the rotating shaft 901. A roller shaft 903 is arranged inside the tension roller 902. The swing plate 904 is provided with a first through hole 9041, a second through hole 9042 and a waist-shaped hole 9043 from top to bottom, the center of which is arranged on a vertical line. A tightening sleeve 905 is fixedly connected to the corresponding position of the first through hole 9041 on the swing plate 904. The swing plate 904 and the tightening sleeve 905 are provided with two groups, which are respectively symmetrically sleeved on the inner sides of the bearing seats 908 at both ends of the rotating shaft 901. The tightening sleeve 905 is tightened and fixedly connected to the rotating shaft 901. Limit rods 906 are provided at positions corresponding to the second through holes 9042 on the left and right side wall panels 101 or the small wall panels 103 of the frame 1. The limit rods 906 pass through the second through holes 9042. The aperture of the second through holes 9042 is 30±2 mm larger than the outer diameter of the corresponding position of the limit rods 906. The limit rods 906 are used to limit the swinging arc of the swinging plate to prevent the swinging plate from accidentally swinging excessively, resulting in product scrapping.

[0029] The two ends of the roller shaft 903 pass through the waist-shaped holes 9043 of the swing plates 904 on both sides respectively. Set screws (not shown in the figure) are provided on the front and rear sides of the swing plates at positions corresponding to the waist-shaped holes. The ends of the set screws are held on the outer sides of the roller shaft 903 to lock and fix the two ends of the roller shaft 903. The front and rear positions of the roller shaft 903 can be adjusted before the set screws are tightened.

[0030] One end of the first swing arm 907 is sleeved on the outer surface of the left end of the rotating shaft 901, disposed between the left end bearing seat 908 and the swing plate 904, and fixedly connected to the rotating shaft 901. The other end of the first swing arm 907 extends backward, and a pin shaft 909 is inserted on the right side surface of the rearward extension portion; The swing cylinder 910 is arranged just above or just below the pin shaft 909. The cylinder body of the swing cylinder 910 is fixedly connected to the frame wallboard 101 or the small wallboard 103 through the cylinder seat shaft 911. The piston rod of the swing cylinder 910 is connected to the pin shaft 909 through the joint bearing 912. When the material strip tension exceeds the normal production setting range, the swing cylinder 910 will drive the tension roller 902 to swing a certain angle, so that the material strip tension quickly returns to the normal setting range, so that the material strip production process maintains tension balance and stability, thereby improving the yield rate of the composite product.

[0031] The swing tensioning device 9 is provided with three parts, which are respectively arranged at the rear side of the first deviation correcting roller 301, the front side of the composite steel roller 502, and above the second deviation correcting device 11. The swing tensioning device 9 above the second deviation correcting device 11 is arranged on the small wall panel 103 of the frame 1.

[0032] like Figure 6 , Figure 7 As shown, as a preference, the coated steel roller 404 is configured as a circulating heating roller, comprising an outer roller 4041, an outer spoke plate 4042, an inner roller 4043, a core shaft 4045, an inner spoke plate 4044, a connecting block 4046, a spiral guide plate 4047 and a one-way flow type rotary joint 4049, the outer spoke plates 4042 are arranged at both ends of the outer roller 4041, and are sealed and fixedly connected to the outer roller 4041, the inner roller 4043 is coaxially sleeved inside the outer roller 4041, the core shaft 4045 has two pieces, which are respectively arranged at both ends of the outer roller 4041, and pass through the corresponding end outer spoke plates 4042 and are inserted into the inner roller 4043, the inner spoke plate 4044 has four pieces, which are respectively evenly distributed at both ends and the inside of the inner roller 4043, and are sealed and fixedly connected to the inner roller 4043, the core shaft 4045 extends from the outer end to the inner roller 4 The interior of the end surface position section corresponding to 043 is set as a hollow structure, and four through holes 4048 are evenly distributed on the outer wall of the core shaft 4045 between the corresponding end outer spoke plate 4042 and the corresponding end surface of the inner roller 4043 are provided. Two one-way flow-type rotary joints 4049 are provided, which are sealed and connected to the outer ends of the two core shafts 4045 respectively, and are communicated with the corresponding core shaft 4045, and are used for external hot water pipes to input circulating hot water or hot oil between the outer wall of the inner roller 4043 and the inner wall of the outer roller 4041 to form a circulating heating water jacket. Four connecting blocks 4046 are evenly distributed on the circumference, and are provided between the inner wall of the outer roller 4041 and the outer wall of the inner roller 4043 and at the corresponding position of each inner spoke plate 4044; the connecting blocks 4046 strengthen the connection strength between the inner roller 4043 and the outer roller 4041.

[0033] A spiral guide plate 4047 is also provided between the inner wall of the outer roller 4041 and the outer wall of the inner roller 4043. When the spiral guide plate 4047 rotates together with the outer roller 4041, the hot water in the circulating heating water jacket is accelerated to flow along the spiral flow channel, thereby ensuring that the temperature of the outer surface of the outer roller is balanced and stable. The composite steel roller 502 is configured as a circulating heating roller, and its structure is consistent with that of the coating steel roller 404 .

[0034] like Figure 1As shown, as a preferred embodiment, both ends of the coating rubber roller 405 are installed on the second swing arm 407, one end of the second swing arm 407 far from the coating rubber roller 405 is hinged to the corresponding wall panel 101, and one end of the coating rubber roller 405 near the coating rubber roller 405 is connected to the piston rod of the coating cylinder 406 installed on the wall panel 101 through a joint bearing, and the coating cylinder 406 is connected to the power control system 16. When the coating cylinder 406 is started, the second swing arm 407 is driven to rotate around the hinge point to adjust the gap and pressure between the coating rubber roller 405 and the coating steel roller 404; Both ends of the composite rubber roller 501 are installed on the third swing arm 504, one end of the third swing arm 504 close to the composite rubber roller 501 is hinged to the corresponding wall panel 101, and one end of the composite rubber roller 501 far from the wall panel 101 is connected to the piston rod of the composite cylinder 503 installed on the wall panel 101 through a joint bearing, and the hinge point and the piston rod connection point on the third swing arm 504 are both arranged on the same side of the composite rubber roller 501. The composite cylinder 503 is connected to the power control system 16. When the composite cylinder 503 is started, the third swing arm 504 is driven to rotate around the hinge point to adjust the gap and pressure between the composite rubber roller 501 and the composite steel roller 502.

[0035] like Figure 8 As shown, as a preferred embodiment, the present embodiment further includes a manual adjustment device 12, which includes an adjustment roller 1201, a bearing seat 1202, a bearing sleeve 1203, an adjustment plate 1204, a manual adjustment screw 1205 and a clamping plate 1206. The two ends of the roller shaft of the adjustment roller 1201 are respectively sleeved in the bearing seat 1202 and the bearing sleeve 1203. A deep groove ball bearing is provided in the bearing seat 1202, and a self-aligning ball bearing is provided in the bearing sleeve 1203. The bearing seat 1202 is fixedly connected to the corresponding wall panel, and a square boss 12031 is provided on one side of the bearing sleeve 1203 near the corresponding wall panel. An adjustment plate 1204 is fixedly connected to the corresponding position of the corresponding wall panel corresponding to the bearing sleeve 1203, and a longitudinal rectangular through groove 12041 is provided on the adjustment plate 1204. The square boss 12031 is clamped in the rectangular through groove 12041, and a threaded hole is provided on the front side or rear side of the square boss 12031. A coaxial screw hole is provided on the side wall of the rectangular through groove 12041 corresponding to the threaded hole. The external threaded end of the manual adjusting screw 1205 passes through the screw hole and is threadedly connected with the threaded hole of the square boss 12031. One end of the clamping plate 1206 is fixedly connected to the wall panel, and the other end is sleeved with the other end of the manual adjusting screw 1205. The manual adjusting screw 1205 and the clamping plate 1206 form a rotatable connection. Rotating the manual adjusting screw 1205 can drive the corresponding end of the adjusting roller 1201 to move straightly forward and backward along the rectangular through groove 12041, so that the deviated belt material on the adjusting roller 1201 can be corrected.

[0036] There are two manual adjustment devices 12, which are respectively arranged above the composite steel roller and at the rear side of the coating rubber roller. The two manual adjustment devices 12 are used to adjust the position of the first unwinding strip before coating and before laminating.

[0037] When the quality of the material strip used for compounding is not good, although the strip is corrected and aligned during unwinding, it may still deviate in the middle of the process. At this time, the strip can be adjusted by the manual adjustment device 12 before entering the coating unit 4 and the compounding unit 5 to correct the position of the strip, thereby ensuring the quality of compounding and avoiding the cost waste of compounding scrap.

[0038] like Fig. 9 As shown, preferably, a left protective cover 13 and a right protective cover 14 are respectively provided on the outer sides of the left and right side wall panels 101 of the rack 1, a safety sliding door 15 is provided on the upper end of the front side, and a power control system 16 is provided on the right side wall of the right protective cover 14.

[0039] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A mini solvent-free laminating machine, comprising a frame, a first unwinding unit, a second unwinding unit, a coating unit, a laminating unit and a winding unit, wherein the frame comprises two wall panels arranged side by side in left and right directions and four support pipes arranged at the upper and lower ends between the two wall panels, the first unwinding unit is arranged at the front lower side of the wall panel, the coating unit is arranged above the first unwinding unit at the front side of the wall panel, the second unwinding unit and the winding unit are arranged at the rear upper side and rear lower side of the wall panel respectively, the coating unit comprises a metering roller, a transfer steel roller, a transfer rubber roller, a coating steel roller and a coating rubber roller arranged in sequence from the front lower side to the rear upper side, characterized in that: The compounding unit is arranged above and behind the coating unit in the middle of the frame, close to the coating unit, so that the distance between coating and compounding of the strip material discharged from the first unwinding unit is short, the compounding effect is better, and the tension is more balanced. The compounding unit includes a composite rubber roller arranged above and behind the coating rubber roller and a composite steel roller arranged above the composite rubber roller. The lateral distance L between the center line of the coating steel roller and the composite steel roller is set to 120-150mm.

2. A mini solvent-free laminating machine according to claim 1, characterized in that: A correction sensor is provided at the rear side of the first unwinding unit and the front side of the second unwinding unit. The correction sensor is connected to the power control system and is used to detect whether the strips unwound by the first unwinding unit and the second unwinding unit are centered.

3. The mini solvent-free laminating machine according to claim 2, characterized in that: The first unwinding unit includes a first triangular plate, a first optical axis, and a first support rod assembly; The first triangular plate is provided with two pieces, which are respectively arranged on the left and right sides of the first unwinding unit, and the plane of the first triangular plate is arranged horizontally; The first support rod assembly is provided with two pieces, which are respectively provided at two corners of the rear side of the first triangular plate. The first support rod assembly comprises a first steel pipe and first flanges fixedly connected to both ends of the first steel pipe. The first flanges at both ends are respectively fixedly connected to the first triangular plates on the corresponding sides. The first optical axis is provided with two parts, which are respectively sleeved in the two first support rod assemblies. The first optical axis passes through the first triangular plate on the left side, the first support rod assembly and the first triangular plate on the right side from left to right in sequence. The two ends of the first optical axis are respectively fixedly connected to the corresponding side wall panels of the frame. The first triangular plate, the first support rod assembly and the first optical axis form a linearly movable connection. First linear bearings are provided between the inner wall of the mounting hole through which the first optical axis passes and the outer cylindrical surface of the first optical axis at both ends of the two first triangular plates and the first support rod assembly.

4. The mini solvent-free laminating machine according to claim 3, characterized in that: The first unwinding unit is also provided with a first deviation-correcting device, which includes a first deviation-correcting roller, a connecting bracket and a deviation-correcting cylinder; The first deviation-correcting roller is arranged on the rear end of the plane of the first triangular plate through a bearing seat; The connecting bracket is fixedly connected to the rear side surface of the first triangular plate on one side; The deflection correction cylinder is fixedly connected to the connecting bracket, and the piston rod of the deflection correction cylinder is fixedly connected to the frame wall plate; The deflection correction cylinder is connected to the power control system. When the deflection correction cylinder is started, the first unwinding unit can be driven to move linearly left and right as a whole, thereby driving the first deflection correction roller to move linearly left and right to adjust the centering of the strip released by the first unwinding unit.

5. The mini solvent-free laminating machine according to claim 2, characterized in that: The second unwinding unit includes a second triangular plate, a second optical axis, and a second support rod assembly; The second triangular plate is provided with two pieces, which are respectively arranged on the left and right sides of the second unwinding unit. The second triangular plate is an isosceles triangle, and the upper and lower side surfaces are arranged symmetrically from top to bottom. The second brace assembly is provided with two pieces, which are respectively provided at the two corners of the front side of the second triangular plate. The second brace assembly includes a second steel pipe and second flanges fixedly connected to the two ends of the second steel pipe. The second flanges at the two ends are respectively fixedly connected to the second triangular plates on the corresponding sides. The second optical axis is provided with two parts, which are respectively sleeved in the two second support rod assemblies. The second optical axis passes through the left second triangular plate, the second support rod assembly and the right second triangular plate from left to right in sequence. The two ends of the second optical axis are respectively fixedly connected to the corresponding side wall panels of the frame. The second triangular plate and the second support rod assembly are both connected to the second optical axis in a linearly movable manner. Second linear bearings are provided between the inner wall of the mounting hole for the second optical axis to pass through and the outer cylindrical surface of the second optical axis at both ends of the two second triangular plates and the second support rod assembly.

6. The mini solvent-free laminating machine according to claim 5, characterized in that: The second unwinding unit is also provided with a second deviation correcting device, which includes a second deviation correcting roller, a third optical axis, a connecting assembly, a fourth optical axis, a ball screw linear moving mechanism and a driving motor; A third optical axis and a fourth optical axis are sequentially arranged on the upper middle part of the second triangular plate from bottom to top, and linear bearing seats are respectively arranged at both ends of the third optical axis and the fourth optical axis. Small wall panels extending backward are arranged at the upper ends of the rear sides of the left and right wall panels of the frame, and the linear bearing seats are fixedly connected to the corresponding small wall panels. A linear bearing is arranged in the linear bearing seat, and the third optical axis and the fourth optical axis are connected to the linear bearings in a linearly movable manner left and right; The connecting assembly is provided with two parts, which are respectively arranged on the inner side surfaces of the second triangular plates on the left and right sides, and the connecting assembly includes a linkage plate and a double clamping plate. The lower end of the linkage plate is fixedly connected to the middle part of the inner side surface of the second triangular plate on the corresponding side, and the upper end is sleeved on the third optical axis and fixedly connected to the third optical axis. The double clamping plate includes two clamping plates which are symmetrically arranged front and back. The upper end of the double clamping plate is sleeved on the fourth optical axis, and the lower end is sleeved on the third optical axis. The middle is locked by two locking bolts to fix the double clamping plate to the third optical axis and the fourth optical axis. The second deviation-correcting roller is sleeved in the middle of the fourth optical axis and is rotatably connected to the fourth optical axis; The ball screw linear movement mechanism comprises a ball screw and a screw nut, wherein the screw nut is inserted into a second triangular plate on one side, the ball screw is threadedly connected to the screw nut, a bearing sleeve is inserted into a position corresponding to the ball screw on a corresponding side wall plate of the frame, the end of the ball screw is fastened to the inner ring of the rolling bearing in the bearing sleeve, and the ball screw extending out of the bearing sleeve is connected to a driving motor; The drive motor is connected to the power control system. When the drive motor is started, it drives the ball screw to rotate, and the ball screw drives the screw nut to move linearly. The screw nut drives the second unwinding unit to move linearly left and right as a whole. The second triangular plate of the second unwinding unit moves linearly left and right together with the connecting component, the third optical axis, the fourth optical axis and the second deviation correction roller to adjust the centering of the strip released by the second unwinding unit.

7. A mini solvent-free laminating machine according to claim 1 or 6, characterized in that: It also includes a swing tensioning device, which includes a rotating shaft, a tension roller, a swing plate, an expansion coupling sleeve, a limit rod, a swing cylinder and a first swing arm; The rotating shaft is arranged horizontally, and both ends are rotatably connected to the left and right wall panels or small wall panels of the frame through bearing seats; The tension roller is parallel to the rotating shaft and is arranged below the rotating shaft, and a roller shaft is arranged inside the tension roller; The swing plate is respectively provided with a first through hole, a second through hole and a waist-shaped hole whose center is arranged on a vertical line from top to bottom, and a tightening sleeve is fixedly connected to the corresponding position of the first through hole on the swing plate, and the swing plate and the tightening sleeve are provided with two groups, which are respectively symmetrically sleeved on the inner sides of the bearing seats at both ends of the rotating shaft, and the tightening sleeve is tightened and fixedly connected with the rotating shaft; The left and right wall panels or small wall panels of the frame are provided with limit rods at positions corresponding to the second through holes, and the limit rods pass through the second through holes, and the aperture of the second through holes is 30±2 mm larger than the outer diameter of the position corresponding to the limit rods; The two ends of the roller shaft pass through the waist-shaped holes on the swing plates on both sides respectively, and the front and rear sides of the swing plates are provided with set screws at positions corresponding to the waist-shaped holes, which are used to lock and fix the two ends of the roller shaft; One end of the first swing arm is sleeved on the outer circumferential surface of the left end of the rotating shaft, disposed between the left end bearing seat and the swing plate, and fixedly connected to the rotating shaft, and the other end of the first swing arm extends backward, and a pin is inserted into the right side surface of the rearward extension; The swing cylinder is arranged just above or just below the pin shaft, the swing cylinder is fixedly connected to the frame wall plate or small wall plate through the cylinder seat shaft, and the swing cylinder piston rod is connected to the pin shaft through the joint bearing; When the material belt tension exceeds the normal production setting range, the swing cylinder will drive the tension roller to swing a certain angle, so that the material belt tension can be quickly restored to the normal setting range, so that the material belt production process can maintain a balanced and stable tension. The swing tensioning device is provided with three parts, which are respectively arranged at the rear side of the first deviation correcting roller, the front side of the composite steel roller, and above the second deviation correcting device. The swing tensioning device above the second deviation correcting device is arranged on the small wall plate of the frame.

8. The mini solvent-free laminating machine according to claim 1, characterized in that: The coated steel roller is configured as a circulating heating roller, including an outer roller, an outer spoke plate, an inner roller, a core shaft, an inner spoke plate, a connecting block, a spiral guide plate and a one-way flow type rotary joint. The outer spoke plates are arranged at both ends of the outer roller and are sealed and fixedly connected to the outer roller. The inner roller is coaxially sleeved inside the outer roller. The core shaft has two pieces, which are respectively arranged at both ends of the outer roller, and pass through the corresponding end outer spoke plates and are inserted into the inner roller. The inner spoke plate has a plurality of pieces, which are respectively evenly arranged at both ends and the inside of the inner roller and are sealed and fixedly connected to the inner roller. The core shaft extends from the outer end to the inner The interior of the position section at the corresponding end face of the roller is set as a hollow structure, and a plurality of through holes evenly distributed in a circumference are provided on the outer wall between the corresponding end outer spoke plate and the corresponding end face of the inner roller on the core shaft. The one-way flow type rotary joint is provided with two pieces, which are respectively sealed and connected to the outer ends of the two core shafts and communicated with the corresponding core shafts, and are used to connect to the external hot water pipe, and input hot water or hot oil between the outer side wall of the inner roller and the inner side wall of the outer roller to form a circulating heating water jacket. A plurality of connection blocks evenly distributed in a circumference are provided between the inner side wall of the outer roller and the outer side wall of the inner roller and at the corresponding position of each inner spoke plate; A spiral guide plate is also provided between the inner wall of the outer roller and the outer wall of the inner roller. When the spiral guide plate rotates with the outer roller, the hot water in the circulating heating water jacket is accelerated to flow along the spiral flow channel, thereby ensuring that the temperature of the outer surface of the outer roller is balanced and stable. The composite steel roller is configured as a circulating heating roller, and its structure is consistent with that of the coating steel roller.

9. The mini solvent-free laminating machine according to claim 1, characterized in that: Both ends of the coating rubber roller are installed on the second swing arm, one end of the second swing arm far from the coating rubber roller is hinged to the corresponding wall panel, and one end of the second swing arm near the coating rubber roller is connected to the piston rod of the coating cylinder installed on the wall panel through a joint bearing, and the coating cylinder is connected to the power supply control system, and the coating cylinder is started to drive the second swing arm to rotate around the hinge point to adjust the gap and pressure between the coating rubber roller and the coating steel roller; Both ends of the composite rubber roller are installed on the third swing arm, one end of the third swing arm close to the composite rubber roller is hinged to the corresponding wall panel, and one end far from the composite rubber roller is connected to the piston rod of the composite cylinder installed on the wall panel through a joint bearing, and the hinge point and the piston rod connection point on the third swing arm are both arranged on the same side of the composite rubber roller. The composite cylinder is connected to the power control system, and the composite cylinder is started to drive the third swing arm to rotate around the hinge point to adjust the gap and pressure between the composite rubber roller and the composite steel roller.

10. The mini solvent-free laminating machine according to claim 1, characterized in that: It also includes a manual adjustment device, which includes an adjustment roller, a bearing seat, a bearing sleeve, an adjustment plate, a manual adjustment screw and a clamping plate. The two ends of the roller shaft of the adjustment roller are respectively sleeved in the bearing seat and the bearing sleeve. The bearing seat is provided with a deep groove ball bearing, and the bearing sleeve is provided with a self-aligning ball bearing. The bearing seat is fixedly connected to the corresponding wall panel, and a square boss is provided on the side of the bearing sleeve close to the corresponding wall panel. The corresponding wall panel is fixedly connected with an adjustment plate at a corresponding position of the bearing sleeve, and a longitudinal rectangular through groove is provided on the adjustment plate. The square boss is clamped on the rectangular through groove. A threaded hole is provided on the front side or rear side of the square boss in the groove, and a coaxial screw hole is provided on the side wall corresponding to the threaded hole on the rectangular through slot. The external threaded end of the manual adjusting screw passes through the screw hole and is threadedly connected to the threaded hole of the square boss. One end of the clamping plate is fixedly connected to the wall panel, and the other end is sleeved with the other end of the manual adjusting screw. The manual adjusting screw and the clamping plate form a rotatable connection. Rotating the manual adjusting screw can drive the corresponding end of the adjusting roller to move straightly forward and backward along the rectangular through slot, so that the deviated material on the adjusting roller can be corrected.

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