CN210236554U - Full-automatic hot-pressing production line - Google Patents

Abstract

The utility model relates to a full-automatic hot pressing production line, including the unwinding mechanism who unreels at least one kind of lapping that sets gradually from the upper reaches to the low reaches, carry different sheet overlapping roller set that carry or carry single sheet, with coincide sheet hot briquetting device and the receiving agencies of hot briquetting, wherein hot briquetting device's both ends along the sheet direction of delivery are provided with main conveying roller set, follow conveying roller set and drive the first power component that main conveying roller set rotated respectively, connect through the transmission between follow conveying roller set and the main conveying roller set synchronous, with the linear speed rotation; the automatic forming machine has the advantages of high automation degree, high processing efficiency and good consistency of formed products.

Description

Full-automatic hot-pressing production line

Technical Field

The utility model relates to a car cushion processing equipment field especially relates to a full-automatic hot pressing production line.

Background

Automobile seats are indispensable interior trim parts of automobiles and generally comprise a sponge layer, a bottom layer and an outer lining. The outer lining can be made of different materials according to different requirements, such as wool automobile seat cushions and fur automobile seat cushions in winter, silk automobile seat cushions in summer and silk automobile seat cushions in summer. The manufacturing process can be divided into: hand-knitted, woven, and hand-needled automotive seat cushions. But the degree of automation is low due to the limitation of the elasticity, flexibility and other characteristics of the material.

Chinese patent with grant publication number CN206030523U discloses a car cushion integrated into one piece equipment, including base and mounting, the top of base is provided with top mounting panel, the left and right both sides position department symmetry of base is provided with four leg sleeves the top of base is provided with the roof, the leg sleeve fit in has the cradling piece, the cradling piece is connected the roof is four be provided with the fly leaf between the cradling piece, the below of fly leaf is provided with the upper portion mould, the top of top mounting panel is provided with the lower part mould, the top axle center position department of roof is provided with the hydraulic stem, the hydraulic stem has the output pole, the output pole passes the roof, the top of fly leaf is provided with the cooperation the cover portion that the output pole was used.

The defects of the prior art are that the problems of the integrity and the operation efficiency of the cushion formed by the automobile cushion are solved to a certain extent, but the sheets still need to be manually placed to the designated positions one by one; the degree of automation is still low, and the processing efficiency and the consistency of the formed product are not high enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a full-automatic hot pressing production line has degree of automation height, the advantage that the uniformity of the product after machining efficiency is high, the shaping is good.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a full-automatic hot pressing production line, includes from the upper reaches to the low reaches set gradually unreel the unwinding mechanism of the sheet of at least one kind lapping, with different sheet overlapping transport or carry single sheet's coincide roller set, with coincide sheet hot briquetting device and receiving agencies, wherein hot briquetting device's the both ends along sheet direction of delivery are provided with main roller set respectively, from carrying the roller set and driving main roller set pivoted first power component, it is synchronous, the rotation of synteny line speed to be connected through the transmission between roller set and the main roller set to carry from carrying the roller set.

By adopting the technical scheme, the raw materials are continuously unreeled in a sheet reeling mode, then the unreeled sheets are further actively conveyed and pre-overlapped through the overlapping roller group with the drive, the influence of the tension of the sheets before overlapping on subsequent transmission is reduced, the synchronous and linear transmission of the main conveying roller group and the auxiliary conveying roller group keeps the transmission speed of the inlet and the outlet of the hot press forming device consistent, and therefore, the extension degree of the sheets in the hot press forming device can be effectively controlled within a proper range as long as the tension degree of the sheets in the hot press forming device is ensured in the process of splicing the sheets; the problem that materials with high ductility performance such as cloth and sponge in the automobile cushion are not corresponding to each other in shrinkage or superposition after conveying, hot press forming and forming is reduced to the maximum extent, the technical problem that a production line is difficult to form in the field of automobile cushions is effectively solved, and the production efficiency is greatly improved by a full-automatic production line.

The utility model discloses further set up to: the main conveying roller group is disposed upstream of the hot press forming apparatus in a sheet conveying direction.

By adopting the technical scheme, in the synchronous transmission process, transmission errors caused by factors such as slipping or deformation exist, so that the driven roller is slightly faster than the driving rotating speed, and the main conveying roller group is arranged at the upstream and can resist the pulling force from one side of the superposed roller group in a pushing mode, thereby reducing the stretching condition of the sheets in the hot-press forming device.

The utility model discloses further set up to: the material receiving mechanism comprises an initial roller close to the secondary conveying roller set, a terminal roller far away from the secondary conveying roller set and a conveying belt, the conveying belt is wound on the initial roller and the terminal roller, and the conveying belt is in a net shape; the secondary conveying roller group and the initial roller are in transmission connection in a belt transmission mode and keep synchronous and same-linear-speed rotation.

By adopting the technical scheme, the conveying speed of the material receiving mechanism to the sheet is kept the same as that of the main conveying roller group and the auxiliary conveying roller group, so that the stretching condition of the conveying belt is reduced; the conveying belt conveys and receives materials, so that the cooling and solidifying time can be provided for the sheets which are subjected to hot pressing, and the heat dissipation effect is improved by the net-shaped conveying belt.

The utility model discloses further set up to: the main conveying roller set and the auxiliary conveying roller set respectively comprise fixing plates fixed on two sides of the frame or the hot pressing device, supporting plates fixed on the fixing plates, and lifting grooves which are used for the upper pressing rollers to rotate and move up and down and are connected to the lower pressing rollers of the supporting plates in a sliding mode.

Through adopting above-mentioned technical scheme, can carry out position control in order to adjust the gap size between last compression roller and the lower compression roller to last compression roller forms the nature with gravity and compresses tightly at the operation in-process, has also given the space of material automatic recovery deformation.

The utility model discloses further set up to: the top of the supporting plate is provided with a handle with a U-shaped open slot at the bottom, and the supporting plate is embedded in the U-shaped open slot and is abutted against the inner wall of the U-shaped open slot by the surfaces of two sides in the thickness direction; the lifting block is connected to the lifting groove in a sliding mode, the lifting rod which penetrates through the supporting plate and is fixedly connected with the lifting block is connected to the handle in a rotating mode, and the lifting block is arranged in a penetrating mode through the rotating shaft of the upper pressing roller.

By adopting the technical scheme, the upper and lower positions of the upper press roll can be adjusted by pulling the handle, after the handle is pulled upwards, the handle can be rotated by 90 degrees to enable the end surface of the handle to be abutted against the top of the supporting plate, at the moment, the maximum spacing state between the upper press roll and the lower press roll can be kept for sheets to pass through, and after the material passing operation is completed, the handle can be rotated again to be embedded with the supporting plate through the U-shaped open slot, and the position of the upper press roll is lowered again; simple structure, liberation personnel, one person can operate.

The utility model discloses further set up to: the lower compression roller is fixedly provided with at least two ends of the lower compression roller which are respectively close to the two ends of the lower compression roller, and the radial end surface of the deviation rectifying ring is abutted to the upper compression roller.

Through adopting above-mentioned technical scheme, on the one hand the ring of rectifying can provide rectifying to the sheet that unreels, and on the other hand can separate last compression roller and lower compression roller, avoids crushing the material, also makes the material possess the degree of freedom that certain recovery is flexible volume.

The utility model discloses further set up to: an inlet of the hot-pressing device is provided with a first detection assembly for detecting whether a transmission path of the sheet is vacant or not.

By adopting the technical scheme, after a coil of material of the unwinding mechanism is unwound, if the material is not continued, the first detection assembly detects the vacancy and provides an alarm; or the subsequent coiled materials are butted in advance, and a gap is cut out, so that the hot pressing device is prevented from hot pressing the joint part.

The utility model discloses further set up to: the unwinding mechanism comprises a support, at least one guide roller set and a floating roller, wherein the at least one guide roller set is rotatably connected with the support and is arranged between adjacent unwinding cylinders or on the downstream of the unwinding cylinders, the floating roller is connected with the sliding groove in an up-down sliding manner, the sliding groove is used for the floating roller to be embedded, the floating roller is arranged between the unwinding cylinders and the main conveying roller, and a contact switch which is in point contact with the floating roller for feedback is arranged on the moving path of the floating roller on the support.

By adopting the technical scheme, the unwinding cylinder can rotate to pre-pay out the sheet, and then the sheet can keep a small stretching amount while being conveyed by pulling the folding roller group, so that a good cushion can be made for the subsequent hot pressing; the floating roller has the freedom degree of sliding up and down, so that the sheet can be prevented from being stretched in a transition mode while tensioning is carried out, the sheet is not prone to deviation in the conveying process, the sheet is located in a relatively relaxed position for recovering the stretching amount before entering the hot pressing device, and the unwinding amount of the floating roller can be effectively controlled through the contact switch.

The utility model discloses further set up to: the mat material adding device comprises a material preparing roller, a material feeding roller group, a cutting assembly, a material receiving plate, a blocking piece, a third power assembly and a second power assembly, wherein the material preparing roller, the material feeding roller group, the cutting assembly, the material receiving plate, the blocking piece, the third power assembly and the second power assembly are sequentially arranged on the rack from upstream to downstream; the material receiving plate is arranged above one layer of sheet material of the laminating roller frame and the unreeling mechanism.

By adopting the technical scheme, the material in the middle layer is arranged on the material preparing roller in a coiled manner, then passes through the material conveying roller group and is pressed and conveyed by the material conveying roller group, on one hand, the material is drawn out from the material preparing roller and is conveyed to the material receiving plate, and the material receiving plate plays a role in bearing in the process; after the materials are conveyed to the material receiving plate, the stretching amount of the materials can be gradually recovered, when the materials move for a certain distance or abut against the blocking piece, the conveying of the feeding roller group is stopped, and the cutting assembly cuts the materials; after cutting, the material receiving plate moves, the material is blocked by the blocking piece and is separated from the material receiving plate at a fixed point and falls to the conveying mechanism, and at the moment, if the conveying mechanism conveys other sheets, the material can fall on the sheets in a piece; the effect of automatic adding sheet one by one on other continuous or periodic transport's sheet is realized, and intelligent degree is high, and the operating efficiency is high and add the material accurate. In addition, more than one conveying mechanism can be adopted, and the added materials are parts serving as filling, such as sponge cushions of automobile cushions.

The utility model discloses further set up to: the cutting assembly comprises a cutter frame, a lower cutting knife, a lifting cylinder and a discharging channel, wherein the cutter frame is arranged above one end of the feeding roller set, the lower cutting knife is fixed on the cutter frame, the lower cutting knife is connected to the upper cutting knife of the cutter frame in a sliding mode, the lifting cylinder is driven to slide up and down, the lifting cylinder is fixed on the cutter frame, one side of the cutting edge of the upper cutting knife and one side of the cutting edge of the lower cutting knife are staggered and close to each other in the moving process, a discharging channel for sheets passing through the feeding roller set is arranged between the lower cutting knife and the cutter frame, and the inclined plane.

By adopting the technical scheme, the tool rest provides a sliding channel for the upper cutting knife, the upper cutting knife and the lower cutting knife are staggered to form a shearing structure, and the lifting cylinder controls the upper cutting knife to move to form the shearing structure; the blowing passageway supplies the sheet to pass to being sheared by shear structure at the export, after separating, the breakpoint is located the tip part of cutting edge, and the feed roller group continues the pay-off, through the direction of cutting edge inclined plane part, the sheet passes the passageway that slides.

To sum up, the utility model discloses following beneficial effect has:

1. the problem that materials with high ductility such as cloth, sponge and the like in the automobile cushion are not corresponding to each other in shrinkage or superposition after conveying, hot press molding and molding is solved to the maximum extent, the technical problem that a production line is difficult to form in the field of automobile cushions is effectively solved, and the production efficiency is greatly improved by using a full-automatic production line;

2. the mode of conveying and receiving the materials by the conveying belt can provide cooling and solidifying time for the sheets finished by hot pressing, and the heat dissipation effect is improved by the aid of the net-shaped conveying belt.

Drawings

FIG. 1 is a structural view of a full-automatic hot-pressing line of embodiment 1;

FIG. 2 is an enlarged view at A of FIG. 1 of embodiment 1;

FIG. 3 is a structural view of a material collecting mechanism in embodiment 1;

FIG. 4 is a structural view of the full-automatic hot-pressing line of embodiment 2;

figure 5 is embodiment 2 of the mat adding device structure;

fig. 6 is a structural view of a stock preparation roll and its mounting structure of embodiment 2;

fig. 7 is a schematic structural view of the cutting assembly of embodiment 2.

In the figure, 1, an unwinding mechanism; 2. a folding roller set; 3. a hot press molding device; 4. a material receiving mechanism; 5. a pad adding device; 11. a support; 111. a chute; 12. placing the winding drum; 13. a guide roller set; 14. a floating roll; 15. a contact switch; 31. a main conveying roller set; 32. from the set of conveyor rolls; 33. a first power assembly; 34. a fixing plate; 35. a support plate; 351. a lifting groove; 352. a lifting block; 353. a handle; 354. a lifting rod; 355. an open slot; 36. a lower pressing roller; 361. a deviation rectifying ring; 37. an upper compression roller; 38. a first detection assembly; 41. an initial roller; 42. a terminal roller; 43. a conveyor belt; 51. preparing a material roller; 511. a roll shaft; 512. a roller frame; 513. a roller groove; 5131. a chute section; 5132. a horizontal segment; 5133. stopping the opening; 52. a feeding roller set; 53. a cutting assembly; 531. a tool holder; 532. a lower cutter; 533. an upper cutter; 534. a lifting cylinder; 535. a wear plate; 536. a discharge channel; 54. a material receiving plate; 55. a blocking member; 56. a third power assembly; 57. a second power assembly; 571. a push cylinder; 572. pushing the joint; 561. a point contact switch; 58. and a frame.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: as shown in fig. 1, the full-automatic hot-pressing production line includes an unwinding mechanism 1 for unwinding at least one rolled sheet, a folding roller set 2 for overlapping or conveying different sheets or conveying a single sheet, a hot-press forming device 3 for hot-press forming the folded sheet, and a material receiving mechanism 4, which are sequentially arranged from upstream to downstream.

The unwinding mechanism 1 comprises a support 11, unwinding drums 12 rotatably connected to the support 11, a guide roller set 13 arranged between adjacent unwinding drums 12 or downstream of the unwinding drums 12, and a floating roller 14. The guide roller group 13 is separately provided with a driving motor for providing conveying power, the bracket 11 is provided with a sliding groove 111 for the floating roller 14 to be embedded and connected with the sliding groove 111 in a vertically sliding manner. The dancer roll 14 is provided between the unwinding roll 12 and the folding roll group 2, and the support 11 is provided with a contact switch 15 which is in point contact with the dancer roll 14 and feeds back the same on a moving path of the dancer roll 14. In actual use, the sheet is wound around the lower surface of the dancer roller 14, and when the guide roller group 13 unwinds the sheet too much, the sheet sinks and touches the contact switch 15. The sheet passes around the dancer roll 14, moves towards the folding roll stack 2 and thereafter enters the thermoforming apparatus 3.

Referring to fig. 1 and 2, a main conveying roller set 31, a sub conveying roller set 32 and a first power assembly 33 driving the main conveying roller set 31 to rotate are respectively arranged at two ends of the hot press forming device 3 along the sheet conveying direction, the main conveying roller set 31 is arranged at the upstream of the hot press forming device 3 along the sheet conveying direction, and the sub conveying roller set 32 and the main conveying roller set 31 are connected through transmission to rotate synchronously at the same linear speed.

The main conveying roller group 31 and the auxiliary conveying roller group 32 both comprise fixing plates 34 fixed on both sides of a rack or a hot pressing device, a supporting plate 35 fixed on the fixing plates 34, a lower pressing roller 36 with both ends rotatably connected to the supporting plate 35, and an upper pressing roller 37 connected to the supporting plate 35 in a vertically sliding manner, wherein two deviation rectifying rings 361 respectively close to both ends of the lower pressing roller 36 are fixed on the lower pressing roller 36 along the length direction, and the radial end surfaces of the deviation rectifying rings 361 are abutted against the upper pressing roller 37 so as to separate the lower pressing roller 36 and the upper pressing roller 37 into a certain gap. The supporting plate 35 is provided with a lifting groove 351 for the upper pressing roller 37 to rotate and move up and down, a lifting block 352 is connected in the lifting groove 351 in a sliding manner, and a rotating shaft of the upper pressing roller 37 penetrates through the lifting block 352. A handle 353 with a U-shaped opening groove 355 at the bottom is arranged at the top of the support plate 35, and the support plate 35 is embedded in the U-shaped opening groove 355 and the two side surfaces in the thickness direction are abutted against the inner wall of the U-shaped opening groove 355; the handle 353 is rotatably connected with a lifting rod 354 which passes through the supporting plate 35 and is fixedly connected with the lifting block 352. The inlet of the hot press apparatus is provided with a first detection member 38 that detects whether there is a void in the transport path of the sheet.

Referring to fig. 3, the material receiving mechanism 4 includes a start roller 41 close to the secondary roller group 32, a final roller 42 far from the secondary roller group, and a conveyor belt 43, the conveyor belt 43 is wound around the start roller 41 and the final roller 42, and the conveyor belt 43 is in a mesh shape; the secondary conveying roller group and the initial roller 41 are in transmission connection through a belt transmission mode, and synchronous and same-linear-speed rotation is kept.

Sheet mounting manner:

referring to fig. 1 and 2, the sheet is drawn from the unwinding cylinder 12 and sequentially drawn from the conveying roller group 32, the upper and lower positions of the upper press roller 37 are adjusted by pulling the handle 353 while drawing the sheet from the roller group, and after the handle 353 is pulled up, the handle 353 is rotated by 90 ° to abut the end surface of the handle 353 against the top of the support plate 35, at which time the maximum interval between the upper press roller 37 and the lower press roller 36 is maintained to allow the sheet to pass therethrough, and after the drawing operation is completed, the handle 353 is rotated again to engage the support plate 35 through the U-shaped open groove 355 to lower the position of the upper press roller 37 again.

The working mode is as follows:

the guide roller firstly leads the sheet out of the unreeling cylinder 12 and sinks at the floating roller 14 until the sheet starts to contact the switch 15; then the main conveying roller set 31, the secondary conveying roller set 32 and the material receiving mechanism 4 are started simultaneously, and are rotated synchronously at the same linear speed by the connection of the transmission structure, so that the sheets are driven to pass through the hot press forming device 3 at intervals and are hot-pressed, and the hot press forming device 3 is a hot press driven by an air cylinder to drive a mould to move up and down.

The material receiving mode is as follows:

after the unwinding of the unwinding cylinder 12 is finished, a new unwinding cylinder 12 is replaced, two rolls of sheets are connected end to end, the connected parts are hollowed out, when the hollowed-out parts pass through the first detection assembly 38, the vacancy is detected, and the joint part is directly moved to cross the hot press forming device 3.

Example 2: as shown in fig. 4 and 5, the difference from embodiment 1 is that the full-automatic hot-pressing production line includes a mat adding device 5 perpendicular to the conveying direction of the sheet, the mat adding device 5 includes a material preparing roller 51, a material feeding roller set 52, a cutting assembly 53, a material receiving plate 54, a blocking member 55, a third power assembly 56 for providing conveying power for the material feeding roller set 52, and a second power assembly 57 for driving the material receiving plate 54 to be far away from or close to the material feeding roller set 52 along the conveying direction of the material feeding roller set 52, the blocking member 55 is fixed on the bracket 11 and blocked on the upper surface of the material receiving plate 54 or on both sides of the material receiving plate 54, the area below the material receiving plate 54 is the area between the floating roller 14 and the folding roller set 2, and one end of the blocking member 55 facing the material feeding roller set 52 is provided with a point contact switch 561.

Referring to fig. 6, the stock roll 51 is provided with roll shafts 511 at both ends thereof, the frame 58 is provided with a roll frame 512, and the roll frame 512 is provided with a roll groove 513 having an opening into which the roll shafts 511 are fitted. The roller groove 513 comprises a chute section 5131, a horizontal section 5132 and a spigot 5133 which is obliquely higher than the horizontal section 5132, wherein the chute section 5131 is lower than the horizontal section 5132; the opening is arranged above the horizontal section 5132, and the inclined groove section 5131 is smoothly connected with the horizontal section 5132.

The feeding roller group 52 also comprises a support plate 35, a lower press roller 36 with two ends rotatably connected to the support plate 35, and an upper press roller 37 connected to the support plate 35 in a vertically sliding manner, wherein the third power assembly 56 is a motor which drives the lower press roller 36 to rotate.

Referring to fig. 5 and 7, the cutting assembly 53 includes a cutter holder 531 disposed above one end of the conveying mechanism near the feed roller group 52, a lower cutter 532 fixed to the cutter holder 531, an upper cutter 533 slidably connected to the cutter holder 531, and a lifting cylinder 534 for driving the upper cutter 533 to slide up and down, wear-resistant plates 535 fixed to surfaces of the cutter holder 531 opposite to both sides of the upper cutter 533, and the cutter holder 531 slides along a channel formed by the wear-resistant plates 535. A discharge passage 536 through which the sheet passing through the feed roller group 52 passes is provided between the lower cutter 532 and the cutter holder 531, and the inclined surface portion of the cutting edge of the lower cutter 532 is located on the side close to the feed roller group 52. The distance between the knife holder 531 and the feed roller set 52 is sufficient to allow the sheet cut by the upper cutter 533 and the lower cutter 532 to be pushed through the discharge passage 536 by the feed roller set 52, and when the distance has to be extended, a plate for holding is provided between the knife holder 531 and the feed roller set 52. The lifting cylinder 534 is fixed on the top of the knife rest 531, and the sides of the upper cutter 533 and the lower cutter 532 where the cutting edges are located are staggered and close in the moving process.

The second power assembly 57 includes a pushing cylinder 571 fixed on the frame and a pushing joint 572 fixed on an end of the plug rod of the pushing cylinder 571, and the receiving plate 54 is fixed on a bottom of the pushing joint 572.

The working principle is as follows:

the preparation roll 51 with the web is loaded into the roll stand, the web is drawn out from the preparation roll 51, passes through the feed roll group 52 and the cutting assembly 53, and the size of the interval between the upper press roll 37 and the lower press roll 36 can be preset by the handle 353 before passing through the feed roll group 52 for more convenient passing. During operation, the rotation of the feed roller set 52 provides the power for pulling and feeding the web material through the feeding channel to the receiving plate 54. After the coiled material touches the touch switch 561, the cutting assembly 53 cuts the coiled material and moves the contact plate away from the feeding roller set 52 along with the second power assembly 57. After moving a certain position, the web is stopped by the stop 55 and begins to disengage from the tab and fall into the conveyor mechanism, completing the stacking of the sheet material with other materials.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws within the scope of the present invention.

Claims (10)

1. The utility model provides a full-automatic hot pressing production line which characterized by: the automatic sheet feeding and discharging device comprises an unwinding mechanism (1) which is sequentially arranged from upstream to downstream and used for unwinding at least one rolled sheet, a laminating roller set (2) for overlapping and conveying different sheets or conveying a single sheet, a hot press forming device (3) for hot press forming the laminated sheet and a material receiving mechanism (4), wherein a main conveying roller set (31), a secondary conveying roller set (32) and a first power assembly (33) driving the main conveying roller set (31) to rotate are respectively arranged at two ends of the hot press forming device (3) along the sheet conveying direction, and the secondary conveying roller set (32) and the main conveying roller set (31) are connected in a synchronous and collinear speed rotation mode through transmission.

2. The full-automatic hot-pressing production line according to claim 1, characterized in that: the main conveying roller set (31) is arranged on the upstream of the hot press molding device (3) along the sheet conveying direction.

3. The full-automatic hot-pressing production line according to claim 2, characterized in that: the material receiving mechanism (4) comprises an initial roller (41) close to the secondary conveying roller group (32), a terminal roller (42) far away from the secondary conveying roller group (32) and a conveying belt (43), the conveying belt (43) is wound on the initial roller (41) and the terminal roller (42), and the conveying belt (43) is in a net shape; the secondary conveying roller group (32) and the initial roller (41) are in transmission connection in a belt transmission mode and keep synchronous and same-line-speed rotation.

4. The full-automatic hot-pressing production line according to claim 1, characterized in that: the main conveying roller set (31) and the auxiliary conveying roller set (32) comprise fixing plates (34) fixed on two sides of the rack (58) or the hot pressing device, supporting plates (35) fixed on the fixing plates (34), lower pressing rollers (36) with two ends rotatably connected to the supporting plates (35) and upper pressing rollers (37) connected to the supporting plates (35) in a vertically sliding mode, and lifting grooves (351) for the upper pressing rollers (37) to rotate and move vertically are formed in the supporting plates (35).

5. The full-automatic hot-pressing production line according to claim 4, characterized in that: the top of the supporting plate (35) is provided with a handle (353) with a U-shaped opening groove (355) at the bottom, and the supporting plate (35) is embedded in the U-shaped opening groove (355) and is abutted against the inner wall of the U-shaped opening groove (355) through the surfaces of the two sides in the thickness direction; the lifting groove (351) is connected with a lifting block (352) in a sliding mode, the handle (353) is rotatably connected with a lifting rod (354) which penetrates through the supporting plate (35) and is fixedly connected with the lifting block (352), and a rotating shaft of the upper pressing roller (37) penetrates through the lifting block (352).

6. The full-automatic hot-pressing production line according to claim 4, characterized in that: and at least two deviation rectifying rings (361) which are respectively close to the two ends of the lower pressing roller (36) are fixed on the lower pressing roller (36), and the radial end surfaces of the deviation rectifying rings (361) are abutted against the upper pressing roller (37).

7. The full-automatic hot-pressing production line according to claim 4, characterized in that: the inlet of the hot-pressing device is provided with a first detection assembly (38) for detecting whether a blank exists on a conveying path of the sheet.

8. The full-automatic hot-pressing production line according to claim 1, characterized in that: unwinding mechanism (1) including support (11), at least one rotation connect in the section of thick bamboo (12) that unreels of support (11), locate adjacent between the section of thick bamboo (12) of putting or put guide roller set (13) and the upper and lower floating roll (14) of sliding connection in spout (111) of the low reaches of section of thick bamboo (12), be provided with spout (111) that supply floating roll (14) scarf joint on support (11), floating roll (14) are located and are put between section of thick bamboo (12) and the main conveying roller, be provided with on support (11) on the moving path of floating roll (14) with contact switch (15) of floating roll (14) point contact feedback.

9. The full-automatic hot-pressing production line according to claim 8, characterized in that: the mat material adding device (5) is vertical or oblique to the conveying direction of the sheet materials, and comprises a material preparing roller (51), a feeding roller group (52), a cutting assembly (53), a material receiving plate (54), a blocking piece (55), a third power assembly (56) for providing conveying power for the feeding roller group (52), and a second power assembly (57) for driving the material receiving plate (54) to be far away from or close to the feeding roller group (52) along the conveying direction of the feeding roller group (52), wherein the material receiving roller (51), the feeding roller group (52), the cutting assembly (53), the material receiving plate (54), the blocking piece (55), the third power assembly and the second power assembly are sequentially arranged on a rack (58) from upstream to downstream; the material receiving plate (54) is arranged above one layer of sheet material of the laminating roller frame (512) and the unreeling mechanism (1).

10. The full-automatic hot-pressing production line according to claim 9, characterized in that: cutting assembly (53) including locate knife rest (531) that conveying mechanism is close to the top of the one end of pay-off roller group (52), be fixed in lower cutting knife (532) of knife rest (531), slide and connect in last cutting knife (533) of knife rest (531) and drive go up lifting cylinder (534) that cutting knife (533) slided from top to bottom, lifting cylinder (534) are fixed in knife rest (531), one side at the cutting edge place of going up cutting knife (533) and lower cutting knife (532) is crisscross being close to at the removal in-process, be provided with blowing passageway (536) that the sheet that supplies to pass through pay-off roller group (52) between cutting knife (532) and knife rest (531) down, the inclined plane part of the cutting edge of cutting knife (532) is located the one side that is close to pay-off roller group (52).

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