CN215203920U - Solvent-free compound machine - Google Patents

Abstract

The utility model discloses a solventless laminator, which comprises a base, two first extension boards of upside fixedly connected with of base, two it is connected with the substrate roller to rotate between the first extension board, two second extension boards of upside intermediate position fixedly connected with of base. The utility model discloses be equipped with two surge drums, collect and accomplish the back, close the motor, extrude the surge drum to one side spread groove, the second dwang of surge drum extrusion one side, extrude the first reset spring of homonymy behind the second dwang atress, make opposite side second dwang break away from the spread groove earlier, no longer extrude behind the second dwang, make the second dwang of one side also break away from the spread groove gradually, take off the surge drum, directly change, contrast compounding machine on the existing market, a collection device has increased more, can all collect two collection devices and unify the change after full, reduce the time of changing, improve production speed and production quantity, personnel's work load has also been less.

Description

Solvent-free compound machine

Technical Field

The utility model relates to a compounding machine technical field especially relates to a solvent-free compounding machine.

Background

The solvent-free compound machine is a method for compounding two or more base materials by adopting a solvent-free adhesive, is also called as reaction type compounding, can be suitable for equipment for compounding the solvent-free adhesive and is called as the solvent-free compound machine, the solvent-free compound machine adopted at home and abroad at present is mostly in two-layer compounding, a single-station winding and unwinding structure is adopted, the application range of the solvent-free compounding is very wide, and the solvent-free compound machine is widely applied to the food and medicine packaging industry due to the characteristics of environmental protection, sanitation and high efficiency.

However, in the prior art, most of the collection of the compound machines is single-roll collection, the whole device needs to be stopped and disassembled during collection, and then a new collection device is installed, so that the time consumption is large, the whole working efficiency is influenced, the glue amount required for different base materials is different, but most of the compound machines cannot adjust the glue amount according to different base materials during working at present, and further the quality of the base materials is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a solvent-free compounding machine to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a solventless laminator, includes the base, two first extension boards of upside fixedly connected with of base, two rotate between the first extension board and be connected with the substrate roller, two second extension boards of upside intermediate position fixedly connected with of base, two rotate between the second extension board and be connected with the compression roller, two be equipped with the rubber coating device between the second extension board, two third extension boards of base upside fixedly connected with rotate on every third extension board and are connected with the connecting rod, be per two that the symmetry set up be equipped with collection device between the connecting rod, the upside fixedly connected with motor of base, equal transmission is connected with the belt on the output shaft of motor and one side of two connecting rods, wherein one side be equipped with fixing device on the lateral wall of second extension board.

As a further improvement scheme of the technical scheme: the gluing device comprises two fixing rods, the two fixing rods are respectively and fixedly connected to the opposite side walls of the two second support plates, a rubber cylinder is fixedly connected between the fixing rods, a rubber outlet is formed in the side wall of the rubber cylinder, a sealing plug is arranged on the side wall of the rubber cylinder, an adjusting cylinder is sleeved on the outer surface of the rubber cylinder, the inner diameter of the adjusting cylinder is matched with the outer diameter of the rubber cylinder, a plurality of rubber outlet holes are formed in the adjusting cylinder, and a plurality of adjusting holes are formed in the side wall of the adjusting cylinder.

As a further improvement scheme of the technical scheme: the fixing device comprises a movable groove, the movable groove is formed in the side wall of the second support plate, an adjusting rod is connected to the inner wall of the movable groove in a sliding mode, a knob is fixedly connected to one end of the adjusting rod, the adjusting rod penetrates through the movable groove, and one end, away from the knob, of the adjusting rod is in threaded connection with the inner wall of the adjusting hole.

As a further improvement scheme of the technical scheme: every collection device includes two spread grooves, every the spread groove is seted up respectively on the lateral wall of two connecting rods, every the first reset spring of fixedly connected with on the end lateral wall of spread groove, every be equipped with the second dwang in the spread groove, every two fixedly connected with collection section of thick bamboo, every between the second dwang the second fixed slot, every have been seted up to second dwang upside be equipped with stop device on the connecting rod.

As a further improvement scheme of the technical scheme: stop device includes that the upper end is the first solid fixed cylinder that seals the setting, every first solid fixed cylinder fixed connection is on the lateral wall of connecting rod, sliding connection has the bottom to be the solid fixed cylinder of second that seals the setting in the first solid fixed cylinder, the solid fixed cylinder of second runs through the last lateral wall of first solid fixed cylinder, the upper end fixedly connected with pull rod of the solid fixed cylinder of second, fixedly connected with second reset spring between the lateral wall on the inside end lateral wall of the solid fixed cylinder of second and the inside of first solid fixed cylinder, the bottom and the second fixed slot phase-match of the solid fixed cylinder of second.

As a further improvement scheme of the technical scheme: the glue outlet holes are different in aperture, and the glue outlet holes are divided into a large type, a medium type and a small type.

As a further improvement scheme of the technical scheme: the bottom ends of the first support plate, the second support plate and the third support plate are fixed at the upper ends and are linearly arranged.

As a further improvement scheme of the technical scheme: the upside fixedly connected with protection casing of base, fixedly connected with UV lamp on the inside upper shed wall of protection casing.

Compared with the prior art, the beneficial effects of the utility model are that:

the device is provided with two collecting barrels, after collection is completed, a motor is turned off, the collecting barrels are extruded towards a connecting groove at one side, the collecting barrels extrude a second rotating rod at one side, the second rotating rod extrudes a first return spring at the same side after being stressed, the second rotating rod at the other side is separated from the connecting groove firstly, and after the second rotating rod is not extruded, the second rotating rod at one side is also separated from the connecting groove gradually, the collecting barrels are taken down and directly replaced, compared with the compound machine in the current market, one collecting device is additionally arranged, replacement of one collecting device is not needed, the two collecting devices can be collected fully and then replaced uniformly, the replacement time is shortened, the production speed and the production quantity are improved, and the workload of personnel is reduced; glue is constantly smeared on the substrate from a glue outlet in the rotation process of the glue cylinder, the knob is rotated to drive the adjusting rod to rotate, after the adjusting rod is in threaded connection with the adjusting hole, the adjusting cylinder is fixed and still rotates continuously, the glue outlet is adjusted according to the glue amount required by the substrate to match with glue outlets of different models, after adjustment is completed, the knob is rotated reversely, the adjusting rod is separated from the adjusting hole, the adjusting cylinder is not fixed any more, the glue cylinder rotates to drive the adjusting cylinder to rotate, the glue requirement of different substrates is met, a plurality of adjusting holes are formed in the side wall of the adjusting cylinder, adjustment can be performed at any time in the production process, a plurality of glue outlets are formed in the adjusting cylinder, the glue outlets are different in pore diameter, and the glue outlets can be directly adjusted according to the substrate.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic front sectional structural view of a solvent-free compound machine according to the present invention;

fig. 2 is a schematic cross-sectional structure view of a collecting device of a solvent-free compound machine according to the present invention;

FIG. 3 is a schematic perspective view of FIG. 2;

fig. 4 is a schematic cross-sectional structure diagram of a glue spreading device of a solvent-free compound machine according to the present invention;

fig. 5 is a schematic view of a three-dimensional structure of a glue cylinder of a solvent-free compound machine according to the present invention;

fig. 6 is a schematic view of a three-dimensional structure of an adjusting cylinder of the solvent-free compound machine according to the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 2;

fig. 8 is an enlarged schematic view of a portion B of fig. 4.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a base; 2. a protective cover; 3. a UV lamp; 4. a first support plate; 5. a substrate roll; 6. a second support plate; 7. a compression roller; 8. fixing the rod; 9. a rubber cylinder; 10. a glue outlet; 11. a sealing plug; 12. An adjusting cylinder; 13. a glue outlet hole; 14. an adjustment hole; 15. a movable groove; 16. adjusting a rod; 17. A knob; 18. a motor; 19. a belt; 20. a third support plate; 21. a connecting rod; 22. a first return spring; 23. a first fixed cylinder; 24. a second return spring; 25. a second fixed cylinder; 26. a pull rod; 27. a second rotating lever; 28. a second fixing groove; 29. a collection canister; 30. and connecting the grooves.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1 to 8, in an embodiment of the present invention, a solvent-free compound machine, includes a base 1, two first supporting plates 4 fixedly connected to an upper side of the base 1, a substrate roller 5 is rotatably connected between the two first supporting plates 4, two second supporting plates 6 fixedly connected to an upper middle position of the base 1, a compression roller 7 is rotatably connected between the two second supporting plates 6, a glue coating device is disposed between the two second supporting plates 6, two third supporting plates 20 fixedly connected to an upper side of the base 1, a connecting rod 21 is rotatably connected to each third supporting plate 20, a collecting device is disposed between each two connecting rods 21 symmetrically disposed, a motor 18 is fixedly connected to an upper side of the base 1, a belt 19 is drivingly connected to an output shaft of the motor 18 and one side of the two connecting rods 21, and a fixing device is disposed on a side wall of one of the second supporting plate 6.

Referring to fig. 4, 5 and 6, the glue spreading device includes two fixing rods 8, the two fixing rods 8 are respectively and fixedly connected to a side wall of the two second support plates 6, a glue cylinder 9 is fixedly connected between the two fixing rods 8, a glue outlet 10 is formed in a side wall of the glue cylinder 9, a sealing plug 11 is arranged on a side wall of the glue cylinder 9, an adjusting cylinder 12 is sleeved on an outer side surface of the glue cylinder 9, an inner diameter of the adjusting cylinder 12 is matched with an outer diameter of the glue cylinder 9, a plurality of glue outlet holes 13 are formed in the adjusting cylinder 12, a plurality of adjusting holes 14 are formed in a side wall of the adjusting cylinder 12, the sealing plug 11 is opened, glue is injected into the glue cylinder 9, the glue cylinder 9 is sealed by the sealing plug 11 after injection, the glue cylinder 9 is fixed between the two second support plates 6 through the fixing rods 8, the glue in the glue cylinder 9 continuously flows downwards from the glue outlet 10 through the glue outlet 13, when the base material passes through the side wall of the glue outlet 13, glue is coated on a base material, when the glue outlet amount needs to be adjusted, a knob 17 is rotated, the knob 17 rotates to drive an adjusting rod 16 to rotate, after the adjusting rod 16 is separated from an adjusting hole 14, an adjusting cylinder 12 can rotate on the rubber cylinder 9, glue outlet holes 13 with different apertures on the adjusting cylinder 12 can sequentially rotate to the position below a glue outlet 10, then the glue outlet 10 is adjusted to be matched with glue outlet holes 13 with different models according to the glue amount needed by the base material, after adjustment is completed, the knob 17 is rotated reversely, the adjusting rod 16 is in threaded connection with the adjusting hole 14, the adjusting cylinder 12 is fixed on the side wall of the rubber cylinder 9, when the base material passes through between the adjusting cylinder 12 and a press roller 7, glue can be coated on the surface of the base material according to the glue requirement of different base materials, and the quality of the base material is improved.

Referring to fig. 4 and 8, the fixing device includes a movable groove 15, the movable groove 15 is formed on the side wall of the second support plate 6, an adjusting rod 16 is slidably connected to the inner wall of the movable groove 15, a knob 17 is fixedly connected to one end of the adjusting rod 16, the adjusting rod 16 penetrates through the movable groove 15, one end of the adjusting rod 16, which is away from the knob 17, is in threaded connection with the inner wall of the adjusting hole 14, the knob 17 is rotated to drive the adjusting rod 16 to rotate, after the adjusting rod 16 is in threaded connection with the adjusting hole 14, the adjusting cylinder 12 is fixed on the rubber cylinder 9, when the adjusting cylinder 12 needs to be adjusted to rotate on the rubber cylinder 9, the knob 17 is rotated reversely, so that the adjusting rod 16 is separated from the adjusting hole 14, the adjusting cylinder 12 can rotate on the side wall of the rubber cylinder 9, the glue requirement amount of different base materials is met, the operation is simple, the glue outlet amount of the glue does not need to be increased by slowing down the production speed, and the quality of the base materials is also improved.

Referring to fig. 2, 3 and 7, each collecting device includes two connecting slots 30, each connecting slot 30 is respectively opened on the side walls of two connecting rods 21, a first return spring 22 is fixedly connected on the bottom side wall of each connecting slot 30, a second rotating rod 27 is arranged in each connecting slot 30, a collecting cylinder 29 is fixedly connected between each two second rotating rods 27, a second fixing groove 28 is formed on the upper side of each second rotating rod 27, a limiting device is arranged on each connecting rod 21, after the motor 18 is started, the motor 18 rotates to drive the two belts 19 to rotate, the two belts 19 rotate to respectively drive the two connecting rods 21 to rotate, each connecting rod 21 rotates to drive the second rotating rod 27 to rotate, each second rotating rod 27 rotates to drive the collecting cylinder 29 to rotate, the collecting cylinder 29 continuously collects the reacted substrates, and when the collecting cylinder 29 finishes collecting, the motor 18 is turned off, the motor 18 no longer rotates, the collecting cylinder 29 also stops rotating, first, the second fixed cylinder 25 is upwards moved through the pull rod 26, the bottom end of the second fixed cylinder 25 is separated from the second fixed groove 28, then the collecting cylinder 29 is extruded to the connecting groove 30 on one side, the collecting cylinder 29 extrudes the second rotating rod 27 on one side, the second rotating rod 27 is stressed and then extrudes the first return spring 22 on the same side, the second rotating rod 27 on the other side is separated from the connecting groove 30 first, after the second rotating rod 27 is not extruded, the second rotating rod 27 on one side is also gradually separated from the connecting groove 30, the collecting cylinder 29 is taken down, the collecting cylinder 29 has two parts, after the collecting cylinder 29 finishes collecting, the base material can be directly installed on the other collecting cylinder 29, the replacement time is shortened, the working efficiency is improved, the unnecessary time is shortened, and the production quantity is improved.

Referring to fig. 3 and 7, the limiting device includes first fixed cylinders 23 with upper ends closed, each first fixed cylinder 23 is fixedly connected to a side wall of a connecting rod 21, a second fixed cylinder 25 with lower ends closed is slidably connected to the first fixed cylinder 23, the second fixed cylinder 25 penetrates through an upper side wall of the first fixed cylinder 23, a pull rod 26 is fixedly connected to an upper end of the second fixed cylinder 25, a second return spring 24 is fixedly connected between an inner bottom side wall of the second fixed cylinder 25 and an inner upper side wall of the first fixed cylinder 23, a lower end of the second fixed cylinder 25 is matched with the second fixed slot 28, when the collecting cylinder 29 is required to be installed and fixed between two connecting rods 21, the second fixed cylinder 25 is firstly moved upwards by the pull rod 26 to enable the lower end of the second fixed cylinder 25 to leave the second fixed slot 28, and then the collecting cylinder 29 is squeezed towards a side connecting slot 30, the second dwang 27 of a collecting cylinder 29 extrusion one side, extrude the first reset spring 22 of homonymy behind the second dwang 27 atress, make the second dwang 27 of opposite side slide to the connecting groove 30 inner wall, no longer extrude behind the second dwang 27 of one side, under the effort of the first reset spring 22 of one side, the one end of every second dwang 27 supports one side at every first reset spring 22, no longer stimulate pull rod 26, under second reset spring 24's effort, the bottom of the fixed section of thick bamboo 25 of second supports the upper end at second fixed slot 28, it is fixed with second dwang 27 and connecting groove 30, avoid making a collecting cylinder 29 rock back and forth in connecting groove 30 because of the vibration that the rotation produced in the collection process, influence the speed and the quality of collecting.

Referring to fig. 6, the apertures of the glue outlets 13 are different, the glue outlets 13 are divided into three types, namely large, medium and small, the amount of glue required for the base materials of different materials is different, and the glue outlets 13 of different types have different glue outlet amounts, so that the glue outlet amount can be directly adjusted according to the base materials, and the quality of the composite material is improved.

Referring to fig. 1, the bottom ends of the first support plate 4, the second support plate 6 and the third support plate 20 are all fixed at the upper end of the base 1 and are linearly arranged, so that a series of operations of coating, reacting, collecting and the like on a substrate can be completed conveniently, and the operation is simple and convenient.

Referring to fig. 1, a protective cover 2 is fixedly connected to the upper side of a base 1, a UV lamp 3 is fixedly connected to the inner upper side wall of the protective cover 2, the protective cover 2 prevents glue from spilling on the ground during gluing, so that resource waste and adverse effects are avoided, the UV lamp 3 can enhance the curing speed of the glue, and the reaction speed between substrates is increased.

The utility model discloses a theory of operation is:

opening a sealing plug 11, injecting glue into a rubber barrel 9, sealing the rubber barrel 9 by using the sealing plug 11 after injection, enabling a base material on a base material roller 5 to pass through the lower part of the rubber barrel 9 and to be wound on the outer side of a collecting barrel 29, fixing the rubber barrel 9 between two second support plates 6 through a fixing rod 8, enabling the glue in the rubber barrel 9 to continuously flow downwards from a glue outlet 10 through a glue outlet 13, smearing the glue on the base material when the base material passes through the side wall of the glue outlet 13, rotating a knob 17 when the glue outlet amount needs to be adjusted, rotating the knob 17 to drive an adjusting rod 16 to rotate, enabling the adjusting barrel 12 to rotate on the rubber barrel 9 after the adjusting rod 16 is separated from an adjusting hole 14, enabling the glue outlet 13 with different apertures on the adjusting barrel 12 to sequentially rotate to the lower part of the glue outlet 10, then adjusting the glue outlet 10 to be matched with glue outlet 13 with different models according to the glue amount needed by the base material, reversely rotating the knob 17 after adjustment is completed, the adjusting rod 16 is connected with the adjusting hole 14 by screw thread, the adjusting cylinder 12 is fixed on the side wall of the rubber cylinder 9, when the base material passes between the adjusting cylinder 12 and the press roller 7, the surface of the base material can be coated with glue according to the glue requirement of different base materials, when the collecting cylinder 29 is required to be installed and fixed between the two connecting rods 21, the second fixing cylinder 25 is lifted upwards by the pull rod 26, so that the bottom end of the second fixing cylinder 25 leaves the second fixing groove 28, then the collecting cylinder 29 is extruded to the connecting groove 30 at one side, the collecting cylinder 29 extrudes the second rotating rod 27 at one side, the second rotating rod 27 is stressed to extrude the first return spring 22 at the same side, so that the second rotating rod 27 at the other side slides to the inner wall of the connecting groove 30, after the second rotating rod 27 at one side is not extruded any more, under the action force of the first return spring 22 at one side, one end of each second rotating rod 27 is abutted against one side of each first return spring 22, the pull rod 26 is not pulled any more, under the action force of the second return spring 24, the bottom end of the second fixed cylinder 25 is abutted against the upper end of the second fixed groove 28, the second rotating rod 27 is fixed with the connecting groove 30, after the motor 18 is started, the motor 18 rotates to drive the two belts 19 to rotate, the two belts 19 respectively drive the two connecting rods 21 to rotate, each connecting rod 21 rotates to drive the second rotating rod 27 to rotate, each second rotating rod 27 rotates to drive the collecting cylinder 29 to rotate, the collecting cylinder 29 rotates to continuously collect the reacted base materials, after the collection of the collecting cylinder 29 is completed, the motor 18 is turned off, the motor 18 does not rotate any more, the collecting cylinder 29 also stops rotating, the second fixed cylinder 25 is lifted upwards through the pull rod 26 to enable the bottom end of the second fixed cylinder 25 to leave the second fixed groove 28, then the collecting cylinder 29 is extruded to the connecting groove 30 at one side, the collecting cylinder 29 extrudes the second rotating rod 27 at one side, extrude first reset spring 22 of homonymy behind second dwang 27 atress, make opposite side second dwang 27 take off earlier from spread groove 30, no longer extrude second dwang 27 after, make the second dwang 27 of one side also break away from spread groove 30 gradually, take off collecting vessel 29, collecting vessel 29 has two, can directly install the substrate on another collecting vessel 29 after collecting completion at collecting vessel 29, reduce the change time, protection casing 2 avoids the device to hand over glue at the rubber coating in-process and spills subaerial, cause wasting of resources and harmful effects, the solidification rate of glue can be strengthened to UV lamp 3, accelerate the reaction rate between the substrate.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (8)

1. The solvent-free compound machine comprises a base (1) and is characterized in that two first support plates (4) are fixedly connected to the upper side of the base (1), a base material roller (5) is rotatably connected between the two first support plates (4), two second support plates (6) are fixedly connected to the middle position of the upper side of the base (1), a compression roller (7) is rotatably connected between the two second support plates (6), a gluing device is arranged between the two second support plates (6), two third support plates (20) are fixedly connected to the upper side of the base (1), a connecting rod (21) is rotatably connected to each third support plate (20), a collecting device is arranged between every two symmetrically arranged connecting rods (21), a motor (18) is fixedly connected to the upper side of the base (1), and a belt (19) is respectively connected to an output shaft of the motor (18) and one side of each two connecting rods (21) in a transmission manner, and a fixing device is arranged on the side wall of the second support plate (6) on one side.

2. The solventless laminator according to claim 1, wherein the glue spreading device comprises two fixing rods (8), the two fixing rods (8) are respectively and fixedly connected to opposite side walls of the two second support plates (6), a glue cylinder (9) is fixedly connected between the two fixing rods (8), a glue outlet (10) is formed in a side wall of the glue cylinder (9), a sealing plug (11) is arranged on a side wall of the glue cylinder (9), an adjusting cylinder (12) is sleeved on an outer side surface of the glue cylinder (9), an inner diameter of the adjusting cylinder (12) is matched with an outer diameter of the glue cylinder (9), a plurality of glue outlet holes (13) are formed in the adjusting cylinder (12), and a plurality of adjusting holes (14) are formed in a side wall of the adjusting cylinder (12).

3. The solvent-free compound machine according to claim 1, wherein the fixing device comprises a movable groove (15), the movable groove (15) is formed in the side wall of the second support plate (6), an adjusting rod (16) is slidably connected to the inner wall of the movable groove (15), a knob (17) is fixedly connected to one end of the adjusting rod (16), the adjusting rod (16) penetrates through the movable groove (15), and one end of the adjusting rod (16) away from the knob (17) is in threaded connection with the inner wall of the adjusting hole (14).

4. The solvent-free compound machine according to claim 1, wherein each collecting device comprises two connecting grooves (30), each connecting groove (30) is respectively arranged on the side wall of two connecting rods (21), a first return spring (22) is fixedly connected to the bottom side wall of each connecting groove (30), a second rotating rod (27) is arranged in each connecting groove (30), a collecting cylinder (29) is fixedly connected between every two second rotating rods (27), a second fixing groove (28) is arranged on the upper side of each second rotating rod (27), and a limiting device is arranged on each connecting rod (21).

5. The solvent-free compound machine according to claim 4, wherein the limiting device comprises first fixed cylinders (23) with upper ends arranged in a closed manner, each first fixed cylinder (23) is fixedly connected to the side wall of the connecting rod (21), second fixed cylinders (25) with bottom ends arranged in a closed manner are slidably connected to the first fixed cylinders (23), the second fixed cylinders (25) penetrate through the upper side walls of the first fixed cylinders (23), pull rods (26) are fixedly connected to the upper ends of the second fixed cylinders (25), second return springs (24) are fixedly connected between the inner bottom side walls of the second fixed cylinders (25) and the inner upper side walls of the first fixed cylinders (23), and the bottom ends of the second fixed cylinders (25) are matched with the second fixing grooves (28).

6. The solvent-free compound machine according to claim 2, wherein the glue outlet holes (13) have different diameters, and the glue outlet holes (13) are divided into three types, i.e., large, medium and small.

7. The solvent-free compound machine as claimed in claim 1, wherein the bottom ends of the first support plate (4), the second support plate (6) and the third support plate (20) are fixed on the upper end of the base (1) and are arranged linearly.

8. The solventless laminator according to claim 1, wherein a protective cover (2) is fixedly connected to an upper side of the base (1), and a UV lamp (3) is fixedly connected to an inner upper side wall of the protective cover (2).

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