CN216688569U

CN216688569U - Cold pressing device

Info

Publication number: CN216688569U
Application number: CN202123456631.9U
Authority: CN
Inventors: 陈志伟; 周敬华
Original assignee: Suzhou Aimei Fibre Technology Co ltd
Current assignee: Suzhou Aimei Fibre Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-07
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a cold pressing device which comprises an upper roller, a lower roller and an auxiliary roller parallel to the upper roller and the lower roller, wherein the auxiliary roller is made of aluminum alloy; two ends of the upper roll are provided with first fixing frames, two ends of the secondary roll are provided with second fixing frames, two ends of the upper roll and the secondary roll are provided with first sliding mechanisms, and the first sliding mechanisms are used for enabling the upper roll and the secondary roll to move along the horizontal direction; the second fixing frame comprises a second sliding mechanism and an elastic piece, the second sliding mechanism is used for enabling the auxiliary roller to move along the vertical direction, and the elastic piece is used for enabling the auxiliary roller to have the tendency of moving in a reciprocating mode along the vertical direction. According to the cold pressing device, the auxiliary roller made of the light aluminum alloy material automatically moves up and down in the vertical direction, so that the phenomenon that the thickness of a cotton sample at the mesh belt joint is too thin to cause too large thickness change is avoided, and the cotton sample can achieve the effect of thinning; this cold pressing device after improvement can satisfy the production requirement of thick cotton and thin cotton simultaneously to lower transformation cost realizes different demands.

Description

Cold pressing device

Technical Field

The utility model relates to the technical field of non-woven product production equipment, in particular to a cold pressing device.

Background

Due to the requirement of the product, the thickness of the produced hot air shaping cotton needs to be thinned, so that the thickness of the product meets the target requirement. In general equipment, such as a hot rolling mill, a hot rolling and polishing device is installed, and a cotton sample is thinned after being subjected to hot pressing through heating of a power supply. However, the hot rolling mill is generally large (the diameter of the hot pressing roller is generally larger than 50cm), so the energy consumption is also high, and a pair of transmission type double rollers (the diameter is about 20cm) with a slightly larger diameter are generally arranged at the back of an oven of the device, one roller is arranged above the mesh belt and can be adjusted in height, and the other roller is fixed below the mesh belt and is tightly attached to the mesh belt and synchronously rotates along with the mesh belt of the oven. And after the cotton sample is just taken out of the oven, under the condition of high temperature (higher than low melting point temperature), setting the distance between the two rollers (lower than the thickness of the cotton sample when the cotton sample is taken out of the oven) to ensure that the cotton sample reaches the target shaping thickness through cold pressing, wherein on one hand, the thickness of the cotton sample reaches the target requirement, and on the other hand, the fiber short staple on the surface layer of the cotton sample is thinned. However, when some thin products are produced, for example, the thickness is less than 3mm, due to the thickness of the mesh belt joint (spiral oxnose joint, the thickness of which is more than 4mm than the mesh belt thickness; even the thinnest spliced mesh belt, the thickness of the joint is about 2mm thicker than the mesh belt), when the cotton sample passes through the compression roller along with the mesh belt joint, the thickness of the joint is suddenly reduced, so that the thickness of the joint is lower than the target requirement.

SUMMERY OF THE UTILITY MODEL

In view of the above, in order to overcome the defects of the prior art, the present invention aims to provide an improved cold pressing device, which is used for solving the problem that the thickness of the cotton sample at the mesh belt joint is lower than the target requirement when the thinner cotton sample passes through the upper and lower cold pressing rollers along with the mesh belt joint in the prior art.

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

a cold pressing device comprises an upper roller, a lower roller and an auxiliary roller parallel to the upper roller and the lower roller, wherein the auxiliary roller is made of aluminum alloy; the upper roller and the secondary roller are both positioned above the lower roller, first fixing frames are arranged at two ends of the upper roller, second fixing frames are arranged at two ends of the secondary roller, and the first fixing frames are fixedly connected with the second fixing frames; the two ends of the upper roller and the secondary roller are provided with first sliding mechanisms, the first sliding mechanisms are used for enabling the upper roller and the secondary roller to move along the horizontal direction, and the first sliding mechanisms are connected with the first fixing frame and the second fixing frame; the second fixing frame comprises a second sliding mechanism and an elastic piece, the second sliding mechanism is used for supplying the auxiliary roller to move in the vertical direction, one end of the elastic piece is connected with the auxiliary roller, and the elastic piece is used for enabling the auxiliary roller to have the tendency of moving in the vertical direction in a reciprocating mode.

Through newly-increasing a secondary roller in original cold press device, it adopts light material aluminum alloy to make, and the dead weight is little, and when the cotton sample passed through the secondary roller along with the guipure joint, the secondary roller can upwards cluster and move compression elastic component, avoids pressing the cotton sample of guipure joint department and has become thin excessively, and the release of rethread elastic component drives the secondary roller and cluster downwards and move in order to playback. In addition, the arrangement of the first sliding mechanism and the second sliding mechanism enables the positions of the upper roller and the sub roller in the horizontal direction to be adjustable, the positions of the sub roller in the vertical direction to be adjustable, the positions of the upper roller, the lower roller and the sub roller are adjusted, thick cotton and thin cotton products can be produced through the cold pressing device, and the thickness of the products can meet the target requirements.

According to a preferred implementation aspect of the present invention, the second sliding mechanism includes a connecting plate, a fixed block, two vertical rods, and a rotating shaft connected to the connecting plate, the fixed block is parallel to the connecting plate, and the end of the fixed block on the same side as the connecting plate is flush with the end of the connecting plate. In some embodiments of the present invention, the first fixing frame and the second fixing frame each include a supporting rod, wherein two vertical rods are located between the supporting rod of the first fixing frame and the supporting rod of the second fixing frame, the two vertical rods are respectively attached to the supporting rods close to the two vertical rods, and the two supporting rods of the first fixing frame and the second fixing frame can also limit and fix the second sliding mechanism, so as to prevent the second sliding mechanism from swaying left and right in the horizontal direction.

According to a preferred implementation aspect of the utility model, two ends of the connecting plate and the fixing block are respectively and correspondingly provided with a first through groove and a second through groove, the shapes of the first through groove and the second through groove are matched with the shapes of the upright posts, and each upright post penetrates through the first through groove and the second through groove. The diameter of the auxiliary roller is smaller than the diameters of the upper roller and the lower roller, two ends of the auxiliary roller are fixedly connected with the two fixing blocks respectively, at least one through hole penetrating through the connecting plate in the thickness direction is formed in the connecting plate, and the connecting plate is connected with the fixing blocks through fixing rods. Connecting plate and fixed block lead to the groove through first logical groove and second, can follow two pole settings and reciprocate, because companion roll and fixed block fixed connection to can drive the removal of companion roll in vertical side, be convenient for adjust the distance between the cotton sample of companion roll and below. The connecting plate is provided with a through hole and is connected with the fixing block through a fixing rod, so that the distance between the connecting plate and the fixing block is adjustable, and the auxiliary roller connected with the fixing block can move up and down under the action of external force.

According to a preferred implementation aspect of the utility model, the fixing rod penetrates through the through hole, a blocking part is arranged at one end of the fixing rod, which is far away from the fixing block, and the outer diameter of the blocking part is larger than the diameter of the through hole. The blocking portion is used for limiting the fixed rod in the vertical direction of the fixed rod, and the fixed block and the fixed rod are prevented from falling off when the fixed block and the fixed rod integrally continue to move downwards.

According to a preferred embodiment of the present invention, the elastic member is located between the connecting plate and the fixing block, and both ends of the elastic member are respectively fixedly connected to the connecting plate and the fixing plate; the length of the elastic piece in a natural state is equal to the distance between the connecting plate and the fixing plate when the lower surface of the blocking part is attached to the upper surface of the connecting plate. Through the position of adjusting last roller and auxiliary roller for when the cotton sample passes through the great guipure of thickness and connects the department, just be located the below of auxiliary roller, because the auxiliary roller dead weight is little, can be in guipure joint department jack-up that makes progress, the elastic component then is compressed, and drive the fixed block rebound, thereby drive the dead lever along a through-hole rebound segment distance. When the mesh belt joint continues to move forwards, the fixed block moves downwards under the action of the resilience force of the elastic part, so that the auxiliary roller connected with the fixed block is driven to move downwards to the reset position. The auxiliary roller is designed to be capable of moving up and down, and the problem that the thickness of a thin cotton sample at the mesh belt joint is too thin and does not reach the standard is avoided.

According to a preferred implementation aspect of the utility model, the rotating shaft comprises a limiting part, the limiting part is located at one end, close to the connecting plate, of the rotating shaft, the limiting part comprises a first part and a second part, and the outer diameter of the first part is smaller than that of the rotating shaft and that of the second part.

According to a preferred implementation aspect of the utility model, a boss and clamping parts located at two sides of the boss are arranged on the side surface, close to the rotating shaft, of the connecting plate, the two clamping parts are arranged oppositely, each clamping part comprises a side plate and an extension block, the side plate is located between the extension block and the boss, and the extension block is flush with the side plate and one side, far away from the rotating shaft, of the boss; the end parts, close to each other, of the two extending blocks are provided with grooves, the grooves are arc-shaped, the length of each groove is equal to the height of the corresponding extending block, an accommodating cavity for accommodating the first part is formed between the two grooves, the outer diameters of the rotating shaft and the second part are larger than the diameter of the accommodating cavity, and the width of each extending block is larger than that of the side plate. In some embodiments of the present invention, the first portion of the position-limiting portion of the end portion of the rotating shaft and the accommodating cavity are matched with each other, so that the first portion can rotate in the accommodating cavity. The external diameter of pivot and second portion all is greater than the diameter that holds the chamber, and the external diameter of first portion is less than the external diameter of pivot and second portion, make the top that holds the chamber play fixed action and spacing to the bottom of pivot, the bottom that holds the chamber plays fixed action and spacing to the junction of first portion and second portion, thereby make first portion can only be fixed in and hold the intracavity, be convenient for drive the removal of the clamping part and the boss of being connected with it through removing the pivot, and then drive the removal of connecting plate and fixed block, finally make the secondary roller can reciprocate along vertical direction. In addition, the width of extension piece is greater than the width of curb plate for the bottom surface of extension piece can play limiting displacement to the second portion.

According to a preferred implementation aspect of the present invention, third fixing frames are disposed at two ends of the secondary roller, the first sliding mechanism includes a first bottom plate and a second bottom plate that are parallel to each other, the first bottom plate and the second bottom plate are both perpendicular to a moving direction of the second sliding mechanism, the first bottom plate is fixedly connected to the first fixing frame and one side of the second fixing frame away from the upper roller, the second bottom plate is fixedly connected to the third fixing frames, a sliding groove penetrating through a thickness direction of the first bottom plate is formed in one side of the first bottom plate away from the first fixing frame, and the first bottom plate is slidably connected to the second bottom plate. In some embodiments of the present invention, a bolt is disposed through the sliding groove, one end of the bolt passes through the second bottom plate and is fixedly connected to the second bottom plate, the bolt enables the first bottom plate and the second bottom plate to be connected with each other, the bolt is fixed relative to the second bottom plate, and the bolt is moved left and right along the sliding groove by pushing the first bottom plate, so as to realize position adjustment of the upper roller and the auxiliary roller in the horizontal direction.

According to a preferred aspect of the present invention, the second fixing frame includes a mounting plate fixedly connected to a top end of the vertical rod, the mounting plate being perpendicular to the vertical rod; set up the mounting hole that runs through its thickness direction on the mounting panel, be provided with the internal thread on the mounting hole, the outer wall of pivot be provided with the external screw thread that the internal thread of mounting hole matches, the pivot runs through the mounting hole, the pivot with the mounting panel passes through external screw thread and internal thread rotate to be connected. In some embodiments of the utility model, a rotating handle is arranged at one end of the rotating shaft far away from the limiting part, the rotating shaft and the mounting plate are relatively rotated by rotating the rotating handle, so that the rotating shaft can vertically move up and down, and finally, the auxiliary roller can vertically move up and down along with the rotation of the rotating shaft through a series of arrangements of the clamping part, the boss, the connecting plate and the fixing block.

Preferably, in some embodiments of the present invention, the first fixing frame and the third fixing frame are identical in structure and arrangement, and the first fixing frame and the third fixing frame are both provided with a third sliding mechanism, wherein the third sliding mechanism of the first fixing frame is configured to drive the upper roller to move back and forth in the vertical direction, and the third sliding mechanism of the third fixing frame is configured to drive the lower roller to move back and forth in the vertical direction, so that the positions of the upper roller and the lower roller in the vertical direction are adjustable.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the beneficial effects that: according to the cold pressing device, the auxiliary roller made of the light aluminum alloy material automatically moves up and down in the vertical direction, so that the phenomenon that the thickness of a cotton sample at the mesh belt joint is too thin to cause too large thickness change is avoided, and the cotton sample achieves the effect of thinning; this cold pressing device after improvement can satisfy the production requirement of thick cotton and thin cotton simultaneously to lower transformation cost realizes different demands.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a perspective view of a cold press apparatus in a preferred embodiment of the utility model;

FIG. 2 is a front view of a cold press apparatus in a preferred embodiment of the utility model;

FIG. 3 is a perspective view of the whole of the fixing block, the connecting plate and the clamping portion of the first fixing frame of the cold pressing device in the preferred embodiment of the present invention;

in the attached drawings, an upper roller-1, a lower roller-2, a secondary roller-3, a first fixing frame-4, a second fixing frame-5, an elastic member-51, a connecting plate-52, a first through groove-521, a through hole-522, a fixing block-53, a second through groove-531, a vertical rod-54, a rotating shaft-55, a first part-551, a second part-552, a rotating handle-553, a fixing rod-56, a blocking part-57, a boss-58, a side plate-591, an extending block-592, a groove-5921, a first sliding mechanism-6, a first bottom plate-61, a sliding groove-611, a second bottom plate-62, a bolt-63, a third fixing frame-7, a mounting plate-8 and a supporting rod-9.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, the cold pressing device of the present embodiment includes an upper roller 1, a lower roller 2, and an auxiliary roller 3 parallel to the upper roller 1 and the lower roller 2, wherein the upper roller 1 and the auxiliary roller 3 are both located above the lower roller 2; two ends of the upper roller 1 are provided with first fixing frames 4, two ends of the auxiliary roller 3 are provided with second fixing frames 5, and two ends of the lower roller 2 are provided with third fixing frames 7; the first fixing frame 4 is fixedly connected with the second fixing frame 5; two ends of the upper roller 1 and the secondary roller 3 are provided with a first sliding mechanism 6 for the upper roller 1 and the secondary roller 3 to move along the horizontal direction, and the first sliding mechanism 6 is connected with a first fixing frame 4 and a second fixing frame 5; the second fixing frame 5 comprises a second sliding mechanism for the auxiliary roller 3 to move along the vertical direction, and the first fixing frame 4 and the third fixing frame 7 further comprise a third sliding mechanism for the upper roller 1 or the lower roller 2 to move along the vertical direction. The sub-roll 3 of the present embodiment is made of an aluminum alloy, the diameter of the sub-roll 3 is smaller than the diameters of the upper roll 1 and the lower roll 2, and the mass of the sub-roll 3 is 3 kg.

The second sliding mechanism of the present embodiment includes a connecting plate 52, a fixing block 53 parallel to the connecting plate 52, two vertical rods 54, and a rotating shaft 55 connected to the connecting plate 52, and the end of the fixing block 53 on the same side as the connecting plate 52 is flush. As shown in fig. 3, the connecting plate 52 and the fixing block 53 have a first through slot 521 and a second through slot 531 at two ends thereof, the shapes of the first through slot 521 and the second through slot 531 are matched with the shape of the upright 54, and each upright 54 penetrates through the first through slot 521 and the second through slot 531. The connecting plate 52 and the fixing block 53 can move up and down along the two vertical rods 54 through the first through groove 521 and the second through groove 531, and the auxiliary roller 3 is fixedly connected with the fixing block 53, so that the auxiliary roller 3 can be driven to move in the vertical direction, and the distance between the auxiliary roller 3 and a cotton sample below the auxiliary roller is convenient to adjust. And the upright rod 54 is matched and matched with the first through groove 521 and the second through groove 531, so that the stability of the connecting plate 52 and the fixing block 53 is kept when the connecting plate 52 and the fixing block 53 move along the first through groove 521 and the second through groove 531, and the left-right shaking in the moving process is avoided.

Two ends of the auxiliary roller 3 are respectively and fixedly connected with the two fixing blocks 53, the connecting plate 52 is provided with four through holes 522 penetrating through the thickness direction of the connecting plate, the four fixing rods 56 respectively penetrate through the four through holes 522, and the fixing rods 56 can move up and down along the through holes 522; one end of the fixing rod 56 is fixedly connected with the fixing block 53, the other end of the fixing rod 56 is provided with a blocking part 57, and the outer diameter of the blocking part 57 is larger than the diameter of the through hole 522. The blocking portion 57 is used for limiting the fixing rod 56 in the vertical direction of the fixing rod 56, and prevents the connection plate 52 from falling off from the fixing rod 53 when the fixing rod 56 and the fixing rod 53 integrally continue to move downward.

An elastic piece 51 is arranged between the connecting plate 52 and the fixed block 53, two ends of the elastic piece 51 are respectively fixedly connected with the connecting plate 52 and the fixed plate, and the elastic piece 51 is used for enabling the auxiliary roller 3 to have the tendency of moving up and down along the vertical direction. In this embodiment, the length of the elastic member 51 in the natural state is equal to the distance between the connecting plate 52 and the fixing plate when the lower surface of the stopper 57 is attached to the upper surface of the connecting plate 52, and the elastic member 51 of this embodiment is preferably a spring. The auxiliary roller 3 has small self weight and can be jacked up upwards at the mesh belt joint, at the moment, the elastic element 51 is compressed and drives the fixed block 53 to move upwards, so that the fixed rod 56 is driven to move upwards for a short distance along the through hole 522; the excessive thinness of the thickness of the thin cotton sample at the mesh belt joint is avoided, and the sample can be guaranteed to be thinned.

First mount 4 and second mount 5 all include bracing piece 9, and wherein, two pole settings 54 are located between bracing piece 9 of first mount 4 and the bracing piece 9 of second mount 5, and two pole settings 54 laminate rather than the bracing piece 9 that is close to respectively, and two bracing pieces 9 of first mount 4 and second mount 5 also can play spacing and fixed action to second slide mechanism, prevent that it from rocking about the horizontal direction. The second fixing frame 5 of the embodiment further comprises a mounting plate 8 fixedly connected with the top end of the upright 54, the mounting plate 8 is perpendicular to the upright 54, a mounting hole penetrating through the mounting plate 8 in the thickness direction is formed in the mounting plate, and an internal thread is formed in the hole wall of the mounting hole; the outer wall of pivot 55 is provided with the external screw thread that matches with the internal thread of mounting hole, and this mounting hole is run through to pivot 55, and pivot 55 is connected through external screw thread and internal thread rotation with mounting panel 8. In addition, a rotary handle 553 is further arranged at one end of the rotating shaft 55 far away from the limiting part, and the rotating shaft 55 and the mounting plate 8 are relatively rotated by rotating the rotary handle 553, so that the rotating shaft 55 vertically moves up and down.

The end of the rotating shaft 55 far away from the rotating handle 553 further comprises a limiting part, and the limiting part comprises a first part 551 and a second part 552, wherein the outer diameter of the first part 551 is smaller than the outer diameter of the rotating shaft 55 and the second part 552. Corresponding to the arrangement of the limiting part, a boss 58 and clamping parts located at two sides of the boss 58 are arranged on the side surface of the connecting plate 52 close to the rotating shaft 55, and the two clamping parts are arranged oppositely. The clamping portion comprises a side plate 591 and an extension block 592, the side plate 591 is located between the extension block 592 and the boss 58, and the extension block 592 is flush with the side plate 591 and one side of the boss 58 away from the rotating shaft 55; the end parts of the two extending blocks 592 close to each other are provided with arc-shaped grooves 5921, the length of each groove 5921 is equal to the height of the corresponding extending block 592, a containing cavity for containing the first portion 551 is formed between the two grooves 5921, the outer diameters of the rotating shaft 55 and the second portion 552 are both larger than the diameter of the containing cavity, and the width of the corresponding extending block 592 is larger than that of the side plate 591. The bottom that holds the chamber plays fixed and limiting displacement to the junction of first portion 551 and second portion 552, the top that holds the chamber plays fixed and limiting displacement to the junction of pivot 55 with first portion 551, thereby make first portion 551 only can be fixed in and hold the intracavity, be convenient for drive the removal of the clamping part and the boss 58 of being connected with it through rotating pivot 55, and then drive the removal of connecting plate 52 and fixed block 53, finally make vice roller 3 can reciprocate along vertical direction.

As shown in fig. 1 and 2, the first sliding mechanism 6 includes a first bottom plate 61 and a second bottom plate 62 that are parallel to each other, and both the first bottom plate 61 and the second bottom plate 62 are perpendicular to the moving direction of the second sliding mechanism, wherein the first bottom plate 61 is fixedly connected to one side of the first fixing frame 4 and the second fixing frame 5 that is far away from the upper roller 1, and the second bottom plate 62 is fixedly connected to the third fixing frame 7. One side of the first bottom plate 61, which is far away from the first fixing frame 4, is provided with a sliding groove 611 penetrating through the thickness direction of the first bottom plate 61, a bolt 63 penetrates through the sliding groove 611, one end of the bolt 63 penetrates through the second bottom plate 62 and is fixedly connected with the second bottom plate 62, and the other end of the bolt 63 is located above the sliding groove 611 to play a limiting role. The bolt 63 is fixed to the second bottom plate 62, and by pushing the first bottom plate 61, the bolt 63 is moved leftward and rightward along the slide groove 611, thereby adjusting the positions of the upper roller 1 and the sub roller 3 in the horizontal direction.

The working process of the cold pressing device of the embodiment is as follows:

according to the thickness requirement of a product to be thinned, the first bottom plate 61 is moved firstly, the auxiliary roller 3 and the lower roller 2 below are staggered, the third sliding mechanisms on the first fixing frame 4 and the third fixing frame 7 are adjusted to increase the distance between the upper roller 1 and the lower roller 2, and the cotton sample is prevented from being pressurized by the upper roller 1 and the lower roller 2. And then the rotating handle 553 is rotated to make the rotating shaft 55 move, thereby driving the clamping part connected with the rotating shaft, the boss 58 and the connecting plate 52 to move, further making the fixing block 53 and the auxiliary roller 3 move upwards or downwards until the distance between the auxiliary roller 3 and the mesh belt is proper, when the cotton sample is taken out of the oven, the cotton sample moves along with the mesh belt and passes through the auxiliary roller 3 at first, for the cotton sample at the joint of the mesh belt, the auxiliary roller 3 can be jacked upwards when passing through the auxiliary roller 3, so that the auxiliary roller 3 drives the fixing block 53 to move upwards, the fixing rod 56 moves upwards along the through hole 522, and the elastic element 51 is also compressed, the cotton sample is thinned due to the contact of the auxiliary roller 3 and the cotton sample, and meanwhile, the auxiliary roller 3 is jacked upwards, so that the thickness of the cotton sample is prevented from being too thin. When the mesh belt joint continues to move forward, the fixed block 53 and the auxiliary roller 3 are driven to move downwards to the reset position under the action of the resilience force of the elastic element 51, and cotton samples only pass between the upper roller 1 and the lower roller 2 and cannot contact with the upper roller 1 and the lower roller 2, so that the thickness of the cotton samples cannot be influenced.

And for the cotton sample with conventional thickness or thicker thickness, the first sliding mechanism 6 is adjusted to enable the upper roller 1 and the lower roller 2 to be aligned up and down, the second sliding mechanism is adjusted to enable the sub-roller 3 to move upwards for one end distance, and the cotton sample is ensured not to be contacted with the sub-roller 3.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The cold pressing device is characterized by comprising an upper roller, a lower roller and an auxiliary roller parallel to the upper roller and the lower roller, wherein the auxiliary roller is made of aluminum alloy; the upper roller and the auxiliary roller are both positioned above the lower roller, first fixing frames are arranged at two ends of the upper roller, second fixing frames are arranged at two ends of the auxiliary roller, and the first fixing frames are fixedly connected with the second fixing frames; the two ends of the upper roller and the secondary roller are provided with first sliding mechanisms, the first sliding mechanisms are used for enabling the upper roller and the secondary roller to move along the horizontal direction, and the first sliding mechanisms are connected with the first fixing frame and the second fixing frame; the second fixing frame comprises a second sliding mechanism and an elastic piece, the second sliding mechanism is used for supplying the auxiliary roller to move in the vertical direction, one end of the elastic piece is connected with the auxiliary roller, and the elastic piece is used for enabling the auxiliary roller to have the tendency of moving in the vertical direction in a reciprocating mode.

2. The cold pressing device of claim 1, wherein the second sliding mechanism comprises a connecting plate, a fixed block, two vertical rods and a rotating shaft connected with the connecting plate, the fixed block is parallel to the connecting plate, and the end parts of the fixed block and the connecting plate on the same side are flush.

3. The cold pressing device of claim 2, wherein the connecting plate and the fixing block are respectively and correspondingly provided with a first through groove and a second through groove at two ends thereof, the shapes of the first through groove and the second through groove are matched with the shapes of the vertical rods, and each vertical rod penetrates through the first through groove and the second through groove.

4. The cold pressing device of claim 2, wherein the diameter of the secondary roller is smaller than the diameters of the upper roller and the lower roller, two ends of the secondary roller are respectively and fixedly connected with the two fixing blocks, the connecting plate is provided with at least one through hole penetrating through the connecting plate in the thickness direction, and the connecting plate is connected with the fixing blocks through fixing rods.

5. The cold pressing device of claim 4, wherein the fixing rod penetrates through the through hole, a blocking portion is arranged at one end of the fixing rod far away from the fixing block, and the outer diameter of the blocking portion is larger than the diameter of the through hole.

6. The cold pressing device of claim 5, wherein the elastic member is located between the connecting plate and the fixing block, and two ends of the elastic member are fixedly connected with the connecting plate and the fixing plate, respectively; the length of the elastic piece in a natural state is equal to the distance between the connecting plate and the fixing plate when the lower surface of the blocking part is attached to the upper surface of the connecting plate.

7. The cold pressing device of claim 2, wherein the rotating shaft comprises a limiting portion, the limiting portion is located at one end of the rotating shaft close to the connecting plate, the limiting portion comprises a first portion and a second portion, and the outer diameter of the first portion is smaller than the outer diameter of the rotating shaft and the outer diameter of the second portion.

8. The cold pressing device of claim 7, wherein a boss and clamping portions located at two sides of the boss are arranged on the side surface of the connecting plate close to the rotating shaft, the two clamping portions are arranged oppositely, the clamping portions comprise side plates and extension blocks, the side plates are located between the extension blocks and the boss, and the extension blocks are flush with the side plates and one side of the boss far away from the rotating shaft; the end parts, close to each other, of the two extending blocks are provided with grooves, the grooves are arc-shaped, the length of each groove is equal to the height of the corresponding extending block, an accommodating cavity for accommodating the first part is formed between the two grooves, the outer diameters of the rotating shaft and the second part are larger than the diameter of the accommodating cavity, and the width of each extending block is larger than that of the side plate.

9. The cold pressing device according to claim 1, wherein third fixing frames are arranged at two ends of the secondary roller, the first sliding mechanism comprises a first bottom plate and a second bottom plate which are parallel to each other, the first bottom plate and the second bottom plate are perpendicular to the moving direction of the second sliding mechanism, the first bottom plate is fixedly connected with one sides of the first fixing frame and the second fixing frame far away from the upper roller, the second bottom plate is fixedly connected with the third fixing frames, a sliding groove penetrating through the thickness direction of the first bottom plate is formed in one side of the first bottom plate far away from the first fixing frame, and the first bottom plate is slidably connected with the second bottom plate.

10. The cold pressing device of claim 2, wherein said second holder comprises a mounting plate fixedly connected to a top end of said upright, said mounting plate being perpendicular to said upright; set up the mounting hole that runs through its thickness direction on the mounting panel, be provided with the internal thread on the mounting hole, the outer wall of pivot be provided with the external screw thread that the internal thread of mounting hole matches, the pivot runs through the mounting hole, the pivot with the mounting panel passes through external screw thread and internal thread rotate to be connected.