Scraper device and roller press

Abstract

The utility model belongs to the technical field of slurry scraping, and discloses a scraper device and a roller press. The scraper device comprises a fixing mechanism, a push-type broach mechanism and a scraper, the fixing mechanism comprises a mounting cavity and a guide through groove which are communicated with each other in the first direction, the push-type broach mechanism comprises a push-type broach block and a first elastic piece, the push-type broach block is movably arranged in the mounting cavity, and the scraper is detachably connected with the push-type broach block through the guide through groove. The first elastic piece is connected with the knife pushing block and the fixing mechanism so that one end of the scraper can stretch out of the guide through groove in an elastic reset mode. The scraper of the scraper device is simple in position debugging, high in replacement efficiency and long in service life, frequent replacement is not needed, and the use cost of the scraper is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry scraping, in particular to a scraper device and a roll press. Background Technique

[0002] In battery electrodes (especially solid-state batteries and semi-solid-state batteries), certain process requirements are needed for the areal density of the battery. Therefore, it is necessary to roll press the coated electrode to improve the areal density of the electrode.

[0003] Roll pressing is usually carried out by a roll press. In the roll press, it is necessary to pass the electrode through between two relatively arranged pressure rollers to realize the roll pressing of the pressure rollers on the electrode. In this process, the pressure rollers will inevitably stick with coating. If the coating is not removed in time, it will cause poor appearance of the electrode after roll pressing or damage to the electrode. In order to remove the coating on the pressure rollers to avoid the coating remaining on the pressure rollers from affecting the electrode, a scraper is usually provided on the side of the pressure rollers, and the scraper scrapes off the coating adhered to the pressure rollers by means of hard contact with the surface of the pressure rollers.

[0004] The existing scraper device generally includes an upper tool holder, a lower tool holder and a scraper. The scraper is placed between the upper tool holder and the lower tool holder. The upper tool holder and the lower tool holder are relatively fixed, and the scraper is clamped by the clamping force between the upper tool holder and the lower tool holder. This fixing method of the scraper has the following disadvantages:

[0005] 1. Difficult position debugging: When it is necessary to adjust the position of the scraper between the upper tool holder and the lower tool holder, not only the clamping force of the upper tool holder and the lower tool holder on the scraper needs to be released so that the scraper can move flexibly between the upper tool holder and the lower tool holder, but also the upper tool holder and the lower tool holder need to be completely disassembled to expose the scraper in the operator's field of vision so that the operator can accurately move and position the scraper; after the position of the scraper is adjusted in place, the upper tool holder and the lower tool holder also need to be fixed again. However, during the process of fixing the upper tool holder and the lower tool holder, the scraper may also be accidentally moved, resulting in inaccurate position of the scraper.

[0006] 2. Short service life of the scraper: The scraper is worn after a period of use, resulting in poor contact between the scraper and the pressure roller; or, after switching the production model of the electrode, it is necessary to adjust the scraping position of the scraper on the pressure roller. The existing scraper device cannot adjust the position of the resin scraper for the foregoing situations, so only a new scraper can be replaced, resulting in a short service life of the scraper and a high use cost of the scraper. Content of the Utility Model

[0007] The first object of the utility model is to provide a scraper device, and the scraper of the scraper device is not only simple in position debugging, high in replacement efficiency, but also long in service life.

[0008] To achieve this purpose, the utility model adopts the following technical solutions:

[0009] A scraper device comprises: a fixing mechanism, comprising a mounting cavity and a guide slot interconnected in a first direction; a pusher mechanism, comprising a pusher block and a first elastic member, wherein the pusher block is movably disposed in the mounting cavity; a scraper, detachably connected to the pusher block via the guide slot; the first elastic member connects the pusher block and the fixing mechanism so that one end of the scraper can be elastically reset and extended out of the guide slot.

[0010] Preferably, a plurality of the knife-pushing mechanisms are provided, and the plurality of the knife-pushing mechanisms are spaced apart in the second direction, and the plurality of the knife-pushing blocks are detachably connected to different positions of the scraper.

[0011] Preferably, the push blade block is provided with a plug-in groove at one end facing the scraper, and a partial structure of the scraper is plugged into the plug-in groove; or, the push blade block is provided with a first magnetic component at one end facing the scraper, and the scraper is provided with a second magnetic component at one end facing the push blade block, and the push blade block and the scraper are magnetically connected via the first magnetic component and the second magnetic component.

[0012] Preferably, the first elastic member is a coil spring.

[0013] Preferably, the mounting cavity and the guide groove are formed between the upper knife seat and the lower knife seat by means of an upper knife seat and a lower knife seat which are arranged relative to each other and detachably connected in a third direction; a plurality of first connecting holes are provided on the upper knife seat around the mounting cavity, and a plurality of second connecting holes are provided on the lower knife seat around the mounting cavity, the plurality of first connecting holes and the plurality of second connecting holes are connected one by one, and connecting members are passed through the correspondingly arranged first connecting holes and second connecting holes; or, one end of the upper knife seat in the first direction is rotatably connected to one end of the lower knife seat in the first direction, and an end of the upper knife seat in the second direction is detachably connected to an end of the lower knife seat in the second direction.

[0014] Preferably, the fixing mechanism comprises an upper knife seat and a lower knife seat which are arranged relative to each other in a third direction and are detachably connected; a first groove is provided on the upper knife seat, and a second groove is provided on the lower knife seat, and the first groove and the second groove are spliced to form the mounting cavity; and / or, a third groove is provided on the upper knife seat, and a fourth groove is provided on the lower knife seat, and the third groove and the fourth groove are spliced to form a first plug-in hole for plugging in the end of the first elastic member; and / or, the upper knife seat comprises a first end face facing the lower knife seat, and the lower knife seat comprises a second end face facing the upper knife seat, and the guide groove is formed between the first end face and the second end face.

[0015] Preferably, the blade device further includes a second elastic member extending along the first direction. One end of the second elastic member is connected to the fixing mechanism, and the second elastic member has a tendency to drive the fixing mechanism, the blade pushing block, the first elastic member, and the blade to move integrally along the first direction.

[0016] Preferably, a plurality of the second elastic members are provided, and the plurality of second elastic members are spaced apart in the circumferential direction of the fixing mechanism.

[0017] Preferably, the blade device further includes a fixing frame, and the other end of the second elastic member is fixed to the fixing frame.

[0018] The second object of the present invention is to provide a roller press. The blade device included in the roller press not only has simple position debugging, high replacement efficiency, long service life of the blade, but also has a good scraping effect on the pressure roller.

[0019] To achieve this purpose, the present invention adopts the following technical solutions:

[0020] A roller press includes a pressure roller and the above-mentioned blade device. The pressure roller is a member to be scraped, and at least part of the end of the blade extending out of the fixing mechanism can be elastically abutted against the rolling surface of the pressure roller. Wherein, the first elastic member has a tendency to push the blade pushing block and the blade to move outward along the first direction, so that one end of the blade can extend out of the fixing mechanism and be elastically abutted against the member to be scraped.

[0021] The beneficial effects of the present invention:

[0022] The blade device provided by the present invention includes a fixing mechanism, a blade pushing mechanism and a blade. The fixing mechanism includes an installation cavity and a guiding through groove communicating with each other in the first direction. The blade pushing mechanism includes a blade pushing block and a first elastic member. The blade pushing block is movably placed in the installation cavity. The blade is detachably connected to the blade pushing block through the guiding through groove. The first elastic member connects the blade pushing block and the fixing mechanism to elastically reset one end of the blade to extend out of the guiding through groove. The blade of this blade device is detachably connected to the blade pushing block through the guiding through groove, so that the replacement of the blade can be realized without disassembling the fixing mechanism, improving the replacement efficiency of the blade. Under the action of the first elastic member, the blade can move integrally, making the position debugging of the blade simple. Moreover, the blade pushing block can also push the blade to undergo local deformation, solving the problem that the contact between the blade and the member to be scraped is poor due to wear and loss at some positions of the blade, so that all parts of the blade are closely attached to the member to be scraped, thereby prolonging the service life of the blade and avoiding frequent replacement. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the pressure roller, the blade device and the pole piece provided by the present invention;

[0024] Figure 2 It is a schematic diagram of the pressure roller and the scraper device provided by the present utility model in another direction;

[0025] Figure 3 It is a schematic diagram of the internal structure of the scraper device provided by the present utility model;

[0026] Figure 4 It is a schematic diagram of the upper tool holder of the scraper device provided by the present utility model;

[0027] Figure 5 It is a schematic diagram of the lower tool holder, the blade pushing mechanism and the scraper of the scraper device provided by the present utility model.

[0028] In the figure:

[0029] 10. Scraper device; 20. Pressure roller; 30. Electrode tab;

[0030] 100. Fixing mechanism; 101. Upper tool holder; 1011. First connection hole; 102. Lower tool holder; 1021. Second connection hole; 103. Installation cavity; 1031. First groove; 1032. Second groove; 104. Guide through groove; 105. First insertion hole; 1051. Third groove; 1052. Fourth groove;

[0031] 200. Blade pushing mechanism; 201. Blade pushing block; 2011. Insertion slot; 202. First elastic member;

[0032] 300. Scraper; 400. Second elastic member; 500. Fixing bracket. Detailed implementation manners

[0033] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the sake of description, only parts related to the present utility model rather than all structures are shown in the drawings.

[0034] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected" and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0036] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] As Figure 1 and Figure 2 shown, the present utility model discloses a scraper device 10, which can perform scraping operations to clean the surface of the workpiece to be scraped. The scraper device 10 can be used for the reprocessing of a coating member (typically, for example, a pole piece), and the pressing roller 20 serves as the workpiece to be scraped. The scraper device 10 can scrape the coating adhered to the rolling surface of the pressing roller 20; of course, in addition to the rolling press, the scraper device 10 can also be used in other devices with scraping requirements, which will not be listed one by one here.

[0038] It should be understood that the coating here includes the materials on the surface of the battery pole piece formed by wet coating and dry coating, and also includes the materials of the battery pole piece reprocessed through the solid electrolyte introduction process.

[0039] Specifically, as Figures 3 to 5As shown, the blade device 10 includes a fixing mechanism 100, a blade pushing mechanism 200, and a blade 300. An installation cavity 103 and a guiding through groove 104 that communicate with each other in the first direction are provided on the fixing mechanism 100. The blade pushing mechanism 200 includes a blade pushing block 201 and a first elastic member 202. The blade pushing block 201 is movably disposed in the installation cavity 103. The first elastic member 202 extends along the first direction. One end of the first elastic member 202 is fixed to the blade pushing block 201, and the other end of the first elastic member 202 is fixed to the fixing mechanism 100. Driven by the first elastic member 202, the blade pushing block 201 can move in the installation cavity 103 along the first direction. The blade 300 is detachably connected to the blade pushing block 201 through the guiding through groove 104. The first elastic member 202 connects the blade pushing block 201 and the fixing mechanism 100 to elastically reset one end of the blade 300 to extend out of the guiding through groove 104. Of course, under the action of an external force, the blade 300 and the blade pushing block 201 can also move inward along the first direction against the elastic force of the first elastic member 202. Optionally, the blade 300 is a blade made of resin material.

[0040] In one embodiment, the first direction is as Figure 1 shown. The first direction is the front-back direction of the blade device 10. Of course, in other embodiments, the first direction can also be adjusted to other directions according to requirements. It should be understood that although the illustrated first direction is the same as the transmission direction of the pole piece, this is not necessary. The first direction can be other directions perpendicular to the surface of the pressing roller 20.

[0041] Compared with the blade clamped and fixed between the upper tool holder and the lower tool holder in the prior art, in the present utility model, the blade 300 of the blade device 10 is detachably connected to the blade pushing block 201 by passing through the guiding through groove 104. When replacing the blade 300, only need to insert and pull out the blade 300 along the guiding through groove 104 to realize the replacement of the blade 300, without having to disassemble the fixing mechanism 100, which shortens the time required for replacing the blade 300 and improves the replacement efficiency of the blade 300. Under the action of the first elastic member 202, the blade 300 can move as a whole, making the position adjustment of the blade 300 simple. Moreover, the blade pushing block 201 can also push the blade 300 to undergo local deformation, which not only solves the problem that the blade 300 is in poor contact with the part to be scraped due to wear and loss at some positions, but also makes each part of the blade 300 closely fit with the part to be scraped, thereby prolonging the service life of the blade 300, reducing the replacement frequency, and reducing the use cost of the blade 300.

[0042] Continue to refer to Figures 3 to 5As shown, in some embodiments, the fixing mechanism 100 includes an upper tool holder 101 and a lower tool holder 102. The upper tool holder 101 and the lower tool holder 102 are oppositely arranged in the third direction and are detachably connected. An installation cavity 103 and a guiding through groove 104 that communicate with each other are formed between the upper tool holder 101 and the lower tool holder 102. Optionally, both the upper tool holder 101 and the lower tool holder 102 are block-shaped structures. In order to form the installation cavity 103 between the upper tool holder 101 and the lower tool holder 102, a first groove 1031 is provided on the upper tool holder 101, and a second groove 1032 is provided on the lower tool holder 102. The first groove 1031 and the second groove 1032 are arranged opposite to each other, and the first groove 1031 and the second groove 1032 are spliced to form the installation cavity 103. Optionally, the installation cavity 103 is cube-shaped. In one embodiment, as shown in Figure 1 in, the third direction is the up-and-down direction of the scraper device 10. Of course, in other embodiments, the third direction can also be adjusted to other directions according to requirements.

[0043] Of course, in other embodiments, it may also be that only the first groove 1031 is provided on the upper tool holder 101, the end face of the lower tool holder 102 facing the upper tool holder 101 is the first plane, and the first groove 1031 and a part of the first plane jointly form the installation cavity 103. Or, only the second groove 1032 is formed on the lower tool holder 102, the end face of the upper tool holder 101 facing the lower tool holder 102 is the second plane, and the second groove 1032 and a part of the second plane form the installation cavity 103.

[0044] The upper tool holder 101 further includes a first end face facing the lower tool holder 102, and the first end face is arranged on one side of the first groove 1031 in the first direction. The lower tool holder 102 further includes a second end face facing the upper tool holder 101, and the second end face is arranged on one side of the second groove 1032 in the first direction. The first end face and the second end face are spaced apart in the third direction, and a guiding through groove 104 is formed between the first end face and the second end face.

[0045] The upper tool holder 101 further includes a fifth end face facing the lower tool holder 102, and the fifth end face is arranged on the other side of the first groove 1031 in the first direction. The lower tool holder 102 further includes a sixth end face facing the upper tool holder 101, and the sixth end face is arranged on the other side of the second groove 1032 in the first direction. The fifth end face and the sixth end face are in mutual contact in the third direction.

[0046] In one embodiment, since the first end face is higher than the fifth end face and the second end face is lower than the sixth end face in the third direction, when the fifth end face and the sixth end face are in contact, a guide groove 104 can be formed between the first end face and the second end face. Of course, it is also possible that only the first end face is higher than the fifth end face and the second end face is flush with the sixth end face, so that when the fifth end face and the sixth end face are in contact, a guide groove 104 can be formed between the first end face and the second end face; or, only the second end face is lower than the sixth end face and the first end face is flush with the fifth end face, so that when the fifth end face and the sixth end face are in contact, a guide groove 104 can be formed between the first end face and the second end face.

[0047] In order to achieve a detachable connection between the upper tool seat 101 and the lower tool seat 102, in some embodiments, a plurality of first connecting holes 1011 are provided on the upper tool seat 101 around the installation cavity 103, and a plurality of second connecting holes 1021 are provided on the lower tool seat 102 around the installation cavity 103. The plurality of first connecting holes 1011 and the plurality of second connecting holes 1021 are connected one by one, and connecting parts are passed through the corresponding first connecting holes 1011 and the second connecting holes 1021.

[0048] Optionally, at least one of the first connection hole 1011 and the second connection hole 1021 is a threaded hole, and the connecting member is a screw. Alternatively, the first connection hole 1011 and the second connection hole 1021 are both plain holes, and the connecting member can be a combination of a bolt and a nut, or a latch.

[0049] Optionally, five first connection holes 1011 and five second connection holes 1021 are provided, and the five first connection holes 1011 are as follows: Figure 4 As shown in the distribution, the five second connection holes 1021 are as follows Figure 5 As shown in the distribution, the connection strength between the upper knife seat 101 and the lower knife seat 102 can be improved. Of course, in other embodiments, the number of the first connection holes 1011 and the second connection holes 1021 is selected according to needs, and the arrangement of the first connection holes 1011 and the second connection holes 1021 can also be adjusted according to needs.

[0050] In some parallel embodiments, one end of the upper knife seat 101 in the first direction (the end away from the guide slot 104) and one end of the lower knife seat 102 in the first direction (the end away from the guide slot 104) are rotatably connected, and the end of the upper knife seat 101 in the second direction and the end of the lower knife seat 102 in the second direction are detachably connected. The detachable connection method can adopt the aforementioned connection hole and connecting member matching method, and can also adopt a snap connection, a magnetic connection, etc. Such a setting can reduce the number of connecting members used, making the fixing mechanism 100 easier to disassemble and assemble. Figure 5 As shown, the second direction is the left-right direction of the scraper device 10 .

[0051] Optionally, the first elastic member 202 is a helical spring. Of course, in other embodiments, the first elastic member 202 can also be other structures such as a shrapnel or a spring rod, and is not limited to the helical spring.

[0052] To fix the first elastic member 202 to the fixing mechanism 100, in one embodiment, a third groove 1051 is provided on the upper knife holder 101, and a fourth groove 1052 is provided on the lower knife holder 102. The third groove 1051 and the fourth groove 1052 are spliced to form a first insertion hole 105 for inserting the end of the first elastic member 202. Of course, in other embodiments, the first insertion hole 105 can also be directly provided on the upper knife holder 101 or the lower knife holder 102, and one end of the first elastic member 202 is inserted into the first insertion hole 105. Alternatively, the first insertion post can be used to replace the first insertion hole 105, and one end of the helical spring is inserted onto the first insertion post, so as to fix one end of the helical spring.

[0053] To fix the first elastic member 202 to the push knife block 201, a second insertion hole can be provided on the side of the push knife block 201 facing the first elastic member 202, and the other end of the first elastic member 202 is inserted into the second insertion hole. Of course, the second insertion post can also be used to replace the second insertion hole, and the other end of the helical spring is inserted onto the second insertion post, so as to fix the other end of the helical spring. In addition, in addition to using the insertion fit, one end of the first elastic member 202 can also be directly bonded or welded to the fixing mechanism 100, and the other end of the first elastic member 202 can be bonded or welded to the push knife block 201.

[0054] To improve the adaptability of the scraper 300 to the object to be scraped, continue to refer to Figure 5 As shown, a plurality of push knife mechanisms 200 are provided, and the plurality of push knife mechanisms 200 are spaced apart in the second direction. The plurality of push knife blocks 201 are respectively detachably connected to different positions of the scraper 300. It should be noted that the second direction is also the length direction of the scraper 300 and the width direction of the pole piece 30.

[0055] In one embodiment, continue to refer to Figure 5 As shown, eight push knife mechanisms 200 are provided and are equally spaced in the second direction. The length of each push knife block 201 in the second direction is less than the length of the scraper 300 in the second direction. The eight push knife blocks 201 jointly fix the scraper 300. Of course, in other embodiments, the number of the push knife mechanisms 200 is flexibly set according to the length of the scraper 300 in the second direction.

[0056] To achieve the quick disassembly and assembly of the push knife block 201 and the scraper 300, continue to refer to Figure 3As shown in the figure, a plug-in slot 2011 is provided at one end of the push knife block 201 facing the scraping knife 300, and a part of the structure of the scraping knife 300 is inserted into the plug-in slot 2011. If a new scraping knife 300 needs to be replaced, apply force outward in the first direction to pull out the old scraping knife 300 from the plug-in slot 2011, and then apply force inward in the first direction to insert the new scraping knife 300 into the plug-in slot 2011 of the push knife block 201 along the guiding chute.

[0057] In some parallel embodiments, a first magnetic attraction member is provided at one end of the push knife block 201 facing the scraping knife 300, and a second magnetic attraction member is provided at one end of the scraping knife 300 facing the push knife block 201. The push knife block 201 and the scraping knife 300 are magnetically connected through the first magnetic attraction member and the second magnetic attraction member. Optionally, both the first magnetic attraction member and the second magnetic attraction member are provided with a plurality of them. At least one first magnetic attraction member is provided on each push knife block 201, and the plurality of second magnetic attraction members are spaced apart in the second direction at the end of the scraping knife 300.

[0058] Continue to refer to Figure 2 As shown in the figure, the scraping knife device 10 further includes a second elastic member 400. The second elastic member 400 extends along the first direction. One end of the second elastic member 400 is connected to the fixing mechanism 100. The fixing mechanism 100, the push knife block 201, the first elastic member 202 and the scraping knife 300 together form a scraping knife seat. The second elastic member 400 has a tendency to drive the whole scraping knife seat to move along the first direction. Optionally, the second elastic member 400 is arranged on the outer side wall of the fixing mechanism 100. Optionally, the second elastic member 400 is a spring rod, a spiral spring or a spring piece.

[0059] In order to improve the stability of the whole scraping knife seat moving along the first direction, a plurality of second elastic members 400 are provided, and the plurality of second elastic members 400 are spaced apart in the circumferential direction of the fixing mechanism 100. Optionally, two second elastic members 400 are provided and are arranged on the lower knife seat 102 and on both sides of the lower knife seat 102 in the second direction respectively; of course, the second elastic member 400 can also be provided with three, four or more.

[0060] Continue to refer to Figure 2 As shown in the figure, the scraping knife device 10 further includes a fixing frame 500, and the other end of the second elastic member 400 is fixed on the fixing frame 500. The whole scraping knife device 10 can be fixed on an external structure by using the fixing frame 500, such as the main machine of a roll press. The specific structure of the fixing frame 500 is not limited here and can be flexibly adjusted according to requirements.

[0061] The present utility model also discloses a roll press, as shown in Figure 1 and Figure 2As shown in the figure, the roll press includes a pressure roller 20 and the above-mentioned scraper device 10. The pressure rollers 20 are generally arranged in pairs, and the two pressure rollers 20 are spaced apart in the third direction. The pole piece 30 is roll-pressed by relative rotation, and the pole piece 30 moves along the first direction through the two pressure rollers 20. In this embodiment, the pressure roller 20 is the aforementioned member to be scraped, and the scraper device 10 is arranged on one side of the pressure roller 20, and at least part of the end of the scraper 300 extending out of the fixing mechanism 100 can be elastically abutted against the rolling surface of the pressure roller 20. The first elastic member 202 has a tendency to push the push blade block 201 and the scraper 300 to move outward in the first direction, so that the other end of the scraper 300 can extend out of the fixing mechanism 100 and elastically abut against the member to be scraped.

[0062] After the pressure roller 20 rotates and squeezes the pole piece 30, the coating adheres to the position in contact with the pole piece 30. As the pressure roller 20 continues to rotate, the coating rotates to the scraper device 10 and passes through the end of the fixing mechanism 100 where the scraper 300 extends. During this process, the scraper 300 scrapes off the coating adhered to the pressure roller 20, realizing the cleaning of the pressure roller 20.

[0063] The roll press provided by the present invention has the following advantages: 1. The roll press effectively solves the problem of poor contact between some positions of the scraper 300 and the pressure roller 20, significantly improves the utilization rate of the scraper 300, and makes the scraper 300 more compatible; 2. The roll press effectively solves the problem of inconvenient replacement of the scraper 300, makes the time required for replacing the scraper 300 short, and improves the replacement efficiency of the scraper 300; 3. The first elastic member 202 is used to push the push blade block 201, so that each part of the scraper 300 always closely adheres to the pressure roller 20, achieving the purpose of being compatible with pressure rollers 20 of various sizes and improving the scraping effect on the pressure roller 20; 4. The elastic force of the second elastic member 400 is used to push the fixing mechanism 100, so that the entire scraper seat formed by the fixing mechanism 100, the push blade block 201, the first elastic member 202 and the scraper 300 is always in a pressure state and thus closely adheres to the pressure roller 20.

[0064] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A scraping device, characterized in that, include: A fixing mechanism (100) comprising a mounting cavity (103) and a guide groove (104) which are interconnected in a first direction; A knife-pushing mechanism (200) comprises a knife-pushing block (201) and a first elastic member (202), wherein the knife-pushing block (201) is movably disposed in the mounting cavity (103); A scraper (300) is detachably connected to the pusher block (201) through the guide slot (104); The first elastic member (202) connects the blade pushing block (201) and the fixing mechanism (100) so as to elastically reposition one end of the scraper (300) to extend out of the guide slot (104).

2. The doctor blade device according to claim 1, wherein The knife-pushing mechanisms (200) are provided in plurality, and the plurality of knife-pushing mechanisms (200) are arranged at intervals in the second direction, and the plurality of knife-pushing blocks (201) are respectively detachably connected to different positions of the scraper (300).

3. The doctor blade device according to claim 1, characterized in that An inserting groove (2011) is provided at one end of the pusher block (201) facing the scraper (300), and a part of the structure of the scraper (300) is inserted into the inserting groove (2011); Alternatively, a first magnetic component is provided at one end of the push blade block (201) facing the scraper (300), and a second magnetic component is provided at one end of the scraper (300) facing the push blade block (201); the push blade block (201) and the scraper (300) are magnetically connected via the first magnetic component and the second magnetic component.

4. The doctor blade device according to claim 1, characterized in that, The first elastic member (202) is a coil spring.

5. The doctor blade device according to claim 1, wherein The installation cavity (103) and the guide groove (104) are formed between the upper knife seat (101) and the lower knife seat (102) which are arranged opposite to each other in a third direction and are detachably connected; The upper knife seat (101) is provided with a plurality of first connection holes (1011) surrounding the installation cavity (103), and the lower knife seat (102) is provided with a plurality of second connection holes (1021) surrounding the installation cavity (103); the plurality of first connection holes (1011) and the plurality of second connection holes (1021) are connected one by one, and connecting pieces are inserted into the correspondingly arranged first connection holes (1011) and second connection holes (1021); Alternatively, one end of the upper knife seat (101) in the first direction is rotatably connected to one end of the lower knife seat (102) in the first direction, and the end of the upper knife seat (101) in the second direction is detachably connected to the end of the lower knife seat (102) in the second direction.

6. The doctor blade device according to claim 1, characterized in that, The fixing mechanism (100) comprises an upper knife seat (101) and a lower knife seat (102) which are arranged opposite to each other in a third direction and are detachably connected; The upper knife seat (101) is provided with a first groove (1031), and the lower knife seat (102) is provided with a second groove (1032), and the first groove (1031) and the second groove (1032) are spliced to form the installation cavity (103); And / or, a third groove (1051) is provided on the upper tool holder (101), and a fourth groove (1052) is provided on the lower tool holder (102). The third groove (1051) and the fourth groove (1052) are spliced to form a first insertion hole (105) for inserting the end of the first elastic member (202). And / or, the upper tool holder (101) includes a first end face facing the lower tool holder (102), and the lower tool holder (102) includes a second end face facing the upper tool holder (101). The guiding through groove (104) is formed between the first end face and the second end face.

7. The doctor blade device according to claim 1, characterized in that The scraping device further includes a second elastic member (400). The second elastic member (400) extends along the first direction. One end of the second elastic member (400) is connected to the fixing mechanism (100), and the second elastic member (400) has a tendency to drive the fixing mechanism (100), the pushing tool block (201), the first elastic member (202), and the scraper (300) to move integrally along the first direction.

8. The doctor blade device according to claim 7, wherein A plurality of the second elastic members (400) are provided, and the plurality of second elastic members (400) are spaced apart in the circumferential direction of the fixing mechanism (100).

9. The doctor blade device according to claim 7, characterized in that, The scraping device further includes a fixing frame (500), and the other end of the second elastic member (400) is fixed to the fixing frame (500).

10. A roller press, characterized in that, It includes a pressure roller (20) and the scraping device according to any one of claims 1-9, and the pressure roller (20) is a member to be scraped. Wherein, the first elastic member (202) has a tendency to push the pushing tool block (201) and the scraper (300) to move outward along the first direction, so that one end of the scraper (300) can extend out of the fixing mechanism (100) and elastically abut against the member to be scraped.

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