Waste removing roller press

Abstract

The utility model discloses a waste removing roller press, a rack is provided with a pair of compression rollers which are distributed up and down, a waste removing roller is arranged on one side of the compression rollers which is deviated from an unwinding mechanism, the waste removing roller is in transmission connection with a corresponding dust removal motor and rotates reversely relative to the compression rollers, the waste removing roller and the compression rollers abut against each other through the peripheral wall, and the waste removing roller is suitable for sticking or sweeping particles on the surfaces of the compression rollers. Compared with the prior art, the compression roller is continuously cleaned during working, so that the rolling quality of the pole piece is effectively ensured; the compression roller is cleaned in a sticking or sweeping mode, the compression roller is cleaned thoroughly, and the compression roller is not prone to being damaged due to cleaning.

Description

TECHNICAL FIELD

[0001] The utility model relates to pole piece roll press, especially a reject roll press. BACKGROUND

[0002] The pole piece roll press is suitable for the pole piece after coating and drying, uses the metal hard pressure roller to carry out roll press, makes the pole piece coating density and thickness consistency to be promoted, strengthens the adhesion of active substance and current collector foil, also makes the pole piece / cell volume further reduce, improves cell ability density, reduces the porosity between the active substance, conductive agent, binder in the pole piece, reduces the battery internal resistance.

[0003] When the pole piece is coated, the surface may derive particles. In the roll press process, the pressure roller may be attached with broken or unbroken particles, which causes the subsequent section of the pole piece to be damaged in the roll press.

[0004] In the prior art, a scraper is mainly used to scrape the pressure roller. This kind of way is difficult to remove small particles, and / or the scraper and the particles together cause abrasion on the surface of the pressure roller. TECHNICAL SOLUTION

[0005] The utility model aims at solving one of the above-mentioned technical problems, and provides a reject roll press. In the reverse rotation of the reject roll relative to the pressure roller, the particles and impurities are removed, the impurities are removed more cleanly, and the pressure roller is not easily damaged.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0007] A reject roll press comprises a rack, a reject roll, a blowing pipe, a dust collecting hopper and a shutter. The rack is provided with a pair of pressure rollers distributed upward and downward. The reject roll is arranged on the side of the pressure roller away from the unwinding mechanism. The reject roll is drivingly connected to a corresponding dust removing motor and rotates reversely relative to the pressure roller. The reject roll and the pressure roller abut each other with a peripheral wall. The reject roll is suitable for sticking or sweeping the surface particles of the pressure roller. The reject roll is a cloth roll, a felt roll, a cotton roll or a brush roll. The two ends of the shutter are respectively spliced with the blowing pipe and the dust collecting hopper. The reject roll and the dust collecting hopper are both located on one side of the shutter, so that the one side of the shutter is limited by the reject roll and the dust collecting hopper to form an airflow channel. The blowing pipe is provided with a blowing gap. The airflow of the blowing gap is suitable for being sprayed through the airflow channel and flowing into the dust collecting hopper, so as to spray and suction the particles on the reject roll by negative pressure.

[0008] Compared with the prior art, the utility model has the beneficial effects that the pressure roller is continuously cleaned during work, the roll press quality of the pole piece is effectively guaranteed, the pressure roller is cleaned by sticking or sweeping, the pressure roller is cleaned more cleanly, and the pressure roller is not easily damaged by cleaning.

[0009] As the improvement of the above technical scheme, the blowing pipe, the compression roller, the reject roller, the dust collecting hopper and the shutter jointly define an isolated cavity, the isolated cavity is divided into a front cavity and the airflow channel, a negative pressure air inlet slit communicating with the front cavity is arranged between the blowing pipe and the compression roller, and air outlet of the air inlet slit is adapted to spray through the front cavity and the airflow channel in sequence, so that the particles in the block corresponding to the front cavity of the compression roller fall or loosen based on the negative pressure.

[0010] As the improvement of the above technical scheme, the front cavity is provided with a flow guide plate, the flow guide plate is adapted to guide the airflow of the negative pressure air inlet slit to the side of the shutter, and the airflow of the negative pressure air inlet slit is blocked from the reject roller.

[0011] As the improvement of the above technical scheme, the static pressure dust falling box is further provided with an air inlet and an air outlet on both sides of the upper end, the air inlet is adapted to be connected to the dust collecting hopper, and the air outlet is encapsulated with a dust filter plate.

[0012] As the improvement of the above technical scheme, the static pressure dust falling box is provided with an air-permeable partition plate, so that the bore cavity of the static pressure dust falling box is divided into a static pressure dust falling chamber and a sub-chamber, and the air inlet and the air outlet respectively communicate with the static pressure dust falling chamber and the sub-chamber.

[0013] As the improvement of the above technical scheme, the air-permeable partition plate is arranged in an inclined manner.

[0014] As the improvement of the above technical scheme, the static pressure dust falling box is further provided with a slide seat, the slide seat is slidingly connected to a guide rail on the rack and is connected with a sliding cylinder, the slide seat is provided with the reject roller, the blowing pipe, the dust collecting hopper and the shutter, and the sliding cylinder is adapted to drive the reject roller to abut or move away from the compression roller. BRIEF DESCRIPTION OF DRAWINGS

[0015] The specific embodiments of the utility model will be further described in detail below in combination with the drawings, in which:

[0016] Figure 1 It is a structural schematic view of the reject roller compression machine of the utility model embodiment;

[0017] Figure 2 It is a structural schematic view of the reject roller compression machine of the utility model embodiment; Figure 1 It is a front view angle sectional view of the hidden part structure of the reject roller compression machine;

[0018] Figure 3 It is a structural schematic view of the reject roller compression machine of the utility model embodiment; Figure 2 It is a structural schematic view of the reject roller compression machine of the utility model embodiment;

[0019] Figure 4 It is a structural schematic view of the reject roller compression machine of the utility model embodiment; Figure 1 It is a structural schematic view of the reject roller compression machine of the utility model embodiment;

[0020] Figure 5 For Figure 4 A sectional view of the structure is shown.

[0021] The drawings are only one of the specific embodiments of the present application, and the form and structure of the specific embodiment should not limit the widening of other embodiments.

[0022] Frame 100, compression roller 110, winding mechanism 120;

[0023] Rejection roller 210, dust removal motor 220, air blowing pipe 230, air blowing slot 231, dust collection hopper 240, shutter 250, isolation chamber 260, pre-chamber 261, air flow channel 262, flow guide plate 263, negative pressure air inlet slot 270, sliding seat 280;

[0024] Static pressure dust falling box 300, static pressure dust falling chamber 310, air inlet 311, auxiliary chamber 320, air outlet 321, air permeable partition 330;

[0025] Pole piece 400. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] With reference to Figures 1 to 3 The present application provides a rejection roller press, which comprises a frame 100 and a rejection roller 210. The frame 100 is provided with a pair of compression rollers 110 distributed vertically. The rejection roller 210 is arranged on the side of the compression roller 110 away from the unwinding mechanism. The rejection roller 210 is drivingly connected to the corresponding dust removal motor 220 and rotates reversely relative to the compression roller 110. The rejection roller 210 and the compression roller 110 abut each other with a peripheral wall. The rejection roller 210 is suitable for sticking or sweeping the surface particles of the compression roller 110.

[0028] It can be understood that the two compression rollers 110 are respectively drivingly connected to corresponding motors or drivingly connected to the same motor, i.e. a pneumatic motor, a hydraulic motor or an electric motor.

[0029] With reference to Figures 1 to 3 The operation process of the present application is as follows: the end of the pole piece 400 pulled out from the unwinding mechanism passes through the gap between the two compression rollers 110 and is wound on the winding mechanism 120.

[0030] The working gap between the two compression rollers 110 is adjusted, and the pressure of the compression roller 110 is adjusted.

[0031] The starting unwinding mechanism, the winding mechanism 120, the compression roller 110 and the waste stripping roller 210 are started, and when the pole piece 400 passes through the gap between the two compression rollers 110, the pole piece 400 is extruded by the two compression rollers 110 to be compacted, the adhesion of the coating is improved, the volume of the pole piece 400 is reduced, and the energy density of the pole piece 400 is improved;

[0032] The original residual particles on the surface of the pole piece 400 are crushed by the roller, and the crushed or uncrushed particles may be attached to the compression roller 110;

[0033] The waste stripping roller 210 rotates in the opposite direction relative to the compression roller 110, and the waste stripping roller 210 abuts against the peripheral wall of the compression roller 110, so that the waste stripping roller 210 sweeps or sticks the particles on the compression roller 110, and the compression roller 110 rolls the pole piece 400 with a relatively clean peripheral wall.

[0034] Compared with the prior art, the beneficial effects of the present application include that the compression roller 110 is continuously cleaned during operation, effectively ensuring the rolling quality of the pole piece 400; the compression roller 110 is cleaned by sticking or sweeping, the compression roller 110 is relatively clean, and the compression roller 110 is not easily damaged by cleaning.

[0035] In some embodiments of the present application, the adhesive roll and the glue winding roll are further included, the adhesive roll is suitable for winding the pulled-out adhesive tape through the waste stripping roller 210, and then winding the adhesive tape by the glue winding roll, and the waste stripping roller 210 is suitable for driving the adhesive surface of the adhesive tape to contact the peripheral wall of the compression roller 110. The waste stripping roller 210 continuously contacts the peripheral wall of the compression roller 110 with a new adhesive surface, effectively cleaning the compression roller 110 and avoiding secondary pollution of the compression roller 110.

[0036] The waste stripping roller 210 can be a cloth roller, a felt roller, a cotton roller or a brush roller, and the waste stripping roller 210 cleans the compression roller 110 in a sweeping manner.

[0037] Referring to Figures 1 to 5 In some embodiments of the present application, the air blowing pipe 230, the dust collecting hopper 240 and the shutter 250 are further included, the two ends of the shutter 250 are respectively spliced with the air blowing pipe 230 and the dust collecting hopper 240, the waste stripping roller 210 and the dust collecting hopper 240 are both located on one side of the shutter 250, the one side of the shutter 250 is defined by the waste stripping roller 210 and the dust collecting hopper 240 to form an air flow channel 262, the waste stripping roller 210 is suitable for sweeping the surface particles of the compression roller 110, the air blowing pipe 230 is provided with an air blowing gap 231, and the air flow of the air blowing gap 231 is suitable for being sprayed through the air flow channel 262 and flowing into the dust collecting hopper 240 to spray and negatively suck the particles on the waste stripping roller 210. The cleaning is achieved by air blowing and negative pressure dust collection, the cleaning of the waste stripping roller 210 is relatively low in cost, and the waste stripping roller 210 can be kept clean at all times.

[0038] Referring to Figure 2 , Figure 5In some embodiments of the utility model, blow pipe 230, pressure roller 110, reject roller 210, dust collecting hopper 240 and shutter 250 jointly define isolation chamber 260, isolation chamber 260 is divided into front chamber 261 and airflow channel 262, negative pressure air inlet slit 270 that communicates front chamber 261 is arranged between blow pipe 230 and pressure roller 110, the air outlet of blow slit 231 is adapted to spray through front chamber 261 and airflow channel 262 in turn, and the particles of the block corresponding to front chamber 261 of pressure roller 110 fall or loosen based on negative pressure. Therefore, under the action of the same blow pipe 230 of the utility model, the particles on the surface of pressure roller 110 are preliminarily cleaned or loosened by negative pressure, and then pressure roller 110 is cleaned again by reject roller 210.

[0039] With reference to Figure 2 , Figure 5 In some embodiments of the utility model, front chamber 261 is provided with flow guide plate 263, flow guide plate 263 is adapted to guide the airflow of negative pressure air inlet slit 270 to the side of shutter 250, and block the airflow of negative pressure air inlet slit 270 to reject roller 210, which further improves the effect of preliminary cleaning of pressure roller 110 and better avoids the secondary pollution of reject roller 210 caused by the preliminary cleaning of pressure roller 110.

[0040] With reference to Figure 1 In some embodiments of the utility model, it further includes static pressure dust falling box 300, air inlet 311 and air outlet 321 are arranged on both sides of the upper end of static pressure dust falling box 300, air inlet 311 is adapted to dock dust collecting hopper 240, and air outlet 321 is packaged with a dust filter plate. It can be understood that static pressure dust falling box 300 is relatively bulky; in unit time, the gas sprayed by the air outlet slit is placed in static pressure dust falling box 300, and a larger dispersion weakening is obtained, so that the airflow is weakened to zero speed and atmospheric pressure (i.e. static pressure), the particles and dust recovered by dust collecting hopper 240 can be settled, and the dust can also be prevented from being scattered in the workshop.

[0041] With reference to Figure 1 In some embodiments of the utility model, static pressure dust falling box 300 is provided with air-permeable partition plate 330, so that the bore cavity of static pressure dust falling box 300 is divided into static pressure dust falling chamber 310 and auxiliary chamber 320, and air inlet 311 and air outlet 321 respectively communicate static pressure dust falling chamber 310 and auxiliary chamber 320. It can be understood that static pressure dust falling chamber 310 is adapted for static pressure dust falling, and the volume is still relatively large compared with the air outlet slit unit time air outlet amount; static pressure dust falling chamber 310 is adapted as the main body of static pressure dust falling box 300. In the utility model, the exhaust of static pressure dust falling box 300 is further filtered, which greatly guarantees the cleanness of the workshop.

[0042] In some embodiments of the utility model, air-permeable partition plate 330 is inclined, and air-permeable partition plate 330 is not easy to accumulate dust.

[0043] With reference toFigure 1 、 Figure 4 、 Figure 5 In some embodiments of the utility model, still include slide seat 280, slide seat 280 is connected on the guide rail of rack 100 and is connected with slip cylinder, be provided with reject roll 210, blow pipe 230, dust collecting hopper 240 and shutter 250 on slide seat 280, and slip cylinder can be air cylinder, hydraulic cylinder and electric cylinder, slip cylinder is suitable for driving reject roll 210 to abut or away from compression roller 110.

[0044] The above embodiments are only used to illustrate the technical scheme of the utility model and not to limit it, any modification or equivalent replacement without departing from the spirit and scope of the utility model should be covered in the scope of the technical scheme of the utility model.

Claims

1. A reject roll press characterized by, It comprises: a rack provided with a pair of press rollers distributed in up and down; a reject roller provided on the side of the press roller away from the unwinding mechanism, the reject roller being drivingly connected to a corresponding dust removal motor, the reject roller and the press roller abutting with a peripheral wall, the reject roller being adapted to stick or sweep the surface particles of the press roller, the reject roller being a cloth roller, a felt roller, a cotton roller or a brush roller; a blowing pipe, a dust collecting hopper and a baffle, both ends of the baffle being spliced with the blowing pipe and the dust collecting hopper respectively, the reject roller and the dust collecting hopper being located on one side of the baffle, so that the one side of the baffle is defined by the reject roller and the dust collecting hopper as an airflow channel, the blowing pipe being provided with a blowing slot, the airflow of the blowing slot being adapted to flow into the dust collecting hopper through the airflow channel to blow and negatively pressure suck the particles on the reject roller.

2. The reject roll press of claim 1, wherein, The blowing pipe, the press roller, the reject roller, the dust collecting hopper and the baffle jointly define an isolation chamber, the isolation chamber being divided into a pre-chamber and the airflow channel, a negative pressure inlet slot being provided between the blowing pipe and the press roller and communicating with the pre-chamber, the airflow of the blowing slot being adapted to sequentially spray through the pre-chamber and the airflow channel, so that the particles of the block corresponding to the pre-chamber of the press roller fall or loosen based on negative pressure.

3. The reject roll press of claim 2, wherein, The pre-chamber is provided with a flow guide plate, the flow guide plate being adapted to guide the airflow of the negative pressure inlet slot to the one side of the baffle and block the airflow of the negative pressure inlet slot from flowing to the reject roller.

4. The reject roll press according to any one of claims 1 to 3, characterized in that, It also comprises a static pressure dust falling box, the two sides of the upper end of the static pressure dust falling box being provided with an air inlet and an air outlet, the air inlet being adapted to be connected to the dust collecting hopper, the air outlet being encapsulated with a dust filter plate.

5. The reject roll press of claim 4, wherein, The static pressure dust falling box is provided with a breathable partition plate, so that the bore cavity of the static pressure dust falling box is divided into a static pressure dust falling chamber and a sub-chamber, the air inlet and the air outlet respectively communicating with the static pressure dust falling chamber and the sub-chamber.

6. The reject roll press of claim 5, wherein, The breathable partition plate is obliquely arranged.

7. The reject roll press according to any one of claims 1 to 3, wherein It also comprises a sliding seat, the sliding seat being slidingly connected to a guide rail on the rack and being connected with a sliding cylinder, the sliding seat being provided with the reject roller, the blowing pipe, the dust collecting hopper and the baffle, the sliding cylinder being adapted to drive the reject roller to abut or move away from the press roller.

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