Knife grinding and dust removing device of leather shaving machine

Abstract

The utility model discloses a sharpening dust removal device of a leather shaving machine, which comprises a bottom plate and is provided with a cutting component arranged on the bottom plate and used for shaving leather, a dust collection component used for cleaning leather scraps and a scraping component used for scraping residual scraps on the surface of the leather. Comprising a dust collection horn, a dust collection pipe fixedly connected to the dust collection horn, a material falling box fixedly connected to the end, away from the dust collection horn, of the dust collection pipe, a sealing box door arranged on the outer surface of the material falling box, an air suction pipe fixedly connected to the interior of the material falling box, a fixing plate fixedly connected to the inner surface of the air suction pipe, and a motor B fixedly connected to the outer surface of the fixing plate. By arranging the dust collection assembly, leather chippings generated around the polishing sleeve during working can be adsorbed and collected, so that the influence on the polishing sleeve is reduced, and by arranging the scraping assembly in a matched manner, the chippings remaining on the surface of leather can be effectively removed, so that the dust removal effect of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of leather processing technology, and in particular to a dust removal device for a leather shaving machine. Background Technology

[0002] Leather trimming machines are key pieces of equipment in leather production used to trim the thickness of leather, ensuring a uniform thickness on the leather surface. This directly affects the smoothness, feel, and subsequent processing quality of the finished leather product. In actual production, the leather enters the trimming station via a feeding mechanism, where a high-speed rotating blade roller and a fixed blade work together to complete the cutting.

[0003] However, leather cutting generates a large amount of leather scraps and fiber dust. Currently, conventional leather trimming machines generally lack dust removal components, resulting in insufficient dust removal and incomplete scrap cleaning. For example, the scraps generated during trimming tend to adhere to the surface of the cutting roller, which not only reduces the cutting sharpness of the roller but also causes scratches on the leather surface and uneven trimming thickness, affecting trimming accuracy and product qualification rate. Secondly, most dust collection structures have a single dust collection path and a limited negative pressure area, making it difficult to achieve stable adsorption and collection of scraps generated in the cutting area of ​​the cutting roller. This easily leads to incomplete dust collection and stubborn scrap adhesion, resulting in scraps remaining on the leather surface and affecting the appearance quality of the finished leather product. Utility Model Content

[0004] The purpose of this utility model is to provide a dust removal device for a leather shaving machine, which can adsorb and collect leather debris generated around the shaving sleeve during operation, thereby reducing the impact on the shaving sleeve and effectively removing residual debris from the leather surface, thus improving the dust removal effect of the device.

[0005] To achieve the above objectives, a dust removal device for a leather shaving machine is provided, comprising:

[0006] The base plate has a cutting component for evenly shaving the leather, a vacuuming component for cleaning leather debris, and a scraping component for scraping off residual debris from the leather surface.

[0007] The vacuuming assembly includes a vacuum horn, a vacuum hose fixedly connected to the vacuum horn, a discharge box fixedly connected to the end of the vacuum hose away from the vacuum horn, a sealed door on the outer surface of the discharge box, an air suction pipe fixedly connected to the inside of the discharge box with one end extending into it, a fixing plate fixedly connected to the inner surface of the air suction pipe, a motor B fixedly connected to the outer surface of the fixing plate, a rotating shaft fixedly connected to the output end of the motor B, fan blades fixedly connected to the outer surface of the rotating shaft, and a removable filter screen fixedly connected to the side of the air suction pipe near the inside of the discharge box by bolts.

[0008] The scraping assembly includes a processing chamber, a discharge hole on the outer surface of the processing chamber, an inclined scraper fixedly connected to the inner surface of the processing chamber and with its lower end fixedly connected to the discharge hole, two sets of limiting grooves on the outer surface of the processing chamber, a limiting rod fixedly connected to the inner surface of the limiting groove, a spring sleeved on the outer surface of the limiting rod, a drive shaft slidably sleeved on the outer surface of the limiting rod, and a guide roller rotatably connected to the outer surface of the drive shaft via a bearing and in contact with the upper end of the inclined surface of the inclined scraper. One end of the spring is in contact with the drive shaft, and the other end of the spring is in contact with the inner surface of the limiting groove.

[0009] Preferably, the cutting assembly includes a motor A, a connecting roller A fixedly connected to the output end of the motor A, a grinding sleeve fixedly connected to the outer surface of the connecting roller A, a connecting roller B rotatably connected to the inside of the processing chamber via a bearing, and a rubber sleeve fixedly connected to the outer surface of the connecting roller B.

[0010] Preferably, the upper surface of the base plate is fixedly connected to the material drop box, the upper surface of the material drop box is fixedly connected to the processing chamber, and the inner surface of the processing chamber is fixedly connected to the dust suction horn.

[0011] Preferably, the outer surface of the connecting roller A is rotatably connected to the processing chamber via a bearing.

[0012] Preferably, the outer surface of the suction pipe is fixedly connected to the processing chamber.

[0013] Preferably, the outer surface of the rotating shaft is rotatably connected to the fixed plate via a bearing.

[0014] Preferably, the inner surface of the limiting groove is slidably connected to the drive shaft.

[0015] Preferably, the outer surface of the sealed box door is provided with a handle for pushing and pulling the sealed box door.

[0016] The above-mentioned solution has the following beneficial effects:

[0017] By incorporating a dust-collecting component, leather debris generated around the polishing sleeve during operation can be adsorbed and collected, thereby reducing its impact on the polishing sleeve. In addition, the scraping component can effectively remove residual debris from the leather surface, thus improving the dust removal effect of the device.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the overall structure of the grinding and dust removal device for a leather shaving machine according to the present invention;

[0021] Figure 2 This is a cross-sectional view of the overall structure of the grinding and dust removal device for a leather shaving machine according to this utility model;

[0022] Figure 3 This is a partial structural schematic diagram of a leather shaving machine grinding and dust removal device according to the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of a leather shaving machine grinding and dust removal device according to the present invention;

[0024] Figure 5 This is a cross-sectional view of the internal structure of the grinding and dust removal device for a leather shaving machine according to this utility model;

[0025] Figure 6 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0026] Legend:

[0027] The components are as follows: 1. Base plate; 2. Feed box; 3. Sealed box door; 4. Processing chamber; 5. Motor A; 6. Connecting roller A; 7. Grinding sleeve; 8. Connecting roller B; 9. Rubber sleeve; 10. Dust suction horn; 11. Dust suction pipe; 12. Air suction pipe; 13. Fixing plate; 14. Motor B; 15. Rotating shaft; 16. Fan blades; 17. Filter screen; 18. Feed hole; 19. Angled scraper; 20. Limiting groove; 21. Limiting rod; 22. Spring; 23. Drive shaft; 24. Guide roller. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6This utility model provides a leather shaving machine grinding and dust removal device, which includes: a base plate 1, which has a cutting component for shaving leather, a dust suction component for cleaning leather debris, and a scraping component for scraping off residual debris on the leather surface. The cutting component includes a motor A5, a connecting roller A6 fixedly connected to the output end of the motor A5, a grinding sleeve 7 fixedly connected to the outer surface of the connecting roller A6, a connecting roller B8 rotatably connected to the inside of the processing chamber 4 through a bearing, and a rubber sleeve 9 fixedly connected to the outer surface of the connecting roller B8. The outer surface of the connecting roller A6 is rotatably connected to the processing chamber 4 through a bearing.

[0030] Reference Figure 2 and Figure 5 The vacuum assembly includes a vacuum horn 10, a vacuum pipe 11 fixedly connected to the vacuum horn 10, a discharge box 2 fixedly connected to the end of the vacuum pipe 11 away from the vacuum horn 10, a sealed box door 3 opened on the outer surface of the discharge box 2, an air suction pipe 12 fixedly connected to the inside of the discharge box 2 with one end extending into it, a fixing plate 13 fixedly connected to the inner surface of the air suction pipe 12, a motor B14 fixedly connected to the outer surface of the fixing plate 13, a rotating shaft 15 fixedly connected to the output end of the motor B14, and a rotating shaft 15 fixedly connected to the rotating shaft. The fan blades 16 on the outer surface of the base plate 15 and the removable filter screen 17 are fixedly connected to the suction pipe 12 near the inside of the discharge box 2 by bolts. The upper surface of the base plate 1 is fixedly connected to the discharge box 2. The upper surface of the discharge box 2 is fixedly connected to the processing chamber 4. The inner surface of the processing chamber 4 is fixedly connected to the dust suction horn 10. The outer surface of the dust suction pipe 11 is fixedly connected to the processing chamber 4. The outer surface of the rotating shaft 15 is rotatably connected to the fixed plate 13 by bearings. The outer surface of the sealed box door 3 is provided with a handle for pushing and pulling the sealed box door 3.

[0031] Reference Figure 2 , Figure 4 and Figure 6 The scraping assembly includes a processing chamber 4, a discharge hole 18 on the outer surface of the processing chamber 4, an inclined scraper 19 fixedly connected to the inner surface of the processing chamber 4 and whose lower end of the inclined surface is fixedly connected to the discharge hole 18, two sets of limiting grooves 20 on the outer surface of the processing chamber 4, a limiting rod 21 fixedly connected to the inner surface of the limiting groove 20, a spring 22 sleeved on the outer surface of the limiting rod 21, a drive shaft 23 slidably sleeved on the outer surface of the limiting rod 21, and a guide roller 24 rotatably connected to the outer surface of the drive shaft 23 by a bearing and in contact with the upper end of the inclined surface of the inclined scraper 19. The inner surface of the limiting groove 20 is slidably connected to the drive shaft 23, one end of the spring 22 is in contact with the drive shaft 23, and the other end of the spring 22 is in contact with the inner surface of the limiting groove 20.

[0032] Those skilled in the art should connect all electrical components in this case to their compatible external power supply via wires, and should select a suitable controller according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0033] Working principle: During operation, the leather to be evenly shaved is introduced between connecting rollers A6 and B8, and between the inclined scraper block 19 and guide roller 24, and finally fixed on the winding device for conveying. During the conveying process, motors A5 and B14 are started. Under the action of motor A5, the connecting roller A6 drives the polishing sleeve 7 to rotate at high speed. When the leather passes between the polishing sleeve 7 and the rubber sleeve 9, the thicker part of the leather is shaved off by the polishing sleeve 7, while the remaining part maintains the distance between the edges of the polishing sleeve 7 and the rubber sleeve 9, thus achieving the even shaving operation. Under the action of motor B14, the rotating shaft 15 drives the fan blades 16 to vibrate at high speed, thereby generating negative pressure inside the feed box 2. This negative pressure is then drawn through the suction pipe 11 and the rubber sleeve 9 by the polishing sleeve 7 during shaving. The leather scraps generated during the even-shaving operation are absorbed and then sent to the discharge box 2 for storage to prevent the scraps from scattering on the grinding sleeve 7 and affecting the even-shaving effect of the grinding sleeve 7. After the leather is evenly shaved, the guide roller 24 is squeezed outward along the limit rod 21 due to the thickness of the leather under the connection of the drive shaft 23, and the spring 22 is compressed. Then, under the rebound force of the spring 22, the guide roller 24 squeezes the back of the leather. Similarly, due to the squeezing action of the guide roller 24, the guide roller 24 can make the leather grinding surface fit tightly against the inclined scraper block 19, thereby scraping off the scraps attached to the leather surface during the leather transmission process, and discharging them through the discharge hole 18 along the inclined surface on the inclined scraper block 19, thereby further improving the dust removal effect of the device.

[0034] In the description of this utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A leather skiving machine grinding dust removal device, characterized in that, include: The base plate (1) has a cutting assembly disposed on the base plate (1) for evenly shaving the leather, a dust suction assembly for cleaning leather debris, and a scraping assembly for scraping off residual debris from the leather surface. The vacuum assembly includes a vacuum horn (10), a vacuum pipe (11) fixedly connected to the vacuum horn (10), a discharge box (2) fixedly connected to the end of the vacuum pipe (11) away from the vacuum horn (10), a sealed box door (3) opened on the outer surface of the discharge box (2), an air suction pipe (12) fixedly connected to the inside of the discharge box (2) with one end extending into the inside, a fixing plate (13) fixedly connected to the inner surface of the air suction pipe (12), a motor B (14) fixedly connected to the outer surface of the fixing plate (13), a rotating shaft (15) fixedly connected to the output end of the motor B (14), a fan blade (16) fixedly connected to the outer surface of the rotating shaft (15), and a removable filter screen (17) fixedly connected to the side of the air suction pipe (12) near the inside of the discharge box (2) by bolts. The scraping assembly includes a processing chamber (4), a material drop hole (18) on the outer surface of the processing chamber (4), an inclined scraper (19) fixedly connected to the inner surface of the processing chamber (4) and whose lower end of the inclined surface is fixedly connected to the inside of the material drop hole (18), two sets of limiting grooves (20) on the outer surface of the processing chamber (4), a limiting rod (21) fixedly connected to the inner surface of the limiting groove (20), a spring (22) sleeved on the outer surface of the limiting rod (21), a drive shaft (23) slidably sleeved on the outer surface of the limiting rod (21), and a guide roller (24) rotatably connected to the outer surface of the drive shaft (23) by a bearing and in contact with the upper end of the inclined surface of the inclined scraper (19). One end of the spring (22) is in contact with the drive shaft (23), and the other end of the spring (22) is in contact with the inner surface of the limiting groove (20).

2. A dust removal device for a leather skiving machine according to claim 1, characterized in that The cutting assembly includes a motor A (5), a connecting roller A (6) fixedly connected to the output end of the motor A (5), a grinding sleeve (7) fixedly connected to the outer surface of the connecting roller A (6), a connecting roller B (8) rotatably connected to the inside of the processing chamber (4) via a bearing, and a rubber sleeve (9) fixedly connected to the outer surface of the connecting roller B (8).

3. The leather skiving machine knife sharpening and dust removing device according to claim 1, characterized in that, The upper surface of the base plate (1) is fixedly connected to the material drop box (2), the upper surface of the material drop box (2) is fixedly connected to the processing chamber (4), and the inner surface of the processing chamber (4) is fixedly connected to the dust suction horn (10).

4. The leather skiving machine knife sharpening and dust removal device according to claim 2, characterized in that, The outer surface of the connecting roller A (6) is rotatably connected to the processing chamber (4) via a bearing.

5. The leather skiving machine knife sharpening and dust removal device according to claim 1, characterized in that, The outer surface of the suction pipe (11) is fixedly connected to the processing chamber (4).

6. The leather skiving machine knife sharpening and dust removal device according to claim 1, characterized in that, The outer surface of the rotating shaft (15) is rotatably connected to the fixed plate (13) via a bearing.

7. The leather skiving machine knife-dressing and dust-removing device according to claim 1, characterized in that, The inner surface of the limiting groove (20) is slidably connected to the drive shaft (23).

8. The knife-dressing and dust-removing device of the leather skiving machine according to claim 1, characterized in that, The outer surface of the sealed box door (3) is provided with a handle for pushing and pulling the sealed box door (3).

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