Multifunctional eraser cutting device

Abstract

The utility model relates to the technical field of eraser cutting, and discloses a multifunctional eraser cutting device. Comprising a supporting table, fixing plates arranged on the two sides of the upper surface of the supporting table, a driving roller rotationally connected between the fixing plates on the two sides, a driven roller rotationally connected between the fixing plates on the two sides, a conveying belt arranged between the driving roller and the driven roller, a driving motor arranged on the lower side of the supporting table and a cutting assembly arranged above the conveying belt. A blanking plate allowing cut erasers to fall is arranged at the position, close to the driving roller, of the side edge of the supporting table, the section of the blanking plate is in a U shape, a plurality of heightening rods used for heightening the falling erasers are arranged in the middle of the blanking plate, and a plurality of nozzles are arranged on the upper surface of the blanking plate between the adjacent heightening rods. An air inlet cover communicating with the multiple nozzles is arranged on the lower surface of the discharging plate, an air pump is arranged on the lower surface of the supporting table, and an air supply hose is arranged between the air pump and the air inlet cover.

Description

Technical Field

[0001] This utility model belongs to the field of eraser cutting technology, and specifically relates to a multifunctional eraser cutting device. Background Technology

[0002] Erasers are common study and work supplies in daily life. The main working principle of an eraser is to remove graphite or ink from the surface of paper through friction.

[0003] The manufacturing process of erasers mainly includes: 1. Material Preparation – The first step in producing erasers is preparing the necessary raw materials. These raw materials mainly include rubber, softener, and pigments. Rubber is the main material for making erasers, while softener and pigments are used to adjust the hardness and color of the eraser. 2. Mixing and Molding – After preparing the raw materials, the next step is to mix them together. During this process, the proportions of various materials need to be strictly controlled to ensure the quality and performance of the eraser. After being mixed evenly, the materials are placed in a mold for molding. The molded eraser initially takes on its intended shape. 3. Vulcanization – The molded eraser also needs to undergo vulcanization. Vulcanization enhances the elasticity and durability of the rubber, making the eraser less prone to deformation or damage during use. This step is crucial for ensuring the quality of the eraser. 4. Cutting and Packaging – After vulcanization, the erasers are cut into appropriate sizes for easy use. After cutting, the erasers undergo quality inspection to remove substandard products. Finally, the qualified erasers are packaged and await sale on the market.

[0004] Currently, Chinese patent CN216914605U, published on July 8, 2022, discloses a shaping device for producing erasers. The device includes a transmission frame with two sets of transmission frames arranged front and rear, each with two extrusion rollers. A discharge mechanism is placed at the lower end of the transmission frame, with one transmission frame located directly in front of the other. Four extrusion rollers are rotatably connected to the inner sides of the two transmission frames. The discharge mechanism is directly opposite the lower end of the extrusion rollers on the transmission frame. The discharge mechanism includes a guide plate, adjusting rods, a cutting mechanism, lockable casters, and a conveyor belt. The four adjusting rods are fixedly connected to the lower end of the conveyor belt and are arranged in a rectangular array based on its geometric center. The four lockable casters are fixedly connected to the lower ends of the four adjusting rods. The guide plate is fixedly connected to the front section of the upper end of the conveyor belt. The cutting mechanism is fixedly connected to the middle section of the upper end of the conveyor belt. The cutting mechanism includes a fixed frame, a cylinder, and a cutting blade.

[0005] Erasers generate a lot of heat inside after processing, so they cannot be quickly packed after cutting. They must be allowed to cool completely before packing, which makes it difficult to pack quickly. Utility Model Content

[0006] The purpose of this invention is to provide a multifunctional eraser cutting device that can cool the cut erasers.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a multifunctional eraser cutting device, including a support platform, fixed plates on both sides of the upper surface of the support platform, an active roller rotatably connected between the two fixed plates, a driven roller rotatably connected between the two fixed plates, a transmission belt between the active roller and the driven roller, a drive motor located on the lower side of the support platform for driving the active roller to rotate via belt transmission, and a cutting assembly located above the transmission belt. A dropping plate is provided on the side of the support platform, near the active roller, for the cut erasers to fall. The dropping plate has a "U" shaped cross-section. Multiple support rods are provided in the middle of the dropping plate to elevate the falling erasers. Multiple nozzles are provided on the upper surface of the dropping plate between adjacent support rods. An air inlet hood communicating with the multiple nozzles is provided on the lower surface of the dropping plate. An air pump is provided on the lower surface of the support platform, and an air supply hose is provided between the air pump and the air inlet hood.

[0008] A further feature of this invention is that multiple nozzles are evenly spaced along the extension direction of the scaffold pole.

[0009] A further feature of this invention is that a cutting table is provided between the two fixed plates on both sides, which abuts against the lower surface of the transmission belt. The cutting assembly includes a vertical plate on the fixed plate, a drive cylinder on the vertical plate, a lifting plate above the cutting table, a connecting arm on the upper part of the lifting plate and connected to the upper ends of the two drive cylinders, an opening slot at the middle position of the lower end of the lifting plate, and a cutting blade at the position of the opening slot.

[0010] A further feature of this invention is that positioning grooves for embedding the ends of the cutting blades are provided on both sides of the lower end of the opening groove, and the ends of the cutting blades are fixed in the positioning grooves by bolts.

[0011] A further feature of this invention is that guide wheels located on both sides of the lifting plate are rotatably connected to both sides of the upright plate.

[0012] A further feature of this invention is that a rotating shaft is rotatably connected between the two upright plates, and two fixed arms with one end connected to the rotating shaft are provided on the rotating shaft. A pressure roller is rotatably connected between the two fixed arms and at the end of the fixed arm away from the rotating shaft.

[0013] A further feature of this invention is that: two uprights are provided on the support platform and on the side near the driven roller, a connecting shaft is provided between the upper ends of the two uprights, a support roller is rotatably connected to the connecting shaft, and positioning rings located on both sides of the long strip-shaped eraser are sleeved on both sides of the support roller, and threaded holes are provided on the positioning rings, with adjusting bolts whose ends are used to abut against the outer wall of the support roller being threaded into the threaded holes.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. The long, strip-shaped eraser is moved towards the cutting assembly by a conveyor belt. The cutting assembly then cuts the eraser to the required length. The eraser falling from the conveyor belt slides down the drop plate. At this point, multiple support rods on the drop plate elevate the eraser as it slides down, creating a gap between the eraser and the surface of the drop plate. Simultaneously, a high-pressure airflow is supplied into the air intake hood via an air pump and air supply hose. The high-pressure airflow is then sprayed upwards from nozzles between adjacent support rods. This sprayed airflow cools the surface of the sliding eraser, facilitating subsequent rapid packaging operations.

[0016] 2. Multiple nozzles are evenly spaced along the extension direction of the support pole, which can efficiently cool the eraser.

[0017] 3. When the conveyor belt transports the long strip of eraser to the area below the cutting blade, the drive cylinder can drive the cutting blade to move down through the connecting arm and the lifting plate, so that the cutting blade presses the eraser against the cutting table, and the cutting blade can then cut off the eraser.

[0018] 4. The cutting blade end can be inserted into the positioning grooves on both sides of the lower end of the opening groove. Then, the cutting blade end is fixed in the positioning groove with bolts. At this time, the cutting blade can be accurately and stably installed in the opening groove.

[0019] 5. When the lifting platform moves up and down, the guide wheels on the vertical plate abut against the lifting platform, thereby playing a positioning role and ultimately facilitating the stable lifting of the lifting platform;

[0020] 6. When the long strip of eraser is transported on the conveyor belt, the pressure roller presses the eraser onto the conveyor belt by its own weight, which is conducive to the stable transport of the eraser;

[0021] 7. When the long strip of eraser enters the conveyor belt, the support roller supports the eraser, and the positioning rings on both sides of the support roller position the long strip of eraser, which facilitates the accurate transmission of the eraser to the area below the cutting blade. At the same time, the position of the positioning ring on the support roller is adjusted by adjusting bolts according to the different widths of the eraser, so that the positioning ring can be adapted to erasers of different widths. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of this utility model;

[0025] Figure 3 This is a partially enlarged view of the connection relationship between the lifting plate and the cutting blade in this utility model;

[0026] Figure 4 This is a partially enlarged view of the connection relationship between the upright rod and the support roller in this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the lower side of the support platform in this utility model;

[0028] Figure 6 This is a schematic diagram of the material feeding plate in this utility model.

[0029] In the diagram, 1. Support platform; 11. Fixed plate; 111. Cutting table; 12. Drive roller; 13. Driven roller; 14. Conveyor belt; 15. Drive motor; 16. Air pump; 161. Air supply hose; 2. Cutting assembly; 21. Vertical plate; 211. Guide wheel; 212. Rotating shaft; 213. Fixed arm; 214. Pressure roller; 22. Drive cylinder; 23. Lifting plate; 24. Connecting arm; 25. Opening slot; 251. Positioning slot; 26. Cutting blade; 3. Drop plate; 31. Elevating rod; 32. Nozzle; 33. Air inlet hood; 4. Vertical rod; 41. Connecting shaft; 42. Support roller; 43. Positioning ring; 431. Threaded hole; 432. Adjusting bolt. Detailed Implementation

[0030] The technical solutions in the embodiments will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] A multifunctional eraser cutting device, as shown in the reference. Figure 1 This multifunctional eraser cutting device includes a support platform 1, a fixed plate 11, a drive roller 12, a driven roller 13, a transmission belt 14, a drive motor 15, and a cutting assembly 2. The fixed plate 11 is welded to both sides of the upper surface of the support platform 1. The drive roller 12 is rotatably connected between the two fixed plates 11 via bearings, and the driven roller 13 is also rotatably connected between the two fixed plates 11 via bearings. The transmission belt 14 is disposed between the drive roller 12 and the driven roller 13. The drive motor 15 is fixed to the lower side of the support platform 1 by bolts and drives the drive roller 12 to rotate via belt drive.

[0032] Reference Figure 1 , Figure 2 , Figure 3 The cutting assembly 2 is positioned above the conveyor belt 14 and is used to cut the elongated erasers that are being transported. A cutting table 111, which abuts against the lower surface of the conveyor belt 14, is bolted between the two fixing plates 11. This cutting assembly 2 includes a vertical plate 21, a drive cylinder 22, a lifting plate 23, a connecting arm 24, an opening slot 25, and a cutting blade 26. The vertical plate 21 is welded to the upper side of the fixing plate 11, and the drive cylinder 22 is bolted to the outer wall of the vertical plate 21. The lifting plate 23 is located on the cutting table. Above 111, and on both sides of the upright plate 21, guide wheels 211 located on both sides of the lifting plate 23 are rotatably connected. The connecting arm 24 is welded to the upper end of the lifting plate 23 and is connected to the upper end of the two drive cylinders 22 by bolts. The opening slot 25 is opened at the middle position of the lower end of the lifting plate 23, and the cutting blade 26 is set at the position of the opening slot 25. At the same time, the lower end of the opening slot 25 has positioning slots 251 on both sides for the end of the cutting blade 26 to be inserted. The end of the cutting blade 26 is fixed to the positioning slot 251 by bolts.

[0033] Reference Figure 2 , Figure 4A rotating shaft 212 is rotatably connected between the two upright plates 21 via bearings. Two fixed arms 213 are provided on the rotating shaft 212, one end of which is fixedly connected to the rotating shaft 212. A pressure roller 214 is rotatably connected between the two fixed arms 213 and at the end of the fixed arm 213 away from the rotating shaft 212 via bearings. At the same time, two uprights 4 are fixed to the support platform 1 and near the driven roller 13 via bolts. A connecting shaft 41 is fixed between the upper ends of the two uprights 4 via bolts. A support roller 42 is rotatably connected to the connecting shaft 41 via bearings. Positioning rings 43 are fitted on both sides of the support roller 42 and are located on both sides of the long strip-shaped eraser. The positioning rings 43 are provided with threaded holes 431, and the threaded holes 431 are internally threaded with adjusting bolts 432 whose ends are used to abut against the outer wall of the support roller 42.

[0034] Reference Figure 1 , Figure 5 , Figure 6 On the side of the support platform 1, near the drive roller 12, a drop plate 3 is bolted to allow the cut erasers to fall. The drop plate 3 has a "U" shaped cross section. Multiple support rods 31 for raising the falling erasers are welded to the middle of the drop plate 3. Multiple nozzles 32 are fixed on the upper surface of the drop plate 3 between adjacent support rods 31. The nozzles 32 are evenly spaced along the extension direction of the support rods 31. An air inlet hood 33 connected to the multiple nozzles 32 is integrally provided on the lower surface of the drop plate 3. An air pump 16 is bolted to the lower surface of the support platform 1. An air supply hose 161 is provided between the air pump 16 and the air inlet hood 33, so that air can be supplied to the nozzles 32 through the air pump 16.

[0035] Principle: The elongated eraser is moved towards the cutting assembly 2 by the conveyor belt 14. Then, the drive cylinder 22 drives the cutting blade 26 to move down through the connecting arm 24 and the lifting plate 23, so that the cutting blade 26 presses the eraser against the cutting table 111. At this time, the cutting blade 26 can cut the eraser. The eraser falling from the conveyor belt 14 slides down the drop plate 3. At this time, multiple support rods 31 on the drop plate 3 are used to support the eraser sliding up and down the drop plate 3, so that there is a gap between the eraser and the upper surface of the drop plate 3. At the same time, the air pump 16 and the air supply hose 161 supply high-pressure airflow into the air inlet hood 33. Then, the high-pressure airflow is sprayed upward from the nozzle 32 between two adjacent support rods 31. The sprayed airflow can spray onto the surface of the sliding eraser, thereby cooling the surface of the eraser through the high-pressure airflow, which facilitates the subsequent rapid packaging operation.

Claims

1. A multifunctional eraser cutting device, comprising a support platform (1), fixed plates (11) disposed on both sides of the upper surface of the support platform (1), a drive roller (12) rotatably connected between the two fixed plates (11), a driven roller (13) rotatably connected between the two fixed plates (11), a transmission belt (14) disposed between the drive roller (12) and the driven roller (13), a drive motor (15) disposed on the lower side of the support platform (1) and used to drive the drive roller (12) to rotate via belt transmission, and a cutting assembly (2) disposed above the transmission belt (14), characterized in that: A drop plate (3) for the cut erasers to fall is provided on the side of the support platform (1) and near the drive roller (12). The cross-section of the drop plate (3) is "U". Multiple support rods (31) for raising the falling erasers are provided in the middle of the drop plate (3). Multiple nozzles (32) are provided on the upper surface of the drop plate (3) between adjacent support rods (31). An air inlet hood (33) communicating with the multiple nozzles (32) is provided on the lower surface of the drop plate (3). An air pump (16) is provided on the lower surface of the support platform (1). An air supply hose (161) is provided between the air pump (16) and the air inlet hood (33).

2. The multifunctional eraser cutting device according to claim 1, characterized in that: Multiple nozzles (32) are evenly spaced along the extension direction of the support pole (31).

3. The multifunctional eraser cutting device according to claim 1, characterized in that: A cutting table (111) is provided between the two fixed plates (11) on both sides, which abuts against the lower surface of the conveyor belt (14). The cutting assembly (2) includes a vertical plate (21) on the fixed plate (11), a drive cylinder (22) on the vertical plate (21), a lifting plate (23) above the cutting table (111), a connecting arm (24) on the upper end of the lifting plate (23) and connected to the upper end of the two drive cylinders (22), an opening slot (25) at the middle position of the lower end of the lifting plate (23), and a cutting blade (26) at the position of the opening slot (25).

4. The multifunctional eraser cutting device according to claim 3, characterized in that: The lower end of the opening groove (25) is provided with positioning grooves (251) on both sides for the end of the cutting blade (26) to be inserted. The end of the cutting blade (26) is fixed in the positioning groove (251) by bolts.

5. A multifunctional eraser cutting device according to claim 3, characterized in that: The upright plate (21) is rotatably connected to guide wheels (211) located on both sides of the lifting plate (23).

6. A multifunctional eraser cutting device according to claim 3, characterized in that: A rotating shaft (212) is rotatably connected between the two upright plates (21). Two fixed arms (213) with one end connected to the rotating shaft (212) are provided on the rotating shaft (212). A pressure roller (214) is rotatably connected between the two fixed arms (213) and at the end of the fixed arm (213) away from the rotating shaft (212).

7. The multifunctional eraser cutting device according to claim 1, characterized in that: Two uprights (4) are provided on the support platform (1) and on the side near the driven roller (13). A connecting shaft (41) is provided between the upper ends of the two uprights (4). A support roller (42) is rotatably connected to the connecting shaft (41). Positioning rings (43) located on both sides of the long strip eraser are sleeved on both sides of the support roller (42). Threaded holes (431) are provided on the positioning rings (43). Adjusting bolts (432) with their ends for pressing against the outer wall of the support roller (42) are threaded into the threaded holes (431).

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