Raw material screening device for pencil production
By designing a raw material screening device for pencil production, using vibrators and springs to screen qualified crushed materials, the problem of excessively small raw materials in the crushed graphite screening affecting the quality of the pencil core is solved, and efficient screening and convenient disassembly are achieved.
Patent Information
- Application Number
- CN202421684715.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-17
AI Technical Summary
During the pencil production process, the crushed graphite crushed material needs to be screened, and the prior art is difficult to effectively remove too small raw materials, which affects the quality of the pencil core.
A raw material screening device for pencil production is designed, including a box, a support frame, a first screening mechanism and a second screening mechanism. The screening is screened using a vibrator and a spring-coupled screening plate to ensure that the qualified size of the scrap material remains on the screening plate and is initially screened through the screening cylinder driven by the motor.
Improve screening efficiency, prevent too small raw materials from affecting the quality of the pencil core, and simplify the disassembly and cleaning process of the screen barrel.
Smart Images
Figure CN223056119U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of pencil production equipment, in particular to a raw material screening device for pencil production. Background Technique
[0002] A pencil is a common writing instrument, usually used for writing, drawing, etc.; it consists of a wooden rod and a lead core. The lead core is made of a mixture of graphite and clay and is wrapped in a wooden outer shell; the hardness and darkness of the pencil depend on the ratio of graphite and clay in the lead core. Generally, "H" represents a hard pencil, "B" represents a soft pencil, and the number represents the degree of hardness or softness.
[0003] When producing pencils, graphite is needed and the graphite needs to be crushed. Since the crushed graphite has different specifications, subsequent screening work is also required to ensure that the crushed materials of the appropriate specifications are used to make pencil cores of the corresponding specifications. At this time, the over-crushed raw materials will also remain inside the raw materials that pass the screening, which will affect the quality of the target pencil core. Therefore, there is an urgent need for a device to solve the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a raw material screening device for pencil production to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A raw material screening device for pencil production, including a box body. A support frame for supporting the box body is fixedly arranged on the outer side of the box body. A first screening mechanism is arranged inside the box body. A second screening mechanism is arranged at the lower end inside the box body. The second screening mechanism includes a plate body, a chute, a sieve plate, a spring and a vibrator. The plate body is slidably arranged inside the box body. One side of the plate body is fixed to the box body. The chute is opened on the inner side of the plate body. The sieve plate is slidably arranged inside the chute. The spring is fixed at the position between the inner side wall of the chute and the sieve plate. The vibrator is fixed on one side of the sieve plate. When in use, the first screening mechanism screens the crushed materials, so that the crushed materials of qualified size fall on the sieve plate. Then the vibrator is started. The vibrator drives the sieve plate to vibrate, and the vibration is amplified in cooperation with the spring. The vibrating sieve plate is used to improve the screening efficiency, so that the too-small raw materials are screened and dropped, so that the crushed materials of qualified size remain on the sieve plate, preventing the too-small raw materials from remaining on the sieve plate and affecting the quality of the subsequent pencil cores.
[0006] Preferably, the first screening mechanism includes a motor, a rotating shaft, a screen cylinder, a fixed cover, an inlet pipe, a first hollow rod, a second hollow rod, and a fixing screw. The motor is fixed on one side of the box body. The rotating shaft penetrates into the box body movably. The second hollow rod is sleeved on the outer side of the rotating shaft movably. The first hollow rod is sleeved on the outer side of the second hollow rod movably. The fixing screw is inserted through the top end of the first hollow rod by thread. The screen cylinder is fixed on one side of the first hollow rod. The fixed cover is fixed on the inner side wall of the box body. One side of the fixed cover is sleeved on one side of the screen cylinder movably. The inlet pipe is embedded and fixed on the fixed cover. When in use, start the motor. The motor drives the screen cylinder to rotate through the first hollow rod and the second hollow rod. Then inject the raw materials into the screen cylinder through the inlet pipe. Conduct preliminary screening through the rotating screen cylinder. At the same time, after the screening is completed, loosen the fixing screw at this time, and then slide the second hollow rod along the first hollow rod to make the second hollow rod disengage from the rotating shaft, which is convenient for the disassembly of the screen cylinder, so as to facilitate the treatment of the broken materials inside the screen cylinder.
[0007] Preferably, a cover plate is slidably arranged at the top end of the box body.
[0008] Preferably, there are two chutes, which are symmetrically arranged on both sides inside the plate body.
[0009] Preferably, the rotating shaft is fixed at the output end of the motor.
[0010] Preferably, one side of the inlet pipe extends to the outside of the box body.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. When the present utility model is in use, the first screening mechanism screens the broken materials, so that the broken materials of qualified size fall on the screen plate. Then start the vibrator. The vibrator drives the screen plate to vibrate, and the vibration is amplified by the spring. The screening efficiency is improved by using the vibrating screen plate, so that the too small raw materials are screened and dropped, so that the broken materials of qualified size remain on the screen plate, preventing the too small raw materials from remaining on the screen plate and affecting the quality of the subsequent pencil cores;
[0013] 2. When the present utility model is in use, start the motor. The motor drives the screen cylinder to rotate through the first hollow rod and the second hollow rod. Then inject the raw materials into the screen cylinder through the inlet pipe. Conduct preliminary screening through the rotating screen cylinder. At the same time, after the screening is completed, loosen the fixing screw at this time, and then slide the second hollow rod along the first hollow rod to make the second hollow rod disengage from the rotating shaft, which is convenient for the disassembly of the screen cylinder, so as to facilitate the treatment of the broken materials inside the screen cylinder. Description of the Drawings
[0014] Figure 1 It is a schematic diagram of the overall structure of a raw material screening device for pencil production of the present utility model;
[0015] Figure 2 This is the first cross-sectional view of a raw material screening device for pencil production of the present utility model;
[0016] Figure 3 This is the second cross-sectional view of a raw material screening device for pencil production of the present utility model;
[0017] Figure 4 This is an enlarged schematic view of A of a raw material screening device for pencil production of the present utility model.
[0018] In the figure: 1, box body; 2, motor; 3, plate body; 4, cover plate; 5, fixed cover; 6, inlet pipe; 7, screen cylinder; 8, first hollow rod; 9, second hollow rod; 10, fixed screw; 11, rotating shaft; 12, chute; 13, vibrator; 14, spring; 15, support frame; 16, sieve plate. Specific embodiments
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] Please refer to Figures 1-4 , the present utility model provides a raw material screening device for pencil production, including a box body 1, a cover plate 4 slides on the top of the box body 1, a support frame 15 for supporting the box body 1 is fixed on the outside of the box body 1 by bolts, there is a first screening mechanism inside the box body 1, and a second screening mechanism is arranged at the lower end inside the box body 1. The second screening mechanism includes a plate body 3, a chute 12, a sieve plate 16, a spring 14 and a vibrator 13. The plate body 3 slides inside the box body 1, one side of the plate body 3 is fixed on the box body 1 by bolts, the chute 12 is opened on the inner side of the plate body 3, there are two chutes 12, symmetrically opened at both sides inside the plate body 3, the sieve plate 16 slides inside the chute 12, the spring 14 is welded and fixed between the inner side wall of the chute 12 and the sieve plate 16, the vibrator 13 is fixed on one side of the sieve plate 16 by bolts. When in use, the first screening mechanism screens the broken materials, so that the broken materials of qualified size fall on the sieve plate 16, then start the vibrator 13, the vibrator 13 drives the sieve plate 16 to vibrate, and cooperates with the spring 14 to amplify the vibration, and the vibrating sieve plate 16 is used to improve the screening efficiency, so that the too small raw materials are screened and dropped, so that the broken materials of qualified size remain on the sieve plate 16, preventing the too small raw materials from remaining on the sieve plate 16 and affecting the quality of the subsequent pencil cores.
[0021] The first screening mechanism includes a motor 2, a rotating shaft 11, a screen cylinder 7, a fixed cover 5, an inlet pipe 6, a first hollow rod 8, a second hollow rod 9, and a fixing screw 10. The motor 2 is fixed to one side of the box body 1 through a mounting bracket. The rotating shaft 11 is fixed to the output end of the motor 2 through a coupling. The rotating shaft 11 movably penetrates into the interior of the box body 1. The second hollow rod 9 is movably sleeved outside the rotating shaft 11. The first hollow rod 8 is movably sleeved outside the second hollow rod 9. The fixing screw 10 is inserted through the top of the first hollow rod 8 by threading. The screen cylinder 7 is fixed to one side of the first hollow rod 8 through bolts. The fixed cover 5 is fixed to the inner side wall of the box body 1 through bolts. One side of the fixed cover 5 is movably sleeved on one side of the screen cylinder 7. The inlet pipe 6 is inlaid and fixed on the fixed cover 5. One side of the inlet pipe 6 extends to the outside of the box body 1. When in use, start the motor 2. The motor 2 drives the screen cylinder 7 to rotate through the first hollow rod 8 and the second hollow rod 9. Then, inject the raw materials into the interior of the screen cylinder 7 through the inlet pipe 6. Conduct preliminary screening work through the rotating screen cylinder 7. At the same time, after the screening is completed, loosen the fixing screw 10 at this time, and then slide the second hollow rod 9 along the first hollow rod 8 so that the second hollow rod 9 disengages from the rotating shaft 11, which facilitates the disassembly of the screen cylinder 7, thereby facilitating the processing of the broken materials inside the screen cylinder 7.
[0022] Working principle: When in use, the first screening mechanism screens the broken materials, so that the broken materials of qualified size fall on the screen plate 16. Then start the vibrator 13. The vibrator 13 drives the screen plate 16 to vibrate, and cooperates with the spring 14 to amplify the vibration. Utilize the vibrating screen plate 16 to improve the screening efficiency, so that the too small raw materials are screened and dropped, so that the broken materials of qualified size remain on the screen plate 16, preventing the too small raw materials from remaining on the screen plate 16 and affecting the quality of the subsequent pencil leads; When in use, start the motor 2. The motor 2 drives the screen cylinder 7 to rotate through the first hollow rod 8 and the second hollow rod 9. Then, inject the raw materials into the interior of the screen cylinder 7 through the inlet pipe 6. Conduct preliminary screening work through the rotating screen cylinder 7. At the same time, after the screening is completed, loosen the fixing screw 10 at this time, and then slide the second hollow rod 9 along the first hollow rod 8 so that the second hollow rod 9 disengages from the rotating shaft 11, which facilitates the disassembly of the screen cylinder 7, thereby facilitating the processing of the broken materials inside the screen cylinder 7.
[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0024] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A raw material screening device for pencil production, comprising a box body (1), characterized in that: A support frame (15) for supporting the box body (1) is fixedly arranged on the outer side of the box body (1). A first screening mechanism is arranged inside the box body (1). A second screening mechanism is arranged at the lower end inside the box body (1). The second screening mechanism comprises a plate body (3), a sliding groove (12), a sieve plate (16), a spring (14) and a vibrator (13). The plate body (3) is slidably arranged inside the box body (1). One side of the plate body (3) is fixed to the box body (1). The sliding groove (12) is opened on the inner side of the plate body (3). The sieve plate (16) is slidably arranged inside the sliding groove (12). The spring (14) is fixed at the position between the inner side wall of the sliding groove (12) and the sieve plate (16). The vibrator (13) is fixed on one side of the sieve plate (16).
2. The raw material screening device for pencil production according to claim 1, characterized in that: The first screening mechanism comprises a motor (2), a rotating shaft (11), a sieve mesh cylinder (7), a fixed cover (5), an inlet pipe (6), a first hollow rod (8), a second hollow rod (9) and a fixing screw (10). The motor (2) is fixed on one side of the box body (1). The rotating shaft (11) movably penetrates into the inside of the box body (1). The second hollow rod (9) is movably sleeved on the outer side of the rotating shaft (11). The first hollow rod (8) is movably sleeved on the outer side of the second hollow rod (9). The fixing screw (10) is inserted through the top end of the first hollow rod (8) by means of a thread. The sieve mesh cylinder (7) is fixed on one side of the first hollow rod (8). The fixed cover (5) is fixed on the inner side wall of the box body (1). One side of the fixed cover (5) is movably sleeved on one side of the sieve mesh cylinder (7). The inlet pipe (6) is inlaid and fixed on the fixed cover (5).
3. The raw material screening device for pencil production according to claim 2, characterized in that: A cover plate (4) is slidably arranged at the top end of the box body (1).
4. A raw material screening device for pencil production according to claim 3, characterized in that: There are two sliding grooves (12), which are symmetrically opened at both sides inside the plate body (3).
5. The raw material screening device for pencil production according to claim 4, wherein: The rotating shaft (11) is fixed at the output end of the motor (2).
6. The raw material screening device for pencil production according to claim 5, characterized in that: One side of the inlet pipe (6) extends to the outside of the box body (1).