Bulletproof ceramic chip raw material screening device

Abstract

The utility model discloses a bulletproof ceramic chip raw material screening device which comprises a base, a box body is arranged on one side of the top of the base, a bearing plate is rotatably connected to the back face of the inner wall of the box body, a screen is arranged on the front face of the inner wall of the base and located at the bottom of the bearing plate, and the outer wall of the screen makes contact with the inner wall of the box body. A supporting frame is fixedly installed at the top end of the box body, a hydraulic cylinder is fixedly installed in the middle of the top end of the supporting frame, and the output end of the hydraulic cylinder penetrates through the supporting frame and is fixedly connected with a baffle. The gear drives the second rack to move in the opposite direction to extrude one end of the bearing plate, so that one end of the bearing plate and the baffle move in the opposite direction, the bearing plate is in an inclined state at the moment, and therefore feed on the bearing plate can be conveniently and rapidly guided to the screen to be screened, and reverse operation is needed when feeding is not needed.

Description

Technical Field

[0001] The utility model relates to a raw material screening device, in particular to a raw material screening device for bulletproof ceramic sheets. Background Art

[0002] Bulletproof ceramic sheet is a material commonly used in bulletproof equipment. It has high strength and impact resistance. The raw materials used for bulletproof ceramic sheets mainly include aluminum borate ceramics and boron nitride ceramics. Aluminum borate ceramics are a ceramic material with very high hardness and low density. Aluminum borate ceramics have extremely high hardness and good wear resistance. It is one of the commonly used materials for manufacturing bulletproof ceramic sheets. Boron nitride ceramics are a ceramic material similar to aluminum borate. Boron nitride ceramics have excellent hardness, strength and heat resistance. Both raw materials have high hardness and impact resistance, and can effectively resist the impact force of bullets. Impurities on the raw materials need to be screened during processing.

[0003] A raw material screening device for bulletproof ceramic sheet production is disclosed in the patent with the announcement number CN 214077819 U. A material collecting funnel is fixedly connected to the bottom of the workbench. The utility model utilizes the cooperation of the filter screen and the auger. The auger can drive the raw material to move above the filter screen, so that the unqualified raw materials filtered out by the screening are discharged from the supporting platform and one end of the sealing shell, thereby ensuring the normal screening work of the filter screen, thereby improving the screening efficiency of the bulletproof ceramic raw materials.

[0004] Although the above technology can improve the screening efficiency of bulletproof ceramic raw materials, it requires continuous manual feeding during screening, resulting in high labor intensity for operators. In addition, the manual feeding speed is slow, which also affects the screening efficiency. Therefore, it has certain limitations, so innovation is carried out on this technology. Utility Model Content

[0005] The utility model aims to provide a material screening device for bulletproof ceramic sheet raw materials to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bulletproof ceramic sheet raw material screening device, comprising a base, a box body is provided on one side of the top of the base, a receiving plate is rotatably connected to the back of the inner wall of the box body, a screen is provided on the front of the inner wall of the base, the screen is located at the bottom of the receiving plate, the outer wall of the screen is in contact with the inner wall of the box body, a support frame is fixedly installed on the top of the box body, a hydraulic cylinder is fixedly installed in the middle of the top of the support frame, the output end of the hydraulic cylinder passes through the support frame and is fixedly connected to a baffle, the back of the baffle is in contact with the front of the receiving plate The two gears are respectively fixedly connected with a first gear and a second gear, and the two gears are meshed with each other on the outer walls of the two gears. The two ends of the gears are rotatably connected to the inner wall of the box body, and the other ends of the two gears are meshed with a second gear. The bottom ends of the two second gears are fixedly connected to the top end of the receiving plate through a connecting spring. The two second gears and the receiving plate are rotatably connected with the same damping rod. Slide grooves are provided in the middle of the two sides of the inner wall of the box body, and the backs of the two second gears are slidably connected to the inner walls of adjacent slide grooves.

[0007] As a preferred technical solution of the utility model, multiple vibration springs are symmetrically connected to both sides of the outer wall of the screen, connecting grooves are opened on the front sides of the inner wall of the box, one end of the multiple vibration springs is fixedly connected to the inside of the adjacent connecting groove, and a vibrator is installed on one side of the bottom end of the screen.

[0008] As a preferred technical solution of the utility model, a material discharge box is provided at the bottom of the screen, and the top end of the material discharge box is slidably connected to the bottom end of the box body.

[0009] As a preferred technical solution of the utility model, an extension frame is fixedly installed on the bottom end of the box body, a hydraulic push rod is fixedly installed in the middle of the front of the extension frame, and the output end of the hydraulic push rod is fixedly connected to the back of the discharge box.

[0010] As a preferred technical solution of the utility model, a limiting groove is provided in the middle of the front side of the top end of the base, and the bottom end of the discharge box is slidably connected to the inner wall of the limiting groove.

[0011] As a preferred technical solution of the utility model, the two corners on the back of the box body are fixedly connected with support columns, the bottom ends of the two support columns are fixedly connected to the top end of the base, and the lengths of the two support columns are consistent with the height of the unloading box.

[0012] As a preferred technical solution of the utility model, a material discharge box is provided at the bottom of the screen, and the top end of the material discharge box is slidably connected to the bottom end of the box body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model drives the hydraulic cylinder to move the baffle up, so that there is a gap between the receiving plate and the baffle, and the first rack drives the gear to rotate, and the gear drives the second rack to move in the opposite direction, squeezing one end of the receiving plate, so that one end of the receiving plate and the baffle run in the opposite direction. The receiving plate is in an inclined state at this time, so it is convenient to quickly guide the feed on the receiving plate to the screen for screening, and reverse operation is only required when loading, thereby realizing the effect of automatic loading, which not only saves labor but also improves screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0018] Figure 4 It is a partial structural schematic diagram of the utility model.

[0019] In the figure: 1. base; 2. box body; 3. receiving plate; 4. screen; 5. unloading box; 6. support frame; 7. hydraulic cylinder; 8. baffle; 9. first rack; 10. gear; 11. slide; 12. second rack; 13. connecting spring; 14. vibration spring; 15. vibrator; 16. extension frame; 17. hydraulic push rod; 18. limit groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] The invention comprises a base 1, a box body 2 is provided on one side of the top of the base 1, a receiving plate 3 is rotatably connected to the back of the inner wall of the box body 2, a screen 4 is provided on the front of the inner wall of the base 1, the screen 4 is located at the bottom of the receiving plate 3, a support frame 6 is fixedly installed on the top of the box body 2, a hydraulic cylinder 7 is fixedly installed on the middle of the top of the support frame 6, the output end of the hydraulic cylinder 7 passes through the support frame 6 and is fixedly connected to a baffle 8, the back of the baffle 8 is in contact with the front of the receiving plate 3, and the two sides of the back of the baffle 8 are fixedly connected to the first rack 9, and the two first racks 9 are fixedly connected to the first racks 9. The outer walls are meshed with gears 10, one end of the two gears 10 is rotatably connected to the inner wall of the box body 2, the other side of the outer walls of the two gears 10 is meshed with second racks 12, the bottom ends of the two second racks 12 are fixedly connected to the top of the receiving plate 3 through the provided connecting springs 13, the two second racks 12 and the receiving plate 3 are rotatably connected with the same damping rod, the middle parts of the two sides of the inner wall of the box body 2 are provided with slide grooves 11, and the backs of the two second racks 12 are slidably connected to the inner walls of the adjacent slide grooves 11.

[0024] In this embodiment, multiple vibration springs 14 are symmetrically connected to both sides of the outer wall of the screen 4, and connecting grooves are opened on the front sides of the inner walls of the box body 2. One end of the multiple vibration springs 14 is fixedly connected to the inside of the adjacent connecting grooves. A vibrator 15 is installed on one side of the bottom end of the screen 4. The setting of the connecting groove plays the role of installing the vibration spring 14, so that the edge of the screen 4 can fit with the inner wall of the box body 2, thereby preventing the raw material from falling through the gap between the screen 4 and the box body 2 during screening.

[0025] In this embodiment, a material box 5 is provided at the bottom of the screen 4, the top of the material box 5 is slidably connected to the bottom of the box body 2, an extension frame 16 is fixedly installed at the bottom of the box body 2, a hydraulic push rod 17 is fixedly installed in the middle of the front of the extension frame 16, and the output end of the hydraulic push rod 17 is fixedly connected to the back of the material box 5, a limiting groove 18 is provided in the middle of the front of the top of the base 1, and the bottom end of the material box 5 is slidably connected to the inner wall of the limiting groove 18, and the two corners on the back of the box body 2 are fixedly connected with support columns, and the bottom ends of the two support columns are connected to the top of the base 1. The ends are fixedly connected, and the lengths of the two support columns are consistent with the height of the discharge box 5. The discharge box 5 is located on the front of the bottom of the box body 2, so it plays a role in bearing the weight of the box body 2. Dust is inevitably generated during screening. If the opening of the discharge box 5 is always open, the flying dust will easily affect the surrounding environment. Therefore, during screening, the opening of the discharge box 5 is always located at the bottom of the box body 2. When material is needed, the discharge box 5 can be pushed to move by driving the hydraulic push rod 17, so that the opening leaves the box body 2, which is convenient for taking the screened raw materials.

[0026] Working principle: when in use, the raw materials to be loaded are first piled on the receiving plate 3 inside the box body 2, and the baffle plate 8 is driven to rise by driving the hydraulic cylinder 7 to generate a gap between the baffle plate 8 and the receiving plate 3. At the same time, the first rack 9 follows the baffle plate 8 to rise and drives the gear 10 to rotate. The gear 10 rotates and meshes with the second rack 12 to drive the second rack 12 to descend, and the end of the receiving plate 3 close to the screen 4 is driven to move downward through the connection of the connecting spring 13. The damping rod plays a role in preventing vibration. At this time, the gap between the baffle plate 8 and the receiving plate 3 is enlarged, and the receiving plate 3 is in an inclined state. The raw materials slide on the receiving plate 3 to the screen 4. After the required amount of material is loaded, the hydraulic cylinder 7 is driven in the reverse direction to restore the baffle 8 and the receiving plate 3 to the shielding state. At this time, the vibrator 15 is driven to drive the screen 4 to vibrate. The vibration amplitude is increased under the connection of the vibration spring 14, and the raw materials on the screen 4 are screened and dropped into the discharge box 5. The screened impurities remain on the screen 4 for subsequent centralized processing. The discharge box 5 is dragged to move in the limit groove 18 by driving the hydraulic push rod 17, so that the opening of the discharge box 5 leaves the box body 2, thereby facilitating the discharge of the screened raw materials in the discharge box 5.

[0027] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, 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 therefore cannot be understood as a limitation on the present invention.

[0028] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material screening device for bulletproof ceramic sheet raw materials, comprising a base (1), characterized in that: A box body (2) is provided on one side of the top of the base (1), the back side of the inner wall of the box body (2) is rotatably connected to a receiving plate (3), a screen (4) is provided on the front side of the inner wall of the base (1), and the screen (4) is located at the bottom of the receiving plate (3), a support frame (6) is fixedly installed on the top of the box body (2), a hydraulic cylinder (7) is fixedly installed in the middle of the top of the support frame (6), the output end of the hydraulic cylinder (7) passes through the support frame (6) and is fixedly connected to a baffle (8), the back side of the baffle (8) is in contact with the front side of the receiving plate (3), and both sides of the back side of the baffle (8) are fixedly connected to a first rack (9), and the two second racks (9) are fixedly connected to the first racks (9). The outer wall of a rack (9) is meshedly connected with a gear (10), one end of each of the two gears (10) is rotatably connected to the inner wall of the box body (2), the other side of the outer wall of each of the two gears (10) is meshedly connected with a second rack (12), the bottom ends of the two second racks (12) are fixedly connected to the top of the receiving plate (3) via a connecting spring (13), the two second racks (12) and the receiving plate (3) are rotatably connected with a same damping rod, the middle of both sides of the inner wall of the box body (2) are provided with a slide groove (11), and the backs of the two second racks (12) are slidably connected to the inner walls of adjacent slide grooves (11).

2. A bulletproof ceramic sheet raw material screening device according to claim 1, characterized in that: A plurality of vibration springs (14) are symmetrically connected to both sides of the outer wall of the screen (4), connection grooves are provided on the front sides of both sides of the inner wall of the box body (2), one end of each of the plurality of vibration springs (14) is fixedly connected to the inside of an adjacent connection groove, and a vibrator (15) is installed on one side of the bottom end of the screen (4).

3. The bulletproof ceramic sheet raw material screening device according to claim 1, characterized in that: A material discharge box (5) is provided at the bottom of the screen (4), and the top end of the material discharge box (5) is slidably connected to the bottom end of the box body (2).

4. A bulletproof ceramic sheet raw material screening device according to claim 3, characterized in that: An extension frame (16) is fixedly installed at the bottom end of the box body (2), a hydraulic push rod (17) is fixedly installed in the middle of the front of the extension frame (16), and the output end of the hydraulic push rod (17) is fixedly connected to the back side of the unloading box (5).

5. A bulletproof ceramic sheet raw material screening device according to claim 4, characterized in that: A limiting groove (18) is provided in the middle of the front side of the top end of the base (1), and the bottom end of the material discharge box (5) is slidably connected to the inner wall of the limiting groove (18).

6. A bulletproof ceramic sheet raw material screening device according to claim 5, characterized in that: The two corners on the back of the box body (2) are fixedly connected with support columns, the bottom ends of the two support columns are fixedly connected to the top end of the base (1), and the lengths of the two support columns are consistent with the height of the unloading box (5).

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