Raw material crushing device for paper products

Abstract

The utility model discloses a raw material crushing device for paper products, which comprises a crushing part, the middle part of the bottom of the crushing part is fixedly connected with a sieving part, and the bottoms of four corners of the crushing part are fixedly provided with steel brackets positioned on the outer side of the sieving part; one side of the screening part is fixedly connected with a spiral conveying structure, the output end of the spiral conveying structure is connected with the top of the smashing part, the screening part comprises an outlet frame located below the smashing part, a screening plate is inserted into the front face of the outlet frame, and a conical hopper is fixedly installed at an outlet in one side of the outlet frame; a telescopic guide pipe is installed between one end of the conical hopper and the spiral conveying structure, and a pushing plate is placed at the top of the screening plate. Paper product raw materials with particles not meeting regulations after being smashed can be put into the smashing part again to be smashed repeatedly through the spring type telescopic rod, the pushing plate and the spiral conveying structure, and therefore the overall smashing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pulverizing devices, in particular to a raw material pulverizing device for paper products. Background Art

[0002] The main raw material for paper products is wood, including coniferous wood and hardwood wood. In addition, the raw materials for paper products also include waste paper and plant fibers such as bamboo. Wood usually goes through processes such as felling, peeling, cutting and pressing, and then uses a raw material crushing device to crush its large pieces of raw materials into small particles, and finally cooperates with other steps and processes to make paper products. After the paper product raw materials are put into the crushing device, they are usually crushed by a crushing roller and directly transported to the next process. However, the raw materials after a single crushing process may still contain large pieces, which can easily cause blockage of subsequent production lines, resulting in increased downtime and maintenance time, thereby reducing production efficiency and affecting the quality of the final product. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a paper product raw material pulverizing device to solve the problem of different sizes of raw material particles pulverized by some paper product raw material pulverizing devices mentioned in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a raw material pulverizing device for paper products, comprising a pulverizing part, a screening part is fixedly connected to the middle of the bottom of the pulverizing part, a steel bracket located outside the screening part is fixedly installed at the bottom of the four corners of the pulverizing part, and a spiral conveying structure whose output end is connected to the top of the pulverizing part is fixedly connected to one side of the sieving part;

[0005] The screening part includes an outlet frame located below the crushing part, a sub-screen plate is inserted into the front of the outlet frame, a conical bucket is fixedly installed at an outlet on one side of the outlet frame, and the bottom wall of the conical bucket is inclined downward, a telescopic guide tube is installed between one end of the conical bucket and the spiral conveying structure, a push plate is placed on the top of the sub-screen plate, a spring-type telescopic rod with one end fixedly connected to the surface of the push plate is inserted into the other side of the outlet frame, a rectangular telescopic tube is fixedly connected between the outlet frame and the crushing part, and a vibration motor is installed on the back of the outlet frame.

[0006] Preferably, the bottom wall of the conical hopper close to the outlet frame side is at the same height as the top of the sub-screen plate, and the lower half of the outlet frame is in the shape of a funnel.

[0007] Preferably, two upper and lower limit bars are fixedly mounted on the rear wall of the outlet frame, and the spacing between the two limit bars is consistent with the thickness of the sub-screen plate.

[0008] Preferably, a plurality of extension plates arranged front and rear are installed on both sides of the outlet frame, the top of the extension plate is fixedly connected with a spring structure, and the top of the spring structure is connected to the bottom of the crushing part.

[0009] Preferably, the crushing part comprises a protective shell, and two crushing rollers arranged front and back are rotatably mounted on the inner wall of the protective shell, and the teeth and grooves between the two crushing rollers are staggered with each other.

[0010] Preferably, driving structures are installed on both sides of the protective shell, and the output end of the driving structure is transmission-connected to the crushing roller, and a delivery nozzle is installed on the top of the protective shell.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, after the paper raw materials are pulverized by the pulverizing part, a vibration motor is equipped to shake the entire screening part, so that the raw materials with smaller particles fall directly down along the hole grooves on the sub-screen plate. After the initial pulverization is completed, the length of the fixed spring-type telescopic rod is stretched, and the larger particle raw materials reserved on the upper surface of the sub-screen plate are pushed into the conical bucket and the telescopic guide tube by using the push plate equipped therewith, and then they are put into the pulverizing part again with the cooperation of the spiral conveying structure, and repeated pulverization is performed to improve the pulverization effect of the paper raw materials.

[0013] 2. In the utility model, the limit strip made of magnetic material is used to firmly absorb the back side of the ferrous sub-screen plate, and when a forward pulling force is applied to the sub-screen plate, it can be pulled out, and then the sub-screen plate structure can be replaced relatively conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the installation structure of the outlet frame and the spring structure of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the screening part of the utility model.

[0018] In the figure: 1. Crushing part; 101. Protective shell; 102. Crushing roller; 103. Driving structure; 104. Feeding nozzle; 2. Screening part; 201. Outlet frame; 2011. Limiting strip; 202. Screening plate; 203. Conical bucket; 204. Telescopic guide tube; 205. Pushing plate; 206. Spring-type telescopic rod; 207. Rectangular telescopic tube; 208. Vibrating motor; 3. Steel bracket; 4. Screw conveying structure; 5. Spring structure. DETAILED DESCRIPTION

[0019] 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.

[0020] To solve the problem of different sizes of raw material particles after being crushed by some existing paper product raw material crushing devices, please refer to Figure 1-Figure 4 , an embodiment provided by the utility model:

[0021] A paper product raw material pulverizing device comprises a pulverizing part 1 for pulverizing paper product raw materials, a screening part 2 for distinguishing pulverized raw materials according to particle size is fixedly connected to the middle of the bottom of the pulverizing part 1, steel brackets 3 located outside the screening part 2 are fixedly installed at the bottom of the four corners of the pulverizing part 1 to stably support the pulverizing part 1, a spiral conveying structure 4 whose output end is connected to the top of the pulverizing part 1 is fixedly connected to one side of the screening part 2, and the partially pulverized raw materials are sent to the pulverizing part 1 again through the spiral conveying structure 4 in cooperation with the screening part 2;

[0022] Specifically, the screening part 2 includes an outlet frame 201 located below the crushing part 1, the lower half of the outlet frame 201 is in the shape of a funnel, a sub-screen plate 202 is plugged into the front of the outlet frame 201, and the sub-screen plate 202 can be pulled out from the inside of the outlet frame 201, so that the sub-screen plate 202 with different hole slot models can be replaced conveniently, a conical bucket 203 is fixedly installed at the outlet of one side of the outlet frame 201, and the bottom wall of the conical bucket 203 is inclined downward from one side close to the outlet frame 201 to the other side, and the bottom wall of the conical bucket 203 close to the outlet frame 201 is at the same height as the top of the sub-screen plate 202, and one end of the conical bucket 203 is connected to the spiral conveyor A telescopic guide tube 204 is installed between the structures 4 to facilitate the pouring of the pushed raw materials into the interior of the spiral conveying structure 4. A pushing plate 205 is placed on the top of the sub-screen plate 202. A spring-type telescopic rod 206 with one end fixedly connected to the surface of the pushing plate 205 is inserted on the other side of the outlet frame 201. A rectangular telescopic tube 207 is fixedly connected between the outlet frame 201 and the crushing part 1. The height of one end of the rectangular telescopic tube 207 close to the spiral conveying structure 4 is lower than that of the other end. A vibration motor 208 is installed on the back of the outlet frame 201. The vibration motor 208 is preferably a YZUL model, which has the advantages of low noise, low-frequency vibration and large-amplitude vibration.

[0023] Furthermore, the raw material of paper products is put into the crushing part 1 for crushing, and then falls down to the sub-screen plate 202 inside the space of the screening part 2, and the vibration motor 208 is operated to drive the entire screening part 2 to shake up and down below the crushing part 1, and the rectangular telescopic tube 207 fluctuates up and down under the force, thereby accelerating the falling rate of the part of the crushed raw material particles smaller than the diameter of the hole groove on the sub-screen plate 202, and the raw material after falling is directly discharged from the outlet at the bottom of the outlet frame 201. In actual use, a conveying structure can be provided at the bottom of the outlet frame 201 to directly convey the crushed particles that meet the crushing requirements to the outlet frame 201. The required raw materials are transferred to the next process, and the raw materials with larger particles are reserved on the upper surface of the sub-screen plate 202. After the crushing is completed, the spring-type telescopic rod 206 is adjusted to the longest state, and then a pushing force is applied to the spring-type telescopic rod 206 toward the side of the conical bucket 203 on one side of the device to push the larger particles of raw materials reserved on the upper surface of the sub-screen plate 202 into the conical bucket 203, so that they are transferred along the conical bucket 203 and the telescopic guide tube 204 to the inside of the spiral conveying structure 4, and then with the cooperation of the spiral conveying structure 4, they are put into the crushing part 1 again and crushed repeatedly until the requirements are met.

[0024] like Figure 4As shown, two upper and lower limit bars 2011 are fixedly installed on the rear wall of the outlet frame 201, and the spacing between the two limit bars 2011 is consistent with the thickness of the sub-sieve plate 202. The limit bar 2011 is made of a magnetic structure and is equipped with an iron sub-sieve plate 202. It can firmly absorb the rear end of the sub-sieve plate 202, ensuring that the sub-sieve plate 202 is stably and firmly installed, while making it easier to disassemble and replace.

[0025] like Figure 1 and Figure 3 As shown, a plurality of extension plates arranged front and back are installed on both sides of the outlet frame 201, and a spring structure 5 is fixedly connected to the top of the extension plate, and the top of the spring structure 5 is connected to the bottom of the crushing part 1, and the spring structure 5 is used to increase the connection between the crushing part 1 and the screening part 2. In addition, the spring structure 5 itself has a certain amount of elasticity and reset function, and can be synchronously extended and retracted with the rectangular telescopic tube 207 while the vibration motor 208 is running, effectively avoiding damage caused by excessive fluctuations of the rectangular telescopic tube 207.

[0026] like Figure 1 and Figure 2 As shown, the pulverizing part 1 includes a protective shell 101, and two crushing rollers 102 arranged front and back are rotatably installed on the inner wall of the protective shell 101, and the teeth and grooves between the two crushing rollers 102 are staggered with each other. Driving structures 103 are installed on both sides of the protective shell 101, and the output end of the driving structure 103 is transmission-connected with the crushing rollers 102. A delivery nozzle 104 is installed on the top of the protective shell 101. The driving structure 103 is composed of a stepping motor, a reducer, a belt and a wheel. The driving structure 103 is used to drive the crushing rollers 102 to rotate in a set direction, so as to grind the paper product raw material located between the two crushing rollers 102.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A paper product raw material pulverizing device, comprising a pulverizing part (1), characterized in that: The middle of the bottom of the crushing part (1) is fixedly connected to the screening part (2), the bottom of the four corners of the crushing part (1) are fixedly installed with steel brackets (3) located outside the screening part (2), and one side of the screening part (2) is fixedly connected to a spiral conveying structure (4) whose output end is connected to the top of the crushing part (1); The screening part (2) comprises an outlet frame (201) located below the crushing part (1), a sub-screening plate (202) is plugged into the front of the outlet frame (201), a conical bucket (203) is fixedly installed at one side outlet of the outlet frame (201), and the bottom wall of the conical bucket (203) is inclined downward, a telescopic guide tube (204) is installed between one end of the conical bucket (203) and the spiral conveying structure (4), a push plate (205) is placed on the top of the sub-screening plate (202), a spring-type telescopic rod (206) with one end fixedly connected to the surface of the push plate (205) is plugged into the other side of the outlet frame (201), a rectangular telescopic tube (207) is fixedly connected between the outlet frame (201) and the crushing part (1), and a vibration motor (208) is installed on the back of the outlet frame (201).

2. A paper product raw material pulverizing device according to claim 1, characterized in that: The bottom wall of the conical hopper (203) close to the outlet frame (201) is at the same height as the top of the sub-screening plate (202), and the lower half of the outlet frame (201) is in the shape of a funnel.

3. The paper product raw material pulverizing device according to claim 1, characterized in that: Two upper and lower limit bars (2011) are fixedly mounted on the rear wall of the outlet frame (201), and the spacing between the two limit bars (2011) is consistent with the thickness of the sub-screening plate (202).

4. A paper product raw material pulverizing device according to claim 1, characterized in that: A plurality of extension plates arranged front and back are installed on both sides of the outlet frame (201); the top of the extension plate is fixedly connected to a spring structure (5), and the top of the spring structure (5) is connected to the bottom of the crushing part (1).

5. The paper product raw material pulverizing device according to claim 1, characterized in that: The crushing part (1) comprises a protective shell (101), and two crushing rollers (102) arranged front and back are rotatably mounted on the inner wall of the protective shell (101), and the tooth grooves between the two crushing rollers (102) are staggered with each other.

6. A paper product raw material pulverizing device according to claim 5, characterized in that: A driving structure (103) is installed on both sides of the protective shell (101), and the output end of the driving structure (103) is transmission-connected to the crushing roller (102), and a delivery nozzle (104) is installed on the top of the protective shell (101).

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