Double fine crusher for EPS (Expandable Polystyrene) foam
By designing the EPS foam dual fine crusher, combined with the primary crushing mechanism and fine crushing mechanism, the existing foam crusher has been solved, and the effect of efficient fine crushing and low maintenance costs has been achieved.
Patent Information
- Application Number
- CN202421753672.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The existing foam crushers have complex structures, high maintenance costs, and insufficient crushing effect, making it difficult to meet the needs of subsequent processing.
An EPS foam double fine crusher is designed, which adopts a combination of the initial crushing mechanism and the fine crushing mechanism. The initial crushing mechanism achieves preliminary crushing through the parallel initial crushing shaft and the three-tooth blade, while the fine crushing mechanism achieves efficient fine crushing through the coordination of the lateral moving blade and the lateral fixed blade.
The efficient fine crushing of foam is achieved, the structure is simplified, the maintenance cost is reduced, and the fineness of the crushing can be adjusted by adjusting the distance of the blade, and the service life of the blade can be extended.
Smart Images
Figure CN222904609U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of foam processing equipment, in particular to an EPS foam double fine crusher. Background Technique
[0002] Nowadays, the annual output of plastic products in the world has exceeded 100 million tons. Calculated by volume, its output is higher than that of steel. Facing the production and accumulation of such a large-scale polymer material products, it means that a corresponding large amount of polymer material waste will be generated. And for these polymer material waste, they can often be recycled and remolded. Before the secondary utilization, it is necessary to crush these waste products. And for waste foam, it often needs to be crushed into a very small state for subsequent processing.
[0003] In order to improve the crushing efficiency, the existing foam crushers are provided with two-stage crushing mechanisms. The first-stage crushing mechanism uses two juxtaposed crushing rollers rotating in opposite directions to achieve the effect of preliminary crushing. The second-stage crushing mechanism uses crushing blades arranged in a staggered manner and rotating in opposite directions to achieve the shearing effect, so as to improve the crushing efficiency. However, this kind of crusher, on the one hand, has a complex structure and a high maintenance cost; on the other hand, although its crushing effect is better than that of traditional crushers, it still cannot reach a very fine state, which is not conducive to subsequent processing. Therefore, the technical personnel in this field provide an EPS foam double fine crusher to solve the problems put forward in the above background technique. Summary of the Invention
[0004] The purpose of the utility model is to provide an EPS foam double fine crusher to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the technical solution adopted by the utility model is: It includes a primary crushing mechanism, a feeding port, a fine crushing mechanism and a discharging port; the feeding port is connected to the upper end of the primary crushing mechanism, and one side of the primary crushing mechanism is connected with the fine crushing mechanism; the fine crushing mechanism includes a fine crushing box body, a fine crushing shaft, a triangular block, a mounting plate, a transverse moving blade, a fixed knife support, a transverse fixed blade, a fine crushing motor, a pulley and a fine screen; the fine crushing shaft is installed in the fine crushing box body, and a number of triangular blocks are equidistantly installed on the outer circumference of the fine crushing shaft. The mounting plate is fixed at the three corners of a number of triangular blocks. The transverse moving blade is fixed on the mounting plate. The inner side walls of the fine crushing box body are respectively fixed with fixed knife supports, and transverse fixed blades are fixed on each side of the fixed knife supports. The output end of the fine crushing motor is installed with a pulley, and the shaft end of the fine crushing shaft is also installed with a pulley. The two pulleys are connected by a belt in transmission. A fine screen is arranged below the triangular block. The fine screen is fixed on the inner wall of the fine crushing box body, and the bottom outside of the fine crushing box body is connected with the discharging port.
[0006] Further, the primary crushing mechanism includes a primary crushing box body, a primary crushing shaft, three-tooth blades, a primary crushing reduction motor, and a coarse screen; two parallel primary crushing shafts are installed in the primary crushing box body, three-tooth blades are equidistantly installed on the two primary crushing shafts respectively, and the three-tooth blades on the two primary crushing shafts are arranged in a staggered manner. The shaft ends of the two primary crushing shafts are respectively connected with a primary crushing reduction motor. A coarse screen is arranged below the three-tooth blades, and the coarse screen is fixed on the inner wall of the primary crushing box body.
[0007] Further, a first kidney-shaped adjustment hole is arranged on the transverse moving blade, and the transverse moving blade is fixed to the mounting plate through a screw passing through the first kidney-shaped adjustment hole.
[0008] Further, a second kidney-shaped adjustment hole is arranged on the transverse fixed blade, and the transverse fixed blade is fixed to the fixed blade support through a screw passing through the second kidney-shaped adjustment hole.
[0009] Further, a guide plate is arranged below the fine screen, and the end of the guide plate is connected to the discharge port.
[0010] After adopting the above structure, the beneficial effects of the present utility model are as follows: The EPS foam double fine crusher of the present utility model adopts the cooperation of a transverse fixed blade and a transverse moving blade. When the transverse moving blade rotates at a high speed, the foam is driven accordingly. When passing through the transverse fixed blade, the foam is cut into pieces by the fixed blade and the moving blade. Since both the fixed blade and the moving blade are of a transverse integral design, not only the structure is simplified, but also the contact opportunity between the foam and the blade is increased, and the crushing efficiency is higher. By adjusting the distance between the transverse fixed blade and the transverse moving blade, the fineness of the foam crushing can be adjusted, and the fineness requirement can still be met when the blade is worn, thus extending the service life of the blade and reducing the maintenance cost. Description of the Drawings
[0011] Figure 1 is an exploded view of the present utility model;
[0012] Figure 2 is a structural diagram of the fine crushing mechanism of the present utility model;
[0013] Figure 3 is Figure 2 a side view of
[0014] Figure 4 is Figure 3 an enlarged view of part A in
[0015] Description of the Reference Numerals:
[0016] Primary crushing mechanism 1, primary crushing box body 11, primary crushing shaft 12, three-tooth blade 13, primary crushing reduction motor 14, coarse screen 15, feed inlet 2, fine crushing mechanism 3, fine crushing box body 31, fine crushing shaft 32, triangular block 33, mounting plate 34, transverse moving blade 35, fixed knife support 36, transverse fixed blade 37, fine crushing motor 38, pulley 39, fine screen 310, first kidney-shaped adjustment hole 311, second kidney-shaped adjustment hole 312, material guide plate 313, discharge port 4. Specific implementation mode
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0018] See as Figure 1 —— Figure 4 As shown, the specific implementation mode adopts the following technical solutions: It includes a primary crushing mechanism 1, a feed inlet 2, a fine crushing mechanism 3 and a discharge port 4; the feed inlet 2 is connected to the upper end of the primary crushing mechanism 1, and the primary crushing mechanism 1 includes a primary crushing box body 11, a primary crushing shaft 12, a three-tooth blade 13, a primary crushing reduction motor 14 and a coarse screen 15; two parallel primary crushing shafts 12 are installed in the primary crushing box body 11, three-tooth blades 13 are equidistantly installed on the two primary crushing shafts 12 respectively, and the three-tooth blades 13 on the two primary crushing shafts 12 are arranged in a staggered manner. The shaft ends of the two primary crushing shafts 12 are respectively connected with a primary crushing reduction motor 14. A coarse screen 15 is arranged below the three-tooth blade 13, and the coarse screen 15 is fixed on the inner wall of the primary crushing box body 11. The two primary crushing shafts 12 are respectively driven by the primary crushing reduction motor 14 to rotate in opposite directions. Therefore, the three-tooth blades 13 on the two primary crushing shafts 12 rotate in opposite directions. The foam entering the primary crushing box body 11 from the feed inlet 2 is cut into a coarsely crushed state by the three-tooth blades 13. The foam meeting the fineness is screened out from the coarse screen 15, and the foam not meeting the fineness still stays in the primary crushing box body 11 and is continuously crushed.
[0019] On one side of the primary crushing mechanism 1, there is a secondary crushing mechanism 3 connected. The secondary crushing mechanism 3 includes a secondary crushing box body 31, a secondary crushing shaft 32, triangular blocks 33, a mounting plate 34, transverse moving blades 35, a fixed knife support 36, transverse fixed blades 37, a secondary crushing motor 38, belt pulleys 39, and a fine screen 310. The secondary crushing shaft 32 is installed inside the secondary crushing box body 31. A number of triangular blocks 33 are equidistantly installed on the outer circumference of the secondary crushing shaft 32. The mounting plate 34 is fixed at three corners of several triangular blocks 33. The transverse moving blade 35 is provided with a first waist-shaped adjustment hole 311. The transverse moving blade 35 is fixed to the mounting plate 34 by screws passing through the first waist-shaped adjustment hole 311. Fixed knife supports 36 are respectively fixed on the inner side walls of the secondary crushing box body 31. The transverse fixed blade 37 is provided with a second waist-shaped adjustment hole 312. The transverse fixed blade 37 is fixed to the fixed knife support 36 by screws passing through the second waist-shaped adjustment hole 312. The output end of the secondary crushing motor 38 is installed with a belt pulley 39, and the shaft end of the secondary crushing shaft 32 is also installed with a belt pulley 39. The two belt pulleys 39 are connected by belt drive. A fine screen 310 is arranged below the triangular blocks 33. The fine screen 310 is fixed to the inner wall of the secondary crushing box body 31. The coarsely crushed foam screened out by the coarse screen 15 enters the secondary crushing box body 31. The secondary crushing motor 38 drives the belt pulley 39 to rotate. Through belt drive, it drives the secondary crushing shaft 32 to rotate at a high speed, thereby driving the triangular blocks 33 and the mounting plate 34 to rotate at a high speed, and further driving the transverse moving blades 35 on the mounting plate 34 to rotate at a high speed. At the same time, the coarsely crushed foam is driven by the transverse moving blades 35 and cooperates with the transverse fixed blades 37 when passing through them to achieve the secondary crushing of the foam. Since both the transverse moving blades 35 and the transverse fixed blades 37 are of a transverse integral design, it not only simplifies the structure but also increases the chance of the foam contacting the blades, and the crushing efficiency is higher. By adjusting the position of the screws on the first waist-shaped adjustment hole 311, the installation position of the transverse moving blade 35 can be adjusted. By adjusting the position of the screws on the second waist-shaped adjustment hole 312, the installation position of the transverse fixed blade 37 can be adjusted. Thus, the distance between the transverse moving blade 35 and the transverse fixed blade 37 can be adjusted, the fineness of the foam crushing can be adjusted, and it can also meet the fineness requirements when the blades are worn, extending the service life of the blades and reducing the maintenance cost.
[0020] A material guiding plate 313 is arranged below the fine screen 310. The end of the material guiding plate 313 is connected to the discharge port 4. The material guiding plate 313 is fixed to the bottom of the secondary crushing box body 31. The discharge port 4 is fixed to the outer side of the bottom of the secondary crushing box body 31. The foam meeting the fineness is screened out from the fine screen 310 and guided to the discharge port 4 through the material guiding plate 313. A blower is connected at the discharge port 4, and the finely crushed foam can be discharged.
[0021] The working principle of the present utility model is as follows: Large pieces of foam enter the primary crushing box body 11 from the feed inlet 2 and are cut into a coarsely crushed state by the three-tooth blades 13. The foam meeting the fineness is screened out from the coarse screen 15 and enters the fine crushing box body 31, while the foam not meeting the fineness remains in the primary crushing box body 11 and is continuously crushed; the coarsely crushed foam that reaches the fine crushing box body 31 is efficiently finely crushed by the transverse moving blade 35 driven by the fine crushing motor 38 to the transverse fixed blade 37 while the transverse moving blade 35 rotates at a high speed. The foam meeting the fineness is screened out from the fine screen 310 and collected at the discharge port 4.
[0022] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. EPS foam double fine crusher, characterized by: It comprises a primary crushing mechanism, a feed port, a fine crushing mechanism and a discharge port; the feed port is connected to the upper end of the primary crushing mechanism, and one side of the primary crushing mechanism is connected to the fine crushing mechanism; the fine crushing mechanism comprises a fine crushing box, a fine crushing shaft, a triangular block, a mounting plate, a transverse movable blade, a fixed blade bracket, a transverse fixed blade, a fine crushing motor, a pulley and a fine screen; the fine crushing shaft is installed in the fine crushing box, a plurality of triangular blocks are equidistantly installed on the outer circumference of the fine crushing shaft, the mounting plate is fixed at three corners of the plurality of triangular blocks, a transverse movable blade is fixed on the mounting plate, the inner side walls of the fine crushing box are respectively fixed with fixed blade brackets, a transverse fixed blade is fixed on the fixed blade bracket on each side, a pulley is installed at the output end of the fine crushing motor, a pulley is also installed at the shaft end of the fine crushing shaft, the two pulleys are connected by belt transmission, a fine screen is arranged below the triangular block, the fine screen is fixed to the inner wall of the fine crushing box, and the discharge port is connected to the outer side of the bottom of the fine crushing box.
2. The EPS foam double fine crusher according to claim 1, characterized in that: The primary crushing mechanism comprises a primary crushing box, a primary crushing shaft, a three-tooth blade, a primary crushing reduction motor and a coarse screen; two parallel primary crushing shafts are installed in the primary crushing box, three-tooth blades are equidistantly installed on the two primary crushing shafts, and the three-tooth blades on the two primary crushing shafts are staggered, the shaft ends of the two primary crushing shafts are respectively connected to the primary crushing reduction motors, a coarse screen is arranged below the three-tooth blades, and the coarse screen is fixed to the inner wall of the primary crushing box.
3. The EPS foam double fine crusher according to claim 1, characterized in that: The transverse movable blade is provided with a first waist-shaped adjustment hole, and the transverse movable blade is fixed to the mounting plate by screws passing through the first waist-shaped adjustment hole.
4. The EPS foam double fine crusher according to claim 1, characterized in that: The transverse fixed blade is provided with a second waist-shaped adjustment hole, and the transverse fixed blade is fixed to the fixed blade bracket by screws passing through the second waist-shaped adjustment hole.
5. The EPS foam double fine crusher according to claim 1, characterized in that: A material guide plate is arranged below the fine screen, and the end of the material guide plate is connected to the discharge port.