A closed-type pulverizer for pig feed processing

Abstract

The utility model relates to feed production and processing technical field, concretely disclose a closed type rubbing crusher for pig feed processing, including frame, the feed bin, rubbing bin and discharge bin that are sequentially arranged on the frame from top to bottom, the feed bin side wall is equipped with the feed inlet, is equipped with the shielding subassembly at the feed inlet, and the shielding subassembly includes a plurality of hinged doors that hinge in the top of feed inlet, the sealing door that hinges in the inside of feed bin, the hinged door includes a plurality of hinge door board that set up in sequence, forms the gap between adjacent hinge door board, the sealing door includes a plurality of sealing door board that correspond to the position of gap respectively, still include the motor that sets up on the frame and the rubbing roller that rotates and is connected in rubbing bin, and rubbing roller mutually engages and is driven by the motor, solved the traditional influence feed rubbing process, the problem that dust is easy to enter rubbing crusher inside and influence feed product quality.

Description

Technical Field

[0001] This application relates to the field of feed production and processing technology, and specifically discloses a closed-type pulverizer for processing pig feed. Background Technology

[0002] In the production and processing of pig feed, grinding raw materials such as corn and soybean meal is a crucial preliminary step. The particle size of the ground raw materials directly affects the uniformity of feed mixing, pelleting effect, digestibility and absorption rate of livestock and poultry, and the final quality of the finished product. Currently, most feed processing companies in the industry use bite-type grinders for raw material grinding, and their feeding method is generally open-top feeding.

[0003] While open-type crushers offer advantages such as simple structure, convenient and quick feeding, and easy observation of the feed flow, they exhibit significant drawbacks in actual production. Firstly, the complex environment of feed production workshops, with its high levels of airborne dust and strong vibrations generated during high-speed operation, makes it easy for external impurities, such as dust accumulated on the workshop ceiling and loose screws and nuts on equipment parts, to fall into the crusher through the open feed inlet. These impurities not only contaminate the raw materials and mix into the final product, affecting feed quality and safety, but also accelerate the wear and tear on the crushing rollers, screens, and other working parts inside the crusher, shortening its lifespan. Simultaneously, the influx of large amounts of dust places an additional burden on the crusher's dust collection system, potentially leading to decreased efficiency or even blockage, impacting the continuity and stability of production.

[0004] To alleviate the above problems, some crushers have installed simple protective structures at the feed inlet, mainly hinged doors above the feed inlet. Currently, there are two main types of hinged doors: one is a single-leaf hinged door, which consists of a single, large door panel. This structure has significant drawbacks: due to the large size of the feed inlet, the single-leaf door panel is prone to bending and deformation under frequent material impacts and its own weight. Once deformed, a large gap will appear between the door panel and the feed inlet frame, significantly reducing its sealing and barrier effect, and the problem persists. Furthermore, replacing the entire large door panel is costly.

[0005] Another type is the hinged door composed of multiple small panels arranged side by side. While this design reduces the size of a single door panel to some extent and lowers the risk of panel deformation, it introduces new problems. With multiple door panels hinged side-by-side, the gaps between adjacent panels are relatively large during operation, and these gaps are constantly changing, making it easy for material particles to get trapped. This accelerates wear at the joints, causing the gaps to widen further, and similarly, it cannot effectively block dust and fine impurities.

[0006] It is evident that current pulverizers used in pig feed production and processing suffer from defects such as easy deformation of single-leaf doors and large gaps in multi-leaf doors, which allow dust to easily enter the pulverizer and affect the quality of the finished feed. In view of this, this utility model provides a closed pulverizer for pig feed processing to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to solve the problem that dust easily enters the grinder during the traditional feed grinding process, thus affecting the quality of the finished feed.

[0008] To achieve the above objectives, the basic solution of this utility model provides a closed-type crusher for pig feed processing, including a frame, a feeding bin, a crushing bin, and a discharging bin arranged sequentially from top to bottom on the frame; The side wall of the feeding hopper is provided with a feeding port, and a shielding assembly is provided at the feeding port. The shielding assembly includes several hinged doors hinged to the top of the feeding port and a sealing door hinged inside the feeding hopper. The hinged doors include several hinged door panels arranged in sequence, with gaps formed between adjacent hinged door panels. The sealing door includes several sealing door panels that correspond to the positions of the gaps respectively. It also includes a motor mounted on the frame and crushing rollers rotatably connected inside the crushing chamber, the crushing rollers interlocking and being driven by the motor. Furthermore, the hinged door also includes a hinged door shaft horizontally disposed at the top of the feed inlet, and hinged door sleeves respectively fitted onto the hinged door shaft, with the hinged door panels respectively disposed on each hinged door sleeve; The sealing door also includes a sealing door shaft located at the top of the feed hopper, sealing door sleeves respectively fitted onto the sealing door shaft, and sealing door plates respectively provided on each sealing door sleeve.

[0009] Furthermore, torsion springs are provided between the hinged door sleeve and the hinged door hinge, and between the sealed door sleeve and the sealed door hinge.

[0010] Furthermore, each of the sealing door panels is provided with a sealing door gasket on the side near the hinged door panel, and the width of the sealing door gasket is greater than the width of the gap.

[0011] Furthermore, the shielding assembly also includes a baffle located at the bottom of the feed inlet, the highest point of the baffle being higher than the lowest point of the hinged door panel, and when the hinged door panel is in a vertical position, the bottom of the hinged door panel is in contact with the inner wall of the baffle.

[0012] Furthermore, the baffle includes a limiting plate and a mounting plate located on the side of the limiting plate. The mounting plate is provided with a magnetic component, and the bottom of both the hinged door panel and the sealing door panel is provided with an iron column that is magnetically attracted by the magnetic component.

[0013] Furthermore, the magnetic component is a magnetic rod or an electromagnet.

[0014] Furthermore, both the hinged door panel and the sealing door panel have protrusions on their bottom sides, and the surfaces of the protrusions are provided with anti-collision pads.

[0015] Furthermore, the iron pillar is inserted into the protrusion.

[0016] The principle and effect of this solution are as follows: 1. The multi-piece independently designed hinged door disperses the impact force over a large area onto each hinged door panel during feeding, greatly reducing the stress on each individual hinged door panel and fundamentally preventing bending and deformation. Simultaneously, the gaps between adjacent hinged door panels effectively reduce wear and prevent collisions, avoiding positional deviations during resetting. Furthermore, the sealed door panels cover the gaps, preventing dust and impurities from the workshop environment from falling into the crusher, significantly reducing the burden on the subsequent dust removal system and ensuring the quality of the finished feed product.

[0017] 2. The weight of the sealing door is transferred to the hinged door through the sealing gasket, providing an outward restoring torque for the hinged door. This forms a sealing structure in which the hinged door, sealing door, and baffle cooperate with each other, further improving the sealing performance at the feed inlet. This effectively overcomes the defects of existing single-leaf doors being prone to deformation and multi-leaf doors having large gaps. While ensuring smooth feeding, it achieves reliable isolation of external impurities and dust, thereby reducing the pressure on the subsequent dust removal system and ensuring the quality of feed products and the stable operation of production equipment.

[0018] 3. The use of magnetic components and iron pillars to form a flexible dynamic seal: During feeding, the feeding tool and material can easily break through this magnetic adsorption; during resetting, the magnetic force can ensure that the door panel accurately returns to the sealed position, effectively avoiding the problem of the bottom gap of the hinged door of the traditional crusher becoming larger due to wear and tear after long-term use.

[0019] 4. The protrusions facilitate contact between the hinged door panel and the sealing door panel, allowing the weight of the sealing door panel to press against the hinged door panel. They also provide a better installation environment for the iron pillars inserted into the hinged door panel and the sealing door panel.

[0020] 5. Torsion springs can assist in the reset of hinged door panels and sealing door panels, further improving their reset and sealing performance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A front view schematic diagram of a closed-type pulverizer for pig feed processing according to an embodiment of this application is shown; Figure 2 A rear view schematic diagram of a closed-type pulverizer for pig feed processing according to an embodiment of this application is shown; Figure 3 A partial structural cross-sectional view of a closed-type pulverizer for pig feed processing, according to an embodiment of this application, is shown. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] The reference numerals in the accompanying drawings of the instruction manual include: frame 1, feed bin 2, crushing bin 3, discharge bin 4, motor 5, hinged door 6, hinged door shaft 601, hinged door sleeve 602, hinged door panel 603, sealing door 7, sealing door shaft 701, sealing door sleeve 702, sealing door panel 703, sealing door gasket 704, baffle 8, limit plate 801, mounting plate 802, mounting cavity 803, discharge hopper 9, iron column 10.

[0025] A closed-type pulverizer for processing pig feed, implementing, for example... Figure 1 and Figure 2 As shown: The machine includes a frame 1, and from top to bottom, a feeding bin 2, a crushing bin 3, and a discharging bin 4, all mounted on the frame 1. The feeding bin 2, crushing bin 3, and discharging bin 4 are interconnected. The feeding bin 2 has symmetrical feed inlets on both sides, with shielding components at the inlets to allow raw materials such as corn and soybean meal to enter the crushing bin 3 for crushing. The crushing bin 3 is used to crush raw materials such as corn and soybean meal. It contains two interlocking crushing rollers, driven by two motors 5 located on either side of the crushing bin 3. The motors 5 are mounted on the frame 1 and drive the crushing rollers to rotate symmetrically via reducers. The bottom of the discharging bin 4 is inclined, and a discharge hopper 9 is located at its bottom to collect and discharge the crushed material.

[0026] like Figure 3As shown, the shielding assembly includes a hinged door 6 located at the feed inlet, a sealing door 7 located inside the feed inlet, and a baffle 8 located at the bottom of the feed inlet. The hinged door 6 includes a hinged door shaft 601 horizontally disposed at the top of the feed inlet, hinged door sleeves 602 sequentially sleeved on the hinged door shaft 601, and hinged door plates 603 disposed on each hinged door sleeve 602. A gap is formed between adjacent hinged door plates 603 to reduce wear, and at the same time, it can prevent adjacent hinged door plates 603 from colliding with each other, avoiding positional deviation of the hinged door plates 603 during the reset process.

[0027] The sealing door 7 includes a sealing door shaft 701 located at the top of the feed hopper 2, sealing door sleeves 702 sequentially fitted onto the sealing door shaft 701, sealing door plates 703 respectively provided on each sealing door sleeve 702, and sealing gaskets respectively provided on the side of the sealing door plate 703 facing the hinged door plate 603. The positions of the sealing door plates 703 and sealing gaskets 704 are adapted to the gaps between adjacent hinged door plates 603, and the width of the sealing door plates 703 and sealing gaskets 704 is greater than the gap width. By sealing the gaps between adjacent hinged door plates 603 with the sealing gaskets 704, particulate matter can be effectively prevented from entering the feed hopper 2, thereby improving the isolation effect of dust and other fine impurities. At the same time, the gravity of the sealing door plates 703 and the sealing door 7 itself can promote the reset of the hinged door 6.

[0028] The baffle 8 is located at the bottom of the feed inlet. The highest point of the baffle 8 is higher than the lowest point of the hinged door panel 603. When the hinged door panel 603 is in a vertical position under its own weight, the bottom of the hinged door panel 603 is in contact with the inner wall of the baffle 8.

[0029] During operation, the feeding tool impacts the hinged door panel 603, causing it to open inward and form a feeding channel. Multiple independently designed hinged doors 6 distribute the large-area impact force across each hinged door panel 603, significantly reducing the stress on each individual hinged door panel 603 and fundamentally preventing bending deformation. After feeding is complete, the sealing door panel 703 naturally droops under its own weight, causing its sealing gasket to tightly press against the back of the gap in the hinged door panel 603. Because its width is greater than the gap width, complete coverage is achieved. During this process, the weight of the sealing door panel 703 is transferred to the hinged door 6 through the sealing gasket, providing an outward restoring torque for the hinged door 6. This forms a sealing structure where the hinged door 6, sealing door panel, and baffle 8 cooperate, ensuring that dust and impurities from the workshop environment cannot fall into the crusher, greatly reducing the burden on the subsequent dust removal system and guaranteeing the quality of the finished feed.

[0030] This embodiment can effectively overcome the shortcomings of existing single-leaf doors that are prone to deformation and multi-leaf doors that have large gaps. While ensuring smooth feeding, it can reliably isolate external impurities and dust, thereby reducing the pressure on the subsequent dust removal system and ensuring the quality of feed products and the stable operation of production equipment.

[0031] In one possible embodiment, the baffle 8 includes a limiting plate 801 and a mounting plate 802. The mounting plate 802 has a mounting cavity 803, in which a magnetic component, such as a magnetic rod or electromagnet, is installed. Holes are formed at the bottom of the hinged door panel 603 and the bottom of the sealing door panel 703. Iron pillars 10 attracted by magnets or electromagnets are installed in these holes by insertion. This improves the tightness of the fit between the hinged door panel 603, the sealing door panel 703, and the baffle 8, reducing the gap between the hinged door panel 603 and the baffle 8.

[0032] The magnetic components work together with the iron pillar 10 to form a flexible dynamic seal: during feeding, the feeding tool and the material can easily break through this magnetic adsorption; during resetting, the magnetic force can ensure that the door panel accurately returns to the sealed position, effectively avoiding the problem of the bottom gap of the hinged door 6 of traditional crushers becoming larger due to wear and tear after long-term use.

[0033] In one possible embodiment, protrusions are provided on the bottom back side of the hinged door panel 603 and the bottom front side of the sealing door panel 703. Anti-collision pads are provided on the surface of the protrusions, facilitating contact between the hinged door panel 603 and the sealing door panel 703. This allows the weight of the sealing door panel 703 to press against the hinged door panel 603, causing it to reset. Simultaneously, the two protrusions also provide a better installation environment for the iron pillars 10 inserted into the hinged door panel 603 and the sealing door panel 703.

[0034] In one possible embodiment, torsion springs are provided between the hinge door sleeve 602 and the hinge door hinge 601, and between the sealing door sleeve 702 and the sealing door hinge 701, to assist the hinge door panel 603 and the sealing door panel 703 in resetting, thereby further improving the resetting performance and sealing performance of the hinge door panel 603 and the sealing door panel 703.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A closed-type pulverizer for processing pig feed, characterized in that: It includes a frame, a feed bin, a crushing bin, and a discharge bin arranged sequentially from top to bottom on the frame; The side wall of the feeding hopper is provided with a feeding port, and a shielding assembly is provided at the feeding port. The shielding assembly includes several hinged doors hinged to the top of the feeding port and a sealing door hinged inside the feeding hopper. The hinged doors include several hinged door panels arranged in sequence, with gaps formed between adjacent hinged door panels. The sealing door includes several sealing door panels that correspond to the positions of the gaps respectively. It also includes a motor mounted on the frame and a crushing roller rotatably connected inside the crushing chamber, the crushing rollers interlocking and being driven by the motor.

2. The enclosed pulverizer for pig feed processing according to claim 1, characterized in that, The hinged door also includes a hinged door shaft horizontally disposed at the top of the feed inlet, and hinged door sleeves respectively fitted onto the hinged door shaft, with the hinged door panels respectively disposed on each hinged door sleeve; The sealing door also includes a sealing door shaft located at the top of the feed hopper, sealing door sleeves respectively fitted onto the sealing door shaft, and sealing door plates respectively provided on each sealing door sleeve.

3. The enclosed pulverizer for pig feed processing according to claim 2, characterized in that, Torsion springs are provided between the hinged door frame and the hinged door hinge, and between the sealed door frame and the sealed door hinge.

4. A closed-type pulverizer for pig feed processing according to claim 2, characterized in that, Each of the sealing door panels is provided with a sealing door gasket on the side near the hinged door panel, and the width of the sealing door gasket is greater than the width of the gap.

5. A closed-type pulverizer for pig feed processing according to any one of claims 1-4, characterized in that, The shielding assembly also includes a baffle located at the bottom of the feed inlet. The highest point of the baffle is higher than the lowest point of the hinged door panel, and when the hinged door panel is in a vertical position, the bottom of the hinged door panel is in contact with the inner wall of the baffle.

6. A closed-type pulverizer for pig feed processing according to claim 5, characterized in that, The baffle includes a limiting plate and a mounting plate located on the side of the limiting plate. The mounting plate is equipped with a magnetic component. The bottom of both the hinged door panel and the sealing door panel is equipped with an iron column that is magnetically attracted by the magnetic component.

7. A closed-type pulverizer for pig feed processing according to claim 6, characterized in that, The magnetic component is a magnetic rod or an electromagnet.

8. A closed-type pulverizer for pig feed processing according to claim 6 or 7, characterized in that, Both the hinged door panel and the sealing door panel have protrusions on their bottom sides, and the surfaces of the protrusions are provided with anti-collision pads.

9. A closed-type pulverizer for pig feed processing according to claim 8, characterized in that, The iron pillar is inserted into the protrusion.

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