A screening device for producing a chili product

Abstract

The utility model provides a kind of screening device for chili product production, solve the screen of chili screening device usually by bolt and rigidly fixed in the inside of sieve box structure, replacement step is complicated, the problem of influence production efficiency. The utility model is by adopting the sliding installation structure of U-shaped guide rail and frame screen cooperation, and supplemented by baffle and fixed plate adopt the mode of bolt fastening, solve the technical problem that traditional screen replacement process is complicated, time-consuming and laborious, influence production efficiency, realize the quick loading and unloading of frame screen, greatly shorten the equipment downtime maintenance time, improve production efficiency, avoid the operator to enter equipment internal operation simultaneously, improve operation safety and convenience, reduce labor intensity, and ensure the rigidity and sealing of screen under working condition, ensure the stability and reliability of screening process.

Description

Technical Field

[0001] This utility model relates to the field of chili product manufacturing technology, and in particular to a screening device for chili product manufacturing. Background Technology

[0002] In the refined production process of chili products (such as chili powder and chili flakes), sieving is a core step that affects the final product's taste and quality. Modern advanced production processes reveal that the presence of chili seeds significantly impacts the finished product's flavor, thus requiring their effective removal before processing. This process typically involves two key sieving stages: First, after cleaning and drying the dried chilies, the stems are removed, and the chilies are cut into several pieces. At this stage, the uncrushed chili pieces are sieved to remove heavy impurities such as stones, sand, and metal fragments. Then, the pre-sieved chili pieces are crushed, and the crushed chili powder is sieved again to separate the chili seeds.

[0003] As a core component that comes into direct contact with the material, the performance of the screen is crucial. However, chili peppers are high in oil and prone to sticking, making the screen highly susceptible to clogging and wear during production. This leads to a sharp decline in screening efficiency and unstable product quality. Therefore, the screen needs to be cleaned, inspected, or replaced frequently. Furthermore, the required mesh size differs between the two processes of removing impurities and seeds from the chili peppers, necessitating the use of different screen specifications depending on the stage of the process.

[0004] The screens of existing chili screening devices are usually rigidly fixed inside the screen box by bolts and pressure plate structure. When replacing them, the operator must stop the machine, turn off the power and enter the narrow screen box to carry out a long disassembly operation with tools. This process is not only time-consuming and labor-intensive, but also affects production efficiency. Utility Model Content

[0005] In order to solve the problem that the screen of the chili screening device in the background technology is usually rigidly fixed inside the screen box by bolts and pressure plate structure, which makes the replacement process cumbersome and affects the production efficiency, this utility model proposes a screening device for chili product production.

[0006] The technical solution of this utility model is: a screening device for chili product production, including a screen box, which is a strip-shaped box structure that is inclined from top to bottom and from left to right. A vibration motor is provided on the screen box, and a support is provided at the bottom of the screen box. Two mounting seats are provided on the front and rear sides of the screen box, which are spaced apart from each other. The mounting seats on the screen box are elastically connected to the support through vibration springs. The screen box is equipped with at least one framed screen arranged along its extension direction. A U-shaped guide rail is fixedly installed on the inner wall of the screen box. The framed screen is slidably embedded in the U-shaped guide rail through the screen frame on its edge. An installation opening corresponding to the framed screen is opened on the side wall of the screen box. One end of the framed screen passes through the installation opening and is fixedly connected to a baffle. The baffle is fixedly connected to the outer wall of the screen box by a detachable fastener.

[0007] Preferably, there are two framed screens, which are arranged in the screen box with an upper and lower spacing, and the mesh size of the upper framed screen is larger than that of the lower framed screen.

[0008] Preferably, a sealing ring is provided between the contact surface between the baffle and the outer wall of the left end of the screen box. The sealing ring is annular and is fixedly embedded on the outer wall of the left end of the screen box, surrounding the periphery of the installation opening.

[0009] Preferably, a pull ring is fixedly provided on the baffle.

[0010] Preferably, the fasteners include bolts and nuts. The two ends of the baffle extend outward from the screen box and are provided with first bolt holes. Two outwardly extending fixing plates are fixed at the front and rear edges of the left end of the screen box. Bolts pass through the first bolt holes and the second bolt holes and are locked with nuts.

[0011] Preferably, the bottom of the screen box is fixedly connected to and communicates with a collection box, the vibration motor is fixedly installed on the side wall of the collection box, the collection box is a conical structure with a horizontal diameter that gradually decreases from top to bottom, a discharge hole is opened on one side of the bottom of the collection box, and a hole cover is hinged at the discharge hole of the collection box.

[0012] Preferably, the top of the screen box is provided with a box cover, and the box cover is provided with a feed hopper that communicates with the inside of the screen box.

[0013] Preferably, a centrifugal fan is provided in front of the sieve box. The centrifugal fan is fixed on the ground by a base frame, and the air inlet of the centrifugal fan is connected to the side wall of the collection box through a connecting pipe.

[0014] Preferably, a corrugated flexible hose is connected in series on the connecting pipe.

[0015] Preferably, a filter screen is provided at the connection between the sieve box and the collection box.

[0016] Advantages of this utility model: (1) This utility model adopts a sliding installation structure that combines a U-shaped guide rail with a framed screen, and uses a bolt-fastened baffle and fixing plate to solve the technical problem of the traditional screen replacement process being cumbersome, time-consuming, labor-intensive, and affecting production efficiency. It realizes the quick loading and unloading of the framed screen, greatly shortens the equipment downtime maintenance time, improves production efficiency, avoids operators from entering the equipment, improves operational safety and convenience, reduces labor intensity, and ensures the rigidity and sealing of the screen in working condition, ensuring the stability and reliability of the screening process.

[0017] (2) This utility model achieves static sealing by setting a box cover and setting a centrifugal fan connected to the sieve box and the collection box to form a stable negative pressure inside the sieve box, ensuring that dust can only be sucked in and cannot be dispersed out, thus improving the workshop working environment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Another perspective structural diagram; Figure 3 This utility model Figure 1 Side sectional view of the intermediate sieve box; Figure 4 This utility model Figure 1 A cross-sectional view of the structure of the intermediate sieve box; Figure 5 This utility model Figure 2 Exploded view of the structure of the framed screen and U-shaped guide rail; Figure 6 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Screen box; 101. Feed hopper; 102. Mounting base; 103. Vibration spring; 2. Bracket; 3. Framed screen; 301. Screen plate; 302. Screen frame; 303. Baffle; 304. Pull ring; 4. First discharge hopper; 5. Second discharge hopper; 6. Collection box; 601. Hole cover; 7. U-shaped guide rail; 8. Fixing plate; 9. Sealing ring; 10. Box cover; 11. Centrifugal fan; 12. Connecting pipe; 121. Corrugated hose; 13. Filter screen; 14. Vibration motor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: A screening device for chili product production, such as... Figure 1-6 As shown, the screen box 1 includes an open-top structure. The screen box 1 is a strip-shaped box structure that is inclined from top to bottom and from left to right. The upper left end of the screen box 1 is provided with a feed hopper 101, which can promote the downward movement of materials. The bottom of the screen box 1 is provided with a support 2. The front and rear sides of the screen box 1 are provided with two mounting seats 102 that are spaced apart from each other. The mounting seats 102 on the screen box 1 are elastically connected to the support 2 by vibration springs 103. The vibration springs 103 are helical compression springs, which are used to isolate the vibration of the screen box 1, prevent it from being transmitted to the support 2 and the ground, and provide the screen box 1 with the required degree of freedom of vibration.

[0023] A collection box 6 is fixedly connected and communicated with the bottom of the sieve box 1. The collection box 6 is a conical structure with a horizontal diameter that gradually decreases from top to bottom, used to collect and concentrate powdery impurities under the sieve. A discharge hole is opened on one side of the bottom of the collection box 6. A hole cover 601 is hinged at the discharge hole of the collection box 6 to open and close the discharge hole. A vibration motor 14 is fixedly installed on the side wall of the collection box 2 to directly drive the sieve box 1 to generate vibration.

[0024] The sieve box 1 is equipped with two framed screens 3 spaced vertically and arranged along their extension direction. The framed screens 3 are used to remove impurities from the chili peppers on their surface by vibration. The mesh size of the upper framed screen 3 is larger than that of the lower framed screen 3, which can simultaneously obtain two different sizes of chili pepper fragments, thus achieving size grading of the chili pepper fragments. The right end of the sieve box 1 is fixed with a first discharge hopper 4 and a second discharge hopper 5. The space above the upper framed screen 3 and the sieve box 1 form a first screening section, which is connected to the first discharge hopper 4 and is used to output the large chili pepper fragments on the upper framed screen 3. The space between the two framed screens 3 and the sieve box 1 forms a second screening section, which is connected to the second discharge hopper 5 and is used to output the small chili pepper fragments on the lower framed screen 3. Impurities and chili seeds passing through the bottom framed screen 3 fall into the bottom of the sieve box 1 and enter the collection box 6 for final collection.

[0025] The framed screen 3 consists of a rectangular screen plate 301 and a screen frame 302 fixedly covering its edges, forming a rigid independent screening module. To facilitate quick installation and replacement of the framed screen 3, two sets of U-shaped guide rails 7 are fixedly installed on the inner wall of the screen box 1, spaced vertically. Each set includes two U-shaped guide rails 7 spaced apart front to back and opposite each other, forming a slide. Two framed screens 3 are slidably embedded in the corresponding two sets of U-shaped guide rails 7 through the two side edges of their screen frames 302, allowing them to be pulled along the extension direction of the screen box 1. Two installation openings adapted to the horizontal cross-sectional shape and size of the framed screen 3 are provided on the left side wall of the screen box 1. The framed screen 3 can be inserted into the U-shaped guide rails 7 through the left installation openings. A baffle 303 is fixedly installed on the left end of the framed screen 3. When the baffle 303 is fully pushed into the screen box 1, it fits snugly against the outer wall of the left end of the screen box 1, completely covering the installation opening and sealing it. To further facilitate operation, a pull ring 304 is fixedly installed on the baffle 303, allowing the operator to apply force to pull the screen. To securely lock the framed screen 3 in the working position and prevent it from shifting due to vibration during operation, both ends of the baffle 303 extend outward from the screen box 1 and are provided with first bolt holes. Correspondingly, two outwardly extending fixing plates 8 are fixed at the front and rear edges of the left end of the screen box 1. Each fixing plate 8 is provided with a second bolt hole that is coaxially aligned with the first bolt hole. Bolts pass through the first bolt hole and the second bolt hole and are locked with nuts to fasten the baffle 303 and the entire framed screen 3 connected to it to the screen box 1.

[0026] By adopting a sliding installation structure that combines a U-shaped guide rail 7 with a framed screen 3, and using a bolt-fastened baffle 303 and fixing plate 8, the technical problems of cumbersome, time-consuming, and labor-intensive traditional screen replacement procedures, which affect production efficiency, have been successfully solved. This enables rapid loading and unloading of the framed screen 3, greatly shortening equipment downtime for maintenance and improving production efficiency. At the same time, it avoids operators from entering the equipment, improving operational safety and convenience, reducing labor intensity, and ensuring the rigidity and sealing of the screen during operation, thus ensuring the stability and reliability of the screening process.

[0027] To further improve the sealing performance and prevent the extremely fine chili powder from escaping from the installation opening, a sealing ring 9 is provided between the contact surface of the baffle 303 and the outer wall of the left end of the sieve box 1. The sealing ring 9 is annular and is fixedly embedded in the outer wall of the left end of the sieve box 1 and surrounds the periphery of the installation opening.

[0028] To effectively prevent extremely fine chili powder from escaping into the workshop environment during the vibrating sieving process, a cover 10 is fixedly installed at the top opening of the sieve box 1. The cover 10 has a bottom opening structure, and the cover 10 and the sieve box 1 together form a sealed working cavity to achieve static sealing. The feed hopper 101 is fixedly installed on the upper left end of the cover 10, and its lower opening communicates with the interior of the sieve box 1. To further achieve dynamic sealing and prevent dust from overflowing from the interfaces of the feed hopper 101, the first discharge hopper 4, and the second discharge hopper 5, a centrifugal fan is installed at the front of the sieve box 1. 11. The centrifugal fan 11 is fixed on the ground by a base frame. The air inlet of the centrifugal fan 11 is connected to the side wall of the collection box 6 through the connecting pipe 12. When the centrifugal fan 11 is started, it continuously draws air into the internal space of the sieve box 1 and the collection box 6, so that a stable micro negative pressure state is formed inside. Under this negative pressure, the airflow will flow inward from each inlet and outlet, thereby effectively preventing the chili powder inside from escaping outward. The exhaust pipe of the centrifugal fan 11 is connected to the outside of the workshop through a pipe, so that the collected dust is uniformly discharged to the outside or to the dust removal equipment.

[0029] Considering that the screen box 1 and the collection box 6 vibrate continuously under the drive of the vibrating motor 7, and the centrifugal fan 11 needs to operate stably, a corrugated hose 121 is connected in series on the connecting pipe 12. The corrugated hose 121 has good flexibility, which can compensate for the displacement caused by the vibration of the equipment, effectively isolate the vibration, prevent it from being transmitted to the centrifugal fan 11, ensure the normal operation of the fan and extend its service life.

[0030] To prevent powdery impurities already collected in the collection box 6 from being lifted again and sucked into the pipe by the suction of the centrifugal fan 11, a filter screen 13 is provided at the connection channel between the sieve box 1 and the collection box 6. The filter screen 13 allows air to pass through smoothly, can intercept impurities, and plays a role in protecting the centrifugal fan 11.

[0031] Working principle: During operation, the vibrating motor 14 and the centrifugal fan 11 are started. The excitation force generated by the vibrating motor 14 drives the screen box 1 and the framed screen 3 inside to vibrate at high frequency and small amplitude. At the same time, the centrifugal fan 11 starts to work, so that a stable micro-negative pressure environment is formed inside the screen box 1 and the collection box 6.

[0032] The mixed chili fragments to be screened are fed into the feed hopper 101 and fall onto the upper framed screen 3 inside the screen box 1. Under vibration, the material jumps along the inclined screen surface and moves to the lower right. Fragments and powder with a particle size smaller than the upper screen mesh size fall through the mesh, while the largest fragments are retained as oversize material and continue to move to the right, eventually being discharged from the first discharge hopper 4, completing the first stage of screening. The chili fragments falling into the second layer are further screened on the finer lower framed screen 3, and the medium-sized fragments that meet the specifications are screened. The material on the screen of this layer is discharged from the second discharge hopper 5 and becomes a qualified product, while the smallest powdery impurities and chili seeds pass through the lower screen and fall into the bottom of the screen box 1 and enter the collection box 6 for collection. The hole cover 601 is opened periodically for cleaning. During this process, the negative pressure generated by the centrifugal fan 11 can effectively prevent dust from escaping from each inlet and outlet. After the dust-laden airflow is initially purified by the filter screen 13, it is sucked into the fan through the connecting pipe 12 and the corrugated hose 121 and finally discharged to the outside of the workshop, realizing clean production.

[0033] When replacing the framed screen 3, the operator first uses tools to loosen the bolts and nuts. After releasing the lock, the operator holds the pull ring 304 fixed on the baffle 303 and applies force outward along the axial direction of the screen box 1 to slide the framed screen 3 along the guide rail until it is completely detached from the screen box 1. Then, the operator aligns the spare or cleaned framed screen 3 with the installation opening on the left end of the screen box 1, and accurately inserts the two sides of the screen frame 302 into the corresponding U-shaped guide rail 7 inlets. The operator then pushes the baffle 303 forward, and the framed screen... The screen 3 then slides smoothly into the working position inside the screen box 1 along the guide rail until the sealing ring 9 on the inner side of the baffle 303 is tightly fitted with the outer wall of the left end of the screen box 1, completely covering the installation opening; finally, the bolts pass through the first bolt hole on the baffle 303 and the second bolt hole on the fixing plate 8 in sequence, and then the nuts are tightened. Through the tightening force of the bolts, the baffle 303 firmly presses the framed screen 3 into the screen box 1, ensuring that it will not loosen or shift during vibration operation, thus completing the installation and fixing of the framed screen 3.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A screening device for chili product production, characterized in that: Includes a screen box (1), which is a strip-shaped box structure that is inclined from top to bottom and from left to right. The screen box (1) is equipped with a vibration motor (14), and the bottom of the screen box (1) is equipped with a support (2). The front and rear sides of the screen box (1) are equipped with two mounting seats (102) spaced apart from left to right. The mounting seats (102) on the screen box (1) are elastically connected to the support (2) by vibration springs (103). The sieve box (1) is provided with at least one framed screen (3) arranged along its extension direction. A U-shaped guide rail (7) is fixedly arranged on the inner wall of the sieve box (1). The framed screen (3) is slidably embedded in the U-shaped guide rail (7) through the screen frame (302) on its edge. An installation opening corresponding to the framed screen (3) is opened on the side wall of the sieve box (1). One end of the framed screen (3) passes through the installation opening and is fixedly connected to a baffle (303). The baffle (303) is fixedly connected to the outer wall of the sieve box (1) by a detachable fastener.

2. The screening device for chili product production according to claim 1, characterized in that: There are two framed screens (3). The two framed screens (3) are arranged in the screen box (1) with a gap between them. The mesh size of the upper framed screen (3) is larger than that of the lower framed screen (3).

3. The screening device for chili product production according to claim 1, characterized in that: A sealing ring (9) is provided between the contact surface of the baffle (303) and the outer wall of the left end of the sieve box (1). The sealing ring (9) is annular and is fixedly embedded on the outer wall of the left end of the sieve box (1) and surrounds the periphery of the installation opening.

4. A screening device for chili product production according to claim 1, characterized in that: A pull ring (304) is fixedly provided on the baffle (303).

5. A screening device for chili product production according to claim 1, characterized in that: Fasteners include bolts and nuts. Both ends of the baffle (303) extend outward from the screen box (1) and are provided with first bolt holes. Two outwardly extending fixing plates (8) are fixed at the front and rear edges of the left end of the screen box (1). Bolts are inserted through the first bolt holes and the second bolt holes and locked with nuts.

6. A screening device for chili product production according to claim 1, characterized in that: The bottom of the sieve box (1) is fixedly connected to and connected to the collection box (6). The vibration motor (14) is fixedly installed on the side wall of the collection box (6). The collection box (6) is a conical structure with a gradually decreasing horizontal diameter from top to bottom. A discharge hole is opened on one side of the bottom of the collection box (6). The collection box (6) is hinged with a hole cover (601) at the discharge hole.

7. A screening device for chili product production according to claim 1, characterized in that: The top of the sieve box (1) is provided with a box cover (10), and the box cover (10) is provided with a feed hopper (101) that communicates with the inside of the sieve box (1).

8. A screening device for chili product production according to claim 1, characterized in that: A centrifugal fan (11) is provided in front of the sieve box (1). The centrifugal fan (11) is fixed on the ground by a base frame. The air inlet of the centrifugal fan (11) is connected to the side wall of the collection box (6) through a connecting pipe (12).

9. A screening device for chili product production according to claim 8, characterized in that: A corrugated hose (121) is connected in series on the connecting pipe (12).

10. A screening device for chili product production according to claim 8, characterized in that: A filter screen (13) is provided at the connection between the sieve box (1) and the collection box (6).

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