Screening device for nut machining

Abstract

The utility model provides a screening device for nut processing, which relates to the technical field of nut processing and comprises a screening box, a base is arranged at the bottom of the screening box, a feeding hopper communicated with the interior of the screening box is arranged at the top of the screening box, and a collecting box penetrating to the front side of the screening box is arranged on the inner bottom wall of the screening box. A screening frame located above the collecting box is arranged in the screening box, a pushing assembly penetrating to the left side of the screening box is arranged at the bottom of the screening frame, a control mechanism movably connected with the pushing assembly is arranged on the left side of the screening box, and a discharging mechanism penetrating to the right side of the screening box is arranged on the right side of the screening frame. And a scraping mechanism penetrating to the outer side of the screening box and extending into the screening frame is arranged in the screening box. According to the screening device for nut machining, the screening frame can be effectively prevented from being blocked, the shutdown cleaning frequency is reduced, and the discharging efficiency of the device is effectively improved.

Description

Technical Field

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

[0002] A nut is a fastener that is screwed onto a bolt or threaded rod to secure a fastener. It is an essential component in all manufacturing machinery and is often used in conjunction with a matching screw to secure the joint. After the nuts are manufactured, defective nuts need to be removed. This is usually done using a nut processing screening device.

[0003] A search revealed Chinese Patent Publication No. CN220862040U, which discloses a screening device for nut processing. The device includes a base plate with fixed stacks at both ends of its top. Rollers are rotatably mounted on the opposite sides of each fixed stack. In this design, defective nuts are screened off the sieve plate and conveyed out via a belt. However, the qualified nuts require manual removal, significantly impacting the equipment's processing efficiency. Furthermore, the nuts are prone to clogging during screening, further reducing efficiency. Therefore, this paper proposes a screening device for nut processing to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a screening device for nut processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A screening device for nut processing includes a screening box, a base at the bottom of the screening box, a feeding hopper communicating with the top of the screening box, a collection box extending through to the front of the inner bottom wall of the screening box, a screening frame located above the collection box inside the screening box, a pushing component extending through to the left side of the screening box at the bottom of the screening frame, a control mechanism movably connected to the pushing component on the left side of the screening box, a discharge mechanism extending through to the right side of the screening frame, and a scraping mechanism extending through to the outside and into the inside of the screening frame inside the screening box.

[0007] The pushing assembly includes a swing block, which is rotatably mounted on the left side of the bottom of the screening frame. A pushing plate extending through to the left side of the screening box is fixedly connected to the left side of the swing block. Auxiliary springs located on the front and rear sides of the pushing plate are fixedly installed between the swing block and the inner side wall of the screening box. A connecting groove is opened on the left side of the pushing plate, and a connecting rod is fixedly installed at the bottom of the pushing plate.

[0008] Preferably, the inner top wall of the screening box is fixedly equipped with two baffles that extend to the inside of the screening frame, and the inner bottom wall of the screening frame is provided with a number of sieve holes located between the two baffles.

[0009] Preferably, the control mechanism includes a fixed plate, which is fixedly installed on the left side of the screening box. A swing rod is rotatably installed on the top of the fixed plate, extending through the top of the connecting groove and sleeved on the outside of the connecting rod. An elongated hole adapted to the connecting rod is opened on the inner side of the swing rod. A drive motor located behind the swing rod is fixedly installed on the top of the fixed plate. A rotating disk is fixedly installed on the output shaft of the drive motor. A control rod extending into the elongated hole is fixedly installed below the front side of the rotating disk.

[0010] Preferably, the unloading mechanism includes an unloading hopper, which is fixedly installed on the right side of the screening frame and extends through to the right side of the screening box. A guide block is fixedly installed at the bottom of the unloading hopper, and a sliding block extending to its bottom is slidably installed inside the guide block. An electric telescopic rod is fixedly installed on the right side of the screening box, and the output end of the electric telescopic rod is rotatably connected to the sliding block.

[0011] Preferably, the scraping mechanism includes a servo motor, which is fixedly installed on the left side of the screening box. The output shaft of the servo motor passes through the interior of the screening box and is fixedly connected to a lead screw that is rotatably connected to the right side of its inner wall. A guide rod is fixedly installed between the left and right sides of the inner wall of the screening box. The lead screw and the guide rod are respectively located on the front and rear sides above the screening frame. A threaded plate is threaded on the outer side of the lead screw, which is sleeved on the outer side of the guide rod and extends to the top of the screening frame. A scraping plate extending into the interior of the screening frame is fixedly installed at the bottom of the threaded plate. The scraping plate has a through hole inside.

[0012] Preferably, the right side of the screening box is provided with a discharge hole that matches the moving trajectory of the unloading hopper, and the inside of the guide block is provided with a sliding groove that matches the moving trajectory of the sliding block.

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

[0014] This nut processing screening device uses a combination of a push component and a control mechanism to control the screening frame to shake and screen, and then uses a scraping mechanism to control the movement of the scraper plate to clean the screen, effectively preventing the screening frame from clogging and reducing the frequency of downtime for cleaning.

[0015] This nut processing screening device, by setting up a discharge mechanism, allows the electric telescopic rod to retract when the screening frame has finished screening and needs to be discharged. This causes the screening frame to tilt to the lower right, and the screened nuts can then be poured out of the discharge hopper, effectively improving the device's discharge efficiency and making it more convenient for users. Attached Figure Description

[0016] Figure 1 A schematic diagram of the main structure of a screening device for nut processing provided by this utility model;

[0017] Figure 2 A perspective side view of the main body structure of a screening device for nut processing provided by this utility model;

[0018] Figure 3 A perspective view of the connection structure between the pushing component and the control mechanism of a nut processing screening device provided by this utility model;

[0019] Figure 4 A three-dimensional view of the scraping mechanism of a screening device for nut processing provided by this utility model.

[0020] Legend: 1. Screening box; 2. Base; 3. Feeding hopper; 4. Collection box; 5. Screening frame; 51. Baffle; 52. Screen hole; 6. Pushing assembly; 61. Swing block; 62. Push plate; 63. Auxiliary spring; 64. Connecting groove; 65. Connecting rod; 7. Control mechanism; 71. Fixed plate; 72. Swing rod; 73. Long slot; 74. Drive motor; 75. Rotary disk; 76. Control rod; 8. Unloading mechanism; 81. Unloading hopper; 82. Guide block; 821. Slide groove; 83. Sliding block; 84. Electric telescopic rod; 9. Scraping mechanism; 91. Servo motor; 92. Lead screw; 93. Guide rod; 94. Threaded plate; 95. Scraper plate; 96. Perforation; 10. Discharge hole. Detailed Implementation

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

[0022] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] Example

[0026] like Figure 1-4 As shown, this utility model provides a technical solution: a screening device for nut processing, including a screening box 1, a base 2 fixedly installed at the bottom of the screening box 1, the screening box 1 serving as the main frame of the device, a feeding hopper 3 fixedly installed at the top of the screening box 1 communicating with its interior, the feeding hopper 3 having a funnel-shaped opening design, a collection box 4 movably installed on the inner bottom wall of the screening box 1 extending to its front side to collect defective products, a screening frame 5 movably installed inside the screening box 1 above the collection box 4, two baffles 51 fixedly installed on the inner top wall of the screening box 1 extending to the inner side of the screening frame 5, the baffles 51 preventing nuts from falling out of the screening frame 5, and a plurality of sieve holes 52 opened on the inner bottom wall of the screening frame 5 between the two baffles 51, the sieve holes 52 separating defective nuts.

[0027] A push assembly 6 is movably installed at the bottom of the screening frame 5, extending through to the left side of the screening box 1. The push assembly 6 includes a swing block 61, which is rotatably installed on the left side of the bottom of the screening frame 5. A push plate 62 extending through to the left side of the screening box 1 is fixedly connected to the left side of the swing block 61. Auxiliary springs 63 located on the front and rear sides of the push plate 62 are fixedly installed between the swing block 61 and the inner wall of the screening box 1. The auxiliary springs 63 buffer the impact force, reduce mechanical wear and noise. A connecting groove 64 is opened on the left side of the push plate 62. A connecting rod 65 is fixedly installed at the bottom of the push plate 62. The push assembly 6 realizes the transmission control of the screening frame 5.

[0028] A control mechanism 7, which is movably connected to the push assembly 6, is fixedly installed on the left side of the screening box 1. The control mechanism 7 includes a fixed plate 71, which is fixedly installed on the left side of the screening box 1. A swing rod 72, which extends through to the top of the connecting groove 64 and is sleeved on the outside of the connecting rod 65, is rotatably installed on the top of the fixed plate 71. An elongated hole 73, which is adapted to the connecting rod 65, is opened on the inner side of the swing rod 72. A drive motor 74, which is located behind the swing rod 72, is fixedly installed on the top of the fixed plate 71. A rotating disk 75 is fixedly installed on the output shaft of the drive motor 74. A control rod 76, which extends into the elongated hole 73, is fixedly installed below the front side of the rotating disk 75. This nut processing screening device controls the screening frame 5 to shake and screen by setting the push assembly 6 and the control mechanism 7 to cooperate.

[0029] A discharge mechanism 8, extending through to the right side of the screening box 1, is fixedly connected to the right side of the screening frame 5. The discharge mechanism 8 includes a discharge hopper 81, which is fixedly installed on the right side of the screening frame 5 and extends through to the right side of the screening box 1. A discharge hole 10, adapted to the moving trajectory of the discharge hopper 81, is provided on the right side of the screening box 1. A guide block 82 is fixedly installed at the bottom of the discharge hopper 81. A sliding block 83, extending to its bottom, is slidably installed inside the guide block 82. The cooperation between the guide block 82 and the sliding block 83 ensures a stable discharge trajectory. The internal part of the screening box 1 is provided with a groove 821 that matches the moving trajectory of the sliding block 83. An electric telescopic rod 84 is fixedly installed on the right side of the screening box 1. The output end of the electric telescopic rod 84 is rotatably connected to the sliding block 83. This nut processing screening device, by setting a discharge mechanism 8, can control the electric telescopic rod 84 to retract when the screening box 5 has finished screening and needs to be discharged, so that the screening box 5 tilts to the lower right and the nuts screened in the screening box 5 can be poured out from the discharge hopper 81, which effectively improves the discharge efficiency of the device.

[0030] The screening box 1 is equipped with a scraping mechanism 9 that extends through to the outside and into the screening frame 5. The scraping mechanism 9 includes a servo motor 91, which is fixedly installed on the left side of the screening box 1. The output shaft of the servo motor 91 extends through the inside of the screening box 1 and is fixedly connected to a lead screw 92 that is rotatably connected to the right side of its inner wall. A guide rod 93 is fixedly installed between the left and right sides of the inner wall of the screening box 1. The lead screw 92 and the guide rod 93 are located on the front and rear sides above the screening frame 5, respectively. A threaded plate 94 is threaded on the outside of the lead screw 92, which is sleeved on the outside of the guide rod 93 and extends into the screening frame 5. A scraper plate 95 extending into the screening frame 5 is fixedly installed at the bottom of the threaded plate 94. The scraper plate 95 has a through hole 96 inside. This nut processing screening device controls the movement of the scraper plate 95 to clean the screen through the scraping mechanism 9, effectively preventing the screening frame 5 from clogging and reducing the frequency of downtime for cleaning.

[0031] The working process of this utility model:

[0032] Step 1: The nut enters the screening frame 5 in the screening box 1 through the feeding hopper 3. At this time, the drive motor 74 in the control mechanism 7 drives the rotating disk 75 to rotate. The control rod 76 is linked with the elongated hole 73 of the swing rod 72. With the cooperation of the connecting rod 65, the push plate 62 is controlled to move back and forth, thereby pushing the screening frame 5 to shake and screen.

[0033] Step 2: By controlling the servo motor 91 to drive the lead screw 92 to rotate, the lead screw 92 drives the scraper plate 95 to reciprocate under the cooperation of the guide rod 93 through the threaded plate 94, scraping the bottom wall of the screening frame 5 to prevent the screen holes from being blocked, and using the perforation 96 to avoid the accumulation of nuts.

[0034] Step 3: After screening by the screening box 5, the unqualified nuts fall into the collection box 4 for collection. At this time, by controlling the electric telescopic rod 84 to retract, and with the cooperation of the sliding block 83 and the guide block 82, the unloading hopper 81 and the screening box 5 tilt to the lower right, and the qualified products can be poured out from the screening box 5 for collection.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screening device for nut processing, comprising a screening box (1), a base (2) provided at the bottom of the screening box (1), a feeding hopper (3) communicating with the top of the screening box (1), and a collection box (4) extending through to the front of the inner bottom wall of the screening box (1), characterized in that: The screening box (1) is provided with a screening frame (5) located above the collection box (4) inside. The bottom of the screening frame (5) is provided with a pushing component (6) that extends to the left side of the screening box (1). The left side of the screening box (1) is provided with a control mechanism (7) that is movably connected to the pushing component (6). The right side of the screening frame (5) is provided with a discharge mechanism (8) that extends to the right side of the screening box (1). The screening box (1) is provided with a scraping mechanism (9) that extends to the outside of the screening box (5) and into the screening frame (5). The pushing assembly (6) includes a swing block (61), which is rotatably mounted on the left side of the bottom of the screening frame (5). A pushing plate (62) extending through to the left side of the screening box (1) is fixedly connected to the left side of the swing block (61). An auxiliary spring (63) located on the front and rear sides of the pushing plate (62) is fixedly installed between the swing block (61) and the inner side wall of the screening box (1). A connecting groove (64) is provided on the left side of the pushing plate (62), and a connecting rod (65) is fixedly installed at the bottom of the pushing plate (62).

2. The screening device for nut processing according to claim 1, characterized in that: The inner top wall of the screening box (1) is fixedly equipped with two baffles (51) that extend to the inside of the screening frame (5), and the inner bottom wall of the screening frame (5) is provided with a number of sieve holes (52) located between the two baffles (51).

3. The screening device for nut processing according to claim 1, characterized in that: The control mechanism (7) includes a fixed plate (71), which is fixedly installed on the left side of the screening box (1). A swing rod (72) is rotatably installed on the top of the fixed plate (71), extending through the top of the connecting groove (64) and sleeved on the outside of the connecting rod (65). An elongated hole (73) adapted to the connecting rod (65) is opened on the inner side of the swing rod (72). A drive motor (74) located behind the swing rod (72) is fixedly installed on the top of the fixed plate (71). A rotating disk (75) is fixedly installed on the output shaft of the drive motor (74). A control rod (76) extending into the elongated hole (73) is fixedly installed on the lower front side of the rotating disk (75).

4. The screening device for nut processing according to claim 1, characterized in that: The unloading mechanism (8) includes an unloading hopper (81), which is fixedly installed on the right side of the screening frame (5) and extends through to the right side of the screening box (1). A guide block (82) is fixedly installed at the bottom of the unloading hopper (81), and a sliding block (83) extending to its bottom is slidably installed inside the guide block (82). An electric telescopic rod (84) is fixedly installed on the right side of the screening box (1), and the output end of the electric telescopic rod (84) is rotatably connected to the sliding block (83).

5. A screening device for nut processing according to claim 1, characterized in that: The scraping mechanism (9) includes a servo motor (91), which is fixedly installed on the left side of the screening box (1). The output shaft of the servo motor (91) passes through the interior of the screening box (1) and is fixedly connected to a lead screw (92) that is rotatably connected to the right side of its inner wall. A guide rod (93) is fixedly installed between the left and right sides of the inner wall of the screening box (1). The lead screw (92) and the guide rod (93) are located on the front and rear sides above the screening frame (5), respectively. A threaded plate (94) is threaded on the outer side of the lead screw (92), which is sleeved on the outer side of the guide rod (93) and extends to the top of the screening frame (5). A scraper plate (95) extending into the interior of the screening frame (5) is fixedly installed at the bottom of the threaded plate (94). A through hole (96) is opened inside the scraper plate (95).

6. A screening device for nut processing according to claim 4, characterized in that: The right side of the screening box (1) is provided with a discharge hole (10) that is compatible with the movement trajectory of the unloading hopper (81), and the inside of the guide block (82) is provided with a sliding groove (821) that is compatible with the movement trajectory of the sliding block (83).

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