Sample impurity separation device

Abstract

The utility model discloses a sample impurity separating device which comprises a separating box provided with an opening and closing cabinet door, a screening box used for screening samples is arranged in the separating box, and a material guiding mechanism used in cooperation with the screening box and used for collecting impurities is arranged below the screening box. The material guiding mechanism comprises a material guiding plate which is obliquely arranged and a material receiving frame which is arranged below the material guiding plate and used for containing and receiving impurities, the material guiding plate is movably connected with the separation box and swings in a reciprocating mode through a driving assembly, and the material guiding plate swings to guide the impurities collected on the material guiding plate towards the material receiving frame. The material guiding mechanism is arranged below an existing screening box, the obliquely-arranged material guiding plate can intercept impurities falling in the screening box, and due to the fact that the material guiding plate is movably arranged in the separating box and used in cooperation with the driving assembly, the impurities intercepted on the material guiding plate can be guided along the material guiding plate and then enter the material receiving frame to be collected; separated impurities can be collected in a centralized mode, and the problem that in the prior art, separated impurities need to be manually collected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of separation devices, in particular to a sample impurity separation device. Background Art

[0002] Food testing is the inspection of the quality of food raw materials, auxiliary materials, semi-finished products, finished products and by-products in accordance with established technical standards to ensure that the product quality is qualified. The content of food inspection includes sensory testing of food, testing of nutrients, additives, and harmful substances in food, etc.

[0003] Before many food tests, samples need to be separated from impurities to improve the accuracy of food testing. Separation devices in the prior art use reciprocating screens for separation. For example, the patent authorization announcement number is CN218035983U, and the name is a patent for a sample impurity separation device for food testing. In this patent, the food to be screened is placed in a screening box, which is located in the separation box and reciprocates in the horizontal direction under the action of a matching driving component. The impurities to be screened fall from the screening box to achieve the sample separation operation.

[0004] The structure of the above patent can separate impurities, but the separated impurities are directly scattered in the separation box and need to be collected manually, which is inconvenient for the impurity collection work. Utility Model Content

[0005] In view of the deficiencies existing in the prior art, the utility model provides a sample impurity separation device, which solves the problem of inconvenience in collecting impurities after separation in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solution: a sample impurity separation device, including a separation box with an opening and closing cabinet door, a screening box for screening samples is provided in the separation box, and a material guide mechanism for collecting impurities is provided under the screening box.

[0007] The material guiding mechanism comprises a material guiding plate arranged obliquely and a material receiving frame arranged below the material guiding plate for receiving impurities.

[0008] The guide plate is movably connected to the separation box and swings back and forth through the driving component. The swing of the guide plate guides the impurities collected on the guide plate toward the material receiving frame.

[0009] Furthermore, the guide plate is in a strip-shaped structure, the guide plate is horizontal along its length direction and tilted toward the bottom of the separation box, and the screening box is located above the guide plate;

[0010] A rotating shaft is provided along the width direction of the guide plate and is connected therethrough. The rotating shaft is close to the middle and lower part of the guide plate in the inclined direction and is fixed to the inner wall of the separation box.

[0011] Further, the driving assembly includes a rotating cam and at least one compression spring arranged between the guide plate and the bottom of the separation box, the rotating cam is located at the upper part of the guide plate in the inclined direction, and the outer periphery of the rotating cam is in contact with the guide plate.

[0012] The rotating cam rotates to drive the guide plate to swing along the rotating shaft.

[0013] Furthermore, the rotating cam is provided with a coaxially fixed driving shaft, the driving shaft passes through the side wall of the separation box and is rotatably connected to the side wall of the separation box, and the part of the driving shaft located outside the separation box is connected to a rotating component, which is used to drive the driving shaft to rotate.

[0014] Furthermore, a flexible connection plate for preventing leakage is provided between the inclined upper end of the guide plate and the inner wall of the separation box.

[0015] Furthermore, the inclined lower end of the material guide plate extends out of the material discharge port provided on the separation box and is located outside the separation box, and the material receiving frame is located outside the separation box and below the inclined lower end of the material guide plate.

[0016] Furthermore, an auxiliary box with a material discharging buckle is provided outside the separation box, a box door with an opening and closing arrangement is provided on the auxiliary box, and a material receiving frame is drawable and arranged in the auxiliary box.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a material guiding mechanism under the existing screening box, and the inclined material guiding plate can intercept the impurities falling in the screening box. Since the material guiding plate is movably arranged in the separation box, in conjunction with the use of the driving component, the impurities intercepted on the material guiding plate can be guided along the material guiding plate and then into the material receiving frame for collection, thereby realizing the centralized collection of the separated impurities and avoiding the problem of manual collection of the separated impurities in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a top view of the connection between the guide plate and the rotating shaft of the utility model.

[0021] In the figure: separation box 1, screening box 2, guide plate 3, rotating shaft 31, flexible connecting plate 32, auxiliary box 4, material receiving frame 5, compression spring 6, rotating cam 7, drive shaft 8, first pulley 9, protective shell 10, discharge port 11, transmission belt 12, second pulley 13, connecting shaft 14, first bevel gear 15, output shaft 16, second bevel gear 17, motor 25. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] like Figure 1 As shown, a sample impurity separation device includes a separation box 1. The separation box 1 is a rectangular box structure. A plurality of support columns are provided at the bottom of the separation box 1. An opening is provided in the front of the separation box 1. A cabinet door for opening and closing is provided at the open end of the separation box 1. The cabinet door is provided to facilitate the removal of samples from the separation box 1.

[0024] In order to separate the samples, a screening box 2 is provided in the separation box 1. The bottom of the screening box 2 adopts a screen structure. The screening box 2 is horizontally arranged in the separation box 1 and can reciprocate in the horizontal direction. The use principle of the screening box 2 and the overall structure for achieving sample screening are set with reference to the prior art (patent authorization announcement number CN218035983U), ensuring that impurities can pass through the screening box 2 and fall off.

[0025] In the utility model, the impurities dropped from the screening box 2 are mainly collected in a centralized manner. To this end, the utility model is provided with a material guiding mechanism for collecting impurities under the screening box 2. Specifically, the material guiding mechanism comprises a material guiding plate 3 arranged obliquely and a material receiving frame 5 arranged under the material guiding plate 3 for receiving impurities. The material guiding plate 3 is movably connected to the separation box 1 and reciprocates through the driving assembly. The material guiding plate 3 swings to guide the impurities collected on the material guiding plate 3 toward the material receiving frame 5.

[0026] The driving assembly can adopt an electric telescopic rod in the prior art, one end of which is hinged to the bottom of the separation box 1, and the other end of which is hinged to the guide plate 3, which is movably connected to the inner wall of the separation box 1. When the electric telescopic rod reciprocates and retracts, it can drive the guide plate 3 to swing back and forth along the tilting direction, thereby guiding the impurities collected on the guide plate 3, and then the material receiving frame 5 can realize automatic collection of the impurities dropped from the screening box 2, avoiding the problem that the impurities separated in the prior art need to be manually collected.

[0027] In order to facilitate the installation of the guide plate 3 and the separation box 1, in the utility model, Figure 1 , 2As shown, the guide plate 3 is a strip-shaped structure, the guide plate 3 is horizontal along its length direction and tilted toward the bottom of the separation box 1, and the screening box 2 is located above the guide plate 3; a rotating shaft 31 is provided along the width direction of the guide plate 3, and the rotating shaft 31 is close to the middle and lower part of the tilt direction of the guide plate 3 and is fixed to the inner wall of the separation box 1. The rotating shaft 31 can set the guide plate 3 in the separation box 1, so that the length direction of the guide plate 3 is located between the left and right inner walls of the separation box 1, and the driving component acts on any end of the guide plate 3, which can drive the guide plate 3 to swing back and forth along the rotating shaft 31, so as to guide the impurities intercepted by the guide plate 3.

[0028] In addition to the structure of the electric telescopic rod described above, the driving assembly can also adopt the structure of the utility model. Specifically, the driving assembly includes a rotating cam 7 and at least one compression spring 6 arranged between the guide plate 3 and the bottom of the separation box 1. The rotating cam 7 is located at the upper part of the guide plate 3 in the inclined direction, and the outer periphery of the rotating cam 7 is in contact with the guide plate 3. The rotating cam 7 rotates to drive the guide plate 3 to swing along the rotating shaft 31. Figure 1 As shown, the rotating cam 7 is located below the guide plate 3, and the periphery of the rotating cam 7 contacts the bottom of the guide plate 3; two compression springs 6 are arranged side by side between the guide plate 3 and the bottom of the separation box 1, one end of each compression spring 6 is fixed to the bottom of the separation box 1, and the other end is fixed to the bottom of the guide plate 3. The rotating cam 7 rotates, and the compression spring 6 is used to make the guide plate 3 swing along the rotating shaft 31.

[0029] In order to realize the rotation of the rotating cam 7, the rotating cam 7 of the utility model is provided with a coaxially fixed drive shaft 8, the drive shaft 8 passes through the side wall of the separation box 1 and is rotatably connected to the side wall of the separation box 1, and the part of the drive shaft 8 located outside the separation box 1 is connected to a rotating component, which is used to drive the drive shaft 8 to rotate.

[0030] Illustratively, the connecting component can be a servo motor 25 in the prior art, which is fixed to the outer wall of the separation box 1. The servo motor 25 can drive the driving shaft 8 and the rotating cam 7 to rotate, and drive the guide plate 3 to swing for guiding the material.

[0031] Illustratively, the connecting component may also adopt the following structure.

[0032] like Figure 1As shown, since the driving mechanism for the reciprocating movement of the screening box 2 is a motor 25, for this reason, in order to save energy, the drive shaft 8 of the utility model is linked to the motor 25 that drives the screening box 2 to move through a connecting component. Specifically, the connecting component includes two pulleys, a transmission belt 12 sleeved on the two pulleys, a connecting shaft 14, and two bevel gears that mesh with each other. One of the pulleys (the first pulley 9) is coaxially arranged with the drive shaft 8, and the other pulley (the second pulley 13) is fixed to one end of the connecting shaft 14; the connecting shaft 14 is horizontally arranged on the outer top of the separation box 1, and the connecting shaft 14 is rotatably connected to the separation box 1 through a mounting seat; the other end of the connecting shaft 14 is coaxially fixed with one of the bevel gears (the first bevel gear 15), and the other bevel gear (the second bevel gear 17) is coaxially fixed with the output shaft 16 of the motor 25. When in use, the motor 25 rotates to drive the output shaft 16 to rotate, the output shaft 16 rotates to drive the connecting shaft 14 to rotate, the connecting shaft 14 rotates to drive the driving shaft 8 to rotate, the driving shaft 8 rotates to drive the rotating cam 7 to rotate, and the rotating cam 7 rotates to drive the guide plate 3 to swing for guiding materials.

[0033] Since the connecting components are arranged outside the separation box 1, in order to avoid the connecting components being damaged or hurting people, the utility model provides a protective shell 10 on the outer wall of the separation box 1, and the protective shell 10 covers the connecting components.

[0034] During the swinging process of the guide plate 3, the upper end of the guide plate 3 in the tilting direction must be set with a gap from the inner wall of the separation box 1 to prevent impurities from passing through the gap and entering the bottom of the guide plate 3, causing inconvenience in collection. Figure 1 As shown, a flexible connection plate 32 for leak prevention is provided between the inclined upper end of the guide plate 3 of the utility model and the inner wall of the separation box 1. The flexible connection plate 32 can be an elastic structure made of silicone material, natural latex, rubber, plastic, aluminum film, PVC (polyvinyl chloride), aluminum foil, PA (polyamide), PE (polyethylene) and other materials in the prior art. The provision of the flexible connection plate 32 can prevent impurities from falling from the gap between the upper end of the guide plate 3 and the inner wall of the separation box 1; at the same time, it does not affect the swing of the guide plate 3.

[0035] The material receiving frame 5 can be arranged inside the separation box 1, and the material can be taken out by opening the cabinet door. However, this method cannot timely observe the content of impurities in the material receiving frame 5. For this reason, Figure 1 As shown, the present invention sets the material receiving frame 5 outside the separation box 1; in order to enable the material guide plate 3 to lead the impurities in the separation box 1 to the outside of the separation box 1, the present invention extends the inclined lower end of the material guide plate 3 out of the material outlet 11 opened on the separation box 1 and is located outside the separation box 1, and the material receiving frame 5 is located outside the separation box 1 and below the inclined lower end of the material guide plate 3. This arrangement makes it easy to observe the impurity content in the material receiving frame 5 and dump it in time for processing.

[0036] Since the material receiving frame 5 is located outside the separation box 1, there is a problem of collision and dumping. Figure 1 As shown, the utility model is provided with an auxiliary box 4 with a material discharging buckle outside the separation box 1, a box door for opening and closing is provided on the auxiliary box 4, and a material receiving frame 5 is pulled out and arranged in the auxiliary box 4. Either or both of the box door and the auxiliary box 4 are made of transparent acrylic material, so that the auxiliary box 4 can protect the material receiving frame 5 and can also observe the content of impurities in the material receiving frame 5 in time.

[0037] Principle of the utility model:

[0038] Open the door of the separation box 1, put the sample to be separated into the screening box 2, and close the door; start the motor 25 used in conjunction with the screening box 2, and the screening box 2 reciprocates in the horizontal direction; the motor 25 drives the rotating cam 7 to rotate through the connecting parts, and the rotation of the rotating cam 7 forces the guide plate 3 to swing along the rotating shaft 31; the impurities falling from the screening box 2 are intercepted by the guide plate 3, and the impurities intercepted on the guide plate 3 are guided by the swinging guide plate 3 and collected by the receiving frame 5, thereby realizing the separation of samples and the automatic collection of impurities.

[0039] 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 sample impurity separation device, comprising a separation box (1) provided with an opening and closing cabinet door, a screening box (2) for screening samples is provided in the separation box (1), characterized in that: A material guide mechanism for collecting impurities is provided below the screening box (2). The material guiding mechanism comprises a material guiding plate (3) arranged obliquely and a material receiving frame (5) arranged below the material guiding plate (3) for receiving impurities. The guide plate (3) is movably connected to the separation box (1) and reciprocates through a driving assembly. The guide plate (3) swings to guide impurities collected on the guide plate (3) toward the material receiving frame (5).

2. A sample impurity separation device according to claim 1, characterized in that: The guide plate (3) is in a strip-shaped structure, the guide plate (3) is horizontal along its length direction and tilted toward the bottom of the separation box (1), and the screening box (2) is located above the guide plate (3); A rotating shaft (31) is provided along the width direction of the guide plate (3) and is connected therethrough. The rotating shaft (31) is located close to the middle and lower part of the guide plate (3) in the inclined direction and is fixed to the inner side wall of the separation box (1).

3. A sample impurity separation device according to claim 2, characterized in that: The driving assembly comprises a rotating cam (7) and at least one compression spring (6) arranged between the guide plate (3) and the inner bottom of the separation box (1); the rotating cam (7) is located at the upper part of the guide plate (3) in the inclined direction, and the outer periphery of the rotating cam (7) is in contact with the guide plate (3). The rotating cam (7) rotates to drive the material guide plate (3) to swing along the rotating shaft (31).

4. A sample impurity separation device according to claim 3, characterized in that: The rotating cam (7) is provided with a coaxially fixed drive shaft (8), the drive shaft (8) passes through the side wall of the separation box (1) and is rotatably connected to the side wall of the separation box (1), and the part of the drive shaft (8) located outside the separation box (1) is connected to a rotating component, and the rotating component is used to drive the drive shaft (8) to rotate.

5. A sample impurity separation device according to any one of claims 1 to 4, characterized in that: A flexible connection plate (32) for preventing leakage is provided between the inclined upper end of the guide plate (3) and the inner wall of the separation box (1).

6. A sample impurity separation device according to any one of claims 1 to 4, characterized in that: The inclined lower end of the guide plate (3) extends out of a discharge port (11) provided on the separation box (1) and is located outside the separation box (1); the material receiving frame (5) is located outside the separation box (1) and below the inclined lower end of the guide plate (3).

7. A sample impurity separation device according to claim 5, characterized in that: An auxiliary box (4) with a material discharging buckle is provided outside the separation box (1), a box door with an opening and closing arrangement is provided on the auxiliary box (4), and a material receiving frame (5) is drawable and arranged inside the auxiliary box (4).

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