Sample splitter screen tensioning device

Abstract

The utility model provides a kind of sample separation screen mesh tightener, including support, the bottom of support is provided with positioning slot, the upper portion of positioning slot is provided with the rotating lift tensioning disc, the support above the upper portion of positioning slot is provided with baffle ring, baffle ring is used to fall off the sample separation screen on tensioning disc, positioning slot, tensioning disc and baffle ring coaxial arrangement, the inner diameter of baffle ring is greater than the outer diameter of tensioning disc, and less than the outer diameter of sample separation screen, baffle ring and positioning slot between still be provided with discharge assembly;The utility model is convenient and fast to carry out the net processing of sample separation screen, and realizes the automatic discharge of sample separation screen.

Description

Technical Field

[0001] This utility model relates to the technical field of sample sieve processing equipment, and in particular to a sample sieve screen tensioning device. Background Technology

[0002] The sieve consists of a sieve frame and a sieve mesh. After the sieve mesh and sieve frame are fixed together, the mesh needs to be stretched to ensure that the mesh is under tension and achieves the required roundness. Currently, there is no suitable device for conveniently and quickly stretching the mesh of the sieve. If only a tensioning plate is used for stretching the mesh, the mesh is prone to getting stuck on the tensioning plate, making it difficult for workers to remove. After the sieve is detached from the tensioning plate, it is easy to fall back into the positioning slot, preventing direct discharge and affecting work efficiency. Utility Model Content

[0003] This utility model proposes a screen tensioning device for a sample sieve, which facilitates and quickly tensions the screen of the sample sieve and enables automatic discharge of the sample sieve.

[0004] The technical solution of this utility model is implemented as follows: a sample sieve tensioning device includes a support, a positioning groove is provided at the bottom of the support, a rotating and lifting tensioning plate is provided above the positioning groove, a retaining ring is provided on the support above the positioning groove, the retaining ring is used for the sample sieve to fall off the tensioning plate, the positioning groove, the tensioning plate and the retaining ring are arranged coaxially, the inner diameter of the retaining ring is larger than the outer diameter of the tensioning plate and smaller than the outer diameter of the sample sieve, and a discharge component is also provided between the retaining ring and the positioning groove.

[0005] Furthermore, the discharge assembly includes two parallel and spaced discharge plates that are inclined downwards. The discharge plates are hinged to the support and a limiting plate is also fixed on the support. The limiting plate is located at the lower end of the discharge plate and restricts the discharge plate from rotating downwards. The distance between the two discharge plates is greater than the outer diameter of the tensioning disc and less than the outer diameter of the sieve. The distance between the two limiting plates is greater than the outer diameter of the molecular sieve.

[0006] Furthermore, a coaxial threaded rod is fixed to the upper end of the tensioning disc, and the upper end of the threaded rod is threaded through the top of the bracket and connected to the drive mechanism.

[0007] Furthermore, the drive mechanism is a rotary handle.

[0008] Furthermore, an internally threaded cylinder is fixed to the top of the bracket, and the upper end of the threaded rod passes through the internally threaded cylinder.

[0009] Furthermore, the support includes a base plate, with uprights fixed on all four sides of the base plate. The upper ends of the uprights on the same side are connected by connecting plates, and an internally threaded cylinder is fixed between the two connecting plates.

[0010] The beneficial effects of this utility model are: This invention uses a rotating and lifting tensioning disc to correct the screen frame of the sieve, thereby stretching the screen and ensuring the roundness of the sieve. With the addition of a retaining ring, the sieve automatically disengages as the tensioning disc moves upward and resets. The discharge assembly enables automatic discharge from the sieve, improving the efficiency of the screen stretching process.

[0011] The discharge assembly of this utility model has a limiting plate fixed on the support plate at the lower end of the discharge plate. The limiting plate makes the discharge plate rotate only upward and not downward. The distance between the two limiting plates is greater than the outer diameter of the molecular sieve, which facilitates the upward movement and passage of the tensioning plate with the molecular sieve. The molecular sieve pushes the discharge plate to rotate upward. After the molecular sieve passes through, the discharge plate falls back due to gravity. The distance between the two discharge plates is greater than the outer diameter of the tensioning plate and less than the outer diameter of the sample sieve, so it does not affect the rotation and lifting of the tensioning plate. After the molecular sieve detaches from the tensioning plate, it falls onto the discharge plate and automatically slides off from one side by gravity. The worker can then lower a sample sieve into the positioning groove from the other side. Attached Figure Description

[0012] 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.

[0013] Figure 1 This is the front view of the present invention; Figure 2 Left view of the support plate and the limiting plate; Figure 3 This is a top view of the positioning groove; Figure 4 for Figure 3 A schematic diagram of the cross-sectional view of AA.

[0014] 1. Bracket; 2. Positioning groove; 3. Tensioning disc; 4. Threaded rod; 5. Internal threaded cylinder; 6. Rotating handle; 7. Sampling sieve; 8. Retaining ring; 9. Discharge plate; 10. Support plate; 11. Limiting plate; 12. Base plate; 13. Upright pole; 14. Connecting plate. Detailed Implementation

[0015] 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.

[0016] Example 1 like Figure 1 , 3 As shown in Figure 4, the screen tensioning device for the sample sieve 7 includes a support 1. The bottom of the support 1 is provided with a positioning groove 2, and a rotating and lifting tensioning disc 3 is provided above the positioning groove 2. A coaxial threaded rod 4 is fixed to the upper end of the tensioning disc 3. A vertical internal threaded cylinder 5 is fixed to the top of the support 1. The upper end of the threaded rod 4 passes through the internal threaded cylinder 5 and is connected to the drive mechanism. The drive mechanism is a rotating handle 6. By manually rotating the rotating handle 6, the threaded rod 4 is driven to rotate and lift, thereby driving the tensioning disc 3 to rotate and lift, placing the lower end of the sample sieve 7 into the positioning groove 2. The tensioning disc 3 rotates and moves down, performing tensioning and correction on the screen of the sample sieve 7, thereby tightening the screen.

[0017] A retaining ring 8 is fixed on the bracket 1 above the positioning groove 2. The retaining ring 8 is used to remove the sample sieve 7 from the tensioning plate 3. The positioning groove 2, the tensioning plate 3 and the retaining ring 8 are arranged on the same axis. The inner diameter of the retaining ring 8 is larger than the outer diameter of the tensioning plate 3 and smaller than the outer diameter of the sample sieve 7. After the sample sieve 7 is tightened by the tensioning plate 3, it will be stuck on the outside of the tensioning plate 3 and move upward synchronously with the tensioning plate 3. When the tensioning plate 3 moves upward and passes the retaining ring 8, the retaining ring 8 abuts against the upper end of the sample sieve 7, restricting the upward movement of the sample sieve 7, thereby causing the sample sieve 7 to detach from the tensioning plate 3.

[0018] like Figure 1-2 As shown, a discharge assembly is also provided between the retaining ring 8 and the positioning groove 2. The discharge assembly includes two parallel and spaced discharge plates 9. The discharge plates 9 are inclined downwards and are hinged to the upper side of the support plate 10. The support plate 10 is fixed to the bracket 1. A limiting plate 11 is also fixed on the support plate 10 at the lower end of the discharge plate 9. The limiting plate and the support plate 10 are an integral structure, which restricts the discharge plate 9 from rotating downwards. The distance between the two discharge plates 9 is greater than the outer diameter of the tensioning plate 3 and less than the outer diameter of the sample sieve 7. The distance between the two limiting plates 11 is greater than the outer diameter of the sample sieve 7. The sample sieve 7 moves upwards synchronously with the tensioning plate 3. The sample sieve 7 pushes the discharge plate 9 to rotate upwards (the discharge plate 9 cannot make the sample sieve 7 fall directly off the tensioning plate 3). After the sample sieve 7 passes through the discharge plate 9, the discharge plate 9 resets due to gravity. After the sample sieve 7 falls off the tensioning plate 3, the lower end of the sample sieve 7 slides downwards along the discharge plate 9.

[0019] Example 2 This embodiment is basically the same as Embodiment 1, except that: Figure 1 As shown, the bracket includes a base plate 12, a positioning groove 2 fixed on the base plate 12, and uprights 13 fixed on all four sides of the base plate 12. The upper ends of the uprights 13 on the same side are connected by connecting plates 14. The internal threaded cylinder 5 is fixed between the two connecting plates 14, and the support plate 10 is fixedly connected to the uprights 13.

[0020] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sample sieve tensioning device, including a support frame, characterized in that: The bottom of the support is provided with a positioning groove, and a rotating and lifting tensioning plate is provided above the positioning groove. A retaining ring is provided on the support above the positioning groove. The retaining ring is used for the detachment of the sample sieve on the tensioning plate. The positioning groove, tensioning plate and retaining ring are arranged on the same axis. The inner diameter of the retaining ring is larger than the outer diameter of the tensioning plate and smaller than the outer diameter of the sample sieve. A discharge component is also provided between the retaining ring and the positioning groove.

2. The sample sieve tensioning device according to claim 1, characterized in that: The discharge assembly includes two parallel and spaced discharge plates that are inclined downwards. The discharge plates are hinged to the support and a limit plate is fixed on the support. The limit plate is located at the lower end of the discharge plate and restricts the discharge plate from rotating downwards. The distance between the two discharge plates is greater than the outer diameter of the tensioning disc and less than the outer diameter of the sieve. The distance between the two limit plates is greater than the outer diameter of the molecular sieve.

3. The sample sieve tensioning device according to claim 1, characterized in that: The upper end of the tensioning disc is fixed with a coaxial threaded rod. The upper end of the threaded rod is threaded through the top of the bracket and connected to the drive mechanism.

4. The sample sieve tensioning device according to claim 3, characterized in that: The drive mechanism is a rotary handle.

5. The sample sieve tensioning device according to claim 3, characterized in that: An internally threaded cylinder is fixed to the top of the bracket, and the upper thread of the threaded rod passes through the internally threaded cylinder.

6. The sample sieve tensioning device according to claim 5, characterized in that: The support includes a base plate, with uprights fixed on all four sides of the base plate. The upper ends of the uprights on the same side are connected by connecting plates, and an internally threaded cylinder is fixed between the two connecting plates.

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