Novel side-pressing high square screen

Abstract

The application discloses a novel side-pressing high square screen, which comprises a screen top grid, an adjusting base arranged in the screen top grid and an adjusting and pressing mechanism arranged in the adjusting base. The adjusting base comprises a base, an adjusting groove arranged in the base and in sliding connection with the adjusting and pressing mechanism. The adjusting and pressing mechanism comprises a screw rod, a rotary driving head, a positive sliding assembly, a reverse sliding assembly, an adjusting assembly, a screen box top plate, a sliding opening, a bottom plate and a shield. The side-pressing high square screen can press the screen top grid without the operator standing on the top end of the screen, and the operator can press the screen top grid in the direction of the screen door, so that the operation of the operator is facilitated. The adjusting and pressing mechanism of the application applies pressure to the screen top grid from four points, so that the screen top grid can apply balanced pressure to the screen grid, the sealing effect is improved, and the adjusting screw rod will not be displaced due to vibration during the operation of the equipment, so that the pressing effect is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of high square screen technology, and in particular to a novel side-pressed high square screen. Background Technology

[0002] The high-grid sieve, as one of the three main machines in a flour mill, plays a crucial role in flour sieving. The traditional clamping mechanism uses a vertical screw to move the top grid of the sieve up and down, with the screw located at the top of the sieve chamber. Adjustment grooves are located on both sides of the top grid, with a rotatable adjustment screw in the center. Applying torque to the adjustment screw raises and lowers the top grid. A sealing strip is fixed around the top grid to ensure vertical movement. However, due to installation precision issues with the sealing strip and manufacturing errors, the pressure exerted by the sealing strip on the top grid can vary. The screw's pulling action can cause the top grid to move non-vertically, resulting in uneven pressure on the lower sieve grids and affecting the sealing effect. Excessive assembly errors can even cause the adjustment screw to bend or break. Furthermore, the adjustment screw is located above the sieve body, requiring operators to climb to adjust the grids, which is inconvenient.

[0003] In summary, traditional clamping mechanisms require operators to stand on top of the high square screen to clamp the screen grids, which is inconvenient. Due to the resistance of the top grid sealing strip and the influence of processing accuracy, the top grid may not be horizontal during the rising or falling process, resulting in inconsistent clamping force of the top grid on different points of the screen grids and affecting the sealing effect between the screen grids. Summary of the Invention

[0004] The purpose of this invention is to provide a novel side-pressing high square screen, which solves the problems mentioned in the background art of traditional pressing mechanisms, such as the need for operators to climb to heights, inconvenience in operation, and uneven pressure between the top screen and the bottom screen, which affects the sealing effect.

[0005] The present invention adopts the following technical solution:

[0006] The present invention discloses a novel side-pressing high square screen, comprising a screen top grid, an adjusting base disposed within the screen top grid, and an adjusting pressing mechanism disposed within the adjusting base.

[0007] The adjusting base is fixedly connected to the top grid of the screen by bolts. The adjusting base includes a base and two adjusting grooves arranged in an inverted octagon shape are provided in the base. The adjusting grooves are slidably connected to the adjusting and pressing mechanism.

[0008] The adjusting and pressing mechanism includes a screw, one end of which is fixedly connected to a rotary drive head. A forward sliding component and a reverse sliding component are threaded onto the screw. An adjusting component is provided between the forward sliding component and the reverse sliding component. The adjusting component is movably sleeved on the screw and is fixedly connected to the top plate of the screen box. A sliding opening is provided on the top plate of the screen box. The forward sliding component and the reverse sliding component slide with the sliding opening. A limiting piece is provided on the sliding opening, and the limiting piece is fixed to the top plate of the screen box by bolts.

[0009] The screw has positive and negative threads on both sides of the adjusting assembly. The positive thread of the screw is threaded to the positive sliding assembly, and the negative thread of the screw is threaded to the negative sliding assembly.

[0010] Furthermore, a protective cover is provided on the outside of the screw, the protective cover is provided with a reserved hole, the screw passes through the reserved hole of the protective cover, the rotary drive head is provided on the outside of the protective cover, and a baffle plate is provided between the rotary drive head and the protective cover.

[0011] Furthermore, the sliding port includes an inlet and a sliding groove, and the limiting piece is disposed on the sliding groove.

[0012] Furthermore, the positive sliding assembly includes a positive sliding sleeve, which is threaded onto the screw. A positive sliding guide block is screwed to the lower part of the positive sliding sleeve, and a positive sliding guide roller is provided at the lower end of the positive sliding guide block. The positive sliding guide roller is embedded and slidably engaged with one of the adjustment grooves.

[0013] The anti-slip assembly includes an anti-slip sleeve, which is threaded onto the screw. An anti-slip guide block is screwed to the lower part of the anti-slip sleeve, and an anti-slip guide roller is provided at the lower end of the anti-slip guide block. The anti-slip guide roller is slidably engaged with another adjustment groove.

[0014] Furthermore, the positive sliding sleeve and the negative sliding sleeve are located above the top plate of the screen box, and the positive sliding guide block and the negative sliding guide block are located below the top plate of the screen box.

[0015] Furthermore, the adjusting assembly includes a positive adjusting nut and a negative adjusting nut, which are threaded onto the screw. A support block is provided between the positive adjusting nut and the negative adjusting nut, and the support block is bolted to the top plate of the screen box.

[0016] The support block is movably sleeved on the screw. Springs are provided between the support block and the positive adjusting nut, and between the support block and the negative adjusting nut. Washers are provided between the springs and the positive adjusting nut and the negative adjusting nut, and washers are provided between the springs and the support block.

[0017] Furthermore, the positive adjusting nut and the negative adjusting nut are provided with set screws, which are tightly pressed against the screw.

[0018] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0019] 1. In this invention, when tightening the top grid of the high-square screen, the operator does not need to stand on the top of the high-square screen; the top grid can be tightened from the screen door direction. A screw with a forward and reverse adjusting nut is provided at the top of the screen chamber. The screw has two sliding components. The operator stands in the screen door direction and rotates the screw forward or backward, causing the two sliding components to move closer or further apart. The sliding components include a sliding guide block, on which a sliding guide roller is provided. The movement of the sliding guide roller within the top grid adjusting groove causes the top grid to move up and down within the screen chamber.

[0020] 2. The present invention has two symmetrical adjustment and pressing mechanisms, each with two pressure points (positive and negative sliding guide blocks), totaling four points that apply pressure to the top of the screen. The pressure at the four points can be controlled by adjusting the spring pressure, ensuring that the pressure of the top of the screen on the screen is balanced and improving the sealing effect.

[0021] 3. The adjusting mechanism of this invention has a self-locking function, so the adjusting screw will not be displaced due to vibration when the equipment is running, thus ensuring the clamping effect.

[0022] In summary, the side-clamping high square screen of the present invention allows operators to clamp the top screen without having to stand on the top of the high square screen. The clamping can be performed from the screen door direction, which facilitates operation. Furthermore, the clamping mechanism of the present invention applies pressure to the top screen at four points, ensuring balanced pressure between the top screen and the screen, thus improving the sealing effect. In addition, it has a self-locking function, preventing the adjusting screw from shifting due to vibration during equipment operation, ensuring the clamping effect. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 This is a front view of a novel side-pressing high square screen according to the present invention;

[0025] Figure 2 This is a structural diagram of a novel side-pressing high square screen according to the present invention;

[0026] Figure 3This is a main structural diagram of a novel side-clamping high square screen adjusting clamping mechanism of the present invention;

[0027] Figure 4 This is a schematic diagram of the sliding port structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the forward sliding component, the adjusting component, and the reverse sliding component of the present invention;

[0029] Figure 6 This is a left view of the adjusting and clamping mechanism of the present invention;

[0030] Figure 7 This is a left view of the cross-section of the support block of the present invention;

[0031] Figure 8 This is a left view of the anti-sliding component of the present invention.

[0032] Explanation of reference numerals in the attached drawings: 1. Adjusting and clamping mechanism; 1-1. Rotary drive head; 1-2. Protective cover; 1-3. Screw; 1-4. Forward sliding assembly; 1-4-1. Forward sliding sleeve; 1-4-2. Forward sliding guide block; 1-4-3. Forward sliding guide roller; 1-5. Reverse sliding assembly; 1-5-1. Reverse sliding sleeve; 1-5-2. Reverse sliding guide block; 1-5-3. Reverse sliding guide roller; 1-6. Adjusting assembly ; 1-6-1, Positive Adjusting Nut; 1-6-2, Reverse Adjusting Nut; 1-6-3, Support Block; 1-6-4, Spring; 1-6-5, Washer; 1-6-6, Top Screw; 1-7, Screen Box Top Plate; 1-8, Sliding Port; 1-8-1, Loading Inlet; 1-8-2, Sliding Groove; 1-9, Limiting Plate; 1-10, Baffle Plate; 2, Screen Top Grid; 3, Adjusting Base; 3-1, Base; 3-2, Adjusting Groove. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] like Figure 1 As shown, this embodiment discloses a novel side-pressing high square screen, including a screen top grid 2, an adjusting base 3 is provided inside the screen top grid 2, and an adjusting pressing mechanism 1 is provided inside the adjusting base 3.

[0035] like Figure 2 As shown, the adjusting base 3 is fixedly connected to the top grid 2 of the screen by bolts. The adjusting base 3 includes a base 3-1, and two adjusting grooves 3-2 arranged in an inverted octagon shape are provided in the base 3-1. The adjusting grooves 3-2 are slidably connected to the adjusting and pressing mechanism 1.

[0036] The inclination angle of the groove of the adjusting groove 3-2 can be set in the range of 22 degrees to 25 degrees. In this embodiment, the inclination angle of the groove of the adjusting groove 3-2 is specifically 22 degrees.

[0037] like Figure 3 and Figure 4 As shown, the adjusting clamping mechanism 1 includes a screw 1-3, one end of which is fixedly connected to a rotary drive head 1-1. In this embodiment, the rotary drive head 1-1 is a rotary bolt, which can be driven to rotate using tools such as a hex wrench. A forward sliding component 1-4 and a reverse sliding component 1-5 are threaded onto the screw 1-3. An adjusting component 1-6 is disposed between the forward sliding component 1-4 and the reverse sliding component 1-5. The adjusting component 1-6 is movably sleeved on the screw 1-3 and is fixedly connected to the top plate 1-7 of the screen box. A sliding opening 1-8 is provided on the top plate 1-7 of the screen box, and the forward sliding component 1-4 and the reverse sliding component 1-5 slide in cooperation with the sliding opening 1-8. A limiting piece 1-9 is provided on the sliding opening 1-8, and the limiting piece 1-9 is fixed to the top plate 1-7 of the screen box by bolts.

[0038] The screw 1-3 has positive and negative threads on both sides of the adjusting assembly 1-6. The positive thread of the screw 1-3 is threaded to the positive sliding assembly 1-4, and the negative thread of the screw 1-3 is threaded to the negative sliding assembly 1-5.

[0039] A protective cover 1-2 is provided on the outside of the screw 1-3. The protective cover 1-2 has a reserved hole, through which the screw 1-3 passes. The rotary drive head 1-1 is located on the outside of the protective cover 1-2. A baffle plate 1-10 is provided between the rotary drive head 1-1 and the protective cover 1-2. The baffle plate 1-10 plays a role in assisting in fastening and sealing between the rotary drive head 1-1 and the reserved hole of the protective cover 1-2.

[0040] The sliding port 1-8 includes an inlet 1-8-1 and a sliding groove 1-8-2, with a limiting piece 1-9 disposed on the sliding groove 1-8-2. The inlet 1-8-1 is used to load the forward sliding guide block 1-4-2 and the reverse sliding guide block 1-5-2. After loading, the limiting piece 1-9 is installed. The limiting piece 1-9 limits the travel of the forward sliding guide block 1-4-2 and the reverse sliding guide block 1-5-2, preventing them from falling off after moving into the inlet 1-8-1.

[0041] like Figure 5 and Figure 6As shown, the positive sliding assembly 1-4 includes a positive sliding sleeve 1-4-1, which is threaded onto the screw 1-3. A positive sliding guide block 1-4-2 is connected to the lower part of the positive sliding sleeve 1-4-1 by a screw. A positive sliding guide roller 1-4-3 is provided at the lower end of the positive sliding guide block 1-4-2. The positive sliding guide roller 1-4-3 is embedded and slidably engaged with one of the adjusting grooves 3-2.

[0042] like Figure 5 and Figure 8 As shown, the anti-sliding assembly 1-5 includes an anti-sliding sleeve 1-5-1, which is threaded onto the screw 1-3. An anti-sliding guide block 1-5-2 is connected to the lower part of the anti-sliding sleeve 1-5-1 by a screw. An anti-sliding guide roller 1-5-3 is provided at the lower end of the anti-sliding guide block 1-5-2. The anti-sliding guide roller 1-5-3 is engaged with another adjusting groove 3-2 in a sliding fit.

[0043] The forward sliding sleeve 1-4-1 and the reverse sliding sleeve 1-5-1 are located above the top plate 1-7 of the screen box, and the forward sliding guide block 1-4-2 and the reverse sliding guide block 1-5-2 are located below the top plate 1-7 of the screen box.

[0044] like Figure 5 and Figure 7 As shown, the adjusting assembly 1-6 includes a positive adjusting nut 1-6-1 and a negative adjusting nut 1-6-2. The positive adjusting nut 1-6-1 and the negative adjusting nut 1-6-2 are threaded onto the screw 1-3. A support block 1-6-3 is provided between the positive adjusting nut 1-6-1 and the negative adjusting nut 1-6-2. The support block 1-6-3 is bolted to the top plate 1-7 of the screen box.

[0045] The support block 1-6-3 is movably sleeved on the screw 1-3. Springs 1-6-4 are provided between the support block 1-6-3 and the positive adjusting nut 1-6-1, and between the support block 1-6-3 and the negative adjusting nut 1-6-2. Washers 1-6-5 are provided between the springs 1-6-4 and the positive adjusting nut 1-6-1 and the negative adjusting nut 1-6-2, and washers 1-6-5 are provided between the springs 1-6-4 and the support block 1-6-3.

[0046] The positive adjusting nut 1-6-1 and the negative adjusting nut 1-6-2 are equipped with set screws 1-6-6, which are tightly pressed against the screw 1-3.

[0047] In this embodiment, two symmetrical adjusting and pressing mechanisms 1 are provided. Each adjusting and pressing mechanism 1 has two pressure points: a forward sliding component 1-4 and a reverse sliding component 1-5, for a total of four points applying pressure to the top of the screen. By manually turning the forward adjusting nut 1-6-1 and the reverse adjusting nut 1-6-2, the spring 1-6-4 is compressed. After fixing the set screw 1-6-6, since the support block 1-6-3 is fixedly connected to the top plate 1-7 of the screen box, the spring 1-6-4 pushes the forward adjusting nut 1-6-1 and the reverse adjusting nut 1-6-2 to move to the left or right under its own tension. This, in turn, pushes the screw 1-3 to move the forward sliding guide block 1-4-2 and the reverse sliding guide block 1-5-2, thereby controlling the position of the forward sliding guide block 1-4-2 and the reverse sliding guide block 1-5-2 on the adjusting groove 3-2, so that the top of the screen 2 is parallel to the top plate 1-7 of the screen box, thereby controlling the magnitude of the pressure at the four points and ensuring that the pressure of the top of the screen 2 on the screen is balanced.

[0048] In this embodiment, the top plate 1-7 of the screen box is the upper top plate of the screen box, and the screen top grid 2 is inside the screen box. The pressure of the adjusting base 3 can be adjusted by adjusting the pressing mechanism 1, thereby realizing the rise or fall of the screen top grid 2 inside the screen box.

[0049] Combination Figures 1 to 8 As shown, the operation process of this invention is as follows:

[0050] When the rotary drive head 1-1 is rotated in the adjusting clamping mechanism 1, it drives the screw 1-3 to rotate forward or reverse. At this time, because a washer 1-6-5 is provided between the positive adjusting nut 1-6-1 and the negative adjusting nut 1-6-2 and the spring 1-6-4, the spring 1-6-4 is not affected when the screw 1-3 rotates. Under the action of the positive and negative threads of the screw 1-3, the positive sliding sleeve 1-4-1 and the negative sliding sleeve 1-5-1 move simultaneously towards the support block 1-6-3 or simultaneously away from the support block 1-6-3. This drives the positive sliding guide block 1-4-2 and the negative sliding guide block 1-5-2 to move towards the center or to both sides. The positive sliding guide roller 1-4-3 and the negative sliding guide roller 1-5-3 move within the adjusting groove 3-2, causing the adjusting base 3 to move upward or downward. The adjusting base 3 is bolted to the screen top grid 2, thereby realizing the upward or downward movement of the screen top grid 2.

[0051] When the top grid 2 of the screen is unstable, loosen the set screw 1-6-6, adjust the position of the positive adjusting nut 1-6-1 and the negative adjusting nut 1-6-2 on the screw 1-3, control the deformation of the spring 1-6-4, and then fix the set screw 1-6-6 so that the positive adjusting nut 1-6-1 and the negative adjusting nut 1-6-2 are fixed on the screw 1-3. Since the support block 1-6-3 and the top plate 1-7 of the screen box are bolted together, the position of the support block 1-6-3 is fixed. The spring 1-6-4 will relax under its own tension, thereby pushing the screw 1-3 to move to the left or right, and thus driving the positive sliding guide block 1-4-2 and the negative sliding guide block 1-5-2 to move on the adjusting groove 3-2. This controls the relative distance between the positive sliding guide block 1-4-2 and the negative sliding guide block 1-5-2 and the support block 1-6-3, so that the positions of the positive sliding guide block 1-4-2 and the negative sliding guide block 1-5-2 on the adjusting groove 3-2 are slightly adjusted, thereby adjusting the pressure of the adjusting base 3, ensuring the consistency of the pressure of the adjusting clamping mechanism 1 on the adjusting base 3, and thus realizing the pressure adjustment of the screen top grid 2 by the adjusting clamping mechanism 1.

[0052] When the top screen 2 presses against the screen grid inside the screen box, it experiences an upward reaction force from the screen grid. This top screen 2 then applies an upward preload to the forward sliding assembly 1-4 and the reverse sliding assembly 1-5. Ultimately, the forward sliding assembly 1-4 and the reverse sliding assembly 1-5 transmit this preload to the screw 1-3, making it less prone to loosening. The up-and-down movement of the top screen is achieved through the torque of the screw 1-3. The force is reversed; the high-square screen rotates along the horizontal plane during operation, while the force on the screw 1-3 is perpendicular to the horizontal plane. Based on these two points, it is difficult for the screw 1-3 to rotate during the operation of the high-square screen. Therefore, the adjustment mechanism of this invention has a self-locking function, preventing the adjustment screw 1-3 from shifting due to vibration during equipment operation, thus ensuring the pressing effect.

[0053] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A novel side-pressed high square screen, characterized in that: Includes a sieve top grid (2), wherein an adjusting base (3) is provided inside the sieve top grid (2), and an adjusting pressing mechanism (1) is provided inside the adjusting base (3); The adjusting base (3) is fixedly connected to the top grid (2) of the screen by bolts. The adjusting base (3) includes a base (3-1). The base (3-1) is provided with two adjusting grooves (3-2) arranged in an inverted octagon shape. The adjusting grooves (3-2) are slidably connected to the adjusting pressing mechanism (1). The adjusting and pressing mechanism (1) includes a screw (1-3), one end of which is fixedly connected to a rotary drive head (1-1). A forward sliding component (1-4) and a reverse sliding component (1-5) are threaded onto the screw (1-3). An adjusting component (1-6) is provided between the forward sliding component (1-4) and the reverse sliding component (1-5). The adjusting component (1-6) is movably sleeved on the screw (1-3). The adjusting component (1-6) is fixedly connected to the top plate (1-7) of the screen box. A sliding port (1-8) is provided on the top plate (1-7). The forward sliding component (1-4) and the reverse sliding component (1-5) slide in cooperation with the sliding port (1-8). A limiting piece (1-9) is provided on the sliding port (1-8). The limiting piece (1-9) is fixed to the top plate (1-7) of the screen box by bolts. The screw (1-3) is provided with positive and negative threads on both sides of the adjusting assembly (1-6). The positive thread of the screw (1-3) is threaded to the positive sliding assembly (1-4), and the negative thread of the screw (1-3) is threaded to the negative sliding assembly (1-5). The adjusting assembly (1-6) includes a positive adjusting nut (1-6-1) and a negative adjusting nut (1-6-2). The positive adjusting nut (1-6-1) and the negative adjusting nut (1-6-2) are threaded onto the screw (1-3). A support block (1-6-3) is provided between the positive adjusting nut (1-6-1) and the negative adjusting nut (1-6-2). The support block (1-6-3) is bolted to the top plate (1-7) of the screen box. The support block (1-6-3) is movably sleeved on the screw (1-3). A spring (1-6-4) is provided between the support block (1-6-3) and the positive adjusting nut (1-6-1), and between the support block (1-6-3) and the negative adjusting nut (1-6-2). A washer (1-6-5) is provided between the spring (1-6-4) and the positive adjusting nut (1-6-1) and the negative adjusting nut (1-6-2). A washer (1-6-5) is also provided between the spring (1-6-4) and the support block (1-6-3). A set screw (1-6-6) is provided on the positive adjusting nut (1-6-1) and the negative adjusting nut (1-6-2), and the set screw (1-6-6) abuts against the screw (1-3). The positive sliding assembly (1-4) includes a positive sliding sleeve (1-4-1), the positive sliding sleeve (1-4-1) A threaded sleeve is fitted onto the screw (1-3). A positive sliding guide block (1-4-2) is screwed to the lower part of the positive sliding sleeve (1-4-1). A positive sliding guide roller (1-4-3) is provided at the lower end of the positive sliding guide block (1-4-2). The positive sliding guide roller (1-4-3) is engaged with one of the adjustment grooves (3-2) in a sliding fit. The anti-slip assembly (1-5) includes an anti-slip sleeve (1-5-1), which is threaded onto the screw (1-3). An anti-slip guide block (1-5-2) is screwed to the lower part of the anti-slip sleeve (1-5-1). An anti-slip guide roller (1-5-3) is provided at the lower end of the anti-slip guide block (1-5-2). The anti-slip guide roller (1-5-3) is engaged with another adjustment groove (3-2) in a sliding fit.

2. The novel side-pressed high square screen according to claim 1, characterized in that: A protective cover (1-2) is provided on the outside of the screw (1-3). The protective cover (1-2) is provided with a reserved hole. The screw (1-3) passes through the reserved hole of the protective cover (1-2). The rotary drive head (1-1) is provided on the outside of the protective cover (1-2). A baffle plate (1-10) is provided between the rotary drive head (1-1) and the protective cover (1-2).

3. The novel side-pressed high square screen according to claim 1, characterized in that: The sliding port (1-8) includes an inlet (1-8-1) and a sliding groove (1-8-2), and the limiting piece (1-9) is disposed on the sliding groove (1-8-2).

4. The novel side-pressed high square screen according to claim 1, characterized in that: The positive sliding sleeve (1-4-1) and the negative sliding sleeve (1-5-1) are located above the top plate (1-7) of the sieve box, and the positive sliding guide block (1-4-2) and the negative sliding guide block (1-5-2) are located below the top plate (1-7) of the sieve box.

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