Comb tooth sieve plate with adjustable sieve pores
By introducing a sliding groove, slider, and gear worm gear adjustment mechanism into the comb-tooth screen plate, the screen aperture adjustment process is simplified, solving the problem of cumbersome operation in the existing technology and realizing efficient and precise screen aperture adjustment.
Patent Information
- Application Number
- CN202520085161.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-13
AI Technical Summary
The existing adjustable mesh comb screen plate is cumbersome to operate, requiring the loosening and tightening of multiple bolts one by one, which affects production efficiency and labor costs, especially when the mesh size is frequently adjusted.
The adjustment mechanism, consisting of a chute, slider, mounting frame, and gear worm, allows for sliding adjustment of the comb plate by rotating the dial wheel to drive the worm and worm wheel, thus simplifying the screen hole adjustment process.
It greatly simplifies the sieve aperture adjustment process, saves time and labor costs, improves adjustment accuracy and stability, and achieves precise adjustment of sieve aperture size.
Smart Images

Figure CN223788933U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sieve hole adjustment technology for comb-tooth sieve plates, specifically a comb-tooth sieve plate with adjustable sieve holes. Background Technology
[0002] A toothed screen plate is a widely used component in screening equipment. It is named for its unique comb-like structure. Material screening is the most important function of a toothed screen plate. It is used in industries such as mining, metallurgy, building materials, and chemicals to classify various materials by particle size.
[0003] The existing adjustable comb-tooth screen plate requires operators to use auxiliary tools such as auxiliary wrenches to loosen the locking bolts around the movable tooth plates one by one, manually move the movable tooth plates at the bottom to observe the size of the screen holes, and then fix the movable tooth plates with the locking bolts after adjustment.
[0004] Existing adjustable toothed screen plates require operators to loosen and tighten multiple bolts each time the screen aperture is adjusted. This process involves many steps and is time-consuming. It is especially problematic when the screen aperture needs to be adjusted frequently to adapt to different materials or production process changes, which seriously affects production efficiency. Due to the cumbersome operation, a lot of manpower and time are required for screen aperture adjustment. Therefore, we propose an adjustable toothed screen plate. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a comb-tooth sieve plate with adjustable sieve holes, which greatly simplifies the adjustment process, saves adjustment time and labor costs, has high transmission accuracy and stability, and realizes precise adjustment of sieve hole size, which can effectively solve the problems in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable sieve plate with comb teeth, comprising a sieve frame, wherein the left and right inner walls of the sieve frame are provided with uniformly distributed comb teeth, and further comprising an adjustment mechanism;
[0007] Adjustment mechanism: It includes a chute, a slider, a mounting frame, and a second comb plate. The chute is provided on the inner rear wall of the screen frame. The second comb plate is evenly distributed between the left and right inner walls of the mounting frame. The slider is provided on the rear side of the mounting frame. The outside of the slider is slidably connected to the inner wall of the chute. The first comb plate is located on the upper side of the second comb plate. This greatly simplifies the adjustment process, saves adjustment time and labor costs, and has high transmission accuracy and stability, enabling precise adjustment of the screen hole size.
[0008] Furthermore, the adjustment mechanism also includes a rack plate, a rotating column, and a gear. The front side of the mounting frame is provided with a rack plate, and the inner front wall of the screen frame is rotatably connected to a rotating column. The rear end of the rotating column is fixedly sleeved with a gear, which meshes with the rack plate to achieve stable sliding of the mounting frame.
[0009] Furthermore, the adjustment mechanism also includes a worm gear and a worm. The worm gear is fixedly sleeved on the outside of the rotating column, and the worm is rotatably connected between the upper and lower inner walls of the front end of the screen frame. The worm gear and the worm are meshed together to ensure stable operation of the adjustment mechanism.
[0010] Furthermore, a dial wheel is fixedly connected to one end of the worm gear extending from the bottom wall of the screen frame, and an auxiliary rod is fixedly connected to the outside of the dial wheel to facilitate the use of the adjustment mechanism.
[0011] Furthermore, the width of the mounting frame is smaller than the width of the screen frame, ensuring that the mounting frame can slide inside the screen frame.
[0012] Furthermore, rectangular grooves are provided at the edges of the upper surface of the screen frame, and mounting holes are provided on the bottom walls of the rectangular grooves to ensure stable use of the comb-tooth screen plate.
[0013] Furthermore, support rods are respectively provided at the bottom ends between the left and right inner walls of the screen frame, and the upper surfaces of the three support rods are slidably connected to the lower surface of the mounting frame to prevent the mounting frame from falling off.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This adjustable-aperture comb-tooth sieve plate has the following advantages:
[0015] By rotating the dial wheel, the worm gear rotates. Under the action of the meshing worm wheel, the rotating column drives the gear to start rotating, which in turn causes the rack plate to drive the comb plate two to slide inside the screen frame under the limit of the slider in the slide groove and the support of the support rod. This achieves the adjustment of the screen hole size. Each time the screen hole is adjusted, the operator does not need to loosen and tighten multiple bolts one by one. The operation steps are simple and time-saving, saving adjustment time and labor costs. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the exploded structure of the sieve frame of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the sieve frame of this utility model before explosion;
[0019] Figure 4 This is an enlarged structural diagram of point A of this utility model.
[0020] In the diagram: 1. Screen frame, 2. Comb plate one, 3. Support rod, 4. Rectangular groove, 5. Mounting hole, 6. Adjustment mechanism, 61. Slide groove, 62. Slider, 63. Mounting frame, 64. Comb plate two, 65. Rack plate, 66. Rotary column, 67. Gear, 68. Worm gear, 69. Worm, 7. Dial wheel. 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] Please see Figure 1-4 This embodiment provides a technical solution: an adjustable comb-tooth screen plate, including a screen frame 1, with uniformly distributed comb-tooth plates 2 on the left and right inner walls of the screen frame 1, and an adjustment mechanism 6. The width of the mounting frame 63 is smaller than the width of the screen frame 1. Rectangular grooves 4 are respectively opened at the edge of the upper surface of the screen frame 1, and mounting holes 5 are respectively opened on the bottom wall of the rectangular grooves 4. Support rods 3 are respectively provided at the bottom between the left and right inner walls of the screen frame 1. The upper surfaces of the three support rods 3 are slidably connected to the lower surface of the mounting frame 63. When the comb-tooth screen plate is used, the screen frame 1 is first fixedly installed on the vibrating device through the mounting holes 5 inside the rectangular grooves 4. The material is poured into the upper surface of the screen frame 1 and vibrated by the vibrating device. The material will be screened by the comb-tooth plates 2.
[0023] Adjustment mechanism 6 includes a chute 61, a slider 62, a mounting frame 63, and a comb plate 64. The chute 61 is located on the rear inner wall of the screen frame 1. The comb plates 64 are evenly distributed between the left and right inner walls of the mounting frame 63. The slider 62 is located on the rear side of the mounting frame 63, and its outer side is slidably connected to the inner wall of the chute 61. The comb plates 64 are all located on the upper side of the comb plates 64. Adjustment mechanism 6 also includes a rack plate 65, a rotating column 66, and a gear 67. The rack plate 65 is located on the front side of the mounting frame 63. The rotating column 66 is rotatably connected to the front inner wall of the screen frame 1. A gear 67 is fixedly sleeved at the rear end of the rotating column 66, and the gear 67 meshes with the rack plate 65. Adjustment mechanism 6 also includes a worm gear 68 and a worm 69. The worm gear 68 is fixedly sleeved on the outer side of the rotating column 66. A worm 69 is rotatably connected between the upper and lower inner walls of the front end of the screen frame 1. The worm gear 68 meshes with the rack plate 65. The worm gear 69 is engaged with the bottom wall of the screen frame 1 and is fixedly connected to a dial wheel 7. An auxiliary rod is fixedly connected to the outside of the dial wheel 7. When different particle sizes of materials are required, the dial wheel 7 is rotated to drive the worm gear 69 to start rotating, which causes the worm wheel 68 to drive the rotating column 66 to start rotating. Through the rotation of the rotating column 66, the meshing rack plate 65 drives the mounting frame 63 to move. The mounting frame 63, with the slider 62 on the rear side sliding inside the slide groove 61 and supported by the upper surface of the support rod 3, causes the mounting frame 63 to drive the comb plate 64 to slide inside the screen frame 1. By adjusting the position of the comb plate 64, so that the comb plate 64 covers part of the tooth shape of the comb plate 2, the two are misaligned, and the screen hole will become smaller. Conversely, when the tooth shape of the comb plate 64 and the comb plate 2 overlap, the screen hole will become larger. When the appropriate screen hole size is adjusted, the dial wheel 7 is stopped.
[0024] The working principle of the adjustable-aperture comb-tooth screen plate provided by this utility model is as follows: When using the comb-tooth screen plate, firstly, the screen frame 1 is fixedly installed on the vibrating equipment through the mounting holes 5 inside the rectangular groove 4. The material is poured into the upper surface of the screen frame 1. Through the vibration of the vibrating equipment, the material will be screened by the comb-tooth plate 2. When different particle sizes of materials are required, the dial wheel 7 is rotated to drive the worm gear 69 to start rotating, so that the worm wheel 68 drives the rotating column 66 to start rotating. Through the rotation of the rotating column 66, the toothed plate 65 is engaged. The mounting frame 63 is moved, and the mounting frame 63 will slide inside the slide groove 61 with the slider 62 on the rear side and be supported on the upper surface of the support rod 3. This causes the mounting frame 63 to drive the comb plate 64 to slide inside the screen frame 1. By adjusting the position of the comb plate 64, so that the comb plate 64 covers part of the tooth shape of the comb plate 2, the two will be misaligned, and the screen hole will become smaller. Conversely, when the tooth shape of the comb plate 64 and the comb plate 2 overlap, the screen hole will become larger. After adjusting to the appropriate screen hole size, stop rotating the dial wheel 7.
[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A comb-tooth sieve plate with adjustable sieve aperture, comprising a sieve frame (1), wherein the left and right inner walls of the sieve frame (1) are provided with uniformly distributed comb-tooth plates (2), characterized in that: It also includes an adjustment mechanism (6); Adjustment mechanism (6): It includes a chute (61), a slider (62), a mounting frame (63), and a comb plate (64). The chute (61) is provided on the rear inner wall of the screen frame (1). The comb plates (64) are evenly distributed between the left and right inner walls of the mounting frame (63). The slider (62) is provided on the rear side of the mounting frame (63). The outside of the slider (62) is slidably connected to the inner wall of the chute (61). The comb plates (2) are all located on the upper side of the comb plates (64).
2. The adjustable-aperture comb-tooth sieve plate according to claim 1, characterized in that: The adjustment mechanism (6) also includes a rack plate (65), a rotating column (66) and a gear (67). The front side of the mounting frame (63) is provided with a rack plate (65), and the inner wall of the front side of the screen frame (1) is rotatably connected to the rotating column (66). The rear end of the rotating column (66) is fixedly sleeved with a gear (67), and the gear (67) meshes with the rack plate (65).
3. The adjustable-aperture comb-tooth sieve plate according to claim 2, characterized in that: The adjustment mechanism (6) also includes a worm wheel (68) and a worm (69). The worm wheel (68) is fixedly sleeved on the outside of the rotating column (66). The worm (69) is rotatably connected between the upper and lower inner walls of the front end of the screen frame (1). The worm wheel (68) and the worm (69) are meshed together.
4. The adjustable-aperture comb-tooth sieve plate according to claim 3, characterized in that: The worm gear (69) extends out of the bottom wall of the screen frame (1) and is fixedly connected to a dial wheel (7). An auxiliary rod is fixedly connected to the outside of the dial wheel (7).
5. The adjustable-aperture comb-tooth sieve plate according to claim 1, characterized in that: The width of the mounting frame (63) is smaller than the width of the sieve frame (1).
6. The adjustable-aperture comb-tooth sieve plate according to claim 1, characterized in that: The upper surface edge of the screen frame (1) is provided with rectangular grooves (4), and the bottom wall of the rectangular grooves (4) is provided with mounting holes (5).
7. The adjustable-aperture comb-tooth sieve plate according to claim 1, characterized in that: Support rods (3) are respectively provided at the bottom ends between the left and right inner walls of the screen frame (1), and the upper surfaces of the three support rods (3) are slidably connected to the lower surface of the mounting frame (63).