A feeding mechanism and sand mixer thereof
By designing an adjustment mechanism for the feeding mechanism, the problem of mismatched feeding height in the sand mixer was solved, achieving precise and efficient feeding of sand and adapting to the needs of different conveying heights.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN HANHUA HEAVY EQUIP MFG CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-10
AI Technical Summary
When adjusting the feeding height of the existing sand mixer, the distance between the discharge hopper and the feed inlet of the sand mixer is not matched, causing some sand to fall outside and affecting the feeding efficiency.
A feeding mechanism was designed, including a feeding bin, a screen, a guide hopper, and an adjustment mechanism. Through the cooperation of a fixed pipe, a bearing pipe, and fastening components, the height of the discharge frame can be flexibly adjusted to ensure that the sand material accurately enters the sand mixer.
It effectively prevents sand from splashing to the outside, improves the accuracy and efficiency of feeding, and adapts to the needs of different conveying heights.
Smart Images

Figure CN224475568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand mixer feeding, and in particular to a feeding mechanism and a sand mixer thereof. Background Technology
[0002] A sand mixer is typically a device that mixes the components in molding sand evenly and effectively coats the sand particles with binder. Sand mixers are usually equipped with a feeding mechanism to allow sand to be added to its inlet.
[0003] Application No. 202220558566.6 describes a feeding mechanism for a sand mixer, including a fixed mounting bracket, a movable mounting bracket, a vibrator, and a feeding hopper. The movable mounting bracket is mounted on the fixed mounting bracket, and a compression spring is sandwiched between the movable mounting bracket and the fixed mounting bracket. A set of vibrators is installed on each of the left and right sides of the movable mounting bracket. The feeding hopper is fixedly installed in the movable mounting bracket. The front end of the feeding hopper has a feed inlet for the conveyor belt to enter. A dust-blocking curtain is installed at the front end of the feeding hopper to block the feed inlet. A discharge hopper is provided at the bottom of the feeding hopper. A screen is installed in the feeding hopper below the feed inlet. A dust suction port is provided at the top of the feeding hopper.
[0004] The sand is conveyed to the inside of the feed hopper by an external conveyor belt. Then, under the action of a vibrator and a screen, the sand is screened and fed into the feed hopper. The end of the feed hopper corresponds to the feed inlet of the sand mixer, so that the sand is conveyed into the inside of the sand mixer. The feed hopper is usually set at a fixed height. However, the conveying height of different external conveyor belts is different. If the feeding height is changed, the installation height of the feed hopper on the sand mixer is usually adjusted. However, the feed hopper will be a certain distance from the feed inlet of the sand mixer, and some sand may fall outside the sand mixer. Therefore, when the height of the feed hopper of the sand mixer is adjusted according to the needs, it is necessary to adjust the height of the feed hopper accordingly. Utility Model Content
[0005] The purpose of this utility model is to provide a feeding mechanism and a sand mixer to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a feeding mechanism, comprising:
[0007] The feed hopper has a trough on its front side;
[0008] A screen, which is installed inside the feed hopper;
[0009] A guide hopper is fitted onto the bottom of the feed hopper, and a discharge frame is provided at the bottom of the guide hopper;
[0010] An adjustment mechanism is located at the bottom of the feed hopper and is used to adjust the height of the feed frame.
[0011] Preferably, the adjustment mechanism includes:
[0012] A fixed tube is fixedly inserted into the bottom of the feed hopper;
[0013] The supporting tube is slidably sleeved on the outside of the fixed tube, and the feeding frame is slidably sleeved on the outside of the supporting tube;
[0014] A fastening assembly is located on the side of the feeding frame and is used to lock the relative position of the feeding frame and the carrying tube.
[0015] Preferably, the adjustment mechanism further includes:
[0016] Mounting plate, which is fixedly connected to the side of the bearing pipe;
[0017] The mounting bolts are threadedly inserted into the bottom of the mounting plate, and one end of the mounting bolts is threadedly inserted into the guide hopper.
[0018] A sliding groove is formed on the inner wall of the feeding frame;
[0019] The T-slot is formed on the inner wall of the feeding frame.
[0020] Preferably, the fastening assembly includes:
[0021] A threaded seat is fixedly connected to the side of the unloading frame, and a threaded post is threadedly inserted into the inner cavity of the threaded seat.
[0022] An extrusion plate is slidably inserted into the interior of a T-slot, and a connecting frame is fixedly connected to the side of the extrusion plate.
[0023] A connecting post is fixedly connected to the end of a threaded post and is rotatably inserted into the interior of a connecting frame.
[0024] Preferably, the fastening assembly further includes:
[0025] A rotating head, which is fixedly connected to the other end of the threaded column;
[0026] A fixed cylinder is fixedly connected to the side of the threaded seat, and the rotating head is slidably inserted into the inner cavity of the fixed cylinder;
[0027] A rubber tube is fixedly connected to the inner wall of a fixed cylinder, and the inner wall of the rubber tube is in contact with the outer wall of the rotating head.
[0028] A protective element, which is located outside the threaded seat.
[0029] Preferably, the protective element includes:
[0030] A protective frame, which covers the outside of the threaded seat;
[0031] An anti-loss rope, one end of which is fixedly connected to the protective frame, and the other end of which is fixedly connected to the unloading frame;
[0032] A support frame is fixedly connected to the side of the unloading frame, and the support frame is slidably inserted into the inner cavity of the protective frame.
[0033] Another objective of this utility model is to provide a sand mixer, which includes the aforementioned feeding mechanism.
[0034] The technical effects and advantages of this utility model are as follows:
[0035] This utility model utilizes the cooperation of a fixed pipe, a bearing pipe, a mounting plate, a threaded seat, a threaded column, a rotating head, and an extrusion column. The fixed pipe cooperates with the bearing pipe, the bearing pipe supports the feeding frame, and the threaded column pushes the extrusion plate to limit the relative position of the feeding frame and the bearing pipe. This facilitates the adjustment of the feeding frame height, making it easy to adapt to different feeding heights and preventing sand from splashing to the outside during feeding. Attached Figure Description
[0036] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0037] Figure 2 This is a front sectional view of the material feeding frame of this utility model.
[0038] Figure 3 This is a front sectional view of the threaded seat of this utility model.
[0039] In the diagram: 1. Feed hopper; 2. Tank; 3. Screen; 4. Guide hopper; 5. Discharge frame; 6. Adjustment mechanism; 61. Fixed pipe; 62. Bearing pipe; 63. Mounting plate; 64. Threaded seat; 65. Threaded column; 66. Rotating head; 67. Extrusion plate; 68. Connecting frame; 69. Connecting column; 610. Fixed cylinder; 611. Protective frame; 612. Rubber cylinder; 613. Anti-loss rope; 614. Support frame. Detailed Implementation
[0040] 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.
[0041] This utility model provides, for example Figure 1-3 The above describes a feeding mechanism. Example
[0042] The system includes a feed hopper 1, a screen 3, a guide hopper 4, and an adjusting mechanism 6. The feed hopper 1 is installed on the sand mixer and its installation height can be adjusted using an external adjusting bracket. The guide hopper 4 facilitates the conical collection of sand for feeding. The front of the feed hopper 1 has a trough 2, and the screen 3 is installed inside the feed hopper 1. The guide hopper 4 is fitted onto the bottom of the feed hopper 1, and a discharge frame 5 is provided at the bottom of the guide hopper 4. This facilitates the matching of the feed inlet of the sand mixer and the feeding of sand into the mixer. The adjusting mechanism 6 is located at the bottom of the guide hopper 4 and is used to adjust the height of the discharge frame 5.
[0043] Furthermore, the adjustment mechanism 6 includes a fixed pipe 61, a bearing pipe 62, and a fastening assembly. The fixed pipe 61 and the bearing pipe 62 are arranged in a square shape. The fixed pipe 61 facilitates the discharge of sand from the inside of the feed hopper 4, while the bearing pipe 62 facilitates the support of the discharge frame 5 and makes it easy to adjust the height of the discharge frame 5. After the height of the feed hopper 1 is adjusted, the discharge height of the discharge frame 5 can be adjusted accordingly, which is convenient for operation. The fixed pipe 61 is fixedly inserted into the bottom of the feed hopper 4, and the bearing pipe 62 is slidably sleeved on the outside of the fixed pipe 61. The discharge frame 5 is slidably sleeved on the outside of the bearing pipe 62. The fastening assembly is located on the side of the discharge frame 5 and is used to lock the relative position of the discharge frame 5 and the bearing pipe 62.
[0044] Furthermore, the adjustment mechanism 6 also includes a mounting plate 63, mounting bolts, a sliding groove, and a T-slot. The mounting plate 63 facilitates the support of the bearing pipe 62, and the mounting bolts facilitate the installation and disassembly of the mounting plate 63 and the guide hopper 4, making it easy to install and disassemble the bearing pipe 62. The mounting plate 63 is fixedly connected to the side of the bearing pipe 62, and the mounting bolts are threadedly connected to the bottom of the mounting plate 63. One end of the mounting bolts is threadedly connected to the guide hopper 4. The sliding groove is opened on the inner wall of the discharge frame 5, and the T-slot is opened on the inner wall of the discharge frame 5.
[0045] Specifically, the fastening assembly includes a threaded seat 64, a pressing plate 67, and a connecting post 69. The threaded seat 64 facilitates the rotation of the threaded post 65 within it, providing support for the threaded post 65. A rubber pad can be fixed to the side of the pressing plate 67, which helps to compress and limit the relative position of the feeding frame 5 and the bearing tube 62, while also increasing friction. The connecting post 69 is T-shaped and can cooperate with the connecting frame 68, thereby facilitating the driving operation of the threaded post 65 on the pressing plate 67. The threaded seat 64 is fixedly connected to the side of the feeding frame 5, and the threaded post 65 is threadedly inserted into the inner cavity of the threaded seat 64, which helps to push the pressing plate 67 to move and compress and fix the feeding frame 5. The pressing plate 67 is slidably inserted into the inside of the T-slot, and the connecting frame 68 is fixedly connected to the side of the pressing plate 67. The connecting post 69 is fixedly connected to the end of the threaded post 65 and can rotate through the inside of the connecting frame 68.
[0046] More specifically, the fastening assembly also includes a rotating head 66, a fixed cylinder 610, a rubber cylinder 612, and a protective component. The rotating head 66 facilitates the rotation of the threaded post 65 for operation. The fixed cylinder 610 supports the rubber cylinder 612, which is made of rubber and cooperates with the rotating head 66 to increase the friction of the rotating head 66 and prevent the threaded post 65 from rotating arbitrarily. The rotating head 66 is fixedly connected to the other end of the threaded post 65. The fixed cylinder 610 is fixedly connected to the side of the threaded seat 64. The rotating head 66 and the inner cavity of the fixed cylinder 610 are slidably inserted into each other. The rubber cylinder 612 is fixedly connected to the inner wall of the fixed cylinder 610, and the inner wall of the rubber cylinder 612 is in contact with the outer wall of the rotating head 66. The protective component is located on the outside of the threaded seat 64.
[0047] This embodiment provides a sand mixer, which includes the aforementioned feeding mechanism. Example
[0048] Based on Embodiment 1, the protective component includes a protective frame 611, an anti-loss rope 613, and a support frame 614. The protective frame 611 is conducive to cooperating with the support frame 614, thereby facilitating the shielding and protection of the threaded seat 64 and the threaded post 65. A rubber frame can be fitted onto the outside of the support frame 614 to increase the friction between the protective frame 611 and the support frame 614. The anti-loss rope 613 is conducive to traction protection of the protective frame 611 to prevent the loss of the protective frame 611. The protective frame 611 covers the outside of the threaded seat 64. One end of the anti-loss rope 613 is fixedly connected to the protective frame 611, and the other end of the anti-loss rope 613 is fixedly connected to the unloading frame 5. The support frame 614 is fixedly connected to the side of the unloading frame 5, and the support frame 614 and the inner cavity of the protective frame 611 are slidably interlocked.
[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 feeding mechanism, characterized in that, include: Feeding bin (1), the front of which is provided with a trough (2); A screen (3) is installed inside the feed hopper (1); The guide hopper (4) is fitted onto the bottom of the feed bin (1), and the bottom of the guide hopper (4) is provided with a discharge frame (5). Adjustment mechanism (6) is located at the bottom of the guide hopper (4) and is used to adjust the height of the feeding frame (5).
2. The feeding mechanism according to claim 1, characterized in that, The adjustment mechanism (6) includes: A fixed tube (61) is fixedly inserted into the bottom of the feed hopper (4); The supporting tube (62) is slidably sleeved on the outside of the fixed tube (61), and the feeding frame (5) is slidably sleeved on the outside of the supporting tube (62); A fastening assembly is located on the side of the feed frame (5) and is used to lock the relative positions of the feed frame (5) and the carrier tube (62).
3. The feeding mechanism according to claim 2, characterized in that, The adjustment mechanism (6) further includes: Mounting plate (63), which is fixedly connected to the side of the bearing tube (62); The mounting bolts are threadedly connected to the bottom of the mounting plate (63), and one end of the mounting bolts is threadedly connected to the guide hopper (4). A sliding groove is formed on the inner wall of the feeding frame (5); The T-slot is formed on the inner wall of the feeding frame (5).
4. A feeding mechanism according to claim 2, characterized in that, The fastening assembly includes: A threaded seat (64) is fixedly connected to the side of the unloading frame (5), and a threaded post (65) is threadedly inserted into the inner cavity of the threaded seat (64). An extrusion plate (67) is slidably inserted into the interior of a T-slot, and a connecting frame (68) is fixedly connected to the side of the extrusion plate (67). A connecting post (69) is fixedly connected to the end of a threaded post (65), and the connecting post (69) is rotatably inserted into the interior of a connecting frame (68).
5. A feeding mechanism according to claim 4, characterized in that, The fastening assembly also includes: A rotating head (66) is fixedly connected to the other end of a threaded column (65); A fixed cylinder (610) is fixedly connected to the side of a threaded seat (64), and the rotating head (66) is slidably inserted into the inner cavity of the fixed cylinder (610). A rubber cylinder (612) is fixedly connected to the inner wall of a fixed cylinder (610), and the inner wall of the rubber cylinder (612) is in contact with the outer wall of the rotating head (66). A protective element located outside the threaded seat (64).
6. A feeding mechanism according to claim 5, characterized in that, The protective component includes: A protective frame (611) is provided to cover the outside of the threaded seat (64); Anti-loss rope (613), one end of which is fixedly connected to the protective frame (611), and the other end of which is fixedly connected to the unloading frame (5); The support frame (614) is fixedly connected to the side of the feeding frame (5), and the support frame (614) is slidably inserted into the inner cavity of the protective frame (611).
7. A sand mixer, characterized in that, The sand mixer includes the feeding mechanism as described in any one of claims 1-6.