Magnetic screw feeder
By using an open machine structure and a magnetic feeder design, the problem of chain slack adjustment in traditional screw feeders during high-inclination conveying has been solved, achieving stable chain transmission and rapid adjustment, and adapting to modern automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional screw feeders suffer from insufficient friction when conveying metal components at high inclinations, leading to chain slack and difficulty in tension adjustment. Furthermore, the enclosed structure increases the difficulty and cost of adjustment, failing to meet the demands of modern automation.
A magnetic screw feeder was designed, which adopts an open machine base structure. By setting upper and lower sliding grooves and shaft seats on the connecting plate, the chain tension can be easily adjusted. The chain can be stably transmitted by using magnetic block seats and transmission devices. The connecting plate serves as a base to facilitate assembly and maintenance.
It enables rapid tension adjustment of the chain when it is slack, ensuring stable chain transmission, reducing labor and time costs, and adapting to the needs of modern automated production.
Smart Images

Figure CN224090974U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a magnetic screw feeder, specifically a magnetic screw feeder that can be quickly assembled and allows for easy tension adjustment when the chain is slack. Background Technology
[0002] Traditional screw feeders mainly utilize the frictional force between the belt and the object to be fed to deliver the object to the designated machine. Since the frictional force generated by the belt is quite limited, it is not suitable for conveying objects and metal components at high inclinations. If the object to be fed is to be delivered, the machine must be horizontal, which occupies a considerable horizontal area and is not suitable for the needs of modern automated operations.
[0003] Therefore, in order to solve the limitations of traditional screw feeders, the industry has developed several types of magnetic feeders that use magnetic force to attract the material to be fed for high-angle material transfer. However, these conventional magnetic screw feeders use sprockets and chains as the power transmission mechanism and have an S-shaped transmission path. Sprockets and chains must be reassembled at the turning points to change the transmission direction. In addition to increasing manufacturing costs, since the sprockets and chains are all enclosed in the machine, when the chain becomes loose and the chain tension is insufficient, reducing the transmission power, it is necessary to adjust the tension of multiple sets of sprockets and chains, which requires more manpower and time. In particular, traditional magnetic feeders use welded enclosed machine bodies to avoid dust, which further increases the difficulty of chain adjustment and is still not the mainstream in the market.
[0004] The reason is that, in view of the many problems that still exist in the traditional screw feeder and the improved magnetic screw feeder, the creator developed this creation with the help of many years of design experience and related knowledge. Summary of the Invention
[0005] In view of this, the present invention provides a magnetic screw feeder to solve the above problems.
[0006] This invention relates to a magnetic screw feeder, the main purpose of which is to provide a magnetic screw feeder that allows for quick and convenient tension adjustment directly from the outside when the chain is slack.
[0007] The secondary objective of this invention is to provide a modular machine tool that can quickly replace magnetic blocks when the magnetic force is affected by dust.
[0008] To achieve the aforementioned advantages, this magnetic screw feeder includes: a machine base having two opposing connecting plates, with upper and lower grooves formed on the outer sides of the two opposing connecting plates, defining a feeding area between the two connecting plates; a cover plate connected to the feeding area, further sealing the connecting plates; two chain guide frames, respectively disposed on the inner surfaces of the two connecting plates, including a first chain guide frame and a second chain guide frame, located in the feeding area of the machine base and below the cover plate, respectively engaging with the inner surfaces of the two connecting plates of the machine base to position the cyclic operation of the chains; and two transmission devices, disposed in the feeding area of the machine base and below the cover plate, each transmission device comprising components assembled with the connecting plates... The plate has a first sprocket and a second sprocket on its inner surface, with the first sprocket and the second sprocket respectively located at the two ends of the first chain guide frame and the second chain guide frame. A chain is wound between the first sprocket and the second sprocket. The first sprocket and the second sprocket are connected to each other by a first wheel shaft and a second wheel shaft, respectively. A bearing seat is attached to the end of each of the first wheel shaft and the second wheel shaft, and the screw holes of the bearing seats correspond to the upper and lower grooves of the connecting plate, respectively. A magnetic block seat is set in the feeding area defined by the two combined plates and is located below the cover plate. The magnetic block seat is located between the chains of the two transmission devices and includes a connecting rod connected to the two chains, a fixed seat assembled above the connecting rod, and a magnetic block set on the fixed seat.
[0009] Regarding the technical means of solving the problem in this invention, the main method is to utilize the upper and lower sliding grooves opened on the two opposing connecting plates of the machine tool. Through the shaft seats fixed to the head ends of the first and second wheel shafts, the two chains can slide in the sliding grooves, which facilitates the tension of the two chains, adjusts the tension of the two chains, prevents the two chains from falling off, and achieves the effect of normal transmission. In addition, the two connecting plates of the machine tool serve as connecting bases. Through the connecting grooves and positioning grooves opened on the connecting plates respectively, various accessories are connected, which facilitates assembly and maintenance. Attached Figure Description
[0010] Figure 1 This is a partial structural diagram of the work.
[0011] Figure 2 This is a three-dimensional illustration of the original work.
[0012] Figure 3 This is a structural diagram of the composite panel used in this creation.
[0013] Figure 4 This is a cross-sectional view of the composite panel in this work.
[0014] Figure 5 This is a schematic diagram of the installation of this work.
[0015] Figure 6 This is a side view of the installation of this work.
[0016] Figure 7 This is a 3D illustration of the material feeding process in this work.
[0017] Figure 8 This is a side view illustrating the feeding process in this work. Detailed Implementation
[0018] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.
[0019] To fully and clearly reveal the technical means and effects of this work, please refer to the detailed descriptions of the figures and figure numbers below:
[0020] See Figures 1 to 4 As shown, the magnetic screw feeder of this invention mainly includes a machine base 1, two chain guide frames 2 and 20, two transmission devices 3, and a number of magnetic block seats 4; wherein the machine base 1 is provided with two connecting plates 10 and 11 facing each other on the left and right (see reference). Figure 3 and Figure 4 The connecting plates 10 and 11 are integrally formed by aluminum extrusion, and the two connecting plates 10 and 11 define a feeding section 12 on the left and right (e.g., Figure 1 ), and the outer sides of the two connecting plates 10 and 11 (see Figure 3 The system is equipped with an upper chute 100 and a lower chute 110. The rear end of the upper chute 100 extends towards the feeding section 12, where a platform 102 can be fixedly mounted with a cover plate 103 made of a non-magnetic material such as stainless steel. Figure 2 The cover plate 103 is positioned between the two corresponding platforms. A first positioning groove 101 and a second positioning groove 111 are provided at the rear ends of the upper sliding groove 100 and the lower sliding groove 110, respectively. The first positioning groove 101 and the second positioning groove 111 together form a clamping area for the two chain guide frames 2 and 20, so that the first positioning groove 101 and the second positioning groove 111 respectively accommodate the first chain guide frame 2 and the second chain guide frame 20 (see...). Figure 3As shown), the first chain guide frame 2 and the second chain guide frame 20 are positioned correspondingly within the feeding section 12 between the connecting plates 10 and 11, and are located below the cover plate 103. The two chain guide frames 2 and 20 are positioned opposite each other within the feeding section 12 of the machine tool 1 and are accommodated in the positioning grooves of the two connecting plates 10 and 11. The first chain guide frame 2 and the second chain guide frame 20 are positioned in a ring shape with the chain 5 to ensure the chain... 5. Smooth cyclic operation; a first connecting groove 104 and a second connecting groove 114 are formed at the adjacent junctions of the upper sliding groove 100 and the lower sliding groove 110, and one or more nuts 116 are placed in the grooves. The outer edge of the nut 116 has a protruding gripping post 117 to facilitate hand gripping and alignment with the two wheel axles. A guide plate assembly 115 is connected to the first connecting groove 104, and the second connecting groove 114 is connected to the machine base 1, thereby forming the outer frame structure of the feeder.
[0021] The second transmission device 3 is located within the feeding section 12 between the two connecting plates 10 and 11 of the machine base 1, and is situated below the cover plate 103. The transmission device 3 includes a first sprocket 30 and a second sprocket 31 assembled on the inner surfaces of the two connecting plates 10 and 11, with the first sprocket 30 and the second sprocket 31 positioned at the two ends of the first chain guide frame 2 and the second chain guide frame 20, respectively. The chain 5 is then wound between the first sprocket 30 and the second sprocket 31. Furthermore, each... The first sprocket 30 and each of the second sprockets 31 are further connected by a first wheel shaft 32 and a second wheel shaft 33 to operate synchronously. At the head end of the first wheel shaft 32 and the second wheel shaft 33, a bearing seat 34 and a bearing seat 35 are respectively attached. The screw holes 340 and 350 of the bearing seats 34 and 35 correspond to the upper and lower grooves 100 and 110 of the connecting plates 10 and 11, respectively, so that the bearing seats 34 and 35 are slidably assembled in the upper and lower grooves 100 and 110, thereby adjusting the tension of the chain 5.
[0022] The magnetic block holder 4 is arranged at equal or unequal intervals within the feeding zone 12 defined by the two connecting plates 10 and 11, and is located below the cover plate 103. The magnetic block holder 4 is positioned between the chains 5 of the two transmission devices 3. It includes a connecting rod 40 that connects the two chains 5, a fixing seat 41 assembled above the connecting rod 40, and a magnetic block 42 fixed to the upper end of the fixing seat 41. The upper end face of the magnetic block 42 is provided with a screw hole 43 for fixing screws to lock the magnetic block 42 onto the fixing seat 41, thereby providing a magnetic effect.
[0023] Therefore, when feeding materials (see...) Figure 7 and Figure 8The first sprocket 30, connected to the linkage mechanism 60, is driven by a power unit 6, which in turn drives the second sprocket 31 via the chain 5. When the chain 5 is in motion, the first and second chain guide frames 20 guide and limit its movement, ensuring stable and smooth operation. When the chain 5 moves counter-clockwise, it drives the magnetic block seat 4 (composed of...) located between the two chains 5. Figure 1 (Disclosed) The magnetic system generated by its magnetic block 42 will attract metal components 7 such as screws or iron filings 70 through the cover plate 103 and move them upwards together. When the magnetic block 42 reaches the top, the magnetic effect is released due to the downward reverse stroke, causing the screws 7 and iron filings 70 to fall from the top into the guide channel 8 and be sent to the vibrating separator 9 for separation and collection of the iron filings 70 and screws 7 (e.g. Figure 8 ).
[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.
Claims
1. A magnetic screw feeder, characterized in that, The magnetic screw feeder comprises: a machine base with two opposing connecting plates forming a feeding section; upper and lower grooves on the outer end faces of each connecting plate; and a cover plate connected to the feeding section; two chain guide frames disposed opposite each other within the feeding section of the machine base and housed in positioning grooves of the two connecting plates, with a chain wound around each of the two chain guide frames; and two transmission devices disposed within the feeding section of the machine base and located below the cover plate, each transmission device comprising a first [missing information - likely a first transmission device] assembled on the inner surface of the two connecting plates. The device includes a sprocket and a second sprocket, connected between the two sprockets by a first wheel shaft and a second wheel shaft respectively. A bearing seat is further connected to the end of the first wheel shaft and the second wheel shaft, and the screw holes of the bearing seat correspond to the upper and lower grooves of the connecting plate respectively, so that the bearing seat is slidably assembled in the groove. The device also includes a number of magnetic block seats, which are set in the feeding area defined by the two connecting plates and are located between the two chains of the two transmission devices. The magnetic block seats include a connecting rod connected to the two chains, a fixed seat assembled above the connecting rod, and a magnetic block fixed on the fixed seat.
2. The magnetic screw feeder as described in claim 1, characterized in that: The two connecting plates are provided with a first positioning groove and a second positioning groove on the corresponding inner surfaces of the upper and lower grooves, and the clamping area of the two chain guide frames is formed between the first positioning groove and the second positioning groove.
3. The magnetic screw feeder as described in claim 1, characterized in that: A first connecting groove and a second connecting groove are formed at the adjacent position of the upper and lower sliding grooves on the two connecting plates. A guide plate assembly is connected to the first connecting groove, and the machine base is connected to the second connecting groove.
4. The magnetic screw feeder as described in claim 1, characterized in that: Each of the upper sliding grooves has a platform extending from its inner surface, and the cover plate is positioned between the two corresponding platforms.
5. The magnetic screw feeder as described in claim 1, characterized in that: The upper and lower grooves are provided with a number of corresponding nuts, and the outer edge of the nut forms an outwardly extending gripping post, so that the nut slides to be positioned in accordance with the first wheel axle and the second wheel axle assembly.