Disc feeder

By designing a disk feeder with a matching negative pressure loading and weighing feeding machine, the rotation of the rotating ring and feeding gear disc can achieve vacuum loading and precise quantification of rare earth materials, the problem of lack of a supporting feeder in the prior art is solved.

CN222794694UActive Publication Date: 2025-04-25HEBEI OUKA AUTOMATION EQUIP CO LTD
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Patent Information

Application Number
CN202421721771.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-19
Publication Date
2025-04-25
Estimated Expiration
2034-07-19

AI Technical Summary

Technical Problem

The prior art lacks a disk feeder that can be used with a negative pressure loading and weighing feeding machine, making it difficult to achieve vacuum loading and precise quantification of rare earth materials.

Method used

A disk feeder is designed, including a temporary conveying chamber, a rotary ring, a feeding blade, a feeding gear disk and a drive shaft. Through the rotation of the rotating ring and feeding gear disk, the material is swept into the feed port and output through the discharge port, achieving vacuum loading and accurate quantification.

Benefits of technology

It realizes the matching use with the negative pressure loading and weighing feeding machine, and can efficiently load and quantitatively add rare earth materials under vacuum environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a disc feeder which comprises a temporary material conveying cavity and a transmission shaft, a rotating ring is arranged on the temporary material conveying cavity, and a plurality of material stirring blades are arranged on the rotating ring. A feeding gear disc is arranged in the feeding box, and continuous teeth are annularly arranged on the outer edge of the feeding gear disc; the transmission shafts upwards penetrate through the temporary conveying cavities in sequence, and the rotating ring and the feeding gear disc are fixed to the transmission shafts respectively. A feeding port is formed in the upper portion of the temporary conveying cavity, a discharging port is formed in the lower portion of the temporary conveying cavity, and the discharging port and the feeding port are staggered. In the rotating process of the rotating ring, the material stirring blades can sweep materials on the temporary material conveying cavity into the feeding port. In the rotating process of the feeding gear disc, the teeth of the feeding gear disc can sweep materials falling into gaps between the adjacent teeth of the feeding gear disc to the discharging port. The disc feeder disclosed by the utility model is matched with a negative-pressure feeding, weighing and feeding all-in-one machine for use, so that feeding and quantitative charging of rare earth materials can be realized.
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Description

Technical Field

[0001] The utility model relates to the technical field of rare earth processing technology and equipment, in particular to a disc feeder. Background Art

[0002] The negative pressure feeding weighing and feeding integrated machine includes a silo and a shell. The silo is cylindrical and is suspended on the shell through a weighing sensor. The negative pressure feeding weighing and feeding integrated machine is configured with a negative pressure environment. The powder is fed into the silo under the negative pressure environment and weighed at the same time. Then, the solid material in the airflow carrying the material is transported out from the material outlet of the silo.

[0003] However, there is currently a lack of disc feeders that can receive materials falling from the silo of a negative pressure feeding, weighing and feeding integrated machine to achieve vacuum feeding and precise quantitative addition of rare earth materials. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a disc feeder, which is used in conjunction with a negative pressure feeding and weighing feeding integrated machine, to solve the current lack of a disc feeder that is compatible with a negative pressure feeding and weighing feeding integrated machine, so as to achieve vacuum feeding and precise quantification of rare earth materials.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a disc feeder, comprising:

[0007] A temporary material delivery cavity, on which a rotating ring is provided, on which a plurality of material-discharging blades are provided; a feeding gear plate is installed inside the cavity, and a plurality of continuous teeth are provided in a circumferential direction on the outer edge of the feeding gear plate;

[0008] A transmission shaft, the transmission shafts respectively pass through the temporary material transport cavity upwards in sequence, and the rotating ring and the feeding gear plate are respectively fixed on the transmission shaft;

[0009] A feed port is disposed on the upper side of the temporary delivery cavity, and a discharge port is disposed on the lower side of the temporary delivery cavity, and the discharge port is staggered with the feed port;

[0010] During the rotation of the rotating ring, the material-moving blades can sweep the material on the temporary material transport cavity into the feed port; during the rotation of the feeding gear plate, the teeth of the feeding gear plate can sweep the material that falls into the gap between adjacent teeth of the feeding gear plate into the discharge port.

[0011] Preferably, the temporary transport cavity is formed by a flange plate and a fixed bottom plate covered up and down, and is used for temporarily loading and transporting materials;

[0012] The rotating ring, the flange, the feeding gear plate and the fixed chassis are sequentially mounted on the transmission shaft from top to bottom, and the transmission shaft passes through the fixed chassis and the flange upwards respectively, and the rotating ring and the feeding gear plate are respectively fixed on the transmission shaft.

[0013] Preferably, a feed port is provided on the flange, and the rotating ring is tightly attached to the flange. During the rotation of the rotating ring, the material-moving blades rotate on the flange to sweep the material on the flange into the feed port; the fixed chassis is provided with a discharge port, and the discharge port of the fixed chassis and the feed port of the flange are at the same distance from the transmission shaft, and the discharge port and the feed port are both located inside the gap between adjacent teeth of the feeding gear disk; during the rotation of the feeding gear disk, the teeth of the feeding gear disk can sweep the material that falls into the gap between adjacent teeth of the feeding gear disk to the discharge port.

[0014] Furthermore, it also includes a discharge control mechanism, which includes a valve plate, a valve plate cover, a cylinder, a connecting rod and a valve plate shaft, the valve plate is arranged on the bottom surface of the discharge port of the fixed chassis; the valve plate cover is arranged on the back side of the valve plate, and the back side of the valve plate cover is provided with a discharge pipe, and the inlet end of the discharge pipe is opposite to the discharge port of the fixed chassis; a discharge hole is opened on the valve plate, the valve plate is located between the fixed chassis and the valve plate cover, and can move parallel to the fixed chassis between the fixed chassis and the valve plate cover; the valve plate is fixedly connected to the valve plate shaft, and the valve plate shaft is pivotally connected to the piston rod of the cylinder through a connecting rod; when the cylinder is started, the piston rod of the cylinder is pivotally connected to push the valve plate shaft to move outward through the connecting rod, thereby pushing the valve plate to move, until the discharge hole of the valve plate is opposite to the discharge port of the fixed chassis, and the discharge port of the fixed chassis is connected to the inlet end of the discharge pipe.

[0015] Furthermore, it also includes a transmission mechanism, which includes a motor, a main sprocket, a chain and a secondary sprocket. The main sprocket is arranged on the output shaft of the motor, and the secondary sprocket is arranged at the bottom end of the transmission shaft. The main sprocket and the secondary sprocket are connected by a chain.

[0016] Preferably, the transmission shaft is connected to the fixed chassis via a bearing.

[0017] Preferably, a motor mounting plate is provided on the fixed chassis, and the motor is arranged on the motor mounting plate.

[0018] Preferably, at least two elongated holes are provided on the motor mounting plate, and motor mounting plate fixing bolts are respectively arranged in the elongated holes of the motor mounting plate, and the motor mounting plate and the fixed chassis are connected together by a plurality of motor mounting plate fixing bolts; and the motor mounting plate slides in the corresponding elongated holes through the motor mounting plate fixing bolts to realize movement with the fixed chassis; the motor mounting plate is fixed with a tensioning screw fixing plate, and a plurality of chain tensioning screw holes are provided on the side wall of the tensioning screw fixing plate, and each chain tensioning screw hole is arranged with a chain tensioning screw, and the plurality of chain tensioning screws are respectively passed through the plurality of chain tensioning screw holes of the tensioning screw fixing plate and pressed against the fixed chassis.

[0019] Preferably, the chain is provided with a protective cover, and two ends of the protective cover respectively cover the main sprocket and the secondary sprocket.

[0020] Preferably, the fixed chassis is provided with a plurality of ground-mounted legs.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] (I) The utility model discloses a disc feeder, which is used in conjunction with a negative pressure loading and weighing feeding integrated machine. It is arranged below the silo of the negative pressure loading and weighing feeding integrated machine and is sealed with the silo. Once the solid material in the air flow carrying the material falls onto the flange from the material outlet of the silo, the transmission shaft drives the rotating ring to rotate, and the material-discharging blades rotate on the flange to sweep the material on the flange into the feed port and into the gap between adjacent teeth of the feeding gear plate; at the same time, the transmission shaft drives the feeding gear plate to rotate, and the teeth of the feeding gear plate sweep the material that falls into the gap between adjacent teeth of the feeding gear plate to the discharge port; and finally flows out from the discharge hose. The disc feeder disclosed in the utility model is used in conjunction with the negative pressure loading and weighing feeding integrated machine to realize vacuum loading and precise quantification of rare earth materials.

[0023] (ii) The utility model discloses a disc feeder, which is also equipped with a discharge control mechanism, which includes a valve plate, a valve plate cover, a cylinder, a connecting rod and a valve plate shaft. A discharge hole is opened on the valve plate, and the valve plate is located between the fixed chassis and the valve plate cover, and can move parallel to the fixed chassis between the fixed chassis and the valve plate cover; when the valve plate blocks the discharge port of the fixed chassis, the discharge of the disc feeder is controlled to be closed, forming a closed space, which helps to draw a vacuum to form a negative pressure, and can realize the feeding and weighing of the negative pressure feeding weighing feeding integrated machine under a negative pressure environment; when the discharge hole of the valve plate is directly opposite to the discharge port of the fixed chassis, the discharge port of the fixed chassis is connected to the inlet end of the discharge pipe, so that the discharge of the disc feeder is opened. The utility model discloses a disc feeder, which can realize the closing or opening of the discharge of the disc feeder through the discharge control mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a top view of the three-dimensional structure of the disc feeder disclosed in Example 1 of the utility model;

[0025] Figure 2 It is a bottom view of the three-dimensional structure of the disc feeder disclosed in Example 1 of the utility model;

[0026] Figure 3 It is a top view of the disc feeder disclosed in Example 1 of the utility model;

[0027] Figure 4 It is a bottom view of the three-dimensional structure of the disc feeder disclosed in Example 1 of the utility model after the flange and the material-dispensing blades are removed;

[0028] Figure 5 It is a bottom view of the three-dimensional structure of the disc feeder disclosed in Example 1 of the utility model after the protective cover is removed;

[0029] Figure 6 It is a back view of the disc feeder disclosed in Embodiment 1 of the present utility model;

[0030] Figure 7 yes Figure 6 A schematic diagram of the structure in which the valve plate cover is removed to expose the valve plate;

[0031] Figure 8 It is a longitudinal side view of the disc feeder disclosed in Example 1 of the utility model;

[0032] Fig. 9 It is a transverse side view of the disc feeder disclosed in Example 1 of the utility model;

[0033] Fig.10 yes Fig. 9 AA section view in.

[0034] Description of reference numerals:

[0035] 1- transmission shaft, 10- top bolt, 11- cone fixing pad;

[0036] 20-rotating ring, 200-discharging blade; 21-flange, 210-feeding port, 22-feeding gear plate, 23-fixed chassis, 24-discharging pipe, 25-discharging hose;

[0037] 31-valve plate, 32-valve plate cover, 33-cylinder, 34-connecting rod, 35-valve plate shaft, 351-upper sliding bearing, 352-lower sliding bearing;

[0038] 41-motor, 42-main sprocket, 43-chain, 44-secondary sprocket, 45-bearing, 46-motor mounting plate, 471-long hole, 472-motor mounting plate fixing bolt, 481-tensioning screw fixing plate, 482-chain tensioning screw, 49-protective cover;

[0039] 51- floor support leg, 52-O-ring. DETAILED DESCRIPTION

[0040] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0041] It should be noted that the "vacuum loading" in this article refers to loading materials in a negative pressure environment by vacuuming to form a negative pressure.

[0042] In order to solve the problem that there is currently a lack of disc feeders that are compatible with negative pressure loading, weighing and feeding integrated machines to achieve vacuum loading and precise quantitative measurement of rare earth materials, the utility model discloses a disc feeder that is used in conjunction with the negative pressure loading, weighing and feeding integrated machine, is arranged below the silo of the negative pressure loading, weighing and feeding integrated machine and is sealed with the silo. Once the solid material in the airflow carrying the material falls onto the flange from the material outlet of the silo, the transmission shaft drives the rotating ring to rotate, and the material-diverting blade rotates on the flange to sweep the material on the flange into the feed port and into the gap between adjacent teeth of the feeding gear disc; at the same time, the transmission shaft drives the feeding gear disc to rotate, and the teeth of the feeding gear disc sweep the material that falls into the gap between adjacent teeth of the feeding gear disc to the discharge port; and finally flows out from the discharge hose. The disc feeder disclosed by the utility model is used in conjunction with the negative pressure loading, weighing and feeding integrated machine to achieve vacuum loading and precise quantitative measurement of rare earth materials.

[0043] Example 1: A disc feeder

[0044] Embodiment 1 of the present invention provides a disc feeder, and its structure is described in detail below in conjunction with the accompanying drawings.

[0045] refer to Figures 1 to 10 The disc feeder includes a temporary feeding chamber and a transmission shaft 1.

[0046] The temporary material delivery cavity is provided with a rotating ring 20, on which a plurality of material-dispensing blades 200 are provided; a feeding gear plate 22 is installed inside the rotating ring, and a plurality of continuous teeth are circumferentially provided on the outer edge of the feeding gear plate 22;

[0047] The transmission shaft 1 passes through the temporary material transport cavity upwards in sequence, and the rotating ring 20 and the feeding gear plate 22 are respectively fixed on the transmission shaft 1;

[0048] A feed port 210 is disposed on the upper side of the temporary delivery cavity, and a discharge port is disposed on the lower side of the temporary delivery cavity, and the discharge port is staggered with the feed port 210;

[0049] During the rotation of the rotating ring 20, the material-moving blade 200 can sweep the material on the temporary material transport cavity into the feed port 210; during the rotation of the feeding gear plate 22, the teeth of the feeding gear plate 22 can sweep the material that falls into the gap between adjacent teeth of the feeding gear plate 22 to the discharge port.

[0050] As a specific implementation, the temporary transport cavity is formed by a flange 21 and a fixed bottom plate 23 covering each other, and is used for temporarily loading and transporting materials.

[0051] The rotating ring 20, the flange 21, the feeding gear plate 22 and the fixed base plate 23 are sequentially sleeved on the transmission shaft 1 from top to bottom, and the transmission shaft 1 passes through the fixed base plate 23 and the flange 21 upwards respectively, and the rotating ring 20 and the feeding gear plate 22 are respectively fixed on the transmission shaft 1;

[0052] The flange 21 is provided with a feed port 210, and the rotating ring 20 is closely attached to the flange 21. During the rotation of the rotating ring 20, the material-discharging blade 200 rotates on the flange 21 to sweep the material on the flange 21 into the feed port 210;

[0053] The fixed chassis 23 is provided with a discharge port, and the discharge port of the fixed chassis 23 and the feed port 210 of the flange 21 are at the same distance from the transmission shaft 1, and the discharge port and the feed port 210 are both located inside the gap between adjacent teeth of the feeding gear plate 22;

[0054] During the rotation of the feeding gear plate 22 , the teeth of the feeding gear plate 22 can sweep the materials falling into the gaps between adjacent teeth of the feeding gear plate 22 to the discharge port.

[0055] In order to block the transmission shaft 1 as much as possible to make it look beautiful, further, a top bolt 10 and a conical fixing pad 11 are configured at the top end of the transmission shaft 1 , and the conical fixing pad 11 is set on the rotating ring 20 through the top bolt 10 .

[0056] In order to control the material output from the discharge port of the fixed chassis 23, the disc feeder also includes a discharge control mechanism, which includes a valve plate 31, a valve plate cover 32, a cylinder 33, a connecting rod 34 and a valve plate shaft 35.

[0057] The valve plate 31 is arranged on the bottom surface of the discharge port of the fixed chassis 23;

[0058] The valve plate cover 32 is disposed on the back of the valve plate 31. A discharge pipe 24 is disposed on the back of the valve plate cover 32, and the inlet end of the discharge pipe 24 is directly opposite to the discharge port of the fixed chassis 23.

[0059] The valve plate 31 is provided with a discharge hole, and the valve plate 31 is located between the fixed base plate 23 and the valve plate cover 32, and can move parallel to the fixed base plate 23 between the fixed base plate 23 and the valve plate cover 32;

[0060] The valve plate 31 is fixedly connected to a valve plate shaft 35, and the valve plate shaft 35 is pivotally connected to the piston rod of the cylinder 33 through a connecting rod 34;

[0061] When the cylinder 33 is started, the piston rod of the cylinder 33 is pivoted through the connecting rod 34 to push the valve plate shaft 35 to move outward, thereby pushing the valve plate 31 to move until the discharge hole of the valve plate 31 is directly opposite to the discharge port of the fixed chassis 23, and the discharge port of the fixed chassis 23 is connected to the inlet end of the discharge pipe 24.

[0062] Specifically, the cylinder 33 is a two-stage cylinder. Figure 2 and Figure 4 shown.

[0063] Furthermore, an upper sliding bearing 351 and a lower sliding bearing 352 are respectively disposed at both ends of the valve plate shaft 35 .

[0064] Furthermore, a discharge hose 25 is sleeved on the discharge pipe for connecting to the discharge chute.

[0065] In order to provide power to the transmission shaft 1, the disc feeder also includes a transmission mechanism, which includes a motor 41, a main sprocket 42, a chain 43, and a secondary sprocket 44. The main sprocket 42 is arranged on the output shaft of the motor 41, and the secondary sprocket 44 is arranged at the bottom end of the transmission shaft 1. The main sprocket 42 and the secondary sprocket 44 are connected by a chain 43.

[0066] In order to overcome the problem of relative movement between the transmission shaft 1 and the fixed chassis 23 when the transmission shaft 1 passes through the fixed chassis 23 upward, the transmission shaft 1 and the fixed chassis 23 are connected via a bearing 45 .

[0067] In order to facilitate the installation of the motor 41 , a motor mounting plate 46 is provided on the fixed chassis 23 , and the motor 41 is disposed on the motor mounting plate 46 .

[0068] Specifically, the motor 41 is a reduction motor.

[0069] In order to facilitate the control of the length of the chain 43, the motor mounting plate 46 and the fixed chassis 23 are connected in a slidable fixed + screw tensioning manner. First, the motor mounting plate 46 and the fixed chassis 23 are connected together by a plurality of motor mounting plate fixing bolts 472, but there is relative sliding between the two, so that the length can be adjusted. Secondly, the distance between the motor mounting plate 46 and the fixed chassis 23 is adjusted by rotating the chain tensioning screw 48, so as to adjust the center distance between the main sprocket 42 and the secondary sprocket 44, and then adjust the length of the chain 43.

[0070] Specifically, at least two elongated holes 471 are provided on the motor mounting plate 46, and motor mounting plate fixing bolts 472 are respectively arranged in the elongated holes 471 of the motor mounting plate 46. The motor mounting plate 46 and the fixed chassis 23 are connected together by a plurality of motor mounting plate fixing bolts 472, and the motor mounting plate 46 slides in the corresponding elongated holes 471 through the motor mounting plate fixing bolts 472 to realize the movement between the motor mounting plate 46 and the fixed chassis 23; the motor mounting plate 46 is fixed with a tensioning screw fixing plate 481, and a plurality of chain tensioning screw holes are provided on the side wall of the tensioning screw fixing plate 481, and each chain tensioning screw hole is configured with a chain tensioning screw 482, and a plurality of chain tensioning screws 482 are respectively passed through a plurality of chain tensioning screw holes of the tensioning screw fixing plate 481 and pressed against the fixed chassis 23.

[0071] In order to prevent debris from falling onto the chain 43 and causing obstruction to the transmission mechanism, the chain 43 is provided with a protective cover 49 , and the two ends of the protective cover 49 respectively cover the main sprocket 42 and the auxiliary sprocket 44 .

[0072] In order to facilitate standing, the disc feeder is equipped with a plurality of ground legs 51 , preferably three ground legs 51 , which are respectively arranged on the bottom surface of the fixed chassis 23 .

[0073] A disc feeder provided in Example 1 of the present utility model is used in conjunction with a negative pressure loading, weighing and feeding integrated machine, wherein the flange 21 is used as a receiving plate for receiving materials dropped from the material bin of the negative pressure loading, weighing and feeding integrated machine. In order to ensure that the flange 21 and the material bin of the negative pressure loading, weighing and feeding integrated machine are first connected through a flange, and then the flange 21 is provided with an O-ring groove, in which an O-ring 52 is arranged. This flange + sealing ring connection form enables the flange 21 to be sealed and connected with the material bin of the negative pressure loading, weighing and feeding integrated machine.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A disc feeder, characterized in that: include: A temporary material transport cavity, on which a rotating ring (20) is arranged, and a plurality of material-dispensing blades (200) are arranged on the rotating ring (20); a material-feeding gear plate (22) is arranged inside the cavity, and a plurality of continuous teeth are arranged in a circumferential direction on the outer edge of the material-feeding gear plate (22); A transmission shaft (1), the transmission shaft (1) passing through the temporary material transport chambers in sequence upwards, and the rotating ring (20) and the feeding gear plate (22) are respectively fixed on the transmission shaft (1); A feed port (210) is provided on the upper side of the temporary delivery cavity, and a discharge port is provided on the lower side of the temporary delivery cavity, and the discharge port is staggered with the feed port (210); During the rotation of the rotating ring (20), the material-prying blades (200) can sweep the material on the temporary material-transporting cavity into the feed port (210); during the rotation of the feeding gear plate (22), the teeth of the feeding gear plate (22) can sweep the material falling into the gap between adjacent teeth of the feeding gear plate (22) into the discharge port.

2. The disc feeder according to claim 1, characterized in that: The temporary material transport cavity is formed by a flange plate (21) and a fixed bottom plate (23) covering each other from top to bottom, and is used for temporarily loading and transporting materials; The rotating ring (20), the flange (21), the feeding gear plate (22) and the fixed base plate (23) are sequentially sleeved on the transmission shaft (1) from top to bottom, and the transmission shaft (1) passes through the fixed base plate (23) and the flange (21) upwards respectively, and the rotating ring (20) and the feeding gear plate (22) are respectively fixed on the transmission shaft (1).

3. The disc feeder according to claim 2, characterized in that: The flange (21) is provided with a feed port (210), the rotating ring (20) is closely attached to the flange (21), and during the rotation of the rotating ring (20), the material-discharging blade (200) rotates on the flange (21) to sweep the material on the flange (21) into the feed port (210); The fixed chassis (23) is provided with a discharge port, the discharge port of the fixed chassis (23) and the feed port (210) of the flange (21) are at the same distance from the transmission shaft (1), and both the discharge port and the feed port (210) are located inside the gap between adjacent teeth of the feeding gear plate (22); During the rotation of the feeding gear plate (22), the teeth of the feeding gear plate (22) can sweep the material falling into the gap between adjacent teeth of the feeding gear plate (22) to the discharge port.

4. The disc feeder according to claim 3, characterized in that: The device also includes a discharge control mechanism, wherein the discharge control mechanism includes a valve plate (31), a valve plate cover (32), a cylinder (33), a connecting rod (34) and a valve plate shaft (35). The valve plate (31) is arranged on the bottom surface of the fixed bottom plate (23) at the material outlet; The valve plate cover (32) is arranged on the back side of the valve plate (31), a discharge pipe (24) is arranged on the back side of the valve plate cover (32), and an inlet end of the discharge pipe (24) is directly opposite to a discharge port of the fixed chassis (23); The valve plate (31) is provided with a discharge hole, the valve plate (31) is located between the fixed base plate (23) and the valve plate cover (32), and is movable parallel to the fixed base plate (23) between the fixed base plate (23) and the valve plate cover (32); The valve plate (31) is fixedly connected to a valve plate shaft (35), and the valve plate shaft (35) is pivotally connected to the piston rod of the cylinder (33) via a connecting rod (34); When the cylinder (33) is started, the piston rod of the cylinder (33) is pivoted through the connecting rod (34) to push the valve plate shaft (35) to move outward, thereby pushing the valve plate (31) to move until the discharge hole of the valve plate (31) is directly opposite to the discharge port of the fixed chassis (23), and then the discharge port of the fixed chassis (23) and the inlet end of the discharge pipe (24) are connected.

5. The disc feeder according to claim 4, characterized in that: It also includes a transmission mechanism, the transmission mechanism including a motor (41), a main sprocket (42), a chain (43) and a secondary sprocket (44), A main sprocket (42) is provided on the output shaft of the motor (41). A secondary sprocket (44) is provided at the bottom end of the transmission shaft (1). The main sprocket (42) and the secondary sprocket (44) are connected via a chain (43).

6. The disc feeder according to claim 5, characterized in that: The transmission shaft (1) and the fixed chassis (23) are connected via a bearing (45).

7. The disc feeder according to claim 6, characterized in that: A motor mounting plate (46) is provided on the fixed chassis (23), and the motor (41) is provided on the motor mounting plate (46).

8. The disc feeder according to claim 7, characterized in that: At least two elongated holes (471) are provided on the motor mounting plate (46), and motor mounting plate fixing bolts (472) are respectively arranged in the elongated holes (471) of the motor mounting plate (46); the motor mounting plate (46) and the fixed chassis (23) are connected together via a plurality of motor mounting plate fixing bolts (472); and the motor mounting plate (46) slides in the corresponding elongated holes (471) via the motor mounting plate fixing bolts (472) to achieve movement with the fixed chassis (23); The motor mounting plate (46) is fixed with a tensioning screw fixing plate (481), and a side wall of the tensioning screw fixing plate (481) is provided with a plurality of chain tensioning screw holes, each chain tensioning screw hole is provided with a chain tensioning screw (482), and the plurality of chain tensioning screws (482) are respectively inserted into the plurality of chain tensioning screw holes of the tensioning screw fixing plate (481) and abut against the fixed chassis (23).

9. The disc feeder according to claim 5, characterized in that: The chain (43) is provided with a protective cover (49), and two ends of the protective cover (49) respectively cover the main sprocket (42) and the auxiliary sprocket (44).

10. The disc feeder according to claim 2, characterized in that: The fixed chassis (23) is provided with a plurality of ground-standing legs (51).