Automatic feeding device of ceramic dry press

Abstract

The utility model relates to the technical field of ceramic dry pressing equipment, in particular to an automatic feeding device of a ceramic dry press, which comprises a storage barrel, a feeding boot, a valve switch, a feeding pipeline and a dry pressing platform. A mold groove is formed in the front end of the top of the dry pressing platform; a discharging pipe is arranged at the bottom of the storage barrel, the valve switch is arranged on the upper portion of the discharging pipe, the bottom end of the discharging pipe is communicated with a feeding port in the rear side of the top of the feeding boot through the feeding pipeline, and the feeding pipeline is a hose. A discharging port capable of communicating with the mold groove is formed in the bottom of the feeding boot, and the feeding boot is driven by a driving mechanism to do reciprocating motion in the length direction of the upper surface of the dry pressing platform. Powder can be continuously and stably supplied to the dry press, frequent manual operation is not needed, and therefore the production period is remarkably shortened.

Description

Technical Field

[0001] This utility model relates to the technical field of ceramic dry pressing equipment, and in particular to an automatic feeding device for a ceramic dry press. Background Technology

[0002] Ceramic dry presses are the most commonly used ceramic forming equipment and play a crucial role in the ceramic manufacturing industry. By applying precise pressure, they tightly compress ceramic powder into green bodies of the desired shape, laying a solid foundation for the subsequent firing process. This equipment not only greatly improves production efficiency but also ensures product consistency and stability.

[0003] With advancements in technology, modern ceramic dry presses have become more intelligent and automated in their design. They are equipped with advanced control systems that can precisely adjust pressure, pressing time, and mold shape to meet the production needs of different types and specifications of ceramic products. At the same time, the press body is typically made of high-strength materials to ensure stability and durability even under prolonged, high-intensity operation.

[0004] In terms of operation, the ceramic dry press also demonstrates a high degree of convenience. Operators only need to place the pre-prepared ceramic powder into the mold, set the relevant parameters, and start the machine; it will then automatically complete a series of actions such as pressing and demolding. This not only reduces the labor intensity of workers but also lowers the defect rate caused by human error.

[0005] The problem is that some existing dry pressing machines use manual feeding. However, manual feeding is suitable for small-scale production or experimental stages. The operator must hold a container of powder and slowly pour it into the mold cavity of the dry press. In this process, the operator's experience and skill are crucial; they must control the speed and amount of pouring by feel to ensure the powder evenly covers all corners of the mold. After adding the powder, they also need to manually level the powder inside the mold cavity. However, manual feeding is inefficient.

[0006] Based on the above problems, this utility model proposes an automatic feeding device for a ceramic dry press. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an automatic feeding device for a ceramic dry press. This device can continuously and stably supply powder to the dry press without frequent manual operation, thus significantly shortening the production cycle. Simultaneously, its precise control ensures consistent powder quantity each time, reducing defect rates caused by uneven feeding and further improving overall production efficiency. It solves the problems of low feeding efficiency and difficulty in guaranteeing completely consistent powder quantity in existing manual feeding methods. The automatic feeding device provided by this invention effectively simplifies the testing process and significantly improves testing efficiency.

[0008] To achieve the objective of this utility model, the technical solution adopted by this utility model is as follows:

[0009] This utility model discloses an automatic feeding device for a ceramic dry press, including a storage tank, a feeding shoe, a valve switch, a feeding pipe, and a dry pressing platform. The storage tank is a hollow, cone-shaped structure with an open top, fixed above the dry pressing platform. The top front end of the dry pressing platform is provided with a mold groove. The bottom of the storage tank is provided with a discharge pipe, and the valve switch is located on the upper part of the discharge pipe. The bottom end of the discharge pipe is connected to the feed inlet on the rear side of the top of the feeding shoe through the feeding pipe, which is a flexible hose. The bottom of the feeding shoe is provided with a discharge port that can communicate with the mold groove. The feeding shoe is driven by a driving mechanism to reciprocate along the length of the upper surface of the dry pressing platform.

[0010] The valve switch is electrically connected to the PLC controller, which can control the opening time of the valve switch; an infrared detection counter is provided on one side of the mold slot, and the infrared detection counter is electrically connected to the PLC controller.

[0011] The infrared detection counter includes a connecting corner plate, an infrared photoelectric switch, and a counter. The bottom of the connecting corner plate is fixed to the top of the dry pressing platform on one side of the mold groove. The upper outer wall of the connecting corner plate is provided with a photoelectric switch connection hole for the infrared photoelectric switch to pass through. The height of the photoelectric switch connection hole is flush with the height of the middle part of the outer wall of the feeding shoe. The counter is fixed to the front end of the upper surface of the dry pressing platform. The counter and the infrared photoelectric switch are electrically connected to the PLC controller.

[0012] The drive mechanism includes a fixed bracket, a cylinder seat, and a piston rod. The fixed bracket has an "L"-shaped structure, and its bottom is fixed to the middle of the rear end of the upper surface of the dry pressing platform. The upper middle of the outer wall of the fixed bracket is provided with a connecting hole for the connecting screw of the front end of the cylinder seat to pass through. The connecting screw passes through the connecting hole and is threadedly connected to the connecting nut. One end of the piston rod can reciprocate along the length of the inner cavity of the cylinder seat, and the other end of the piston rod is connected to the middle of the rear wall of the feeding shoe through a flange.

[0013] Two slide rails are fixed along the length of the upper surface of the dry pressing platform. The slide rails have a square cross-section and a limiting groove with an isosceles triangular cross-section in the middle of the two side walls. A slider is provided in the lower middle of the two side walls of the feeding shoe. The slider has a square structure and a groove at its end that matches the cross-sectional shape of the slide rail. The inner wall of the slider is connected to the lower side walls of the feeding shoe through a connecting plate.

[0014] The bottom outlet of the feeding boot has a tapered structure that is wider at the top and narrower at the bottom, and its bottom inner diameter is equal to the inner diameter of the mold groove; the top of the front wall of the feeding boot is inclined and set backward.

[0015] A vibration motor is fixed to the outer wall of the unloading pipe by clamps.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention provides a continuous and stable powder supply to the dry press, eliminating the need for frequent manual operation and significantly shortening the production cycle. Simultaneously, its precise control ensures consistent powder quantity each time, reducing defect rates caused by uneven feeding and further improving overall production efficiency. It solves the problems of existing manual feeding methods, which have low feeding efficiency and difficulty in guaranteeing completely consistent powder quantity each time. The automatic feeding device provided by this patent effectively simplifies the testing process and significantly improves testing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0020] Figure 3 This is a top view of the present invention;

[0021] Figure 4 for Figure 3 A cross-sectional view along AA.

[0022] In the diagram: 1. Storage tank, 2. Feeding shoe, 3. Valve switch, 4. Feeding pipe, 5. Dry pressing platform, 6. Mold groove, 7. Infrared detector counter, 8. Drive mechanism, 9. Slide rail, 10. Slider, 11. Unloading pipe, 12. Slide groove, 13. Connecting plate, 14. Clamp, 15. Vibration motor, 21. Feed inlet, 22. Discharge outlet, 71. Connecting angle plate, 72. Infrared photoelectric switch, 73. Counter, 74. Photoelectric switch connection hole, 81. Fixed bracket, 82. Cylinder seat, 83. Piston rod, 84. Connecting nut, 85. Flange, 91. Limiting groove. Detailed Implementation

[0023] The present invention will be further described below:

[0024] Please see Figures 1-4 ,

[0025] This utility model discloses an automatic feeding device for a ceramic dry press, including a storage tank 1, a feeding shoe 2, a valve switch 3, a feeding pipe 4, and a dry pressing platform 5. The storage tank 1 is a hollow, cone-shaped structure with an open top, fixed above the dry pressing platform 5. The top front end of the dry pressing platform 5 is provided with a mold groove 6. The bottom of the storage tank 1 is provided with a discharge pipe 11, and the valve switch 3 is located on the upper part of the discharge pipe 11. The bottom end of the discharge pipe 11 is connected to the feed inlet 21 on the rear side of the top of the feeding shoe 2 through the feeding pipe 4. The feeding pipe 4 is a flexible hose. The bottom of the feeding shoe 2 is provided with a discharge port 22 that can communicate with the mold groove 6. The feeding shoe 2 is connected to the mold groove 6 through the discharge port 22. The drive mechanism 8 drives the device to reciprocate along the length of the upper surface of the dry pressing platform 5; the valve switch 3 is electrically connected to the PLC controller, which controls the opening time of the valve switch 3; an infrared detection counter 7 is provided on one side of the mold slot 6, which is electrically connected to the PLC controller. The PLC controller can link the infrared detection counter 7 and the valve switch 3 together. When the infrared detection counter 7 reaches a predetermined count, the valve switch 3 is opened, and the powder in the storage tank 1 flows to the feeding shoe 2 through the feeding pipe 4; the automatic feeding device can continuously and stably supply powder to the dry press without frequent manual operation, thus significantly shortening the production cycle. At the same time, due to its precise control capability, it ensures that the amount of powder added each time is consistent, reducing the defect rate caused by uneven feeding, and further improving the overall production efficiency. It solves the problem of the existing manual feeding method, which has low feeding efficiency and makes it difficult to ensure that the amount of powder added each time is completely consistent. The automatic feeding device provided by this utility model patent effectively simplifies the testing process and greatly improves the testing efficiency.

[0026] Example: Storage hopper 1 is filled with powder, valve switch 3 is closed, and feeding shoe 2 is also filled with material. Infrared detection counter 7 is started, with the rated feeding count set to 10 times. After infrared detection counter 7 detects that feeding shoe 2 has advanced 10 times, it transmits the information to the PLC controller. The PLC controller controls feeding shoe 2 to pause its advancement and controls valve switch 3 to open for feeding. Vibration motor 15 is simultaneously turned on, and material flows into feeding shoe 2. After 30 seconds, valve switch 3 is closed, stopping feeding. Infrared detection counter 7 is reset to zero, and feeding shoe 2 is advanced again for feeding. This cycle repeats.

[0027] Furthermore, the infrared detection counter 7 includes a connecting corner plate 71, an infrared photoelectric switch 72, and a counter 73. The bottom of the connecting corner plate 71 is fixed to the top of the dry pressing platform 5 on one side of the mold groove 6. The upper part of the outer wall of the connecting corner plate 71 is provided with a photoelectric switch connection hole 74 for the infrared photoelectric switch 72 to pass through. The height of the photoelectric switch connection hole 74 is flush with the height of the middle part of the outer wall of the feeding shoe 2. The counter 73 is fixed to the front end of the upper surface of the dry pressing platform 5. The counter 73 and the infrared photoelectric switch 72 are respectively connected to the... PLC controller electrical connection, working process: Since the infrared photoelectric switch 72 can emit and receive infrared rays, when the feeding shoe 2 moves to the mold slot 6 to feed material, the emitted infrared rays can be reflected back, thus completing 1 count. The reflected signal will always exist before the feeding shoe 2 leaves, so the count will not increase. When the feeding shoe 2 reciprocates once and feeds material again, 2 counts will be completed. The count can be displayed on the counter 73. When the count reaches the rated 10 times, the PLC controller controls the feeding shoe 2 to stop advancing and controls the valve switch 3 to open the feeding.

[0028] Furthermore, the drive mechanism 8 includes a fixed bracket 81, a cylinder seat 82, and a piston rod 83. The fixed bracket 81 has an "L"-shaped structure, and its bottom is fixed to the middle of the rear end of the upper surface of the dry pressing platform 5. The upper middle of the outer wall of the fixed bracket 81 is provided with a connecting hole for the connecting screw of the front end of the cylinder seat 82 to pass through. The connecting screw passes through the connecting hole and is threadedly connected to the connecting nut 84. One end of the piston rod 83 can reciprocate along the length of the inner cavity of the cylinder seat 82. The other end of the piston rod 83 is connected to the middle of the rear wall of the feeding shoe 2 through a flange 85. Because one end of the piston rod 83 can reciprocate along the length of the inner cavity of the cylinder seat 82, the feeding shoe 2 connected to the other end of the piston rod 83 can reciprocate.

[0029] Furthermore, two slide rails 9 are fixed along the length of the upper surface of the dry pressing platform 5. The slide rails 9 have a square cross-section and a limiting groove 91 with an isosceles triangular cross-section in the middle of the two side walls. A slider 10 is provided in the lower middle of the two side walls of the feeding shoe 2. The slider 10 has a square structure and a groove 12 at its end that matches the cross-sectional shape of the slide rails 9. The inner wall of the slider 10 is connected to the lower side walls of the two side walls of the feeding shoe 2 through a connecting plate 13. By fixing sliders 10 that can slide along the slide rails 9 on both sides of the feeding shoe 2, it can be ensured that the feeding shoe 2 can reciprocate stably without deviation, which would affect the feeding of material into the mold groove 6.

[0030] Furthermore, the bottom outlet 22 of the feeding shoe 2 has a tapered structure that is wider at the top and narrower at the bottom. Its bottom inner diameter is equal to the inner diameter of the mold groove 6, which can play a guiding role, so that the powder entering from the inlet 21 can enter the outlet 22 as much as possible. The top of the front wall of the feeding shoe 2 is inclined and rearward, which makes it easier to push the ceramic after dry pressing to the front end of the dry pressing platform 5.

[0031] Furthermore, a vibration motor 15 is fixed to the outer wall of the discharge pipe 11 by a clamp 14. By fixing the vibration motor 15 to the outer wall of the discharge pipe 11, the powder in the storage tank can be prevented from flowing out due to its poor flowability.

[0032] Working process: The storage tank 1 is filled with powder, valve switch 3 is closed, and the feeding shoe 2 is also filled with material. The infrared detector counter 7 and drive mechanism 8 are activated, and the rated feeding count is set to 10 times. The piston rod 83 moves the feeding shoe 2 above the mold groove 6, allowing the powder in the feeding shoe 2 to flow into the mold groove 6 through the discharge port 22. After feeding is complete, the piston rod 83 moves the feeding shoe 2 back to the rear end of the dry pressing platform 5. At this time, the infrared detector counter 7 counts once. After the hydraulic pile above the mold groove 6 completes the dry pressing of the powder in the mold groove 6, the lifting mechanism at the bottom of the mold groove 6 can push out the dry-pressed ceramic. Piston rod 83 re-drives the feeding shoe 2 to move to the mold slot 6, and the front end of the feeding shoe 2 can simultaneously eject the raised ceramic material for unloading, and then feed the mold slot 6 a second time. This process repeats. After the infrared detector counter 7 detects that the feeding shoe 2 has advanced 10 times, it transmits the information to the PLC controller. The PLC controller controls the feeding shoe 2 to pause its advancement and controls the valve switch 3 to open the feeding mechanism. The vibration motor 15 is turned on simultaneously, and the material flows into the feeding shoe 2. After a timer of 30 seconds, the valve switch 3 closes, stopping the feeding. The infrared detector counter 7 is reset to zero, and the feeding shoe 2 advances again to feed. This cycle repeats continuously.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic feeding device for a ceramic dry press, characterized in that: It includes a storage tank (1), a feeding shoe (2), a valve switch (3), a feeding pipe (4), and a dry pressing platform (5). The storage tank (1) is a hollow, cone-shaped structure with an open top, fixed above the dry pressing platform (5). The top front end of the dry pressing platform (5) is provided with a mold groove (6). The bottom of the storage tank (1) is provided with a discharge pipe (11). The valve switch (3) is located on the upper part of the discharge pipe (11). The bottom end of the discharge pipe (11) is connected to the feed inlet (21) on the rear side of the top of the feed shoe (2) through the feed pipe (4). The feed pipe (4) is a flexible hose. The bottom of the feed shoe (2) is provided with a discharge port (22) that can communicate with the mold groove (6). The feed shoe (2) is driven by the drive mechanism (8) to reciprocate along the length of the upper surface of the dry pressing platform (5).

2. The automatic feeding device for a ceramic dry press according to claim 1, characterized in that: The valve switch (3) is electrically connected to the PLC controller, and the PLC controller can control the opening time of the valve switch (3); an infrared detection counter (7) is provided on one side of the mold slot (6), and the infrared detection counter (7) is electrically connected to the PLC controller.

3. The automatic feeding device for a ceramic dry press according to claim 2, characterized in that: The infrared detection counter (7) includes a connecting corner plate (71), an infrared photoelectric switch (72), and a counter (73). The bottom of the connecting corner plate (71) is fixed to the top of the dry pressing platform (5) on one side of the mold groove (6). The upper part of the outer wall of the connecting corner plate (71) is provided with a photoelectric switch connection hole (74) for the infrared photoelectric switch (72) to pass through. The height of the photoelectric switch connection hole (74) is flush with the height of the middle part of the outer wall of the feeding shoe (2). The counter (73) is fixed to the front end of the upper surface of the dry pressing platform (5). The counter (73) and the infrared photoelectric switch (72) are electrically connected to the PLC controller respectively.

4. The automatic feeding device for a ceramic dry press according to claim 1, characterized in that: The drive mechanism (8) includes a fixed bracket (81), a cylinder seat (82) and a piston rod (83). The fixed bracket (81) has an "L" shaped structure and its bottom is fixed to the middle of the rear end of the upper surface of the dry pressing platform (5). The upper middle of the outer wall of the fixed bracket (81) is provided with a connecting hole for the connecting screw of the front end of the cylinder seat (82) to pass through. The connecting screw passes through the connecting hole and is threadedly connected to the connecting nut (84). One end of the piston rod (83) can reciprocate along the length of the inner cavity of the cylinder seat (82). The other end of the piston rod (83) is connected to the middle of the rear wall of the feeding shoe (2) through a flange (85).

5. The automatic feeding device for a ceramic dry press according to claim 4, characterized in that: Two slide rails (9) are fixed on both sides of the upper surface of the dry pressing platform (5) along its length. The slide rails (9) have a square cross-section and a limiting groove (91) with an isosceles triangle cross-section in the middle of the two side walls. A slider (10) is provided in the middle of the lower side walls of the feeding shoe (2). The slider (10) has a square structure and a groove (12) at its end that matches the cross-sectional shape of the slide rails (9). The inner wall of the slider (10) is connected to the lower side walls of the feeding shoe (2) through a connecting plate (13).

6. The automatic feeding device for a ceramic dry press according to claim 5, characterized in that: The bottom outlet (22) of the feeding boot (2) has a tapered structure that is wider at the top and narrower at the bottom, and its bottom inner diameter is equal to the inner diameter of the mold groove (6); the top of the front wall of the feeding boot (2) is inclined and rearward.

7. The automatic feeding device for a ceramic dry press according to claim 1, characterized in that: A vibration motor (15) is fixed to the outer wall of the unloading pipe (11) by a clamp (14).

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