Punch granulator of die-casting machine

Abstract

The utility model relates to a die-casting machine punch granulator which comprises a storage system and a feeding system, the storage system comprises a storage bin with an upward opening at the top, the lower part of the storage bin is communicated with a feeding cavity, and the feeding system comprises a motor arranged at the rear side of the feeding cavity and a conveying pipe arranged at the front side of the feeding cavity; the rear end of the conveying pipe is communicated with the feeding cavity, a discharging opening is formed in the front end of the conveying pipe, the motor is connected with a screw rod used for rotationally conveying particles, and the screw rod is arranged in the conveying pipe in a sleeved mode; the material guiding system comprises a material guiding pipe and a rod air cylinder, the rod air cylinder comprises a cylinder body and a rod body capable of being partially contained in the cylinder body, the material guiding pipe inclines downwards, the top end of the material guiding pipe is movably connected with the rod body, and the upper portion of the material guiding pipe is movably connected with the material conveying pipe and communicated with the material conveying pipe.

Description

Technical Field

[0001] This utility model relates to the field of metal processing, and in particular to a die-casting machine punch pellet mill. Background Technology

[0002] In metal die casting, liquid metal is placed in a pressure chamber and pushed into a mold by a punch. After cooling, the desired solid metal shape is formed. To ensure the normal operation of the punch, lubrication between the punch and the pressure chamber is required. Since the operating temperature of the punch is relatively high, oily lubricating particles are often added. The particles melt when heated to form an oil film that lubricates the punch.

[0003] Patent CN213496397U discloses a lubricating particle conveying mechanism for a die-casting machine hammer. It employs a push-rod self-resetting integrated direct-fall feeding lubricant. The lubricating particles arrive at the receiving seat via the hopper and discharge pipe. The particles enter between the adjusting plunger and the connecting plunger through the inlet. A forward-pushing cylinder then pushes the feeding cylinder body, bringing the discharge port of the feeding cylinder body to the machine's lubrication position. The cylinder is then activated, and its piston rod pushes the feeding ejection mechanism forward, transporting the lubricating particles to the discharge port of the feeding cylinder body. The particles then fall through the discharge port, precisely hitting the machine's lubrication position. After the lubricating particles are dispensing, the cylinder is pulled back, causing the feeding cylinder body to return to its original position. The piston rod of the cylinder moves the feeding ejection mechanism and the material quantity adjustment mechanism backward, restoring them to their original positions. The feeding reset mechanism then resets.

[0004] However, this push rod self-resetting method can only rely on the lubricating particles to fall naturally by gravity at the discharge port. The discharge port can only be set directly above the position that needs lubrication, which means that the conveying mechanism must be placed directly above the lubrication position when it is working, which is inconvenient to use. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a die-casting punch pellet mill that does not need to be placed directly above the position that requires lubrication and is easy to use.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A die-casting punch pellet mill includes a storage system and a feeding system. The storage system includes a storage silo with an upward-opening top, and a feeding chamber extending through the lower part of the storage silo. The feeding system includes a motor located behind the feeding chamber and a conveying pipe located in front of the feeding chamber. The rear end of the conveying pipe communicates with the feeding chamber, and the front end is set as a discharge port. The motor is connected to a screw for rotating and conveying pellets, and the screw is sleeved inside the conveying pipe. The mill also includes a guiding system, which includes a guiding pipe and a rod cylinder. The rod cylinder includes a cylinder body and a rod that can be partially accommodated within the cylinder body. The guiding pipe is inclined downwards. The top end is movably connected to the rod body, and the upper part of the guide tube is movably connected to and communicates with the conveying tube. Different strokes of the rod body cause the guide tube to rotate, forming different tilt angles and creating two states: a working position where the guide tube moves forward and a default position where it moves backward. When the rod body moves backward, the guide tube is in the working position. When the motor starts, the screw transports the particles in the feeding chamber evenly forward in the conveying tube and drops them into the guide tube at the outlet, thus guiding them to the position of the particles required by the die-casting machine. When the motor stops, the screw stops working, and the rod body moves forward, bringing the guide tube to the default position.

[0008] According to an embodiment of the present invention, a die-casting punch pellet mill includes a feeding system that further includes a solenoid valve. The solenoid valve is connected to an air pipe A for external air intake. The system also includes an air pipe B and an air pipe C. One end of the air pipe B is connected to the solenoid valve and the other end is connected to the rear end of the cylinder body. One end of the air pipe C is connected to the solenoid valve and the other end is connected to the front end of the cylinder body. The solenoid valve controls the operation of the rod cylinder.

[0009] According to an embodiment of the present invention, a die-casting punch pellet mill is provided with an air pipe C connected in series with an air pipe D. The air pipe D is connected to a material guide pipe and can blow high-pressure gas from top to bottom into the inner cavity of the material guide pipe.

[0010] According to an embodiment of the present invention, a die-casting punch pellet mill is provided with an air regulating valve on each of the air pipes B, C and D to adjust the amount of air passing through.

[0011] According to an embodiment of the present invention, a die-casting punch pellet mill has an extension inlet integrally provided at the bottom end of the feed tube. The inner diameter of the extension inlet is smaller than the diameter of the feed tube and gradually decreases from top to bottom.

[0012] According to an embodiment of the present invention, a die-casting punch pellet mill further includes a fixing block A, a fixing block B, and a fixing block C. The fixing block A is fixed at the top end of the guide tube and connected to the shaft of the rod body. The fixing block B is fixed at the upper part of the guide tube, and the fixing block C is fixed at the front part of the conveying tube. The fixing block C is connected to the fixing block B through a connecting rod to form a shaft.

[0013] According to some embodiments of this utility model, it also includes a timer, which is electrically connected to the motor. After the motor starts, the timer begins to count down, and when the timer finishes counting down, the motor stops.

[0014] According to some embodiments of the present invention, a support system is also included. The support system includes a support rod and a support base connected to the bottom of the support rod. The support system provides support force for the pellet mill. The support rod includes an inner rod and an outer rod with inner and outer sleeves. The inner rod and the outer rod move up and down relative to each other to achieve different height changes of the support rod. The system also includes a latch set on the outer rod, which can lock the relative movement of the inner rod and the outer rod.

[0015] According to an embodiment of the present utility model, a die-casting punch pellet mill also includes a support plate, which is fixedly connected to the top of a support rod. The support plate has a sliding groove running in a front-to-back direction. The bottom surface of the upper part of the pellet mill is provided with screw holes. The upper part of the pellet mill can be adjusted in relative position to the support plate along the sliding groove and is fastened to the sliding groove by bolts and screw holes.

[0016] According to an embodiment of the present invention, a die-casting punch pellet mill also includes a knob, which is electrically connected to an indicator light to indicate the power supply status; it also includes a button, which is pressed to enter the debugging state and pressed again to return the pellet mill to the normal state.

[0017] In summary, the advantages of this utility model compared to the prior art are as follows: the lubricating particles in the feeding chamber are uniformly conveyed into the guide tube by the screw. The lubricating particles in the guide tube enter the designated position required by the punch. Since the guide tube can rotate forward to the working position and backward to the default position with different strokes of the rod body under the support of the rod cylinder, the guide tube can rotate forward to the working position and backward to the default position. Since the working position and the default position are both in front of the guide tube, the pellet mill will not be placed above the required feeding position, and there will be no possibility of obstructing the operation of the die casting machine or interfering with the die casting machine components. It is convenient and safe to use. Attached Figure Description

[0018] Figure 1 This is one of the partial structural schematic diagrams of the embodiment;

[0019] Figure 2 This is a partial structural schematic diagram of an embodiment;

[0020] Figure 3 This is a partial structural cross-sectional schematic diagram of an embodiment;

[0021] Figure 4 This is a partially enlarged schematic diagram of a portion of the structure in the embodiment;

[0022] Figure 5 This is a schematic diagram of the support system in its contracted state, as shown in the embodiment.

[0023] Figure 6 This is a schematic diagram of the support system in its extended state, as shown in the embodiment.

[0024] Figure 7This is one of the enlarged structural schematic diagrams of the embodiment;

[0025] Figure 8 This is the second partially enlarged structural schematic diagram of the embodiment;

[0026] Figure 9 This is a schematic diagram of the bottom view structure of an embodiment.

[0027] Figure label:

[0028] 11. Storage bin; 12. Feeding chamber; 13. Top cover; 2. Feeding system; 21. Motor; 22. Screw; 23. Conveying pipe; 231. Discharge port; 3. Guiding system; 31. Guiding pipe; 311. Inlet; 32. Air pipe A; 33. Solenoid valve; 34. Air pipe B; 35. Air pipe C; 36. Air pipe D; 37. Air regulating valve; 38. Rod cylinder; 381. Cylinder body; 382. Rod body; 391. Fixing block A; 392. Fixing block B; 393. Fixing block C; 41. Support rod; 411. Outer rod; 412. Inner rod; 42. Lock; 43. Support base; 44. Pallet; 45. Slide groove; 51. Knob; 52. Indicator light A; 53. Button; 54. Timer; 61. Screw hole Detailed Implementation

[0029] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] The present invention will be further described in detail below with reference to the accompanying drawings:

[0031] A die-casting machine punch pellet mill, such as Figures 1-9 As shown, it includes a storage system, a feeding system, and a guiding system. The storage system stores lubricating particles, the feeding system conveys the lubricating particles, and the guiding system guides the lubricating particles to a designated location. Specifically, as... Figure 1 As shown, the storage system includes a storage hopper 11 with an upward opening at the top and a feeding chamber 12 extending through the lower part of the storage hopper 11. This design of the storage hopper 11 facilitates the direct pouring of lubricating particles from the bag or bucket. The storage hopper 11 is preferably shaped with a large opening and a small body. Figure 1 and Figure 2As shown, the feeding system includes a motor 21 located at the rear of the feeding chamber 12 and a conveying pipe 23 located at the front of the feeding chamber 12. The rear end of the conveying pipe 23 is connected to the feeding chamber 12, and the front end is set as a discharge port 231. The motor 21 is connected to a screw 22 for rotating and conveying the particles. The screw 22 is sleeved inside the conveying pipe 23. The rotation of the motor 21 drives the screw 22 to rotate synchronously. The guiding system includes a guiding pipe 31 and a rod cylinder 38. The rod cylinder 38 includes a cylinder body 381 and a rod 382 that can be partially accommodated in the cylinder body 381. The guide tube 31 is inclined downward and its top end is movably connected to the rod 382. The upper part of the guide tube 31 is movably connected to the conveying tube 23 and communicates with it. Different strokes of the rod 382 cause the guide tube 31 to rotate and form different tilt angles, forming two states: the working position where the guide tube 31 moves forward and the default position where it moves backward. Preferably, the working position of the guide tube 31 is set when the rod 382 is at the rear end of the cylinder 381, and the default position of the guide tube 31 is set when the rod 382 is at the front end of the cylinder 381.

[0032] During operation, the rod 382 moves backward, causing the guide tube 31 to rotate forward to the working position. Then, the motor 21 starts, causing the screw 22 to transport the particles in the feeding chamber 12 evenly forward in the conveying tube 23. Due to gravity, the particles fall into the guide tube 31 at the discharge port 231. The guide tube 31 guides the particles diagonally downward to the position of the die-casting machine where the required particles are. When the required amount of particles is sufficient, the motor 21 stops, and the screw 22 stops working. Then, the rod 382 moves forward, causing the guide tube 31 to rotate backward and return to the default position.

[0033] The feeding system and the guiding system can be coordinated manually or through a preset program. When using a preset program, to achieve precise control, such as... Figure 8 As shown, a timer 54 can be set to control the duration of the above-mentioned work, thus controlling the time of each work cycle. For example, if the timer 54 is preset to 2 seconds, the above-mentioned work will repeat after 2 seconds. When the preset time does not meet the actual needs, the cycle time can be shortened or extended using the button on the timer 54. Simultaneously, since the screw 22 is used for conveying, the conveying amount per unit time is the same. By setting the timer 54, the conveying amount within each work cycle can be guaranteed to be the same, enabling precise control of the feeding amount. This ensures uniform lubrication of the punch each time, which helps to maintain work efficiency and extend the machine's lifespan.

[0034] To further address the issue of precise rotation control of the feed tube 31, such as... Figures 1-3As shown, a solenoid valve 33 is installed in the feeding system. The solenoid valve 33 is connected to an air pipe A32 for external air intake. Air pipe A32 can be connected to an external air pump to provide high-pressure air. An air pipe B34 is also installed, with one end connected to the solenoid valve 33 and the other end connected to the rear end of the cylinder 381. An air pipe C35 is also installed, with one end connected to the solenoid valve 33 and the other end connected to the front end of the cylinder 381. Adjusting the solenoid valve 33 controls the air volume in air pipes B34 and C35, causing changes in the air volume at both ends of the cylinder 381 to control the movement of the rod 38. 2. The stroke of extending cylinder 381: Specifically, when the air volume input from air pipe B34 to the rear end of cylinder 381 is greater than the air volume input from air pipe C35 to the front end of cylinder 381, rod 382 extends away from cylinder 381; conversely, rod 382 retracts towards cylinder 381. When adjusting solenoid valve 33 to dynamically change the air volume in air pipes B34 and C35, rod 382 produces extension and retraction motion. When adjusting solenoid valve 33 to keep the air volume in air pipes B34 and C35 constant, the relative position of rod 382 and cylinder 381 is fixed.

[0035] Based on this, since the punch operates at a high temperature, and the discharge point of the feed tube 31 is close to the high-temperature environment, some particles may melt before they fall off. This causes the melted particles to stick to the inner wall of the feed tube 31, thus attracting other normal particles and accumulating, causing blockage of the feed tube 31. To avoid this situation, such as... Figures 1-3 As shown, an air pipe D36 can be connected in series with the air pipe C35. The high-pressure gas in the solenoid valve 33 is simultaneously delivered to the air pipe D36 and the air pipe C35. The air pipe D36 connects to the feed pipe 31, allowing high-pressure gas to be blown out of the inner cavity of the feed pipe 31. The air pipe D36 is preferably located at the top of the feed pipe 31 to achieve optimal blowing effect. Under the impact of the high-pressure gas, particles adhering to the inner wall of the feed pipe 31 are promptly blown away, preventing further melting and accumulation. Simultaneously, the blowing force of the high-pressure gas, combined with gravity, accelerates the particles out of the feed pipe 31, shortening their time within the feed pipe 31 and reducing the chance of melting. Preferably, the high-pressure air blown into the feed pipe 31 by the air pipe D36 ensures that the air pressure inside the feed pipe 31 is always greater than the air pressure outside the feed pipe 31, i.e., the feed pipe 31 always maintains positive pressure. This ensures that lubricating particles only exit and do not enter in a relatively high-temperature external environment, thus avoiding the possibility of lubricating particles that have melted or partially melted due to high temperatures accumulating or melting within the feed pipe 31. like Figure 7 In order to control the amount of air passing through air pipes B34, C35 and D36 per unit time, each can be equipped with an air regulating valve 37. Rotating the air regulating valve 37 of air pipe B34 or air pipe C35 controls the amount of air in each, and can adjust the speed at which rod 382 is pushed out or retracted in cylinder 381. Rotating the air regulating valve 37 on air pipe D36 can control the amount of high-pressure gas blown into guide pipe 31.

[0036] Since most of the pellet mill components are made of metal, and the feed pipe 31, rod 382, ​​and conveying pipe 23 are all integrally molded, in order to make the movable connection between the top of the feed pipe 31 and the rod 382, ​​and the movable connection between the upper part and the conveying pipe 23 more stable and efficient, fixing blocks A391, B392, and C393 can be set. Fixing block A391 is fixed at the top of the feed pipe 31 and is axially connected to the rod 382. Fixing block B392 is fixed at the upper part of the feed pipe 31. Fixing block C393 is fixed at the front of the conveying pipe 23. Fixing block C393 is axially connected to fixing block B392 through a connecting rod.

[0037] To ensure the sealing of storage silo 11, such as Figure 5 As shown, a top cover 13 can be provided, which can be fastened to the top of the storage bin 11.

[0038] In addition, to allow the pellet mill to be placed directly on the ground or some operating platform, a support system can be installed. The storage system, feeding system, and guiding system constitute the upper part of the pellet mill, while the support system constitutes the lower part. Figure 5 and Figure 6 As shown, the support system includes a support rod 41 and a support base 43 connected to the bottom of the support rod 41. The support system provides support for the pellet mill. To further facilitate the adjustment of the pellet mill's height, the support rod 41 includes an inner rod 412 and an outer rod 411 with inner and outer sleeves. The relative vertical movement of the inner rod 412 and the outer rod 411 achieves different height changes of the support rod 41. It also includes a latch 42 mounted on the outer rod 411, which can lock the relative movement of the inner rod 412 and the outer rod 411. Figure 5 As shown, the inner rod 412 and the outer rod 411 are brought close together and locked by the latch 42, causing the support rod 41 to be in a shortened state, as... Figure 6 As shown, the inner rod 412 and outer rod 411 are spaced apart and locked together by the latch 42, keeping the support rod 41 in an extended state. It should be noted that to prevent the pellet mill from tipping over, through holes can be made around the support base 43 for fixing it to the ground or operating table using bolts, rivets, or other methods. The relative position of the inner rod 412 and outer rod 411 adjusts the vertical displacement of the upper part of the pellet mill. To make the position of the upper part of the pellet mill easier to adjust, such as... Figure 9 As shown, a support plate 44 can be installed, which is fixedly connected to the top of the support rod 41. The support plate 44 has a front-to-back sliding groove 45. The bottom surface of the upper part of the pellet mill is provided with screw holes 61. The upper part of the pellet mill can adjust its relative position to the support plate 44 along the sliding groove 45 and is fastened to the sliding groove by bolts engaging with the screw holes 61, so as to achieve horizontal displacement of the front-to-back position of the upper part of the pellet mill. In this way, the support system allows the upper part of the pellet mill to be adjusted in the front-to-back and up-to-down directions to flexibly match the required pellet position of the die-casting machine.

[0039] like Figure 5 and Figure 9 As shown, for ease of operation, a knob 51 can be installed on the pellet mill casing. Knob 51 is electrically connected to indicator light A52. Rotating knob 51 clockwise turns on the power, and indicator light A52 illuminates, indicating that the pellet mill is in working condition. In this state, motor 21, solenoid valve 33, etc., are all running, and lubricating pellets are being conveyed normally. Rotating knob 51 counterclockwise stops the pellet mill from working, and indicator light A52 goes out. Pressing button 53 puts the pellet mill into debugging mode. At this time, the feeding system and guiding system cycle once to determine whether the current settings meet the requirements of the die-casting machine. Pressing the button again restores the pellet mill to normal operation, and it will start working according to the pre-set program when it is in regular operation.

[0040] As can be seen from the above description, the above embodiments achieve the following technical effects: the storage system provides space for particle storage, the feeding system ensures uniform particle conveying, and the guiding system allows the pellet mill to be offset without being placed directly above the die-casting machine, avoiding mutual interference with the die-casting machine and making it convenient and safe to use.

[0041] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the appended claims.

Claims

1. A die casting machine punch particle machine, comprising a storage system and a feeding system, the storage system comprising a storage bin arranged in a top upward opening, and a feeding cavity is through in the lower part of the storage bin, characterized in that: the feeding system comprises a motor arranged at the rear side of the feeding cavity and a feeding pipe arranged at the front side of the feeding cavity, the rear end of the feeding pipe is communicated with the feeding cavity, and the front end is arranged as a discharge port, the motor is connected with a screw rod for rotating the conveying particles, and the screw rod is sleeved in the feeding pipe; further comprising a guide system, the guide system comprising a guide pipe and a rod cylinder, the rod cylinder comprising a cylinder body and a rod body partially contained in the cylinder body, the guide pipe is inclined downward and the top end is movably connected with the rod body, the upper part of the guide pipe is movably connected with the feeding pipe and communicated with each other; different strokes of the rod body make the guide pipe rotate to form different inclination angles to form two states of the working position of the guide pipe moving forward and the default position of the guide pipe moving backward; the rod body moves backward to make the guide pipe in the working position, the motor is started to make the screw rod uniformly transport the particles in the feeding cavity forward in the feeding pipe and drop into the guide pipe at the discharge port, so as to guide into the position of the required particles of the die casting machine; after the motor stops, the screw rod stops working, and the rod body moves forward to make the guide pipe in the default position.

2. A die caster punch chipper as claimed in claim 1 wherein: the guide system further comprises a solenoid valve, the solenoid valve is connected with a gas pipe A for external air inlet, further comprising a gas pipe B and a gas pipe C, one end of the gas pipe B is connected with the solenoid valve, and the other end is connected with the rear end of the cylinder body, one end of the gas pipe C is connected with the solenoid valve, and the other end is connected with the front end of the cylinder body, and the solenoid valve controls the working of the rod cylinder.

3. A die caster punch chipper as claimed in claim 2 wherein: the gas pipe C is connected with a gas pipe D in series, the gas pipe D communicates with the guide pipe and can blow high pressure gas from top to bottom in the inner cavity of the guide pipe.

4. A die caster punch chipper as claimed in claim 3 wherein: the gas pipe B, the gas pipe C and the gas pipe D are respectively provided with a gas adjusting valve for adjusting the gas amount.

5. A die caster punch chipper as claimed in claim 4 wherein: the bottom end of the guide pipe is integrally provided with an extension inlet, the inner diameter of the extension inlet is smaller than the diameter of the guide pipe and gradually reduces from top to bottom.

6. A die caster punch chipper as claimed in claim 5 wherein: further comprising a fixed block A, a fixed block B and a fixed block C, the fixed block A is fixed on the top end of the guide pipe and connected with the shaft of the rod body, the fixed block B is fixed on the upper part of the guide pipe, and the fixed block C is fixed on the front part of the feeding pipe, and the fixed block C is connected with the fixed block B through a connecting rod to form a shaft connection.

7. A die caster punch particulator as claimed in any one of claims 1 to 6 wherein: further comprising a timer, the timer is electrically connected with the motor, the timer starts countdown after the motor is started, and the motor stops when the countdown of the timer is finished.

8. A die caster punch particle machine according to any one of claims 1 to 6 wherein: further comprising a support system, the support system comprising a support rod and a support seat connected at the bottom of the support rod, the support system provides support force for the particle machine, the support rod comprises an inner rod and an outer rod, the inner rod and the outer rod move up and down relative to each other to realize different height changes of the support rod, further comprising a lock catch arranged on the outer rod, the lock catch can lock the relative movement of the inner rod and the outer rod.

9. A die caster punch particulator as claimed in claim 8 wherein: It also includes a supporting plate, the supporting plate is fixedly connected with the top of the supporting rod, the supporting plate is provided with a front and back sliding groove, the granulator upper part is provided with a screw hole, the granulator upper part can be adjusted with the relative position of the supporting plate along the sliding groove, and is fastened on the sliding groove through the cooperation of the bolt and the screw hole.

10. A die caster punch chipper as claimed in claim 9 wherein: It also includes a knob, the knob is electrically connected with an indicating lamp for indicating the working state of the power supply; it also includes a button, pressing the button makes the granulator enter the debugging state, and pressing the button again makes the granulator return to the normal state.

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