Punching machine table for sprue bush of die-casting die

By designing a die-casting mold sprue opening machine with a built-in spray and limiting structure, the problems of drill bit heat and debris were solved, achieving safe and efficient sprue opening processing, and reducing energy consumption and operational complexity.

CN119282192APending Publication Date: 2025-01-10HAOXIN AUTO PARTS MFG WUXI CO LTD
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Patent Information

Application Number
CN202411353783.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-26
Publication Date
2025-01-10

AI Technical Summary

Technical Problem

During the process of drilling the sprue bushing, the drill bit comes into contact with the end wall of the sprue bushing, generating heat and debris, which reduces safety and requires a water-cooled flushing system, increasing energy consumption and operational complexity.

Method used

Design a die-casting mold sprue opening machine, which uses a cylinder to drive the transmission plate and piston system to realize the integrated operation of liquid spraying and drilling. By limiting the sprue with an inclined screw, combined with the sprayer and guide hole structure, efficient cooling and debris removal are achieved.

Benefits of technology

It enables simultaneous drilling and spraying operations, reduces the need for pumps and pipelines, improves processing safety and energy efficiency, and reduces energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a die-casting die sprue bush tapping machine table which comprises a rack, a frame cavity formed in the middle of the rack, an air cylinder installed at the top of the rack, a transmission plate in transmission with the end of the air cylinder, motors fixed to the tops of the left end and the right end of the transmission plate, drill bits in transmission with the ends of the motors and a transverse plate installed in the middle, close to the frame cavity, of the rack. Rectangular supporting tables for placing the sprue bush are mounted at the tops of the left end and the right end of the transverse plate, and a trough is formed in the middle of the upper end of each supporting table. The die-casting die sprue bush tapping machine table has the beneficial effects that the liquid drawing and discharging processes are generated along with the vertical displacement of the transmission plate and the piston driven by the air cylinder, a pump body is omitted in the whole process, meanwhile, a pipeline does not need to be erected outwards, the whole machine is integrated, and the production efficiency is improved. The drilling operation and the spraying operation are used in cooperation, namely drilling liquid spraying is achieved, liquid spraying is stopped when drilling is stopped, the machining effect is better, and meanwhile more energy saving and environment protection are achieved.
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Description

Technical Field

[0001] The invention relates to the technical field of sprue sleeve processing, in particular to a die-casting mold sprue sleeve hole punching machine. Background Art

[0002] The sprue sleeve is also called a nozzle, a filling nozzle, or a sprue pouring. It is a component of the flow channel that allows the molten plastic material to be injected from the nozzle of the injection molding machine into the inside of the mold. It is used to connect the molding mold and the metal accessories of the injection molding machine. There is a through hole in the sprue sleeve, and this machine is used to open the hole in the sprue sleeve.

[0003] When drilling a hole, a drilling machine is used to drill the hole in the gate sleeve. However, when drilling a hole, the drill bit will contact the end wall of the gate sleeve to generate heat and debris. The heat will cause the end wall of the gate sleeve to deform easily, and the debris will block the pores, affecting the safety of the gate sleeve when drilling a hole. When simply flushing the gate sleeve with water, a water-cooled flushing system needs to be configured, and a separate pump body and pipeline need to be set up on the machine, which is time-consuming and labor-intensive, and also increases the energy consumption during the processing of the gate sleeve. Summary of the invention

[0004] The object of the present invention is to provide a die-casting mold gate sleeve hole drilling machine to solve the problem proposed in the above background technology that a drilling machine is used to drill the gate sleeve when drilling the hole. However, when drilling the hole, the drill bit will contact the end wall of the gate sleeve to generate heat and debris. The heat will cause the end wall of the gate sleeve to deform simply, and the debris will block the pores, affecting the safety of the gate sleeve when drilling the hole. When simply flushing the gate sleeve with water, a water-cooled flushing system needs to be configured, and a separate pump body and pipeline need to be set up on the machine, which is time-consuming and labor-intensive, and also increases the energy consumption during the processing of the gate sleeve.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a die-casting mold gate sleeve hole opening machine, comprising a frame, a frame cavity opened in the middle of the frame, a cylinder installed on the top of the frame, a transmission plate driven by the cylinder ends, motors fixed at the tops of the left and right ends of the transmission plate, a drill driven by the ends of the motor, and a horizontal plate installed in the middle of the frame near the frame cavity, wherein the tops of the left and right ends of the horizontal plate are both equipped with a rectangular support platform for placing the gate sleeve, a material trough is opened in the middle of the upper end of the support platform, and the top wall of the support platform is distributed in a ring shape around the material trough. A platform notch is provided, and a screw is penetrated on the end wall of the platform notch on one side close to the winding groove. The end wall of the platform notch on the side close to the winding groove is perpendicular to the end wall on the side away from the winding groove, so that the screw passing through the platform notch and entering the winding groove is arranged at an angle. Then, after the screw is screwed, the end of the screw is inclined to rest against the end wall of the gate sleeve in the winding groove and limit the gate sleeve. A sprayer is provided near the transmission plate of the frame, and a storage dish is installed in the frame cavity near the lower end of the horizontal plate of the frame, and a dish cavity for storing liquid is opened inside the storage dish.

[0006] Preferably, the sprayer includes a piston installed at the lower end of a transmission plate, a side plate movably connected to the side end of the transmission plate through a plate opening and fixedly connected to the frame and the cross plate, a liquid accumulation chamber opened at the end wall of the side plate close to the support platform, a spray hole opened at the end wall of the liquid accumulation chamber close to the support platform, a fixed platform installed in the middle of the upper end of the cross plate for corresponding to the piston, a platform cavity opened inside the fixed platform, an upper flow channel formed in the left and right end walls of the bottom of the fixed platform and the end walls of the side plate, a lower flow channel formed inside the cross plate and the side plate, a one-way valve arranged in the lower flow channel and the middle of the upper flow channel, and a hose for conveying liquid connected to the lower end of the lower flow channel.

[0007] Preferably, a rubber sleeve is provided on the bottom outer wall of the piston to increase the sealing performance when the piston penetrates into the table cavity of the fixed table, so that when the piston moves and displaces in the table cavity, a negative pressure is formed in the area at the lower end of the piston in the table cavity.

[0008] Preferably, the side panels are symmetrically distributed on both sides of the fixing platform, and the side panels and the fixing platform are fixedly connected.

[0009] Preferably, the one-way valve divides the upper flow channel and the lower flow channel into two ends, and the opening and closing states of the two one-way valves are opposite.

[0010] Preferably, the one-way valve in the upper flow channel is in an open state, and the one-way valve in the lower flow channel is in a closed state, so that the spray hole, the liquid accumulation cavity, the upper flow channel, and the platform cavity form a flow pipeline.

[0011] Preferably, the one-way valve in the upper flow channel is in a closed state, and the one-way valve in the lower flow channel is in an open state, so that the hose, the lower flow channel, and the platform cavity form a flow pipeline.

[0012] Preferably, the cylinder and the transmission plate are transmitted to each other, and two motors are arranged on the transmission plate, and the bottom of each motor drives a single drill bit. When pushed by the cylinder, the transmission plate moves, driving the two motors and the two driven drill bits to move, so as to contact and drill holes with the gate sleeve.

[0013] Preferably, guide holes corresponding to the dish cavities of the storage dishes are vertically penetrated at the left and right end walls of the transverse plate, and the guide holes are used to guide the liquid on the upper end of the transverse plate into the dish cavities.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The process of drawing and discharging liquid in the present invention is generated with the up and down displacement of the transmission plate and the piston driven by the cylinder. The whole process saves the pump body and there is no need to set up pipelines outside, so that the whole machine is integrated. The movements of drilling operation and spraying operation are used in coordination, that is, drilling sprays liquid, and stopping drilling stops spraying liquid. The processing effect is better and it is also more energy-saving and environmentally friendly.

[0016] 2. The flow guide hole of the present invention is used to guide the liquid on the upper end of the horizontal plate to the dish cavity to recover the liquid. When replacing the liquid, the storage dish is directly replaced by removing the storage dish in the rack cavity of the rack and replacing the liquid in the dish cavity of the removed storage dish.

[0017] 3. A screw is provided at the inclined end wall of the notch of the platform of the present invention, so that the screw is obliquely extruded on the end wall of the gate sleeve, so that the gate sleeve has dual axial and radial limiting performances, which limits and positions the gate sleeve and facilitates subsequent drilling processing of the gate sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a die-casting mold gate sleeve hole opening machine of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the upper flow channel and the lower flow channel of a die casting mold gate sleeve opening machine of the present invention;

[0020] Figure 3 It is a schematic diagram of the hose structure of a die-casting mold gate sleeve hole opening machine of the present invention;

[0021] Figure 4 It is a schematic diagram of the support platform structure of a die-casting mold gate sleeve opening machine of the present invention;

[0022] Figure 5 A die casting mold gate sleeve opening machine according to the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0023] In the figure: 1. frame; 2. frame cavity; 3. cylinder; 4. transmission plate; 5. motor; 6. drill bit; 7. cross plate; 8. piston; 9. side plate; 10. plate mouth; 11. fixing table; 12. table cavity; 13. liquid accumulation cavity; 14. spray hole; 15. upper flow channel; 16. lower flow channel; 17. one-way valve; 18. hose; 19. storage dish; 20. dish cavity; 21. support table; 22. material trough; 23. table notch; 24. screw. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-5 The present invention provides a technical solution: a die-casting mold gate sleeve hole punching machine, comprising a frame 1, a frame cavity 2 opened in the middle of the frame 1, a cylinder 3 installed on the top of the frame 1, a transmission plate 4 driven by the ends of the cylinder 3, a motor 5 fixed on the top of the left and right ends of the transmission plate 4, a drill 6 driven by the ends of the motor 5, and a horizontal plate 7 installed near the middle of the frame 1 near the frame cavity 2. The cylinder 3 and the transmission plate 4 are driven, and two motors 5 are arranged on the transmission plate 4, and a single drill 6 is driven at the bottom of each motor 5. Under the push of the cylinder 3, the transmission plate 4 is displaced, driving the two motors 5 and the two driven drills 6 to be displaced, so as to contact with the gate sleeve and punch holes;

[0028] A storage dish 19 is installed in the rack cavity 2 near the lower end of the horizontal plate 7 of the frame 1. A dish cavity 20 for storing liquid is opened inside the storage dish 19. The left and right end walls of the horizontal plate 7 are vertically penetrated with diversion holes corresponding to the dish cavity 20 of the storage dish 19. The diversion holes are used to divert the liquid at the upper end of the horizontal plate 7 to the dish cavity 20. The dish cavity 20 is filled with cooling liquid for drilling, so that the liquid required for cooling and flushing is prepared for the entire hole opening process.

[0029] A rectangular support platform 21 for placing a gate sleeve is installed on the top of both left and right ends of the horizontal plate 7. A material groove 22 is opened in the middle of the upper end of the support platform 21. A platform notch 23 is opened in a ring-shaped manner around the material groove 22 on the top wall of the support platform 21. A screw rod 24 is passed through the end wall of the platform notch 23 close to the material groove 22. The end wall of the platform notch 23 close to the material groove 22 is perpendicular to the end wall of the side away from the material groove 22, so that the screw rod 24 passing through the platform notch 23 and penetrating into the material groove 22 is inclined. Then, after the screw rod 24 is screwed, the end of the screw rod 24 is inclined to abut against the end wall of the gate sleeve in the material groove 22, and the gate sleeve is limited.

[0030] When placing the material, the gate sleeve is placed in the material trough 22, and the four screws 24 are screwed so that the ends of the four screws 24 are pressed against the end wall of the gate sleeve, and the screws 24 are passed through the inclined end wall of the platform notch 23 so that the screws 24 are inclinedly pressed against the end wall of the gate sleeve, so that the gate sleeve has axial and radial dual limiting performance, which limits and positions the gate sleeve and facilitates the subsequent drilling processing of the gate sleeve;

[0031] A sprayer is provided on the frame 1 near the transmission plate 4;

[0032] The sprayer is used to draw liquid and spray the liquid to the workstation processed by the drill bit 6, to process the high temperature and debris generated by the opening of the end wall of the sprue sleeve, to clean up the debris and reduce the high temperature generated by the opening;

[0033] The sprayer includes a piston 8 installed at the lower end of the transmission plate 4, a side plate 9 movably connected to the side end of the transmission plate 4 through a plate opening 10 and fixedly connected to the frame 1 and the cross plate 7, a liquid accumulation cavity 13 opened at the end wall of one side of the side plate 9 close to the support platform 21, a spray hole 14 opened at the end wall of the liquid accumulation cavity 13 close to the support platform 21, a fixing platform 11 installed at the middle part of the upper end of the cross plate 7 for corresponding to the piston 8, a platform cavity 12 opened inside the fixing platform 11, an upper flow channel 15 formed in the left and right end walls of the bottom of the fixing platform 11 and the end wall of the side plate 9, and a lower flow channel 16 formed inside the cross plate 7 and the side plate 9. , the one-way valve 17 arranged in the middle of the lower flow channel 16 and the upper flow channel 15, and the hose 18 for conveying liquid connected to the lower end of the lower flow channel 16. When the transmission plate 4 is driven by the cylinder 3, the motor 5 and the drill bit 6 move downward to drill the gate sleeve. At the same time, the piston 8 penetrates into the platform cavity 12 to generate negative pressure in the platform cavity 12. Under the action of the negative pressure, the liquid in the platform cavity 12 is pushed to the spray hole 14 of the liquid accumulation cavity 13, and the liquid is sprayed to the end wall of the gate sleeve placed in the material trough 22 of the support platform 21 along the inclined spray hole 14. The gate sleeve is sprayed when the hole is opened to cool it down and clean up the debris;

[0034] Specifically, the side plates 9 are symmetrically arranged on both sides of the fixed platform 11, and the side plates 9 and the fixed platform 11 are fixedly connected, and are used to arrange the flow pipes for discharging and drawing liquid respectively. The bottom outer wall of the piston 8 is provided with a rubber sleeve, which is used to increase the sealing when the piston 8 penetrates into the platform cavity 12 of the fixed platform 11 and contacts with the platform cavity 12, so that when the piston 8 moves and displaces in the platform cavity 12, the area at the lower end of the piston 8 in the platform cavity 12 forms a better negative pressure;

[0035] Among them, the one-way valve 17 divides the upper flow channel 15 and the lower flow channel 16 into two ends, and the opening and closing states of the two one-way valves 17 are opposite:

[0036] When the piston 8 moves downward in the platform cavity 12, the negative pressure generated causes the liquid in the platform cavity 12 to flow along the platform cavity 12, the upper flow channel 15, and a portion of the connection end between the lower flow channel 16 and the upper flow channel 15, driving the one-way valve 17 in the upper flow channel 15 to be in an open state, and the one-way valve 17 in the lower flow channel 16 to be in a closed state. At this time, the spray hole 14, the liquid accumulation cavity 13, the upper flow channel 15, and the platform cavity 12 form a flow channel for discharging liquid. Under the action of negative pressure, the liquid is sprayed out along the spray hole 14 obliquely arranged at the end wall of the liquid accumulation cavity 13, and sprays the end wall of the gate sleeve placed in the material trough 22;

[0037] When the piston 8 moves upward in the platform cavity 12, negative pressure is generated, driving the one-way valve 17 in the upper flow channel 15 to be in a closed state, and the one-way valve 17 in the lower flow channel 16 to be in an open state. Under the action of negative pressure, the hose 18 extending to the bottom of the dish cavity 20 draws liquid, and the hose 18, the lower flow channel 16, and the platform cavity 12 form a flow channel, and the liquid flows into the platform cavity 12 along the lower flow channel 16, preparing for the next downward movement of the piston 8;

[0038] The process of drawing and discharging liquid occurs with the up and down displacement of the transmission plate 4 and the piston 8 driven by the cylinder 3. The whole process saves the pump body and there is no need to set up pipelines outside, so that the whole machine is integrated. The movements of drilling operation and spraying operation are used in coordination, that is, drilling sprays liquid, and stopping drilling stops the spraying of liquid. The processing effect is better and it is also more energy-saving and environmentally friendly.

[0039] In summary, when the die-casting mold gate sleeve drilling machine is used, the dish cavity 20 is filled with the cooling liquid for drilling, and the liquid required for cooling and flushing is prepared for the entire drilling process;

[0040] Place the material, place the gate sleeve in the material trough 22, and screw the four screws 24 so that the ends of the four screws 24 are pressed against the end wall of the gate sleeve, and the screws 24 are passed through the inclined end wall of the platform notch 23, so that the screws 24 are inclined and pressed against the end wall of the gate sleeve, so that the gate sleeve has axial and radial dual limiting performance, which limits and positions the gate sleeve and facilitates the subsequent drilling processing of the gate sleeve;

[0041] The cylinder 3 and the transmission plate 4 are driven by each other. Two motors 5 are arranged on the transmission plate 4, and the bottom of each motor 5 drives a single drill 6. Under the push of the cylinder 3, the transmission plate 4 moves, driving the two motors 5 and the two driven drills 6 to move, which are used to contact and punch holes with the sprue sleeve. When the transmission plate 4 moves, the sprayer is driven to operate;

[0042] The sprayer is used to draw liquid and spray the liquid to the workstation processed by the drill bit 6, to process the high temperature and debris generated by the opening of the end wall of the sprue sleeve, to clean up the debris and reduce the high temperature generated by the opening;

[0043] The transmission plate 4 in the sprayer is driven by the cylinder 3, and the motor 5 and the drill bit 6 move downward to drill holes in the gate sleeve. At the same time, the piston 8 penetrates into the platform cavity 12 to generate negative pressure in the platform cavity 12. Under the action of the negative pressure, the liquid in the platform cavity 12 is pushed to the spray hole 14 of the liquid accumulation cavity 13. Along the inclined spray hole 14, the liquid is sprayed to the end wall of the gate sleeve placed in the material trough 22 of the support platform 21, and the gate sleeve is sprayed when the hole is opened to cool it down and clean up the debris.

[0044] Among them, the one-way valve 17 divides the upper flow channel 15 and the lower flow channel 16 into two ends, and the opening and closing states of the two one-way valves 17 are opposite:

[0045] When the piston 8 moves downward in the platform cavity 12, the negative pressure generated causes the liquid in the platform cavity 12 to flow along the platform cavity 12, the upper flow channel 15, and a portion of the connection end of the lower flow channel 16 and the upper flow channel 15, driving the one-way valve 17 in the upper flow channel 15 to be in an open state, and the one-way valve 17 in the lower flow channel 16 to be in a closed state. At this time, the spray hole 14, the liquid accumulation cavity 13, the upper flow channel 15, and the platform cavity 12 form a flow channel for discharging liquid. Under the action of negative pressure, the liquid flows along the accumulation cavity 13. The spray hole 14 obliquely arranged at the end wall of the liquid cavity 13 sprays the end wall of the gate sleeve placed in the material trough 22, and the left and right end walls of the horizontal plate 7 are vertically penetrated with guide holes corresponding to the dish cavity 20 of the storage dish 19. The guide holes are used to guide the liquid at the upper end of the horizontal plate 7 to the dish cavity 20 to recover the liquid. When replacing the liquid, the storage dish 19 is directly replaced, the storage dish 19 in the rack cavity 2 of the rack 1 is removed, and the liquid in the dish cavity 20 in the removed storage dish 19 can be replaced;

[0046] When the piston 8 moves upward in the platform cavity 12, negative pressure is generated, driving the one-way valve 17 in the upper flow channel 15 to be in a closed state, and the one-way valve 17 in the lower flow channel 16 to be in an open state. Under the action of negative pressure, the hose 18 extending to the bottom of the dish cavity 20 draws liquid, and the hose 18, the lower flow channel 16, and the platform cavity 12 form a flow channel, and the liquid flows into the platform cavity 12 along the lower flow channel 16, preparing for the next downward movement of the piston 8;

[0047] The process of drawing and discharging liquid occurs with the up and down displacement of the transmission plate 4 and the piston 8 driven by the cylinder 3. The whole process saves the pump body and there is no need to set up pipelines outside, so that the whole machine is integrated. The movements of drilling operation and spraying operation are used in coordination, that is, drilling sprays liquid, and stopping drilling stops the spraying of liquid. The processing effect is better and it is also more energy-saving and environmentally friendly.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A die casting mold gate sleeve hole drilling machine, comprising a frame (1), a frame cavity (2) opened in the middle of the frame (1), a cylinder (3) mounted on the top of the frame (1), a transmission plate (4) driven by the ends of the cylinder (3), a motor (5) fixed at the top of the left and right ends of the transmission plate (4), a drill bit (6) driven by the ends of the motor (5), and a horizontal plate (7) mounted on the middle of the frame (1) near the frame cavity (2), characterized in that: A rectangular support platform (21) for placing a gate sleeve is installed on the top of both left and right ends of the horizontal plate (7), a material groove (22) is opened in the middle of the upper end of the support platform (21), and a platform notch (23) is opened in a ring-shaped manner around the material groove (22) on the top wall of the support platform (21), and a screw (24) is passed through the end wall of the platform notch (23) close to the material groove (22), and the end wall of the platform notch (23) close to the material groove (22) is perpendicular to the end wall of the side away from the material groove (22). , so that the screw rod (24) that is connected along the platform notch (23) and penetrates into the winding groove (22) is arranged at an angle, and then, after the screw rod (24) is screwed, the end of the screw rod (24) is inclined to abut against the end wall of the gate sleeve in the winding groove (22), and limit the gate sleeve. The frame (1) is provided with a sprayer near the transmission plate (4), and a storage dish (19) is installed in the frame cavity (2) near the lower end of the cross plate (7) of the frame (1), and a dish cavity (20) for storing liquid is opened inside the storage dish (19).

2. A die casting mold gate sleeve hole drilling machine according to claim 1, characterized in that: The sprayer comprises a piston (8) mounted at the lower end of a transmission plate (4), a side plate (9) movably connected to the side end of the transmission plate (4) through a plate opening (10) and fixedly connected to the frame (1) and the transverse plate (7), a liquid accumulation chamber (13) provided at an end wall of one side of the side plate (9) close to the support platform (21), a spray hole (14) provided at an end wall of one side of the liquid accumulation chamber (13) close to the support platform (21), a fixed platform (11) mounted at the middle of the upper end of the transverse plate (7) and used to correspond to the piston (8), a platform chamber (12) provided inside the fixed platform (11), an upper flow channel (15) formed in the left and right end walls of the bottom of the fixed platform (11) and the end wall of the side plate (9), a lower flow channel (16) formed inside the transverse plate (7) and the side plate (9), a one-way valve (17) provided in the middle of the lower flow channel (16) and the upper flow channel (15), and a hose (18) for conveying liquid connected to the lower end of the lower flow channel (16).

3. A die casting mold gate sleeve hole drilling machine according to claim 2, characterized in that: The outer wall of the bottom of the piston (8) is provided with a rubber sleeve, which is used to increase the sealing performance when the piston (8) penetrates into the platform cavity (12) of the fixed platform (11) when in contact with the platform cavity (12), so that when the piston (8) moves and displaces in the platform cavity (12), a negative pressure is formed in the area of ​​the platform cavity (12) located at the lower end of the piston (8).

4. The die casting mold gate sleeve hole drilling machine according to claim 2, characterized in that: The side plates (9) are symmetrically distributed on both sides of the fixing platform (11), and the side plates (9) and the fixing platform (11) are fixedly connected.

5. The die casting mold gate sleeve hole drilling machine according to claim 2, characterized in that: The one-way valve (17) divides the upper flow channel (15) and the lower flow channel (16) into two ends, and the opening and closing states of the two one-way valves (17) are opposite.

6. The die-casting mold gate sleeve hole drilling machine according to claim 5, characterized in that: The one-way valve (17) in the upper flow channel (15) is in an open state, and the one-way valve (17) in the lower flow channel (16) is in a closed state, so that the spray hole (14), the liquid accumulation cavity (13), the upper flow channel (15), and the platform cavity (12) form a flow pipeline.

7. The die casting mold gate sleeve hole drilling machine according to claim 5, characterized in that: The one-way valve (17) in the upper flow channel (15) is in a closed state, and the one-way valve (17) in the lower flow channel (16) is in an open state, so that the hose (18), the lower flow channel (16) and the platform cavity (12) form a flow pipeline.

8. The die casting mold gate sleeve hole drilling machine according to claim 1, characterized in that: The cylinder (3) and the transmission plate (4) are driven by each other, and two motors (5) are arranged on the transmission plate (4). The bottom of each motor (5) drives a single drill bit (6). When the cylinder (3) drives the transmission plate (4), the transmission plate (4) moves, driving the two motors (5) and the two driven drill bits (6) to move, so as to contact with the sprue sleeve and drill holes.

9. The die-casting mold gate sleeve hole drilling machine according to claim 1, characterized in that: The left and right end walls of the transverse plate (7) are vertically penetrated with flow guide holes corresponding to the dish cavity (20) of the storage dish (19), and the flow guide holes are used to guide the liquid at the upper end of the transverse plate (7) into the dish cavity (20).