Air hole drill for tire mold

Abstract

The utility model relates to the technical field of tire mold processing, and provides an air hole drill for a tire mold, which comprises a base, the rear side of the base is fixedly connected with a fixing frame, the top of the fixing frame is fixedly connected with an air cylinder, and the bottom of the output end of the air cylinder penetrates through the fixing frame and is fixedly connected with a motor. The hollow drill bit is arranged to be matched with the air inlet pipe, high-pressure airflow is continuously sprayed into the air holes through the air supply holes, the airflow rapidly brings metal scraps generated by machining out of the air holes along surface lines of the drill bit, and the situation that the scraps are accumulated in drill bit grooves to cause clamping or hole diameter errors is avoided; meanwhile, airflow cools the drill bit and the inner wall of the air hole in real time, tool abrasion caused by high temperature is reduced, the service life of the drill bit is prolonged, airflow circulation is formed by combining a filtering and exhausting assembly and a hose, exhausted air containing scraps is conveyed to an air inlet pipe again after being filtered, and continuous cleaning of the scraps and cyclic utilization of the airflow are achieved.

Description

Technical Field

[0001] This utility model relates to the field of tire mold processing technology, and in particular to a pore drill for tire molds. Background Technology

[0002] Tire mold processing is a core part of tire manufacturing. Through steps such as precision design, rough machining, fine machining, electrical discharge machining, and assembly inspection, materials such as steel are processed into molds for tire vulcanization. The precision of these molds directly affects the tire's shape, tread pattern, and performance.

[0003] Processing pores in tire molds is a key step in vulcanized tire manufacturing. Current technology generally uses general-purpose drill bits with external coolant to flush away debris, but this method has the following drawbacks: Tire mold surfaces are mostly complex curved surfaces and made of H13 mold steel. Traditional drill bits have poor chip removal, causing debris to accumulate in the drill grooves, leading to drill bit jamming, hole diameter errors, and shortened tool life. Secondly, the external coolant has limited penetration ability and cannot completely remove metal debris from the tiny pores, requiring frequent machine shutdowns for cleaning, reducing processing continuity, and making it unsuitable for use. Utility Model Content

[0004] In view of this, the present invention proposes a pore drill for tire molds, which can continuously spray air into the pores during the pore-opening process of the tire mold, so that the waste chips accumulated inside the pores can be discharged from the pores along the texture of the drill bit surface, avoiding the accumulation of debris in the drill bit grooves, which can cause problems such as drill bit jamming, hole diameter error and shortened tool life.

[0005] The technical solution of this utility model is implemented as follows: This utility model provides a pneumatic drill for tire molds, including a base, a fixing frame fixedly connected to the rear side of the base, a cylinder fixedly connected to the top of the fixing frame, a motor fixedly connected to the bottom of the output end of the cylinder through the fixing frame, an air inlet pipe fixedly connected to the bottom of the output end of the motor, an air delivery hole opened on the surface of the air inlet pipe, a hollow drill bit fixedly connected to the bottom of the inner cavity of the air inlet pipe, a fixing cover fitted on the surface of the air inlet pipe, both sides of the fixing cover being fixedly connected to the motor through mounting brackets, a baffle fixedly connected to the surface of the base, a filter exhaust assembly fixedly connected to the rear side of the baffle, a flexible hose connected to the outlet of the filter exhaust assembly, and the front end of the flexible hose connected to the fixing cover.

[0006] More preferably, the filtration and exhaust assembly includes a filter box, the front of which is fixedly connected to a baffle cover, a filter element fixedly connected between the two sides of the inner cavity of the filter box, an air inlet shell connected to both sides of the baffle cover, a conveying pipe connected to the top of the air inlet shell, the end of the conveying pipe away from the air inlet shell connected to the filter box, a cleaning mechanism fixedly connected to the bottom of the inner cavity of the filter box, a fan fixedly connected to the top of the filter box, an air inlet on the left side of the fan connected to the filter box, and an air outlet on the right side of the fan connected to a flexible hose.

[0007] More preferably, the cleaning mechanism includes an electric push rod, a toothed plate is fixedly connected to the right side of the output end of the electric push rod, a gear is engaged at the top of the toothed plate, flexible scrapers are fixedly connected to both sides of the top of the gear, and the front side of the gear is movably connected to the inner wall of the filter box.

[0008] More preferably, the front and rear sides of the toothed plate are fixedly connected to a sliding sleeve, and the inner wall of the sliding sleeve is slidably connected to a sliding rod, with both sides of the sliding rod being fixedly connected to the inner wall of the filter box.

[0009] More preferably, a cleaning baffle is provided on the rear side of the filter box, and the front side of the cleaning baffle is fixedly connected to the filter box by bolts. A block is provided at the bottom of the air inlet shell, and the top of the block extends through the inner cavity of the air inlet shell.

[0010] More preferably, the inner wall of the air intake pipe is provided with threads for use with the hollow drill bit, and the surface of the hollow drill bit is fixedly connected to the air intake pipe by the threads.

[0011] More preferably, the inner wall of the fixed cover is movably connected to the surface of the air intake pipe via a bearing, and the top of the base is provided with a T-shaped groove for a fixing clamp.

[0012] The air hole drill for tire molds of this utility model has the following advantages over the prior art:

[0013] (1) By setting a hollow drill bit and matching it with the air inlet pipe, high-pressure airflow is continuously injected into the air hole through the air delivery hole. The airflow carries the metal chips generated during processing out of the air hole quickly along the surface texture of the drill bit, avoiding the accumulation of chips in the drill bit groove that may cause jamming or hole diameter error. At the same time, the airflow cools the drill bit and the inner wall of the air hole in real time, reducing tool wear caused by high temperature and extending the service life of the drill bit. Combined with the filter exhaust component and the hose, an airflow circulation is formed, and the discharged chip-containing air is filtered and re-delivered to the air inlet pipe, realizing continuous chip cleaning and airflow recycling, reducing the frequency of machine downtime for cleaning during processing.

[0014] (2) By setting up a filter box, the filter element installed inside it is used to filter the air containing debris, intercept metal dust and debris, and prevent them from entering the circulating airflow and causing secondary pollution. The flexible scraper of the cleaning mechanism periodically scrapes the surface of the filter element to avoid the filter element from clogging and causing airflow attenuation, ensuring stable jet pressure. The baffle and air inlet shell concentrate the splashed debris into the filter box, reducing the dust concentration in the processing area. The block and cleaning baffle facilitate the regular cleaning of accumulated debris, reducing maintenance downtime. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is the front view of the present invention;

[0017] Figure 2 This is a rear view of the present invention;

[0018] Figure 3 This is a cross-sectional view of the air inlet pipe, the fixing cover, and the hollow drill bit of this utility model;

[0019] Figure 4 This is a cross-sectional view of the filter box of this utility model;

[0020] Figure 5 This is a schematic diagram of the baffle, block, and air inlet shell of this utility model.

[0021] The components include: 1. Base; 2. Fixing frame; 3. Cylinder; 4. Motor; 5. Inlet pipe; 6. Air supply hole; 7. Hollow drill bit; 8. Fixing cover; 9. Mounting bracket; 10. Material baffle; 11. Filter and exhaust assembly; 12. Hose; 111. Filter box; 112. Filter element; 113. Inlet shell; 114. Delivery pipe; 115. Fan; 116. Block; 117. Cleaning mechanism; 1171. Electric actuator; 1172. Toothed plate; 1173. Gear; 1174. Flexible scraper. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] like Figure 1-5 As shown, this utility model discloses a tire mold air hole drill, including a base 1, a fixing frame 2 fixedly connected to the rear side of the base 1, a cylinder 3 fixedly connected to the top of the fixing frame 2, a motor 4 fixedly connected to the bottom of the output end of the cylinder 3 through the fixing frame 2, an air inlet pipe 5 fixedly connected to the bottom of the output end of the motor 4, an air delivery hole 6 opened on the surface of the air inlet pipe 5, a hollow drill bit 7 fixedly connected to the bottom of the inner cavity of the air inlet pipe 5, a fixing cover 8 sleeved on the surface of the air inlet pipe 5, both sides of the fixing cover 8 being fixedly connected to the motor 4 through mounting brackets 9, a baffle 10 fixedly connected to the surface of the base 1, a filter exhaust assembly 11 fixedly connected to the rear side of the baffle 10, a hose 12 connected to the air outlet of the filter exhaust assembly 11, and the front end of the hose 12 connected to the fixing cover 8.

[0024] The mounting bracket 2 facilitates the installation and fixation of the cylinder 3. The cylinder 3 controls the operating height of the motor 4, and the motor 4 controls the rotation of the air inlet pipe 5 and the hollow drill bit 7. The mounting cover 8 and the mounting bracket 9 can block the air delivery hole 6 on the surface of the air inlet pipe 5. The hose 12 is used to deliver the air filtered by the filter exhaust assembly 11 to the inside of the mounting cover 8. The airflow enters the hollow drill bit 7 through the air delivery hole 6. When the hollow drill bit 7 is opened to process the air hole of the tire mold, the continuous airflow can not only cool the hollow drill bit 7 and the air hole, but also discharge the waste chips from the air hole, avoiding the accumulation of waste chips in the drill groove, which can cause the drill bit to jam, the hole diameter error, and the tool life to be shortened.

[0025] like Figure 2 and Figure 4 As shown, the filter exhaust assembly 11 includes a filter box 111. The front of the filter box 111 is fixedly connected to the baffle 10. Filter elements 112 are fixedly connected between the two sides of the inner cavity of the filter box 111. Both sides of the baffle 10 are connected to air inlet shells 113. The top of the air inlet shell 113 is connected to a conveying pipe 114. The end of the conveying pipe 114 away from the air inlet shell 113 is connected to the filter box 111. A cleaning mechanism 117 is fixedly connected to the bottom of the inner cavity of the filter box 111. The top of the filter box 111... A fan 115 is fixedly connected. The air inlet on the left side of the fan 115 is connected to the filter box 111, and the air outlet on the right side of the fan 115 is connected to the hose 12. The cleaning mechanism 117 includes an electric push rod 1171. A toothed plate 1172 is fixedly connected to the right side of the output end of the electric push rod 1171. A gear 1173 is meshed on the top of the toothed plate 1172. Flexible scrapers 1174 are fixedly connected to both sides of the top of the gear 1173. The front side of the gear 1173 is movably connected to the inner wall of the filter box 111.

[0026] The filter element 112 is used to filter metal dust and debris in the air. The air inlet shell 113 can cooperate with the baffle 10 to transport the debris and metal dust generated during the air hole processing to the inside of the filter box 111. The conveying pipe 114 is used to transport metal dust and air. The cleaning mechanism 117 can clean the bottom of the filter element 112 to prevent metal dust and dirt from clogging the filter element 112. The fan 115 is used to transport the filtered air to the inside of the fixed cover 8 through the hose 12. The electric push rod 1171 can control the toothed plate 1172 to move back and forth. The toothed plate 1172 can cooperate with the gear 1173 to control the flexible scraper 1174 to swing continuously. The flexible scraper 1174 continuously cleans the bottom of the filter element 112 to prevent dust and metal dust from clogging the filter element 112 and enable it to continuously perform filtration.

[0027] like Figure 2 , Figure 4 and Figure 5 As shown, the front and rear sides of the toothed plate 1172 are fixedly connected to the sliding sleeves, the inner wall of the sliding sleeves is slidably connected to the sliding rods, both sides of the sliding rods are fixedly connected to the inner wall of the filter box 111, the rear side of the filter box 111 is provided with a cleaning baffle, the front side of the cleaning baffle is fixedly connected to the filter box 111 by bolts, and the bottom of the air inlet shell 113 is provided with a block 116, the top of the block 116 penetrates into the inner cavity of the air inlet shell 113.

[0028] By setting the sliding sleeve and sliding rod, the toothed plate 1172 can be limited to move stably left and right, preventing displacement during movement. The cleaning baffle facilitates the cleaning of dust and debris inside the filter box 111 by the staff. The block 116 can seal the bottom opening of the air inlet shell 113. When it is necessary to clean the debris inside the air inlet shell 113, the block 116 can be removed to facilitate the discharge of debris from the air inlet shell 113.

[0029] like Figure 1 and Figure 3 As shown, the inner wall of the air intake pipe 5 is provided with threads for use with the hollow drill bit 7. The surface of the hollow drill bit 7 is fixedly connected to the air intake pipe 5 by the threads. The inner wall of the fixing cover 8 is movably connected to the surface of the air intake pipe 5 by the bearing. The top of the base 1 is provided with a T-slot for the fixing fixture.

[0030] The threaded inner wall of the air intake pipe 5 facilitates the installation and fixation of the hollow drill bit 7. The threaded hollow drill bit 7 is easy to disassemble and assemble. The bearing can increase the stability of the air intake pipe 5 during rotation. The T-slot facilitates the installation of the fixture used for tire molds on the top of the base 1.

[0031] The working principle of the air hole drill for tire molds of this utility model is as follows: The tire mold is fixed to the top of the base 1 by a clamp. The cylinder 3 is turned on, and the motor 4 driven by the cylinder 3 moves downward to a preset position on the surface of the tire mold. Then, the motor 4 is started, which drives the air inlet pipe 5 and the hollow drill bit 7 to rotate at high speed and perform air hole processing. At the same time, the blower 115 is started, and the filtered airflow is delivered to the inner cavity of the fixed cover 8 through the filter exhaust assembly 11 via the hose 12. The airflow enters the interior of the hollow drill bit 7 through the air delivery hole 6 on the surface of the air inlet pipe 5. The high-pressure airflow is ejected from the front end of the hollow drill bit 7. The high-speed airflow blows the metal chips generated by cutting out from the inner wall of the air hole along the spiral pattern on the surface of the drill bit. This not only cools the hollow drill bit 7 and the air hole, but also discharges the waste chips from the air hole. To prevent waste chips from accumulating in the drill bit grooves, which could cause drill bit jamming, hole diameter errors, and shortened tool life, the chips generated during pore processing are carried by the airflow into the baffle 10 and then guided into the filter box 111 through the air inlet shells 113 on both sides and the conveying pipe 114. The filter element 112 filters the chip-laden airflow, intercepting metal dust and larger chips. Subsequently, the electric push rod 1171 of the cleaning mechanism 117 periodically pushes the toothed plate 1172 to move left and right, which drives the flexible scrapers 1174 on both sides to swing through the gear 1173, scraping off the deposits attached to the bottom of the filter element 112. The filtered clean airflow is then pumped back into the hose 12 by the fan 115 to form a circulation. Through airflow circulation and automatic chip cleaning, the continuity and stability of the pore processing process are achieved, effectively solving the problems of poor chip removal and frequent shutdowns of traditional drill bits.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pore drill for tire molds, characterized in that: The device includes a base (1), a fixed frame (2) is fixedly connected to the rear side of the base (1), a cylinder (3) is fixedly connected to the top of the fixed frame (2), a motor (4) is fixedly connected to the bottom of the output end of the cylinder (3) through the fixed frame (2), an air inlet pipe (5) is fixedly connected to the bottom of the output end of the motor (4), an air supply hole (6) is opened on the surface of the air inlet pipe (5), a hollow drill bit (7) is fixedly connected to the bottom of the inner cavity of the air inlet pipe (5), a fixed cover (8) is fitted on the surface of the air inlet pipe (5), both sides of the fixed cover (8) are fixedly connected to the motor (4) through mounting brackets (9), a baffle (10) is fixedly connected to the surface of the base (1), a filter exhaust assembly (11) is fixedly connected to the rear side of the baffle (10), a hose (12) is connected to the outlet of the filter exhaust assembly (11), and the front end of the hose (12) is connected to the fixed cover (8).

2. The air hole drill for tire molds as described in claim 1, characterized in that: The filter exhaust assembly (11) includes a filter box (111), the front side of which is fixedly connected to a baffle (10), a filter element (112) is fixedly connected between the two sides of the inner cavity of the filter box (111), an air inlet shell (113) is connected to both sides of the baffle (10), a conveying pipe (114) is connected to the top of the air inlet shell (113), the end of the conveying pipe (114) away from the air inlet shell (113) is connected to the filter box (111), a cleaning mechanism (117) is fixedly connected to the bottom of the inner cavity of the filter box (111), a fan (115) is fixedly connected to the top of the filter box (111), the air inlet on the left side of the fan (115) is connected to the filter box (111), and the air outlet on the right side of the fan (115) is connected to the hose (12).

3. The air hole drill for tire molds as described in claim 2, characterized in that: The cleaning mechanism (117) includes an electric push rod (1171), a toothed plate (1172) is fixedly connected to the right side of the output end of the electric push rod (1171), a gear (1173) is meshed on the top of the toothed plate (1172), and flexible scrapers (1174) are fixedly connected to both sides of the top of the gear (1173). The front side of the gear (1173) is movably connected to the inner wall of the filter box (111).

4. The air hole drill for tire molds as described in claim 3, characterized in that: The toothed plate (1172) is fixedly connected to the front and rear sides with sliding sleeves, and the inner wall of the sliding sleeve is slidably connected with a sliding rod. Both sides of the sliding rod are fixedly connected to the inner wall of the filter box (111).

5. A pore drill for tire molds as described in claim 2, characterized in that: A cleaning baffle is provided on the rear side of the filter box (111), and the front side of the cleaning baffle is fixedly connected to the filter box (111) by bolts. A block (116) is provided at the bottom of the air inlet shell (113), and the top of the block (116) extends through to the inner cavity of the air inlet shell (113).

6. The air hole drill for tire molds as described in claim 1, characterized in that: The inner wall of the air intake pipe (5) is provided with threads for use with the hollow drill bit (7), and the surface of the hollow drill bit (7) is fixedly connected to the air intake pipe (5) by the threads.

7. A pore drill for tire molds as described in claim 1, characterized in that: The inner wall of the fixed cover (8) is movably connected to the surface of the air inlet pipe (5) through a bearing, and the top of the base (1) is provided with a T-shaped groove for a fixing clamp.

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