A sandblasting and grinding machine for rubber roller shaft core

Abstract

The present invention relates to the technical field of rubber roller shaft processing, and specifically to an integrated sandblasting and grinding machine for rubber roller shaft cores, which solves the problems that when sandblasting and grinding the rubber roller shaft cores in the prior art, the sandblasting and grinding processing cannot be carried out while the transmission of the rubber roller shaft cores is uninterrupted, the processing efficiency is low, and it is not convenient to centrally process the waste residue and smoke generated during the sandblasting and grinding process. An integrated sandblasting and grinding machine for rubber roller shaft cores includes a supporting slag removal mechanism, a protective driving mechanism, and a rotating positioning mechanism. The upper end of the supporting slag removal mechanism is equipped with a protective driving mechanism, and a rotating positioning mechanism is installed between the supporting slag removal mechanism and the protective driving mechanism. The present invention can perform sufficient sandblasting and grinding processing while the transmission is uninterrupted by performing orbital and self-rotation on multiple rubber roller shaft cores, thereby improving the processing efficiency, and facilitating the collection of waste residue and smoke generated during the processing process to avoid endangering the health of personnel.

Description

Technical Field

[0001] The invention relates to the technical field of rubber roller shaft processing, in particular to a sandblasting and grinding integrated machine for a rubber roller shaft core. Background Art

[0002] The treatment of the steel core before rubber roller coating is an important link in the production process of rubber rollers. Usually, the core of the rubber roller needs to be sandblasted and polished in sequence. How to simplify the operation process, reduce costs and ensure quality is the most basic process in rubber roller production, which involves key quality characteristics such as adhesive layer adhesion and center of gravity stability. Due to the impact and cutting action of the abrasive on the workpiece surface, the surface of the workpiece obtains a certain degree of cleanliness and different roughness, which increases the adhesion between the rubber roller core and the coating and extends the durability of the coating. By polishing the rubber roller core after sandblasting, the rubber coating effect of the rubber roller core can be further improved.

[0003] The existing sandblasting and grinding of the rubber roller shaft core cannot maintain the sandblasting and grinding process under the condition of uninterrupted transmission, the processing efficiency is low, and it is not convenient to centrally treat the waste residue and smoke generated in the sandblasting and grinding process; therefore, it does not meet the existing needs. In this regard, we propose an all-in-one sandblasting and grinding machine for the rubber roller shaft core. Summary of the invention

[0004] The object of the present invention is to provide an all-in-one sandblasting and grinding machine for a rubber roller shaft core, so as to solve the problems raised in the above background technology that during the existing sandblasting and grinding of the rubber roller shaft core, the sandblasting and grinding treatment cannot be maintained under the condition of uninterrupted transmission, the treatment efficiency is low, and it is not convenient to centrally treat the waste residue and smoke generated during the sandblasting and grinding process.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sandblasting and grinding integrated machine for a rubber roller shaft core, comprising a supporting slag discharge mechanism, a protective driving mechanism and a rotating positioning mechanism, wherein the upper end of the supporting slag discharge mechanism is provided with a protective driving mechanism, a rotating positioning mechanism is provided between the supporting slag discharge mechanism and the protective driving mechanism, a sandblasting mechanism is provided on one side of the rotating positioning mechanism, and a plurality of grinding mechanisms are provided at the rear end of the rotating positioning mechanism;

[0006] The supporting slag discharge mechanism comprises a supporting base, a first transmission motor is fixedly mounted in the middle of the lower end surface of the supporting base, a first transmission screw is fixedly mounted at the output end of the first transmission motor, and a guide lifting seat is mounted on the outer side of the middle of the first transmission screw;

[0007] The rotary positioning mechanism includes a rotating disk, which is rotatably connected to the upper end of the guide lifting seat, an annular angle plate is fixedly installed on the upper end surface of the rotating disk, and a plurality of self-rotating seats are rotatably connected to the inner side of the annular angle plate, a limiting sleeve is installed on the inner side of the bottom end of the self-rotating seat, and a movable connecting column is slidably connected to the inner side of the limiting sleeve, and a positioning cover is installed on the bottom end of the limiting sleeve, and a partition transmission cover is installed on the lower end surface of the rotating disk located on the outer side of the guide lifting seat, and a plurality of shaft core positioning base plates are installed on the side of the bottom end of the partition transmission cover, and a movable limiting connecting rod is movably installed on the inner side of the shaft core positioning base plate, and the bottom end of the movable limiting connecting rod is rotatably connected to a supporting bent rod, and a plurality of inclined scrapers are fixedly installed on the lower end surface of the partition transmission cover.

[0008] Preferably, the support slag discharge mechanism also includes a guide sealing ring fixedly connected to the inner side of the bottom end of the support base, a plurality of conical slag collecting seats are installed between the guide sealing ring and the support base, and a smoke collecting frame is installed on the inner side of the guide sealing ring.

[0009] Preferably, the protective drive mechanism includes a protective upper cover, which is slidably connected to the supporting base, a discharge port is provided on one side of the protective upper cover, a loading port is provided on the front end face of the protective upper cover, a movable annular cover is fixedly installed on the upper end face of the protective upper cover, a motor mounting seat is fixedly installed on the middle part of the movable annular cover, a second transmission motor is fixedly installed on the inner side of the bottom end of the motor mounting seat, a limiting ring is fixedly installed on the inner wall of the protective upper cover, and a transmission gear ring is fixedly installed on the inner side of the limiting ring.

[0010] Preferably, the sandblasting mechanism includes an input diverter seat, which is fixedly connected to the protective upper cover, and a plurality of sand conveying pipes are fixedly installed on the lower end surface of the input diverter seat, and a plurality of sand conveying pipes are provided on one side of each of the sand conveying pipes. The input diverter seat is connected to the plurality of sand conveying heads through sand conveying pipes, and the plurality of sand conveying pipes are uniformly arranged circumferentially relative to the axis of the first transmission screw, and the plurality of sand blasting heads are uniformly arranged vertically along the axis of the sand conveying pipe.

[0011] Preferably, the grinding mechanism includes a grinding mounting seat, which is fixedly connected to the protective upper cover, a third transmission motor is fixedly mounted on the inner side of the upper end of the grinding mounting seat, a second transmission screw is fixedly mounted on the output end of the third transmission motor, a transmission block is mounted on the outer side of the second transmission screw, a fourth transmission motor is fixedly mounted on one end of the transmission block, and a grinding disc is fixedly mounted on the output end of the fourth transmission motor.

[0012] Preferably, the first transmission screw is connected to the guide lifting seat by a threaded connection, the guide sealing ring and the smoke collecting frame are both rotatably connected to the partition transmission cover, a fan is provided on the inner side of the upper end of the smoke collecting frame, the conical slag collecting seat and the smoke collecting frame are both fixedly connected to the support base, a processing bin is formed between the support base, the guide sealing ring and the rotating disk, the conical slag collecting seat is through-connected with the processing bin, the inner wall of the partition transmission cover is provided with a plurality of guide holes, and the smoke collecting frame is through-connected with the processing bin through the plurality of guide holes.

[0013] Preferably, the output end of the second transmission motor passes through the motor mounting seat and is fixedly connected to the middle of the rotating disk, the side of the rotating disk is inserted into the inner side of the protective upper cover and the limiting ring and is rotatably connected to the protective upper cover and the limiting ring, the bottom end of the rotating seat passes through the annular angle plate and the rotating disk in sequence, and a gear is fixedly provided on the outer side of the upper end of the rotating seat at the lower end surface of the annular angle plate, and the transmission ring gear is connected to a plurality of gears through tooth meshing.

[0014] Preferably, the rotating seat is rotatably connected to the rotating disk, the bottom end of the rotating seat is threadedly connected to the limiting sleeve, the upper end of the movable connecting column passes through the limiting sleeve and is connected to the rotating seat by a spring, and the movable connecting column is fixedly connected to the positioning cover.

[0015] Preferably, the partition transmission cover is fixedly connected to the supporting bent rod, a spring is provided between the movable limiting link and the supporting bent rod, the upper and lower ends of the spring are fixedly connected to the movable limiting link and the supporting bent rod, and a rubber roller shaft core is provided between the shaft core positioning base plate and the positioning cover.

[0016] Preferably, the second transmission screw is connected to the transmission block via a thread, the transmission block vertically reciprocates relative to the axis of the second transmission screw, and the plurality of grinding discs are evenly arranged in a circle relative to the axis of the first transmission screw.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides springs between the movable limit connecting rod and the supporting bent rod and between the movable connecting column and the self-rotating seat, so that the positioning cover can rotate relative to the supporting bent rod through the movable connecting column and the movable limit connecting rod to facilitate the rapid loading of the rubber roller shaft core. At the same time, the positioning cover and the shaft core positioning bottom plate can position the upper and lower ends of the rubber roller shaft core through the support of the two springs, and the bottom end of the rubber roller shaft core can be limited by the movable limit connecting rod to maintain the vertical stability of the rubber roller shaft core;

[0019] 2. The present invention drives the plurality of rubber roller shaft cores to revolve through the second transmission motor via the rotary positioning mechanism, and the transmission gear ring drives the rotation seat to rotate relative to the rotating disk via the gear, thereby realizing the synchronous revolving and rotating operations of the plurality of rubber roller shaft cores, and the rubber roller shaft cores can be uniformly sandblasted via the plurality of sandblasting heads, the fourth transmission motor drives the grinding disk to rotate, and the third transmission motor drives the fourth transmission motor to perform vertical reciprocating sliding via the second transmission screw and the transmission block, thereby the plurality of grinding disks uniformly arranged in a circle relative to the axis of the first transmission screw can fully grind the rubber roller shaft core, thereby realizing the uninterrupted surface treatment operation of the rubber roller shaft core, and effectively improving the treatment efficiency;

[0020] 3. The present invention provides a fan on the inner side of the smoke and dust collecting frame, and at the same time, the partition transmission cover drives the oblique scraper to scrape the inner wall of the bottom end of the support base in a clockwise direction, so that the smoke and dust generated in the sandblasting process can be centrally extracted through the smoke and dust collecting frame, and negative pressure is formed on the inner side of the support base to prevent the smoke and dust from overflowing from the upper and lower material ports. The waste slag generated in the sandblasting process can be collected and discharged through the conical slag collecting seat, effectively avoiding harm to personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic cross-sectional structure diagram of the present invention as a whole;

[0023] Figure 3 It is a schematic diagram of the installation structure of the rotary positioning mechanism of the present invention;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of the protection drive mechanism of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the rotary positioning mechanism of the present invention;

[0026] Figure 6 It is a schematic diagram of the installation structure of the grinding mechanism of the present invention;

[0027] Figure 7 For the present invention Figure 4 Schematic diagram of the enlarged structure of the A area in the middle;

[0028] Figure 8 It is a schematic diagram of the installation structure of the transmission gear ring of the present invention;

[0029] Fig. 9 A bottom view of the separated transmission cover of the present invention;

[0030] Fig.10 For the present invention Figure 4Schematic diagram of the enlarged structure of area B in the middle.

[0031] In the figure: 1. Supporting and discharging slag mechanism; 101. Supporting base; 102. Conical slag collecting seat; 103. First transmission motor; 104. First transmission screw; 105. Guide lifting seat; 106. Smoke and dust collecting frame; 107. Guide sealing ring; 2. Protective driving mechanism; 201. Protective upper cover; 202. Movable annular cover; 203. Feeding port; 204. Feeding port; 205. Motor mounting seat; 206. Second transmission motor; 207. Limiting ring; 208. Transmission gear ring; 3. Rotation positioning mechanism; 301. Rotating disk; 302. Ring shaped angle plate; 303, partition transmission cover; 304, rotation seat; 305, shaft core positioning base plate; 306, inclined scraper; 307, movable connecting column; 308, positioning cover; 309, limiting sleeve; 310, movable limiting connecting rod; 311, supporting bent rod; 4, sandblasting mechanism; 401, input diverter seat; 402, sand conveying pipe; 403, sandblasting head; 5, grinding mechanism; 501, grinding mounting seat; 502, third transmission motor; 503, transmission block; 504, fourth transmission motor; 505, second transmission screw; 506, grinding disc. DETAILED DESCRIPTION

[0032] 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.

[0033] The first transmission motor 103 (model YS7134), the second transmission motor 206 (model YS7134), the third transmission motor 502 (model GV50-3.7KW-60-S) and the fourth transmission motor 504 (model KOM7080) mentioned in the present invention can all be purchased from the market or obtained through private customization.

[0034] See also Figures 1 to 4An embodiment of the present invention is as follows: a sandblasting and grinding machine for a rubber roller shaft core, comprising a supporting slag removal mechanism 1, a protective driving mechanism 2 and a rotating positioning mechanism 3, wherein the supporting slag removal mechanism 1 comprises a supporting base 101, a first transmission motor 103 is fixedly installed in the middle of the lower end surface of the supporting base 101, a first transmission screw 104 is fixedly installed at the output end of the first transmission motor 103, a guide jacking seat 105 is installed on the outer side of the middle of the first transmission screw 104, the first transmission screw 104 is connected to the guide jacking seat 105 by threads, and the supporting base 101 A guide sealing ring 107 is fixedly connected to the inner side of the bottom, and a plurality of conical slag collecting seats 102 are installed between the guide sealing ring 107 and the support base 101. A smoke dust collecting rack 106 is installed on the inner side of the guide sealing ring 107. A fan is provided on the inner side of the upper end of the smoke dust collecting rack 106. The conical slag collecting seat 102 and the smoke dust collecting rack 106 are both fixedly connected to the support base 101. The smoke dust generated during the sandblasting process can be centrally extracted through the smoke dust collecting rack 106, and the waste slag generated during the sandblasting process can be collected and discharged through the conical slag collecting seat 102.

[0035] See also Figures 2 to 10 A protective driving mechanism 2 is installed at the upper end of the supporting slag discharge mechanism 1, and a rotating positioning mechanism 3 is installed between the supporting slag discharge mechanism 1 and the protective driving mechanism 2. The rotating positioning mechanism 3 includes a rotating disk 301, and the rotating disk 301 is rotatably connected to the upper end of the guide lifting seat 105. An annular angle plate 302 is fixedly installed on the upper end surface of the rotating disk 301, and a plurality of self-rotating seats 304 are rotatably connected to the inner side of the annular angle plate 302. The bottom end of the self-rotating seat 304 passes through the annular angle plate 302 and the rotating disk 301 in sequence. A limiting sleeve 309 is installed on the inner side of the bottom end of the self-rotating seat 304. The inner side of the sleeve 309 is slidably connected with a movable connecting column 307, and the bottom end of the limiting sleeve 309 is installed with a positioning cover 308. The self-rotating seat 304 is rotatably connected with the rotating disk 301, and the bottom end of the self-rotating seat 304 is connected with the limiting sleeve 309 by a thread. The upper end of the movable connecting column 307 passes through the limiting sleeve 309 and is connected with the self-rotating seat 304 by a spring. The movable connecting column 307 is fixedly connected with the positioning cover 308, so that the rotating disk 301 and the self-rotating seat 304 synchronously drive the multiple rubber roller shaft cores to rotate clockwise relative to the axis of the first transmission screw 104;

[0036] The lower end surface of the rotating disk 301 is located outside the guide lifting seat 105, and a separation transmission cover 303 is installed. The guide sealing ring 107 and the smoke collection frame 106 are both rotatably connected to the separation transmission cover 303. A processing chamber is formed between the support base 101, the guide sealing ring 107 and the rotating disk 301. The conical slag collecting seat 102 is connected to the processing chamber. The inner wall of the separation transmission cover 303 is provided with a plurality of guide holes. The smoke collection frame 106 is connected to the processing chamber through a plurality of guide holes, which can centrally extract the smoke generated during the sandblasting process and form a negative pressure on the inner side of the support base 101 to prevent smoke from overflowing.

[0037] A plurality of shaft core positioning base plates 305 are installed on the side of the bottom end of the partition transmission cover 303, and a movable limiting link 310 is movably installed on the inner side of the shaft core positioning base plate 305, and the bottom end of the movable limiting link 310 is rotatably connected to a supporting bent rod 311, and a plurality of oblique scrapers 306 are fixedly installed on the lower end surface of the partition transmission cover 303, and the partition transmission cover 303 is fixedly connected to the supporting bent rod 311, and a spring is provided between the movable limiting link 310 and the supporting bent rod 311, and the upper and lower ends of the spring are fixedly connected to the movable limiting link 310 and the supporting bent rod 311, and a rubber roller shaft core is provided between the shaft core positioning base plate 305 and the positioning cover 308, and the bottom end of the rubber roller shaft core can be limited by the movable limiting link 310 to maintain the vertical stability of the rubber roller shaft core.

[0038] See also Figures 1 to 7 The protection driving mechanism 2 includes a protection upper cover 201, which is slidably connected to the support base 101. A feeding port 204 is provided on one side of the protection upper cover 201, and a feeding port 203 is provided on the front end surface of the protection upper cover 201. A movable annular cover 202 is fixedly installed on the upper end surface of the protection upper cover 201, and a motor mounting seat 205 is fixedly installed in the middle of the movable annular cover 202. A second transmission motor 206 is fixedly installed on the inner side of the bottom end of the motor mounting seat 205, and a limiting ring 207 is fixedly installed on the inner wall of the protection upper cover 201, so that the second transmission motor 206 drives the multiple rubber roller shaft cores to revolve through the rotation positioning mechanism 3 under the support of the motor mounting seat 205;

[0039] The output end of the second transmission motor 206 passes through the motor mounting seat 205 and is fixedly connected to the middle of the rotating disk 301. The side of the rotating disk 301 is inserted into the inner side of the protective upper cover 201 and the limiting ring 207 and is rotatably connected to the protective upper cover 201 and the limiting ring 207. A transmission gear ring 208 is fixedly installed on the inner side of the limiting ring 207. A gear is fixedly provided on the outer side of the upper end of the rotating seat 304, and a gear is fixedly provided on the lower end surface of the annular angle plate 302. The transmission gear ring 208 is connected to multiple gears through tooth meshing. The transmission gear ring 208 drives the rotating seat 304 to rotate relative to the rotating disk 301 through gears.

[0040] See also Figure 2 and Figure 6 A sandblasting mechanism 4 is installed on one side of the rotating positioning mechanism 3, and the sandblasting mechanism 4 includes an input diverter seat 401, and the input diverter seat 401 is fixedly connected to the protective upper cover 201. A plurality of sand conveying pipes 402 are fixedly installed on the lower end surface of the input diverter seat 401, and a plurality of sand blasting heads 403 are provided on one side of each sand conveying pipe 402. The input diverter seat 401 is connected with the plurality of sand blasting heads 403 through the sand conveying pipe 402. The plurality of sand conveying pipes 402 are uniformly arranged in a circle relative to the axis of the first transmission screw 104, and the plurality of sand blasting heads 403 are uniformly arranged vertically along the axis of the sand conveying pipe 402, so that the rubber roller shaft core can be uniformly sandblasted by the plurality of sand blasting heads 403.

[0041] See also Figures 4 to 6 A plurality of grinding mechanisms 5 are installed at the rear end of the rotation positioning mechanism 3. The grinding mechanism 5 includes a grinding mounting seat 501, which is fixedly connected to the protective upper cover 201. A third transmission motor 502 is fixedly installed on the inner side of the upper end of the grinding mounting seat 501. A second transmission screw 505 is fixedly installed on the output end of the third transmission motor 502. A transmission block 503 is installed on the outer side of the second transmission screw 505. A fourth transmission motor 504 is fixedly installed at one end of the transmission block 503. A grinding disc 506 is fixedly installed at the output end of the machine 504, the second transmission screw 505 is connected to the transmission block 503 by a thread, the transmission block 503 slides vertically back and forth relative to the axis of the second transmission screw 505, and multiple grinding discs 506 are evenly arranged in a circle relative to the axis of the first transmission screw 104, so that the third transmission motor 502 drives the rotating grinding disc 506 to slide vertically back and forth through the second transmission screw 505 and the transmission block 503, thereby fully grinding the core of the rubber roller.

[0042] In summary, the power supply is turned on and the first transmission motor 103 is started, so that the first transmission motor 103 drives the guide lifting seat 105 to adjust vertically through the first transmission screw 104 under the support of the support base 101, and then the guide lifting seat 105 drives the separation transmission cover 303 and the self-rotating seat 304 to adjust the height synchronously through the rotating disk 301, and the side of the rotating disk 301 is inserted between the protective upper cover 201 and the limit ring 207, so that the protective driving mechanism 2, the sandblasting mechanism 4 and the grinding mechanism 5 can be driven by the rotating disk 301 to adjust the height relatively. It slides vertically on the support base 101 to adjust the installation height of the rubber roller shaft core, and the rubber roller shaft core to be processed is placed between the positioning cover 308 and the shaft core positioning base plate 305 through the loading port 203. Springs are provided between the movable limiting link 310 and the supporting bent rod 311 and between the movable connecting column 307 and the rotating seat 304, so that the positioning cover 308 rotates relative to the supporting bent rod 311 through the movable connecting column 307 and the movable limiting link 310 to compress the two springs, which is convenient for rapid loading of the rubber roller shaft core.

[0043] At the same time, the positioning cover 308 and the shaft core positioning bottom plate 305 can position the upper and lower ends of the rubber roller shaft core through the support of the two springs, and the bottom end of the rubber roller shaft core can be limited by the movable limiting link 310 to maintain the vertical stability of the rubber roller shaft core, and the second transmission motor 206 is started, so that the second transmission motor 206 drives the multiple rubber roller shaft cores to rotate clockwise relative to the axis of the first transmission screw 104 through the rotation positioning mechanism 3 under the support of the motor mounting seat 205. At the same time, a gear is fixed on the outer side of the upper end of the rotation seat 304, so that when the rotation seat 304 drives the gear to rotate, the transmission gear ring 208 drives the rotation seat 304 to rotate relative to the rotating disk 301 through the gear, thereby realizing the synchronous revolution and rotation of the multiple rubber roller shaft cores;

[0044] When the rubber roller shaft core moves to the input diverter seat 401, the input diverter seat 401 is connected with the sandblasting head 403 through the sand conveying pipe 402, and the multiple sand conveying pipes 402 are evenly arranged circumferentially relative to the axis of the first transmission screw 104, and the multiple sandblasting heads 403 are evenly arranged vertically along the axis of the sand conveying pipe 402, so that the rubber roller shaft core can be evenly sandblasted by the multiple sandblasting heads 403. When the rubber roller shaft core moves to the multiple grinding mechanisms 5, the fourth transmission motor 504 drives the grinding disc 506 to rotate under the support of the transmission block 503. At the same time, the third transmission motor 502 drives the fourth transmission motor 504 to slide vertically reciprocatingly through the second transmission screw 505 and the transmission block 503 under the support of the grinding mounting seat 501, so that the multiple grinding discs 506 evenly arranged circumferentially relative to the axis of the first transmission screw 104 can fully grind the rubber roller shaft core;

[0045] Then, the material is discharged through the discharge port 204 to realize uninterrupted processing operation on the surface of the rubber roller shaft core. A fan is provided on the inner side of the smoke dust collecting frame 106. At the same time, the partition transmission cover 303 drives the inclined scraper 306 to scrape the inner wall of the bottom end of the support base 101 in a clockwise direction. Then, the smoke dust generated in the sandblasting process can be centrally extracted through the smoke dust collecting frame 106, and negative pressure is formed on the inner side of the support base 101 to prevent the smoke dust from overflowing from the upper and lower material ports 203 and 204. The waste slag generated in the sandblasting process can be collected and discharged through the conical slag collecting seat 102.

[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A sandblasting and grinding machine for a rubber roller shaft core, comprising a supporting and slag removal mechanism (1), a protective drive mechanism (2) and a rotation positioning mechanism (3), characterized in that: A protective driving mechanism (2) is installed at the upper end of the supporting slag discharge mechanism (1), a rotating positioning mechanism (3) is installed between the supporting slag discharge mechanism (1) and the protective driving mechanism (2), a sandblasting mechanism (4) is installed on one side of the rotating positioning mechanism (3), and a plurality of grinding mechanisms (5) are installed at the rear end of the rotating positioning mechanism (3); The supporting slag discharge mechanism (1) comprises a supporting base (101), a first transmission motor (103) is fixedly mounted in the middle of the lower end surface of the supporting base (101), a first transmission screw (104) is fixedly mounted at the output end of the first transmission motor (103), and a guide lifting seat (105) is mounted on the outer side of the middle of the first transmission screw (104); The rotary positioning mechanism (3) comprises a rotary disk (301), the rotary disk (301) being rotatably connected to the upper end of the guide lifting seat (105), an annular angle plate (302) being fixedly mounted on the upper end surface of the rotary disk (301), a plurality of self-rotating seats (304) being rotatably connected to the inner side of the annular angle plate (302), a limiting sleeve (309) being mounted on the inner side of the bottom end of the self-rotating seat (304), a movable connecting column (307) being slidably connected to the inner side of the limiting sleeve (309), and a movable connecting column (307) being mounted on the bottom end of the limiting sleeve (309). A positioning cover (308) is provided, the lower end surface of the rotating disk (301) is located outside the guide lifting seat (105) and is equipped with a separation transmission cover (303), the side edge of the bottom end of the separation transmission cover (303) is equipped with a plurality of shaft core positioning bottom plates (305), the inner side of the shaft core positioning bottom plate (305) is movably equipped with a movable limiting connecting rod (310), the bottom end of the movable limiting connecting rod (310) is rotatably connected to a supporting bent rod (311), and the lower end surface of the separation transmission cover (303) is fixedly equipped with a plurality of oblique scrapers (306); The grinding mechanism (5) comprises a grinding mounting seat (501), the grinding mounting seat (501) is fixedly connected to the protective upper cover (201), a third transmission motor (502) is fixedly mounted on the inner side of the upper end of the grinding mounting seat (501), a second transmission screw (505) is fixedly mounted on the output end of the third transmission motor (502), a transmission block (503) is mounted on the outer side of the second transmission screw (505), a fourth transmission motor (504) is fixedly mounted on one end of the transmission block (503), and a grinding disc (506) is fixedly mounted on the output end of the fourth transmission motor (504); The second transmission screw (505) is connected to the transmission block (503) by a threaded connection, the transmission block (503) slides vertically back and forth relative to the axis of the second transmission screw (505), and the plurality of grinding discs (506) are evenly arranged in a circle relative to the axis of the first transmission screw (104); The first transmission screw (104) is connected to the guide lifting seat (105) by threading, the guide sealing ring (107) and the smoke collecting frame (106) are both rotatably connected to the partition transmission cover (303), a fan is provided on the inner side of the upper end of the smoke collecting frame (106), the conical slag collecting seat (102) and the smoke collecting frame (106) are both fixedly connected to the support base (101), a processing chamber is formed between the support base (101), the guide sealing ring (107) and the rotating disk (301), the conical slag collecting seat (102) is connected to the processing chamber through the conical slag collecting seat (102), the inner wall of the partition transmission cover (303) is provided with a plurality of guide holes, and the smoke collecting frame (106) is connected to the processing chamber through the plurality of guide holes; The partition transmission cover (303) drives the oblique scraper (306) to scrape the inner wall of the bottom end of the support base (101) in a clockwise direction, and then the smoke and dust generated during the sandblasting process can be centrally extracted through the smoke and dust collection frame (106), and negative pressure is formed on the inner side of the support base (101), thereby preventing the smoke and dust from overflowing from the upper material port (203) and the lower material port (204).

2. The sandblasting and grinding machine for a rubber roller shaft core according to claim 1, characterized in that: The supporting slag discharge mechanism (1) further comprises a guide sealing ring (107) fixedly connected to the inner side of the bottom end of the supporting base (101), a plurality of conical slag collecting seats (102) are installed between the guide sealing ring (107) and the supporting base (101), and a smoke collecting frame (106) is installed on the inner side of the guide sealing ring (107).

3. The sandblasting and grinding machine for the core of a rubber roller according to claim 2, characterized in that: The protective drive mechanism (2) comprises a protective upper cover (201), the protective upper cover (201) is slidably connected to the support base (101), a discharge port (204) is provided on one side of the protective upper cover (201), a feed port (203) is provided on the front end surface of the protective upper cover (201), a movable annular cover (202) is fixedly mounted on the upper end surface of the protective upper cover (201), a motor mounting seat (205) is fixedly mounted in the middle of the movable annular cover (202), a second transmission motor (206) is fixedly mounted on the inner side of the bottom end of the motor mounting seat (205), a limit ring (207) is fixedly mounted on the inner wall of the protective upper cover (201), and a transmission gear ring (208) is fixedly mounted on the inner side of the limit ring (207).

4. The sandblasting and grinding machine for the core of a rubber roller according to claim 3, characterized in that: The sandblasting mechanism (4) comprises an input diverter seat (401), the input diverter seat (401) is fixedly connected to the protective upper cover (201), a plurality of sand conveying pipes (402) are fixedly installed on the lower end surface of the input diverter seat (401), a plurality of sand conveying heads (403) are arranged on one side of each of the sand conveying pipes (402), the input diverter seat (401) and the plurality of sand blasting heads (403) are connected through the sand conveying pipes (402), the plurality of sand conveying pipes (402) are uniformly arranged in a circle relative to the axis of the first transmission screw (104), and the plurality of sand blasting heads (403) are uniformly arranged vertically along the axis of the sand conveying pipe (402).

5. The sandblasting and grinding machine for the core of a rubber roller according to claim 3, characterized in that: The output end of the second transmission motor (206) passes through the motor mounting seat (205) and is fixedly connected to the middle of the rotating disk (301); the side of the rotating disk (301) is plugged into the inner side of the protective upper cover (201) and the limiting ring (207) and is rotatably connected to the protective upper cover (201) and the limiting ring (207); the bottom end of the self-rotating seat (304) passes through the annular angle plate (302) and the rotating disk (301) in sequence; a gear is fixedly provided on the outer side of the upper end of the self-rotating seat (304) and located on the lower end surface of the annular angle plate (302); and the transmission gear ring (208) is connected to a plurality of gears through inter-tooth meshing.

6. The sandblasting and grinding integrated machine for the core of a rubber roller according to claim 1, characterized in that: The self-rotating seat (304) is rotatably connected to the rotating disk (301), the bottom end of the self-rotating seat (304) is connected to the limiting sleeve (309) by means of threads, the upper end of the movable connecting column (307) passes through the limiting sleeve (309) and is connected to the self-rotating seat (304) by means of a spring, and the movable connecting column (307) is fixedly connected to the positioning cover (308).

7. The sandblasting and grinding integrated machine for the core of a rubber roller according to claim 6, characterized in that: The partition transmission cover (303) is fixedly connected to the supporting bent rod (311), a spring is provided between the movable limit connecting rod (310) and the supporting bent rod (311), the upper and lower ends of the spring are fixedly connected to the movable limit connecting rod (310) and the supporting bent rod (311), and a rubber roller shaft core is provided between the shaft core positioning bottom plate (305) and the positioning cover (308).

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