Inner mold surface grinding device for mold preparation

Abstract

The invention relates to the technical field of mold machining, and provides an inner mold surface polishing device for mold preparation, which comprises a workbench, and the top of the workbench is fixedly connected with a U-shaped frame. According to the device, through downward movement of a round cover, a hollow pipe can be inserted into a round groove of a mold, a shielding piece is moved away from a round hole, an air pressure sensor transmits a signal to a controller, then the controller controls an exhaust fan to be started, the exhaust fan sucks air into a filter box, chippings in air are filtered through a filter plate, and the mold is cleaned; under the reset acting force of a second spring, a movable rod can slide downwards, a shielding piece returns to the original position, a round hole is shielded, the air pressure in a filtering box is reduced, then an exhaust fan is controlled to be turned off through a controller, in this way, self-cleaning of chippings can be achieved, manual cleaning is not needed, and therefore the mold grinding efficiency is improved; and the exhaust fan can be automatically turned off and turned on, so that electric energy is saved.

Description

Technical Field

[0001] The invention relates to the technical field of mold processing, and in particular to an inner mold surface grinding device for mold preparation. Background Art

[0002] Molds play a vital role in industrial production. They are tools used to make molded objects. Such tools are composed of various parts. Different molds are composed of different parts. Molds mainly realize the processing of the shape of objects by changing the physical state of the molded materials. They are known as the "mother of industry". They are widely used in blanking, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, and compression or injection molding of engineering plastics, rubber, ceramics and other products.

[0003] In the prior art, molds can produce products of various shapes, among which cylindrical products are more common and there are many types. In order to ensure that the cylindrical products produced are of appropriate size, the inner mold surface of the mold needs to be polished. However, during the polishing process of the mold, a lot of debris is easily generated, which requires manual cleaning by the staff, resulting in reduced efficiency of mold polishing. In addition, the mold may move during the polishing process, thereby affecting the polishing accuracy of the inner mold surface of the mold. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that molds can produce products of various shapes, among which cylindrical products are more common and there are more types. In order to ensure that the produced cylindrical products are of appropriate size, the inner mold surface of the mold needs to be polished. However, during the polishing process of the mold, a lot of debris is easily generated, which requires manual cleaning by the staff, thereby reducing the efficiency of mold polishing. In addition, the mold may move during the polishing process, thereby affecting the polishing accuracy of the inner mold surface of the mold.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an inner mold surface grinding device for mold preparation, comprising: a workbench, a U-shaped frame is fixedly connected to the top of the workbench, an electric telescopic rod is fixedly connected to the center of the top of the U-shaped frame, a displacement adjustment mechanism is arranged below the electric telescopic rod, the displacement adjustment mechanism comprises a U-shaped plate 1, the U-shaped plate 1 is fixedly connected to the electric telescopic rod, the opposite sides of the U-shaped plate 1 are fixedly connected to a guide plate, the bottom of the guide plate is fixedly connected to a pushing block, a matching force-bearing block is arranged below the pushing block, the opposite sides of the U-shaped frame close to the bottom are symmetrically and movably embedded with two sliding rods, the two sliding rods are symmetrically and fixedly connected to one side of the force-bearing block, and one end of the two sliding rods is fixedly connected to a clamping plate, A grinding mechanism is arranged below the displacement adjustment mechanism, and the grinding mechanism includes a circular cover, a hollow tube is fixedly connected to the eccentric part of the top of the circular cover, a movable rod is sealingly and slidably connected to the bottom of the hollow tube, a plurality of shielding plates are fixedly connected to one end of the movable rod in a circumferential array, a plurality of circular holes are opened in a circumferential array on the outer surface of the hollow tube close to the movable rod, a filter box is fixedly connected to the top of the circular cover, a connecting pipe is fixedly connected to one side of the filter box, the connecting pipe is fixedly connected to the hollow tube, an exhaust fan is fixedly connected to the other side of the filter box, the suction end of the exhaust fan extends to the interior of the filter box, an air pressure sensor is arranged inside the filter box, the circular cover is rotatably connected to a rotating rod 1 away from the top of the hollow tube, and a grinding roller is detachably and fixedly connected to one end of the rotating rod 1.

[0006] Preferably, a second spring is provided on the outer surface of the movable rod, and the second spring is fixedly connected to the movable rod and the hollow tube respectively. A ball is movably connected to the bottom of the movable rod, and an arc surface is provided on one side of the shielding sheet, and the arc surface of the shielding sheet is adapted to the inner wall of the hollow tube.

[0007] Preferably, a filter plate is provided inside the filter box, and the filter box, the connecting pipe, the hollow tube and the plurality of circular holes are connected.

[0008] Preferably, the displacement adjustment mechanism also includes a screw rod 1, which is rotatably connected to a U-shaped plate 1, and two guide rods 1 are symmetrically fixedly connected to the opposite side of the U-shaped plate 1, the outer surface of the screw rod 1 is threadedly connected to a U-shaped block 2, and the U-shaped block 2 is slidably connected to a guide rod 1, one side of the U-shaped plate 1 is fixedly connected to a motor 1, and the output end of the motor 1 is fixedly connected to one end of the screw rod 1.

[0009] Preferably, the opposite side of the U-shaped block 2 is rotatably connected to a screw rod 2, the opposite side of the U-shaped block 2 is symmetrically fixedly connected to two guide rods 2, the outer surface of the screw rod 2 is threadedly connected to a circular frame, the circular frame is slidably connected to the guide rod 2, one side of the U-shaped block 2 is fixedly connected to a motor 2, and the output end of the motor 2 is fixedly connected to one end of the screw rod 2.

[0010] Preferably, the grinding mechanism further comprises a circular shaft, the circular shaft is fixedly connected to the circular cover, the inner wall of the circular frame is fixedly connected to a motor three, and the output end of the motor three is fixedly connected to one end of the circular shaft.

[0011] Preferably, the other end of the rotating rod 1 is fixedly connected to gear 1, the bottom of the circular frame is fixedly connected to a gear sleeve, the gear sleeve is meshingly connected to gear 1, the round cover is rotatably connected to rotating rod 2 near the top of rotating rod 1, one end of rotating rod 2 is fixedly connected to gear 2, the gear 2 is meshingly connected to gear 1, and the other end of rotating rod 2 is fixedly connected to a fan blade.

[0012] Preferably, a rubber pad is fixedly connected to one side of the clamping plate, a slide groove is provided on the opposite side of the U-shaped frame, and the outer surface of the guide plate is slidably connected to the inside of the slide groove.

[0013] Preferably, a first slope is provided at the bottom of the pushing block, and a second slope is provided at the top of the force-bearing block.

[0014] Preferably, a spring 1 is provided on the outer surface of the slide rod, and the spring 1 is fixedly connected to the clamping plate and the U-shaped frame.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are:

[0016] 1. The present invention, through the downward movement of the round cover, will make the hollow tube inserted into the circular groove of the mold, make the ball contact with the inner wall of the bottom of the circular groove, make the movable rod slide into the inside of the hollow tube, make the shielding sheet move away from the position of the circular hole, and compress the spring 2 synchronously. At this time, the air pressure sensor inside the filter box detects that the air pressure has returned to a normal state, and the air pressure sensor will transmit a signal to the controller, and then the controller will control the exhaust fan to start, so that it can suck air into the inside of the filter box, so that the gas inside the circular groove of the mold passes through the circular hole, the hollow tube and the connecting tube in turn into the inside of the filter box, and the debris in the gas is filtered by the filter plate, and the debris is blown up by the fan blades, which can In order to speed up the cleaning of debris, when the electric telescopic rod is contracted, the displacement adjustment mechanism and the grinding mechanism will move upward, and the hollow tube will be disengaged from the circular groove of the mold at the same time. Under the reset force of spring 2, the movable rod can slide downward, so that the shielding piece returns to its original position and blocks the round hole. At this time, no gas enters the hollow tube, so that the air pressure inside the filter box is reduced. When it is reduced to a certain value, the air pressure sensor will transmit a signal to the controller, and then the controller will control the exhaust fan to turn off. This not only can realize self-cleaning of debris without manual cleaning, thereby improving the efficiency of mold grinding, but also can realize automatic closing and opening of the exhaust fan to save electricity.

[0017] 2. The present invention controls the start of the electric telescopic rod through a controller to extend it, driving the displacement adjustment mechanism and the grinding mechanism to move downward, and controls the center line of one of the circular grooves of the mold and the center line of the circular cover to be on the same vertical line through the displacement adjustment mechanism. When the circular cover contacts the surface of the mold, the grinding roller is just inserted into the inner surface of the mold, and the grinding roller contacts the side wall of the circular groove of the mold. Then the controller controls the start of motor three to drive the circular shaft to rotate, and synchronously drives the circular cover, rotating rod one and grinding roller to rotate around the center line of the circular shaft. Synchronously, through the meshing action of the gear sleeve and gear one, and under the cooperation of the fixed state of the gear sleeve, the gear one can be rotated in the opposite direction, synchronously driving the rotating rod one and the grinding roller to rotate in the opposite direction. Through the circular rotation and self-rotation of the grinding roller around the center line of the circular shaft, the side wall of the circular groove of the mold can be polished.

[0018] 3. The present invention can drive the rotation of gear 1 to drive the rotation of gear 2, and synchronously drive the rotation of rotating rod 2 and fan blades, so as to blow air to the inside of the circular groove of the mold through the fan blades. Since there is a certain gap between the round cover and the surface of the mold, external gas can enter the circular groove of the mold, which can not only dissipate the heat generated by the grinding of the mold, but also blow up the debris generated by the grinding to avoid the accumulation of debris at the bottom of the circular groove of the mold.

[0019] When the U-shaped plate is moved downward, the guide plate and the pushing block can be driven to move downward, so that the inclined surface 1 of the pushing block contacts the inclined surface 2 of the force-bearing block and pushes the force-bearing block to move to one side of the U-shaped frame, and the sliding rod, the clamping plate and the rubber pad are simultaneously driven to move toward the mold, so that the spring 1 is stretched to clamp and fix the mold. At this time, the grinding roller has not been inserted into the circular groove of the mold. When the inclined surface 1 of the pushing block is separated from the inclined surface 2 of the force-bearing block, the vertical surface of the pushing block contacts the vertical surface of the force-bearing block. At this time, the pushing block continues to move downward, and the force-bearing block does not move. The electric telescopic rod drives the displacement adjustment mechanism and the grinding mechanism to move upward for a short distance, that is, when the grinding roller and the hollow tube are taken out of the circular groove of the mold, the vertical surface of the pushing block is always in contact with the vertical surface of the force-bearing block. In this way, it can be ensured that during the grinding of the circular groove of the mold, the mold is always in a clamped and fixed state, and the mold is prevented from moving, thereby ensuring the accuracy of the grinding of the inner mold surface of the mold.

[0020] 5. The present invention can reset the slide rod, the force block, the clamping plate and the rubber pad under the reset force of spring one, and control the motor one to start through the controller to drive the screw rod one to rotate, and then under the action of the screw rod one and the U-shaped block two threads, and under the cooperation of the guide rod one, the U-shaped block two can be moved left and right along the outer surface of the screw rod one, and then control the motor two to start through the controller to drive the screw rod two to rotate through the output shaft, and then under the action of the screw rod two and the circular frame threads, and under the cooperation of the guide rod two, the circular frame can be moved forward and backward along the outer surface of the screw rod two, so that the grinding mechanism can be controlled to move forward and backward, left and right, so as to facilitate the grinding of multiple circular grooves of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic side view of the structure of an inner mold surface grinding device for mold preparation provided by the present invention;

[0022] Figure 2 A bottom view schematic diagram of the structure of an inner mold surface grinding device for mold preparation provided by the present invention;

[0023] Figure 3 A schematic front view of the structure of an inner mold surface grinding device for mold preparation provided by the present invention;

[0024] Figure 4 A schematic cross-sectional structure diagram of an inner mold surface grinding device for mold preparation provided by the present invention;

[0025] Figure 5 The present invention provides an inner mold surface grinding device for mold preparation Figure 4 The enlarged structural diagram at A in the middle;

[0026] Figure 6A schematic diagram of the structure of a grinding roller of an inner mold surface grinding device for mold preparation provided by the present invention;

[0027] Figure 7 A schematic diagram of the hollow tube structure of an inner mold surface grinding device for mold preparation provided by the present invention;

[0028] Figure 8 The present invention provides an inner mold surface grinding device for mold preparation Figure 7 Enlarged structural diagram at B in the middle.

[0029] Legend:

[0030] 1. Workbench; 101. U-shaped frame; 102. Electric telescopic rod; 103. U-shaped plate 1; 104. Screw rod 1; 105. Guide rod 1; 106. Motor 1; 107. U-shaped block 2; 108. Screw rod 2; 109. Guide rod 2; 110. Reciprocating frame; 111. Motor 2; 2. Sliding rod; 201. Force block; 202. Clamping plate; 203. Spring 1; 204. Rubber pad; 205. Push block; 206. Guide plate ; 3. round shaft; 301. motor three; 302. round cover; 303. rotating rod one; 304. grinding roller; 305. gear one; 306. gear sleeve; 307. gear two; 308. rotating rod two; 309. fan blade; 4. hollow tube; 401. movable rod; 402. ball bearing; 403. spring two; 404. filter box; 405. filter plate; 406. connecting pipe; 407. exhaust fan; 408. shielding piece; 409. round hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Examples, such as Figure 1-8As shown, the present invention provides an inner mold surface grinding device for mold preparation, comprising: a workbench 1, a U-shaped frame 101 is fixedly connected to the top of the workbench 1, an electric telescopic rod 102 is fixedly connected to the center of the top of the U-shaped frame 101, a displacement adjustment mechanism is arranged below the electric telescopic rod 102, the displacement adjustment mechanism comprises a U-shaped plate 103, the U-shaped plate 103 is fixedly connected to the electric telescopic rod 102, the opposite sides of the U-shaped plate 103 are fixedly connected to guide plates 206, the bottom of the guide plate 206 is fixedly connected to a pushing block 205, a matching force block 201 is arranged below the pushing block 205, the opposite sides of the U-shaped frame 101 close to the bottom are symmetrically and movably embedded with two sliding rods 2, the two sliding rods 2 are symmetrically and fixedly connected to one side of the force block 201, one end of the two sliding rods 2 is fixedly connected to the clamping plate 202, and a displacement adjustment mechanism is arranged below. The grinding mechanism includes a circular cover 302, a hollow tube 4 is fixedly connected to the eccentric part of the top of the circular cover 302, a movable rod 401 is sealingly and slidably connected to the bottom of the hollow tube 4, one end of the movable rod 401 is fixedly connected to a plurality of shielding plates 408 in a circular array, the outer surface of the hollow tube 4 close to the movable rod 401 is provided with a plurality of circular holes 409 in a circular array, a filter box 404 is fixedly connected to the top of the circular cover 302, a connecting pipe 406 is fixedly connected to one side of the filter box 404, the connecting pipe 406 is fixedly connected to the hollow tube 4, an exhaust fan 407 is fixedly connected to the other side of the filter box 404, the suction end of the exhaust fan 407 extends to the interior of the filter box 404, an air pressure sensor is arranged inside the filter box 404, the circular cover 302 is rotatably connected to a rotating rod 303 away from the top of the hollow tube 4, and one end of the rotating rod 303 is detachably and fixedly connected to a grinding roller 304.

[0033] Further, such as Figure 1-8 As shown, a spring 2 403 is provided on the outer surface of the movable rod 401, and the spring 2 403 is respectively fixedly connected to the movable rod 401 and the hollow tube 4, and a ball 402 is movably connected to the bottom of the movable rod 401. An arc surface is provided on one side of the shielding piece 408, and the arc surface of the shielding piece 408 is adapted to the inner wall of the hollow tube 4. Under the reset force of the spring 2 403, the movable rod 401 can slide downward, so that the shielding piece 408 returns to its original position and blocks the circular hole 409. At this time, no gas enters the hollow tube 4, and the setting of the ball 402 can reduce a certain friction force.

[0034] Further, such as Figure 1-8 As shown, a filter plate 405 is provided inside the filter box 404, and the filter box 404, the connecting pipe 406, the hollow tube 4 and the plurality of circular holes 409 are connected. When the gas passes through the circular holes 409, the hollow tube 4 and the connecting pipe 406 in sequence and enters the interior of the filter box 404, the debris in the gas can be filtered through the filter plate 405.

[0035] Further, such as Figure 1-8 As shown, the displacement adjustment mechanism also includes a screw rod 104, which is rotatably connected to the U-shaped plate 103, and two guide rods 105 are symmetrically fixedly connected to the opposite side of the U-shaped plate 103. The outer surface of the screw rod 104 is threadedly connected to a U-shaped block 107, and the U-shaped block 107 is slidably connected to the guide rod 105. One side of the U-shaped plate 103 is fixedly connected to a motor 106, and the output end of the motor 106 is fixedly connected to one end of the screw rod 104. The motor 106 is started by the controller to drive the screw rod 104 to rotate, and then under the action of the threaded cooperation between the screw rod 104 and the U-shaped block 107, and under the cooperation of the guide rod 105, the U-shaped block 107 can be moved left and right along the outer surface of the screw rod 104.

[0036] Further, such as Figure 1-8 As shown, the opposite side of the U-shaped block 107 is rotatably connected with a screw rod 108, and the opposite side of the U-shaped block 107 is symmetrically fixedly connected with two guide rods 109, the outer surface of the screw rod 108 is threadedly connected with a circular frame 110, and the circular frame 110 is slidably connected to the guide rod 109, and one side of the U-shaped block 107 is fixedly connected with a motor 111, and the output end of the motor 111 is fixedly connected to one end of the screw rod 108. The motor 111 is started by the controller to make its output shaft drive the screw rod 108 to rotate, and then under the action of the threaded cooperation between the screw rod 108 and the circular frame 110, and with the cooperation of the guide rod 109, the circular frame 110 can move back and forth along the outer surface of the screw rod 108.

[0037] Further, such as Figure 1-8 As shown, the grinding mechanism also includes a circular shaft 3, which is fixedly connected to a circular cover 302. A motor 301 is fixedly connected to the inner wall of the circular frame 110. The output end of the motor 301 is fixedly connected to one end of the circular shaft 3. The motor 301 is started by controlling the controller so that its output shaft drives the circular shaft 3 to rotate, and simultaneously drives the circular cover 302, the rotating rod 1 303 and the grinding roller 304 to rotate around the center line of the circular shaft 3.

[0038] Further, such as Figure 1-8As shown, the other end of the rotating rod 1 303 is fixedly connected to the gear 1 305, the bottom of the circular frame 110 is fixedly connected to the gear sleeve 306, the gear sleeve 306 is meshingly connected to the gear 1 305, the circular cover 302 is rotatably connected to the rotating rod 2 308 near the top of the rotating rod 1 303, one end of the rotating rod 2 308 is fixedly connected to the gear 2 307, the gear 2 307 is meshingly connected to the gear 1 305, and the other end of the rotating rod 2 308 is fixedly connected to the fan blade 309, the fan blade 309 is used to blow air to the inside of the circular groove of the mold, which has a certain heat dissipation effect, and the gear 1 305 can be rotated in the opposite direction under the action of the meshing of the gear sleeve 306 and the gear 1 305, and with the cooperation of the fixed state of the gear sleeve 306.

[0039] Further, such as Figure 1-8 As shown, a rubber pad 204 is fixedly connected to one side of the clamping plate 202, and a slide groove is provided on the opposite side of the U-shaped frame 101. The outer surface of the guide plate 206 is slidably connected to the inside of the slide groove. The setting of the rubber pad 204 has a certain protective effect on the mold, and the setting of the slide groove has a certain limiting effect on the guide plate 206.

[0040] Further, such as Figure 1-8 As shown, the bottom of the pushing block 205 is provided with a first slope, and the top of the force-bearing block 201 is provided with a second slope. Through the above arrangement, the first slope of the pushing block 205 can contact and push the second slope of the force-bearing block 201.

[0041] Further, such as Figure 1-8 As shown, a spring 203 is provided on the outer surface of the slide bar 2, and the spring 203 is fixedly connected to the clamping plate 202 and the U-shaped frame 101. When the squeezing force of the push block 205 on the force block 201 is gradually reduced until it disappears, the slide bar 2, the force block 201, the clamping plate 202 and the rubber pad 204 can be reset under the reset force of the spring 203.

[0042] Working principle: When in use, the mold to be polished is placed on the workbench 1, and the controller is used to control the electric telescopic rod 102 to start, so that it stretches, drives the displacement adjustment mechanism and the polishing mechanism to move downward, and controls the displacement adjustment mechanism to make the center line of one of the circular grooves of the mold and the center line of the circular cover 302 to be on the same vertical line. When the circular cover 302 contacts the surface of the mold, the polishing roller 304 is just inserted into the inner surface of the mold, and the polishing roller 304 contacts the side wall of the circular groove of the mold, and then the controller controls the motor 301 to start, so that its output shaft drives the circular shaft 3 to rotate, and synchronously drives the circular cover 302, the rotating rod 1 303 and the polishing roller 304 to rotate around the center line of the circular shaft 3, and synchronously drives the gear sleeve 30 6 and gear 1 305 are meshed, and with the cooperation of the fixed state of the gear sleeve 306, the gear 1 305 can be rotated in the opposite direction, and the rotating rod 1 303 and the grinding roller 304 can be synchronously driven to rotate in the opposite direction. The circular groove side wall of the mold can be polished by the circular rotation and self-rotation of the grinding roller 304 around the center line of the circular shaft 3. The rotation of the gear 1 305 can drive the gear 2 307 to rotate, and the rotating rod 2 308 and the fan blade 309 can be synchronously driven to rotate. The inside of the circular groove of the mold is blown by the fan blade 309. Since there is a certain gap between the round cover 302 and the surface of the mold, the external gas can enter the circular groove of the mold. In this way, not only the heat generated by the grinding of the mold can be dissipated, but also the heat generated by the grinding can be dissipated. The debris is blown up to prevent the debris from accumulating at the bottom of the circular groove of the mold. The circular cover 302 moves downward synchronously, which will insert the hollow tube 4 into the circular groove of the mold, so that the ball 402 contacts the inner wall of the bottom of the circular groove, and the movable rod 401 slides toward the inside of the hollow tube 4, so that the shielding piece 408 moves away from the position of the circular hole 409, and the spring 2 403 is compressed synchronously. At this time, the air pressure sensor inside the filter box 404 detects that the air pressure has returned to normal. The air pressure sensor transmits a signal to the controller, and then the controller controls the exhaust fan 407 to start, so that it sucks air into the filter box 404, so that the gas inside the circular groove of the mold passes through the circular hole 409, the hollow tube 4 and the connecting pipe 406 in turn and enters the inside of the filter box 404. , and the debris in the gas is filtered through the filter plate 405, and the debris is blown up by the fan blades 309, which can speed up the cleaning speed of the debris. When the electric telescopic rod 102 is contracted, the displacement adjustment mechanism and the grinding mechanism will move upward, and the hollow tube 4 will be disengaged from the circular groove of the mold at the same time. Under the reset force of the spring 2 403, the movable rod 401 can slide downward, so that the shielding sheet 408 returns to its original position and blocks the circular hole 409. At this time, no gas enters the hollow tube 4, so that the air pressure inside the filter box 404 is reduced. When it is reduced to a certain value, the air pressure sensor will transmit a signal to the controller, and then the controller will control the exhaust fan 407 to be turned off. In this way, not only can the debris be self-cleaned, but also no manual cleaning is required.Thereby, the efficiency of mold grinding is improved, and the exhaust fan 407 can be automatically turned off and on to save electric energy. Then, the displacement of the grinding mechanism is adjusted left and right, front and back through the displacement adjustment mechanism, and the remaining circular grooves of the mold are ground. This is repeated, and the U-shaped plate 103 moves downward synchronously, which can drive the guide plate 206 and the push block 205 to move downward, so that the inclined surface 1 of the push block 205 contacts the inclined surface 2 of the force block 201, and pushes, so that the force block 201 moves to one side of the U-shaped frame 101, and synchronously drives the slide bar 2, the clamping plate 202 and the rubber pad 204 to move toward the mold, so that the spring 2 03 stretching, clamping and fixing the mold. At this time, the grinding roller 304 has not been inserted into the circular groove of the mold. When the inclined surface 1 of the pushing block 205 is separated from the inclined surface 2 of the force block 201, the vertical surface of the pushing block 205 is in contact with the vertical surface of the force block 201. At this time, the pushing block 205 continues to move downward, and the force block 201 does not move. The electric telescopic rod 102 drives the displacement adjustment mechanism and the grinding mechanism to move a short distance upward, that is, when the grinding roller 304 and the hollow tube 4 are taken out of the circular groove of the mold, the vertical surface of the pushing block 205 is always in contact with the vertical surface of the force block 201. It can ensure that during the grinding of the circular groove of the mold, the mold is always in a clamped and fixed state to avoid the movement of the mold, thereby ensuring the grinding accuracy of the inner mold surface of the mold. When the extrusion force of the push block 205 on the force block 201 gradually decreases until it disappears, the slide bar 2, the force block 201, the clamping plate 202 and the rubber pad 204 can be reset under the reset force of the spring 1 203, and the controller controls the motor 106 to start, so that it drives the screw rod 104 to rotate, and then under the action of the threaded cooperation between the screw rod 104 and the U-shaped block 2 107, and under the cooperation of the guide rod 105, The U-shaped block 107 can be moved left and right along the outer surface of the screw rod 104, and then the controller controls the motor 111 to start, so that its output shaft drives the screw rod 108 to rotate, and then under the action of the screw rod 108 and the circular frame 110 threadedly cooperate, and under the cooperation of the guide rod 109, the circular frame 110 can be moved forward and backward along the outer surface of the screw rod 108, so that the grinding mechanism can be controlled to move forward and backward, left and right, and it is convenient to grind multiple circular grooves of the mold. Under the action of the connection between the grinding roller 304 and the rotating rod 1 303, the appropriate grinding roller 304 can be replaced.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An inner mold surface grinding device for mold preparation, characterized in that: include: A workbench (1), wherein a U-shaped frame (101) is fixedly connected to the top of the workbench (1), an electric telescopic rod (102) is fixedly connected to the center of the top of the U-shaped frame (101), a displacement adjustment mechanism is arranged below the electric telescopic rod (102), the displacement adjustment mechanism comprises a U-shaped plate (103), the U-shaped plate (103) is fixedly connected to the electric telescopic rod (102), and the opposite sides of the U-shaped plate (103) are fixedly connected to guide plates (206), and the guide plates ( The bottom of the U-shaped frame (101) is fixedly connected with a pushing block (205), and a matching force block (201) is arranged below the pushing block (205). Two sliding rods (2) are symmetrically and movably embedded on the opposite sides of the U-shaped frame (101) close to the bottom. The two sliding rods (2) are symmetrically and fixedly connected to one side of the force block (201), and one end of the two sliding rods (2) is fixedly connected with a clamping plate (202). A grinding mechanism is arranged below the displacement adjustment mechanism, and the grinding mechanism includes a round cover (302). The eccentric part of the top of the circular cover (302) is fixedly connected to a hollow tube (4), the bottom of the hollow tube (4) is sealingly and slidably connected to a movable rod (401), one end of the movable rod (401) is fixedly connected to a plurality of shielding sheets (408) in a circumferential array, the outer surface of the hollow tube (4) close to the movable rod (401) is provided with a plurality of circular holes (409) in a circumferential array, the top of the circular cover (302) is fixedly connected to a filter box (404), and one side of the filter box (404) is fixedly connected to A connecting pipe (406) is fixedly connected to the hollow tube (4); an exhaust fan (407) is fixedly connected to the other side of the filter box (404); an air suction end of the exhaust fan (407) extends to the interior of the filter box (404); an air pressure sensor is arranged inside the filter box (404); the round cover (302) is rotatably connected to a rotating rod (303) away from the top of the hollow tube (4); one end of the rotating rod (303) is detachably and fixedly connected to a grinding roller (304).

2. The inner mold surface grinding device for mold preparation according to claim 1, characterized in that: The outer surface of the movable rod (401) is provided with a second spring (403), and the second spring (403) is fixedly connected to the movable rod (401) and the hollow tube (4) respectively. The bottom of the movable rod (401) is movably connected with a ball (402), and one side of the shielding sheet (408) is provided with an arc surface, and the arc surface of the shielding sheet (408) is adapted to the inner wall of the hollow tube (4).

3. The inner mold surface grinding device for mold preparation according to claim 2, characterized in that: A filter plate (405) is disposed inside the filter box (404), and the filter box (404), the connecting pipe (406), the hollow tube (4) and the plurality of circular holes (409) are connected.

4. The inner mold surface grinding device for mold preparation according to claim 1, characterized in that: The displacement adjustment mechanism also includes a screw rod (104), the screw rod (104) is rotatably connected to the U-shaped plate (103), two guide rods (105) are symmetrically fixedly connected to the opposite side of the U-shaped plate (103), the outer surface of the screw rod (104) is threadedly connected to the U-shaped block (107), the U-shaped block (107) is slidably connected to the guide rod (105), one side of the U-shaped plate (103) is fixedly connected to the motor (106), and the output end of the motor (106) is fixedly connected to one end of the screw rod (104).

5. The inner mold surface grinding device for mold preparation according to claim 4, characterized in that: The opposite side of the U-shaped block 2 (107) is rotatably connected to a screw rod 2 (108); the opposite side of the U-shaped block 2 (107) is symmetrically fixedly connected to two guide rods 2 (109); the outer surface of the screw rod 2 (108) is threadedly connected to a circular frame (110); the circular frame (110) is slidably connected to the guide rod 2 (109); one side of the U-shaped block 2 (107) is fixedly connected to a motor 2 (111); the output end of the motor 2 (111) is fixedly connected to one end of the screw rod 2 (108).

6. The inner mold surface grinding device for mold preparation according to claim 5, characterized in that: The grinding mechanism also includes a circular shaft (3), the circular shaft (3) is fixedly connected to the circular cover (302), the inner wall of the circular frame (110) is fixedly connected to a motor three (301), and the output end of the motor three (301) is fixedly connected to one end of the circular shaft (3).

7. The inner mold surface grinding device for mold preparation according to claim 6, characterized in that: The other end of the rotating rod 1 (303) is fixedly connected to a gear 1 (305), the bottom of the circular frame (110) is fixedly connected to a gear sleeve (306), the gear sleeve (306) is meshingly connected to the gear 1 (305), the circular cover (302) is rotatably connected to the rotating rod 2 (308) near the top of the rotating rod 1 (303), one end of the rotating rod 2 (308) is fixedly connected to a gear 2 (307), the gear 2 (307) is meshingly connected to the gear 1 (305), and the other end of the rotating rod 2 (308) is fixedly connected to a fan blade (309).

8. The inner mold surface grinding device for mold preparation according to claim 1, characterized in that: A rubber pad (204) is fixedly connected to one side of the clamping plate (202), and a sliding groove is provided on the opposite side of the U-shaped frame (101), and the outer surface of the guide plate (206) is slidably connected to the inside of the sliding groove.

9. The inner mold surface grinding device for mold preparation according to claim 1, characterized in that: The bottom of the pushing block (205) is provided with a first inclined surface, and the top of the force-bearing block (201) is provided with a second inclined surface.

10. The inner mold surface grinding device for mold preparation according to claim 8, characterized in that: A spring 1 (203) is provided on the outer surface of the sliding rod (2), and the spring 1 (203) is fixedly connected to the clamping plate (202) and the U-shaped frame (101).

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