A gear grinding machine for dotted line blades of folding machines for printing

Abstract

The invention discloses a gear grinding machine for a dotted line blade of a folding machine for printing, and the invention relates to the technical field of gear grinding machines. In the existing gear grinding machines, since the mold disc and the tooth disc are easily rotated relative to each other during the process of being pushed and rotated, the tooth patterns between the mold disc and the tooth disc do not match each other, resulting in damage to the tooth patterns of the tooth disc blade when grinding is still performed according to the tooth patterns of the mold disc. The friction force during rotation is reduced by the relative protrusions of the pressure ring and the tray, and the friction force between the tooth disc and the mold disc is increased by using a separation ring and a pressure block, so that when the mold disc and the tooth disc rotate as a whole, the internal friction force is large, while the friction force of the outer surface is small, so that the mold disc and the tooth disc rotate more smoothly together, and it is prevented that the mold disc and the tooth disc slide relative to each other during the grinding process, resulting in the grinding position error during the grinding process, which not only affects the grinding effect of the tooth patterns, but also easily causes the tooth patterns of the tooth disc to be damaged.

Description

Technical Field

[0001] The invention relates to the technical field of gear grinding machines, in particular to a gear grinding machine for a dotted line blade of a folding machine for printing. Background Art

[0002] At present, the gear grinding machine mainly includes a machine body and a grinding wheel box and a workpiece box located at the front end of the machine body, wherein a slide seat that can slide forward and backward is arranged on the machine body, a slide table that can slide left and right is arranged on the upper end of the slide seat, and the grinding wheel box can be installed on the front end surface of the slide table by sliding up and down, and the dotted line blade of the folding machine has two types: strip type and disc type. In the existing grinding process of the disc type blade, a mold plate that is compatible with the disc type blade is usually used to clamp the blade. In the grinding process, the disc type blade is driven to rotate together by pushing the mold plate, and the tooth pattern of the gear plate is ground by the grinding disk;

[0003] However, in the existing gear grinding machines, the die plate and the tooth plate are prone to relative rotation during the process of being pushed and rotated, resulting in the tooth patterns between the die plate and the tooth plate not matching each other, causing damage to the tooth patterns of the tooth plate blade when grinding is still performed according to the tooth patterns of the die plate. Summary of the invention

[0004] To achieve the above purpose, the present invention is implemented by the following technical scheme: a gear grinding machine for a dotted line blade of a printing folding machine, comprising:

[0005] Frame;

[0006] A gear grinding mechanism, which is used to grind the gear disc; the gear grinding mechanism is installed on the top of the frame;

[0007] A fixing mechanism, which is used to fix the toothed disc, and is installed on the outer surface of the frame, and comprises a connecting seat, and a support disc is fixedly connected to the top of the connecting seat;

[0008] The fixing mechanism also includes an adjusting mechanism, which includes a threaded cylinder fixedly connected to the top of the supporting disk, the outer surface of the threaded cylinder is provided with a thread, the outer surface of the threaded cylinder is threadedly connected with an adjusting ring, the top of the adjusting ring is provided with a tray, the top of the tray is provided with a protrusion, the protrusion is used to support the bottom of the toothed disk, so as to reduce the contact area and reduce the friction during rotation, the bottom of the tray is fitted with the top of the adjusting ring, the outer surface of the tray is slidably connected to the inner wall of the threaded cylinder, the outer surface of the threaded cylinder is slidably connected to a pressure plate, the inner wall of the pressure plate is symmetrically provided with a pressure block, the outer surface of the pressure block is rotatably connected to the inner wall of the pressure plate, the top of the pressure block is provided with a separating ring, and the separating ring A protrusion is provided at the bottom of the spacer ring, and the protrusion of the spacer ring is tightly against the top of the pressure block. The outer surface of the threaded cylinder is threadedly connected with a pressure ring, and the protrusion at the bottom of the pressure ring contacts the top of the mold plate, thereby reducing the friction between the top of the mold plate and the pressure ring. The friction during rotation is reduced by the relative protrusions of the pressure ring and the tray. By utilizing the spacer ring and the pressure block, the friction between the toothed disk and the mold plate is increased, so that when the mold plate and the toothed disk rotate as a whole, the internal friction is larger, while the friction on the outer surface is smaller, so that the mold plate and the toothed disk rotate more smoothly together, preventing relative sliding between the mold plate and the toothed disk during the grinding process, resulting in the wrong grinding position during the grinding process, which not only affects the grinding effect of the tooth pattern, but also easily causes the tooth pattern of the toothed disk to be damaged.

[0009] Preferably, an adjusting block is symmetrically provided on the top of the tray, and the outer surface of the adjusting block is slidably connected to the inner wall of the threaded barrel, and a pressure cap is slidably connected to the opposite side of the adjusting block. The pressure cap is rotated to change the position of the pressure cap, so that the adjusting block slides, and the adjusting block better fits the hole at the center of the toothed disk, to prevent the center hole from being worn and slightly enlarged after the toothed disk is used for a long time, resulting in a gap between the hole and the threaded barrel during the grinding process, causing sliding during the grinding process, causing the toothed disk to shift and affecting the grinding. A screw is threadedly connected to the inner wall of the pressure cap, and the bottom end of the screw is fixedly connected to the inner wall of the connecting seat, and the inner wall of the connecting seat is fixedly connected to the outer surface of the frame.

[0010] Preferably, the frame includes a warehouse body, the top of which is fixedly connected to a top plate, the bottom of which is symmetrically provided with legs, the top of which is fixedly connected to the bottom of the warehouse body, the inner wall of the warehouse body is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to the outer surface of the gear grinding mechanism, the top of the top plate is provided with a slide groove and a slide rail, and the top of the top plate is fixedly connected to a baffle to prevent burns to personnel caused by metal debris splashing during grinding.

[0011] Preferably, the gear grinding mechanism includes a connecting plate, the outer surface of the connecting plate is fixedly connected to the output end of the cylinder, and the cylinder can drive the gear grinding mechanism as a whole to reciprocate by fixing the connecting plate to the cylinder to grind the gear disc. The top of the connecting plate is symmetrically provided with groove blocks, the bottom of the groove blocks is fixedly connected to the top of the connecting plate, the inner wall of the groove blocks is slidably connected to the slide rail of the top plate, the top of the groove block is fixedly connected to the grinding mechanism, the top of the groove block is fixedly connected to the swivel seat, the inner wall of the swivel seat is rotatably connected to the swivel arm, Through the rotating arm, the position of the push mold disc is adjusted before grinding, so that the grinding mechanism and the rotation of the toothed disc are more accurately matched, thereby ensuring the effect of grinding the tooth pattern. The end of the rotating arm away from the rotating seat is slidably connected with a groove plate, and the inner wall of the groove plate is rotatably connected with a fixing bolt, and the outer surface of the groove plate is fixedly connected with a push knife. After the position of the groove plate and the mold disc is determined by the fixing bolt, the position of the push knife is determined to ensure a tighter fit between the push knife position and the tooth pattern of the mold disc, thereby ensuring the accuracy of pushing during grinding, and preventing the push knife from being incorrectly connected to the mold disc position, thereby affecting the grinding process.

[0012] Preferably, the grinding mechanism includes a slot seat, the bottom of the slot seat is fixedly connected to the top of the slot block, the surface of the slot seat is fixedly connected to a motor, the output end of the motor is fixedly connected to an emergency stop mechanism, and the outer surface of the emergency stop mechanism is meshed with a grinding disc.

[0013] Preferably, the emergency stop mechanism comprises a rotating shaft, the outer surface of the rotating shaft is provided with teeth, the outer surface of the rotating shaft meshes with the inner wall of the grinding disc, the outer surface of the rotating shaft is fixedly connected with a chuck, one end of the rotating shaft is fixedly connected with the output end of the motor, and the other end of the rotating shaft is threadedly connected with a fixing cap, through the cooperation of the fixing cap and the top plate, when the pull rod is engaged with the chuck, the grinding disc is clamped to prevent the grinding disc from vibrating during the grinding process and affecting the process of grinding the teeth, the outer surface of the chuck is symmetrically provided with pull rods, and the inner wall of the pull rod is provided with The protrusion of the pull rod is engaged with the outer surface of the chuck, one end of the pull rod is fixedly connected with a fixed plate, the inner wall of the fixed plate is fixedly connected with the outer surface of the groove seat, and the other end of the pull rod is fixedly connected with a top plate. Through the engagement of the pull rod and the chuck, relative rotation occurs between the mold plate and the toothed plate. When the tooth pattern is misaligned, the grinding plate is subjected to the lateral thrust brought by the rotation of the toothed plate, causing the pull rod to deform, releasing the engagement with the chuck, and moving the top plate away from the grinding plate, causing the grinding plate to move and release the meshing connection with the rotating shaft, stopping rotation and grinding, and avoiding damage to the toothed plate.

[0014] The present invention provides a gear grinding machine for a dotted line blade of a printing folding machine. It has the following beneficial effects:

[0015] 1. The pressure ring and the tray reduce the friction during rotation through the relative protrusions of the pressure ring and the tray, and increase the friction between the toothed disc and the die disc by utilizing the separation ring and the pressure block. When the die disc and the toothed disc rotate as a whole, the internal friction is larger, while the friction on the outer surface is smaller, so that the die disc and the toothed disc rotate more smoothly together, preventing the die disc and the toothed disc from sliding relative to each other during the grinding process, resulting in the wrong grinding position during the grinding process, which not only affects the grinding effect of the toothed disc, but also easily causes the toothed disc to be damaged.

[0016] Second, the adjusting block changes the position of the pressing cap by rotating the pressing cap, causing the adjusting block to slide, so that the adjusting block can better fit the hole at the center of the toothed disc, thereby preventing the center hole from being worn and slightly enlarged after the toothed disc is used for a long time, causing a gap between the hole and the threaded barrel during the grinding process.

[0017] 3. The fixing bolt determines the position of the push knife after the position of the groove plate and the mold plate is determined, ensuring a tighter fit between the push knife and the tooth pattern of the mold plate, ensuring the accuracy of pushing during grinding, and preventing the push knife from being incorrectly connected with the mold plate, which affects the grinding process.

[0018] Fourth, the fixing cap and the top plate cooperate with each other to clamp the grinding disc when the pull rod is connected with the chuck, so as to prevent the grinding disc from vibrating during the grinding process and affecting the process of grinding the tooth pattern.

[0019] 5. The pull rod is engaged with the chuck through which the die plate and the tooth plate rotate relative to each other. When the tooth pattern is misaligned, the grinding disc is subjected to the lateral thrust brought by the rotation of the tooth plate, causing the pull rod to deform, thereby releasing the engagement with the chuck and moving the top plate away from the grinding disc. This causes the grinding disc to move and release the meshing connection with the rotating shaft, stopping rotation and grinding to avoid damage to the tooth plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the external structure of a gear grinding machine for a dotted line blade of a printing folding machine according to the present invention;

[0021] Figure 2 It is a structural dissection diagram of a gear grinding machine for a dotted line blade of a printing folding machine according to the present invention;

[0022] Figure 3 It is a schematic diagram of the fixing mechanism structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the regulating mechanism of the present invention;

[0024] Figure 5 This is a structural anatomical diagram of the regulating mechanism of the present invention;

[0025] Figure 6It is a front view of the structure of the gear grinding mechanism of the present invention;

[0026] Figure 7 It is a side view of the structure of the gear grinding mechanism of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the emergency stop mechanism of the present invention.

[0028] In the figure: 1, frame; 2, fixing mechanism; 3, grinding mechanism; 11, bin; 12, baffle; 13, top plate; 14, cylinder; 15, leg; 21, connecting seat; 22, adjusting mechanism; 23, supporting plate; 2201, pressing ring; 2202, threaded barrel; 2203, screw; 2204, pressing cap; 2205, adjusting block; 2206, tray; 2207, adjusting ring; 2208, pressing block; 2209 , pressure plate; 2210, separation ring; 31, connecting plate; 32, slot block; 33, grinding mechanism; 34, swivel seat; 35, rotating arm; 36, fixing bolt; 37, slot plate; 38, push knife; 331, slot seat; 332, grinding disc; 333, emergency stop mechanism; 334, motor; 3331, fixed plate; 3332, rotating shaft; 3333, pull rod; 3334, chuck; 3335, top plate; 3336, fixing cap. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0030] The first embodiment, as Figure 1 to Figure 2 As shown, the present invention provides a technical solution: a gear grinding machine for a dotted line blade of a printing folding machine, comprising:

[0031] Frame 1;

[0032] The gear grinding mechanism 3 is used to grind the gear disc; the gear grinding mechanism 3 is installed on the top of the frame 1, and the frame 1 includes a warehouse body 11, and the top of the warehouse body 11 is fixedly connected to a top plate 13, and the bottom of the warehouse body 11 is symmetrically provided with support legs 15, and the ground is supported by the support legs 15 so that the gear grinder is fixed to the ground, and the top of the support legs 15 is fixedly connected to the bottom of the warehouse body 11, and the inner wall of the warehouse body 11 is fixedly connected with a cylinder 14, and the gear grinding mechanism 3 is driven by the cylinder 14 to slide on the top of the top plate 13, and the gear disc is driven to rotate through the mold plate to grind the gear teeth of the gear disc to be ground, and the output end of the cylinder 14 is fixedly connected to the outer surface of the gear grinding mechanism 3, and a slide groove and a slide rail are provided on the top of the top plate 13, and a baffle 12 is fixedly connected to the top of the top plate 13 to block the flying debris during the grinding process.

[0033] The second embodiment is based on the first embodiment. Figures 3 to 5 As shown, a fixing mechanism 2 is used to fix the toothed disc. The fixing mechanism 2 is installed on the outer surface of the frame 1. The fixing mechanism 2 includes a connecting seat 21. The fixing mechanism 2 is installed on the surface of the frame 1 through the connecting seat 21. A supporting plate 23 is fixedly connected to the top of the connecting seat 21. The adjusting mechanism 22 is supported by the supporting plate 23 so that the adjusting mechanism 22 fixes the toothed disc to be polished.

[0034] The fixing mechanism 2 also includes an adjusting mechanism 22, which includes a threaded barrel 2202 fixedly connected to the top of the support disk 23, the outer surface of the threaded barrel 2202 is provided with threads, the outer surface of the threaded barrel 2202 is threadedly connected with an adjusting ring 2207, a tray 2206 is provided on the top of the adjusting ring 2207, and a protrusion is provided on the top of the tray 2206. Before grinding, the toothed disk to be grinded is supported by the tray 2206, and the bottom of the tray 2206 is fitted with the top of the adjusting ring 2207. When the tray 2206 supports the toothed disk, according to the thickness of the toothed disk, the worker uses a wrench to rotate the adjusting ring 2207 according to the grinding position, changes the supporting height of the tray 2206, and adjusts the position of the toothed disk. The outer surface of the tray 2206 is slidably connected to the inner wall of the threaded barrel 2202, and the outer surface of the threaded barrel 2202 is The surface is slidably connected with a pressure plate 2209. After the height of the toothed disc is adjusted, the pressure plate 2209 is pressed against the top of the toothed disc. The inner wall of the pressure plate 2209 is symmetrically provided with pressure blocks 2208. The outer surface of the pressure blocks 2208 is rotatably connected to the inner wall of the pressure plate 2209. The pressure blocks 2208 are attached to the surface of the toothed disc under the action of gravity. A separating ring 2210 is provided on the top of the pressure block 2208. A protrusion is provided on the bottom of the separating ring 2210. The protrusion of the separating ring 2210 is tightly against the top of the pressure block 2208. Then, the mold disc is placed on the top of the separating ring 2210. The outer surface of the threaded cylinder 2202 is threadedly connected with a pressure ring 2201. After the mold disc is matched with the tooth patterns of the toothed disc, the protrusion of the pressure ring 2201 is used to squeeze the top of the mold disc to clamp the toothed disc and the mold disc.

[0035] An adjusting block 2205 is symmetrically arranged on the top of the tray 2206, and the outer surface of the adjusting block 2205 is slidably connected to the inner wall of the threaded tube 2202, and a pressing cap 2204 is slidably connected to the opposite side of the adjusting block 2205, and the pressing cap 2204 is rotated on the surface of the screw 2203 to make the adjusting block 2205 slide, and is adjusted according to the inner diameter of the gear disk so that the adjusting block 2205 is close to the inner wall of the center hole of the gear disk, and the inner wall of the pressing cap 2204 is threadedly connected to the screw 2203, and the bottom end of the screw 2203 is fixedly connected to the inner wall of the connecting seat 21, and the inner wall of the connecting seat 21 is fixedly connected to the outer surface of the frame 1.

[0036] The third embodiment is based on the first and second embodiments. Figures 6 to 8As shown, the gear grinding mechanism 3 includes a connecting plate 31, the outer surface of the connecting plate 31 is fixedly connected to the output end of the cylinder 14, a groove block 32 is symmetrically arranged on the top of the connecting plate 31, the bottom of the groove block 32 is fixedly connected to the top of the connecting plate 31, the inner wall of the groove block 32 is slidably connected to the slide rail of the top plate 13, the connecting plate 31 is driven to reciprocate by the cylinder 14, so that the groove block 32 slides on the top of the top plate 13, and a grinding mechanism 33 is fixedly connected to the top of the groove block 32, and the grinding mechanism 33 reciprocates according to the tooth pattern of the toothed disc , the tooth pattern is polished, the top of the groove block 32 is fixedly connected with a swivel seat 34, the inner wall of the swivel seat 34 is rotatably connected with a swivel arm 35, the end of the swivel arm 35 away from the swivel seat 34 is slidably connected with a groove plate 37, the inner wall of the groove plate 37 is rotatably connected with a fixing bolt 36, and the outer surface of the groove plate 37 is fixedly connected with a push knife 38. During the reciprocating motion of the connecting plate 31, the push knife 38 pushes the matching tooth patterns of the mold disc and the tooth disc to rotate, so that the mold disc and the tooth disc rotate at the same time, and the grinding mechanism 33 is used to grind the tooth patterns of the tooth disc.

[0037] The grinding mechanism 33 includes a slot seat 331, the bottom of the slot seat 331 is fixedly connected to the top of the slot block 32, and the surface of the slot seat 331 is fixedly connected to a motor 334. During the process of grinding the tooth pattern of the gear disc, the motor 334 drives the emergency stop mechanism 333 to rotate, so that the grinding disc 332 rotates. During the reciprocating motion, the tooth pattern of the gear disc is polished by the grinding disc 332. The output end of the motor 334 is fixedly connected to the emergency stop mechanism 333, and the outer surface of the emergency stop mechanism 333 is meshed with the grinding disc 332.

[0038] The emergency stop mechanism 333 includes a rotating shaft 3332, the outer surface of which is provided with teeth, the outer surface of the rotating shaft 3332 meshes with the inner wall of the grinding disc 332, and through the meshing connection, the rotating shaft 3332 drives the grinding disc 332 to rotate and grind the toothed disc, the outer surface of the rotating shaft 3332 is fixedly connected with a chuck 3334, one end of the rotating shaft 3332 is fixedly connected with the output end of the motor 334, and the other end of the rotating shaft 3332 is threadedly connected with a fixing cap 3336, and the fixing cap 3336 cooperates with the top plate 3335 fixed by the pull rod 3333 to control the position of the grinding disc 332, the outer surface of the chuck 3334 is symmetrically provided with pull rods 3333, and the inner wall of the pull rod 3333 is provided with a protrusion, The protrusion of the rod 3333 is engaged with the outer surface of the chuck 3334. When relative sliding occurs between the toothed disk and the mold disk, the tooth patterns of the mold disk and the toothed disk are misaligned, causing the grinding position of the grinding disc 332 to be wrong, resulting in a thrust of the grinding disc 332 toward the side of the top plate 3335. When the thrust is too large, the pull rod 3333 is deformed, releasing the engagement with the chuck 3334, so that the pull rod 3333 pulls the top plate 3335 to move, causing the grinding disc 332 to move under the action of the thrust, releasing the engagement with the rotating shaft, and stopping the grinding work. One end of the pull rod 3333 is fixedly connected to the fixed disk 3331, the inner wall of the fixed disk 3331 is fixedly connected to the outer surface of the slot seat 331, and the other end of the pull rod 3333 is fixedly connected to the top plate 3335.

[0039] When in use, the toothed disc and the mold disc are manually fixed in the fixing mechanism 2 according to the tooth pattern position. After the worker controls the knife alignment, the cylinder 14 in the frame 1 drives the gear grinding mechanism 3 to reciprocate, and the push knife 38 connected by the rotating arm pushes the mold disc and the toothed disc to rotate according to the tooth pattern, and at the same time, the grinding mechanism 33 grinds the tooth pattern of the toothed disc.

[0040] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A gear grinding machine for a dotted line blade of a printing folding machine, characterized in that: include: A frame (1), the frame (1) being used to support a structural component, the frame (1) comprising a storage body (11), the bottom of the storage body (11) being fixedly connected with supporting legs (15), the supporting legs (15) being symmetrically arranged at the bottom of the storage body (11); A gear grinding mechanism (3), the gear grinding mechanism (3) being used to grind the gear disc; the gear grinding mechanism (3) being mounted on the top of the frame (1); A fixing mechanism (2), the fixing mechanism (2) being used to fix the toothed disc, the fixing mechanism (2) being mounted on the outer surface of the frame (1), the fixing mechanism (2) comprising a connecting seat (21), the top of the connecting seat (21) being fixedly connected to a supporting disc (23); The fixing mechanism (2) further comprises an adjusting mechanism (22), wherein the adjusting mechanism (22) comprises a threaded barrel (2202) fixedly connected to the top of the supporting plate (23), the outer surface of the threaded barrel (2202) being provided with threads, the outer surface of the threaded barrel (2202) being threadedly connected to an adjusting ring (2207), the top of the adjusting ring (2207) being provided with a tray (2206), the top of the tray (2206) being provided with a protrusion, the bottom of the tray (2206) being in contact with the top of the adjusting ring (2207), the outer surface of the tray (2206) being in contact with the threaded barrel The inner wall of the threaded cylinder (2202) is slidably connected, the outer surface of the threaded cylinder (2202) is slidably connected with a pressure plate (2209), the inner wall of the pressure plate (2209) is symmetrically provided with a pressure block (2208), the outer surface of the pressure block (2208) is rotatably connected with the inner wall of the pressure plate (2209), a separation ring (2210) is provided at the top of the pressure block (2208), a protrusion is provided at the bottom of the separation ring (2210), the protrusion of the separation ring (2210) is closely attached to the top of the pressure block (2208), and the outer surface of the threaded cylinder (2202) is threadedly connected with a pressure ring (2201); An adjusting block (2205) is symmetrically arranged on the top of the tray (2206); the outer surface of the adjusting block (2205) is slidably connected to the inner wall of the threaded cylinder (2202); and a pressure cap (2204) is slidably connected to the opposite side of the adjusting block (2205); The inner wall of the pressing cap (2204) is threadedly connected to a screw rod (2203), the bottom end of the screw rod (2203) is fixedly connected to the inner wall of the connecting seat (21), and the inner wall of the connecting seat (21) is fixedly connected to the outer surface of the frame body (1).

2. The gear grinding machine for the dotted line blade of a printing folding machine according to claim 1, characterized in that: The top of the bin body (11) is fixedly connected to a top plate (13), the inner wall of the bin body (11) is fixedly connected to a cylinder (14), the output end of the cylinder (14) is fixedly connected to the outer surface of the gear grinding mechanism (3), a slide groove and a slide rail are provided on the top of the top plate (13), and a baffle (12) is fixedly connected to the top of the top plate (13).

3. The gear grinding machine for the dotted line blade of a printing folding machine according to claim 1, characterized in that: The gear grinding mechanism (3) comprises a connecting plate (31), the outer surface of the connecting plate (31) is fixedly connected to the output end of the cylinder (14), the top of the connecting plate (31) is symmetrically provided with a groove block (32), and the bottom of the groove block (32) is fixedly connected to the top of the connecting plate (31).

4. The gear grinding machine for the dotted line blade of a printing folding machine according to claim 3, characterized in that: The inner wall of the groove block (32) is slidably connected to the slide rail of the top plate (13); the top of the groove block (32) is fixedly connected to a grinding mechanism (33); the top of the groove block (32) is fixedly connected to a swivel seat (34); the inner wall of the swivel seat (34) is rotatably connected to a swivel arm (35); one end of the swivel arm (35) away from the swivel seat (34) is slidably connected to a groove plate (37); the inner wall of the groove plate (37) is rotatably connected to a fixing bolt (36); and the outer surface of the groove plate (37) is fixedly connected to a push knife (38).

5. The gear grinding machine for the dotted line blade of a printing folding machine according to claim 4, characterized in that: The grinding mechanism (33) comprises a slot seat (331), the bottom of the slot seat (331) is fixedly connected to the top of the slot block (32), a motor (334) is fixedly connected to the surface of the slot seat (331), an emergency stop mechanism (333) is fixedly connected to the output end of the motor (334), and a grinding disc (332) is meshed on the outer surface of the emergency stop mechanism (333).

6. The gear grinding machine for the dotted line blade of a printing folding machine according to claim 5, characterized in that: The emergency stop mechanism (333) comprises a rotating shaft (3332), the outer surface of the rotating shaft (3332) being provided with tooth patterns, and the outer surface of the rotating shaft (3332) is meshed with the inner wall of the grinding disc (332).

7. The gear grinding machine for the dotted line blade of a printing folding machine according to claim 6, characterized in that: A chuck (3334) is fixedly connected to the outer surface of the rotating shaft (3332), one end of the rotating shaft (3332) is fixedly connected to the output end of the motor (334), the other end of the rotating shaft (3332) is threadedly connected to a fixing cap (3336), and pull rods (3333) are symmetrically arranged on the outer surface of the chuck (3334).

8. The gear grinding machine for the dotted line blade of a printing folding machine according to claim 7, characterized in that: The inner wall of the pull rod (3333) is provided with a protrusion, the protrusion of the pull rod (3333) is clamped with the outer surface of the chuck (3334), one end of the pull rod (3333) is fixedly connected to a fixed disk (3331), the inner wall of the fixed disk (3331) is fixedly connected to the outer surface of the groove seat (331), and the other end of the pull rod (3333) is fixedly connected to a top disk (3335).

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