CN219523324U - Tool rest shaft mounting structure of rotary folding machine - Google Patents

Abstract

The utility model discloses a tool rest shaft mounting structure of a rotary folding machine, which comprises a tool rest provided with a mounting hole, a tool rest shaft penetrating through the mounting hole on the tool rest, an anti-abrasion shaft sleeve sleeved on the tool rest shaft and mounted in the mounting hole on the tool rest, a tool arm, a folding knife and a folding knife, wherein one end of the tool arm is connected with the tool rest shaft and rotates and swings around the tool rest shaft, and the folding knife is connected to the other side of the tool arm for folding operation; the anti-abrasion shaft sleeve is provided with a shaft sleeve main body arranged in the tool rest mounting hole, a limiting table which is extended out of one end of the shaft sleeve main body and is abutted with the side wall of the tool rest, and shaft passing holes with two ends penetrating through. According to the utility model, when the folding knife continuously rotates and swings by taking the knife rest shaft as the center through the knife arm, the situation that the knife rest shaft directly wears the knife rest is avoided, the anti-abrasion shaft sleeve is simple in structure and convenient to detach, and the later maintenance cost is effectively saved.

Description

Tool rest shaft mounting structure of rotary folding machine

Technical Field

The utility model relates to the field of rotary folding machine equipment, in particular to a rotary folding machine tool rest shaft mounting structure.

Background

The rotary folding machine is printing equipment generated along with the modern printing industry, is mainly used for folding paper with various sizes and thicknesses, and is suitable for large-scale printing factories to carry out a large amount of folding operations.

When the rotary folding machine works, the folding knife is required to continuously perform the cyclic motion of lower knife and lifting knife, the folding knife of the folding machine in the related art is fixedly arranged on the knife arm, one end of the knife arm is penetrated with a knife rest shaft, two ends of the knife rest shaft extending out of the knife arm are correspondingly arranged with shaft holes matched with the knife rest, and the knife rest is provided with a clearance groove, so that the knife arm drives the folding knife to rotate by taking the knife rest shaft as the center to lift the knife. When the folding knife is installed, the knife rest shaft is attached to the shaft hole on the knife rest, so that unstable vibration of the joint is avoided, but long-term rotation can lead to continuous abrasion of the shaft hole on the knife rest, and the folding precision is affected.

Disclosure of Invention

In order to overcome the defect that when the rotary folding machine in the related art is used, larger abrasion occurs at the shaft hole where the cutter rest and the cutter rest shaft are matched and installed, the utility model provides a cutter rest shaft installation structure of the rotary folding machine.

The utility model provides a tool rest shaft mounting structure of a rotary folding machine, which adopts the following technical scheme:

a tool rest shaft mounting structure of a rotary folding machine comprises a tool rest provided with a mounting hole, a tool rest shaft penetrating through the mounting hole on the tool rest, an anti-abrasion shaft sleeve sleeved on the tool rest shaft and mounted in the mounting hole on the tool rest, a tool arm, one end of which is connected with the tool rest shaft and rotates and swings around the tool rest shaft, and a folding knife, wherein the folding knife is connected to the other side of the tool arm and used for folding; the anti-abrasion shaft sleeve is provided with a shaft sleeve main body which is arranged in the mounting hole, a limiting table which is extended out of one end of the shaft sleeve main body and is abutted with the side wall of the tool rest, and shaft passing holes with two ends penetrating through.

Through adopting above-mentioned technical scheme, set up in the abrasionproof axle sleeve installs the knife rest mounting hole, the axle hole laminating installation of crossing of knife rest axle and abrasionproof axle sleeve separates the direct contact face of knife rest axle and knife rest, when the folding knife passes through the knife arm and uses the knife rest axle to rotate constantly and swing as the center, has effectively avoided the condition that the knife rest axle caused continuous wearing and tearing to the knife rest.

Optionally, an inclined chamfer is arranged on the end face of the shaft sleeve main body of the anti-wear shaft sleeve; and an inclined chamfer is arranged at the orifice of the shaft passing hole.

By adopting the technical scheme, the end face of the shaft sleeve main body is provided with the inclined chamfer, so that the guide function is realized during installation, and the abrasion-proof shaft sleeve is convenient to install in the installation hole of the tool rest in a matched manner; the inclined chamfer is arranged at the orifice of the through shaft hole, so that the tool rest shaft is convenient to insert into the through shaft hole to be matched and installed.

Optionally, the connection between the anti-wear shaft sleeve and the mounting hole on the tool rest is in an interference fit mode.

Through adopting above-mentioned technical scheme, interference fit's connected mode has restricted that the relative motion takes place for the mounting hole on abrasionproof axle sleeve and the knife rest, has effectively avoided the wearing and tearing that abrasionproof axle sleeve and knife rest's mounting hole probably take place.

Optionally, the mounting hole department that adopts clearance fit, the spacing bench of abrasionproof axle sleeve and knife rest is provided with the trompil, and the screw hole is seted up to the knife rest side correspondence, the fixed bolt is worn to establish in the trompil on the abrasionproof axle sleeve and the screw hole cooperation department of knife rest to fix.

By adopting the technical scheme, the anti-abrasion shaft sleeve is arranged on the outer side of the tool rest through the fixing bolt, and the anti-abrasion shaft sleeve and the tool rest mounting hole are in clearance fit, so that the possibility of abrasion of the tool rest shaft to the tool rest through the anti-abrasion shaft sleeve is further reduced; after the abrasion-proof shaft sleeve is worn, the bolts are removed, the abrasion-proof shaft sleeve is replaced, the maintenance is convenient, and the cost is saved.

Optionally, the mode of fixed connection of spring pin subassembly is adopted in the connection of mounting hole on abrasionproof axle sleeve and the tool rest, spring pin subassembly includes the casing of rigid coupling on the tool rest, installs the pin pole that is used for fixed abrasionproof axle sleeve in the casing inner chamber, the spacing piece of rigid coupling on the pin pole and connects the spring that provides elasticity between spacing piece and casing inner chamber, be provided with the trompil that runs through to the mounting hole on the tool rest corresponding with the pin pole, be provided with fixed blind hole corresponding with the pin pole on the abrasionproof axle sleeve, the pin pole passes casing and tool rest in proper order, inserts in the fixed blind hole of abrasionproof axle sleeve.

Through adopting above-mentioned technical scheme, the pin passes casing and knife rest, inserts in the fixed blind hole of abrasionproof axle sleeve, plays fixed spacing effect to the abrasionproof axle sleeve under the effect of spring elasticity, when demolising the abrasionproof axle sleeve, the user stretches out the one end of casing to the pin and applys the pulling force that deviates from the knife rest direction, the pin is retracted, take out the abrasionproof axle sleeve can, the spring pin subassembly is fixed effective, easy operation, and convenient laborsaving when installing and dismantling the abrasionproof axle sleeve.

Optionally, an inclined surface opposite to the installation direction of the anti-wear shaft sleeve is arranged at the end part of the pin rod extending into the installation hole.

Through adopting above-mentioned technical scheme, when packing into the abrasionproof axle sleeve, the abrasionproof axle sleeve applys the extrusion force to the inclined plane of pin rod tip, and the pin rod is retracted to the tool rest trompil in keep away the position, and when the fixed blind hole on the abrasionproof axle sleeve corresponds the position of pin rod, the extrusion force that the pin rod received disappears, and under the spring force effect, the pin rod stretches out and inserts and accomplish fixedly in the fixed blind hole on the abrasionproof axle sleeve, and the installation need not operating personnel to apply force the pin rod always, convenient and fast more.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the anti-abrasion shaft sleeve is arranged between the tool rest and the tool rest shaft, so that the direct contact surface of the tool rest shaft and the tool rest is separated, and when the folding knife rotates and swings continuously by taking the tool rest shaft as the center through the tool arm, the condition that the tool rest shaft directly causes continuous abrasion to the tool rest is effectively avoided;

2. the anti-abrasion shaft sleeve is arranged on the outer side of the tool rest through the fixing bolt, and the anti-abrasion shaft sleeve and the tool rest mounting hole are arranged in a clearance fit manner, so that the possibility of abrasion of the tool rest shaft to the tool rest through the anti-abrasion shaft sleeve is further reduced; after the abrasion-proof shaft sleeve is abraded, the bolts are removed, the abrasion-proof shaft sleeve is replaced, the maintenance is convenient, and the cost is saved;

3. through setting up the connection of the mounting hole on abrasionproof axle sleeve and the knife rest into the mode that the spring pin subassembly is fixed, and stretch into the tip of mounting hole at the pin pole and be provided with the inclined plane of relative abrasionproof axle sleeve installation direction, when loading into the abrasionproof axle sleeve, the direct insertion abrasionproof axle sleeve counterpoint can, during the dismantlement, pull outward to the pin pole application of force, just can take out the abrasionproof axle sleeve, and installation dismantlement is convenient laborsaving.

Drawings

Fig. 1 is a schematic view of a blade carrier shaft mounting structure of a rotary folding machine of this embodiment 1;

FIG. 2 is an exploded view of the mounting of the wear sleeve and tool holder of example 2;

FIG. 3 is a cross-sectional view showing the fitting relation of the blade carrier shaft mounting structure of the rotary folding machine of the present embodiment 1;

FIG. 4 is an exploded view of the mounting of the wear sleeve and tool holder of example 2;

fig. 5 is a cross-sectional view showing the fitting relation of the blade carrier shaft mounting structure of the rotary folding machine of this embodiment 3.

Reference numerals illustrate:

1. a tool holder; 11. a clearance groove; 12. a mounting hole; 2. a tool holder shaft; 3. wear-resistant shaft sleeve; 31. a sleeve body; 32. a limiting table; 33. a shaft passing hole; 4. a cutter arm; 5. a folding knife; 6. a fixing bolt; 7. a spring pin assembly; 71. a housing; 72. a pin rod; 73. a limiting piece; 74. and (3) a spring.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-5.

The embodiment of the utility model discloses a tool rest shaft mounting structure of a rotary folding machine.

Example 1

Referring to fig. 1, a rotary folding machine knife rest shaft mounting structure comprises a knife rest 1, a knife rest shaft 2, an anti-abrasion shaft sleeve 3, a knife arm 4 and a folding knife 5, wherein a clearance groove 11 is formed in the middle of one side surface of the knife rest 1, the knife arm 4 is correspondingly arranged with the clearance groove 11, one end of the knife arm 4 extends into the clearance groove 11 to be connected with the knife rest 1 in a mounting way, a through mounting hole 12 is formed in the outer side surface, perpendicular to the clearance groove 11, of the knife rest 1, the mounting hole 12 is communicated with the clearance groove 11 in a penetrating way, the anti-abrasion shaft sleeve 3 is respectively arranged at two ends of the mounting hole 12, a through hole corresponding to the knife rest shaft 2 is formed in one end, extending into the clearance groove 11, of the knife arm 4, and when the axis of the through hole on the knife arm 4, the axis of the mounting hole 12 on the knife rest 1 and the axis of the anti-abrasion shaft sleeve 3 are correspondingly coincident, the knife rest shaft 2 is simultaneously penetrated and arranged in the three in a penetrating way; a folding knife 5 is fixedly arranged on one side of the knife arm 4 away from the knife rest shaft 2, and the folding knife 5 is responsible for folding paper materials.

Referring to fig. 2 and 3, a sleeve main body 31 of the anti-wear sleeve 3 has a cylindrical structure, the outer side of the sleeve main body 31 is matched with a mounting hole 12 of the tool rest 1, and the sleeve main body 31 is mounted and fixed in the mounting hole 12 of the tool rest 1 through interference fit; one end of the shaft sleeve main body 31 is provided with an overhanging limiting table 32, the diameter of the limiting table 32 is larger than that of the shaft sleeve main body 31, and when the anti-abrasion shaft sleeve 3 is matched with the tool rest 1, the side surface, close to the shaft sleeve main body 31, of the limiting table 32 is abutted on the outer side of the tool rest 1; the anti-abrasion shaft sleeve 3 is provided with a through shaft hole 33 with two through ends in the middle, the through shaft hole 33 is matched with the tool rest shaft 2, and the tool rest shaft 2 is arranged in the through shaft hole 33 in a penetrating manner and is attached to the inner wall of the through shaft hole 33.

The end face of the shaft sleeve main body 31 of the anti-abrasion shaft sleeve 3 is provided with an inclined chamfer, so that the anti-abrasion shaft sleeve 3 can be conveniently matched and installed in the installation hole 12 of the tool rest 1 during installation; and moreover, the hole opening of the through shaft hole 33 of the anti-abrasion shaft sleeve 3 is provided with an inclined chamfer, so that the tool rest shaft 2 and the through shaft hole 33 can be conveniently matched and installed.

The implementation principle of the embodiment 1 of the utility model is as follows: the cutter arm 4 rotates around the cutter rest shaft 2, and the folding cutter 5 continuously carries out cutter feeding and cutter lifting by the driving of the cutter arm 4 so as to carry out folding operation on paper; the anti-abrasion shaft sleeve 3 is arranged at the joint of the tool rest shaft 2 and the mounting hole 12 on the tool rest 1, and the tool rest shaft 2 and the anti-abrasion shaft sleeve 3 are attached and mounted, so that the condition that the tool rest shaft 2 directly causes continuous abrasion to the tool rest 1 is effectively avoided.

Example 2

Referring to fig. 4, this embodiment is different from embodiment 1 in that the wear sleeve 3 and the tool holder 1 are connected by means of a detachable bolt connection. The anti-wear shaft sleeve 3 and the mounting hole 12 of the tool rest 1 are in clearance fit, one side, away from the shaft sleeve main body 31, of the limiting table 32 of the anti-wear shaft sleeve 3 is provided with holes distributed in a circumferential array, the side surface of the tool rest 1, where the anti-wear shaft sleeve 3 is mounted, is correspondingly provided with threaded holes, and the holes of the anti-wear shaft sleeve 3 and the threaded holes of the tool rest 1 are penetrated with fixing bolts 6 for fixing.

The implementation principle of the embodiment 2 of the utility model is as follows: the anti-abrasion shaft sleeve 3 is arranged at the joint of the tool rest shaft 2 and the mounting hole 12 of the tool rest 1, the anti-abrasion shaft sleeve 3 is in clearance fit with the tool rest 1, and is fixedly mounted through bolt connection, the tool rest shaft 2 and the anti-abrasion shaft sleeve 3 are mounted in a fitting mode, the possibility that the tool rest shaft 2 abrades the tool rest 1 is further reduced, the anti-abrasion shaft sleeve 3 is convenient to mount, after the anti-abrasion shaft sleeve 3 abrades, the fixing bolt 6 is dismounted, and the anti-abrasion shaft sleeve 3 is replaced.

Example 3

Referring to fig. 5, this embodiment differs from embodiment 1 in that the wear sleeve 3 is fixedly connected to the tool holder 1 by means of a spring pin assembly 7. The anti-abrasion shaft sleeve 3 is in clearance fit with the mounting hole 12 of the tool rest 1, and the spring pin assembly 7 is mounted on the tool rest 1 to fix the anti-abrasion shaft sleeve 3.

The spring pin assembly 7 comprises a shell 71, a pin rod 72, a limiting piece 73 and a spring 74, wherein the shell 71 is fixedly arranged on the tool rest 1, a through hole is formed in the center of the shell 71, the pin rod 72 is matched and arranged in the through hole of the shell 71 in a penetrating mode, two ends of the pin rod extend out of the shell 71, the limiting piece 73 is fixedly connected to a rod body of the pin rod 72, the pin rod 72 is arranged in a cavity of the shell 71 in a sleeved mode, one end of the spring 74 is fixedly connected to the side face of the limiting piece 73, which faces away from the tool rest 1, the other end of the spring 74 is connected to the side wall, opposite to the limiting piece 73, of the cavity of the shell 71, and the spring 74 is in a compressed state when being arranged, and the limiting piece 73 is propped against the inner wall, close to the tool rest 1, of the shell 71.

One end of the pin rod 72 extending out of the shell penetrates through the tool rest 1 to fix the anti-abrasion shaft sleeve 3, an opening penetrating into the mounting hole 12 is correspondingly formed in the tool rest 1 and corresponds to the pin rod 72, a fixed blind hole is correspondingly formed in the anti-abrasion shaft sleeve 3 and corresponds to the pin rod 72, the pin rod 72 sequentially penetrates through the shell 71 and the tool rest 1 and is inserted into the fixed blind hole of the anti-abrasion shaft sleeve 3 to fix the anti-abrasion shaft sleeve 3.

The end of the pin 72 extending into the mounting hole 12 is provided with an inclined surface opposite to the mounting direction of the anti-wear sleeve 3, when the anti-wear sleeve 3 is mounted into the mounting hole 12, the anti-wear sleeve 3 applies extrusion force to the inclined surface of the end of the pin 72, so that the spring 74 is further contracted, the pin 72 is retracted to a position away from the hole of the tool rest 1, when the fixed blind hole on the anti-wear sleeve 3 corresponds to the position of the pin 72, the extrusion force received by the pin 72 disappears, and the pin 72 extends out of the fixed blind hole inserted into the anti-wear sleeve 3 to complete fixation under the action of the spring 74.

The implementation principle of the embodiment 3 of the utility model is as follows: in the housing 71, the spring 74 is in a compressed state, applies an elastic force to the limiting piece 73 fixedly connected to the pin 72, one end of the pin 72 is inserted into the mounting hole 12 of the tool rest 1, and the other end extends out of the housing 71; when the anti-abrasion shaft sleeve 3 is installed, the anti-abrasion shaft sleeve 3 applies extrusion force to the inclined surface of the end part of the pin rod 72, the spring 74 is further compressed, the pin rod 72 is retracted into the tool rest 1, after the anti-abrasion shaft sleeve 3 is installed, the pin rod 72 is inserted into a fixed blind hole on the anti-abrasion shaft sleeve 3 under the elastic force of the spring 74, and the fixed installation of the anti-abrasion shaft sleeve 3 is completed. When the anti-abrasion shaft sleeve 3 is removed, a user applies a pulling force to one end of the pin 72 extending out of the shell 71, which is away from the direction of the tool rest 1, the pin 72 retracts, and the anti-abrasion shaft sleeve 3 is taken out.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

Claims (6)

1. A rotary folding machine knife rest axle mounting structure, its characterized in that: the folding knife comprises a knife rest (1) provided with a mounting hole (12), a knife rest shaft (2) penetrating through the mounting hole (12) on the knife rest (1), an anti-abrasion shaft sleeve (3) sleeved on the knife rest shaft (2) and mounted in the mounting hole (12) on the knife rest (1), a knife arm (4) with one end connected with the knife rest shaft (2) and rotating and swinging by taking the knife rest shaft (2) as the center, and a folding knife (5) connected with the other side of the knife arm (4) for folding operation; the anti-abrasion shaft sleeve (3) is provided with a shaft sleeve main body (31) arranged in the mounting hole (12), a limiting table (32) which is extended out of one end of the shaft sleeve main body (31) and is in butt joint with the side wall of the tool rest (1), and a shaft passing hole (33) with two ends penetrating.

2. The shaft mounting structure of a rotary folding machine blade carrier according to claim 1, characterized in that: the end face of the shaft sleeve main body (31) of the anti-abrasion shaft sleeve (3) is provided with an inclined chamfer; and an inclined chamfer is arranged at the orifice of the through-hole (33).

3. The shaft mounting structure of a rotary folding machine blade carrier according to claim 1, characterized in that: the anti-abrasion shaft sleeve (3) is connected with the mounting hole (12) on the tool rest (1) in an interference fit mode.

4. The shaft mounting structure of a rotary folding machine blade carrier according to claim 1, characterized in that: the anti-wear shaft sleeve (3) and the mounting hole (12) of the tool rest (1) are in clearance fit, an opening is formed in the limiting table (32) of the anti-wear shaft sleeve (3), a threaded hole is correspondingly formed in the side face of the tool rest (1), and a fixing bolt (6) is penetrated and arranged at the matching position of the opening on the anti-wear shaft sleeve (3) and the threaded hole of the tool rest (1) for fixing.

5. The shaft mounting structure of a rotary folding machine blade carrier according to claim 1, characterized in that: the anti-wear shaft sleeve (3) is connected with the tool rest (1) through a mode of fixedly connecting a spring pin assembly (7), the spring pin assembly (7) comprises a shell (71) fixedly connected to the tool rest (1), a pin rod (72) installed in an inner cavity of the shell (71) and used for fixing the anti-wear shaft sleeve (3), a limiting piece (73) fixedly connected to the pin rod (72) and a spring (74) connected between the limiting piece (73) and the inner cavity of the shell (71) and used for providing elasticity, an opening penetrating into the mounting hole (12) is correspondingly formed in the tool rest (1) and the pin rod (72), a fixed blind hole is correspondingly formed in the anti-wear shaft sleeve (3) and the pin rod (72), and the pin rod (72) sequentially penetrates through the shell (71) and the tool rest (1) and is inserted into the fixed blind hole of the anti-wear shaft sleeve (3).

6. The shaft mounting structure for a blade carrier of a rotary folding machine according to claim 5, wherein: the end part of the pin rod (72) extending into the mounting hole (12) is provided with an inclined surface relative to the mounting direction of the anti-abrasion shaft sleeve (3).