CN215943074U

CN215943074U - Cutting device for producing sealing ring

Info

Publication number: CN215943074U
Application number: CN202121894676.1U
Authority: CN
Inventors: 李磊
Original assignee: ZHEJIANG CHUANGCHENG AUTO PARTS CO Ltd
Current assignee: ZHEJIANG CHUANGCHENG AUTO PARTS CO Ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2022-03-04
Anticipated expiration: 2031-08-13

Abstract

The utility model discloses a cutting device for producing a sealing ring, which comprises a support, a hydraulic cylinder, a mounting seat, a motor, a rotating shaft, a supporting rod and a cutting assembly, wherein the support is fixedly connected with the hydraulic cylinder; a needle rod is arranged at the bottom of the rotating shaft; the cutting assembly comprises a shell, a cutting piece, a first rack, a stud, a driven gear, a second rack and a first spring; a turntable is arranged on the mounting seat; gear teeth are arranged on the rotary table; the shell is provided with a rotating rod; the rotating rod is rotatably connected with an intermediate gear; when the sealing ring cutting machine is used, the motor drives the supporting rod to rotate when working, so that the cutting assembly rotates around the rotating shaft, the middle gear is meshed with the gear teeth and then is separated when the cutting assembly rotates, the driven gear rotates, the stud is driven to move downwards, the first rack moves downwards, and the sealing ring is gradually cut and formed by the cutting assembly.

Description

Cutting device for producing sealing ring

Technical Field

The utility model belongs to the field of sealing ring processing, and particularly relates to a cutting device for producing a sealing ring.

Background

The existing non-standard sealing ring is generally formed by cutting a rubber block and is generally processed in a one-time cutting and forming mode, when a thick sealing ring is processed, a cutting piece is very laborious, the service life of the cutting piece is reduced on one hand, and the quality of a liquid chamber sealing ring on the other hand cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the cutting device for producing the sealing ring, which improves the use safety and ensures the cutting quality.

The technical scheme provided by the utility model is as follows: a cutting device for producing a sealing ring comprises a support, a hydraulic cylinder fixed on the support, a mounting seat fixed at the bottom of the hydraulic cylinder, a motor fixed on the mounting seat, a rotating shaft connected with a main shaft of the motor, a supporting rod arranged on the rotating shaft, and a cutting assembly fixed on the supporting rod; a needle rod is arranged at the bottom of the rotating shaft; the cutting assembly comprises a shell fixed on the supporting rod, a cutting piece arranged at the bottom of the shell, a first rack arranged at the top of the cutting piece, a stud arranged at the top of the first rack, a driven gear connected with the stud, a second rack connected in the shell in a sliding manner, and a first spring fixed between the second rack and the shell; a turntable is arranged on the mounting seat; a plurality of gear teeth are arranged on the turntable; the shell is provided with a rotating rod; the rotating rod is rotatably connected with an intermediate gear; the intermediate gear is meshed with the driven gear; the gear teeth can be meshed with the intermediate gear; the driven gear is rotatably connected to the top of the shell.

When the cutting tool is used, the hydraulic cylinder drives the mounting seat to move downwards to enable the cutting assembly to be close to the rubber block, the needle rod is inserted into the rubber block to be positioned, then the motor works to drive the supporting rod to rotate, the cutting assembly rotates along with the supporting rod, each time the cutting assembly rotates for a circle, the intermediate gear is meshed with the gear teeth on the rotary table and is separated from the gear teeth, the driven gear and the intermediate gear rotate, the double-screw bolt moves downwards, the bottom of the cutting part performs one-time cutting on the rubber block, after the first rack moves downwards, the second rack is embedded with the first rack under the action of the first spring, the first rack is prevented from moving upwards to reset, the cutting part gradually completes cutting on the rubber block until the sealing ring is formed, compared with the existing one-time cutting mode, when the thick rubber block is cut, the quality of the sealing ring is guaranteed, and meanwhile the service life of the cutting part is prolonged.

Furthermore, a coil spring is fixed on the rotating rod; the tail end of the coil spring is fixed on the intermediate gear; one end of the second rack is provided with a rod piece; the rod piece penetrates out of the shell; a first magnetic pole is fixed at the end part of the rod piece; a second magnetic pole is fixed on the support; the first magnetic pole and the second magnetic pole are mutually attracted.

After the cutting is completed, the hydraulic cylinder drives the cutting assembly to move upwards, the first magnetic pole is gradually close to the second magnetic pole and generates transverse movement, the second rack is separated from the first rack, the rotation of each gear is not hindered, the torsion spring drives the intermediate gear to reversely reset, the driven gear is further reversely rotated, the stud moves upwards, the cutting piece is reset, and preparation is made for next cutting work.

Furthermore, the cutting piece comprises a sliding chute arranged at the bottom of the first rack, two sliding blocks inserted in the sliding chute, a cutting knife arranged at the bottom of the sliding block, an adjusting rod in threaded connection with the sliding blocks, and a tooth block rotatably connected to the adjusting rod; the tooth block is connected in the sliding block in a sliding way; a tooth groove is formed in the inner side of the sliding groove; the tooth block and the tooth groove are mutually embedded; a returning groove is arranged on the outer side of the sliding groove; the adjusting rod penetrates out of the returning groove.

The sliding block is stabilized in the sliding groove through the matching of the tooth block and the tooth groove, and the cutting piece is prevented from shaking in the cutting process; the tooth block can be separated from the tooth socket by rotating the adjusting rod, and the position of each cutting knife can be adjusted by moving the adjusting rod along the return groove, so that sealing rings with different sizes can be manufactured, and the practicability of the device is improved.

Furthermore, one side of the shell is provided with a slot; the slot is connected with the supporting rod in a sliding manner; adjusting grooves are formed in the two sides of the inner part of the slot; a cavity is arranged inside the supporting rod; two adjusting blocks are connected in the cavity in a sliding manner; the two adjusting blocks are respectively embedded with the two adjusting grooves; a first tension spring is fixed between the two adjusting blocks; the end part of the adjusting block is provided with an inclined plane; a trapezoidal block is connected in the cavity in a sliding manner; two sides of the trapezoidal block are respectively abutted against the two adjusting blocks; one end of the trapezoidal block is in threaded connection with a post rod; a second bevel gear is arranged at the end part of the post rod; a first bevel gear is rotationally connected in the cavity; the first bevel gear and the second bevel gear are meshed with each other; one end of the first bevel gear penetrates out of the cavity and is provided with a hand wheel.

The shell is fixed on the supporting rod through the matching of the adjusting groove and the adjusting block, the first bevel gear and the second bevel gear are rotated through rotating the hand wheel before the sealing rings with different thicknesses are processed, the trapezoidal block can move in the cavity and be separated from the adjusting block through the matching of the post rod and the trapezoidal block, and the adjusting block retreats into the cavity under the pulling of the first tension spring, so that the shell can move up and down along the supporting rod, the initial height of the cutting part is adjusted, and the requirements for processing the sealing rings with different thicknesses are met; the slot has restricted the removal of casing with the cooperation of bracing piece, makes the casing remain stable, ensures that the cutting knife keeps vertical state to guarantee cutting quality.

Furthermore, the rotating shaft is rotatably connected with an anti-skid pad; the anti-slip pad is positioned outside the needle rod; a second spring is fixed on the anti-skid pad; the top of the second spring is fixed on the rotating ring; the top of the rotating ring is provided with a connecting ring; the rotating shaft is provided with a ring groove; the rotating ring is inserted into the ring groove; a plurality of balls are arranged between the rotating ring and the ring groove.

By arranging the anti-slip pad, the anti-slip pad contacts the rubber block before the needle rod is inserted into the rubber block, the anti-slip pad is tightly attached to the surface of the rubber block under the action of the second spring, the phenomenon that the rubber block shakes to deform a sealing ring in the process of inserting the needle rod into the rubber block and cutting is avoided, and the cutting quality is guaranteed; because the non-slip mat is tightly attached to the rubber block, other rotating shaft parts rotate relatively, and the resistance of the top of the second spring and the ring groove part during relative rotation is reduced by arranging the rotating ring and the rolling balls, so that the second spring is prevented from being damaged, and the stable work of the device is ensured.

Furthermore, the bottom parts of the two sides of the support are respectively connected with a pressing block in a sliding manner; a second tension spring is fixed at the bottom of the pressing block; the bottom of the second tension spring is fixed on the support; the top of the pressing block is provided with a pressing rod; two sides of the mounting seat are symmetrically provided with a supporting block; the support block is supported above the pressure rod.

In the cutting process, the bottom of the pressing block is tightly attached to the side face of the rubber block under the action of the second tension spring so as to assist the anti-skid pad to fix the rubber block; after the cutting is finished, the hydraulic cylinder drives the mounting seat to move upwards, so that the pressure rod is in contact with the supporting block and drives the supporting block to move upwards, and the pressing block is separated from the rubber block so as to move or take down the rubber block to prepare for next cutting.

In summary, when the sealing ring cutting machine is used, the motor drives the supporting rod to rotate when working, so that the cutting assembly rotates around the rotating shaft, the intermediate gear is meshed with the gear teeth and then separated when the cutting assembly rotates, the driven gear rotates, the stud is driven to move downwards, the first rack moves downwards, and the sealing ring is gradually cut and formed by the cutting assembly.

Drawings

Figure 1 is an isometric cross-sectional view of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partially enlarged view of a portion B in fig. 2.

Fig. 4 is a schematic cross-sectional view of the cutting member of fig. 2.

Fig. 5 is a schematic cross-sectional view of the rotating shaft in fig. 1.

Fig. 6 is a schematic structural view of the turntable in fig. 1.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1-6, a cutting device for producing a sealing ring comprises a support 1, a hydraulic cylinder 2, a mounting base 3, a motor 4, a rotating shaft 5, a support rod 6 and a cutting assembly 7; the hydraulic cylinder 2 is fixed on the support 1, the movable end of the bottom of the hydraulic cylinder is connected with the mounting seat 3, the top of the mounting seat 3 is provided with a plurality of guide pillars, and the guide pillars penetrate through the support 1 and are used for limiting the mounting seat 3 to move along the vertical direction; the motor 4 is fixed at the bottom of the mounting seat 3, and a main shaft of the motor is fixedly connected with the rotating shaft 5; the support rod 6 is arranged at the middle section of the rotating shaft 5, and the cutting assembly 7 is fixed at the end part of the support rod 6; the bottom of the rotating shaft 5 is provided with a needle rod 51, and the needle rod 51 can be inserted into the rubber block; the cutting assembly 7 comprises a housing 71 fixed on the support bar 6, a cutting member 72, a first rack 73, a stud 74, a driven gear 75, a second rack 76, and a first spring 761; the shell 71 is connected with the support rod 6, and the cutting piece 72 is arranged at the bottom of the shell 71 and is connected with the shell 71 in a sliding manner; the first rack 73 is arranged on the top of the cutting piece 72 and inserted into the shell 71; the stud 74 is arranged at the top of the first rack 73, and the top of the stud is in threaded connection with the driven gear 75; the second rack 76 is connected inside the housing 71 in a sliding manner and is mutually embedded with the second rack 76; the first spring 761 is fixed between the second rack 76 and the housing 71; a rotating rod 711 is arranged on the shell 71, an intermediate gear 712 is rotatably connected to the rotating rod 711, and the driven gear 75 is rotatably connected to the top of the shell 71 and meshed with the intermediate gear 712; a rotary disc 31 is fixed on the mounting base 3, and the rotary disc 31 and the rotating shaft 5 are coaxially arranged; the turntable 31 is provided with a plurality of gear teeth 32, and the gear teeth 32 can be meshed with the intermediate gear 712.

Further, a coil spring 713 is fixed on the rotating rod 711, and the end of the coil spring 713 is fixed on the intermediate gear 712; a rod 762 is arranged at one end of the second rack 76, the rod 762 penetrates out of the shell 71, and a first magnetic pole 763 is fixed at the end part; the second magnetic pole 11 is fixed on the support 1, and when the mounting base 3 is located at the uppermost position of the stroke, the first magnetic pole 763 and the second magnetic pole 11 are opposite and mutually attracted.

Further, the cutting element 72 comprises a chute 721, a sliding block 722, a cutting knife 723 arranged at the bottom of the sliding block 722, an adjusting rod 724 and a toothed block 725; the chute 721 is arranged at the bottom of the first rack 73; the number of the sliding blocks 722 is two, the sliding blocks are connected in the sliding grooves 721 in a sliding mode, and the cutting knife 723 is arranged at the bottom of each sliding block 722; the adjusting rod 724 is inserted on the sliding block 722 and is in threaded connection with the sliding block 722, and the toothed block 725 is rotatably connected to one end of the adjusting rod 724; a tooth groove 726 is arranged on the inner side of the sliding groove 721, and the tooth block 725 is embedded with the tooth groove 726; a returning groove 727 is arranged outside the sliding groove 721, and the adjusting rod 724 penetrates out of the returning groove 727.

Furthermore, a slot 714 is arranged on one side of the shell 71, and the slot 714 is connected with the support rod 6 in a sliding manner; the two sides inside the slot 714 are provided with adjusting slots 715; a cavity 61 is arranged in the supporting rod 6, two adjusting blocks 62 are connected in the cavity 61 in a sliding manner, and the two adjusting blocks 62 are respectively embedded with the two adjusting grooves 715; a first tension spring 1363 is fixed between the two adjusting blocks 62; one end of the adjusting block 62 positioned in the cavity 61 is provided with an inclined surface 64; a trapezoidal block 65 is connected in the cavity 61 in a sliding manner, two sides of the trapezoidal block 65 are respectively abutted against the two adjusting blocks 62, and the trapezoidal block 65 is matched with the inclined surface 64 to push the adjusting blocks 62 to move transversely when moving in the cavity 61; one end of the trapezoidal block 65 is connected with a post rod 66 in a threaded manner, and the end part of the post rod 66 is provided with a second bevel gear 67; a first bevel gear 68 is rotationally connected in the cavity 61, and the first bevel gear 68 is meshed with the second bevel gear 67; one end of the first bevel gear 68 penetrates out of the cavity 61 and is provided with a hand wheel 69, and the first bevel gear 68 can be rotated by rotating the hand wheel 69.

Furthermore, the rotating shaft 5 is rotatably connected with an anti-slip pad 52, the anti-slip pad 52 is sleeved outside the needle rod 51, and the top of the anti-slip pad is fixed with a second spring 53; the top of the second spring 53 is fixed on the rotating ring 54; the top of the rotating ring 54 is provided with a connecting ring 55; the rotating shaft 5 is provided with a ring groove 56, and the rotating ring 54 is inserted into the ring groove 56; and a plurality of balls 57 are arranged between the rotating ring 54 and the ring groove 56, and the balls 57 can slide along the ring groove 56.

Furthermore, the bottom parts of two sides of the support 1 are respectively connected with a pressing block 12 in a sliding manner, the bottom of the pressing block 12 is fixed with a second tension spring 13, and the bottom of the second tension spring 13 is fixed on the support 1; the top of the pressing block 12 is provided with a pressing rod 14, two sides of the mounting base 3 are respectively and symmetrically provided with a supporting block 33, and the supporting blocks 33 are supported above the pressing rod 14.

When the rubber block cutting device is used specifically, after the rubber block is placed below the pressing block 12, the hydraulic cylinder 2 drives the mounting seat 3 to move downwards to enable the cutting assembly 7 to be close to the rubber block, the anti-skid pad 52 compresses the rubber block, then the needle rod 51 is inserted into the rubber block to be positioned, and the cutting knife 723 is in contact with the surface of the rubber block; the motor 4 drives the cutting assembly 7 to rotate, the intermediate gear 712 is meshed with and separated from the gear teeth 32 on the turntable 31 along with the rotation of the cutting assembly 7, so that the driven gear 75 and the intermediate gear 712 rotate, the stud 74 and the first rack 73 move downwards, the second rack 76 is embedded with the first rack 73 under the action of the first spring 761, the first rack 73 is prevented from moving upwards and returning, and the cutting knife 723 gradually cuts the rubber block; after cutting, the hydraulic cylinder 2 drives the cutting knife 723 to move upwards for resetting, the first magnetic pole 763 is close to the second magnetic pole 11 and pulls the second rack 76 to move transversely, the torsion spring drives the intermediate gear 712 to rotate reversely, so that the driven gear 75 rotates reversely, and the stud 74 pulls the cutting knife 723 to move upwards for resetting; the support block 33 pushes the pressure rod 14 to move upwards, and the pressure block 12 is separated from the rubber block so as to move the rubber block to prepare for next cutting.

Claims

1. A cutting device for producing a sealing ring comprises a support (1), a hydraulic cylinder (2) fixed on the support (1), a mounting seat (3) fixed at the bottom of the hydraulic cylinder (2), a motor (4) fixed on the mounting seat (3), a rotating shaft (5) connected with a main shaft of the motor (4), a supporting rod (6) arranged on the rotating shaft (5), and a cutting assembly (7) fixed on the supporting rod (6); the method is characterized in that: the bottom of the rotating shaft (5) is provided with a needle rod (51); the cutting assembly (7) comprises a shell (71) fixed on the supporting rod (6), a cutting piece (72) installed at the bottom of the shell (71), a first rack (73) arranged at the top of the cutting piece (72), a stud (74) arranged at the top of the first rack (73), a driven gear (75) connected with the stud (74), a second rack (76) connected in the shell (71) in a sliding mode, and a first spring (761) fixed between the second rack (76) and the shell (71); a turntable (31) is arranged on the mounting seat (3); a plurality of gear teeth (32) are arranged on the turntable (31); a rotating rod (711) is arranged on the shell (71); the rotating rod (711) is rotatably connected with an intermediate gear (712); the intermediate gear (712) is meshed with the driven gear (75); the gear teeth (32) can be meshed with an intermediate gear (712); the driven gear (75) is rotatably connected to the top of the shell (71).

2. The cutting device for producing sealing rings according to claim 1, characterized in that: a coil spring (713) is fixed on the rotating rod (711); the tail end of the coil spring (713) is fixed on the intermediate gear (712); a rod piece (762) is arranged at one end of the second rack (76); the rod (762) penetrates out of the shell (71); a first magnetic pole (763) is fixed at the end of the rod piece (762); a second magnetic pole (11) is fixed on the support (1); the first magnetic pole (763) and the second magnetic pole (11) are mutually attracted.

3. The cutting device for producing sealing rings according to claim 1, characterized in that: the cutting piece (72) comprises a sliding groove (721) arranged at the bottom of the first rack (73), two sliding blocks (722) inserted in the sliding groove (721), a cutting knife (723) arranged at the bottom of the sliding blocks (722), an adjusting rod (724) in threaded connection with the sliding blocks (722) and a toothed block (725) rotatably connected to the adjusting rod (724); the tooth block (725) is connected in the sliding block (722) in a sliding way; a tooth groove (726) is arranged on the inner side of the sliding groove (721); the tooth block (725) and the tooth groove (726) are mutually embedded; a returning groove (727) is arranged at the outer side of the sliding groove (721); the adjusting rod (724) penetrates out of the returning groove (727).

4. The cutting device for producing sealing rings according to claim 1, characterized in that: a slot (714) is formed in one side of the shell (71); the slot (714) is connected with the supporting rod (6) in a sliding way; adjusting grooves (715) are formed in two sides of the inner portion of the slot (714); a cavity (61) is arranged in the support rod (6); two adjusting blocks (62) are connected in the cavity (61) in a sliding manner; the two adjusting blocks (62) are respectively embedded with the two adjusting grooves (715); a first tension spring (1363) is fixed between the two adjusting blocks (62); the end part of the adjusting block (62) is provided with an inclined plane (64); a trapezoidal block (65) is connected in the cavity (61) in a sliding manner; two sides of the trapezoidal block (65) are respectively abutted against the two adjusting blocks (62); one end of the trapezoidal block (65) is connected with a column rod (66) in a threaded mode; a second bevel gear (67) is arranged at the end part of the post rod (66); a first bevel gear (68) is rotationally connected in the cavity (61); the first bevel gear (68) and the second bevel gear (67) are meshed with each other; one end of the first bevel gear (68) penetrates out of the cavity (61) and is provided with a hand wheel (69).

5. The cutting device for producing sealing rings according to claim 1, characterized in that: the rotating shaft (5) is rotatably connected with an anti-skid pad (52); the anti-skid pad (52) is positioned outside the needle rod (51); a second spring (53) is fixed on the anti-skid pad (52); the top of the second spring (53) is fixed on the rotating ring (54); the top of the rotating ring (54) is provided with a connecting ring (55); a ring groove (56) is arranged on the rotating shaft (5); the rotating ring (54) is inserted into the annular groove (56); a plurality of balls (57) are arranged between the rotating ring (54) and the ring groove (56).

6. The cutting device for producing sealing rings according to claim 1, characterized in that: the bottom parts of the two sides of the support (1) are respectively connected with a pressing block (12) in a sliding way; a second tension spring (13) is fixed at the bottom of the pressing block (12); the bottom of the second tension spring (13) is fixed on the support (1); the top of the pressing block (12) is provided with a pressing rod (14); two sides of the mounting seat (3) are symmetrically provided with a supporting block (33); the support block (33) is supported above the pressure lever (14).