CN115570073B

CN115570073B - Gate-type rotary roller press for rim forming

Info

Publication number: CN115570073B
Application number: CN202211560377.3A
Authority: CN
Inventors: 崔平; 王彦民; 杨铭杰
Original assignee: Shijiazhuang Zhongxing Machinery Manufacturing Co ltd
Current assignee: Shijiazhuang Zhongxing Machinery Manufacturing Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-03-10
Anticipated expiration: 2042-12-07
Also published as: CN115570073A

Abstract

The invention provides a portal type rotating roller press for rim molding, which comprises a base, a carrier roller mechanism and a press roller mechanism. The base is provided with a through cavity which is communicated along the horizontal direction. The two carrier roller mechanisms are arranged on the base and are respectively arranged on two sides of the through cavity, each carrier roller mechanism is provided with a movable mold supporting roller, and the two mold supporting rollers move relatively to the through cavity to form a mold supporting structure for sleeving the semi-finished rim product. The compression roller mechanism is located above the carrier roller mechanism, a die roller capable of moving along the vertical direction is arranged on the compression roller mechanism, the die roller moves downwards, and the die roller clamp the semi-finished rim product together, and the rim is extruded and formed along with the rotation of the die structure. The portal type rotating roller press for rim molding provided by the invention can ensure that the stress is uniform in the rim molding process after the portal type rotating roller press is acted by the die roller on the press roller mechanism, the thickness of two sides of the rim in the axial direction can be effectively ensured to be consistent, the quality of the rim is ensured, and the portal type rotating roller press is strong in practicability.

Description

Gate-type rotary roller press for rim forming

Technical Field

The invention belongs to the technical field of presses, and particularly relates to a gate type rotating roller press for rim forming.

Background

The rim, commonly known as a rim, is a component that mounts and supports the tire on the wheel at its upper periphery, and forms the wheel with the spokes. In the manufacturing process of the wheel rim, firstly, a steel plate needs to be rolled, butt ends are welded seamlessly to form a semi-finished product with a cylindrical structure, then, spinning is carried out through a press machine, and finally, the shape with the concave outer edge surface is formed.

In the prior art, a press machine is generally of a cantilever structure, a fixed cantilever shaft is arranged on a machine frame, a fixed rotating roller is fixedly arranged at the end part of the fixed cantilever shaft, a movable cantilever shaft capable of moving up and down is arranged above the cantilever shaft, a pressure rotating roller is fixedly arranged at the end part of the movable cantilever shaft, and after a cylindrical semi-finished product is sleeved on the fixed rotating roller, the pressure rotating roller moves downwards and performs spin forming on a rim together with the fixed rotating roller through the movement of the movable cantilever shaft. This kind of press structure has great drawback, and the influence that receives the structure of cantilever axle is great, and the fashioned in-process atress of rim is inhomogeneous, and the thickness that stretches out distolateral near fixed cantilever axle will be greater than the fixed distolateral thickness near fixed cantilever axle, and the axial both sides thickness of rim is different promptly, causes the quality variation of rim, and its practicality is relatively poor.

Disclosure of Invention

The embodiment of the invention provides a gate type roller-rotating press for rim molding, and aims to solve the problem of poor practicability caused by uneven stress in the rim molding process of the conventional press for rim molding.

In order to achieve the purpose, the invention adopts the technical scheme that: the portal type rotating roller press for rim molding comprises a base, a carrier roller mechanism and a press roller mechanism; the base is provided with a through cavity which is communicated along the horizontal direction; setting the through direction of the through cavity as a first direction, and setting the horizontal direction vertical to the first direction as a second direction; the two carrier roller mechanisms are arranged on the base and are respectively arranged on two sides of the through cavity along the second direction, each carrier roller mechanism is provided with a mold supporting roller capable of moving along the second direction, and the two mold supporting rollers relatively move to the through cavity to form a mold supporting structure for sleeving a semi-finished rim product; the pressing roller mechanism is located above the carrier roller mechanism, a die roller capable of moving in the vertical direction is arranged on the pressing roller mechanism, the die roller moves downwards, clamps the semi-finished rim product together with the die supporting roller, and performs extrusion forming on the rim along with the rotation of the die supporting structure.

In one possible implementation manner, the press roller mechanism comprises a sliding table and a first telescopic structure; the sliding table is arranged on the base in a sliding mode along the vertical direction, and the die pressing roller is rotatably connected with a rotating shaft seat arranged at the bottom end of the sliding table; the first telescopic structure is arranged along the vertical direction, the fixed end of the first telescopic structure is fixedly arranged on the base, and the telescopic end of the first telescopic structure is fixedly connected with the sliding table so as to drive the sliding table to move up and down;

and the base is provided with a plurality of sliding columns for the sliding table to slide.

In one possible implementation, the axis of the die cylinder is arranged along the second direction.

In a possible implementation manner, the portal type roller-spinning press for rim molding further comprises a positioning mechanism, wherein the positioning mechanism comprises a pushing assembly, a rotating rod, a pull rod and a second telescopic structure; the two pushing assemblies are respectively positioned on two sides of the sliding table along the first direction and are in sliding connection with the sliding table along the first direction, and the pushing assemblies are used for positioning the semi-finished rim product along the second direction before the die pressing roller and the die supporting structure clamp the semi-finished rim product; the rotating rod is rotatably arranged on the sliding table, the axis of the rotating rod is arranged along the vertical direction, and the rotating rod is provided with two connecting ends; the two pull rods are respectively arranged in one-to-one correspondence with the two pushing assemblies, one end of each pull rod is hinged with the pushing assemblies, and the other end of each pull rod is hinged with one connecting end of the rotating rod; the second telescopic structure is arranged along the first direction, the fixed end of the second telescopic structure is fixedly arranged on the sliding table, and the telescopic end of the second telescopic structure is connected with one of the pushing assemblies;

wherein, be equipped with on the slip table and supply the gliding slide rail of top pushing assembly.

In a possible implementation manner, each pushing assembly comprises a sliding beam, a fixed frame, a sliding block, a push rod, a spring, a positioning wheel, a third telescopic structure and a fourth telescopic structure; the sliding beam is arranged along the second direction, the sliding beam is arranged on the sliding rail in a sliding mode, the sliding beam is hinged to the pull rod, and a hinged portion is arranged at the lower end of the sliding beam; the fixed frame is hinged with the hinged part, the hinge axis is arranged along the second direction, and the fixed frame is provided with a sliding cavity arranged along the second direction; the number of the sliding blocks is two, and the two sliding blocks are arranged in the sliding cavity in a sliding mode; the number of the push rods is two, the two push rods are respectively arranged in one-to-one correspondence with the two sliding blocks, each push rod is arranged in the sliding block in a sliding mode, one end of each push rod is provided with a hinged portion for the rotary connection of the positioning wheel, and the other end of each push rod is provided with a limiting portion clamped with the corresponding sliding block; the two springs are arranged in one-to-one correspondence with the two push rods, each spring is sleeved on the corresponding push rod, one end of each spring is abutted against the corresponding slide block, and the other end of each spring is abutted against the hinge part; the fixed end of the third telescopic structure is hinged with the sliding beam, and the telescopic end of the third telescopic structure is hinged with the fixed frame and used for adjusting the fixed frame to turn over so that the push rod is arranged along the radial direction of the rim supported by the die supporting structure; the fourth extending structure is provided with two, two the fourth extending structure all sets firmly on the fixed frame, and respectively with two the slider links to each other to drive two the slider is relative slip or is carried on the back mutually and slide.

In one possible implementation manner, the positioning wheel comprises a limiting circular plate, an abutting cylinder, a compensating cylinder and a damping bolt; one plate surface of the limiting circular plate is coaxially connected with a rotating shaft which is used for being rotationally connected with the limiting part; the abutting cylinder is coaxially connected to the other plate surface of the limiting circular plate, a first insertion hole is formed in the end part, extending out of the limiting circular plate, of the abutting cylinder, and a first countersunk threaded hole communicated with the insertion hole is formed in the side wall of the abutting cylinder; the diameter of the compensation cylinder is equal to that of the abutting cylinder, one end of the compensation cylinder is provided with an insertion shaft matched with the first insertion hole, the other end of the compensation cylinder is provided with a second insertion hole, the specification of the second insertion hole is the same as that of the first insertion hole, and the side wall of each compensation cylinder is provided with a second countersunk threaded hole communicated with the second insertion hole; the damping bolts are multiple, correspond to the first countersunk head threaded holes and the second countersunk head threaded holes, and are used for locking the compensation cylinders on the abutting cylinders.

In one possible implementation, the fourth telescopic structure is a servo hydraulic cylinder.

In one possible implementation, each idler mechanism comprises a slide, a fifth telescopic structure and a driver; the sliding seat is arranged on the machine base in a sliding mode along the second direction, the die supporting roller is rotatably arranged at one end, close to the through cavity, of the sliding seat, and the rotating axis is arranged along the second direction; the fixed end of the fifth telescopic structure is connected with the machine base, and the telescopic end of the fifth telescopic structure is connected with the sliding seat so as to drive the sliding seat to slide along the second direction; the driver is fixedly arranged on the sliding seat and is in power connection with the die supporting roller;

wherein, be equipped with on the frame and supply the gliding slide of slide.

In a possible implementation manner, the gate-type roller-rotating press for rim molding further comprises a lifting mechanism, wherein the lifting mechanism comprises a support plate, a sixth telescopic structure and a limiting roller; the carrier plate is horizontally arranged in the through cavity and is positioned below the die supporting roller; the number of the sixth telescopic structures is at least two, the sixth telescopic structures are uniformly distributed at the bottom of the through cavity and are arranged along the vertical direction, the fixed end of each sixth telescopic structure is fixedly arranged on the machine base, and the telescopic end is connected with the carrier plate so as to drive the carrier plate to move up and down; the limiting rollers are arranged in two, the two limiting rollers are arranged in the first direction at intervals, each limiting roller is arranged in the second direction and is rotatably arranged above the carrier plate, and a supporting space for placing a semi-finished rim product or a finished rim product is formed between the two limiting rollers.

In this implementation, set up two bearing roller mechanisms on the frame and can make two die-supporting roller relative movement to lead to the chamber in, can guarantee the work of the semi-manufactured material loading of rim, simultaneously because of two die-supporting roller form the die-supporting structure jointly, both ends along second direction die-supporting structure are fixed connection structure, can guarantee to receive compression roller mechanism and go up the die-pressing roller effect back, the atress among the rim forming process is even, can be effectual the thickness unanimity of guaranteeing both sides in the rim axial, guarantee the quality of rim, therefore, the clothes hanger is strong in practicability.

Drawings

FIG. 1 is a schematic structural diagram of a portal type rotating roller press for rim molding according to an embodiment of the present invention;

fig. 2 is a schematic side view of a portal type rotating roller press for rim molding according to an embodiment of the present invention (a frame is a half section);

FIG. 3 is a schematic structural view of a sliding table and a positioning mechanism of a portal type rotating roller press for rim molding according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a pushing assembly of the portal roller press for rim molding according to an embodiment of the present invention (a sliding beam and a third telescopic structure are hidden);

FIG. 5 is a schematic structural diagram of a positioning wheel of a portal type roller press for rim molding according to an embodiment of the present invention;

description of the reference numerals:

10. a machine base; 11. the cavity is communicated; 12. a slide rail; 20. a carrier roller mechanism; 21. a slide base; 22. a fifth telescopic structure; 23. a driver; 24. a die supporting roller; 30. a press roll mechanism; 31. a sliding table; 32. a first telescoping structure; 33. a die pressing roller; 40. a positioning mechanism; 41. a pushing assembly; 411. a sliding beam; 412. a fixing frame; 413. a slider; 414. a push rod; 415. a spring; 416. positioning wheels; 4161. a limiting circular plate; 4162. abutting against the cylinder; 4163. a compensation cylinder; 4164. a damping bolt; 417. a third telescopic structure; 418. a fourth telescoping structure; 42. a rotating rod; 43. a pull rod; 44. a second telescoping structure; 50. a lifting mechanism; 51. a carrier plate; 52. a sixth telescopic structure; 53. a limiting roller; 60. a wheel rim.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 2, the portal roller press for rim molding according to the present invention will now be described. The gate-type roller-rotating press for rim molding comprises a machine base 10, a carrier roller mechanism 20 and a press roller mechanism 30. The housing 10 has a through cavity 11 extending horizontally therethrough. The direction in which the through cavity 11 penetrates is set to a first direction, and a horizontal direction perpendicular to the first direction is set to a second direction. The carrier roller mechanisms 20 are two, the two carrier roller mechanisms 20 are arranged on the machine base 10 and are respectively arranged on two sides of the through cavity 11 along the second direction, each carrier roller mechanism 20 is provided with a mold supporting roller 24 capable of moving along the second direction, and the two mold supporting rollers 24 move relatively to the through cavity 11 to jointly form a mold supporting structure for sleeving the semi-finished product of the rim 60. The compression roller mechanism 30 is located above the carrier roller mechanism 20, the compression roller mechanism 30 is provided with a die roller 33 capable of moving along the vertical direction, the die roller 33 descends, and clamps the semi-finished product of the rim 60 together with the die roller 24, and the rim 60 is extruded and formed along with the rotation of the die roller structure.

The gate-type rotating roller press for forming the rim provided by the embodiment adopts the following use modes: firstly, placing the flared rim 60 semi-finished product in a proper position in the through cavity 11, moving the two die supporting rollers 24 on the roller mechanism 20 relatively and extending into the rim 60 semi-finished product, and forming a die supporting structure by the two die supporting rollers 24 for sleeving the rim 60 semi-finished product and supporting the rim 60 semi-finished product. The compression roller mechanism 30 drives the compression die roller 33 to move downwards, clamps the semi-finished product of the rim 60 together with the die supporting structure, and realizes the molding of the rim 60 through the rotation of the die supporting structure and the downward movement of the compression die roller 33.

It should be noted that the mold supporting rollers 24 can be cut into halves by fixed rollers (fixed rollers connected to the end of the cantilever shaft) before modification, and the two mold supporting rollers 24 have the same structure.

The gate-type revolves roller press for the rim shaping that this embodiment provided, compared with the prior art, two bearing roller mechanisms 20 that set up on frame 10 can make two die supporting rollers 24 relative movement to lead to in the chamber 11, can guarantee the work of the semi-manufactured material loading of rim 60, form die supporting structure jointly because of two die supporting rollers 24 simultaneously, both ends along second direction die supporting structure are fixed connection structure, can guarantee to receive on the compression roller mechanism 30 behind the effect of die supporting roller 33, the atress in the rim 60 forming process is even, can effectually guarantee the thickness of both sides on the rim 60 axial unanimously, guarantee the quality of rim 60, therefore, the clothes hanger is strong in practicability.

In some embodiments, the above-mentioned roller mechanism 30 may be configured as shown in fig. 2. Referring to fig. 2, the press roller mechanism 30 includes a slide table 31 and a first telescopic structure 32. The sliding table 31 is arranged on the base 10 in a sliding manner along the vertical direction, and the die roller 33 is rotatably connected with a rotating shaft seat arranged at the bottom end of the sliding table 31. The first telescopic structure 32 is arranged along the vertical direction, the fixed end of the first telescopic structure 32 is fixedly arranged on the machine base 10, and the telescopic end of the first telescopic structure 32 is fixedly connected with the sliding table 31 so as to drive the sliding table 31 to move up and down. The installation to die roller 33 can be guaranteed to slip table 31, can guarantee the stability that die roller 33 removed simultaneously, and first extending structure 32 can guarantee to drive slip table 31 and remove, and the practicality is strong.

The base 10 is provided with a plurality of sliding columns for the sliding of the sliding table 31, which is convenient for the stable movement of the sliding table 31.

It should be noted that the sliding table 31 may have a rectangular parallelepiped shape; in order to ensure the stability of sliding, the sliding columns are preferably provided with four sliding columns which are respectively distributed at four corner points of the sliding table 31.

To ensure control of the downward movement of the slide table 31, the first telescopic structure 32 may be a servo hydraulic cylinder.

In some embodiments, the mold roll 33 may be configured as shown in FIG. 2. Referring to fig. 2, the arrangement of the axis of the die cylinder 33 along the second direction, i.e. the arrangement of the rotation axis of the die cylinder 33 parallel to the axis of the semi-finished rim 60 or the rim 60, ensures the effectiveness of the rim 60 forming work.

In some embodiments, referring to fig. 2-4, the portal screw press for rim molding further comprises a positioning mechanism 40, and the positioning mechanism 40 comprises a pushing assembly 41, a rotating rod 42, a pull rod 43, and a second telescopic structure 44. The two pushing assemblies 41 are arranged, the two pushing assemblies 41 are respectively located on two sides of the sliding table 31 along the first direction and are in sliding connection with the sliding table 31 along the first direction, and the pushing assemblies 41 can position the semi-finished rim 60 product along the second direction before the die roller 33 and the die supporting structure clamp the semi-finished rim 60 product. The rotating rod 42 is rotatably provided on the slide table 31 with an axis provided in the vertical direction, and the rotating rod 42 has two connecting ends. Two pull rods 43 are provided, the two pull rods 43 are respectively arranged corresponding to the two pushing assemblies 41 one by one, one end of each pull rod 43 is hinged with the pushing assembly 41, and the other end is hinged with one connecting end of the rotating rod 42. The second telescopic structure 44 is arranged along the first direction, a fixed end of the second telescopic structure 44 is fixedly arranged on the sliding table 31, and a telescopic end of the second telescopic structure 44 is connected with one of the pushing assemblies 41.

One of the pushing assemblies 41 is driven to move by the second telescopic structure 44, and after the pushing assembly 41 drives the corresponding pull rod 43, the other pushing assembly 41 is driven to move by the rotating rod 42 and the other pull rod 43, so that the two pushing assemblies 41 synchronously move relative to each other or move back to back. The two pushing assemblies 41 move relatively to each other, approach the die roller 33 along the first direction, and correct the rim 60 in the second direction together with the die supporting structure before the die roller 33 and the die supporting structure clamp the semi-finished rim 60, so as to further ensure the quality of the rim 60 after molding.

Wherein, be equipped with on the slip table 31 and supply to push away gliding slide rail 12 of subassembly 41, the both ends of preferred slide rail 12 all stretch out slip table 31, guarantee to push away gliding stability of subassembly 41.

The number of the second telescopic structures 44 may be two, and the two second telescopic structures 44 are spaced along the second direction.

In this embodiment, the bull stick 42 can include swivel ring and fixed rod portion, and the swivel ring rotates and sets up on slip table 31, and fixed rod portion is equipped with two, and the one end of every fixed rod portion links to each other with the swivel ring, and the other end stretches out along the radial of swivel ring, and the contained angle between two fixed rod portions is 180, and the end that stretches out of every fixed rod portion is articulated with pull rod 43 promptly.

In some embodiments, the pushing assembly 41 may be configured as shown in fig. 3 to 4. Referring to fig. 3 to 4, each pushing assembly 41 includes a sliding beam 411, a fixed frame 412, a sliding block 413, a pushing rod 414, a spring 415, a positioning wheel 416, a third telescopic structure 417 and a fourth telescopic structure 418. The sliding beam 411 is arranged along the second direction, the sliding beam 411 is arranged on the sliding rail in a sliding manner, the sliding beam 411 is hinged with the pull rod 43, and the lower end of the sliding beam 411 is provided with a hinged part. The fixing frame 412 is hinged with the hinge part with the hinge axis disposed along the second direction, and the fixing frame 412 has a slide cavity disposed along the second direction. Two sliding blocks 413 are arranged, and the two sliding blocks 413 are arranged in the sliding cavity in a sliding mode. The number of the push rods 414 is two, the two push rods 414 are respectively arranged in one-to-one correspondence with the two sliding blocks 413, each push rod 414 is arranged in the sliding block 413 in a sliding manner, one end of each push rod 414 is provided with a hinged part for rotatably connecting the positioning wheel 416, and the other end of each push rod 414 is provided with a limiting part clamped with the sliding block 413. Two springs 415 are provided, the two springs 415 are in one-to-one correspondence with the two push rods 414, each spring 415 is sleeved on the corresponding push rod 414, and one end of each spring is abutted against the sliding block 413 while the other end of each spring is abutted against the hinge portion. The fixed end of the third telescopic structure 417 is hinged to the sliding beam 411, and the telescopic end of the third telescopic structure 417 is hinged to the fixed frame 412, so that the fixed frame 412 can be adjusted to turn over, and the push rod 414 is radially arranged along the rim 60 supported by the supporting structure. The number of the fourth telescopic structures 418 is two, and the two fourth telescopic structures 418 are both fixed on the fixing frame 412 and respectively connected to the two sliding blocks 413 so as to drive the two sliding blocks 413 to slide relatively or back to back.

Two sliding beams 411 relatively move under the drive of pull rod 43 or second extending structure 44, can drive two fixed frames 412 and be close to rim 60, simultaneously through the drive of third extending structure 417, fixed frame 412 pitch upset to make push rod 414 along the radial setting of rim 60 semi-manufactured goods, and make locating wheel 416 and rim 60 semi-manufactured goods adaptation butt joint, along with fourth extending structure 418 drives two sliders 413 relative movement, two locating wheel 416 correct rim 60 semi-manufactured goods along the second direction. Spring 415 can be compressed after movement of push rod 414 to cushion push rod 414 to prevent rigid contact when positioning wheel 416 contacts rim 60 blank, thereby protecting rim 60 blank.

In this embodiment, the fixing frame 412 may be a rectangular parallelepiped structure, the sliding cavity is a rectangular cavity, the four sidewalls of the fixing frame 412 are respectively provided with a strip opening communicated with the sliding cavity, and the two fourth telescopic structures 418 are connected to the two sliding blocks 413 through the two opposite strip openings, as shown in fig. 4, to ensure the relative movement or the back-to-back movement of the two sliding blocks 413.

In some embodiments, the positioning wheel 416 may be configured as shown in FIG. 5. Referring to fig. 5, the positioning wheel 416 includes a limit disk 4161, an abutment cylinder 4162, a compensation cylinder 4163, and a damping bolt 4164. One plate surface of the limiting circular plate 4161 is coaxially connected with a rotating shaft which can be rotatably connected with the limiting part. The abutting cylinder 4162 is coaxially connected to the other plate surface of the limiting circular plate 4161, a first insertion hole is formed in the end portion of the abutting cylinder 4162 extending out of the limiting circular plate 4161, and a first countersunk threaded hole communicated with the first insertion hole is formed in the side wall of the abutting cylinder 4162. The compensation cylinder 4163 is provided with at least one, the diameter of the compensation cylinder 4163 is equal to that of the abutting cylinder 4162, one end of the compensation cylinder 4163 is provided with an inserting shaft matched with the first inserting hole, the other end of the compensation cylinder 4163 is provided with a second inserting hole, the specification of the second inserting hole is the same as that of the first inserting hole, namely, the caliber and the depth of the second inserting hole are the same as those of the first inserting hole. And a second countersunk threaded hole communicated with the second jack is formed in the side wall of each compensation cylinder 4163. A plurality of damping bolts 4164 are provided, and each damping bolt 4164 corresponds to the first countersunk screw hole and each second countersunk screw hole, and can lock each compensating cylinder 4163 to the abutting cylinder 4162.

Since the widths of the rim 60 in the axial direction are different, the initial position of the sliding block 413 in the sliding cavity can be set according to the actual width of the rim 60, the positioning wheel 416 passes through the limiting circular plate 4161 and the abutting circular column 4162, the limiting circular plate 4161 can be in limiting abutment with two sides of the rim 60 in the axial direction, the abutting circular column 4162 can be in abutment with the outer edge of the rim 60, and the clamping of the two positioning wheels 416 realizes the positioning of the semi-finished product of the rim 60. However, when the rim 60 is wide, in order to prevent the abutment cylinder 4162 from contacting the outer rim of the rim 60 when it is close to the rim 60, the abutment cylinder 4162 may be lengthened by the compensation cylinder 4163 and the damping bolt 4164 to ensure accurate contact with the rim 60. When the rim 60 is small in width, the abutment cylinder 4162 can be shortened by reducing the compensation cylinder 4163 and the damping bolt 4164 to prevent interference when the two positioning wheels 416 move relative to each other.

It should be noted that each insert shaft is provided with an annular groove corresponding to the first threaded hole or the second threaded hole, so as to ensure the stability of the assembly of each compensation cylinder 4163.

In some embodiments, the fourth telescoping structure 418 may be configured as shown in FIG. 4. Referring to fig. 4, the fourth telescopic structure 418 is a servo hydraulic cylinder, and the servo hydraulic cylinder can ensure that the stroke of the two sliding blocks 413 in sliding is controllable, so that the stroke of the two sliding blocks 413 moving relatively or moving back to back can be kept equal, and the accuracy of the rim 60 in positioning along the second direction can be ensured, and the practicability is high.

In some embodiments, the idler mechanism 20 may be configured as shown in fig. 1. Referring to fig. 1, each idler mechanism 20 includes a carriage 21, a fifth telescopic structure 22, and a driver 23. The sliding seat 21 is arranged on the machine base 10 in a sliding mode along the second direction, the die supporting roller 24 is arranged at one end, close to the through cavity 11, of the sliding seat 21 in a rotating mode, and the rotating axis is arranged along the second direction. The fixed end of the fifth telescopic structure 22 is connected to the machine base 10, and the telescopic end of the fifth telescopic structure 22 is connected to the sliding base 21 to drive the sliding base 21 to slide along the second direction. The driver 23 is fixed on the slide base 21 and is in power connection with the die supporting roller 24.

The fifth telescopic structure 22 drives the sliding base 21 to move, so that the die supporting roller 24 can be guaranteed to move into the through cavity 11, and meanwhile, the driver 23 can drive the die supporting roller 24 to rotate, and therefore the spinning forming of the rim 60 is guaranteed.

Wherein, the base 10 is provided with a slideway for the sliding seat 21 to slide.

In this embodiment, the fifth telescopic structure 22 may be a servo hydraulic cylinder.

In some embodiments, referring to fig. 1 to 2, the portal roller press for rim molding further includes a lifting mechanism 50, and the lifting mechanism 50 includes a carrier plate 51, a sixth telescopic structure 52, and a limit roller 53. The carrier plate 51 is horizontally disposed in the through cavity 11 and located below the mold supporting roller 24. The number of the sixth telescopic structures 52 is at least two, each sixth telescopic structure 52 is uniformly distributed at the bottom of the through cavity 11 and is arranged along the vertical direction, the fixed end of each sixth telescopic structure 52 is fixedly arranged on the machine base 10, and the telescopic end is connected with the support plate 51 to drive the support plate 51 to move up and down. The number of the limiting rollers 53 is two, the two limiting rollers 53 are arranged at intervals along the first direction, each limiting roller 53 is arranged along the second direction and is rotatably arranged above the carrier plate 51, and a supporting space for placing a semi-finished product of the rim 60 or a finished product of the rim 60 is formed between the two limiting rollers 53.

After the carrier plate 51 is driven to rise by the sixth telescopic structure 52, the semi-finished rim 60 in the through cavity 11 can be lifted, so that the two die supporting rollers 24 can be ensured to extend into the semi-finished rim 60. And the arrangement of two spacing rollers 53 can guarantee the bearing of the rim 60 semi-finished product, and guarantee the positioning of the rim 60 semi-finished product in the first direction.

In this embodiment, the sixth telescoping structure 52 may be a hydraulic cylinder.

The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims

1. The gate-type roller-rotating press machine for rim molding is characterized by comprising a machine base, a carrier roller mechanism, a press roller mechanism and a positioning mechanism; the base is provided with a through cavity which is communicated along the horizontal direction; setting the through direction of the through cavity as a first direction, and setting the horizontal direction vertical to the first direction as a second direction; the two carrier roller mechanisms are arranged on the base and are respectively arranged on two sides of the through cavity along the second direction, each carrier roller mechanism is provided with a mold supporting roller capable of moving along the second direction, and the two mold supporting rollers relatively move to the through cavity to jointly form a mold supporting structure for sleeving a semi-finished rim product; the pressing roller mechanism is positioned above the carrier roller mechanism, a die roller capable of moving along the vertical direction is arranged on the pressing roller mechanism, the die roller descends, clamps the semi-finished rim product together with the die supporting roller, and performs extrusion forming on the rim along with the rotation of the die supporting structure;

each carrier roller mechanism comprises a sliding seat, a fifth telescopic structure and a driver; the sliding seat is arranged on the machine base in a sliding mode along the second direction, the die supporting roller is rotatably arranged at one end, close to the through cavity, of the sliding seat, and the rotating axis is arranged along the second direction; the fixed end of the fifth telescopic structure is connected with the base, and the telescopic end of the fifth telescopic structure is connected with the sliding seat so as to drive the sliding seat to slide along the second direction; the driver is fixedly arranged on the sliding seat and is in power connection with the die supporting roller; the base is provided with a slideway for the sliding seat to slide;

the compression roller mechanism comprises a sliding table and a first telescopic structure; the sliding table is arranged on the base in a sliding mode along the vertical direction, and the die pressing roller is rotatably connected with a rotating shaft seat arranged at the bottom end of the sliding table; the first telescopic structure is arranged along the vertical direction, the fixed end of the first telescopic structure is fixedly arranged on the base, and the telescopic end of the first telescopic structure is fixedly connected with the sliding table so as to drive the sliding table to move up and down; a plurality of sliding columns for the sliding table to slide are arranged on the base;

the positioning mechanism comprises a pushing assembly, a rotating rod, a pull rod and a second telescopic structure; the two pushing assemblies are respectively positioned on two sides of the sliding table along the first direction and are in sliding connection with the sliding table along the first direction, and the pushing assemblies are used for positioning the semi-finished rim product along the second direction before the die pressing roller and the die supporting structure clamp the semi-finished rim product; the rotating rod is rotatably arranged on the sliding table, the axis of the rotating rod is arranged along the vertical direction, and the rotating rod is provided with two connecting ends; the two pull rods are respectively arranged in one-to-one correspondence with the two pushing assemblies, one end of each pull rod is hinged with the pushing assembly, and the other end of each pull rod is hinged with one connecting end of the rotating rod; the second telescopic structure is arranged along the first direction, the fixed end of the second telescopic structure is fixedly arranged on the sliding table, and the telescopic end of the second telescopic structure is connected with one of the pushing assemblies; a sliding rail for the pushing assembly to slide is arranged on the sliding table; each pushing assembly comprises a sliding beam, a fixed frame, a sliding block, a push rod, a spring, a positioning wheel, a third telescopic structure and a fourth telescopic structure; the sliding beam is arranged along the second direction, the sliding beam is arranged on the sliding rail in a sliding mode, the sliding beam is hinged to the pull rod, and a hinged portion is arranged at the lower end of the sliding beam; the fixed frame is hinged with the hinged part, the hinge axis is arranged along the second direction, and the fixed frame is provided with a sliding cavity arranged along the second direction; the number of the sliding blocks is two, and the two sliding blocks are arranged in the sliding cavity in a sliding mode; the two push rods are respectively arranged in one-to-one correspondence with the two sliding blocks, each push rod is arranged in the sliding block in a sliding manner, one end of each push rod is provided with a hinge part for the rotary connection of the positioning wheel, and the other end of each push rod is provided with a limiting part clamped with the sliding block; the two springs are arranged in one-to-one correspondence with the two push rods, each spring is sleeved on the corresponding push rod, one end of each spring is abutted against the corresponding slide block, and the other end of each spring is abutted against the hinge part; the fixed end of the third telescopic structure is hinged with the sliding beam, and the telescopic end of the third telescopic structure is hinged with the fixed frame and used for adjusting the fixed frame to turn over so that the push rod is arranged along the radial direction of the rim supported by the die supporting structure; two fourth telescopic structures are arranged, and are fixedly arranged on the fixed frame and respectively connected with the two sliding blocks so as to drive the two sliding blocks to slide relatively or oppositely; the positioning wheel comprises a limiting circular plate, an abutting cylinder, a compensating cylinder and a damping bolt; one plate surface of the limiting circular plate is coaxially connected with a rotating shaft which is used for being rotationally connected with the limiting part; the abutting cylinder is coaxially connected to the other plate surface of the limiting circular plate, a first inserting hole is formed in the end part, extending out of the limiting circular plate, of the abutting cylinder, and a first countersunk head threaded hole communicated with the inserting hole is formed in the side wall of the abutting cylinder; the diameter of the compensation cylinder is equal to that of the abutting cylinder, one end of the compensation cylinder is provided with an insertion shaft matched with the first insertion hole, the other end of the compensation cylinder is provided with a second insertion hole, the specification of the second insertion hole is the same as that of the first insertion hole, and the side wall of each compensation cylinder is provided with a second countersunk threaded hole communicated with the second insertion hole; the damping bolts are multiple, correspond to the first countersunk head threaded holes and the second countersunk head threaded holes and are used for locking the compensation cylinders on the abutting cylinders.

2. The portal screw press for rim molding according to claim 1, wherein an axis of the die cylinder is arranged along the second direction.

3. The portal roll press for rim molding according to claim 1, wherein the fourth telescopic structure is a servo hydraulic cylinder.

4. The portal roller press for rim molding according to claim 1, further comprising a lifting mechanism, wherein the lifting mechanism comprises a carrier plate, a sixth telescopic structure and a limiting roller; the carrier plate is horizontally arranged in the through cavity and is positioned below the die supporting roller; the number of the sixth telescopic structures is at least two, the sixth telescopic structures are uniformly distributed at the bottom of the through cavity and are arranged along the vertical direction, the fixed end of each sixth telescopic structure is fixedly arranged on the machine base, and the telescopic end is connected with the carrier plate so as to drive the carrier plate to move up and down; the limiting rollers are arranged in two, the two limiting rollers are arranged in the first direction at intervals, each limiting roller is arranged in the second direction and is rotatably arranged above the carrier plate, and a supporting space for placing a semi-finished rim product or a finished rim product is formed between the two limiting rollers.