CN212312830U - Three-drum forming machine - Google Patents

Abstract

The utility model discloses a three-drum forming machine, which comprises a machine body, a forming drum, a tire body cylinder transfer ring, a right preset ring and a tire bead preset device; the tire body cylinder transfer ring comprises a tire side expansion ring, a left steel ring, a middle ring and a right steel ring and is used for transferring the tire body cylinder and the tire bead; the right preset ring is integrated with a composite piece sewing device which is used for transferring the picked right tire bead to the right steel ring and sewing and attaching the composite piece on the tire body drum; the tire bead presetting device comprises two collapsible clamping mechanisms for supporting a left tire bead and a right tire bead, and is used for transferring the left tire bead to a left steel ring and transferring the right tire bead to a right presetting ring. The utility model provides a tire bead upper ring occupy the problem of takt time, adopt the method of time overall planning, optimized the beat step, reduced single child cycle time, help improving production efficiency.

Description

Three-drum forming machine

Technical Field

The utility model belongs to the technical field of rubber machinery and specifically relates to a three-drum forming machine.

Background

In the continuous and continuous development of the expressway and the transportation industry in China, the all-steel truck radial tire forming machine is greatly developed as one of the most important devices for manufacturing all-steel truck radial tires. The equipment used in the market at present is a two-drum, three-drum and four-drum forming machine. The development of the two-drum forming machine is stopped due to low efficiency, and the four-drum forming machine has high efficiency but the price is multiple times of that of the three-drum forming machine. Although the three-drum forming machine breaks through in the aspects of production quality and efficiency at present, compared with a four-drum forming machine, the production efficiency is still to be further improved in the degree of automation compared with a semi-steel forming machine. Therefore, the forming process and the forming equipment of the all-steel radial truck tire must be improved and innovated greatly, and the development of the high-efficiency three-drum forming machine with high production efficiency, good formed tire blank quality, high automation degree and excellent cost performance becomes the urgent need of the current market.

A one-step forming machine for an all-steel-wire truck radial tire for forming a radial tire in rubber industrial machinery mainly comprises the following six parts: the tire-unloading system comprises a molding system, a feeding system, a workpiece-making conveying system, a calibration system, a tire-unloading system and an operating system. The tire bead is an important component of an all-steel radial tire, and one all-steel radial tire comprises a left tire bead and a right tire bead (steel wire ring). On an all-steel radial tire three-drum forming machine, two feeding modes are provided for tire beads of the tire. One of them is that the tire bead preselector is positioned at two sides of the tire body drum, before the composite member is attached, the tire bead is manually placed on the tire bead preselector at two ends of the tire body drum, and the tire bead is taken when the tire body drum is taken by the tire body drum transfer ring and is transferred onto the forming drum. The other mode is that the tire bead pre-setting device is positioned at the outer side of the tire body cylinder transfer ring, the tire bead is manually placed on the external tire bead pre-setting device, the tire bead is automatically transferred to the tire body cylinder transfer ring by the tire bead pre-setting device, the tire body cylinder transfer ring enters a tire body drum station before the cushion rubber is attached, the tire body cylinder is opened to be flat and wide, the tire body cylinder is taken after the cushion rubber is attached, and the tire body cylinder and the tire bead are transferred to the forming drum by the tire body cylinder transfer ring.

For the two modes, the first mode can keep the intermediate ring of the tire body cylinder transfer ring, so that the tire body cylinder transfer is more reliable and has wider application, but because the beat time occupied by manual operation is about 7s, the requirements on the efficiency of the tire building machine are higher and higher, and the market technical requirements that the single tire cycle time is shorter and shorter are not satisfied. In the second mode, because the tire bead is arranged on the outer side of the tire body cylinder transfer ring by using the spare time, the takt time is saved, and the efficiency target is obviously improved; however, the tire bead transfer scheme requires that the tire body cylinder transfer ring has no intermediate ring or only one lower magnet arc plate, so that the tire body cylinder is easy to have no magnet adsorption in the tire body cylinder transfer process, and can collapse due to gravity, and particularly, the tire bead transfer scheme is easy to cause poor tire body cylinder transfer, poor tire dynamic balance data and other tire quality problems under the working conditions of large-size tires or long waiting time of the tire body cylinder carried by the tire body cylinder transfer ring.

The utility model discloses the problem that will solve lies in: the layout of each system is arranged more reasonably, a time overall method is adopted, the beat step sequence is optimized, and the processes of the fitting of the tire body cylinder assembly, the fitting of the tire bead upper ring, the fitting of the belted layer composite and the like are carried out simultaneously, so that the production process is simplified, the single tire cycle time is shortened, and the participation of people is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to remedy prior art's weak point, provide a can optimize beat preface and help improving production efficiency's three drum make-up machines.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a three-drum forming machine comprises a machine body, a forming drum, a tire body cylinder transfer ring, a right preset ring and a tire bead preset device; the tire body cylinder transfer ring comprises a tire side expansion ring, a left steel ring, a middle ring and a right steel ring, is slidably mounted on the lathe bed and positioned between the forming drum and the tire body drum, and is used for transferring the tire body cylinder, the left tire bead and the right tire bead; the right preset ring is integrated with a composite sewing device, is arranged on the lathe bed and is positioned at one end of the tire body cylinder transfer ring close to the tire body drum, and is used for transferring the picked right tire bead to the right steel ring and sewing and attaching the composite on the tire body drum; the tire bead presetting device comprises two expansion and contraction clamping mechanisms for supporting the left tire bead and the right tire bead, is arranged above the lathe bed and between the forming drum and the tire body drum, and is used for transferring the left tire bead to the left steel ring and transferring the right tire bead to the right presetting ring.

Further, the composite part sewing device comprises a sewing cylinder, a mounting plate, a movable plate and a sewing pressure roller assembly, wherein the sewing cylinder is fixed on the right preset ring through the mounting plate, the output end of the sewing cylinder is fixedly connected to the movable plate, the movable plate is in sliding connection with the mounting plate through the matching of a sliding rail and a fixed sliding block, and the sewing pressure roller assembly is swingably hinged to the lower end of the movable plate and faces towards the inner side of the right preset ring; the moving plate is moved by the driving of the sewing cylinder, so that the sewing press roller assembly can be driven to press on the composite member which is completely attached to the tire body drum, and the composite member is sewn under the matching of the transverse movement of the right preset ring and the rotation of the tire body drum.

Further, the tire bead presetting device further comprises a fixing frame body and a driving mechanism, wherein the expansion and contraction clamping mechanisms are arranged in a bilateral symmetry mode and fixed to the fixed frame body in a sliding mode through linear guide rails, the driving mechanism is fixed to the fixing frame body and used for driving the expansion and contraction clamping mechanisms to move longitudinally along the linear guide rails on the fixing frame body, the expansion and contraction clamping mechanisms can be arranged on the left side and can be located at the same axial position or on the right side with the left steel ring, and the expansion and contraction clamping mechanisms can be arranged on the right side and can be located at the same axial position with the right presetting ring.

The utility model has the advantages that: the utility model provides a pair of three drum make-up machines have compared in the three drum make-up machines of tradition and have changed the overall arrangement mode, have solved the tire bead and have enclosed the problem that occupies takt time, adopt the method of time overall planning, have optimized the takt preface, have reduced single child cycle time, have improved production efficiency.

Drawings

In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings.

Fig. 1 is a layout schematic diagram of the three-drum forming machine of the present invention;

FIG. 2 is a schematic axial view of the front end of the three-drum forming machine of the present invention;

FIG. 3 is a schematic structural view of a composite sewing device according to the present invention;

fig. 4 is a schematic perspective view of the tire bead presetting device of the present invention;

fig. 5 is a schematic structural view of the middle frame body precision adjusting mechanism of the present invention;

fig. 6 is a schematic sectional view of the sliding plate of the present invention;

fig. 7 is a schematic view of an angle of the clamping mechanism for expanding and contracting in the present invention;

fig. 8 is a schematic perspective view of another angle of the middle-expansion clamping mechanism of the present invention;

FIG. 9 is a schematic view of a sectional structure of the middle support roll of the present invention;

FIG. 10 is a schematic structural view of the tire bead presetting device of the present invention used in conjunction with a tire body cylinder transfer ring;

fig. 11 is the utility model discloses well tire bead preset device and the right side preset the structural schematic diagram that the ring cooperation was used.

Wherein, 1-a forming drum chassis; 2-a belt drum; 3-auxiliary engine feeding system; 4-tread transfer ring; 5-a forming drum; 6-a tire unloading device; 7-a lathe bed; 8-tire bead presetting device, 801-fixed frame body, 8011-upright post, 8012-longitudinal beam, 802-sliding plate, 8021-first flat plate, 8022-second flat plate, 8023-sliding plate precision adjusting mechanism, 80231-L-shaped plate, 80232-jackscrew, 8024-mounting bolt, 8025-big circular hole, 8026-clamping block, 8027-sliding block, 8028-guide rail clamp, 803-moving arm, 804-expansion and contraction clamping mechanism, 8041-driving cylinder, 8042-swing arm, 8043-rotating shaft, 8044-base disc, 8045-rotating disc, 8046-first connecting rod, 8047-second connecting rod, 8048-supporting roller, 80481-486, 80482-magnet, 80483-eccentric shaft, 80484-locking nut, 80485-bearing, 8045-shaft sleeve roller body, 486-roller body, 80487-spring, 80488-flanging, 8049-specification adjusting mechanism, 80491-bracket, 80492-trapezoidal screw rod, 80493-slider, 80494-hand wheel, 805-driving mechanism, 8051-motor, 8052-driving belt, 806-frame precision adjusting mechanism, 8061-supporting plate, 8062-locking bolt, 8063-fixing plate, 8064-adjusting bolt and 8065-slotted hole; 9-a carcass barrel transfer ring, 901-a sidewall expansion ring, 902-a left steel ring, 903-an intermediate ring and 904-a right steel ring; 10-right preset ring; 11-a carcass drum; 12-carcass drum chassis; 13-a carcass feeding system; 14-composite stitching device, 1401-stitching cylinder, 1402-mounting plate, 1403-moving plate, 1404-stitching roller assembly, 1405-sliding rail, 1406-fixed slide.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

In the description of the present invention, the terms "inside", "outside", "longitudinal", "transverse", "up", "down", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention rather than requiring the present invention to be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The embodiments of the present invention will be described in further detail with reference to the accompanying drawings:

referring to fig. 1 and 2, an embodiment of the present invention provides a three-drum forming machine, which mainly includes a forming drum chassis 1, a belt drum 2, an auxiliary feeding system 3, a tread transfer ring 4, a forming drum 5, a tire unloading device 6, a bed body 7, a tire bead presetting device 8, a tire tube transfer ring 9, a right presetting ring 10, a tire drum 11, a tire drum chassis 12, and a tire feeding system 13. Wherein, the auxiliary machine feeding system 3 is used for feeding the belt drum 2; a carcass serviser system 13 for supplying the carcass drum 11; the forming drum chassis 1 and the carcass drum chassis 12 are arranged at two ends of the lathe bed 7; the forming drum chassis 1 is used for driving the belt bundle drum 2 and the forming drum 5 to rotate so as to complete the processes of belt bundle layer composite fitting, tread forming, tire forming and the like; the carcass drum chassis 12 is used for driving the carcass drum 11 to rotate so as to complete the processes of forming a carcass drum and the like; the tread transfer ring 4 is mounted slidingly on linear guides on the bed 7 and is intended to transfer the tread from the belt drum 2 to the building drum 5; the tire bead presetting device 8 is longitudinally arranged on the lathe bed 7 and used for conveying the tire bead to the tire body cylinder transfer ring 9 and the right presetting ring 10; the carcass tube transfer ring 9 is slidably mounted on a linear guide rail on the bed 7 and is used for transferring the carcass tube from the carcass drum 11 to the building drum 5 and simultaneously transferring the left and right beads to the building drum 5; the right preset ring 10 is slidably arranged on a linear guide rail on the machine body 7 and can transfer the tire bead taken by the right preset ring to the tire body cylinder transfer ring 9, in addition, a composite piece sewing device 14 is also arranged on the right preset ring 10, and the composite piece attached to the tire body drum 11 can be sewn through the movement of the right preset ring 10 and the composite piece sewing device 14; the tire removing device 6 is used for removing the formed tire.

As a further aspect of the present invention: as shown in fig. 2 and 10, the carcass tube transfer ring 9 includes a sidewall expanding ring 901, a left bead ring 902, an intermediate ring 903, and a right bead ring 904. In the carcass tube transfer ring 9 of this embodiment, an intermediate ring 903 is retained, and the intermediate ring 903 comprises 10 sets of arc plates with magnets, which can be clamped on the outer circumferential wall of the middle part of the carcass tube for maintaining the transfer accuracy of the carcass tube. In order to realize external looping of a tire bead, namely, a tire bead presetting device for feeding the tire bead is positioned at the outer side of a tire body cylinder transfer ring in the prior art, because a left tire bead and a right tire bead are pre-transferred to the tire body cylinder transfer ring by the tire bead presetting device, the tire body cylinder transfer ring needs to enter a tire body drum before cushion rubber is attached (if not, the right tire bead is clamped due to the height of the cushion rubber and cannot move to the right side of the tire body cylinder), and an intermediate ring just covers the tire body drum, so that the intermediate ring does not influence the attachment of the cushion rubber, the intermediate ring has to be cancelled or only one arc plate at the bottom is reserved, the risk brought by this is that the precision of the tire body cylinder transfer cannot be ensured, the tire body cylinder can collapse due to gravity, the dynamic balance index of the tire cannot be met, and the quality. In addition, the left steel ring 902, the middle ring 903 and the right steel ring 904 are connected together to obtain the tire body cylinder, the left steel ring 902 and the right steel ring 904 can be used for clamping the left tire bead and the right tire bead respectively, and the connection process of the tire body cylinder transfer ring 9 is as follows: firstly, a left tire bead transmitted by the tire bead presetting device 8 is received by the left steel ring 902, then the tire body cylinder transmission ring 9 carries (adsorbs) the left tire bead to receive the tire body cylinder, when the tire body cylinder transmission ring 9 reaches the station of the tire body drum 11, the right tire bead transmitted by the right presetting ring 10 is received by the right steel ring 904, then the tire body cylinder is received, and finally the tire body cylinder transmission ring 9 carries the tire body cylinder and the left and right tire beads to be conveyed to the forming drum 5 from the tire body drum 11.

As a further aspect of the present invention: as shown in fig. 1, 2 and 11, the right pre-setting ring 10 is slidably mounted on a linear guide rail on the bed 7 and is located at one end of the carcass drum transfer ring 9 close to the carcass drum 11 (the right pre-setting ring 10 is located between the carcass drum transfer ring 9 and the carcass drum 11 in an initial state, i.e., at the left end of the carcass drum 11), and the right pre-setting ring 10 can pass through the carcass drum 11 and move to the right end of the carcass drum 11. The right preset ring 10 is mainly used for receiving the right tire bead transferred by the tire bead preset device 8 and transferring the right tire bead to a right steel ring 904 in the tire body cylinder transfer ring 9, and the specific process is as follows: after the tire body drum transfer ring 9 carries the tire body drum and the left and right tire beads to move to the station of the forming drum 5, the right preset ring 10 moves to the station of the tire bead presetting device 8 and takes the right tire bead transferred by the tire bead presetting device 8, the taken right tire bead is used for preparing for the next operation, and the right tire bead can be manually installed on the right preset ring 10 during the first operation.

Further, as shown in fig. 3 and 11, the right pre-ring 10 is further integrated with a composite sewing device 14, and the composite sewing device 14 includes a sewing cylinder 1401, a mounting plate 1402, a moving plate 1403 and a sewing pressure roller assembly 1404. The sewing cylinder 1401 is fixed on the mounting plate 1402, the mounting plate 1402 is fixed at the upper end of the right preset ring 10, the output end (cylinder rod) of the sewing cylinder 1401 penetrates through the mounting plate 1402 and is fixedly connected to the moving plate 1403, the moving plate 1403 is fixedly connected with a slide rail 1405 (linear guide rail), the mounting plate 1402 is fixedly connected with a fixed slide block 1406, the slide rail 1405 and the fixed slide block 1406 are matched for use, so that the moving plate 1403 and the mounting plate 1402 are slidably connected together, and the sewing pressure roller assembly 1404 is swingably hinged at the lower end of the moving plate 1403 and faces to the inner side of the; the sliding rail 1405 moves along the fixed sliding block 1406 by the driving of the sewing cylinder 1401, and then the moving plate 1403 and the sewing roller assembly 1404 are driven to perform telescopic motion, when the sewing cylinder 1401 extends outwards, the sewing roller assembly 1404 can be driven to press on the half part of the composite piece attached to the carcass drum 11, and the composite piece can be sewn under the matching of the transverse movement of the right preset ring 10 and the rotation of the carcass drum 11. The composite stitching device 14 is used for stitching the composite applied to the carcass drum 11, and comprises the following steps: the right preset ring 10 waits at an initial position, when the composite member transferred by the tire body feeding system 13 is completely attached to the tire body drum 11, the right preset ring 10 moves along a linear guide rail on the machine body 7 and moves from the left end to the right end of the tire body drum 11, the composite member sewing device 14 on the right preset ring 10 sews the composite member on the tire body drum 11 in the moving process, in the sewing process, the tire body drum 11 slowly rotates to realize the angled sewing of the composite member, and after the sewing is completed, the right preset ring 10 moves to the right end of the tire body drum 11 to wait for the tire body drum transfer ring 9 to take the tire body drum and transfer the right tire bead to the right steel ring 904.

As a further aspect of the present invention: as shown in fig. 4 to 11, the bead presetting device 8 mainly includes a fixed frame 801 that spans over the bed 7, a slide plate 802, a moving arm 803, an expansion and contraction gripping mechanism 804, and a driving mechanism 805. Wherein, the sliding plate 802 is connected with the linear guide rail fixed on the fixed frame body 801 in a sliding way; the two moving arms 803 are symmetrically arranged at two sides of the lower end of the sliding plate 802, the preset distance between the two moving arms 803 is larger than the thickness of the middle ring 903 in the tire body cylinder transfer ring 9 which is slidably arranged on the machine bed 7, particularly, in the process of transferring the left tire bead, the two moving arms 803 are moved to the position which is coaxial with the tire body cylinder transfer ring 9, and the middle ring 903 is just between the two moving arms 803, so the preset distance between the two moving arms 803 ensures that the middle ring 903 has enough space so as to avoid the two moving arms 803 from interfering with the middle ring 903 in the process of transferring the left tire bead; the two clamping mechanisms 804 are used for supporting the left tire bead and the right tire bead respectively, and the two clamping mechanisms 804 are arranged on the outer sides of the two moving arms 803 in a one-to-one correspondence manner; the driving mechanism 805 is fixed on the fixing frame body 801 and is used for driving the sliding plate 802 to move longitudinally along the linear guide rail on the fixing frame body 801, so that the left expansion and contraction clamping mechanism 804 can be in a coaxial position with the left steel ring 902 on the carcass tube transfer ring 9 or the right expansion and contraction clamping mechanism 804 can be in a coaxial position with the right preset ring 10 slidably mounted on the lathe bed 7, and therefore the left tire bead can be smoothly transferred onto the left steel ring 902 or the right tire bead can be smoothly transferred onto the right preset ring 10.

Furthermore, as shown in fig. 4, the fixing frame 801 includes two upright columns 8011 and a longitudinal beam 8012, the longitudinal beam 8012 is horizontally installed between the tops of the two upright columns 8011, two ends of the longitudinal beam 8012 are respectively connected to the two upright columns 8011 through a frame accuracy adjusting mechanism 806, and two linear guide rails are symmetrically formed at the lower end of the longitudinal beam 8012 and are used in cooperation with the sliding plate 802. The two frame accuracy adjusting mechanisms 806 are identical and symmetrically arranged, and now the structure of one frame accuracy adjusting mechanism 806 is described in detail by taking as an example, as shown in fig. 5, the frame accuracy adjusting mechanism 806 includes a supporting plate 8061, two locking bolts 8062, a fixing plate 8063, and an adjusting bolt 8064; the supporting plate 8061 is fixedly connected with the end of the longitudinal beam 8012, two long circular holes 8065 are formed in the side wall of the supporting plate 8061, each locking bolt 8062 penetrates through a corresponding long circular hole 8065 to be locked on the upright post 8011 so as to fix the longitudinal beam 8012 and the upright post 8011, the fixing plate 8063 is fixedly connected with the side wall of the upright post 8011, the adjusting bolt 8064 is vertically and threadedly connected to the fixing plate 8063, the upper end of the adjusting bolt 8064 abuts against the lower end of the supporting plate 8061, the position of the supporting plate 8061 can be adjusted by rotating the adjusting bolt 8064 in a state that the two locking bolts 8062 are unlocked, then parallelism adjustment of a linear guide rail on the longitudinal beam 8012 and a linear guide rail on the bed 7 is achieved, and after adjustment, the longitudinal beam 8012 and the upright post 8011 are locked by the two. In addition, the outside of the fixing frame body 801 is coated by an appearance housing assembly, so that the appearance of the equipment is optimized, parts such as the electromagnetic valve and the electric component are not exposed, the equipment meets the functionality, and the appearance is considered at the same time.

Further, as shown in fig. 4, the driving mechanism 805 includes a motor 8051 and a transmission belt 8052, the motor 8051 is fixed on the longitudinal beam 8012, the transmission belt 8052 is longitudinally installed on the longitudinal beam 8012 through two pulleys, an upper end of the sliding plate 802 is fixedly connected to the transmission belt 8052 through a clamping block 8026, and the motor 8051 drives the transmission belt 8052 to rotate, so as to drive the sliding plate 802 to longitudinally move along the linear guide rail on the longitudinal beam 8012.

Further, as shown in fig. 4 and 6, the sliding plate 802 includes a first plate 8021, a second plate 8022, and a sliding plate accuracy adjustment mechanism 8023. The first flat plate 8021 is stacked on the upper end of the second flat plate 8022 and fixed by the mounting bolt 8024, the first flat plate 8021 is provided with a large circular hole 8025, the diameter of the large circular hole 8025 is larger than the diameter of the screw rod of the mounting bolt 8024 and smaller than the diameter of the nut of the mounting bolt 8024, and the mounting bolt 8024 can movably pass through the large circular hole 8025 and be locked on the second flat plate 8022 so as to fix the first flat plate 8021 and the second flat plate 8022; a clamping block 8026 for connecting with a transmission belt 8052 and a sliding block 8027 for matching with a linear guide rail on the longitudinal beam 8012 are fixedly connected to the upper end of the first flat plate 8021; two moving arms 803 are symmetrically fixed to the lower end of the second plate 8022.

Further, as shown in fig. 6, the sliding plate precision adjusting mechanism 8023 includes an inverted L-shaped plate 80231 and a top wire 80232, the upper end of the L-shaped plate 80231 is fixed to the outer edge of the first flat plate 8021 by bolts, the top wire 80232 is connected to the lower end of the L-shaped plate 80231 through a thread, and the end of the top wire 80232 abuts against the outer edge of the second flat plate 8022; the sliding plate precision adjusting mechanisms 8023 are multiple and distributed around the first plate 8021 and the second plate 8022, specifically, two sliding plate precision adjusting mechanisms 8023 can be respectively arranged on two longitudinal side edges, and one sliding plate precision adjusting mechanism 8023 can be respectively arranged on two transverse side edges; in the state that the mounting bolt 8024 is unlocked, the position relation between the first flat plate 8021 and the second flat plate 8022 can be changed by adjusting the jackscrews 80232 in a mutually matched manner, that is, the position relation between the second flat plate 8022 and the first flat plate 8021 can be adjusted, and further the position precision of the two moving arms 803 can be adjusted, so that the coaxiality of the two collapsible clamping mechanisms 804 with the carcass drum transfer ring 9 and the right preset ring 10 can be ensured. In addition, the second plate 8022 can be divided into two parts, which are separately connected to the first plate 8021 and are also separately connected to one moving arm 803, and each part can be separately adjusted by a plurality of sliding plate precision adjusting mechanisms 8023, so that the two moving arms 803 can be separately adjusted, and the coaxiality between the two moving arms 803 can be adjusted.

Further, as shown in fig. 4 and 6, a rail clamp 8028 is further fixed to the first plate 8021, and the rail clamp 8028 is used in cooperation with a linear rail on the longitudinal beam 8012 to clamp the linear rail on the longitudinal beam 8012 when the collapsible clamping mechanism 804 reaches the automatic looping station, so as to prevent the position of the sliding plate 802 from changing. A limit switch is mounted on the longitudinal beam 8012, the limit switch is used in cooperation with the sliding plate 802, when the sliding plate 802 moves in place, the limit switch sends a signal to a control device of the system, and the control device of the system controls the rail clamp 8028 to move and clamp the linear rail on the longitudinal beam 8012.

Further, as shown in fig. 4, 7 and 8, the two collapsible clamping mechanisms 804 are identical and symmetrically arranged, and now the structure of one collapsible clamping mechanism 804 is described in detail by taking as an example, the collapsible clamping mechanism 804 includes a driving cylinder 8041, a swing arm 8042, a rotating shaft 8043, a base plate 8044, a rotating plate 8045, a first connecting rod 8046, a second connecting rod 8047 and a supporting roller 8048. The cylinder body of the driving cylinder 8041 is fixed on a cylinder mounting seat, and the cylinder mounting seat is connected to the moving arm 803; the first end of the swing arm 8042 is hinged with the output end of the driving cylinder 8041, and the second end is fixedly connected to the rotating shaft 8043; a rotating shaft 8043 is rotatably mounted on the lower end of the moving arm 803; the base plate 8044 is coaxially sleeved on the rotating shaft 8043 and is fixedly connected with the lower end of the moving arm 803, and preferably, six connecting ends are uniformly distributed on the base plate 8044 in the circumferential direction so as to be used for matching with the second connecting rod 8047; the rotating disc 8045 is coaxially and fixedly connected with the rotating shaft 8043; the number of the first connecting rods 8046 and the number of the second connecting rods 8047 are consistent, preferably, six, and the first connecting rods 8046 and the second connecting rods 8047 are matched with each other in a one-to-one correspondence manner and are uniformly distributed around the circumference of the rotating shaft 8043; the first end of each first connecting rod 8046 is hinged with the rotating disc 8045, and the second end is hinged with the middle part of a second connecting rod 8047; the first end of each second connecting rod 8047 is hinged to a connecting end of the base plate 8044, and the second end is connected to a supporting roller 8048. The output end of the driving cylinder 8041 performs telescopic action, so as to drive the swing arm 8042 to drive the rotating shaft 8043 to rotate, the rotating disc 8045 rotates along with the rotating shaft 8043, and further drive the first connecting rod 8046 to drive the second connecting rod 8047 to swing around a hinge point between the connecting end of the first connecting rod 8046 and the connecting end of the base disc 8044, so as to change the distance between the supporting roller 8048 and the rotating shaft 8043, and realize the expansion and contraction action of the expansion and contraction clamping mechanism 804.

Further, as shown in fig. 7 and 8, a specification adjusting mechanism 8049 is further disposed between each cylinder mounting seat and the corresponding moving arm 803. Two specification adjusting mechanisms 8049 in the two collapsible clamping mechanisms 804 are identical in structure and are symmetrically arranged, and now the structure of one specification adjusting mechanism 8049 is described in detail by taking as an example, the specification adjusting mechanism 8049 comprises a bracket 80491, a trapezoidal lead screw 80492, a slider 80493 and a hand wheel 80494. The bracket 80491 is fixed on the moving arm 803, the trapezoidal lead screw 80492 is vertically and rotatably mounted on the bracket 80491, the slider 80493 is in transmission connection with the trapezoidal lead screw 80492, the slider 80493 is in vertical sliding connection with a linear guide rail fixed on the bracket 80491, the slider 80493 is also fixedly connected with the cylinder mounting seat, and the hand wheel 80494 is fixedly connected to the end of the trapezoidal lead screw 80492 and used for driving the trapezoidal lead screw 80492 to rotate; the sliding block 80493 can be driven to carry the cylinder mounting seat to move up and down along the linear guide rail on the support 80491 by rotating the hand wheel 80494, so that the initial position of the driving cylinder 8041 is changed, the expansion and contraction diameter of the expansion and contraction clamping mechanism 804 is changed, clamping of the tire beads of different specifications and inch grades is realized, and full-stroke coverage can be realized without replacing tools. In addition, the trapezoidal lead screw 80492 has a self-locking function, and the position is self-locked after the size adjustment is finished.

Further, as shown in fig. 9, the support roller 8048 includes a roller body 80481, a magnet 80482, an eccentric shaft 80483, a lock nut 80484, a bearing 80485, a shaft bushing 80486, and a spring 80487. The end part of the roller body 80481, which is close to the second connecting rod 8047, is provided with a flange 80488, the flange 80488 is used for limiting the tire bead, the flange 80488 does not need to be designed and installed on all the roller bodies 80481, and the plurality of roller bodies 80481 can be arranged at intervals; the magnets 80482 are uniformly embedded on the flange 80488 in the circumferential direction, and the magnets 80482 are used for adsorbing the tire bead; the eccentric shaft 80483 comprises a large-diameter shaft and a small-diameter shaft, a limit cap is fixedly connected to the first end of the large-diameter shaft, the second end of the large-diameter shaft is eccentrically connected with the first end of the small-diameter shaft, external threads are formed on the outer wall of the second end of the small-diameter shaft and matched with the locking nut 80484 for use, a mounting hole is formed in the second connecting rod 8047, and the small-diameter shaft penetrates through the mounting hole and is locked by the second end of the large-diameter shaft and the locking nut 80484; the bearing 80485 is installed between the roller body 80481 and the shaft sleeve 80486, specifically, a stepped hole is formed inside the roller body 80481, the outer ring of the bearing 80485 is placed into the stepped hole and locked by a large snap ring, a step is formed on the outer wall of the shaft sleeve 80486, the inner ring of the bearing 80485 is sleeved on the outer wall of the shaft sleeve 80486 and pressed against the step, and then locked by a small snap ring; the shaft sleeve 80486 can be slidably sleeved on the large-diameter shaft in a matching way; the spring 80487 is sleeved on the large-diameter shaft and located between the shaft sleeve 80486 and the end face of the second connecting rod 8047 so as to be used for pushing the shaft sleeve 80486 against the limiting cap, and the spring 80487 is designed to enable the roller body 80481 to have a certain axial movement amount when the ring is automatically wound, so that the winding precision is ensured. As shown in fig. 7 and 8, each collapsible clamping mechanism 804 is provided with six support rollers 8048, the six support rollers 8048 are circumferentially and uniformly arranged around the rotating shaft 8043, and the six support rollers 8048 are used for supporting the tire bead together. In addition, the eccentric shaft 80483 can be used for fine adjustment of the position of the support rollers 8048, specifically, the position of the large-diameter shaft is changed by rotating the small-diameter shaft, so that fine adjustment of the position of the support rollers 8048 is realized, each support roller 8048 can be ensured to be in contact with the tire bead, and the same roundness of each support roller 8048 is ensured. After the adjustment is finished, the small-diameter shaft is locked by using a locking nut 80484 with a non-metal insert, so that the position of the support roller 8048 is prevented from changing.

The embodiment of the utility model provides a matrix drum station operation method, including following step:

s1, the carcass serviser 13 transfers the composite to the carcass drum 11 and completes the application of the composite on the carcass drum 11.

S2, the right preset ring 10 carrying the first right bead moves from the left end to the right end of the carcass drum 11 (i.e. the right preset ring 10 moves from the initial position to the waiting position), the composite stitching device 14 on the right preset ring 10 stitches the composite on the carcass drum 11 during the moving process, during the stitching process, the servo motor in the carcass drum chassis 12 drives the carcass drum 11 to rotate slowly to implement angular stitching (i.e. stitching according to the spiral walking route) of the composite, and after the stitching is completed, the right preset ring 10 continues to move rapidly to the waiting position at the right end of the carcass drum 11 along the linear guide rail on the bed 7.

And S3, sequentially finishing seam allowance fitting, cord manual sewing and cord rolling on the carcass drum 11.

S4, in the cord fabric rolling process, an operator has a certain idle time, at the moment, the operator installs the left tire bead and the second right tire bead on the left and right expansion and contraction clamping mechanisms 804 on the tire bead presetting device 8, the two expansion and contraction clamping mechanisms 804 move to the position coaxial with the tire body cylinder transfer ring 9 along the linear guide rail on the longitudinal beam 8012 and automatically transfer the left tire bead to the left steel ring 902, and then the two expansion and contraction clamping mechanisms 804 reset; after the cushion rubber attachment on the carcass drum 11 is completed, the carcass drum transfer ring 9 carries the left tire bead to move to a drum taking station (i.e. the position of the middle ring 903 at the middle part of the carcass drum 11) of the carcass drum 11 along a linear guide rail on the machine bed 7, after the drum taking station is reached, the right preset ring 10 automatically transfers the first right tire bead to the right steel ring 904 of the carcass drum transfer ring 9, then the right preset ring 10 returns to a waiting position, then the left steel ring 902 and the right steel ring 904 of the carcass drum transfer ring 9 shrink to a flat position, the magnet arc plate of the middle ring 903 shrinks to take the carcass, the carcass drum 11 shrinks and rotates, and the carcass drum transfer ring 9 finishes the carcass drum taking.

S5, the tire casing transfer ring 9 carries the tire casing drum, the left tire bead and the first right tire bead to the molding drum station and performs the molding process, the right pre-setting ring 10 moves to the upper ring station (i.e. the position where the right pre-setting ring 10 is used to receive the second right tire bead) along the linear guide rail on the bed 7, the two collapsible clamping mechanisms 804 move to the position coaxial with the right pre-setting ring 10 along the linear guide rail on the longitudinal beam 8012 and automatically transfer the second right tire bead to the right pre-setting ring 10, and then the tire casing transfer ring 9 and the right pre-setting ring 10 both return to the initial positions.

And S6, repeating the steps S1 to S3 according to the requirement to perform the circulation operation.

In the above step S2, in the first operation, the first right bead may be manually mounted on the right preset ring 10, and in the subsequent cycle operation, the first right bead carried on the right preset ring 10 is the second right bead received in the previous operation.

For clearer explanation the utility model discloses an implementation process gives prior art matrix drum station operation step preface table and the utility model discloses a matrix drum station step preface operation table.

Through the rearrangement of the structure, the scientific overall implementation of the beat process is realized. The processes of feeding the tire bead in the spare time, sewing the composite part, moving the right preset ring 10 to a waiting position and the like are reasonably combined, so that the production efficiency is greatly improved. The carcass tube transfer ring 9 retains 10 sets of pads of the intermediate ring 903 ensuring the precision of the carcass tube transfer and the precision and quality of the tyre product. Meanwhile, the composite piece sewing device 14 on the right preset ring 10 replaces a sewing device on the tire body feeding system 13, the structure is simplified, the weight of the swing frame in the tire body feeding system 13 is reduced, the model selection specification of a power system of the swing frame is reduced, the cost is saved, and the energy consumption is reduced.

In summary, the present invention is not limited to the above embodiments, and those skilled in the art can provide other embodiments within the technical teaching of the present invention, but these embodiments are included in the scope of the present invention.

Claims (3)

1. A three-drum forming machine comprises a machine body, a forming drum, a tire body cylinder transfer ring, a right preset ring and a tire bead preset device, and is characterized in that,

the tire body cylinder transfer ring comprises a tire side expansion ring, a left steel ring, a middle ring and a right steel ring, is slidably mounted on the lathe bed and positioned between the forming drum and the tire body drum, and is used for transferring the tire body cylinder, the left tire bead and the right tire bead;

the right preset ring is integrated with a composite sewing device, is arranged on the lathe bed and is positioned at one end of the tire body cylinder transfer ring close to the tire body drum, and is used for transferring the picked right tire bead to the right steel ring and sewing and attaching the composite on the tire body drum;

the tire bead presetting device comprises two expansion and contraction clamping mechanisms for supporting the left tire bead and the right tire bead, is arranged above the lathe bed and between the forming drum and the tire body drum, and is used for transferring the left tire bead to the left steel ring and transferring the right tire bead to the right presetting ring.

2. The three-drum forming machine according to claim 1, wherein the composite sewing device comprises a sewing cylinder, a mounting plate, a moving plate and a sewing pressure roller assembly, wherein the sewing cylinder is fixed on the right preset ring through the mounting plate, the output end of the sewing cylinder is fixedly connected to the moving plate, the moving plate is slidably connected with the mounting plate through the matching of a sliding rail and a fixed sliding block, and the sewing pressure roller assembly is swingably hinged at the lower end of the moving plate and faces to the inner side of the right preset ring; the moving plate is moved by the driving of the sewing cylinder, so that the sewing press roller assembly can be driven to press on the composite member which is completely attached to the tire body drum, and the composite member is sewn under the matching of the transverse movement of the right preset ring and the rotation of the tire body drum.

3. The three-drum forming machine according to claim 1 or 2, wherein the tire bead presetting device further comprises a fixing frame body and a driving mechanism, the two expansion and contraction clamping mechanisms are arranged in bilateral symmetry and are slidably connected with the linear guide rail fixed on the fixing frame body, and the driving mechanism is fixed on the fixing frame body and is used for driving the two expansion and contraction clamping mechanisms to move longitudinally along the linear guide rail on the fixing frame body, so that the expansion and contraction clamping mechanism on the left side can be in the same axial position with the left steel ring or the expansion and contraction clamping mechanism on the right side can be in the same axial position with the right presetting ring.

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