CN217345680U - Sizing material cutting device of tire forming machine and tire forming machine - Google Patents

Abstract

The utility model provides a tire building machine sizing material cutting device and tire building machine. Wherein, tire building machine sizing material cutting device includes: a frame; a drive assembly; the cutting knife assembly is movably arranged on the rack and is in driving connection with the driving assembly, the cutting knife assembly comprises a circular disc cutter and a power assembly in driving fit with the circular disc cutter, and the circular disc cutter is in driving connection with the driving assembly and rotates under the driving of the driving assembly; the knife board assembly and the cutter assembly are arranged on two opposite sides of the curtain cloth composite part, the circular disc cutter can be arranged in a deviating mode and forms an included angle with the knife board assembly under the driving of the power assembly, the circular disc cutter is provided with a first deviating position for forward cutting and a second deviating position for backward cutting, and the deviating directions of the first deviating position and the second deviating position relative to the knife board assembly are opposite. The utility model provides a bush-hook cutting device among the prior art unsatisfied curtain cloth compound enhancement layer cut the problem of demand.

Description

Sizing material cutting device of tire forming machine and tire forming machine

Technical Field

The utility model relates to a tire processing technology field particularly, relates to a tire building machine sizing material cutting device and tire building machine.

Background

At present, in the rubber machinery industry, a tire forming machine adopts a full-automatic feeding device, and rubber materials are pre-cut and then are attached during feeding, which is a common tire process.

Taking a radial tire cord fabric layer as an example, the tire body cord fabric layer bears most of load acting on the tire and is a tire stress framework layer, in order to simplify the tire fitting process, a common cord fabric layer and a cord fabric reinforcing layer are pre-compounded, then cut and then fitted to meet the market requirement, the original hook cutter cutting device can be directly cut when the common cord fabric layer is pre-cut, the cutting process requirement of rubber materials after the common cord fabric and the reinforcing layer are pre-compounded at the present stage is higher, the hook cutter does not meet the requirement of the composite material processing process, and the function failure can be caused by continuously adopting the cutting mode.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a tire building machine sizing material cutting device and tire building machine to solve the problem of the unsatisfied compound enhancement layer of curtain cloth of bush-hook cutting device among the prior art the demand that cuts.

In order to achieve the above object, according to an aspect of the present invention, there is provided a tire building machine rubber material cutting device, including: a frame; a drive assembly; the cutter assembly is movably arranged on the rack and is in driving connection with the driving assembly, the driving assembly drives the cutter assembly to integrally move so as to change the position of the cord fabric cutting composite part, the cutter assembly comprises a circular cutter and a power assembly in driving fit with the circular cutter, and the circular cutter is in driving connection with the driving assembly and rotates under the driving of the driving assembly; the knife board assembly and the cutter assembly are arranged on two opposite sides of the curtain cloth composite part, the knife board assembly and the cutter assembly jointly cut the curtain cloth composite part, the disc cutter can be arranged in an offset mode and forms an included angle with the knife board assembly under the driving of the power assembly, the disc cutter is provided with a first offset position for forward cutting and a second offset position for reverse cutting, and the offset directions of the first offset position and the second offset position relative to the knife board assembly are opposite.

Furthermore, the power assemblies are arranged on two opposite sides of the cutting disc, and the power assemblies on the two sides respectively drive the cutting disc to deviate towards the first deviation position and the second deviation position.

Further, the cut-off knife subassembly includes cutting knife rest, and the circular disc cutter rotationally sets up on cutting knife rest to cutting knife rest rotatable setting, power component include the cylinder that deflects, and the output pole and the cutting knife rest butt of deflecting the cylinder drive cutting knife rest and circular disc cutter to first skew position or second skew position deflection.

Further, the cutter assembly further comprises: the base is movably connected with the rack and is in driving connection with the driving assembly so as to integrally move under the driving of the driving assembly; the cutting knife rest is rotatably arranged on the cutting knife rest; the swinging rotary frame is rotatably arranged relative to the base, the swinging rotary frame is connected with the cutter frame and drives the cutter frame to synchronously rotate, and the power assembly is in driving fit with the cutter frame so that the circular cutter rotates between a first offset position and a second offset position.

Further, the cutter assembly further comprises: the transition frame is movably connected with the base and is connected with the swinging rotating frame; the adjusting cylinder is connected with the base, an output rod of the adjusting cylinder is abutted to the transition frame and drives the transition frame, the swinging and rotating frame, the cutter frame and the circular cutter to move transversely so as to be close to or far away from the cutter plate assembly.

Further, the cutter assembly further comprises: the base is provided with a through hole, and the limiting jackscrew penetrates through the through hole and is connected with the transition frame; and the limiting nut is sleeved outside the limiting jackscrew and is in threaded fit with the limiting jackscrew, and the limiting nut can be abutted against the base to control the motion range of the transition frame.

Furthermore, spacing jackscrew and limit nut all are provided with a plurality ofly, and all are provided with at least one limit nut on every spacing jackscrew, and the both sides that the transition put up relatively all are provided with spacing jackscrew.

Further, tire building machine sizing material cutting device still includes the clamp plate subassembly, and the clamp plate subassembly includes: the pressing plate is movably connected with the rack and can press the cord fabric composite piece; and the pressing plate driving part is in driving connection with the pressing plate and drives the pressing plate to switch between the positions for pressing and releasing the cord fabric composite piece.

Furthermore, the rubber material cutting device of the tire building machine further comprises a steering wheel assembly, the steering wheel assembly is movably connected with the cutter assembly and is in driving fit with the circular cutter, and the driving assembly drives the circular cutter to rotate through the steering wheel assembly.

According to another aspect of the utility model, a tire building machine is provided, including foretell tire building machine sizing material cutting device.

Use the technical scheme of the utility model, through being provided with the cut-off knife subassembly to the cut-off knife subassembly adopts the mode that the circular disc cutter cut, and like this, the ability that cuts of cut-off knife subassembly satisfies the technological requirement that cuts the compound enhancement layer of curtain cloth, makes the cut-off knife subassembly can smoothly cut the compound enhancement layer of curtain cloth, guarantees going on smoothly of the holistic work of cutting of tire building machine sizing material cutting device and subsequent handling. And the circular cutter adopts an offset arrangement mode, so that a cutter inlet angle is formed between the circular cutter and the cutter plate assembly when the circular cutter cuts into the cutter, and the purpose is to facilitate the cutter to cut the cord fabric composite reinforcing layer and ensure the smooth cutting of the cord fabric composite reinforcing layer. The utility model discloses a cut-off cutter assembly, including drive assembly, circle disc cutter, drive assembly, the circle disc cutter can skew to first skew position and second skew position simultaneously to both can carry out forward cutting when making the cut-off cutter assembly use, also can reverse cutting, the cut-off cutter assembly all can cut the compound enhancement layer of curtain cloth to two directions round trip movement under drive assembly's drive promptly, realize just cutting back and cutting out, thereby improve cutting efficiency, it cuts to go back to all can realize going into the corner of a knife moreover, can improve cutting efficiency, energy consumption is reduced.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of a rubber material cutting device of a tire building machine according to the present invention;

FIG. 2 is a schematic diagram showing another perspective of the tire building machine stock cutting assembly of FIG. 1;

fig. 3 shows a schematic structural view of the cutter assembly of fig. 1.

Wherein the figures include the following reference numerals:

10. a frame; 20. a drive assembly; 30. a cutter assembly; 31. a cutter disk; 32. a power assembly; 33. a cutter frame; 34. a base; 35. swinging and rotating the frame; 36. a transition frame; 37. adjusting the cylinder; 38. limiting jackscrews; 39. a limit nut; 310. a synchronizing wheel; 40. a knife board assembly; 50. a platen assembly; 51. pressing a plate; 52. a platen drive; 60. a steering wheel assembly; 70. a transmission member.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the problem that the compound enhancement layer of curtain cloth was unsatisfied to the bush-hook cutting device among the prior art's the demand that cuts, the utility model provides a tire building machine sizing material cutting device and tire building machine. The tire building machine is provided with a rubber material cutting device of the tire building machine.

As shown in fig. 1 to 3, the rubber cutting device for a tire building machine comprises a frame 10, a driving assembly 20, a cutter assembly 30 and a cutter plate assembly 40, wherein the cutter assembly 30 is movably arranged on the frame 10, the cutter assembly 30 is in driving connection with the driving assembly 20, the driving assembly 20 drives the cutter assembly 30 to integrally move so as to change the position of cutting a cord fabric composite part, the cutter assembly 30 comprises a circular disc cutter 31 and a power assembly 32 in driving fit with the circular disc cutter 31, and the circular disc cutter 31 is in driving connection with the driving assembly 20 and rotates under the driving of the driving assembly 20; the cutter plate assembly 40 and the cutter assembly 30 are arranged on two opposite sides of the curtain cloth composite part, the cutter plate assembly 40 and the cutter assembly 30 jointly cut the curtain cloth composite part, the circular disc cutter 31 can be arranged in an offset mode and forms an included angle with the cutter plate assembly 40 under the driving of the power assembly 32, the circular disc cutter 31 is provided with a first offset position for forward cutting and a second offset position for reverse cutting, and the offset directions of the first offset position and the second offset position relative to the cutter plate assembly 40 are opposite.

In the embodiment, the cutter assembly 30 is arranged, and the cutter assembly 30 adopts a cutting mode of the circular disc cutter 31, so that the cutting capacity of the cutter assembly 30 meets the process requirement of cutting the cord fabric composite reinforcing layer, the cutter assembly 30 can smoothly cut the cord fabric composite reinforcing layer, and the overall cutting work and the subsequent processes of the rubber material cutting device of the tire building machine are ensured to be smoothly carried out. And the circular disc cutter 31 adopts an offset arrangement mode, so that a cutter inlet angle is formed between the circular disc cutter 31 and the cutter plate assembly 40 when the circular disc cutter 31 cuts a cutter, and the purpose is to facilitate the cutter inlet to cut the cord fabric composite reinforcing layer and ensure the smooth cutting of the cord fabric composite reinforcing layer. Simultaneously disc cutter 31 can carry out the skew to first skew position and second skew position to both can carry out forward when making cutter unit spare 30 use and cut, also can reverse cutting, cutter unit spare 30 is under drive assembly 20's drive to two directions round trip movement all can cut the compound enhancement layer of curtain cloth, realize just cutting back and cut, thereby improve cutting efficiency, and it cuts to go back to the journey all can realize going into the sword angle, can improve cutting efficiency, reduce energy consumption.

As shown in fig. 3, in the present embodiment, the power assembly 32 is provided in plurality, and two power assemblies 32 are provided in the present embodiment, and the two power assemblies 32 are respectively provided at two opposite sides of the circular cutter 31, and the two power assemblies 32 at two sides respectively drive the circular cutter 31 to shift to the first shift position and the second shift position, so as to realize the shift in two directions for driving the circular cutter 31. Of course, the number and location of the power assemblies 32 may be adjusted as desired.

In the present embodiment, the power assembly 32 is not directly engaged with the circular cutter 31, but is a component of a third party, specifically, the cutting blade assembly 30 includes a cutting blade holder 33, the circular cutter 31 is rotatably disposed on the cutting blade holder 33, and the cutting blade holder 33 is rotatably disposed, and the rotation axis of the cutting blade holder 33 is perpendicular to the rotation axis of the circular cutter 31, so that the circular cutter 31 is driven to shift when the cutting blade holder 33 rotates, the circular cutter 31 is switched between the first shift position and the second shift position, and the circular cutter 31 itself rotates to cut. The power component 32 of this embodiment adopts cylinder driven mode, specifically including the cylinder that deflects, the axis of the cylinder that deflects and the axis of rotation parallel arrangement of circular disc cutter 31, and two power component 32 are located the relative both sides of cutter saddle 33 axis of rotation, the output lever and the cutter saddle 33 butt of cylinder that deflect, like this, when the cylinder drive output lever that deflects telescopically move, the output lever can extrude and drive cutter saddle 33, make cutter saddle 33 rotate for self rotation center, thereby drive circular disc cutter 31 and deflect to first skew position or second skew position. Of course, the specific driving manner of the power assembly 32 is not limited to the above-mentioned manner, and other structures may be adopted as required.

In this embodiment, the cutter assembly 30 further includes a base 34 and a swing frame 35, in addition to the cutter holder 33, the base 34 is movably connected to the frame 10, the frame 10 is transversely provided with a guide rail extending along a transverse direction perpendicular to the curtain fabric composite member, the base 34 is provided on the guide rail, the base 34 serves as a main body portion of the cutter assembly 30, most of the components are provided on the base 34, and the base 34 is drivingly connected to the driving assembly 20, so that the base 34 can be driven by the driving assembly 20 to move transversely along the guide rail as a whole. Pendulum revolving rack 35 sets up on base 34 to rotatable setting for base 34, pendulum revolving rack 35 passes through connecting axle and cutting knife frame 33 fixed connection, and drives cutting knife frame 33 and rotate in step, and like this, the axis of rotation of pendulum revolving rack 35 is the axis of rotation of cutting knife frame 33, and power component 32 also can make pendulum revolving rack 35 deflect in step when driving cutting knife frame 33 and deflect.

In this embodiment, the cutter assembly 30 further includes a transition frame 36 and an adjusting cylinder 37, the transition frame 36 is movably connected to the base 34 and connected to the swing frame 35, and the moving direction of the transition frame 36 relative to the base 34 is parallel to the conveying direction of the curtain fabric composite. Adjustment cylinder 37 is similar with deflection cylinder's structure, it is connected with base 34, and adjustment cylinder 37's output pole and transition frame 36 butt, thus, when adjustment cylinder 37 drive output pole concertina movement, the output pole can drive transition frame 36 lateral shifting, drive pendulum rotating stand 35 through transition frame 36, cutting-off tool rest 33 and the synchronous lateral shifting of cutting-off tool 31, thereby make cutting-off tool 31 be close to or keep away from cutting-off plate subassembly 40, the distance between cutting-off tool 31 and the cutting-off plate subassembly 40 changes, and then can overhaul when needing, change cutting-off tool 31, the interval with cutting-off tool 31 and cutting-off plate subassembly 40 is enlarged, conveniently take off cutting-disc 31, convenient to detach and tool changing.

The cutter assembly 30 of this embodiment further includes a limiting jackscrew 38 and a limiting nut 39, the two forms a limiting assembly, the base 34 has a via hole, the limiting jackscrew 38 is arranged on the via hole in a penetrating manner, one end of the limiting jackscrew 38 is connected with the transition frame 36, and the limiting jackscrew moves transversely under the driving of the transition frame 36. The limiting nut 39 is sleeved on the outer side of the limiting jackscrew 38 and is in threaded fit with the limiting jackscrew 38, the position of the limiting nut 39 on the limiting jackscrew 38 is adjusted in advance, when the adjusting cylinder 37 drives the transition frame 36 to move, the transition frame 36 drives the limiting jackscrew 38 to move together until the limiting nut 39 abuts against the base 34, at the moment, the limiting jackscrew 38 cannot move continuously due to the stopping of the limiting nut 39, the position of the transition frame 36 is fixed, and the purpose of controlling the movement range of the transition frame 36 is achieved. In addition, the limiting assembly can also ensure the contact tightness between the circular cutter 31 and the cutter plate assembly 40 when the device is normally used, so that the gap between the cutting edge and the bed knife can be kept at a required gap, and the cutting is facilitated.

The limiting jackscrew 38 and the limiting nut 39 of the embodiment are both provided with a plurality of limiting components, and therefore at least one limiting nut 39 is arranged on each limiting jackscrew 38, and each limiting component comprises one limiting jackscrew 38 and at least one matched limiting nut 39. The spacing subassembly of this embodiment is provided with two sets ofly to two sets of spacing subassemblies are located the relative both sides of transition frame 36 respectively, thereby follow the both sides of transition frame 36 and to transition frame 36 application of force, guarantee transition frame 36 atress balanced. Of course, the specific structure of the limiting assembly is not limited to the above arrangement manner of the embodiment, and other forms of limiting assemblies may be adopted according to the requirement.

As shown in fig. 1 and fig. 2, in the present embodiment, the rubber material cutting device of the tire building machine further includes a pressing plate assembly 50, the pressing plate assembly 50 includes a pressing plate 51 and a pressing plate driving member 52, wherein the pressing plate 51 is movably connected to the frame 10, and the pressing plate 51 is used for pressing the cord fabric composite piece onto the frame 10, and preparing for subsequent cutting by pressing the composite cord fabric material. The pressing plate driving part 52 is in driving connection with the pressing plate 51 and is used for driving the pressing plate 51 to switch between the positions for pressing and releasing the cord fabric composite piece.

In this embodiment, the rubber material cutting device of the tire building machine further includes a steering wheel assembly 60, the steering wheel assembly 60 is movably connected to the cutter assembly 30 and is in driving fit with the circular disc cutter 31, specifically, the steering wheel assembly 60 is rotatably disposed on the base 34, the rubber material cutting device of the tire building machine includes two synchronous belts as the transmission member 70, one of the synchronous belts is connected to the driving assembly 20 and is in driving connection with the synchronous wheel 310 on the circular disc cutter 31 through the steering wheel assembly 60, so that the driving assembly 20 drives the circular disc cutter 31 to rotate through the steering wheel assembly 60. Another timing belt connects the driving unit 20 and the base 34, so that the driving unit 20 moves the cutter unit 30 transversely through the base 34. Of course, the specific driving and transmission modes can be adjusted according to the requirements.

It should be noted that, a plurality in the above embodiments means at least two.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. the problem that the hook knife cutting device in the prior art cannot meet the cutting requirement of the cord fabric composite reinforcing layer is solved;

2. the cutter assembly can smoothly cut the cord fabric composite reinforcing layer, and the integral cutting work and the subsequent processes of the rubber material cutting device of the tire forming machine are ensured to be smoothly carried out;

3. the cutter is arranged in an offset mode, so that a cutter feeding angle is formed between the cutter disc and the cutter plate assembly when the cutter is used for cutting the cutter, and the purpose of cutting the cord fabric composite reinforcing layer conveniently by the cutter feeding and ensuring the smooth cutting of the cord fabric composite reinforcing layer is achieved;

4. the cutter assembly moves back and forth in two directions under the driving of the driving assembly to cut the cord fabric composite reinforcing layer, so that forward cutting and backward cutting are realized, the cutting efficiency is improved, the cutting can be realized by the cutter angle in the forward and backward processes, the cutting efficiency can be improved, and the energy consumption is reduced;

5. the distance between the disc cutter and the cutter plate assembly can be changed, so that the distance between the disc cutter and the cutter plate assembly can be adjusted to be large when the disc cutter needs to be overhauled and replaced, the disc cutter can be conveniently taken down, and the disc cutter is convenient to disassemble and replace;

6. the limiting assembly achieves the purpose of controlling the movement range of the transition frame, and the contact tightness between the cutter disc and the cutter plate assembly is guaranteed when the device is normally used, so that the gap between the cutting edge and the bottom cutter can be kept in a required gap, and the cutting is facilitated.

It is to be understood that the above-described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a tire building machine sizing material cutting device which characterized in that includes:

a frame (10);

a drive assembly (20);

the cutter assembly (30) is movably arranged on the rack (10), the cutter assembly (30) is in driving connection with the driving assembly (20), the driving assembly (20) drives the cutter assembly (30) to integrally move so as to change the position of the curtain fabric cutting composite part, the cutter assembly (30) comprises a circular disc cutter (31) and a power assembly (32) in driving fit with the circular disc cutter (31), and the circular disc cutter (31) is in driving connection with the driving assembly (20) and rotates under the driving of the driving assembly (20);

the knife plate assembly (40) and the cutter assembly (30) are arranged on two opposite sides of the curtain cloth composite part, the knife plate assembly (40) and the cutter assembly (30) jointly cut the curtain cloth composite part, the circular disc knife (31) can be arranged in an offset mode and forms an included angle with the knife plate assembly (40) under the driving of the power assembly (32), the circular disc knife (31) is provided with a first offset position for forward cutting and a second offset position for reverse cutting, and the offset directions of the first offset position and the second offset position relative to the knife plate assembly (40) are opposite.

2. The tire building machine stock cutting apparatus of claim 1, wherein the power assemblies (32) are plural and disposed on opposite sides of the cutter disc (31), the power assemblies (32) on both sides driving the cutter disc (31) to be offset to the first offset position and the second offset position, respectively.

3. Tyre building machine rubber material cutting device according to claim 2, characterized in that the cutter assembly (30) comprises a cutter carrier (33), the circular disc cutter (31) being rotatably arranged on the cutter carrier (33) and the cutter carrier (33) being rotatably arranged, and the power assembly (32) comprises a deflection cylinder, the output rod of which abuts the cutter carrier (33) and drives the cutter carrier (33) and the circular disc cutter (31) to deflect towards the first offset position or the second offset position.

4. The tire building machine stock cutting device of claim 1, wherein the cutter assembly (30) further comprises:

the base (34), the base (34) is movably connected with the frame (10) and is in driving connection with the driving component (20) so as to integrally move under the driving of the driving component (20);

the cutter frame (33), the said cutting disc (31) is set up on the said cutter frame (33) rotatably;

the rotary table knife comprises a swing rotary table (35), the swing rotary table (35) is arranged in a rotatable mode relative to the base (34), the swing rotary table (35) is connected with the knife cutting frame (33) and drives the knife cutting frame (33) to rotate synchronously, and the power assembly (32) is in driving fit with the knife cutting frame (33) so that the circular knife (31) can rotate between the first offset position and the second offset position.

5. The tire building machine stock cutting device of claim 4, wherein the cutter assembly (30) further comprises:

the transition frame (36), the transition frame (36) is movably connected with the base (34) and is connected with the swinging frame (35);

adjusting cylinder (37), adjusting cylinder (37) with base (34) are connected, adjusting cylinder (37) the output pole with transition frame (36) butt, and drive transition frame (36), pendulum revolving rack (35), cutter saddle (33) with circular disc cutter (31) lateral shifting, in order to be close to or keep away from cutting board subassembly (40).

6. The tire building machine stock cutting device of claim 5, wherein the cutter assembly (30) further comprises:

the base (34) is provided with a through hole, and the limiting jackscrew (38) penetrates through the through hole and is connected with the transition frame (36);

limiting nut (39), limiting nut (39) cover is established the limiting jackscrew (38) outside, and with limiting jackscrew (38) screw-thread fit, limiting nut (39) can with base (34) butt, in order to control the motion range of transition frame (36).

7. The tire building machine stock cutting device according to claim 6, wherein a plurality of limiting jackscrews (38) and limiting nuts (39) are provided, and at least one limiting nut (39) is provided on each limiting jackscrew (38), and the limiting jackscrews (38) are provided on opposite sides of the transition frame (36).

8. The tire building machine stock cutting apparatus of claim 1 further comprising a platen assembly (50), the platen assembly (50) comprising:

the pressing plate (51) is movably connected with the frame (10) and can press the cord fabric composite piece;

the pressing plate driving part (52) is in driving connection with the pressing plate (51), and drives the pressing plate (51) to switch between positions for pressing and releasing the cord fabric composite piece.

9. The tire building machine stock cutting device of claim 1, further comprising a steering wheel assembly (60), wherein the steering wheel assembly (60) is movably coupled to the cutter assembly (30) and drivingly engaged with the circular disc cutter (31), and the driving assembly (20) rotates the circular disc cutter (31) via the steering wheel assembly (60).

10. A tyre building machine comprising a tyre building machine compound cutting device according to any one of claims 1 to 9.

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