CN218946102U

CN218946102U - Engineering tire two half mould gas pocket processing equipment

Info

Publication number: CN218946102U
Application number: CN202320067621.6U
Authority: CN
Inventors: 王亚东; 周传海; 袁磊; 杨世涛; 崔洪洋
Original assignee: Mesnac Union Technology Co ltd
Current assignee: Mesnac Union Technology Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-05-02
Anticipated expiration: 2033-01-10

Abstract

The utility model provides a processing device for air holes of two half moulds of an engineering tire, which comprises: a base; the support mechanism is arranged on the base, the die is borne on the support mechanism, and at least one part of the support mechanism can be rotatably arranged and can rotate together with the die; the moving mechanism is connected with the base, and at least one part of the moving mechanism is movably arranged relative to the base; the connecting arm is connected with the moving mechanism and can move under the drive of the moving mechanism, and the connecting arm can pass through the central hole of the die and extend into the inner side of the die; and the feeding assembly is connected with the connecting arm and can be used for perforating the die. The utility model solves the problem of low processing efficiency of the exhaust hole of the engineering tire mold in the prior art.

Description

Engineering tire two half mould gas pocket processing equipment

Technical Field

The utility model relates to the technical field of tire processing, in particular to equipment for processing air holes of a two-half mold die of an engineering tire.

Background

Along with the increasing development of large mines and engineering construction, the requirements for large-scale vehicle engineering tires are also increased, the mould demand for producing engineering tires is also increased, the production process is complex in the production and processing process of engineering tire moulds, the process is complex, the two half-mould engineering tire moulds are larger in general size, and particularly the thickness size of pattern blocks is large. In the tire vulcanization process, residual gas in the discharge mold is critical to vulcanization quality, because the dimension and thickness of the engineering tire mold are large, the conventional equipment for processing the vent holes on the pattern blocks of the mold cannot process the vent holes of the engineering tire mold, and only a single manual processing mode can be adopted, so that on one hand, the working efficiency is low, the processing period is long, the intersection period requirement is difficult to meet, on the other hand, the processing quality is difficult to ensure, the processing precision and accuracy are low, and the high-precision requirement cannot be met.

Disclosure of Invention

The utility model mainly aims to provide equipment for processing air holes of two half moulds of an engineering tire, which aims to solve the problem of low processing efficiency of exhaust holes of an engineering tire mould in the prior art.

In order to achieve the above object, the present utility model provides a device for processing an air hole of a mold half of an engineering tire, comprising: a base; the support mechanism is arranged on the base, the die is borne on the support mechanism, and at least one part of the support mechanism can be rotatably arranged and can rotate together with the die; the moving mechanism is connected with the base, and at least one part of the moving mechanism is movably arranged relative to the base; the connecting arm is connected with the moving mechanism and can move under the drive of the moving mechanism, and the connecting arm can pass through the central hole of the die and extend into the inner side of the die; and the feeding assembly is connected with the connecting arm and can be used for perforating the die.

Further, the moving mechanism includes: the first guide rail is connected with the base and transversely extends; the first sliding block is movably arranged on the first guide rail; the second guide rail is connected with the first sliding block and moves synchronously, and the second guide rail is longitudinally extended; and the second sliding block is movably arranged on the second guide rail, and the connecting arm is connected with the second sliding block and synchronously moves with the second sliding block.

Further, the first guide rail is provided to extend in the axial direction of the die.

Further, the support mechanism includes: the support seat is connected with the base; the support shaft is arranged on the support seat in a penetrating way; the support shaft sleeve is sleeved outside the support shaft, at least one of the support shaft and the support shaft sleeve can be rotatably arranged, and the bottom of the die is supported on the support shaft and/or the support shaft sleeve.

Further, the support shafts extend along the axial direction of the die, the support shafts are multiple, and the support shafts are sequentially arranged along the direction perpendicular to the axial direction.

Further, the support shaft sleeve is a plurality of, and both ends of the support shaft are provided with the support shaft sleeve.

Further, the connecting arm comprises a first section and a second section which are connected in sequence, the first section is connected with the moving mechanism, the first section extends along the axial direction of the die and stretches into the inner side of the die, the second section extends along the radial direction of the die and is positioned in the die, and the feeding assembly is positioned on the second section.

Further, the feed assembly includes: a rotating part connected with the connecting arm, and at least one part of the rotating part is rotatably arranged relative to the connecting arm; and the feeding part is connected with the rotatable part of the rotating part, and the rotating part can drive the feeding part to rotate so as to adjust the machining direction of the feeding part.

Further, the rotating part includes: the rotating seat is connected with the connecting arm; and the rotating shaft is connected with the feeding part and drives the feeding part to rotate, and the rotating axis of the rotating shaft extends along the axial direction of the die.

Further, the feeding portion includes: the connecting seat is connected with the rotating part; the main shaft holding clamp is movably arranged relative to the connecting seat; the main shaft is clamped by the main shaft clamp, and a machined part for forming a die air hole is arranged on the main shaft; the feed screw is arranged on the connecting seat in a penetrating way and is in threaded fit with the main shaft clamping threads; the feeding driving piece is in driving connection with the feeding screw and drives the feeding screw to rotate so as to drive the main shaft and the main shaft clamping clamp to move.

Further, the feeding portion further includes: the sliding rail is positioned on the main shaft clamp and extends along the moving direction of the main shaft clamp; the sliding block is positioned on the connecting seat and provided with a sliding groove, and at least one part of the sliding rail is positioned in the sliding groove and can move along the sliding groove.

By adopting the technical scheme of the utility model, the processing of the air holes of the two half moulds of the engineering tire is realized through the mutual coordination of the components. Specifically, the supporting mechanism provides support for the engineering tire mold, so that the mold can be supported and placed on the base for machining, and meanwhile, the rotatable design of the supporting mechanism enables the mold to rotate circumferentially, so that the position is changed, and the feeding assembly can machine air holes at positions needing machining. The moving mechanism, the connecting arm and the feeding assembly are matched, the moving mechanism can drive the connecting arm and the feeding assembly to move, so that the feeding assembly can move to a proper position, machining of air holes is achieved, the connecting arm plays a role of an intermediate part, the feeding assembly extends to the inner side of the die, and the feeding assembly processes the air holes from the inner side of the die. The semi-automatic processing of the air holes of the die is realized jointly by mutually matching the mechanisms and the components, the position and the diameter size of the air holes are guaranteed by equipment precision, the processing efficiency is high, the labor intensity of personnel is low, the processing period is short, and the delivery requirements of customers are guaranteed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a schematic structural view of the engineering tire two-half mold air hole processing equipment of the utility model;

FIG. 2 is a schematic view showing another view of the air vent processing device for the two half molds of the engineering tire in FIG. 1;

fig. 3 shows a schematic structural view of the feed assembly of fig. 2.

Wherein the above figures include the following reference numerals:

10. a base; 20. a support mechanism; 21. a support base; 22. a support shaft; 23. a support shaft sleeve; 30. a moving mechanism; 31. a first guide rail; 32. a first slider; 33. a second guide rail; 34. a second slider; 40. a connecting arm; 50. a feed assembly; 51. a rotating seat; 52. a rotation shaft; 53. a connecting seat; 54. clamping the main shaft; 55. a main shaft; 56. a feed screw; 57. a feed drive; 58. a slide rail; 59. a sliding block.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that 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 unless otherwise indicated.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present utility model.

The utility model provides equipment for processing air holes of a two-half mould of an engineering tyre, which aims to solve the problem of low processing efficiency of the air holes of the engineering tyre mould in the prior art.

The air hole processing equipment for the two half moulds of the engineering tire as shown in fig. 1 and 2 comprises a base 10, a supporting mechanism 20, a moving mechanism 30, a connecting arm 40 and a feeding assembly 50, wherein the supporting mechanism 20 is arranged on the base 10, the mould is borne on the supporting mechanism 20, and at least one part of the supporting mechanism 20 can be rotatably arranged and can rotate together with the mould; the moving mechanism 30 is connected with the base 10, and at least one part of the moving mechanism 30 is movably arranged relative to the base 10; the connecting arm 40 is connected with the moving mechanism 30 and can move under the drive of the moving mechanism 30, and the connecting arm 40 can pass through the central hole of the die and extend into the inner side of the die; the feed assembly 50 is connected to the connecting arm 40, and the feed assembly 50 is capable of perforating a die.

In the embodiment, the processing of the air holes of the two half moulds of the engineering tire is realized through the mutual matching of the components. Specifically, the support mechanism 20 provides support for the engineering tire mold such that the mold can be supportingly placed on the base 10 for machining, while the rotatable design of the support mechanism 20 enables the mold to be rotated circumferentially to change positions such that the feed assembly 50 can perform machining of air holes at each position to be machined. The moving mechanism 30, the connecting arm 40 and the feeding assembly 50 are matched, the moving mechanism 30 can drive the connecting arm 40 and the feeding assembly 50 to move, so that the feeding assembly 50 can move to a proper position, machining of air holes is achieved, the connecting arm 40 plays a role of an intermediate part, the feeding assembly 50 extends to the inner side of a die, and the feeding assembly 50 performs machining of the air holes from the inner side of the die. The semi-automatic processing of the air holes of the die is realized jointly by mutually matching the mechanisms and the components, the position and the diameter size of the air holes are guaranteed by equipment precision, the processing efficiency is high, the labor intensity of personnel is low, the processing period is short, and the delivery requirements of customers are guaranteed.

In the present embodiment, the moving mechanism 30 includes a first rail 31, a first slider 32, a second rail 33, and a second slider 34, the first rail 31 is connected to the base 10, and the first rail 31 is disposed to extend laterally; the first slider 32 is movably disposed on the first guide rail 31; the second guide rail 33 is connected with the first slide block 32 and moves synchronously, and the second guide rail 33 is longitudinally extended; the second slider 34 is movably disposed on the second rail 33, and the connection arm 40 is connected to the second slider 34 and moves in synchronization with the second slider 34. Thus, when the position of the feeding assembly 50 needs to be changed, the first slider 32 moves on the first guide rail 31, so that the first slider 32 drives the second guide rail 33, the second slider 34, the connecting arm 40 and the feeding assembly 50 to move transversely to change the transverse position, and then the second slider 34 moves on the second guide rail 33, so that the second slider 34 drives the connecting arm 40 and the feeding assembly 50 to adjust the height position longitudinally, and the two aspects cooperate to realize the adjustment of the position of the feeding assembly 50.

According to the embodiment, the two sliding blocks are moved in a lead screw driving mode, namely, the sliding blocks are penetrated with the lead screws, and the lead screws are in threaded fit with the sliding blocks, so that the sliding blocks can be driven to move along corresponding guide rails when the lead screws rotate. Of course, other manners than the screw rod manner can be adopted to realize the driving of the sliding block movement. In addition to the above-described components, a guide post or the like may be added to guide the movement of the slider, particularly the longitudinal movement of the second slider 34.

Preferably, the first guide rail 31 extends along the axial direction of the mold, so that the position of the feeding assembly 50 in the mold can be adjusted, the position of the feeding assembly 50 can be basically adjusted by matching with the adjustment of the longitudinal position, and the air holes at each position can be processed by the feeding assembly 50 by adding the rotation adjustment of the feeding assembly 50.

In the present embodiment, the support mechanism 20 includes a support base 21, a support shaft 22 and a support shaft sleeve 23, the support base 21 is connected with the base 10, the support base 21 is used as a base portion of the support mechanism 20, the support shaft 22 is arranged on the support base 21 in a penetrating manner, the support shaft sleeve 23 is arranged on the outer side of the support shaft 22 in a sleeved manner, at least one of the support shaft 22 and the support shaft sleeve 23 is rotatably arranged, and the bottom of the mold is supported on the support shaft 22 and/or the support shaft sleeve 23. In this embodiment, the supporting shaft sleeve 23 is rotatably disposed, and the bottom of the mold is supported on the supporting shaft sleeve 23, so that the supporting shaft sleeve 23 plays a main role in supporting and smoothly rotating the mold, and the supporting shaft 22 does not play a role in supporting the mold, so that it may or may not rotate. Of course, in addition to the effect of supporting and rotating the support shaft sleeve 23 described above with the present embodiment, the support shaft 22 may be used to perform the above-described function, or both the support shaft 22 and the support shaft sleeve 23 may be used together to perform the above-described function.

Preferably, the support shaft 22 is disposed to extend in the axial direction of the mold, so that the support shaft 22 and the support shaft sleeve 23 thereon can be better engaged with the bottom surface of the mold, ensuring the supporting effect.

The support shafts 22 of the present embodiment are plural, and the support shafts 22 are sequentially arranged in a direction perpendicular to the axial direction, so that plural positions are supported, and the supporting effect is ensured. Similarly, the support shaft sleeves 23 are also multiple, and the support shaft sleeves 23 are arranged at the two ends of each support shaft 22, so that the support shaft sleeves 23 on each support shaft 22 can reliably support the die, and meanwhile, smooth rotation effect is ensured, and deflection and other conditions are avoided. The embodiment is provided with two supporting shafts 22, and the two supporting shafts 22 are respectively located at two sides of a longitudinal symmetry plane of the die, so that the supporting stability is better, and each supporting shaft 22 is provided with two supporting shaft 22 shaft sleeves and located at two ends, so that the supporting and smooth rotating effects are better. Of course, other arrangements of the support shaft 22 and the support shaft sleeve 23 may be adopted, as long as the effect of supporting the mold and ensuring smooth rotation of the mold can be achieved.

The connecting arm 40 of this embodiment includes a first section and a second section connected in sequence, the first section and the second section are bent and connected to form an L-shaped structure, wherein the first section is connected with the moving mechanism 30, the first section extends transversely, that is, along the axial direction of the mold, one end of the first section away from the second section is connected with the second slider 34, then the first section extends axially along the mold, passes through the central hole of the mold and extends into the inner side of the mold, then the connecting arm 40 is bent, the second section extends along the radial direction of the mold in a direction away from the center, more specifically extends downwards, the second section is located in the mold, and the feeding assembly 50 is also located on the second section, so that air holes can be processed.

As shown in fig. 3, the feeding assembly 50 of the present embodiment includes a rotating portion and a feeding portion, wherein the rotating portion is connected with the connecting arm 40, and at least a portion of the rotating portion is rotatably provided with respect to the connecting arm 40. The feeding part is connected with the rotatable part of the rotating part, and the rotating part can drive the feeding part to rotate, so that the machining direction of the feeding part can be adjusted, and the feeding part can machine air holes in all directions.

The rotating part of the present embodiment includes a rotating base 51 and a rotating shaft 52, wherein the rotating base 51 is connected with the connecting arm 40, and the rotating base 51 serves as a component for connecting the feeding assembly 50 with the connecting arm 40. The rotating shaft 52 is arranged on the rotating seat 51 in a penetrating way, and the rotating shaft 52 is also connected with the feeding part, so that the feeding part can be driven to rotate when the rotating shaft 52 rotates, and the adjustment of the non-processing direction is realized. Since the second section of the connecting arm 40 of the present embodiment extends radially, the rotation axis of the rotation shaft 52 extends in the axial direction of the die, so that the feeding portion changes direction around the circumferential direction of the die when rotating around the rotation shaft 52.

The feeding portion of the present embodiment includes a connection base 53, a main shaft holding clamp 54, a main shaft 55, a feed screw 56, and a feed driving member 57, the connection base 53 is connected with a rotation shaft 52 of a rotation portion, and the rotation portion can rotate the whole feeding portion by driving the connection base 53 to rotate. The main shaft holding clamp 54 is movably arranged relative to the connecting seat 53, the moving direction of the main shaft holding clamp 54 is the same as the extending direction of the second section of the connecting arm 40, and the main shaft holding clamp 54 moves along the radial direction of the die, the main shaft 55 clamps the main shaft 55, and a drill bit for forming a die air hole and other workpieces are arranged on the main shaft 55, so that the workpieces can move along the radial direction when the main shaft holding clamp 54 and the main shaft 55 move, and the workpieces are close to or far from the inner wall surface of the die, so that the processing of the air hole on the die is realized. Similar to the foregoing, the spindle clamp 54 of this embodiment is also moved by a screw driving manner, that is, the feed screw 56 is threaded on the connection seat 53 and is in threaded engagement with the spindle clamp 54, and the feed driving member 57 may be a motor, etc. that is in driving connection with the feed screw 56 through a belt, a gear, etc. driving members, so that the feed driving member 57 drives the feed screw 56 to rotate, and the feed screw 56 can drive the spindle clamp 54 and the spindle 55 to move through threaded engagement, thereby realizing the processing of the air hole.

In order to ensure the movement reliability of the spindle clamp 54, the feeding portion of the present embodiment further includes a slide rail 58 located on the spindle clamp 54 and a slide block 59 located on the connecting seat 53, the connecting seat 53 of the present embodiment includes a sleeve and a connecting plate, the connecting plate is located at one end of the sleeve, the feed screw 56 extends into the sleeve through the connecting plate, the feed driving member 57 is mounted on the connecting plate, a portion of the spindle clamp 54 is located in the sleeve and extends from one end of the sleeve away from the connecting plate, and the rotating shaft 52 is connected to a side surface of the sleeve. The slide rail 58 is located at the side of the portion of the main shaft holding clamp 54 extending into the sleeve and extends in the moving direction of the main shaft holding clamp 54, and accordingly, the slide block 59 is located at the inner wall surface of the sleeve, the slide block 59 has a slide groove, and at least a portion of the slide rail 58 is located in the slide groove and can move along the slide groove. In this way, the spindle holding clamp 54 can move along a preset direction when the feed screw 56 rotates through the matching of the sliding groove and the sliding rail 58, so that the conditions of rotation, deviation and the like are avoided, the reliability of movement is ensured, and the machining precision and accuracy are further ensured.

During actual processing, after an air hole is processed each time, the position of the inner wall surface opposite to the feeding assembly 50 can be changed by rotating the die, and the die can smoothly rotate due to the arrangement of the supporting mechanism 20, so that the direction of a machined part can be changed by adjusting the moving mechanism 30, the feeding assembly 50 and the like while the die is rotated, the die is avoided, interference is avoided, the feeding assembly 50 is aligned with the position of the air hole to be processed next time, then the air hole is processed, and the processing of all the air holes is completed by analogy.

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

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

1. the problem of the low exhaust hole machining efficiency of engineering tire mould among the prior art is solved;

2. semi-automatic processing of the air holes of the die is realized;

3. the position and the diameter size of the exhaust hole are ensured by the equipment precision, and the processing efficiency is high;

4. the labor intensity of personnel is low, the processing period is short, and the customer delivery requirements are ensured.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

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 example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated 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 the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an engineering child two half mould gas pocket processing equipment which characterized in that includes:

a base (10);

the support mechanism (20), the said support mechanism (20) is set up on the said base (10), the mould bears on the said support mechanism (20), at least a part of the said support mechanism (20) can rotate and set up, and can rotate with the said mould;

a movement mechanism (30), the movement mechanism (30) being connected to the base (10), at least a part of the movement mechanism (30) being movably arranged with respect to the base (10);

the connecting arm (40) is connected with the moving mechanism (30) and can move under the drive of the moving mechanism (30), and the connecting arm (40) can penetrate through a central hole of a die and extend into the inner side of the die;

-a feed assembly (50), said feed assembly (50) being connected to said connecting arm (40), said feed assembly (50) being capable of perforating said mould.

2. The engineering tire two-half mold air hole machining apparatus according to claim 1, wherein the moving mechanism (30) includes:

the first guide rail (31), the first guide rail (31) is connected with the base (10), and the first guide rail (31) is transversely extended;

a first slider (32), the first slider (32) being movably arranged on the first guide rail (31);

the second guide rail (33), the second guide rail (33) is connected with the first slide block (32) and moves synchronously, and the second guide rail (33) extends longitudinally;

and the second sliding block (34) is movably arranged on the second guide rail (33), and the connecting arm (40) is connected with the second sliding block (34) and synchronously moves with the second sliding block (34).

3. An engineering tire two-half mold air vent machining device according to claim 2, wherein the first guide rail (31) is arranged along the axial extension of the mold.

4. The engineering tire two-half mold air hole machining apparatus according to claim 1, wherein the support mechanism (20) includes:

the support seat (21), the said support seat (21) is connected with said base (10);

the support shaft (22) is penetrated on the support seat (21);

the support shaft sleeve (23), the support shaft sleeve (23) is sleeved outside the support shaft (22), at least one of the support shaft (22) and the support shaft sleeve (23) can be rotatably arranged, and the bottom of the die is supported on the support shaft (22) and/or the support shaft sleeve (23).

5. The equipment for machining air holes in two half moulds of engineering tires according to claim 4, wherein the support shafts (22) are arranged along the axial direction of the mould, the support shafts (22) are a plurality of, and each support shaft (22) is arranged in sequence along the direction vertical to the axial direction.

6. The engineering tire two-half mold air hole machining device according to claim 4, wherein the number of the support shaft sleeves (23) is plural, and both ends of the support shaft (22) are provided with the support shaft sleeves (23).

7. An engineering tire two-half mold air hole machining device according to claim 1, characterized in that the connecting arm (40) comprises a first section and a second section which are connected in sequence, the first section is connected with the moving mechanism (30), the first section extends along the axial direction of the mold and stretches into the inner side of the mold, the second section extends along the radial direction of the mold and is positioned in the mold, and the feeding assembly (50) is positioned on the second section.

8. The engineering tire two-half mold air hole machining apparatus according to claim 1, wherein the feed assembly (50) includes:

a rotating portion connected to the connecting arm (40), and at least a part of the rotating portion being rotatably provided with respect to the connecting arm (40);

and the feeding part is connected with the rotatable part of the rotating part, and the rotating part can drive the feeding part to rotate so as to adjust the machining direction of the feeding part.

9. The engineering tire two-half mold air hole processing apparatus according to claim 8, wherein the rotating part comprises:

a swivel base (51), the swivel base (51) being connected to the connecting arm (40);

and the rotating shaft (52) is connected with the feeding part and drives the feeding part to rotate, and the rotating axis of the rotating shaft (52) extends along the axial direction of the die.

10. The engineering tire two-half mold air hole processing apparatus according to claim 8, wherein the feeding section includes:

a connection base (53), wherein the connection base (53) is connected with the rotating part;

a main shaft holding clamp (54), wherein the main shaft holding clamp (54) is movably arranged relative to the connecting seat (53);

the main shaft (55), the main shaft holding clamp (54) clamps the main shaft (55), and a machined piece for forming a die air hole is arranged on the main shaft (55);

the feed screw (56) is penetrated on the connecting seat (53) and is in threaded fit with the main shaft holding clamp (54);

and the feeding driving piece (57) is in driving connection with the feeding screw (56) and drives the feeding screw (56) to rotate so as to drive the main shaft (55) and the main shaft holding clamp (54) to move.

11. The engineering tire two-half mold air hole processing apparatus according to claim 10, wherein the feeding section further comprises:

a slide rail (58) located on the spindle clamp (54), the slide rail (58) extending along the direction of movement of the spindle clamp (54);

and a sliding block (59) positioned on the connecting seat (53), wherein the sliding block (59) is provided with a sliding groove, and at least one part of the sliding rail (58) is positioned in the sliding groove and can move along the sliding groove.