CN211971257U - Prevent branch of hat strap cord damage and cut out device - Google Patents

Abstract

The utility model discloses a prevent branch of hat band cord damage and cut out device, should divide cut out device include fixed bolster, sliding connection in a plurality of cut-off knives on the fixed bolster and the space block that is used for the interval cut-off knife, space block slidable connect in on the fixed bolster. The position of the cutter of the cutting device is not fixed, and when the fiber rubberized cord fabric is cut, the cutter can cut along the cutting direction of the cord fabric, so that the cord fabric is not damaged, and the quality of the crown band strip is guaranteed.

Description

Prevent branch of hat strap cord damage and cut out device

Technical Field

The utility model relates to a tire production part technical field especially relates to a prevent branch of hat band cord damage and cut out device.

Background

The Cap Ply (Cap Ply) is a reinforcing material (may be one layer or two or more layers) located between a belt and a tread in the production of a tire, and has a main function of preventing the deformation of the tire during high-speed running to improve high-speed durability. The semi-steel radial tire crown band is a strip material which is formed by cutting fiber rubberized cord fabric through a cutting machine and has a fixed width (the width range used by various tire manufacturers at present is 5-15 mm), and the crown band is required to have good impact resistance and bending resistance, so that the cutting quality of the tire body crown band has great influence on the quality (particularly bubbles and strength) of the tire. When the fiber rubberized cord fabric is cut into the crown band strips with fixed width, when the fiber rubberized cord fabric to be cut deviates, the cutting of the fiber rubberized cord fabric is not linear due to unreasonable cutting devices, and therefore cord threads on the edges of the crown band strips are exposed, and the quality of the crown band strips is affected.

To the above-mentioned problem, put forward the utility model discloses specially.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent branch of hat band cord damage and cut out device, this branch cut-off device's cut-off knife position is unset, when fibre kiss-coated curtain cloth divides the sanction, the cut-off knife can cut along the direction that the cord cut, has guaranteed that the cord does not receive the damage, has guaranteed the quality of hat band.

In order to achieve the above object, the utility model provides a following technical scheme:

a cutting device for preventing damage of a crown band cord comprises a fixed support, a plurality of cutters and a spacing block, wherein the cutters are connected to the fixed support in a sliding mode, the spacing block is used for spacing the cutters, and the spacing block is connected to the fixed support in a sliding mode.

Preferably, a guide rod is arranged on the fixing support, and the plurality of cutting knives are slidably sleeved on the guide rod.

Preferably, still include lifting unit, lifting unit includes vertical setting slide rail and sliding connection on the fixed bolster in slide rail last slide, the guide arm connect in on the slide.

Preferably, the upper end of slide sets up the threaded rod that is used for controlling the slide and goes up and down, correspond on the fixed bolster the threaded rod is provided with the driving seat, the threaded rod with driving seat threaded connection, the slide realizes going up and down through the threaded rod and the interact who drives the seat.

Preferably, the spacer block comprises a blocking part for blocking the cutting knife and sliding parts respectively arranged at two ends of the blocking part, and the spacer block is slidably connected to the fixed support through the sliding parts.

Preferably, the barrier is of a U-shaped structure.

Preferably, the thickness of the barrier is 5-15 mm.

Preferably, the fixed bracket is provided with a guide rail, and the spacing block is slidably arranged on the guide rail through the sliding part.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model provides a prevent branch cutting device of hat ribbon cord damage, this branch cutting device's cut-off knife position is unset, and it can slide from side to side along the guide arm, and the spacer block that sets up between two cut-off knives plays the interval limiting action on the one hand, makes the distance of two adjacent cut-off knives keep invariable all the time, and on the other hand it has also played the guide effect to the cut-off knife, makes the cut-off knife can not deflect in the process of sliding from side to side, has guaranteed the quality of cutting; the cutting knife is not fixed in position, so that when the fiber rubberized cord fabric is cut, the cutting knife can cut along the cutting direction of the cord thread, the cord thread is prevented from being damaged, the phenomenon that the cord thread is exposed due to the fact that the cord thread is cut at the edge of the crown band strip is avoided, the quality of the crown band strip is guaranteed, the yield of crown band strip production is improved, the incidence of abandonment due to disqualification of the crown band strip is reduced, the production cost is reduced, and meanwhile, the production efficiency is improved; and secondly, the quality of the cap strip is ensured deeper, the generation of poor bubbles of the tire is effectively reduced, the strength and the durability of the tire are ensured, and the dynamic uniformity of the tire is also ensured.

Drawings

Fig. 1 is a schematic structural view of the cutting device for preventing the damage of the crown band cord of the present invention.

Fig. 2 is a schematic view of the structure of the spacer block and the guide rail.

In the figure: 1-fixed support, 11-slide rail, 12-drive seat, 2-cut-off knife, 3-spacer block, 31-spacer part, 32-sliding part, 4-sliding seat, 5-threaded rod, 51-handle, 6-guide rod, 7-guide rail.

Detailed Description

The utility model discloses a core lies in providing a prevent branch of hat band cord damage and cuts out device, and the cut-off knife position that should divide cuts out the device is unset, and when fibre kiss-coat curtain cloth was cut out, the cut-off knife can cut along the direction that the cord cut, has guaranteed that the cord does not receive the damage, has guaranteed the quality of hat band.

In order to make the technical solution of the present invention better understood by those skilled in the art, the following description is given with reference to the accompanying drawings of the present invention for clear and complete description of the technical solution of the present invention. Based on the embodiments in the present application, other similar embodiments obtained by persons of ordinary skill in the art without any creative effort shall fall within the protection scope of the present application.

As shown in fig. 1 and 2, the cutting device for preventing damage to the crown band cord provided in this embodiment includes a fixing bracket 1, a lifting assembly connected to the fixing bracket 1, a guide rod 6 connected to the lifting assembly, a plurality of cutting knives 2 slidably sleeved on the guide rod 6, and a spacer 3 for spacing the cutting knives 2, a guide rail 7 is provided on the fixing bracket 1, the spacer 3 is slidably connected to the guide rail 7, and the material of the spacer 3 is selected as a material with a small sliding friction force between the spacer 3 and the guide rail 7, such as aluminum or iron.

The spacer 3 is including the sliding part 32 that is used for separating the fender portion 31 of interval cut-off knife 2 and sets up respectively in fender portion 31 both ends, and the fender portion 31 that separates is the U-shaped structure, and the design of U-shaped structure makes and separates the weight that fender portion 31 has alleviateed the fender portion under the prerequisite that does not influence its effect, makes the removal that separates fender piece 3 more light. The spacing block 3 is slidably disposed on the guide rail 7 through the sliding portion 32, and the blocking piece 3 can move along with the movement of the cutting knife 2. All the barriers 31 in the same cutting device have the same thickness, the thickness of the barrier 31 is determined according to the width required by the cap strip, the width of the cap strip used by each tire manufacturer is 5-15 mm at present, so the thickness of the barrier 31 is 5-15 mm according to the width required by the cap strip, namely when the width of the cap strip is 8mm, the thickness of the barrier 31 is 8 mm. The utility model discloses well spacer block 3 plays the interval limiting action on the one hand, makes two adjacent cut-off knives 2's distance remain invariable throughout, and on the other hand it has also played the guide effect to cut-off knives 2 for the deflection can not take place at the in-process of horizontal slip for cut-off knives 2, has guaranteed the quality of the cap strip that the curtain cloth obtained after cutting.

Lifting unit includes vertical slide rail 11 and the slide 4 of sliding connection on slide rail 11 that sets up on the fixed bolster 1, and the upper end of slide 4 sets up threaded rod 5 that is used for controlling the lift of slide 4, and corresponding threaded rod 5 is provided with drive seat 12 on the fixed bolster 1, threaded rod 5 and drive 12 threaded connection of seat, and the upper end of threaded rod 5 is provided with the handle 51 that is used for rotatory threaded rod 5, and slide 4 realizes going up and down through threaded rod 5 and the interact who drives seat 12. The guide rod 6 is connected on the slide 4, and the guide rod 6 is along with the slide 4 realization goes up and down, and then drives cut-off knife 2 and goes up and down in vertical direction to make this branch cut-off device adapt to different production demands.

The position of the cut-off knife 2 of the cutting device is not fixed, the cut-off knife can be properly and automatically adjusted according to the deviation condition of the fiber rubberized cord fabric, the space between the cut-off knives 2 is kept unchanged all the time under the spacing effect of the spacing blocks 3, the cut-off knives 2 can cut along the cutting direction of the cord fabric all the time, the cord fabric is guaranteed not to be damaged, the phenomenon that the cord fabric is exposed due to the fact that the cord fabric is cut at the edge of the crown band is avoided, the quality of the crown band is guaranteed, and the qualified rate of crown band production is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A cutting device for preventing damage of a crown band cord is characterized by comprising a fixed support, a plurality of cutting knives slidably connected to the fixed support and a spacing block for spacing the cutting knives, wherein the spacing block is slidably connected to the fixed support.

2. A cutting device for preventing damage to a crown band cord according to claim 1, wherein a guide rod is provided on said fixing bracket, and said plurality of cutters are slidably fitted over said guide rod.

3. A hat-band cord damage prevention cutting device according to claim 2, further comprising a lifting assembly including a slide rail vertically disposed on the fixing bracket and a slide slidably connected to the slide rail, wherein the guide bar is connected to the slide.

4. A cutting device for preventing damage to a crown band cord according to claim 3, wherein a threaded rod for controlling the elevation of the slide is provided at the upper end of the slide, a driving seat is provided on the fixing bracket corresponding to the threaded rod, the threaded rod is in threaded connection with the driving seat, and the slide is elevated by the interaction of the threaded rod and the driving seat.

5. A cutting device for preventing damage to a crown band cord according to claim 1, wherein said spacer block includes a barrier portion for spacing a cutter and sliding portions respectively provided at both ends of said barrier portion, said spacer block being slidably coupled to said fixing bracket by said sliding portions.

6. A hat strip cord damage prevention slitting device according to claim 5, wherein the dam is a U-shaped structure.

7. A crown band cord damage prevention slitting device as claimed in claim 6, wherein the thickness of the dam is 5-15 mm.

8. A hat band cord damage prevention slitting device according to claim 6, wherein a guide rail is provided on the fixing bracket, and the spacer block is slidably placed on the guide rail by the sliding portion.

Images