Novel tire forming hot knife

Abstract

The utility model relates to the technical field of tire manufacturing, in particular to a novel tire forming heat knife which comprises a heat knife body, the heat knife body is provided with a main blade and a handheld knife handle, the main blade extends towards the outer side to form a side blade, a first cutting groove and a second cutting groove are formed between the side blade and the main blade, and an axe face blade is arranged between the first cutting groove and the second cutting groove. According to the utility model, the side blade structure is arranged on the heat knife, so that a material can be clamped by the cutting groove at the upper part of the side blade of the heat knife during the cutting and trimming of a belted layer during the molding of a tire, and the belted cutting is carried out in a manner of pushing the heat knife forwards along the angle direction of the belted layer; when a soft tire body cord fabric layer is cut, the cutting channel, close to the cutter handle direction, of the side blade of the heat cutter can be used for rapidly cutting in the mode that the heat cutter is pulled backwards, and when the heat cutter of the side blade structure is used for repairing a tire blank semi-finished product, rubber materials can be cut, heated and attached through the axe face portion of the side blade. The purpose that one knife has multiple purposes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire manufacturing, in particular to a novel tire molding hot knife. Background Art

[0002] The tire is made of multiple components such as inner liner, sidewall rubber, cord, belt layer, cap layer, tread rubber, etc., which are molded and combined into a tire blank, and then placed in a mold for heating and vulcanization in a vulcanizer to obtain the final product. The tire molding process is the process of combining the various components that have been pressed out from the preparation workshop and then molding them through a molding machine to obtain a tire blank. The various components used in the molding process are whole roll components. When molding, they need to be cut into the required length according to the actual size of the molding drum. Different parts require different cutting methods and different types of hot knives for cutting.

[0003] In the existing two-step forming process and non-automatic one-step forming process, the inner lining, cord fabric and belt cutting all need to be manually cut with hot knives, and hot knives are often needed to repair abnormal tire blanks. Different parts and the direction and angle of cutting of parts often require the use of several hot knives, and operators need to switch between several hot knives frequently.

[0004] In view of the above shortcomings, we need to develop a new type of tire molding hot knife to meet the needs of the majority of users. Utility Model Content

[0005] In view of the above-mentioned problem that in the existing tire production process, different materials need to be processed by using several hot knives for coordinated use and switching, and the operation is frequent, the technical solution adopted by the utility model to solve the technical problem is:

[0006] A novel tire molding hot knife body comprises a hot knife body, wherein the hot knife body is provided with a main blade for cutting and a hand-held knife handle for easy holding, wherein the main blade extends a side blade toward the outside, wherein one side of the side blade forms a first cutting groove with the main blade, and the other side of the side blade forms a second cutting groove with the main blade, and an axe-face blade is provided between the first cutting groove and the second cutting groove.

[0007] Furthermore, in some embodiments, the side blade has an upper blade tip extending in a direction away from the hand-held knife handle, and the upper blade tip is provided with a blade tip angle C, and the blade tip angle C is set within an angle range of 0-80 degrees.

[0008] Furthermore, in some embodiments, the side blade has a lower blade tip extending in a direction close to the hand-held knife handle, and the lower blade tip is provided with a blade tip angle D, and the blade tip angle D is set within an angle range of 0-80 degrees.

[0009] Further, in some embodiments, assuming that the width of the end of the hot knife body close to the hand-held handle is width A, and assuming that the width of the end of the hot knife body away from the hand-held handle is width B, then 1*width A≥width B≥0.4*width A is satisfied.

[0010] Furthermore, in some embodiments, the main blade is provided with a cutting edge, and the cutting edge forms an inclined angle E with the symmetrical parting surface of the hot knife body, and the inclined angle E is set within an angle range of 0-20 degrees.

[0011] Furthermore, in some embodiments, an insulating handle sleeve for preventing burns is provided at one end of the hot knife body, and an anti-slip shape consisting of a concave surface and / or a convex surface is provided on the outer side of the insulating handle sleeve.

[0012] Furthermore, in some embodiments, it includes a fixing member, an anti-scalding member and a heating device which are fitted in sequence, and the heating device is provided with a heating cavity for heating the hot knife body.

[0013] Furthermore, in some embodiments, a fastening joint for easy installation is extended from the outer side of the fixing member, and a mounting hole is provided in the middle of the fastening joint.

[0014] Furthermore, in some embodiments, a plurality of through holes are formed on the side wall of the fixing member, and a diameter of the through holes is greater than or equal to 2 mm.

[0015] Furthermore, in some embodiments, the anti-scalding component is provided with a temperature control regulating device, and the temperature control regulating device is electrically connected to the heating device.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. The utility model provides a side blade structure on the hot knife body. When the tire is formed, the cutting and trimming of the belt layer can be carried out by using the first cutting groove between the side blade and the main blade to clamp the material, and at the same time, the hot knife body is pushed forward along the angle direction of the belt layer to cut the belt. When cutting the relatively soft carcass cord layer, the second cutting groove between the side blade and the main blade can be used to clamp the material, and then the hot knife body can be pulled back to quickly cut. When the new molding hot knife body is used to repair the tire embryo semi-finished product, the axe edge of the side blade can be used to cut the rubber material and heat the bonding rubber material, so as to achieve a one-knife-multiple-purposes effect.

[0018] 2. The utility model is provided with a temperature control regulating device on the anti-scalding part, which can not only quickly heat the hot knife body to the required temperature, but also can regulate the temperature of the heating device in real time to avoid excessive heat generated by continuous heating, which will cause the raw rubber to be scalded during use to avoid partial premature vulcanization of the tire, and also avoid natural cooling after heating that cannot achieve the heating effect. The temperature of the hot knife body is controlled to continue to rise, which can effectively reduce energy consumption.

[0019] 3. The utility model designs the side blade on the hot knife body to be a "K"-shaped structure, defines an opening angle at the upper and lower blade tips of the side blade, defines an inclination angle and a blade width at the blade surface of the hot knife body, and further improves the practicality of the side blade; an insulating handle sleeve is provided on the hand-held handle sleeve of the hot knife body to prevent burns, which facilitates manual operation of the hot knife body to process tires; a plurality of through holes are provided on the outer side of the fixing part, and the through holes can dissipate heat for the anti-scalding part, thereby preventing workers from overheating and scalding when installing or removing the fixing part, and protecting the workers' hands.

[0020] The utility model will be further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a front view of a novel tire molding hot knife.

[0022] Figure 2 for Figure 1 A cutaway view of the .

[0023] Figure 3 The utility model is a three-dimensional diagram of a novel tire molding hot knife.

[0024] Figure 4 The utility model is a three-dimensional exploded view of a novel tire molding hot knife.

[0025] Figure 5 This is an enlarged cutaway view of a new tire molding hot knife of the utility model.

[0026] Figure 6 This is an enlarged cutaway view of a new tire molding hot knife of the utility model. DETAILED DESCRIPTION

[0027] The implementation modes of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0028] like Figures 1 to 6As shown, a novel tire forming hot knife comprises a hot knife body 4, wherein the hot knife body 4 is provided with a main blade 5 for cutting and a hand-held knife handle 44 for easy holding, wherein the main blade 5 extends a side blade 41 toward the outside, wherein one side of the side blade 41 forms a first cutting groove 51 with the main blade 5, and the other side of the side blade 41 forms a second cutting groove 52 with the main blade 5, and an axe-face blade 53 is provided between the first cutting groove 51 and the second cutting groove 52.

[0029] Specifically, in some embodiments, the hot knife body 4 is a tool for cutting, repairing and processing abnormal tire embryos produced during the tire molding process. The heated blade is used to melt and cut the tire material at high temperature. Usually, several hot knives of different shapes are used in the tire molding process to process and cut abnormal tire embryos. The middle part of the blade of the hot knife body 4 extends outward with a side blade 41. The user can hold the knife handle 44 with his hand and use the structure of the side blade 41. The cutting and trimming of the belt layer during tire molding can be used on the hot knife side blade. The cutting groove on the top is used to clamp the material, and the hot knife is pushed forward along the angle direction of the belt layer to cut the belt. When cutting the softer carcass cord layer, the cutting groove on the side edge of the hot knife close to the handle can be used to clamp the material, and then the hot knife can be pulled back to quickly cut. When using a hot knife with a side blade structure to repair a semi-finished tire embryo, the axe surface of the side blade can be used to cut the rubber and heat the bonding rubber, achieving a one-knife-multiple-purposes effect, thereby avoiding the cumbersome operation caused by using a variety of hot knives with different shapes and improving tire processing efficiency.

[0030] Preferably, in some embodiments, the side edge of the hot knife body 4 is designed as a main edge 5 with a "K"-shaped structure. The cutting and trimming of the belt layer can be carried out by using the upper part of the main edge 5 with a "K"-shaped structure to clamp the material, and at the same time, the hot knife can be pushed forward along the angle direction of the belt layer to perform belt cutting. When cutting the relatively soft carcass cord layer, the lower part of the main edge 5 with a "K"-shaped structure can be used to clamp the material, and then the hot knife can be pulled back to quickly cut. When using a new type of molding hot knife to repair a tire embryo semi-finished product, the axe surface of the main edge 5 with a "K"-shaped structure can be used to cut the rubber and heat the bonding rubber, thereby further improving the use effect of the hot knife body 4 and improving the tire processing efficiency.

[0031] like Figure 6 As shown, the side blade 41 extends toward a direction away from the hand-held knife handle 44 to form an upper blade tip 42, and the upper blade tip 42 is provided with a blade tip angle C421, and the blade tip angle C421 is set within an angle range of 0-80 degrees.

[0032] Specifically, in some embodiments, the upper blade tip 42 is located on the side of the side blade 41 facing away from the hand-held knife handle 44, and the upper blade tip 42 is provided with a blade tip angle C421 with an opening angle of 0-80 degrees. When the tire is formed, the user can hold the insulating knife handle sleeve 45 to use the hot knife body 4, and the cutting and trimming of the belt layer can use the upper blade tip 42 of the side blade 41 to clamp the material, and at the same time, the hot knife can be pushed forward along the angle direction of the belt layer to perform belt cutting, which is one of the ways to use the hot knife body 4.

[0033] like Figure 6 As shown, the side blade 41 extends toward the direction close to the hand-held knife handle 44 to form a lower blade tip 43, and the lower blade tip 43 is provided with a blade tip angle D431, and the blade tip angle D431 is set within an angle range of 0-80 degrees.

[0034] Specifically, in some embodiments, the lower blade tip 43 is located on the side of the side blade 41 facing away from the hand-held knife handle 44, and the lower blade tip 43 is provided with a blade tip angle D431 with an opening angle of 0-80 degrees. When the tire is formed, the user can hold the insulating knife handle sleeve 45 to use the hot knife body 4. When cutting the relatively soft carcass cord layer, the lower blade tip 43 of the side blade 41 can be used to clamp the material, and then the hot knife can be pulled back to quickly cut, which is one of the ways to use the hot knife body 4.

[0035] like Figure 6 As shown, assuming that the width of the end of the hot knife body 4 close to the hand-held handle 44 is width A55, and the width of the end of the hot knife body 4 away from the hand-held handle 44 is width B56, then 1*width A55≥width B56≥0.4*width A55 is satisfied.

[0036] Specifically, in some embodiments, width A55 is the cross-sectional width of the blade at one end of the hot knife body 4 close to the hand-held handle 44, and width B56 is the cross-sectional width of the blade at one end of the hot knife body 4 away from the hand-held handle 44. Width B56 is controlled within the range of 0.4-1 times of width A55. By adopting such a design, a certain inclination angle can be generated at the tip of the hot knife body 4 relative to the handle, which has a better effect when the hot knife body 4 is used to push and pull the cutting material.

[0037] like Figure 6 As shown, the main blade 5 is provided with a cutting edge 54, and the cutting edge 54 forms an inclined angle E541 with the symmetrical parting surface of the hot knife body 4, and the inclined angle E541 is set within an angle range of 0-20 degrees.

[0038] Specifically, in some embodiments, the main blade 5 is provided with a blade edge 54 on the side used for cutting. The symmetrical parting surface refers to a dividing surface or plane in an object or structure with mirror symmetry. The blade edge 54 and the symmetrical parting surface of the hot knife body 4 form an inclined angle E541 with an opening angle of 0-20 degrees. The inclined angle E541 can control the sharpness of the blade of the hot knife body 4. Too large an angle will make the blade of the hot knife body 4 dull and unable to effectively and efficiently cut materials. The main blade 5 formed by the blade edge 54 with a 0-20 degree inclined angle E541 has relatively sharp cutting performance, while taking into account the bending strength of the hot knife body 4, so that the hot knife body 4 is both sharp and durable.

[0039] like Figures 1 to 5 As shown, one end of the hot knife body 4 is provided with an insulating handle sleeve 45 for preventing burns, and the outer side of the insulating handle sleeve 45 is provided with an anti-slip shape 451 composed of a concave surface and / or a convex surface.

[0040] Specifically, in some embodiments, the insulating knife handle cover 45 is a heat-insulating material used to prevent the user's hands from being burned when using the hot knife body 4. The insulating knife handle cover 45 can be a heat-insulating handle kit composed of cellulose insulation material, foamed plastic, aerogel material or heat-insulating paint coating. On the basis of the heat insulation function, the outer side of the insulating knife handle cover 45 is provided with an anti-slip shape 451 composed of concave and / or convex surfaces. The undulating anti-slip shape 451 prevents the user's hands from slipping when using the hot knife body 4 vigorously.

[0041] like Figures 1 to 4 As shown, it comprises a fixing member 1, an anti-scalding member 2 and a heating device 3 which are fitted in sequence. The heating device 3 is provided with a heating cavity 31 for heating the hot knife body 4.

[0042] Specifically, in some embodiments, the fixing part 1 is a fixing accessory for fixing the clamping position of the anti-scalding part 2 and the heating device 3, the anti-scalding part 2 is an insulating material for isolating the heat generated by the heating device 3, and the anti-scalding part 2 can be an insulating product composed of cellulose insulating material, foamed plastic, aerogel material or insulating paint coating, etc. The heating device 3 is a heating device for heating the hot knife body 4, which generates high temperature in the form of electromagnetic heating, the anti-scalding part 2 is sleeved on the outside of the heating device 3 to isolate the high temperature of the heating device 3 to avoid scalding the user's hands, and the fixing part 1 is sleeved on the outside of the anti-scalding part 2 to fix the working position of the anti-scalding part 2 and the heating device 3.

[0043] like Figures 1 to 4 As shown, a fastening joint 11 for easy installation is extended from the outer side of the fixing member 1, and a mounting hole 12 is opened in the middle of the fastening joint 11.

[0044] Specifically, in some embodiments, a fastening joint 11 for easy installation extends from the outer side of the fixing part 1. The fastening joint 11 is an installation structure for detachably connecting a workbench or other components. A mounting hole 12 is opened in the middle of the fastening joint 11. The user uses screws and bolts to pass through the mounting hole 12 to install the fixing part 1 or lock the position of the anti-scalding part 2 and the heating device 3. The structure is simple, which is convenient for users to install and disassemble, improves the efficiency of using the hot knife, and improves the efficiency of tire processing.

[0045] like Figures 1 to 4 As shown, the side wall of the fixing member 1 is provided with a plurality of through holes 13 , and the diameter of the through holes 13 is greater than or equal to 2 mm.

[0046] Specifically, in some embodiments, a plurality of through holes 13 are provided on the side wall of the fixing member 1. Normally, the heating device 3 will generate relatively high heat during the heating process, and there will still be a certain amount of residual heat after being isolated by the anti-scalding member 2. The through holes 13 can dissipate the residual heat that passes through the anti-scalding member 2, thereby further reducing the surface temperature of the outer wall of the fixing member 1, thereby preventing the user from being overheated and scalded when installing or removing the fixing member 1, making it convenient for the user to contact the side wall of the fixing member 1, thereby protecting the user's hands.

[0047] like Figures 1 to 4 As shown, the anti-scalding component 2 is provided with a temperature control regulating device 21 , and the temperature control regulating device 21 is electrically connected to the heating device 3 .

[0048] Specifically, in some embodiments, the temperature control and adjustment device 21 is a sensor or adjustment device for detecting and adjusting the real-time temperature of the heating device 3. The temperature control and adjustment device 21 is electrically connected to the heating device 3. The temperature control and adjustment device 21 is provided with a thermal sensor for detecting the temperature of the heating device 3. The user can detect and maintain the real-time temperature of the heating device 3 through the thermal sensor of the temperature control and adjustment device 21. Not only can the hot knife body 4 be quickly heated to the required temperature, but the temperature of the heating device 3 can also be adjusted in real time to avoid excessive heat generated by continuous heating, which causes the raw rubber to be cooked during use to avoid local premature vulcanization of the tire, and also avoids natural cooling after heating and the inability to achieve the heating effect. Energy consumption can be effectively reduced. When the preset temperature is reached, the temperature control and adjustment device 21 controls the heating device 3 to stop heating. When the temperature of the heating device 3 is lower than the preset temperature, the temperature control and adjustment device 21 restarts the heating device 3 to heat, so that the temperature of the heating device 3 is always controlled within the preset temperature range. The hot knife body 4 can be used for tire processing when it is at the preset working temperature.

[0049] like Figures 1 to 6 As shown, the specific implementation of Example 1 of the utility model is as follows:

[0050] Before using the hot knife body 4, the anti-scalding member 2 is sleeved on the outside of the heating device 3, and the anti-scalding member 2 is connected to the heating device 3 and extends into the accommodating cavity of the fixing member 1. The fixing member 1 is fixed to the workbench by screws and bolts passing through the mounting holes 12. After tightening the screws and bolts, the fixing member 1 contracts the outer shell to clamp the anti-scalding member 2 and the heating device 3.

[0051] After the power is turned on, the side of the hot knife body 4 provided with the side blade extends into the heating chamber 31 of the heating device 3, and the heating device 3 continuously heats the hot knife body 4. The temperature control and adjustment device 21 continuously detects the real-time temperature of the heating device 3 through the thermal sensor. When the preset temperature is reached, the temperature control and adjustment device 21 controls the heating device 3 to stop heating. When the temperature of the heating device 3 is lower than the preset temperature, the temperature control and adjustment device 21 starts the heating device 3 again to heat, so that the temperature of the heating device 3 is always controlled within the preset temperature range. When the hot knife body 4 is at the preset working temperature, it can be used for tire processing;

[0052] When the tire is being molded, the user can hold the insulating knife handle 45 to use the hot knife body 4. For cutting and trimming the belt layer, the first cutting groove 51 between the side blade 41 and the main blade 5 can be used to clamp the material, and the hot knife can be pushed forward along the angle direction of the belt layer to cut the belt. When cutting the relatively soft carcass cord layer, the second cutting groove 52 between the side blade 41 and the main blade 5 can be used to clamp the material, and then the hot knife can be pulled back to quickly cut. When the new molding hot knife is used to repair the tire embryo semi-finished product, the axe edge 53 of the side blade 41 can be used to cut the rubber material and heat the bonding rubber material, so as to achieve a one-knife-multiple-purposes effect.

[0053] During the use of the heating device 3, most of the heat is isolated by the anti-scalding component 2, and some residual heat remains. The residual heat is dissipated through the multiple through holes 13 of the fixing component 1 to prevent the outer wall of the fixing component 1 from scalding the user's hands. After the use of the hot knife body 4 is completed, the screws and bolts on the fastening joint 11 are removed to complete the removal of the fixing component 1.

[0054] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. A new type of tire molding hot knife, characterized by: The hot knife comprises a main body (4), the main body (4) being provided with a main blade (5) for cutting and a hand-held handle (44) for easy holding, the main blade (5) extending outwardly to form a side blade (41), one side of the side blade (41) and the main blade (5) forming a first cutting groove (51), the other side of the side blade (41) and the main blade (5) forming a second cutting groove (52), and an axe-shaped blade (53) being provided between the first cutting groove (51) and the second cutting groove (52); The main blade (5) is provided with a blade edge (54), and the blade edge (54) forms an inclined angle E (541) with the symmetrical parting surface of the hot knife body (4), and the inclined angle E (541) is set within an angle range of 0-20 degrees.

2. A novel tire building hot knife according to claim 1, characterized in that: The side blade (41) extends toward a direction away from the hand-held knife handle (44) to form an upper blade tip (42), and the upper blade tip (42) is provided with a blade tip angle C (421), and the blade tip angle C (421) is set within an angle range of 0-80 degrees.

3. A novel tire building hot knife according to claim 1, characterized in that: The side blade (41) extends toward the direction close to the hand-held knife handle (44) to form a lower blade tip (43), and the lower blade tip (43) is provided with a blade tip angle D (431), and the blade tip angle D (431) is set within an angle range of 0-80 degrees.

4. A novel tire building hot knife according to claim 1, characterized in that: Assuming that the width of the end of the hot knife body (4) close to the hand-held knife handle (44) is width A (55), and the width of the end of the hot knife body (4) away from the hand-held knife handle (44) is width B (56), then 1*width A (55) ≥ width B (56) ≥ 0.4*width A (55) is satisfied.

5. A novel tire building hot knife according to claim 1, characterized in that: An insulating handle sleeve (45) for preventing burns is provided at one end of the hot knife body (4), and an anti-slip shape (451) composed of a concave surface and / or a convex surface is provided on the outer side of the insulating handle sleeve (45).

6. A novel tire building hot knife according to claim 1, characterized in that: It comprises a fixing part (1), an anti-scalding part (2) and a heating device (3) which are fitted in sequence, wherein the heating device (3) is provided with a heating cavity (31) for heating the hot knife body (4).

7. A novel tire building hot knife according to claim 6, characterized in that: A fastening joint (11) for easy installation extends from the outside of the fixing member (1), and a mounting hole (12) is provided in the middle of the fastening joint (11).

8. A novel tire building hot knife according to claim 6, characterized in that: The side wall of the fixing member (1) is provided with a plurality of through holes (13), and the diameter of the through holes (13) is greater than or equal to 2 mm.

9. A novel tire building hot knife according to claim 6, characterized in that: The anti-scalding component (2) is provided with a temperature control and adjustment device (21), and the temperature control and adjustment device (21) is electrically connected to the heating device (3).

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