A tread block type die plate assembly

Abstract

The application relates to a tire tread block type mouth plate assembly, which comprises a mouth box, a mouth plate and a pre-mouth plate, the mouth box is provided with mounting grooves on the front and back sides respectively, and a flow-through channel is arranged on the mouth box and penetrates the front and back mounting grooves; the mouth plate is arranged in the mounting groove on the front side of the mouth box, and the mouth plate is provided with a through type glue outlet; the pre-mouth plate is arranged in the mounting groove on the back side of the mouth box, and the pre-mouth plate is provided with a crown rubber extrusion channel and a wing rubber extrusion channel, and the crown rubber extrusion channel and the wing rubber extrusion channel are communicated with the flow-through channel of the mouth box. The depth of the left and right glue outlets is changed, so that the extrusion thickness of the mold glue is reduced; on the side with a long extrusion path, the machining depth of the glue outlet is increased, so that the extrusion resistance of the side is reduced, and the extrusion thickness of the mold glue of the side is increased. By adjusting the depth difference of the left and right machining of the glue outlet of the mouth plate, the uniformity of the extrusion thickness of the mold glue can be ensured.

Description

Technical Field

[0001] This invention relates to the field of tire processing technology, and in particular to a tire tread insert type die plate assembly. Background Technology

[0002] The preforming of the tire tread is completed on an extruder. The extruder extrudes two or three composite layers that form the tread into a tread. The shape and size of each layer of the tread need to meet the process requirements, and the control of the shape and size of each layer of the tread is accomplished by the die plate assembly installed on the die head.

[0003] In existing techniques, the cavity within the insert where the molding compound flows has a consistent processing depth on both sides. This design, however, results in inconsistent extrusion path lengths on the left and right sides, leading to inconsistent extrusion pressure and resistance, ultimately causing poor uniformity in the extruded compound thickness. This is especially true for the core design, where significant thickness differences between the left and right sides make it difficult to control the uniformity of extruded compound thickness by adjusting the height difference between the insert and the main body. Typically, the side with the shorter extrusion path has a thicker compound, while the side with the longer path has a thinner compound, resulting in poor overall uniformity and making it impossible to extrude a compound of uniform thickness. Summary of the Invention

[0004] To address the issue of inconsistent extrusion thickness of tire-type rubber, this invention provides a tire tread insert-type die plate assembly.

[0005] To achieve the purpose of this invention, a tire tread insert type beak plate assembly is provided, including a beak box, which has mounting grooves on its front and rear sides respectively, and a flow channel through the front and rear mounting grooves is provided on the beak box.

[0006] The die plate is set in the mounting groove on the front side of the die box, and the die plate has a through-hole for the molding glue.

[0007] The pre-form plate is set in the mounting groove on the rear side of the die box. The pre-form plate is provided with a crown rubber extrusion channel and a wing rubber extrusion channel, which are connected to the flow channel of the die box.

[0008] The die plate includes an upper plate and a lower plate. The upper plate has an upper outlet for the molding compound along its length, and the lower plate has a lower outlet for the molding compound. The upper outlet and the lower outlet for the molding compound form a molding compound extrusion port, which is connected to the outlet of the tire crown compound extrusion channel.

[0009] In some specific embodiments, the upper outlet and the lower outlet of the molding compound are arranged opposite to each other to form a molding compound extrusion port.

[0010] In some specific embodiments, first outlets are provided on the left and right sides of the molded glue outlet, the first outlets are concave and arc-shaped, and a second outlet is provided between the two first outlets.

[0011] In some specific embodiments, a third glue outlet is provided on the left and right sides of the lower outlet of the molding glue. The third glue outlet is concave and arc-shaped, and a fourth glue outlet is provided between the two third glue outlets.

[0012] In some specific embodiments, the depth of the first adhesive outlet on the left is greater than the depth of the first adhesive outlet on the right.

[0013] In some specific embodiments, the length of the third adhesive outlet on the left is greater than the length of the third adhesive outlet on the right.

[0014] In some specific embodiments, the first glue outlet on the left and the third glue outlet on the left form the shaped glue extrusion outlet of the first tire wing; the first glue outlet on the right and the third glue outlet on the right form the shaped glue extrusion outlet of the second tire wing.

[0015] In some specific embodiments, the second outlet of the upper molded material and the fourth outlet of the lower molded material form the molded material extrusion port of the tire crown.

[0016] The beneficial effects of this invention: This invention provides a tire tread insert-type die plate assembly. It includes a die box, a die plate, and a pre-die plate. By changing the depth of the left and right extrusion orifices, on the side with the shorter extrusion path, the processing depth of the extrusion orifice is reduced to increase the extrusion resistance on that side, thereby reducing the extrusion thickness of the die plate on that side; on the side with the longer extrusion path, the processing depth of the extrusion orifice is increased to reduce the extrusion resistance on that side, thereby increasing the extrusion thickness of the die plate on that side. By adjusting the difference in processing depth between the left and right extrusion orifices of the die plate, uniform die plate extrusion thickness can be ensured. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of some specific embodiments of a tire tread insert type mouth plate assembly of the present invention;

[0018] Figure 2 This is a structural schematic diagram of a tire tread insert type mouth plate assembly from another perspective of the present invention;

[0019] Figure 3 This is a schematic diagram of another embodiment of the tire tread insert type mouth plate assembly of the present invention.

[0020] In the attached diagram, 100 is the die plate; 110 is the upper plate; 120 is the lower plate; 130 is the upper outlet of the molding compound; 140 is the lower outlet of the molding compound; 131 is the first outlet; 132 is the second outlet; 141 is the third outlet; 142 is the fourth outlet; and 200 is the molding compound extrusion port. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0023] In the description of this invention, it should be understood that the terms "top", "bottom", "inner", "outer", "axis", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," "linking," "hinging," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Reference Figure 1 , Figure 2 and Figure 3The diagram illustrates a tire tread insert type bead plate assembly, comprising a bead box with mounting grooves on its front and rear sides, and a flow channel penetrating the mounting grooves. A bead plate 100 is disposed in the mounting groove on the front side of the bead box, and has a through-hole for the molding compound. A pre-bead plate 100 is disposed in the mounting groove on the rear side of the bead box, and has a crown compound extrusion channel and a wing compound extrusion channel, which communicate with the flow channel of the bead box. The bead plate 100 includes an upper plate 110 and a lower plate 120. An upper molding compound outlet 130 is provided along the length of the upper plate 110, and a lower molding compound outlet 140 is provided on the lower plate 120. The upper and lower molding compound outlets 130 and 140 form a molding compound extrusion port 200, which communicates with the outlet of the crown compound extrusion channel. By altering the depth of the left and right extrusion orifices, the processing depth of the orifice is reduced on the side with the shorter extrusion path to increase extrusion resistance and thus reduce the extruded thickness of the molded material on that side. Conversely, the processing depth of the orifice is increased on the side with the longer extrusion path to reduce extrusion resistance and thus increase the extruded thickness of the molded material on that side. By adjusting the difference in processing depth between the left and right extrusion orifices of the die plate 100, uniform extruded thickness of the molded material can be ensured.

[0027] In some specific embodiments, the upper outlet 130 and the lower outlet 140 of the molding compound are arranged opposite each other to form the molding compound extrusion port 200.

[0028] In some specific embodiments, the left and right sides of the molded glue outlet 130 are provided with first glue outlets 131, the first glue outlets 131 are concave and arc-shaped, and a second glue outlet 132 is provided between the two first glue outlets 131.

[0029] In some specific embodiments, a third glue outlet 141 is provided on the left and right sides of the glue outlet 140. The third glue outlet 141 is concave and arc-shaped, and a fourth glue outlet 142 is provided between the two third glue outlets 141.

[0030] In some specific embodiments, the depth of the left first adhesive outlet 131 is greater than the depth of the right first adhesive outlet 131.

[0031] In some specific embodiments, the length of the third adhesive outlet 141 on the left is greater than the length of the third adhesive outlet 141 on the right.

[0032] In some specific embodiments, the left first glue outlet 131 and the left third glue outlet 141 form the shaped glue extrusion outlet 200 of the first tire flap. The right first glue outlet 131 and the right third glue outlet 141 form the shaped glue extrusion outlet 200 of the second tire flap.

[0033] In some specific embodiments, the second outlet 132 of the upper outlet 130 and the fourth outlet 142 of the lower outlet 140 form the tire crown's extrusion port 200.

[0034] exist Figure 3 In the diagram, L1 and L2 represent the rubber flow paths of the insert-type die plate 100 during extrusion. The rubber extrusion path on the L1 side is longer, while the rubber extrusion path on the L2 side is shorter. H1 and H2 represent the depths of the rubber flow chambers in the insert-type die plate 100. H1 corresponds to the longer rubber extrusion path of L1, indicating a deeper rubber flow chamber. H2 corresponds to the shorter rubber extrusion path of L2, indicating a shallower depth of the second tire wing rubber extrusion port.

[0035] The longer the rubber extrusion path, the greater the extrusion resistance and the thinner the extruded rubber. Conversely, the shorter the extrusion path, the lower the extrusion resistance and the thicker the extruded rubber. Furthermore, the greater the depth of the rubber flow cavity, the lower the extrusion resistance and the thicker the extruded rubber. Conversely, the shallower the depth of the second tire wing-shaped rubber extrusion nozzle, the greater the extrusion resistance and the thinner the extruded rubber.

[0036] In this invention patent, L1, which has a longer rubber extrusion path, is combined with H1, which has a larger extrusion depth of the second tire wing rubber, and L2, which has a shorter rubber extrusion path, is combined with H2, which has a smaller extrusion depth of the second tire wing rubber, in order to control the uniformity of the rubber extrusion resistance and achieve uniformity of the rubber extrusion thickness.

[0037] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "a specific embodiment" or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tire tread insert type bevel plate assembly, characterized in that, include: The mouth-shaped box has mounting grooves on its front and rear sides, and a through-hole is provided on the mouth-shaped box. The flow channel of the rear mounting slot; A mouth-shaped plate is disposed in a mounting groove on the front side of the mouth-shaped box, and the mouth-shaped plate has a through-type... Glue export; A pre-form plate is disposed in a mounting groove on the rear side of the die box, and a tire crown is provided on the pre-form plate. The tread rubber extrusion channel and the wing rubber extrusion channel are connected to... The flow channel of the mouth-shaped box is connected; The orifice plate includes an upper plate and a lower plate. An upper outlet for the molding compound is provided along the length of the upper plate, and a lower outlet for the molding compound is provided on the lower plate. The upper outlet and the lower outlet for the molding compound form a molding compound extrusion port, which is connected to the outlet of the tire crown compound extrusion channel. The top outlet of the adhesive is provided with first outlets on the left and right sides, the first outlets are concave and arc-shaped, and a second outlet is provided between the two first outlets. The adhesive outlet is provided with a third adhesive outlet on the left and right sides. The third adhesive outlet is concave and arc-shaped. A fourth adhesive outlet is provided between the two third adhesive outlets. The depth of the first dispensing port on the left is greater than the depth of the first dispensing port on the right. The length of the third dispensing port on the left is greater than the length of the third dispensing port on the right.

2. The tire tread insert type bevel plate assembly according to claim 1, characterized in that, The upper outlet and the lower outlet of the molding compound are arranged opposite to each other to form a molding compound extrusion port.

3. The tire tread insert type bevel plate assembly according to claim 1, characterized in that, The first glue outlet on the left and the third glue outlet on the left form the shaped glue extrusion port of the first tire wing; the first glue outlet on the right and the third glue outlet on the right form the shaped glue extrusion port of the second tire wing.

4. The tire tread insert type bevel plate assembly according to claim 1, characterized in that, The second outlet of the upper outlet of the molding compound and the fourth outlet of the lower outlet of the molding compound form the molding compound extrusion port of the tire crown.

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