Combined die of T-shaped packing embedded with reinforced nylon rope

Abstract

The utility model discloses a combined die for T-shaped packing embedded with a reinforced nylon rope, which comprises a lower die, a plurality of symmetrically arranged lead-out pin stepped holes are processed at the bottom of the lower die, the tops of the lead-out pin stepped holes are communicated with a T-shaped groove arranged in the middle of the lower die, the tops of the T-shaped groove are communicated with a wedge-shaped groove arranged at the top of the lower die, and the wedge-shaped groove is communicated with the lower die. A wedge-shaped boss located below the middle die is embedded in the wedge-shaped groove, and an inclined face machined on the edge of the wedge-shaped boss is matched with an inclined face of the wedge-shaped groove. A middle die panel matching cavity is formed in the center of the middle die, and an upper die is connected above the middle die in a pressing manner; the upper mold, the middle mold and the lower mold form a product vulcanization molding cavity; according to the utility model, the product can be automatically demoulded along with the upward movement of the lead-out pin, so that the safety risk is reduced, the production efficiency is improved, and the problems of scalding and low production efficiency possibly caused by manual product taking of a conventional mould are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field, concretely is a kind of combined mould of inner inlay reinforced nylon rope T type packing. BACKGROUND

[0002] Rubber mould refers to the tool that rubber is shaped by injection molding, extrusion or pressing etc. shaping method to rubber material, obtains the product required. The production of inner inlay reinforced nylon rope rubber strip, at least 3 sets of mould are needed in current conventional production to carry out assembly line production by expensive special equipment, wherein, one assembly line is specially used to fix nylon rope, one assembly line is used to final vulcanization forming. This kind of production mode has high initial investment cost, product price is high and the labor process is complicated. If abandoning this assembly line operation and only using a set of conventional mould to produce, although the investment cost is reduced, but a set of conventional mould can only realize the production of product overall appearance size, but the fixing of nylon rope is a big problem, if reinforcing rope is not pre-fixed and directly laid with raw rubber semi-finished product, rubber and nylon rope as a whole are vulcanized in closed cavity by certain temperature, time and pressure, semi-finished product rubber becomes viscous flow state in vulcanization initial stage, fills the mould cavity at the same time and fully extrudes naturally laid reinforcing rope, so that the rope is bent and deviated from position, and even the rope can be broken and lost, so the purpose of uniformly strengthening product strength is lost. Therefore, the utility model creatively proposes a kind of combined mould of inner inlay reinforced nylon rope T type packing, can fix reinforcing nylon rope at product design position, effectively strengthens product strength. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a kind of combined mould of inner inlay reinforced nylon rope T type packing to solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of combined mould of inner inlay reinforced nylon rope T type packing, including lower mould, the bottom of lower mould is processed with several symmetrically arranged lead-out pin step holes, the top of lead-out pin step hole is communicated with the T type groove being arranged in the middle part of lower mould, the top of T type groove is communicated with the wedge-shaped recess being arranged in the top of lower mould, wedge-shaped recess is embedded with the wedge-shaped boss being located below middle mould, the inclined surface being processed on the edge of wedge-shaped boss is matched with the inclined surface of wedge-shaped recess;The center of middle mould is provided with middle mould inlay strip cooperation cavity, and the upper side is tightly connected with upper mould;The upper mould, middle mould and lower mould form product vulcanization plastic cavity;

[0005] Second inlay strip is arranged in T type groove, and the preformed rubber strip embedded in middle mould inlay strip cooperation cavity is arranged on the upper side of second inlay strip, a plurality of semicircular grooves are arranged on the upper edge of preformed rubber strip, and first inlay strip is embedded in semicircular groove.

[0006] Preferably, the half-circular grooves of the preformed rubber strip are arranged to accommodate the nylon ropes, a layer of rubber is arranged on the nylon ropes, and a nylon rope fixing strip is formed by hot pressing through the upper die, the middle die, the lower die and the second insert.

[0007] Preferably, the lead-out pin step hole is arranged with a lead-out pin.

[0008] Preferably, the upper surface of the lead-out pin is flush with the bottom of the T-shaped groove of the lower die, and the lower surface of the small head of the lead-out pin is flush with the bottom of the lower die.

[0009] Preferably, the cross section of the T-shaped groove is matched with the cross section of the second insert.

[0010] The working principle of the utility model is as follows:

[0011] By embedding the insert in the T-shaped groove of the lower die and embedding the insert in the middle die, an nylon rope position fixing cavity is formed by the upper die, the middle die, the lower die, the first insert, the second insert and the lead-out pin, under a certain pressure and time, a rubber strip with five half-circular grooves is formed by heating the mold, then the first insert is removed, five reinforcing nylon ropes are arranged in the five half-circular grooves, and another raw rubber strip is arranged to cover the five nylon ropes, then the nylon ropes are fixed by heating in the cavity formed by the upper die, the middle die, the second insert and the lower die, thereby forming a nylon rope fixing strip. Then the second insert is removed, the T-shaped cavity of the lower die is replaced by raw rubber, and the heating vulcanization of the workpiece is completed in the cavity combined by the upper die, the middle die and the lower die, thereby forming a product. Before the product is finally formed, the cavity formed by the upper die, the middle die, the lower die, the first insert and the second insert pre-fixes the nylon ropes, so that after the first insert and the second insert are removed, the rubber filled in the final product cavity formed by the upper die, the middle die and the lower die does not cause external extrusion to the nylon ropes, and the reinforcing nylon ropes are effectively fixed at the designed position. Finally, after the vulcanization and forming of the packing are completed through the lead-out mechanism, the T-shaped packing is moved upward through the bottom lead-out pin, the product is smoothly separated from the lower die, and the workpiece is quickly taken out.

[0012] The utility model has the advantages of:

[0013] (1) The upper die, the middle die, the lower die, the first insert, the second insert and the lead-out pin are used in combination to complete the first preforming of the inner-insert reinforcing nylon rope T-shaped packing, the structure provides a preformed rubber strip with a groove, which guarantees the preliminary position fixing of the nylon ropes and avoids the phenomena of breakage, curling deformation and floating on the product surface of the nylon ropes directly laid on the semi-finished rubber sheet in the prior art.

[0014] (2) The utility model discloses a upper die and middle die, lower die and second insert strip, export pin cooperate to use, complete the second preforming of inner insert reinforcing nylon rope T type packing, further realize the position fixed of five nylon ropes, completely solve the problem that the nylon rope is extruded deformation, bending fracture even the surface exposure in the full flow process of the impact reinforcing nylon rope of rubber in the scorching stage of vulcanization process. The position of nylon rope is fixed, and the internal reinforcement is uniform, and the product quality is guaranteed.

[0015] (3) The utility model discloses solve the problem of the scald of possible occurrence of the common mould artificial product, and the low production efficiency, and this structure completes the automatic demoulding of product with the upshift of export pin, reduces the security risk, improves the production efficiency. Through the utility model, the inner insert reinforcing nylon rope T type packing of production, product multiple batch production, and the qualified rate is from the original 5% below to 98% above, and the product quality is greatly improved, and the economic benefit is improved, and the production cost is reduced. The appearance of the produced part is beautiful, and the reinforcing nylon rope of uniform arrangement can be seen in any cross section, and the strip packing tension and strength are uniform, reach the design requirement and user satisfaction. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the final vulcanization mould structure schematic view of the utility model,

[0017] Figure 2 It is the groove preforming rubber strip processing mould structure schematic view of the utility model,

[0018] Figure 3 It is the nylon rope fixed strip forming mould structure schematic view of the utility model,

[0019] Figure 4 It is the inner insert reinforcing nylon rope T type packing demoulding schematic view of the utility model.

[0020] In the drawing: 1, upper die;2, middle die;3, nylon rope;4, lower die;5, export pin;6, first insert strip;7, second insert strip;8, matching inclined surface;9, middle die insert strip matching cavity;10, inner insert reinforcing nylon rope T type packing;11, export pin step hole;12, T type groove;13, nylon rope fixed strip;14, wedge-shaped recess;15, wedge-shaped boss;16, groove preforming rubber strip. DETAILED DESCRIPTION

[0021] The utility model will be further explained in detail in connection with the drawings.

[0022] As Figures 1-4The illustrated one kind of combination mould of inner inlay reinforcing nylon rope T type packing includes lower mould 4, the bottom of lower mould 4 is processed with several symmetrically arranged lead-out pin step hole 11, lead-out pin step hole 11 is equipped with lead-out pin 5, while the top of lead-out pin step hole 11 is communicated with T type groove 12 arranged in the middle part of lower mould 4, the top of T type groove 12 is communicated with wedge-shaped recess 14 arranged in the top of lower mould 4, wedge-shaped recess 14 is inlaid with wedge-shaped boss 15 located below middle mould 2, the inclined surface 8 processed on the edge of wedge-shaped boss 15 is matched with the inclined surface of wedge-shaped recess 14;The center of middle mould 2 is provided with middle mould inlay strip cooperation cavity 9, and is connected with upper mould 1 on the top;The upper mould 1, middle mould 2 and lower mould 4 form product vulcanization plastic cavity;The T type groove 12 is equipped with second inlay strip 7, the top of second inlay strip 7 is provided with preformed rubber strip 16 embedded in middle mould inlay strip cooperation cavity 9, and the upper edge of preformed rubber strip 16 is provided with several semicircular grooves, and the semicircular grooves are inlaid with first inlay strip 6.

[0023] After the semicircular groove of preformed rubber strip 16 is placed with nylon rope, a layer of rubber is laid on the top of the nylon rope, and the nylon rope fixing strip 13 is formed by hot pressing through the upper mould 1, the middle mould 2, the lower mould 4 and the second inlay strip 7;In the product vulcanization plastic cavity formed by the combination of the upper mould 1, the middle mould 2 and the lower mould 4: the T type position of the lower mould 4 is filled with rubber, the middle mould inlay strip cooperation cavity 9 is filled with the nylon rope fixing strip 13 and forms the inner inlay reinforcing nylon rope T type packing 10 after vulcanization.

[0024] The upper surface of the lead-out pin 5 and the bottom of the T type groove 12 of the lower mould 4 are flush, the lower surface of the small head of the lead-out pin 5 and the bottom of the lower mould 4 are flush, and the cross section of the T type groove 12 is matched with the cross section shape of the second inlay strip 7.

[0025] The working process of the utility model is as follows:

[0026] As shown in the figure, Figure 2 , the utility model discloses a combination mould of inner inlay reinforcing nylon rope T type packing through inlaying second inlay strip 7 in T type groove 12 in lower mould 4 and inlaying first inlay strip 6 in middle mould inlay strip cooperation cavity 9 of middle mould 2, and the upper mould 1, the middle mould 2, the lower mould 4 and lead-out pin 5 form a nylon rope position fixed cavity, the mould in fixed cavity is heated, under certain pressure and time, a rubber strip with five semicircular grooves is formed, then first inlay strip 6 is taken out, five reinforcing nylon ropes are placed in five semicircular grooves, and another raw rubber strip is placed to cover five nylon ropes, then the nylon rope 3 is heated and fixed in the cavity formed by the upper mould 1, the middle mould 2, the second inlay strip 7 and the lower mould 4, and the nylon rope fixing strip 13 is formed, as shown in the figure, Figure 3 . Then the second inlay strip 7 in T type groove 12 is removed and replaced with raw rubber, and the workpiece is heated and vulcanized in the cavity formed by the combination of the upper mould 1, the middle mould 2 and the lower mould 4, and the inner inlay reinforcing nylon rope T type packing 10 is formed.

[0027] As shown in the figure, Figure 4As shown, after the vulcanization forming of the packing is completed, the inner embedded reinforced nylon rope T-shaped packing 10 is moved up on the bottom guide pin 5 of the lower mold 4, so that the inner embedded reinforced nylon rope T-shaped packing 10 is smoothly separated from the lower mold 4, and the quick part taking is completed.

[0028] Because the mold cavity formed by the upper mold 1, the middle mold 2, the lower mold 4, the first insert strip 6 and the second insert strip 7 pre-fixes the nylon rope 3 before the final forming of the inner embedded reinforced nylon rope T-shaped packing 10, after the first insert strip 6 and the second insert strip 7 are removed, the final product cavity formed by the upper mold 1, the middle mold 2 and the lower mold 4 is filled with rubber through the T-shaped part, the middle mold 2 is filled with the nylon rope fixing strip 13, and under the action of temperature, pressure and time, the flow of the glue no longer causes external extrusion to the nylon rope during the forming production of the final forming cavity, and the reinforced nylon rope is effectively fixed at the designed position.

[0029] The upper mold, the middle mold, the lower mold and the first insert strip and the second insert strip and the guide pin are used in cooperation to complete the first pre-forming of the inner embedded reinforced nylon rope T-shaped packing, the structure provides a pre-formed glue strip with a groove, and the preliminary position fixing of the nylon rope is ensured, and the phenomenon that the nylon rope is directly laid on the semi-finished rubber sheet in the prior art, and the nylon rope is broken, curled and deformed, and floated on the product surface during the flow of the glue is avoided. The upper mold, the middle mold, the lower mold and the first insert strip and the second insert strip and the guide pin are used in cooperation to complete the first pre-forming of the inner embedded reinforced nylon rope T-shaped packing, the structure provides a pre-formed glue strip with a groove, and the preliminary position fixing of the nylon rope is ensured, and the phenomenon that the nylon rope is directly laid on the semi-finished rubber sheet in the prior art, and the nylon rope is broken, curled and deformed, and floated on the product surface during the flow of the glue is avoided.

[0030] The above is only a preferred example of the utility model. It should be noted that for ordinary skilled persons in the art, under the technical inspiration provided by the utility model, as common knowledge in the mechanical field, other equivalent modifications and improvements can also be made, and should be regarded as the protection range of the utility model.

Claims

1. A combined mold for an inlaid reinforced nylon rope T-shaped packing, characterized in that: The lower die (4) is provided with a plurality of symmetrically arranged lead-out pin step holes (11) at the bottom, the top of the lead-out pin step holes (11) is communicated with a T-shaped groove (12) arranged in the middle of the lower die (4), the top of the T-shaped groove (12) is communicated with a wedge-shaped groove (14) arranged at the top of the lower die (4), the wedge-shaped groove (14) is embedded with a wedge-shaped boss (15) below the middle die (2), the slope (8) machined at the edge of the wedge-shaped boss (15) matches the slope of the wedge-shaped groove (14); the middle die (2) is provided with a middle die strip fitting cavity (9) at the center, and the upper die (1) is connected at the top; The T-shaped groove (12) is provided with a second strip (7), the upper part of the second strip (7) is provided with a preformed rubber strip (16) embedded in the middle die strip fitting cavity (9), a plurality of semicircular grooves are formed at the upper edge of the preformed rubber strip (16), and the first strip (6) is embedded in the semicircular groove.

2. The combined mold for inlaying and reinforcing the nylon T-type packing of claim 1, wherein: After the semicircular groove of the preformed rubber strip (16) is placed with a nylon rope, a layer of rubber is laid on the nylon rope, and a nylon rope fixing strip (13) is formed by hot pressing through the upper die (1), the middle die (2), the lower die (4) and the second strip (7); in the product vulcanization shaping cavity composed of the upper die (1), the middle die (2) and the lower die (4): the T-shaped position of the lower die (4) is filled with rubber, the middle die strip fitting cavity (9) is filled with the nylon rope fixing strip (13) and forms the inner embedded reinforced nylon rope T-shaped packing (10) through heat vulcanization.

3. The combined mold for the T-type packing of the internally inserted reinforced nylon rope according to claim 1 or 2, characterized in that: The lead-out pin step hole (11) is provided with a lead-out pin (5).

4. The combined mold of the inner embedded reinforced nylon rope T-shaped packing according to claim 3, characterized In the present application: The upper surface of the lead-out pin (5) is flush with the bottom of the T-shaped groove (12) of the lower die (4), and the lower surface of the small head of the lead-out pin (5) is flush with the bottom of the lower die (4).

5. The combined mold for inlaying and reinforcing the T-type packing of nylon rope according to claim 4, characterized in that: The cross section of the T-shaped groove (12) matches the cross section shape of the second strip (7). The cross section of the T-shaped groove (12) matches the cross section shape of the second strip (7).

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