CN220031010U

CN220031010U - Mould

Info

Publication number: CN220031010U
Application number: CN202321385165.6U
Authority: CN
Inventors: 尹蕾; 桂祝江; 周利文; 高承华
Original assignee: Shenzhen Wal Electric Power Technology Co ltd
Current assignee: Shenzhen Wal Electric Power Technology Co ltd
Priority date: 2023-06-01
Filing date: 2023-06-01
Publication date: 2023-11-17
Anticipated expiration: 2033-06-01

Abstract

The utility model discloses a die, which comprises a die plate, a core rod and an adjusting assembly, wherein the die plate is provided with a die cavity, the core rod is arranged in the die cavity, the adjusting assembly comprises a movable sleeve and an adjusting sleeve which are movably arranged in the die cavity, the movable sleeve is in abutting connection with the adjusting sleeve, the movable sleeve is provided with a first accommodating cavity, the adjusting sleeve is provided with a second accommodating cavity, the core rod sequentially penetrates through the first accommodating cavity and the second accommodating cavity, so that the die cavity, the core rod and the first accommodating cavity are enclosed to form a glue injection cavity, and an air passage communicated with the glue injection cavity is formed at the abutting part of the movable sleeve and the adjusting sleeve; wherein, adjusting sleeve drives movable sleeve and removes along the die cavity to the size of injecting glue chamber is adjusted. The utility model aims to solve the problems of exhaust and glue overflow generated by glue injection while realizing the adjustable length of a glue injection mold cavity.

Description

Mould

Technical Field

The utility model relates to the technical field of forming dies, in particular to a die.

Background

In modern times, rubber pipes are mainly produced by extrusion or compression molding tools, and the extruded rubber pipes are produced in a normal pressure state due to the vulcanization process, so that the electrical performance of products produced by the compression molding tools is poorer, and the high-performance rubber pipes can be obtained by adopting the compression molding tools. When the rubber tube is produced by the injection mold, quantitative rubber material is injected by pressure or a preformed semi-finished product is directly filled into a mold cavity, then the mold is closed, and the rubber material is subjected to compression vulcanization molding by an electric heating flat vulcanizing machine. However, the production mode is limited by the mold structure, the injection mode, the molding mode and the sizing material characteristic, the mold cavity size of the same set of mold is usually fixed, only rubber products with the same size can be produced, the setting of multiple sizes cannot be met, and a plurality of sets of molds are manufactured, disassembled and assembled in the production process, and the mold assembling machine is switched.

The production mode of the rubber tube can not produce rubber tubes with multiple sizes through a single die, greatly influences the production efficiency and the manufacturing cost of the rubber tube, and simultaneously has the problems of exhaust and glue overflow during glue injection.

Disclosure of Invention

The utility model mainly aims to provide a die, which aims to solve the problems of exhaust and glue overflow generated by glue injection while realizing the adjustable length of a glue injection die cavity.

To achieve the above object, the present utility model provides a mold comprising:

a template provided with a mold cavity;

the core rod is arranged in the die cavity; and

The adjusting assembly comprises a movable sleeve and an adjusting sleeve which are movably arranged in the die cavity, the movable sleeve is in butt connection with the adjusting sleeve, the movable sleeve is provided with a first accommodating cavity, the adjusting sleeve is provided with a second accommodating cavity, and the core rod sequentially penetrates through the first accommodating cavity and the second accommodating cavity, so that the die cavity, the core rod and the first accommodating cavity are enclosed to form a glue injection cavity, and an air passage communicated with the glue injection cavity is formed at the butt joint part of the movable sleeve and the adjusting sleeve;

the adjusting sleeve drives the movable sleeve to move along the die cavity so as to adjust the size of the glue injection cavity.

In an embodiment, the movable sleeve comprises a cylindrical part and a connecting table arranged at one end of the cylindrical part, the cylindrical part is provided with a first accommodating cavity, the connecting table is provided with a communication hole communicated with the first accommodating cavity, the core rod sequentially penetrates through the first accommodating cavity and the communication hole and stretches into the second accommodating cavity, the core rod is in butt joint with the hole wall of the communication hole and the cavity wall of the second accommodating cavity, and one end of the adjusting sleeve is in butt joint with the connecting table and forms the air passage.

In an embodiment, the adjusting sleeve is provided with a clamping groove near one end of the movable sleeve, the connecting table is provided with a clamping table, the clamping groove is matched with the clamping table in a clamping way, so that the first accommodating cavity is communicated with the second accommodating cavity through the communication hole, and the abutting part of the clamping groove and the clamping table forms the air passage.

In an embodiment, the adjusting sleeve comprises an adjusting part and a clamping block, a boss is arranged at one end of the adjusting part, the clamping block is provided with a recess, the boss is clamped in the recess, so that the adjusting part is connected with the clamping block and is matched with the second accommodating cavity, and the boss is matched with the recess to form a clamping groove.

In an embodiment, the boss is a first wedge structure, the clamping table is a second wedge structure, and the first wedge structure and the second wedge structure are matched and abutted and clamped in the recess.

In an embodiment, the clamping block is further provided with a through hole communicated with the second accommodating cavity;

and/or, the cross section of block is the semicircle setting, the both ends of block all are equipped with the recess, adjusting part corresponds each the recess is equipped with the boss, the connection platform corresponds each the recess is equipped with the card platform.

In an embodiment, the adjusting assembly further comprises a fixed sleeve, the fixed sleeve is arranged in the die cavity, and one end, far away from the movable sleeve, of the adjusting sleeve is arranged in the fixed sleeve in a penetrating mode and is in threaded connection with the fixed sleeve.

In an embodiment, a first boss is arranged on the outer wall of the fixed sleeve, the first boss is arranged around the outer wall of the fixed sleeve, a first recess is formed in the template, and the first boss is limited in the first recess;

and/or, the adjusting sleeve is provided with a threaded section and a limiting table which are connected, the limiting table surrounds the adjusting part, the inner wall of the fixing sleeve is provided with threads matched with the threaded section, and the threaded section penetrates through the fixing sleeve.

In an embodiment, the mold further includes a sleeve, the sleeve is sleeved at one end of the core rod away from the adjusting sleeve, and the sleeve is fixedly arranged in the mold cavity and is abutted to the mold plate, so that the sleeve, the mold cavity, the core rod and the first accommodating cavity enclose to form the glue injection cavity.

In an embodiment, a third boss is convexly arranged on the outer wall of the sleeve, the third boss is arranged around the outer wall of the sleeve, a third recess is correspondingly arranged on the template, and the third boss is limited in the third recess;

and/or, one end of the core rod, which is far away from the adjusting sleeve, is provided with a second boss, the second boss is arranged around the core rod, the template is correspondingly provided with a second recess, and the second boss is limited in the second recess;

and/or the template comprises an upper die and a lower die, and the upper die and the lower die are matched to form the die cavity.

According to the die, a core rod and an adjusting component are arranged in a die cavity, the adjusting component is arranged as a movable sleeve and an adjusting sleeve which are movably arranged in the die cavity, the movable sleeve is in butt connection with the adjusting sleeve, the movable sleeve is provided with a first accommodating cavity for the core rod to movably pass through, the adjusting sleeve is provided with a second accommodating cavity for the core rod to movably pass through, the core rod sequentially passes through the first accommodating cavity and the second accommodating cavity, so that the die cavity, the core rod and the first accommodating cavity are enclosed to form a glue injection cavity, and an air passage communicated with the glue injection cavity is formed at the butt joint of the movable sleeve and the adjusting sleeve, so that the adjusting sleeve drives the movable sleeve connected with the adjusting sleeve to move along the die cavity through moving the adjusting sleeve, and the purpose of adjusting the size of the glue injection cavity is achieved, and the purpose of producing rubber pipes with different sizes is achieved; meanwhile, the movable sleeve is in butt connection with the adjusting sleeve, so that an air passage is reserved between the movable sleeve and the adjusting sleeve, glue injection and air exhaust are facilitated, and meanwhile the problem of glue overflow during glue injection is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an exploded view of a mold in an embodiment of the utility model;

FIG. 2 is a schematic cross-sectional view of a mold according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an embodiment of the present utility model with the upper mold removed;

fig. 4 is a schematic exploded view of an adjusting assembly according to an embodiment of the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only 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 utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In modern times, rubber hoses are produced mainly by injection molding. When the rubber tube is produced by the injection molding die, quantitative rubber material is injected by pressure or a preformed semi-finished product is directly filled into a die cavity of the die, then the die is closed, and the rubber material is subjected to compression vulcanization molding by an electric heating flat vulcanizing machine. However, the production mode is limited by the mold structure, the injection mode, the molding mode and the sizing material characteristic, the mold cavity size of the same set of mold is usually fixed, only rubber products with the same size can be produced, the setting of multiple sizes cannot be met, and a plurality of sets of molds are manufactured, disassembled and assembled in the production process, and the mold assembling machine is switched.

Based on the above concepts and problems, the present utility model proposes a mold 100. It can be appreciated that the mold 100 can adjust the length of the glue injection cavity, and can also avoid the problems of air exhaust and glue overflow caused by glue injection.

Referring to fig. 1 to 4, the present utility model proposes a mold 100, where the mold 100 includes a mold plate 1, a mandrel 2 and an adjusting assembly 3, the mold plate 1 encloses to form a mold cavity 11, the adjusting assembly 3 includes a movable sleeve 4 and an adjusting sleeve 5 movably disposed in the mold cavity 11, the movable sleeve 4 is in abutting connection with the adjusting sleeve 5, the movable sleeve 4 is provided with a first accommodating cavity 41, the adjusting sleeve 5 is provided with a second accommodating cavity 51, the mandrel 2 sequentially penetrates through the first accommodating cavity 41 and the second accommodating cavity 51, so that the mold cavity 11, the mandrel 2 and the first accommodating cavity 41 enclose to form a glue injecting cavity 8, and an air passage 9 communicating the glue injecting cavity 8 is formed at the abutting position of the movable sleeve 4 and the adjusting sleeve 5; wherein, the adjusting sleeve 5 drives the movable sleeve 4 to move along the die cavity 11 so as to adjust the size of the glue injection cavity 8.

In the present embodiment, as shown in fig. 1 to 3, the adjusting component 3 is disposed at one end of the mold cavity 11, and in other embodiments, the adjusting component 3 may be disposed at two ends of the mold cavity 11. Specifically, the adjusting component 3 is used for adjusting the size of the glue injection cavity 8 so as to realize that a single mold 100 can produce pipe fitting products with various sizes, meanwhile, the movable sleeve 4 in the adjusting component 3 is in butt connection with the adjusting sleeve 5, and the butt part is provided with an air passage 9 communicated with the glue injection cavity 8 for exhausting during glue injection production so as to prevent the gas in the glue injection cavity 8 from affecting the glue injection molding effect. The die plate 1 is provided with a die cavity, the die cavity is enclosed to form a die cavity 11, after the die 100 is used for injecting glue, the whole glue injecting cavity 8 is filled with glue, the core rod 2 positioned in the die cavity 11 is covered by the glue, the core rod 2 positioned outside the die cavity 11 is still in an original state, a user can conveniently take the die, the die taking and the demolding are facilitated, the movable sleeve 4 is arranged in the die cavity 11 and provided with the first accommodating cavity 41, the core rod 2 is penetrated into the first accommodating cavity 41, the glue injecting cavity 8 is reserved between the inner wall of the first accommodating cavity 41 and the core rod 2, the movable sleeve 4 is used as a part of the die 100 and participates in shaping of the end part of a rubber tube, the adjusting sleeve 5 is provided with the second accommodating cavity 51, and the core rod 2 is penetrated into the second accommodating cavity 51. In this embodiment, the cavity wall that the second holds the chamber 51 and is close to die cavity 11 one end can with the butt of plug 2, further carry out spacingly to plug 2, and leave the clearance between the big majority cavity wall of second holds chamber 51 and the plug 2, thereby be convenient for adjust sleeve 5 and remove and adjust, the mould 100 is through adjusting sleeve 5 and the cooperation of movable sleeve 4 in the adjusting part 3, the adjustable length of injecting glue chamber 8 has been realized, a mould 100 can produce the rubber tube of multiple different sizes, simultaneously, adjusting sleeve 5 is connected with the butt of movable sleeve 4, the exhaust that probably produces and the problem of overflowing glue when still avoided die cavity 11 injecting glue.

In practical implementation, the cavities of the die plate 1 are combined to form a die cavity 11 and a through hole communicated with the die cavity 11, and the through hole can be arranged at one end or two ends of the die cavity 11, so that the core rod 2 can extend out of the die cavity 11 from one end or two ends, and a user can conveniently take the die and demold the die. The adjusting sleeve 5 is arranged at the through hole in a penetrating way, so that a user can hold the adjusting sleeve 5 and enable the adjusting sleeve 5 to extend into or extend out of the through hole, the movable sleeve 4 connected with the adjusting sleeve 5 is driven to axially move in the die cavity 11, the length of the glue injection cavity 8 is adjusted, the adjusting components 3 can be arranged at both ends of the core rod 2, and the die 100 can adjust the length of the glue injection cavity 8 and exhaust the glue injection process from both ends, so that the die 100 is suitable for more use environments. The two ends of the core rod 2 arranged in the die cavity 11 can be provided with die sleeves which participate in the molding of the end part of the rubber tube, so that the rubber material at the end part of the rubber tube is adhered to the die plate 1 when the rubber is prevented from being injected, and the integrity of the rubber tube is ensured while the demolding is facilitated.

In an embodiment, the movable sleeve 4 includes a cylindrical portion 42 and a connection table 43 disposed at one end of the cylindrical portion 42, the cylindrical portion 42 is formed with a first accommodating cavity 41, the connection table 43 is provided with a communication hole 431 for communicating with the first accommodating cavity 41, the mandrel 2 sequentially passes through the first accommodating cavity 41 and the communication hole 431 and extends into the second accommodating cavity 51, and the mandrel 2 abuts against a hole wall of the communication hole 431 and a cavity wall of the second accommodating cavity 51, one end of the adjusting sleeve 5 abuts against the connection table 43, and an air passage 9 is formed at the connection position.

In this embodiment, as shown in fig. 1 to 3, the movable sleeve 4 is provided with a cylindrical portion 42 and a connection table 43, the cylindrical portion 42 forms a first accommodating cavity 41 for the mandrel 2 to pass through, and the connection table 43 is used for abutting against the adjusting sleeve 5 and forming an air passage 9 at the abutting position for exhausting when the glue injection cavity 8 is used for injecting glue. The core rod 2 abuts against the hole wall of the communication hole 431 to prevent glue overflow during glue injection, and the core rod 2 abuts against the cavity wall of the second accommodating cavity 51 to also prevent glue overflow. The mold 100 is prevented from overflowing during glue injection, the production quality and the production efficiency of products are improved, meanwhile, the loss of raw materials and the mold 100 caused by overflowing glue is avoided, and the production cost is saved.

In practical implementation, the inner diameter of the communication hole 431 is smaller than the inner diameter of the cylindrical portion 42, the connection table 43 needs to be abutted against the mandrel 2, and a space needs to be left between the cylindrical portion 42 and the mandrel 2 to form a part of the glue injection cavity 8, the connection table 43 may be provided with a protrusion structure, one end of the adjusting sleeve 5 is correspondingly provided with a groove, and the protrusion structure and the groove may be transversely arranged along the die cavity 11, so that the connection table 43 and the adjusting sleeve 5 are in snap connection or insert connection.

In an embodiment, a clamping groove 52 is disposed at one end of the adjusting sleeve 5 near the movable sleeve 4, a clamping table 432 is disposed on the connecting table 43, the clamping groove 52 and the clamping table 432 are in clamping fit, so that the first accommodating cavity 41 is communicated with the second accommodating cavity 51 through the communication hole 431, and an air passage 9 is formed at the abutting position of the clamping groove 52 and the clamping table 432.

In this embodiment, as shown in fig. 1 to 4, the adjusting sleeve 5 is provided with a clamping groove 52, the connecting table 43 of the movable sleeve 4 is provided with a clamping table 432, the clamping groove 52 and the clamping table 432 can be in clamping fit, so that the adjusting sleeve 5 is in abutting connection with the movable sleeve 4, and the first accommodating cavity 41 and the second accommodating cavity 51 are also communicated, so that the core rod 2 can sequentially penetrate through the first accommodating cavity 41 and the second accommodating cavity 51, and an air passage 9 is formed at the abutting part of the clamping groove 52 and the clamping table 432 for exhausting when the glue injection cavity 8 is used for injecting glue.

In practical implementation, the clamping groove 52 of the adjusting sleeve 5 is clamped with the clamping table 432 of the connecting table 43 transversely along the die cavity 11, so that the adjusting sleeve 5 can drive the movable sleeve 4 to axially move along the die cavity 11, and the adjusting sleeve 5 is always in abutting connection with the movable sleeve 4 in the process that the adjusting sleeve 5 drives the movable sleeve 4 to axially move along the die cavity 11.

In an embodiment, the adjusting sleeve 5 includes an adjusting portion 53 and a locking block 54, one end of the adjusting portion 53 is provided with a boss 531, the locking block 54 is provided with a recess 541, the boss 531 is locked in the recess 541, so that the adjusting portion 53 is connected with the locking block 54 and cooperates with the locking block 54 to form the second accommodating cavity 51, and the boss 531 cooperates with the recess 541 to form the locking groove 52.

In this embodiment, as shown in fig. 1 to 4, the adjusting sleeve 5 includes an adjusting portion 53 and a locking block 54, the adjusting portion 53 is connected with the locking block 54 and forms a locking groove 52 matched with the locking block 432, the adjusting portion 53 is correspondingly provided with a boss 531 and a recess 541 with respect to the locking block 54, the adjusting portion 53 is connected with the locking block 54 by matching and abutting the boss 531 and the recess 541, so as to form a second accommodating cavity 51 and a gap communicating with the second accommodating cavity 51, and when the mold 100 is injected with glue, a part of the exhaust effect can be achieved.

In practical implementation, the adjusting portion 53 and the engaging block 54 may be connected by inserting the inserting end and the engaging end, or by fastening the adjusting portion and the engaging end by providing a buckle, which is not particularly limited herein.

In an embodiment, the boss 531 is a first wedge-shaped structure 534, the clamping platform 432 is a second wedge-shaped structure 433, and the first wedge-shaped structure 534 and the second wedge-shaped structure 433 are matched and abutted and clamped in the recess 541.

In this embodiment, as shown in fig. 1 to 4, the abutting part of the adjusting portion 53 and the movable sleeve 4 is provided with the first wedge structure 534 and the second wedge structure 433, the abutting part of the clamping block 54 and the first wedge structure 534 and the second wedge structure 433 is provided with the recess 541, the recess 541 can limit the first wedge structure 534 and the second wedge structure 433 at the same time, and the first wedge structure 534 and the second wedge structure 433 are abutted, so that the adjusting portion 53 is abutted to the movable sleeve 4, the clamping block 54 and the first wedge structure 534 and the second wedge structure 433 form a part of the second accommodating cavity 51, the cavity wall core rod 2 of the second accommodating cavity 51 is abutted to each other, glue overflow is avoided during glue injection, the cavity wall of the second accommodating cavity 51 is provided with a multi-section interface, and the arrangement of the first wedge structure 534, the second wedge structure 433 and the clamping block 54 also facilitates the connection of the adjusting sleeve 5 and the movable sleeve 4, and the first wedge structure 534 and the second wedge structure 433 of the movable sleeve 4 are easy to install and detach, and the second wedge structure 433 of the adjusting sleeve 5 are easy to produce.

In practical implementation, the slopes of the first wedge structure 534 and the second wedge structure 433 are set according to the actual requirement of the abutment tightness degree of the adjusting sleeve 5 and the movable sleeve 4, which is not limited herein.

In one embodiment, the engaging block 54 is further provided with a through hole 542 communicating with the second accommodating cavity 51; and/or the cross section of the clamping block 54 is arranged in a semicircle, both ends of the clamping block 54 are provided with the concave holes 541, the adjusting part 53 is provided with a boss 531 corresponding to each concave hole 541, and the connecting table 43 is provided with a clamping table 432 corresponding to each concave hole 541.

In this embodiment, as shown in fig. 1 to 4, the through hole 542 formed by the clamping block 54 is used for exhausting the communication cavity, so as to avoid the problem of exhausting the mold cavity 11 during the molding process of the mold 100, and ensure the structural integrity of the molding rubber pipe by filling the rubber material into the molding rubber cavity 8 and filling the molding rubber pipe. The block 54 is the semicircle setting, is connected with movable sleeve 4, adjusting sleeve 5 cooperation, the mould of mould 1 of being convenient for, block 54 and the inner wall butt of die cavity 11 avoid block 54 to take place not hard up when using, influence movable sleeve 4 and adjusting sleeve 5's connection, and block 54's both ends all are equipped with sunken 541, make movable sleeve 4 and adjusting sleeve 5 butt connect more firmly.

In an embodiment, the adjusting assembly 3 further includes a fixed sleeve 6, the fixed sleeve 6 is disposed in the mold cavity 11, and an end of the adjusting sleeve 5 away from the movable sleeve 4 is disposed in the fixed sleeve 6 in a penetrating manner and is in threaded connection with the fixed sleeve 6.

In this embodiment, as shown in fig. 2 and 3, the fixing sleeve 6 is used to cooperate with the adjusting sleeve 5 to limit the adjusting range of the adjusting sleeve 5, so as to avoid the adjusting sleeve 5 extending completely into or out of the mold cavity 11 and losing the function of adjusting the length of the glue injection cavity 8. The fixed sleeve 6 is fixedly arranged in the die cavity 11, the adjusting sleeve 5 can axially move relative to the fixed sleeve 6, the adjusting sleeve 5 is in threaded connection with the fixed sleeve 6, the adjusting sleeve 5 can adjust the length of the glue injection cavity 8 by screwing in or screwing out the fixed sleeve 6, the screwing in or screwing out length of the adjusting sleeve 5 can be judged, a user can adjust the length of the glue injection cavity 8 in a targeted manner conveniently, after the adjusting sleeve 5 is adjusted in the length of the glue injection cavity 8, the fixed sleeve 6 can limit the adjusting sleeve 5, the adjusting sleeve 5 is prevented from axially moving in the glue injection process of the die 100, and the size of a practically produced glue pipe is inconsistent with an expected one.

In practical implementation, the fixing sleeve 6 can be clamped in the template 1 through the detachable buckle, so that the fixing sleeve 6 is fixedly arranged in the die cavity 11, or a protruding structure and a recessed structure are arranged on the fixing sleeve 6 and the template 1, the fixing sleeve 6 arranged in the die cavity 11 is limited, the inner wall of the fixing sleeve 6 can be provided with a friction structure corresponding to the adjusting sleeve 5, after the length of the glue injection cavity 8 of the adjusting sleeve 5 is adjusted, the adjusting sleeve 5 is limited in the fixing sleeve 6 due to friction force and cannot axially move, and the special limitation is not made herein.

In an embodiment, the outer wall of the fixing sleeve 6 is provided with a first boss 61, the first boss 61 is arranged around the outer wall of the fixing sleeve 6, the template 1 is provided with a first recess 111, and the first boss 61 is limited in the first recess 111; and/or, adjusting sleeve 5 is equipped with screw thread section 532 and spacing platform 533 that are connected, and spacing platform 533 encircles adjusting part 53 setting, and the inner wall of fixed sleeve 6 is equipped with screw thread section 532 complex screw thread, and screw thread section 532 wears to locate fixed sleeve 6.

In this embodiment, as shown in fig. 1 to 4, the fixing sleeve 6 is provided with a first boss 61 in a surrounding manner, and a first recess 111 is provided at a position corresponding to the position of the template 1 abutting against the first boss 61 after surrounding, and the first boss 61 is in limit fit with the first recess 111, so that the fixing sleeve 6 can be limited in the mold cavity 11, and the movement of the fixing sleeve 6 in the process of injecting the glue is prevented, so that the adjustment length of the glue injecting cavity 8 is misaligned. When the adjusting sleeve 5 is matched with the fixed sleeve 6 through threads, the adjusting sleeve 5 can be screwed in or out of the threaded section 532 of the adjusting sleeve 5 in the fixed sleeve 6 to drive the movable sleeve 4 to be far away from or close to the through hole, so that the length of the glue injection cavity 8 is reduced or increased, simultaneously, after the length of the glue injection cavity 8 is adjusted, the threaded section 532 of the adjusting sleeve 5 stops rotating in the fixed sleeve 6, the threads of the threaded section 532 are clamped with the threads in the fixed sleeve 6 to limit the adjusting sleeve 5, so that the adjusting sleeve 5 cannot move in the axial direction, and meanwhile, a user can judge the length of the adjusting sleeve 5 extending into or extending out of the die cavity 11 according to the number of the threads of the threaded section 532, so that the length of the glue injection cavity 8 can be accurately adjusted.

In practical implementation, the screw pitch of the screw thread section 532 of the adjusting sleeve 5 can be set according to the minimum precision of adjusting the length of the glue injection cavity 8, the scale of the adjusting length of the adjusting sleeve 5 can be directly printed on the screw thread section 532, so that a user can directly confirm the real-time adjusting length of the glue injection cavity 8, a grip piece is arranged at one end of the adjusting sleeve 5 far away from the movable sleeve 4, and the user can hold and rotate the adjusting sleeve 5 conveniently, without being limited in detail.

In an embodiment, the mold 100 further includes a sleeve 7, the sleeve 7 is sleeved on one end of the mandrel 2 away from the adjusting sleeve 5, and the sleeve 7 is fixedly disposed in the mold cavity 11 and abuts against the mold plate 1, so that the sleeve 7, the mold cavity 11, the mandrel 2 and the first accommodating cavity 41 enclose to form the glue injecting cavity 8.

In this embodiment, as shown in fig. 1 to 3, the setting of the sleeve 7 can limit the core rod 2, so that the core rod 2 is limited in the die cavity 11, meanwhile, the sleeve 7 also participates in the molding process of the rubber tube, and has a molding effect on the end part of the rubber tube, when the setting of the sleeve 7 avoids the rubber material at the end part of the rubber tube being adhered to the template 1 during the rubber injection, the integrity of the rubber tube is ensured while the demolding of a user is convenient, the core rod 2, the sleeve 7, the movable sleeve 4 and the die cavity 11 between the sleeve 7 and the movable sleeve 4 form a rubber injection cavity 8, and the adjusting part of the sleeve 5 is the length of the die cavity 11 between the sleeve 7 and the movable sleeve 4, so that the size of the rubber injection cavity 8 can be adjusted by adjusting the sleeve 5, thereby adapting to the production needs of pipes with different sizes.

In practical implementation, the sleeve 7 may be detachably fastened to the mold plate 1, so as to be fixedly disposed in the mold cavity 11, or a protrusion and a recess structure are disposed on the sleeve 7 and the mold plate 1, so that the sleeve 7 disposed in the mold cavity 11 is limited, which is not limited herein.

In an embodiment, the outer wall of the sleeve 7 is convexly provided with a third boss 71, the third boss 71 is arranged around the outer wall of the sleeve 7, the template 1 is correspondingly provided with a third recess 113, and the third boss 71 is limited in the third recess 113; and/or, one end of the core rod 2 far away from the adjusting sleeve 5 is provided with a second boss 21, the second boss 21 is arranged around the core rod 2, the template 1 is correspondingly provided with a second recess 112, and the second boss 21 is limited in the second recess 112; and/or the die plate 1 comprises an upper die 12 and a lower die 13, and the upper die 12 and the lower die 13 are matched to form a die cavity 11.

In this embodiment, as shown in fig. 1 and 2, the second boss 21 is disposed around the core rod 2, the third boss 71 is disposed around the sleeve 7, the second recess 112 is disposed corresponding to the position where the second boss 21 abuts after the die plate 1 is enclosed, the third recess 113 is disposed corresponding to the position where the second boss 21 abuts, the second boss 21 and the second recess 112 are in limit fit, so that the core rod 2 can be limited in the die cavity 11, the third boss 71 and the third recess 113 are in limit fit, so that the sleeve 7 can be limited in the die cavity 11, during the injection of the glue in the die cavity 11, the core rod 2 and the sleeve 7 do not move, the length of the glue injection cavity 8 is prevented from being affected, and the length of the glue injection cavity 8 remains unchanged in the glue injection process, so as to produce the glue tube meeting the size requirement.

In practical implementation, the second boss 21 is tightly abutted against the cavity wall of the second recess 112 or a rubber ring is arranged at the abutting position of the second boss 21 and the second recess 112, the third boss 71 is tightly abutted against the cavity wall of the third recess 113 or a rubber ring is arranged at the abutting position of the third boss 71 and the third recess 113, and the friction force between the second boss 21, the third boss 71 and the second recess 112 and the third recess 113 is enhanced, so that the movement of the core rod 2 or the sleeve 7 when the axial movement of the adjusting sleeve 5 is used for adjusting the length of the glue injection cavity 8 or when the length adjustment of the glue injection cavity 8 is completed for injecting glue is prevented, the length of the adjusted glue injection cavity 8 is influenced, and the accuracy of the size of a generated glue pipe is influenced.

In this embodiment, as shown in fig. 2, the die plate 1 includes an upper die 12 and a lower die 13, and the upper die 12 and the lower die 13 are provided with a die groove and enclose a die cavity 11. The upper die 12 and the lower die 13 are symmetrically arranged, the die grooves are combined to form a die cavity 11, and the through holes can be arranged at two ends of the die cavity 11, so that the core rod 2 can extend out of the die cavity 11 from the two ends, and a user can conveniently take out the die and take out the die.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A mold, the mold comprising:

a template provided with a mold cavity;

the core rod is arranged in the die cavity; and

2. The die set according to claim 1, wherein the movable sleeve includes a cylindrical portion and a connecting table provided at one end of the cylindrical portion, the cylindrical portion is formed with the first accommodation chamber, the connecting table is provided with a communication hole communicating with the first accommodation chamber, the core rod sequentially passes through the first accommodation chamber and the communication hole and extends into the second accommodation chamber, the core rod abuts against a wall of the communication hole and a wall of the second accommodation chamber, and one end of the adjusting sleeve abuts against the connecting table and forms the air passage.

3. The die of claim 2, wherein a clamping groove is formed in one end, close to the movable sleeve, of the adjusting sleeve, a clamping table is arranged on the connecting table, the clamping groove is matched with the clamping table in a clamping mode, the first accommodating cavity is communicated with the second accommodating cavity through the communication hole, and the abutting part of the clamping groove and the clamping table forms the air passage.

4. A mould according to claim 3, wherein the adjustment sleeve comprises an adjustment portion and a clamping block, one end of the adjustment portion is provided with a boss, the clamping block is provided with a recess, the boss is clamped in the recess, so that the adjustment portion is connected with the clamping block and is matched with the clamping block to form the second accommodating cavity, and the boss is matched with the recess to form a clamping groove.

5. The mold of claim 4, wherein the boss is a first wedge-shaped structure and the clip is a second wedge-shaped structure, the first wedge-shaped structure and the second wedge-shaped structure being in mating abutment and snap-fit to the recess.

6. The mold of claim 5, wherein the engagement block is further provided with a through hole communicating with the second accommodation chamber;

7. The mold of claim 6, wherein the adjustment assembly further comprises a fixed sleeve disposed within the mold cavity, and wherein an end of the adjustment sleeve remote from the movable sleeve is threaded into the fixed sleeve and is threadably engaged with the fixed sleeve.

8. The die of claim 7, wherein the outer wall of the fixed sleeve is provided with a first boss, the first boss is arranged around the outer wall of the fixed sleeve, the die plate is provided with a first recess, and the first boss is limited in the first recess;

9. The die of any one of claims 1 to 8, further comprising a sleeve, wherein the sleeve is sleeved at an end of the mandrel remote from the adjustment sleeve, and the sleeve is fixedly arranged in the die cavity and abuts against the die plate, so that the sleeve, the die cavity, the mandrel and the first accommodating cavity enclose the glue injection cavity.

10. The die of claim 9, wherein a third boss is convexly arranged on the outer wall of the sleeve, the third boss is arranged around the outer wall of the sleeve, the die plate is correspondingly provided with a third recess, and the third boss is limited in the third recess;