Adjustable doubling die

Abstract

According to the adjustable doubling die provided by the utility model, through the L-shaped arc-shaped positioning block, rotary clamping connection of the general fixed die and the movable inner die can be realized, and meanwhile, circumferential clamping connection is changed into unidirectional clamping connection, so that the size and the strength of a positioning assembly are improved; the situation that the universal fixed mold and the movable inner mold are separated due to the fact that the positioning piece is broken in the cabling process of the wire core is avoided; according to the specific technical scheme, the mold comprises a universal fixed mold and a movable inner mold; the universal fixed mold and the movable inner mold are connected and fixed through a pair of locking and positioning mechanisms, and each locking and positioning mechanism comprises an arc-shaped positioning block and an arc-shaped clamping groove; the arc-shaped positioning block is made of an L-shaped steel plate, the arc-shaped positioning block is arranged on the end face of the universal fixed mold, a pair of arc-shaped clamping grooves are formed in the end, connected with the universal fixed mold, of the movable inner mold, and the arc-shaped positioning block and the arc-shaped clamping grooves are matched with each other and used for conducting matched positioning clamping connection on the universal fixed mold and the movable inner mold.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and particularly relates to an adjustable wire combining die. Background Art

[0002] The statements in this part only provide background technical information related to the utility model, and do not necessarily constitute prior art.

[0003] In the production process of wire and cable, the wire combining die plays a key role. It combines multiple insulated wire cores together, fills them with non-wetting materials, and forms the cable into a circular shape for subsequent wrapping. However, if the wire combining die is not reasonably designed and the wire entry angle is too small, it will scratch the wire core. At the same time, in actual production, there is a problem of changing specifications. Different specifications use different wire combining dies. Generally, when selecting a die, it is 2-4 mm larger than the cable core. If the replacement is frequent, it will waste a lot of time and affect production efficiency.

[0004] At present, the existing wire and cable stranding die is fixedly connected by a rotating locking structure between the bases of the sleeve dies which are embedded and sleeved front and back. The rotating locking structure includes a bottom T-shaped column, a T-shaped arc groove matching the T-shaped column, and a notch socket formed at the opening of the T-shaped arc groove. The problem with this locking method is that the limiting structure of the T-shaped column is circumferentially clamped at 360 degrees, but the problem is that the strength of the positioning part to prevent relative rotation between the basic die and the sleeve die is insufficient, resulting in the fracture of the positioning part during the stranding process of the wire core and the separation between the basic die and the sleeve die.

[0005] Therefore, there is an urgent need for a cable wire combining die that can solve the above deficiencies. Summary of the Utility Model

[0006] In view of the above problems, the utility model provides an adjustable wire combining die. Through the L-shaped arc-shaped positioning block, the rotation and clamping of the general fixed die and the movable inner die can be realized, and at the same time, the circumferential clamping is changed to one-way clamping, which improves the size and strength of the positioning component, and avoids the separation of the general fixed die and the movable inner die caused by the fracture of the positioning part during the stranding process of the wire core.

[0007] To achieve the above object, the utility model adopts the following technical solutions:

[0008] An adjustable wire combining die, comprising: a general fixed die and a movable inner die;

[0009] The general fixed die and the movable inner die are fixedly connected through a locking and positioning mechanism. A pair of locking and positioning mechanisms are symmetrically arranged. The locking and positioning mechanism includes an arc-shaped positioning block and an arc-shaped card slot;

[0010] The arc-shaped positioning block is made of an L-shaped steel plate. The arc-shaped positioning block is arranged on the end face of the general fixing die. A pair of arc-shaped chucks are arranged at one end of the movable inner die connected to the general fixing die. The arc-shaped positioning block and the arc-shaped chucks are mutually adapted for the cooperative positioning and clamping connection of the general fixing die and the movable inner die.

[0011] Furthermore, the two side faces of the arc-shaped positioning block are arc surfaces, and the arc-shaped positioning block is arranged on the end face of the general fixing die.

[0012] Furthermore, the arc-shaped chucks arranged on the movable inner die include an internal structure and an external structure. The external structure is a socket, and the opening size is matched with the size of the arc-shaped positioning block. The internal structure is a chuck, and the chucks are distributed on the left and right sides of the socket.

[0013] Furthermore, the socket and the chucks are arranged in an arc shape on the end face of the movable inner die. The socket and the chucks are concentric with the center of the movable inner die, and the arc radii of the socket and the chucks are the same.

[0014] Furthermore, the arc formed by the arc-shaped positioning block and the arc formed by the arc-shaped chucks have the same radius.

[0015] Furthermore, one end of the L-shaped steel plate is connected to the general fixing die as a fixed end, and the other end is a free end.

[0016] Furthermore, a through hole is axially arranged in the core part of the general fixing die as a wire hole, and a chamfer is arranged at one end of the wire hole close to the arc-shaped positioning block.

[0017] Furthermore, a through hole is axially arranged in the core part of the movable inner die, which is divided into a deformation hole and a sizing hole. The deformation hole is arranged at one end far from the general fixing die, and the sizing hole is arranged at one end close to the general fixing die.

[0018] Furthermore, the deformation hole is a conical through hole, and the apex angle of the conical through hole is less than 60 degrees.

[0019] Furthermore, a sloping boss adapted to the chamfer of the wire hole is also arranged at one end of the movable inner die close to the general fixing die.

[0020] Compared with the prior art, the advantages and positive effects of the present utility model are:

[0021] In the present utility model, the general fixed mold and the movable inner mold are connected and fixed through an arc-shaped positioning block and an arc-shaped slot. The arc-shaped positioning block is made of an L-shaped steel plate, and the two side surfaces of the arc-shaped positioning block are arc surfaces. A pair of arc-shaped slots are arranged at one end of the movable inner mold connected to the general fixed mold for cooperating with the arc-shaped positioning block for positioning and clamping, so as to realize quick switching of multiple specifications; by passing the L-shaped steel plate through the socket on the movable inner mold and clamping it in the slot, the connection reliability between the general fixed mold and the movable inner mold is ensured, and further quick switching of movable inner molds of multiple specifications is realized; since no limiting components are arranged on the two side surfaces of the L-shaped steel plate of the arc-shaped positioning block, and further the thickness of all positions of the L-shaped steel plate of the arc-shaped positioning block is the same, while ensuring the connection reliability between the general fixed mold and the movable inner mold, the torsional resistance of the arc-shaped positioning block during the rotation of the movable inner mold is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0023] Figure 1 is a schematic diagram of the adjustable wire combining mold of the present utility model

[0024] Figure 2 is a schematic diagram of the structure of the movable inner mold of the present utility model

[0025] Figure 3 is a schematic diagram of the structure of the general fixed mold of the present utility model

[0026] Figure 4 is a schematic diagram of the principle of cable wire combining of the present utility model

[0027] In the figure: 1 is the movable inner mold; 2 is the general fixed mold; 3 is the deformation hole; 4 is the sizing hole; 5 is the arc-shaped slot; 6 is the arc-shaped positioning block; 7 is the wire hole; 8 is the wire dividing plate; 9 is the wire core. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present utility model. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0029] The following will describe the present utility model in detail with reference to the accompanying drawings. An adjustable wire combining mold disclosed in this embodiment is as Figures 1-3As shown in the figure, it includes a general fixed mold 2 fixedly connected to the device and a movable inner mold 1 detachably connected to the general fixed mold 2. The general fixed mold 2 is cylindrical, and the movable inner mold 1 is T-shaped cylindrical. The general fixed mold 2 and the movable inner mold 1 are connected and fixed through a locking and positioning mechanism. A pair of locking and positioning mechanisms are symmetrically arranged. The locking and positioning mechanism includes an arc-shaped positioning block 6 and an arc-shaped card slot 5. The arc-shaped positioning block is made of an L-shaped steel plate. The two side surfaces of the arc-shaped positioning block 6 are arc surfaces. The arc-shaped positioning block 6 is arranged on the end surface of the general fixed mold 2. A pair of arc-shaped card slots 5 are arranged at one end of the movable inner mold 1 connected to the general fixed mold 2 for positioning and clamping with the arc-shaped positioning block 6 to achieve rapid switching of multiple specifications.

[0030] The arc-shaped card slot 5 provided on the movable inner mold 1 includes internal and external structures. The external structure is a socket, and the opening size matches the size of the arc-shaped positioning block 6. The internal structure is a card slot, and the card slots are distributed on the left and right sides of the socket. The socket and the card slots are circularly distributed on the movable inner mold 1. The socket and the card slots are concentric with the center of the movable inner mold 1, and the circular arc radii of the socket and the card slots are the same. Due to the cooperation of the arc-shaped positioning block 6 and the arc-shaped card slot 5, the circular arc radii of the arc-shaped positioning block 6 and the arc-shaped card slot 5 are the same. The free end of the L-shaped steel plate of the arc-shaped positioning block 6 passes through the socket on the movable inner mold 1 and is clamped with the card slot to ensure the connection reliability between the general fixed mold 2 and the movable inner mold 1, and further realize the rapid switching of the movable inner mold 1 of multiple specifications.

[0031] The end of the L-shaped steel plate of the arc-shaped positioning block 6 connected to the general fixed mold 2 is the fixed end. When the arc-shaped positioning block 6 is inserted into the arc-shaped card slot 5, the fixed end of the arc-shaped positioning block 6 is used to prevent relative rotation between the general fixed mold 2 and the movable inner mold 1 during rotation. The free end of the L-shaped steel plate of the arc-shaped positioning block 6 is used to ensure the connection reliability between the general fixed mold 2 and the movable inner mold 1. A one-way lock is formed between the general fixed mold 2 and the movable inner mold 1. No limiting components need to be provided on the two circular arc surfaces of the L-shaped steel plate of the arc-shaped positioning block 6. Further, the right-angle position and the fixed end of the L-shaped steel plate of the arc-shaped positioning block 6 are set to the same thickness to further improve the anti-torsion ability of the arc-shaped positioning block 6 when the movable inner mold 1 rotates.

[0032] A through hole for a wire hole 7 is axially provided in the core of the general fixed mold 2. A chamfer is provided at one end of the wire hole 7 close to the arc-shaped positioning block 6 for positioning with the general fixed mold 2 when installing the movable inner mold 1. A through hole is axially provided in the core of the movable inner mold 1, which is divided into two parts: a deformation hole 3 and a sizing hole 4. The deformation hole 3 is arranged at the end far from the general fixed mold 2, and the sizing hole 4 is arranged at the end close to the general fixed mold 2. The deformation hole 3 is a conical through hole, and the apex angle of the cone is less than 60 degrees, which is used to prevent the wire core 9 from being scratched and guide the cable into the sizing hole 4 for wire merging. An inclined convex platform adapted to the chamfer is also provided at one end of the movable inner mold 1 close to the general fixed mold 2.

[0033] Working principle:

[0034] When replacing the movable inner mold 1 of different specifications, rotate the movable inner mold 1 clockwise, take out the movable inner mold 1, remove the original movable inner mold 1 installed on the general fixed mold 2, position the installation position of the movable inner mold 1 of other specifications through the chamfer of the general fixed mold 2, insert the arc-shaped limit block into the arc-shaped card slot 5, and rotate the movable inner mold 1 counterclockwise to achieve the specification switching. This process is only applicable to the case where the general fixed mold 2 rotates counterclockwise during the working process; since the internal card slots of the arc-shaped card slot 5 are distributed on both sides of the socket, only by setting the free end of the L-shaped steel plate of the arc-shaped positioning block 6 in the reverse direction, it can be applicable to the case where the general fixed mold 2 rotates clockwise during the working process. The rotation direction of the process of replacing the movable inner mold 1 is opposite to that of the above replacement process.

[0035] As Figure 4 shown, when the wire and cable are stranding, multiple insulated wire cores 9 are payed off through the pay-off stand, and the wire cores 9 pass through the dividing plate 8 in sequence, wrap the insulation and filler on each wire core 9, enter the bunching die at an angle not exceeding 60°, and then twist and strand with a certain pitch.

[0036] Although the specific implementation manners of the present invention are described above in conjunction with the drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative labor are still within the protection scope of the present invention.

Claims

1. An adjustable parallel line mold, characterized in that: Including universal fixed mold and movable inner mold; The universal fixed mold and the movable inner mold are connected and fixed by a locking and positioning mechanism, and a pair of the locking and positioning mechanisms are symmetrically arranged, and the locking and positioning mechanisms include an arc-shaped positioning block and an arc-shaped slot; The arc-shaped positioning block is made of an L-shaped steel plate and is arranged on the end face of the universal fixed mold. A pair of arc-shaped slots are arranged at one end of the movable inner mold connected to the universal fixed mold. The arc-shaped positioning block and the arc-shaped slots are adapted to each other and are used for matching, positioning and clamping the universal fixed mold and the movable inner mold.

2. The adjustable parallel line mold according to claim 1, characterized in that: The two side surfaces of the arc-shaped positioning block are arc surfaces, and the arc-shaped positioning block is arranged on the end surface of the universal fixed mold.

3. The adjustable parallel line mold according to claim 1, characterized in that: The arc-shaped slot arranged on the movable inner mold includes an internal structure and an external structure, the external structure is a socket and the opening size matches the size of the arc-shaped positioning block, and the internal structure is a slot, and the slots are distributed on the left and right sides of the socket.

4. The adjustable parallel line mold according to claim 3, characterized in that: The socket and the slot are arranged in an arc shape on the end surface of the movable inner mold. The socket and the slot are concentric with the center of the movable inner mold, and the arc radius of the socket and the slot is the same.

5. The adjustable parallel line mold according to claim 1, characterized in that: The arc of the arc-shaped positioning block has the same radius as the arc formed by the arc-shaped clamping groove.

6. The adjustable paralleling die according to claim 1, characterized in that: One end of the L-shaped steel plate is connected to the universal fixing mold as a fixed end, and the other end is a free end.

7. The adjustable parallel line mold according to claim 1, characterized in that: The universal fixed mold core part is axially provided with a through hole as a wire hole, and a chamfer is provided at one end of the wire hole close to the arc-shaped positioning block.

8. The adjustable paralleling die according to claim 1, characterized in that: The movable inner mold core is axially provided with a through hole, which is divided into a deformation hole and a sizing hole. The deformation hole is arranged at an end away from the universal fixed mold, and the sizing hole is arranged at an end close to the universal fixed mold.

9. The adjustable paralleling die according to claim 8, characterized in that: The deformation hole is a conical through hole, and the top angle of the conical through hole is less than 60 degrees.

10. The adjustable paralleling die according to claim 7, characterized in that: An end of the movable inner mold close to the universal fixed mold is also provided with an inclined boss matched with the chamfer of the wire hole.

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