Mold structure for injection molding of gauge rod

Abstract

The utility model discloses a mold structure for injection molding of a gauge rod, and mainly relates to the field of gauge rods. Comprising a fixing frame, an insulating sleeve bottom die and a plurality of pull rod bottom dies which are coaxially distributed are arranged on the fixing frame, the insulating sleeve bottom die is fixedly connected with the fixing frame, the pull rod bottom dies are symmetrically arranged on the two sides of the insulating sleeve bottom die, a plurality of sliding seats are symmetrically connected to the fixing frame in a sliding mode in the transverse direction, and vertical adjusting rods are connected to the sliding seats in a threaded mode. The top of the adjusting rod is rotationally connected with the bottom of the pull rod bottom die, a plurality of guide rods are arranged on the pull rod bottom die and slidably connected with the sliding seat in the vertical direction, and a positioning assembly used in cooperation with the sliding seat is arranged on the fixing frame. The injection mold has the beneficial effects that the technical problem that the injection molding quality is influenced due to the fact that the pull rod is easily staggered relative to the insulating sleeve when the gauge rods of different models are subjected to injection molding operation by the existing injection mold can be solved, so that the pull rod after injection molding is kept in a coaxial state with the insulating sleeve, and the product quality of the insulated gauge rods after injection molding is ensured.

Description

Technical Field

[0001] The utility model relates to the field of gauge rods, in particular to a mold structure for injection molding of gauge rods. Background Art

[0002] The gauge rod is a rod that connects two rails at the bottom of the rail to improve the lateral stability of the rail and the ability of the track to maintain the track gauge. Some lines have track circuits, and the gauge rod is separated by insulating parts. The insulating parts of some insulating gauge rods are fixed to the insulating sleeve and the rod by injection molding. In the existing injection molding process of insulating parts, since the diameters and lengths of different gauge rods are different, when the existing injection mold is used to perform injection molding operations on insulating gauge rods of different sizes and lengths, the rod is easily misaligned and tilted with the insulating sleeve after the mold position is adjusted, resulting in the two being not on the same axis, so that the positions of the rods on both sides of the injection-molded insulating gauge rod are different, which affects the effect of connecting the rails on both sides, affects the lateral stability of the track, and reduces the safety of trains running on rails. Utility Model Content

[0003] The utility model aims to provide a mold structure for gauge rod injection molding, which can solve the technical problem that the pull rod is easily misaligned with the insulating sleeve during the injection molding operation of different types of gauge rods by the existing injection mold, thereby affecting the injection molding quality, and ensure the stability of the relative position of the pull rod and the insulating sleeve, so that the pull rod maintains a coaxial state with the insulating sleeve after injection molding, thereby ensuring the product quality of the insulated gauge rod after injection molding.

[0004] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A mold structure for gauge rod injection molding, including a fixed frame, on which a coaxially distributed insulating sleeve bottom mold and a plurality of pull rod bottom molds are provided, the insulating sleeve bottom mold is fixedly connected to the fixed frame, the pull rod bottom mold is symmetrically arranged on both sides of the insulating sleeve bottom mold, the fixed frame is symmetrically connected to a plurality of slide seats along the horizontal sliding connection, the slide seat is threaded with a vertical adjustment rod, the top of the adjustment rod is rotatably connected to the bottom of the pull rod bottom mold, the pull rod bottom mold is provided with a plurality of guide rods, the guide rods are vertically slidably connected to the slide seat, and the fixed frame is provided with a positioning assembly used in conjunction with the slide seat.

[0006] Furthermore, the fixing frame is provided with a slide groove extending laterally, the slide seat is slidably connected in the slide groove, and the positioning assembly is arranged in the slide groove.

[0007] Furthermore, guide grooves are symmetrically provided on the side walls of the slide groove, guide blocks are symmetrically provided on both sides of the slide seat, the guide blocks are slidably connected in the guide grooves, and the positioning assembly is used in conjunction with the guide blocks.

[0008] Furthermore, the positioning assembly includes a suction plate, which is connected in the guide groove along a transverse sliding manner, and the suction plate is magnetically attracted to the guide block. The fixing frame is provided with a power rod for driving the suction plate to slide.

[0009] Furthermore, the power rod passes through the fixing frame and is slidably connected thereto. After passing through the fixing frame, the power rod is connected to the suction plate. A compression spring is provided between the suction plate and the side wall of the guide groove.

[0010] Furthermore, there are at least two tie rod bottom molds on each side.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The structure of the utility model is that an insulating sleeve bottom mold is fixedly arranged on a fixed frame for placing the insulating sleeve, and multiple tie rod bottom molds are symmetrically arranged on both sides of the insulating sleeve bottom mold for placing the tie rods. Even when injection molding gauge rods of different lengths and diameters, the height of the tie rod bottom mold can be adjusted vertically to adapt to the relative positions of the insulating sleeve and the tie rod, and the position of the tie rod bottom mold can be adjusted horizontally so that it can support tie rods of different lengths, thereby ensuring that when injection molding gauge rods of different models are performed, even after the mold position is adjusted, the tie rod can always maintain a coaxial state with the insulating sleeve, so that the tie rod positions on both sides of the injection-molded gauge rod are consistent, thereby ensuring the quality of the injection-molded product, achieving effective restriction on the gauge of the steel rails on both sides, and ensuring the safety of driving;

[0013] 2. A plurality of slide seats are slidably arranged on the fixed frame, a vertical adjusting rod is threadedly connected to the slide seat, the top of the adjusting rod is rotatably connected to the bottom of the tie rod bottom mold, and a plurality of guide rods are arranged at the bottom of the tie rod bottom mold, the guide rods are slidably connected to the slide seat vertically, and a positioning assembly used in conjunction with the slide seat is arranged on the fixed frame. Such a structure can make the tie rod bottom mold slide vertically relative to the fixed frame by rotating the adjusting rod, and the position of the slide seat is fixed by the positioning assembly after sliding horizontally. Such a structure makes the tie rod bottom mold only able to be adjusted vertically and horizontally, and can accurately maintain a coaxial state with the insulating sleeve bottom mold after adjusting to the specified distance, and is not prone to tilting and shaking that affects the relative position of the two. The structure is simple, and the adjustment method is more flexible and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Attached Figure 2 It is a right view of the utility model.

[0016] Attached Figure 3 It is the attachment of the utility model Figure 2Cross-sectional view along the AA direction.

[0017] Attached Figure 4 It is the attachment of the utility model Figure 3 Cross-sectional view along the BB direction.

[0018] Attached Figure 5 It is the attachment of the utility model Figure 3 Cross-sectional view along CC direction.

[0019] Numbers shown in the accompanying drawings:

[0020] 1. Fixed frame; 2. Insulating sleeve bottom mold; 3. Pull rod bottom mold; 4. Sliding seat; 5. Adjusting rod; 6. Guide rod; 7. Sliding groove; 8. Guide groove; 9. Guide block; 10. Suction plate; 11. Power rod; 12. Compression spring. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

[0022] See attached Figure 1 and 2The utility model is a mold structure for gauge rod injection molding, the main structure includes a fixed frame 1, a plurality of legs are arranged at the bottom of the fixed frame 1 for providing effective support, the fixed frame 1 is provided with a coaxially distributed insulating sleeve bottom mold 2 and a plurality of tie rod bottom molds 3, both of which are arc-shaped structures, the insulating sleeve is placed on the insulating sleeve bottom mold 2, the tie rod is placed on the tie rod bottom mold 3, the insulating sleeve bottom mold 2 is fixedly connected to the fixed frame 1 by welding or bolts, the tie rod bottom mold 3 is symmetrically arranged on both sides of the insulating sleeve bottom mold 2, such a structure before injection molding, the two tie rods are respectively inserted into the insulating sleeve from both sides and the relative position of the tie rod and the insulating sleeve is maintained, and the insulating material is injected from the gap between the two, the fixed frame 1 is symmetrically connected with a plurality of slide seats 4 along the horizontal sliding connection, the position of the slide seat 4 corresponds to the position of the tie rod bottom mold 3, the slide seat 4 is threadedly connected with a vertical adjustment rod 5, and the specific adjustment rod 5 vertically penetrates the slide seat 4 and is slidably connected thereto. The top of the adjusting rod 5 is rotatably connected to the bottom of the tie rod bottom mold 3 through a bearing, and a plurality of guide rods 6 are welded or bolted on the tie rod bottom mold 3, and the guide rods 6 are slidably connected to the slide seat 4 along the vertical direction. Such a structure can drive the tie rod bottom mold 3 and the guide rods 6 to slide up and down relative to the slide seat 4 under the action of the threaded connection by rotating the adjusting rod 5, and then combined with the horizontal sliding slide seat 4, the tie rod bottom mold 3 can be adjusted only in the horizontal and vertical directions, so that the tie rod bottom mold 3 can accurately achieve a coaxial state with the insulating sleeve bottom mold 2 after adjusting the specified distance, and it is not easy to tilt and shake so that the two are misaligned, thereby ensuring the stability of the position of the tie rod relative to the insulating sleeve after injection molding. A positioning component is provided on the fixed frame 1 for use with the slide seat 4. The setting of the positioning component can further fix the position of the slide seat 4 and the tie rod bottom mold 3 after horizontal sliding, avoid the movement of the tie rod bottom mold 3, and further ensure the accuracy of the injection molding operation.

[0023] Preferably, the fixed frame 1 is provided with a laterally extending slide groove 7, which passes through the upper and lower sides of the fixed frame 1. The slide seat 4 can be smoothly slid laterally and connected in the slide groove 7, and the adjustment rod 5 and guide rod 6 thereon can pass through the through position at the top to be connected to the pull rod bottom mold 3. The positioning assembly is arranged in the slide groove 7, so that after the slide seat 4 slides, the positioning assembly can smoothly cooperate with the slide seat 4 to realize the fixing operation of its position.

[0024] Preferably, see Attachment Figure 3The side walls of the slide groove 7 are symmetrically provided with guide grooves 8, which are recessed inwardly from the side walls of the slide groove 7. Guide blocks 9 are symmetrically welded or integrally formed on both sides of the slide seat 4. The guide blocks 9 are slidably connected in the guide grooves 8. The positioning assembly is used in conjunction with the guide blocks 9. Such a structure makes the structure of the slide seat 4 more stable when sliding in the slide groove 7 in the horizontal direction through the cooperation between the guide blocks 9 and the guide grooves 8, further improving the accuracy of the position adjustment of the pull rod bottom mold 3 on the slide seat 4.

[0025] Preferably, see Attachment Figure 4 and 5 The positioning assembly includes a suction plate 10, which is made of magnetic material. The suction plate 10 is connected to the guide groove 8 in a transverse sliding manner. The suction plate 10 is magnetically attracted to the guide block 9. A power rod 11 for driving the suction plate 10 to slide is provided on the fixed frame 1. When the slide 4 slides, the power rod 11 is used to drive the suction plate 10 to slide and separate it from the guide block 9, thereby ensuring the smoothness of the sliding of the slide 4. After sliding into place, the power rod 11 is used to drive the suction plate 10 to slide in the reverse direction so that it contacts and attracts the guide block 9 again, thereby realizing accurate limitation of the positions of the guide block 9 and the slide 4. The structure is simple, and the operation of fixing the position of the slide 4 is smoother and more accurate.

[0026] Preferably, the power rod 11 passes through the fixed frame 1 and is slidably connected thereto. After passing through the fixed frame 1, the power rod 11 is welded or bolted to the suction plate 10. A compression spring 12 is provided between the suction plate 10 and the side wall of the guide groove 8. Such a structure can keep the suction plate 10 in an engaged state with the guide block 9 under the action of the compression spring 12. When the slide 4 moves, the power rod 11 is pulled outward to compress the compression spring 12. After the slide 4 moves into place, the power rod 11 is released, and the suction plate 10 can slide back to its original position under the action of the elastic force of the compression spring 12, which further simplifies the steps of controlling the suction plate 10 and improves the convenience of adjusting the position of the pull rod bottom mold 3.

[0027] Preferably, there are at least two tie rod bottom molds 3 on each side, so that at least two supporting points are provided for the tie rod on one side, thereby ensuring the firmness of the tie rod before and after the position of the tie rod is adjusted.

[0028] Working principle: The structure of the utility model is that an insulating sleeve bottom mold 2 is fixedly set on a fixed frame 1 for placing the insulating sleeve, and multiple tie rod bottom molds 3 are symmetrically set on both sides of the insulating sleeve bottom mold 2 for placing the tie rods. Even when injection molding gauge rods of different lengths and diameters, the height of the tie rod bottom mold 3 can be adjusted vertically to adapt to the relative positions of the insulating sleeve and the tie rod, and the position of the tie rod bottom mold 3 can be adjusted horizontally so that it can support tie rods of different lengths, thereby ensuring that when injection molding gauge rods of different types, even after the mold position is adjusted, the tie rod can always maintain a coaxial state with the insulating sleeve, so that the tie rod positions on both sides of the injection-molded gauge rod are consistent, thereby ensuring the quality of the injection-molded product, achieving effective restriction on the gauge of the rails on both sides, and ensuring driving safety. Safety; a plurality of slide seats 4 are slidably arranged on the fixed frame 1, and a vertical adjusting rod 5 is threadedly connected to the slide seat 4, the top of the adjusting rod 5 is rotatably connected to the bottom of the pull rod bottom mold 3, and a plurality of guide rods 6 are arranged at the bottom of the pull rod bottom mold 3, and the guide rod 6 is slidably connected to the slide seat 4 along the vertical direction, and a positioning assembly used in conjunction with the slide seat 4 is provided on the fixed frame 1. Such a structure can make the pull rod bottom mold 3 slide vertically relative to the fixed frame 1 by rotating the adjusting rod 5, and the position of the slide seat 4 is fixed by the positioning assembly after sliding horizontally. Such a structure makes the pull rod bottom mold 3 only able to adjust its position vertically and horizontally, and can accurately maintain a coaxial state with the insulating sleeve bottom mold 2 after adjusting to the specified distance, and is not prone to tilting and shaking that affects the relative position of the two. The structure is simple, and the adjustment method is more flexible and convenient.

Claims

1. A mold structure for gauge rod injection molding, comprising a fixed frame (1), on which a coaxially distributed insulating sleeve bottom mold (2) and a plurality of tie rod bottom molds (3) are arranged, characterized in that: The insulating sleeve bottom mold (2) is fixedly connected to the fixed frame (1), the pull rod bottom mold (3) is symmetrically arranged on both sides of the insulating sleeve bottom mold (2), and the fixed frame (1) is symmetrically connected with multiple slides (4) along the horizontal sliding direction, and the slide (4) is threadedly connected with a vertical adjustment rod (5), and the top of the adjustment rod (5) is rotatably connected to the bottom of the pull rod bottom mold (3), and the pull rod bottom mold (3) is provided with multiple guide rods (6), and the guide rods (6) are vertically slidably connected to the slide (4), and the fixed frame (1) is provided with a positioning component used in conjunction with the slide (4).

2. According to claim 1, a gauge rod injection molding mold structure, characterized in that: The fixing frame (1) is provided with a sliding groove (7) extending transversely, the sliding seat (4) is slidably connected in the sliding groove (7), and the positioning component is arranged in the sliding groove (7).

3. The mold structure for injection molding of a gauge rod according to claim 2, characterized in that: The side walls of the slide groove (7) are symmetrically provided with guide grooves (8), and the two sides of the slide seat (4) are symmetrically provided with guide blocks (9). The guide blocks (9) are slidably connected in the guide grooves (8), and the positioning assembly is used in conjunction with the guide blocks (9).

4. The mold structure for injection molding of a gauge rod according to claim 3, characterized in that: The positioning assembly comprises a suction plate (10), the suction plate (10) is connected to the guide groove (8) in a lateral sliding manner, the suction plate (10) is magnetically attracted to the guide block (9), and the fixing frame (1) is provided with a power rod (11) for driving the suction plate (10) to slide.

5. The mold structure for injection molding of a gauge rod according to claim 4, characterized in that: The power rod (11) passes through the fixing frame (1) and is slidably connected thereto. After passing through the fixing frame (1), the power rod (11) is connected to the suction plate (10). A compression spring (12) is provided between the suction plate (10) and the side wall of the guide groove (8).

6. The mold structure for injection molding of a gauge rod according to claim 1, characterized in that: There are at least two tie rod bottom molds (3) on each side.

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