Multi-point supporting and positioning type flange plate injection molding structure

Abstract

The multi-point supporting and positioning type flange plate injection molding structure comprises an injection molding base plate, an injection molding gland, an upper butt joint column, a lower butt joint column, a driving column, a driving assembly, an abutting rod and an annular steel lining. The lifting cover is driven to move up and down through rotation of the driving column, when the lifting cover moves upwards, the multiple horizontal moving columns are driven to move towards the outer side, in this way, the abutting rods are driven to move towards the outer side through the moving guide rod, and the multiple abutting rods jointly support the annular steel lining; a plurality of horizontal moving columns move towards the inner side through extrusion of extrusion springs, the horizontal moving columns drive moving guide rods to drive abutting rods to move towards the inner side, so that the abutting rods move to enter lower butt joint columns, demolding and discharging are facilitated, the annular steel lining can be supported in a multi-point suspended mode, demolding can be facilitated, and the demolding efficiency is improved. And meanwhile, only one small assembling hole is formed in the flange plate during butt-joint injection molding through the lower butt-joint column and the upper butt-joint column, and the structural stability is high.

Description

Technical Field

[0001] The invention belongs to the technical field of flange processing, and in particular relates to a multi-point support and positioning flange injection molding structure. Background Art

[0002] Flanges are also called flange flanges or flanges. Flanges are parts that connect pipes, shafts, or other components to each other to achieve connection between the ends of the components. Existing flanges are injection molded with polymer materials. In order to improve the strength and stability of the entire structure, it is generally necessary to place an annular steel ring inside the flange. In this way, the strength of the structure is improved by the annular steel ring, and the durability of the flange is greatly enhanced. However, when injecting existing flanges, a steel ring needs to be built in, and the steel ring generally needs to be located in the middle of the flange. In this way, the polymer material of the flange wraps the entire flange, which makes the flange inconvenient to inject. Some methods are to build in a steel ring by splitting the bonded structure. The process is cumbersome and the structural stability is poor. Therefore, the focus of the present invention is to solve the problem of inserting the annular steel liner into the injection molding, while improving the structural stability and operational convenience. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the present invention solves the problem of providing a multi-point support positioning flange injection molding structure that is convenient for inserting an annular steel liner, has a stable structure, and is easy to operate.

[0004] In order to solve the above problems, the technical solutions adopted by the present invention are as follows: A multi-point support and positioning flange injection molding structure, including an injection molding chassis, an injection molding cover, an upper docking column, a lower docking column, a driving column, a driving assembly, an abutment rod, and an annular steel liner; a lower annular groove is provided around the upper end of the injection molding chassis; an upper annular groove is provided around the lower end of the injection molding cover; a plurality of lower docking columns are evenly installed around the lower annular groove of the injection molding chassis; a plurality of upper docking columns are evenly installed around the upper annular groove of the injection molding cover; the injection molding cover is covered and installed on the upper end of the injection molding chassis; the upper annular groove and the lower annular groove are docked up and down to form an injection molding cavity; the upper docking column and the lower docking column are docked up and down; a driving cavity is provided inside the lower side of the injection molding chassis; the driving column is rotatably installed in the driving cavity In the middle; an abutment rod is slidably and clamped on the outer side of the lower docking column; the driving assembly is installed in the driving cavity; a plurality of through holes are evenly arranged around the annular steel liner, and the annular steel liner is installed in the annular groove on the lower side of the injection-molded chassis, and the through holes of the annular steel liner are sleeved on the lower docking column, and an annular gap is left between the through holes and the lower docking column; the driving column drives the multiple abutment rods to move synchronously through the driving assembly, and makes the abutment rods slide into the lower docking column or slide out of the outer side of the lower docking column; when the multiple abutment rods slide out of the outer side of the lower docking column, the lower ends of the multiple through holes of the annular steel liner are supported by the abutment rods, and when the multiple abutment rods slide into the lower docking column, the abutment rods are separated from the annular steel liner.

[0005] Furthermore, a stepped opening is provided on the upper side of the outer end of the abutting rod, and the stepped openings of the plurality of abutting rods form a circular track; and the annular steel liner is supported on the stepped openings of the plurality of abutting rods.

[0006] Furthermore, the driving assembly includes a movable guide rod; a sliding groove is provided on the middle outer side of the lower docking column; the abutment rod is slidably installed on the sliding groove; a movable guide rod is installed on the lower side of the inner end of the abutment rod; the lower end of the movable guide rod extends downward through the lower docking column and the injection molded chassis into the driving cavity; the rotation of the driving column drives multiple movable guide rods to move radially, and the movable guide rod drives the abutment rod to move radially.

[0007] Furthermore, the driving assembly also includes a horizontal moving column, a positioning cylinder, an extrusion spring, and a lifting cover; the lower ends of the moving guide rods are respectively installed with horizontal moving columns; multiple positioning cylinders are installed around the driving cavity, and extrusion springs are respectively installed inside the positioning cylinders; the outer ends of the horizontal moving columns are inserted into the positioning cylinders and elastically pressed against the extrusion springs; a lifting cover is installed in the middle of the driving cavity for sliding up and down; the outer sides of the lifting cover are in contact with the inner ends of multiple horizontal moving columns; the driving column rotates to drive the lifting cover to move up and down; when the lifting cover moves upward, it drives multiple horizontal moving columns to move outward; when the lifting cover moves downward, multiple horizontal moving columns are respectively moved inward by the extrusion of the extrusion springs.

[0008] Furthermore, the driving assembly also includes a lifting sleeve and a guide rod; guide grooves are respectively provided on both sides of the upper end of the driving cavity; both sides of the upper end of the lifting cover are slidably inserted into the guide grooves through the guide rods; the lifting sleeve is installed inside the lifting cover, and both sides of the lifting sleeve are connected to the side walls of the lifting cover through fixing rods; the lifting sleeve is threadedly connected to the driving column.

[0009] Furthermore, a plurality of positioning slots are provided at the bottom of the driving cavity; and the lower side of the horizontal moving column is slidably engaged with the positioning slots via a positioning engaging column.

[0010] Furthermore, the lifting cover is a conical ring structure that is smaller at the top and larger at the bottom.

[0011] Furthermore, support frames are respectively provided on both sides below the injection-molded chassis.

[0012] The beneficial effects of the present invention are as follows: 1. The present invention designs a new annular steel liner insertion structure during injection molding. A plurality of through-holes are evenly provided around the annular steel liner. The annular steel liner is installed in the annular groove on the lower side of the injection molding chassis, and the through-holes of the annular steel liner are sleeved on the lower docking column. An annular gap is left between the through-holes and the lower docking column, so that it is convenient for the polymer material to wrap the inner side of the through-holes of the annular steel liner. The structure of the present invention for suspending the annular steel liner is supported by a plurality of abutting rods on the outer side of the lower docking column. The driving column drives the plurality of abutting rods to move synchronously through the driving assembly, and makes the abutting rods slide into the lower docking column or slide out of the outer side of the lower docking column. In this way, when the plurality of abutting rods slide out of the outer side of the lower docking column, the lower end outer sides of the plurality of through-holes of the annular steel liner are all supported by the abutting rods. In this way, the structure of suspended injection molding of the annular steel liner is realized by multi-point support. After the injection molding is completed, the plurality of abutting rods are slid into the interior of the lower docking column, so that the abutting rods are separated from the annular steel liner, which is convenient for demoulding and discharge, and the structure is flexible and convenient to use.

[0013] 2. After the injection molding of the present invention is completed, an assembly hole for later connection appears on the flange when the lower docking column and the upper docking column are docked and injected. A small hole is left on the outside of the assembly hole. The small hole is left when the abutment rod is connected. In this way, the structure of the present invention is relatively stable, and only a small hole is left on the outside of the assembly hole, and the structure has a longer service life.

[0014] When the lifting cover is lifted up, the lifting sleeve is lifted up and down, thereby driving the lifting cover to move up and down. When the lifting cover moves upward, it drives multiple horizontal moving columns to move outward, so that the abutting rods are driven to move outward by the moving guide rods, so that the abutting rods move out of the lower docking column, so that the multiple abutting rods jointly support the annular steel liner. When the lifting cover moves downward, the multiple horizontal moving columns are respectively moved inward by the extrusion springs, and the horizontal moving column drives the moving guide rods to drive the abutting rods to move inward, so that the abutting rods move into the lower docking column, which is convenient for demoulding and discharging. The structural design of the present invention is ingenious, which can not only make the annular steel liner suspended at multiple points, but also facilitate demoulding. At the same time, the assembly hole on the flange plate that appears when the lower docking column and the upper docking column are docked and injected is only a small hole, and the structural stability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the present invention in which the abutting rod enters the interior of the lower docking column to facilitate demoulding.

[0016] Figure 2 This is a schematic structural diagram of the abutment rod extending from the outer side of the lower docking column of the present invention.

[0017] Figure 3 It is a schematic structural diagram of the driving column, lifting sleeve and lifting cover of the present invention.

[0018] Figure 4 It is a structural schematic diagram of the horizontal moving column, positioning cylinder and extrusion spring of the present invention.

[0019] Figure 5 For the present invention Figure 2 A magnified structural diagram of one side.

[0020] Figure 6 It is a schematic top view of the structure of the injection-molded chassis, lower annular groove, lower docking column, and abutment rod of the present invention.

[0021] Figure 7 For the present invention Figure 6 Schematic diagram of the structure in which the middle abutment rod enters the interior of the lower docking column.

[0022] Figure 8 This is a schematic diagram of the top structure of the annular steel liner of the present invention. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to the accompanying drawings.

[0024] like Figures 1 to 8As shown, a multi-point support and positioning flange injection molding structure includes an injection molding chassis 1, an injection molding cover 2, an upper docking column 3, a lower docking column 4, a driving column 5, a driving assembly 6, abutting rod 7, and an annular steel liner 8; a lower annular groove 11 is provided around the upper end of the injection molding chassis 1; an upper annular groove 21 is provided around the lower end of the injection molding cover 2; a plurality of lower docking columns 4 are evenly installed around the lower annular groove 11 of the injection molding chassis 1; a plurality of upper docking columns 3 are evenly installed around the upper annular groove 21 of the injection molding cover 2; the injection molding cover 2 is covered and installed on the upper end of the injection molding chassis 1; the upper annular groove 21 and the lower annular groove 11 are docked up and down to form an injection molding cavity; the upper docking column 3 and the lower docking column 4 are docked up and down; a driving cavity 12 is provided inside the lower side of the injection molding chassis 1; the driving column 5 is rotatably installed in the driving cavity 12 The middle of the lower docking column 4; the outer side of the lower docking column 4 is respectively slidably connected and installed with an abutment rod 7; the driving assembly 6 is installed in the driving cavity 12; the annular steel liner 8 is evenly provided with a plurality of through holes 81 around it, and the annular steel liner 8 is installed in the annular groove 11 on the lower side of the injection molded chassis 1, and the through holes 81 of the annular steel liner 8 are sleeved on the lower docking column 4, and an annular gap 82 is left between the through holes 81 and the lower docking column 4; the driving column 5 drives the multiple abutment rods 7 to move synchronously through the driving assembly 6, and makes the abutment rods 7 slide into the lower docking column 4 or slide out of the outer side of the lower docking column 4; when the multiple abutment rods 7 slide out of the outer side of the lower docking column 4, the lower end outer sides of the multiple through holes 81 of the annular steel liner 8 are supported by the abutment rod 7, and when the multiple abutment rods 7 slide into the lower docking column 4, the abutment rod 7 is separated from the annular steel liner 8.

[0025] like Figures 1 to 8 As shown, in order to leave a gap between the inner wall of the through hole 81 of the annular steel liner 8 and the outer side of the lower docking column 4 for the convenience of injection molding and to ensure structural stability, further, a step-shaped opening 71 is opened on the upper side of the outer end of the abutting rod 7, and the step-shaped openings 71 of multiple abutting rods 7 form a circular trajectory; the annular steel liner 8 is supported on the step-shaped openings 71 of multiple abutting rods 7.

[0026] like Figures 1 to 8 As shown, in order to facilitate the telescopic movement of the abutment rod 7, the driving assembly 6 further includes a movable guide rod 61; a sliding groove 41 is provided on the middle outer side of the lower docking column 4; the abutment rod 7 is slidably installed on the sliding groove 41; a movable guide rod 61 is installed on the lower side of the inner end of the abutment rod 7; the lower end of the movable guide rod 61 extends downward through the lower docking column 4 and the injection molded chassis 1 into the driving cavity 12; the rotation of the driving column 5 drives multiple movable guide rods 61 to move radially, and the movable guide rod 61 drives the abutment rod 7 to move radially.

[0027] like Figures 1 to 8As shown, in order to facilitate driving, further, the driving assembly 6 further comprises horizontal moving columns 62, positioning cylinders 63, extrusion springs 64, and lifting covers 65; the lower ends of the moving guide rods 61 are respectively installed with the horizontal moving columns 62; a plurality of positioning cylinders 63 are installed around the driving cavity 12, and the interiors of the positioning cylinders 63 are respectively installed with the extrusion springs 64; the outer ends of the horizontal moving columns 62 are inserted into the positioning cylinders 63 and elastically abut against the extrusion springs 64; one lifting cover 65 is slidingly installed in the middle of the interior of the driving cavity 12; the outer side of the four peripheries of the lifting cover 65 abuts against the inner ends of the plurality of horizontal moving columns 62; the driving column 5 rotates to drive the lifting cover 65 to move up and down; when the lifting cover 65 moves upward, the plurality of horizontal moving columns 62 are driven to move outward; when the lifting cover 65 moves downward, the plurality of horizontal moving columns 62 are respectively moved inward through the extrusion of the extrusion springs 64.

[0028] As shown, in order to facilitate driving, further, the driving assembly 6 further comprises horizontal moving columns 62, positioning cylinders 63, extrusion springs 64, and lifting covers 65; the lower ends of the moving guide rods 61 are respectively installed with the horizontal moving columns 62; a plurality of positioning cylinders 63 are installed around the driving cavity 12, and the interiors of the positioning cylinders 63 are respectively installed with the extrusion springs 64; the outer ends of the horizontal moving columns 62 are inserted into the positioning cylinders 63 and elastically abut against the extrusion springs 64; one lifting cover 65 is slidingly installed in the middle of the interior of the driving cavity 12; the outer side of the four peripheries of the lifting cover 65 abuts against the inner ends of the plurality of horizontal moving columns 62; the driving column 5 rotates to drive the lifting cover 65 to move up and down; when the lifting cover 65 moves upward, the plurality of horizontal moving columns 62 are driven to move outward; when the lifting cover 65 moves downward, the plurality of horizontal moving columns 62 are respectively moved inward through the extrusion of the extrusion springs 64. Figures 1 to 8 As shown, in order to facilitate driving, further, the driving assembly 6 further comprises horizontal moving columns 62, positioning cylinders 63, extrusion springs 64, and lifting covers 65; the lower ends of the moving guide rods 61 are respectively installed with the horizontal moving columns 62; a plurality of positioning cylinders 63 are installed around the driving cavity 12, and the interiors of the positioning cylinders 63 are respectively installed with the extrusion springs 64; the outer ends of the horizontal moving columns 62 are inserted into the positioning cylinders 63 and elastically abut against the extrusion springs 64; one lifting cover 65 is slidingly installed in the middle of the interior of the driving cavity 12; the outer side of the four peripheries of the lifting cover 65 abuts against the inner ends of the plurality of horizontal moving columns 62; the driving column 5 rotates to drive the lifting cover 65 to move up and down; when the lifting cover 65 moves upward, the plurality of horizontal moving columns 62 are driven to move outward; when the lifting cover 65 moves downward, the plurality of horizontal moving columns 62 are respectively moved inward through the extrusion of the extrusion springs 64.

[0029] The present invention designs a new annular steel liner 8 insertion structure during injection molding. A plurality of through holes 81 are evenly opened around the annular steel liner 8. The annular steel liner 8 is installed in the annular groove 11 on the lower side of the injection molding chassis 1, and the through holes 81 of the annular steel liner 8 are sleeved on the lower docking column 4. An annular gap is left between the through holes 81 and the lower docking column 4, so that it is convenient for the polymer material to wrap the inner side of the through holes 81 of the annular steel liner 8. The structure of the present invention for suspending the annular steel liner 8 is supported by a plurality of abutment rods 7 on the outer sides of the lower docking column 4, and the driving column 5 is driven by the driving component 6. Drive multiple abutment rods 7 to move synchronously, and make the abutment rods 7 slide into the lower docking column 4 or slide out of the outside of the lower docking column 4. In this way, when the multiple abutment rods 7 slide out of the outside of the lower docking column 4, the lower end outer sides of the multiple through holes 81 of the annular steel liner 8 are all supported by the abutment rods 7. In this way, the structure of the suspended injection molding of the annular steel liner 8 is realized by multi-point support. After the injection molding is completed, the multiple abutment rods 7 are slid into the interior of the lower docking column 4 to separate the abutment rods 7 from the annular steel liner 8, which facilitates demolding and discharge, and the structure is flexible and convenient to use.

[0030] After the injection molding of the present invention is completed, an assembly hole for later connection appears on the flange when the lower docking column 4 and the upper docking column 3 are docked and injected. A small hole is left on the outside of the assembly hole. The small hole is left when the abutment rod 7 is connected. In this way, the structure of the present invention is relatively stable, and only a small hole is left on the outside of the assembly hole, and the structure has a longer service life.

[0031] The present invention drives the lifting sleeve 66 to move up and down by rotating the driving column 5, thereby driving the lifting cover 65 to move up and down. When the lifting cover 65 moves upward, it drives multiple horizontal moving columns 62 to move outward, so that the abutment rod 7 is driven outward by the moving guide rod 61, so that the abutment rod 7 moves out of the lower docking column 4, so that multiple abutment rods 7 jointly support the annular steel liner 8. When the lifting cover 65 moves downward, multiple horizontal moving columns 62 are respectively moved inward by the extrusion spring 64, and the horizontal moving column 62 drives the moving guide rod 61 to drive the abutment rod 7 to move inward, so that the abutment rod 7 moves into the lower docking column 4, which is convenient for demoulding and discharging. The structural design of the present invention is ingenious, which can not only make the annular steel liner 8 suspended at multiple points, but also facilitate demoulding. At the same time, the assembly hole on the flange plate that appears when the lower docking column 4 and the upper docking column 3 are docked and injected is only a small hole, and the structural stability is high.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-point support positioning flange injection structure, characterized in that: The invention comprises an injection molding chassis, an injection molding cover, an upper docking column, a lower docking column, a driving column, a driving assembly, an abutting rod and an annular steel liner; a lower annular groove is provided around the upper end of the injection molding chassis; an upper annular groove is provided around the lower end of the injection molding cover; a plurality of lower docking columns are evenly installed around the lower annular groove of the injection molding chassis; a plurality of upper docking columns are evenly installed around the upper annular groove of the injection molding cover; the injection molding cover is covered and installed on the upper end of the injection molding chassis; the upper annular groove and the lower annular groove are docked up and down to form an injection molding cavity; the upper docking column and the lower docking column are docked up and down; a driving cavity is provided inside the lower side of the injection molding chassis; the driving column is rotatably installed in the middle of the driving cavity; the lower docking The outer sides of the columns are respectively slidably and clamped with an abutment rod; the driving assembly is installed in the driving cavity; a plurality of through-holes are evenly arranged around the annular steel liner, the annular steel liner is installed in the annular groove on the lower side of the injection-molded chassis, and the through-holes of the annular steel liner are sleeved on the lower docking column, and an annular gap is left between the through-holes and the lower docking column; the driving column drives the plurality of abutment rods to move synchronously through the driving assembly, and makes the abutment rods slide into the lower docking column or slide out of the outer side of the lower docking column; when the plurality of abutment rods slide out of the outer side of the lower docking column, the outer sides of the lower ends of the plurality of through-holes of the annular steel liner are all supported by the abutment rods, and when the plurality of abutment rods slide into the lower docking column, the abutment rods are separated from the annular steel liner.

2. The multi-point support positioning flange injection molding structure according to claim 1, characterized in that: A stepped opening is provided on the upper side of the outer end of the abutting rod, and the stepped openings of the plurality of abutting rods form a circular track; the annular steel liner is supported on the stepped openings of the plurality of abutting rods.

3. The multi-point support positioning flange injection structure according to claim 1, characterized in that: The driving assembly includes a movable guide rod; a sliding groove is provided on the middle outer side of the lower docking column; the abutment rod is slidably installed on the sliding groove; a movable guide rod is installed on the lower side of the inner end of the abutment rod; the lower end of the movable guide rod extends downward through the lower docking column and the injection molded chassis into the driving cavity; the rotation of the driving column drives multiple movable guide rods to move radially, and the movable guide rod drives the abutment rod to move radially.

4. The multi-point support positioning flange injection molding structure according to claim 3, characterized in that: The driving assembly also includes a horizontal moving column, a positioning cylinder, an extrusion spring, and a lifting cover; the lower ends of the moving guide rods are respectively installed with horizontal moving columns; multiple positioning cylinders are installed around the driving cavity, and extrusion springs are respectively installed inside the positioning cylinders; the outer ends of the horizontal moving columns are inserted into the positioning cylinders and elastically pressed against the extrusion springs; a lifting cover is installed in the middle of the driving cavity for sliding up and down; the outer sides of the lifting cover are in contact with the inner ends of multiple horizontal moving columns; the driving column rotates to drive the lifting cover to move up and down; when the lifting cover moves upward, it drives multiple horizontal moving columns to move outward; when the lifting cover moves downward, multiple horizontal moving columns are respectively moved inward by the extrusion of the extrusion springs.

5. The multi-point support positioning flange injection structure according to claim 4, characterized in that: The driving assembly also includes a lifting sleeve and a guide rod; guide grooves are respectively provided on both sides of the upper end of the driving cavity; both sides of the upper end of the lifting cover are slidably inserted into the guide grooves through the guide rods; the lifting sleeve is installed inside the lifting cover, and both sides of the lifting sleeve are connected to the side walls of the lifting cover through fixing rods; the lifting sleeve is screwed to the driving column.

6. The multi-point support positioning flange injection structure according to claim 4, characterized in that: A plurality of positioning slots are provided at the bottom of the driving cavity; the lower side of the horizontal moving column is slidably engaged with the positioning slots via a positioning engaging column.

7. The multi-point support positioning flange injection structure according to claim 4, characterized in that: The lifting cover is in a conical ring structure that is smaller at the top and larger at the bottom.

8. The multi-point support positioning flange injection structure according to claim 1, characterized in that: Support frames are respectively provided on both sides of the lower side of the injection molding chassis.

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