A combined tube mold
The combined manifold jig with adjustable rectangular plates addresses the inefficiencies of fixed-size jigs by allowing flexible branch spacing, resulting in cost-effective and efficient manifold production.
Patent Information
- Application Number
- CN202110297191.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-03-19
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2041-03-19
AI Technical Summary
Existing manifold jigs are of fixed size and lack standardization for branch pipe spacing, leading to increased jig costs and inefficiencies due to the need for multiple jigs to accommodate varying site conditions.
A combined manifold jig composed of upper and lower jigs formed by stacking rectangular plates, allowing adjustable branch pipe spacings through adjustable thickness and number of plates, with features like push heads, injection holes, and chamfers for efficient manifold processing.
Facilitates low-cost, efficient production of manifolds with adjustable branch pipe spacings, reducing production cycle time and jig costs while enabling versatile use for different specifications.
Smart Images
Figure CN112893649B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of manifold processing equipment, in particular to a combined manifold mold. Background Art
[0002] Manifolds are a type of pipe connector, mainly used for flow collection in pipeline systems, especially in natural gas pipeline systems. Manifolds are all processed and formed using jigs. Existing manifold jigs are of fixed size, but there is no standard for the spacing between manifold branches. The spacing between branches needs to be designed according to actual conditions on site, which results in a large number of manifold jigs and increases jig costs. Summary of the invention
[0003] The purpose of the present invention is to provide a combined manifold with simple structure, convenient installation, low cost and convenient for processing manifolds with different branch pipe spacings.
[0004] To achieve the above object, the present invention provides a combined manifold jig, comprising an upper jig and a lower jig, wherein the upper jig and the lower jig are both formed by stacking and connecting a plurality of rectangular plates, the upper jig is provided with a first main pipe semi-cylindrical groove and a first branch pipe cylindrical groove, and the lower jig is provided with a second main pipe semi-cylindrical groove, a second branch pipe cylindrical groove and a third branch pipe cylindrical groove;
[0005] The upper mold is fittedly connected with the lower mold, the first main pipe semi-cylindrical groove is connected with the second main pipe semi-cylindrical groove to form a cylindrical inner cavity, the two ends of the cylindrical inner cavity are respectively provided with a first push head and a second push head, the first push head and the second push head are both provided with injection holes, and the inlets of the injection holes are provided with sealing devices.
[0006] Preferably, the plurality of rectangular plates are tightly connected via a connecting assembly, through holes matching the connecting pieces are provided at the four corners of the rectangular plates, and the plurality of through holes are superimposed to form a mounting hole.
[0007] Preferably, the connecting assembly includes a stud bolt, a gasket and a nut, the stud bolt passes through the mounting hole, both ends of the stud bolt are connected to the nut, and the gasket is provided between the nut and the rectangular plate.
[0008] Preferably, the first branch pipe cylindrical groove is vertically arranged on the upper side of the first main pipe semi-cylindrical groove, the first branch pipe cylindrical groove is intersected and connected with the first main pipe semi-cylindrical groove, and a first chamfer is provided at the intersection.
[0009] Preferably, the second branch pipe cylindrical groove and the third branch pipe cylindrical groove are vertically arranged on the lower side of the second main pipe semi-cylindrical groove, and the second branch pipe cylindrical groove and the third branch pipe cylindrical groove are intersected and connected with the second main pipe semi-cylindrical groove, and a second chamfer is provided at the intersection.
[0010] Preferably, the cross-sectional dimensions of the first pusher head and the second pusher head are equal to the dimensions of the cylindrical inner cavity.
[0011] Preferably, the rectangular plate is made of steel plate, and the thickness of the steel plate is 8-50 mm.
[0012] A method for preparing a combined manifold mold, comprising the steps of determining the thickness of the steel plate according to the total length of the manifold and the spacing between branch pipes in a drawing, and then CNC cutting the steel plate into the rectangular plate. The four corners of the rectangular plate are punched with holes, and the size of the holes is determined according to the outer diameter of the stud bolts. A plurality of the rectangular plates are connected by a connecting assembly, and the rectangular plates are combined into a rectangular mold. Semi-cylindrical grooves for the main pipes and cylindrical grooves for the branch pipes are machined on the rectangular mold, so that the upper mold and the lower mold are respectively machined.
[0013] Therefore, the present invention adopts a combined manifold mold with the above structure, which is simple to manufacture, has a short production cycle, and low cost. It is easy to adjust the length of the main pipe and the distance between the branch pipes, realizing multiple uses of one mold and facilitating the manufacture of manifolds of different specifications.
[0014] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of an embodiment of a combined manifold mold of the present invention;
[0016] Figure 2 It is a schematic diagram of a mold on a combined manifold mold of the present invention;
[0017] Figure 3 It is a side view of a mold on a combined manifold mold of the present invention;
[0018] Figure 4 It is an enlarged view of the A of a combined manifold mold of the present invention;
[0019] Figure 5 It is a schematic diagram of a lower mold of a combined manifold mold of the present invention;
[0020] Figure 6 The present invention is a side view of a lower mold of a combined manifold mold.
[0021] Reference numerals:
[0022] 1. Upper mold; 2. Lower mold; 3. Rectangular plate; 4. Semi-cylindrical groove of the first main pipe; 5. Cylindrical groove of the first branch pipe; 6. Semi-cylindrical groove of the second main pipe; 7. Cylindrical groove of the second branch pipe; 8. Cylindrical groove of the third branch pipe; 9. Cylindrical inner cavity; 10. First push head; 11. Second push head; 12. Liquid injection hole; 13. Sealing device; 14. Mounting hole; 15. Stud bolt; 16. Gasket; 17. Nut; 18. First chamfer; 19. Second chamfer. DETAILED DESCRIPTION
[0023] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.
[0024] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0025] Example
[0026] Figure 1 It is a schematic diagram of an embodiment of a combined manifold jig of the present invention. As shown in the figure, the present invention provides a combined manifold jig, including an upper jig 1 and a lower jig 2. The upper jig 1 and the lower jig 2 are formed by stacking and connecting a plurality of rectangular plates 3. The rectangular plates 3 are made of steel plates with a thickness of 8-50 mm. The thickness of the steel plates can be determined according to the total length of the manifold and the spacing between the branches shown in the drawings. The plurality of rectangular plates 3 are tightly connected by a connecting assembly, which facilitates the installation and disassembly of the rectangular plates 3. By adjusting the number of stacked rectangular plates 3 or adjusting the thickness of the rectangular plates 3, the total length of the manifold and the distance between the branches can be changed, so that it is suitable for processing manifolds of different specifications, which is convenient and cost-saving.
[0027] Figure 2 It is a schematic diagram of a mold on a combined manifold mold of the present invention, Figure 3It is a side view of an upper mold of a combined collecting pipe mold of the present invention. As shown in the figure, the upper mold 1 is provided with a first main pipe semi-cylindrical groove 4 and a first branch pipe cylindrical groove 5, and the lower mold 2 is provided with a second main pipe semi-cylindrical groove 6, a second branch pipe cylindrical groove 7 and a third branch pipe cylindrical groove 8. The rectangular plate 3 is combined into a rectangular mold through a connecting piece, and then the main pipe semi-cylindrical groove and the branch pipe cylindrical groove are processed on the rectangular mold to form the upper mold 1 and the lower mold 2 respectively.
[0028] The upper mold 1 is connected with the lower mold 2 in a close fit, and the semi-cylindrical groove 4 of the first main pipe is connected with the semi-cylindrical groove 6 of the second main pipe to form a cylindrical inner cavity 9, i.e., the mold cavity of the forming main pipe, and the pipe blank is placed in the cylindrical inner cavity 9 for processing and forming. The first push head 10 and the second push head 11 are respectively provided at both ends of the cylindrical inner cavity 9. The cross-sectional dimensions of the first push head 10 and the second push head 11 are equal to the dimensions of the cylindrical inner cavity 9, so as to facilitate pushing the first push head 10 and the second push head 11 to move in the cylindrical inner cavity 9, so that the first push head 10 and the second push head 11 are respectively in contact with the pipe blank. The first push head 10 and the second push head 11 are both provided with a liquid injection hole 12, and pressurized water is introduced at the liquid injection hole 12 so that the pressurized water can fill the inner cavity of the pipe blank and pre-form the pipe blank. A sealing device 13 is provided at the inlet of the injection hole 12 to seal the injection hole 12 tightly and ensure the sealing of the mold cavity. The pipe blank is extruded into shape using a pressure device in a sealed state.
[0029] Figure 4 This is an enlarged view of the combined manifold A of the present invention. Figure 5 It is a schematic diagram of a lower mold of a combined manifold mold of the present invention, Figure 6 It is a side view of a lower mold of a combined manifold mold of the present invention. As shown in the figure, through holes matching the connecting pieces are opened at the four corners of the rectangular plate 3, and several through holes are superimposed to form a mounting hole 14. The connecting assembly includes a stud bolt 15, a gasket 16 and a nut 17. The stud bolt 15 passes through the mounting hole 14, and both ends of the stud bolt 15 are connected to the nut 17. A gasket 16 is provided between the nut 17 and the rectangular plate 3. The stud bolt 15 tightly connects several rectangular plates 3 in sequence, so that the rectangular plates 3 are stably connected and easy to install and disassemble, and convenient for any combination of the rectangular plates 3, thereby realizing the adjustment of the main pipe length and the branch pipe spacing.
[0030] The first branch cylindrical groove 5 is vertically arranged on the upper side of the first main pipe semi-cylindrical groove 4, and the first branch cylindrical groove 5 is connected with the first main pipe semi-cylindrical groove 4, and a first chamfer 18 is provided at the intersection. The radius R1 of the first chamfer 18 is 0.05d1~0.1d1+13 (in mm, d1 is the diameter of the first main pipe semi-cylindrical groove 4). The second branch cylindrical groove 7 and the third branch cylindrical groove 8 are vertically arranged on the lower side of the second main pipe semi-cylindrical groove 6, and the second branch cylindrical groove 7 and the third branch cylindrical groove 8 are connected with the second main pipe semi-cylindrical groove 6, and a second chamfer 19 is provided at the intersection. The radius R2 of the second chamfer 19 is 0.05d2~0.1d2+13 (in mm, d2 is the diameter of the second main pipe semi-cylindrical groove 6). The provision of the first chamfer 18 and the second chamfer 19 improves the fluidity of the pipe material, eliminates internal stress, reduces stress concentration, and improves the strength of the manifold.
[0031] Specific working principle: First, determine the thickness of the steel plate according to the total length of the manifold and the spacing of the branch pipes in the drawing, then cut the steel plate into a rectangular plate 3 by CNC, punch holes at the four corners of the rectangular plate 3, and the size of the holes is determined by the outer diameter of the stud bolts 15. Rectangular plates 3 of different thicknesses are connected by self-made stud bolts 15, washers 16 and nuts 17, and the rectangular plates 3 are combined into a rectangular jig, and then the semi-cylindrical grooves of the main pipes and the cylindrical grooves of the branch pipes are processed on the rectangular jig to make them into an upper jig 1 and a lower jig 2 respectively, which is simple to make, has a short production cycle and low cost.
[0032] The upper mold 1, the lower mold 2 and the pusher are fixed to the upper cylinder, the base and the side cylinder of the press respectively. The pipe blank is hoisted to the middle position of the semi-cylindrical groove 6 of the second main pipe, and then the upper mold 1 and the lower mold 2 are pressed to fit, and at the same time, the first pusher 10 and the second pusher 11 are pushed to contact the pipe blank respectively, and the external pressure water injection device is turned on so that the pressure water fills the inner cavity of the pipe blank to preform the pipe blank. Then the sealing condition of the first pusher 10 and the second pusher 11 is verified, and the position, size and connection condition of the press equipment and each component are corrected and verified, and then the press equipment is turned on to work. After the extrusion is completed, the pressure is released in turn, the upper mold 1 is raised, and the first pusher 10 and the second pusher 11 are withdrawn, and finally the extruded manifold is hoisted. If the spacing between the branch pipes needs to be changed, it is only necessary to adjust the superimposed rectangular plates, which is simple and convenient, low cost and high efficiency.
[0033] Therefore, the present invention adopts a combined collecting pipe mold of the above structure, which is formed by combining rectangular plates. The length of the main pipe and the distance between the branch pipes are adjusted by changing the thickness of the rectangular plates and the number of overlapping rectangular plates. This makes the collecting pipe mold simple to manufacture, short in production cycle, and low in cost. It can also be used for multiple purposes, providing convenience for manufacturing the collecting pipe.
Claims
1. A combined manifold, characterized in that: It comprises an upper mold and a lower mold, wherein the upper mold and the lower mold are both formed by stacking and connecting a plurality of rectangular plates, the upper mold is provided with a first main pipe semi-cylindrical groove and a first branch pipe cylindrical groove, and the lower mold is provided with a second main pipe semi-cylindrical groove, a second branch pipe cylindrical groove and a third branch pipe cylindrical groove; The upper mold is fitted and connected with the lower mold, the semi-cylindrical groove of the first main pipe is connected with the semi-cylindrical groove of the second main pipe to form a cylindrical inner cavity, the two ends of the cylindrical inner cavity are respectively provided with a first pusher head and a second pusher head, the first pusher head and the second pusher head are both provided with injection holes, and the inlets of the injection holes are both provided with sealing devices; The plurality of rectangular plates are tightly connected by a connecting assembly, and through holes matching the connecting assembly are provided at the four corners of the rectangular plate, and the plurality of through holes are superimposed to form a mounting hole; the connecting assembly comprises a stud bolt, a gasket and a nut, the stud bolt passes through the mounting hole, both ends of the stud bolt are connected to the nut, and the gasket is provided between the nut and the rectangular plate; The preparation method of the combined manifold jig is as follows: according to the total length of the manifold and the spacing between the branch pipes in the drawing, the thickness of the steel plate is determined, and then the rectangular plate is cut into the rectangular plate by numerical control, and holes are punched at the four corners of the rectangular plate, and the size of the holes is determined according to the outer diameter of the stud bolts. A plurality of the rectangular plates are connected by the connecting assembly, and the rectangular plates are combined into a rectangular jig, and the semi-cylindrical groove of the main pipe and the cylindrical groove of the branch pipe are processed on the rectangular jig, so that they are processed into the upper jig and the lower jig respectively; If you need to change the spacing between branch pipes, just adjust the stacked rectangular plates.
2. A combined manifold mold according to claim 1, characterized in that: The first branch pipe cylindrical groove is vertically arranged on the upper side of the first main pipe semi-cylindrical groove, the first branch pipe cylindrical groove is intersected and connected with the first main pipe semi-cylindrical groove, and a first chamfer is arranged at the intersection.
3. The combined manifold mold according to claim 1, characterized in that: The second branch pipe cylindrical groove and the third branch pipe cylindrical groove are vertically arranged on the lower side of the second main pipe semi-cylindrical groove. The second branch pipe cylindrical groove and the third branch pipe cylindrical groove are intersected and connected with the second main pipe semi-cylindrical groove, and a second chamfer is provided at the intersection.
4. The combined manifold mold according to claim 1, characterized in that: The cross-sectional dimensions of the first pusher head and the second pusher head are both equal to the dimensions of the cylindrical inner cavity.
5. The combined manifold mold according to claim 1, characterized in that: The rectangular plate is made of steel plate, and the thickness of the steel plate is 8-50 mm.