Pipe end pier rib mold

Abstract

The utility model relates to a pipe end rib upsetting die in the technical field of pipe end rib upsetting, which comprises a lower die, an upper die, a fixed cavity and an extrusion mechanism, one side of the lower die and one side of the upper die are provided with a stamping opening, and one side of the lower die and one side of the upper die close to the stamping opening are provided with a stamping sliding block capable of moving horizontally. The fixed cavity is formed in the top end face of the lower die and the bottom end face of the upper die, a first pier rib groove and a second pier rib groove which are concave outwards are formed in the position, located at the joint of the stamping sliding blocks, of the fixed cavity, and the extrusion mechanism comprises a horizontally-protruding ejector block which can be embedded in the stamping opening. By means of the structure, when the pipe body is subjected to pier rib machining, the top block does not extend into the pipe body, the situation that the surface of the pipe is strained is avoided, and meanwhile smooth forming of the pipe body pier rib can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe end reinforcement, in particular to a pipe end reinforcement mould. Background Art

[0002] Pier reinforcement is a novel pipe with a smooth inner wall and vertical reinforcement ribs on the outer wall, which reduces the thickness of the pipe wall and improves the ability of the pipe to withstand external pressure loads. There are radial reinforcement ribs on the outer wall of the pipe, thereby improving the ring stiffness of the pipe.

[0003] According to the existing Chinese invention patent with the announcement number CN114535937B, a double rib processing technology is recorded, in which the pipe to be processed is placed on the main clamping mold, the pipe to be processed is inserted into the second processing connection placement groove, and one end of the pipe to be processed is plugged into the inside of the first processing connection dynamic mold, and then the first processing connection dynamic mold is squeezed toward one side of the processing pipe to form ribs at the rib forming groove, and finally the processing pipe is pulled out from the inside of the first processing connection dynamic mold.

[0004] When the tube is extruded, the thin wall of the tube will expand under the action of the extrusion force, causing the surface of the tube to be stretched and damaged when the tube is separated from the first processing connection power mold. Therefore, in view of these current situations, it is urgent to develop a tube end pier reinforcement mold to meet the needs of actual use. Utility Model Content

[0005] The utility model aims to provide a pipe end pier rib mould, which is used to solve the technical problem that the surface of the pipe will be pulled and damaged when the pipe is separated from the first processing connection power mould.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A pipe end rib mould comprises a lower mould, an upper mould, a fixed cavity and an extrusion mechanism, wherein the structures of the lower mould and the upper mould are consistent, the upper mould and the lower mould are horizontally symmetrical structures, and the upper mould can abut against the top of the lower mould, a stamping opening is provided on one side of the lower mould and the upper mould, and a stamping slider which can be moved horizontally is provided on the side of the lower mould and the upper mould close to the stamping opening, the fixed cavity is provided at the top end surface of the lower mould and the bottom end surface of the upper mould, the fixed cavity is a horizontal tubular structure, one end of the fixed cavity is provided on the stamping slider, and the fixed cavity is provided with a first rib groove and a second rib groove which are recessed outward at the junction of the stamping slider, the extrusion mechanism comprises a horizontally raised top block, the top block can be embedded in the inside of the stamping opening, and one end surface of the top block can abut against the stamping slider horizontally, and the first rib groove and the second rib groove can form a closed-loop structure through the extrusion of the top block.

[0008] In the above description, as a further solution, the lower mold and the upper mold are both composed of a cavity template and a jig template, the stamping opening, the fixed cavity and the stamping slide are all arranged in the cavity template, and a sliding groove is provided on the side of the cavity template close to the stamping opening. The stamping slide can be horizontally movably embedded in the sliding groove, and there is a conductive structure between the fixed cavity, the sliding groove and the stamping opening.

[0009] In the above description, as a further solution, a stamping block is provided near the second rib groove of the cavity template, the second rib groove is opened on one side of the stamping block, and the stamping block and the stamping slider are detachable structures from the cavity template.

[0010] In the above description, as a further solution, a return spring is provided between the stamping block and the stamping slider, and the first rib groove and the second rib groove are separated by the return spring.

[0011] In the above description, as a further solution, the cavity template is located in the middle of the fixed cavity and is provided with several ejection blocks. The ejection blocks and the cavity template are split structures, and the ejection blocks can be located in the middle of the fixed cavity and move vertically.

[0012] In the above description, as a further solution, an ejector spring is provided between the demolding top block and the jig template, a plurality of vertically arranged hole grooves are opened inside the jig template, one end of the ejector spring is embedded in the hole groove, and the other end of the ejector spring is connected to the bottom end surface of the demolding top block, and the demolding top block is located in the middle of the fixed cavity through the ejector spring for vertical movement.

[0013] In the above description, as a further solution, the ejection ejector block is provided with vertically protruding limit columns on both sides of the fixed cavity.

[0014] The beneficial effects produced by the utility model are as follows:

[0015] A tube end rib mold of the present application can be used to firmly clamp the tube body inside a fixed cavity by setting an upper and lower mold clamping structure, and at the same time, it is extruded from a stamping opening to one side of a stamping slide block through a top block, so that the first rib groove and the second rib groove can form a closed-loop structure through the extrusion of the top block, and at the same time, the end of the tube body can be synchronously extruded by the top block, and outer ring ribs are formed at the positions of the first rib groove and the second rib groove. When this structure performs rib processing on the tube body, the top block will not extend to the inside of the tube body, thereby avoiding the surface of the tube from being stretched, and at the same time, it can effectively ensure the smooth forming of the tube body ribs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a pipe end pier reinforcement mold described in the utility model;

[0017] Figure 2This is a schematic diagram of the structure of a pipe end reinforcement mold described in the utility model;

[0018] Figure 3 It is a schematic diagram of the structural decomposition of the lower mold in the embodiment;

[0019] Figure 4 for Figure 3 A is a schematic diagram of the partially enlarged structure of the middle part;

[0020] Figure 5 It is a schematic diagram of the structural decomposition of the lower mold in the embodiment;

[0021] Figure 6 It is a schematic diagram of the structural decomposition of the upper mold in the embodiment;

[0022] In the figure: 1-lower die, 11-cavity template, 111-fixed cavity, 112-stamping opening, 113-sliding groove, 12-jig template, 121-hole groove, 13-stamping slide block, 131-first rib groove, 14-stamping block, 141-second rib groove, 15-reset spring, 16-mold ejection block, 161-limiting column, 17-ejection spring, 2-upper die, 3-extrusion mechanism, 31-ejection block. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0024] See also Figure 1-6 A tube end pier reinforcement mold specifically implemented therein comprises a lower mold 1, an upper mold 2, a fixed mold cavity 111 and an extrusion mechanism 3, wherein the structures of the lower mold 1 and the upper mold 2 are consistent, the upper mold 2 and the lower mold 1 are horizontally symmetrical, and the upper mold 2 can abut against the top of the lower mold 1, a stamping opening 112 is provided on one side of the lower mold 1 and the upper mold 2, and a stamping slider 13 which can be horizontally moved is provided on one side of the lower mold 1 and the upper mold 2 close to the stamping opening 112, such as Figure 3 As shown, the lower die 1 and the upper die 2 are both composed of a cavity template 11 and a fixture template 12. The punching opening 112, the fixed cavity 111 and the punching slide 13 are all arranged in the cavity template 11. A sliding groove 113 is provided on the side of the cavity template 11 close to the punching opening 112. The punching slide 13 can be horizontally movably embedded in the sliding groove 113. The fixed cavity 111, the sliding groove 113 and the punching opening 112 are conductive structures.

[0025] The fixed cavity 111 is opened on the top end surface of the lower mold 1 and the bottom end surface of the upper mold 2. Figure 5 and Figure 6As shown, the fixed cavity 111 is a horizontal tubular structure, one end of the fixed cavity 111 is opened on the stamping slider 13, and the fixed cavity 111 is located at the connection of the stamping slider 13 and is provided with a first rib groove 131 and a second rib groove 141 that are concave outwards. Figure 4 As shown, the extrusion mechanism 3 includes a horizontally raised top block 31, which can be embedded in the inside of the stamping opening 112, and one end surface of the top block 31 can horizontally abut the stamping slider 13, and the first rib groove 131 and the second rib groove 141 can form a closed-loop structure through the extrusion of the top block 31.

[0026] The upper and lower mold clamping structures are provided to firmly clamp the tube body inside the fixed cavity 111, and at the same time, the top block 31 is used to extrude the tube body from the stamping opening 112 toward the side of the stamping slide 13, so that the first rib groove 131 and the second rib groove 141 can form a closed-loop structure through the extrusion of the top block 31, and at the same time, the end of the tube body can be synchronously squeezed by the top block 31, and outer ring ribs are formed at the positions of the first rib groove 131 and the second rib groove 141. When this structure performs rib processing on the tube body, the top block 31 will not extend to the inside of the tube body, thereby avoiding the surface of the tube from being stretched, and at the same time, it can effectively ensure the smooth forming of the tube body ribs.

[0027] In further schemes, such as Figure 5 As shown, a punching block 14 is provided at a position of the cavity template 11 near the second rib groove 141, and the second rib groove 141 is opened on one side of the punching block 14. The punching block 14 and the punching slider 13 are detachable from the cavity template 11. The punching block 14 and the punching slider 13 are detachable from the cavity template 11, which can facilitate the user to adjust the cross-sectional thickness of the pipe end rib by replacing the punching block 14 and the punching slider 13, so that a pipe end rib mold can process ribs of various sizes.

[0028] In further schemes, such as Figure 4 As shown, a return spring 15 is provided between the punching block 14 and the punching slider 13, and the first rib groove 131 and the second rib groove 141 are separated by the return spring 15. Since the thickness of the tube body at the rib is increased, the rib is easy to contact and adhere with the first rib groove 131 and the second rib groove 141. After the rib processing of the tube body is completed, the return spring 15 can be used to separate the punching block 14 from the punching slider 13, so that the user can take out the tube body.

[0029] In a further solution, the mold template 11 is located in the middle of the fixed mold cavity 111 and is provided with a plurality of ejection blocks 3116. The ejection blocks 3116 and the mold template 11 are split structures. The ejection blocks 3116 can be located in the middle of the fixed mold cavity 111 and move vertically. Specifically, Figure 3 As shown, an ejection spring 17 is provided between the ejection ejector block 3116 and the jig template 12, and a plurality of vertically arranged hole grooves 121 are opened inside the jig template 12. One end of the ejection spring 17 is embedded in the hole groove 121, and the other end of the ejection spring 17 is connected to the bottom end surface of the ejection ejector block 3116. The ejection ejector block 3116 is located in the middle of the fixed cavity 111 through the ejection spring 17 for vertical movement.

[0030] At the same time, the demolding top block 3116 is provided with vertically protruding limiting columns 161 on both sides of the fixed cavity 111. When the tube body is placed into the fixed cavity 111, the limiting columns 161 on both sides of the fixed cavity 111 can be used to limit the two sides of the tube body to prevent the tube body and the fixed cavity 111 from offsetting.

[0031] A working process of a tube end pier rib mold: separate the upper mold 2 from the lower mold 1, align and place the tube body inside the fixed cavity 111, and vertically close the upper mold 2 and the lower mold 1 through external hydraulic equipment so that the tube body can be fixed inside the fixed cavity 111;

[0032] Then, the extrusion mechanism 3 is moved closer to one side of the upper die 2 and the lower die 1, so that the top block 31 can be extruded from the punching opening 112 to one side of the punching slide 13, so that the first rib groove 131 and the second rib groove 141 can form a closed loop structure through the extrusion of the top block 31, and at the same time, the end of the tube body can be extruded by the top block 31 synchronously, and the outer ring ribs are formed at the positions of the first rib groove 131 and the second rib groove 141, and they are kept for a period of time to prevent plastic rebound at the ribs;

[0033] Finally, the ejector block 31 is pulled outward by the extrusion mechanism 3, and the reset spring 15 separates the stamping block 14 from the stamping slide block 13. The ribs can be separated from the first rib groove 131 and the second rib groove 141, and then the upper mold 2 is separated from the lower mold 1. At the same time, the ejector block 3116 is subjected to the elastic force of the ejection spring 17, and the tube body embedded in the fixed cavity 111 is ejected upward, so that the user can take out the tube body.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A pipe end reinforcement mold, characterized in that: include: A lower die and an upper die, wherein the structures of the lower die and the upper die are consistent, the upper die and the lower die are horizontally symmetrical, and the upper die can abut against the top of the lower die, a stamping opening is provided on one side of the lower die and the upper die, and a stamping slider that can move horizontally is provided on one side of the lower die and the upper die close to the stamping opening; A fixed cavity, the fixed cavity is opened on the top end surface of the lower die and the bottom end surface of the upper die, the fixed cavity is a horizontal tubular structure, one end of the fixed cavity is opened on the stamping slide, and the fixed cavity is located at the junction of the stamping slide and is provided with a first rib groove and a second rib groove that are concave outwards; The extrusion mechanism includes a horizontally raised top block, which can be embedded in the inside of the stamping opening, and one end surface of the top block can horizontally abut against the stamping slider, and the first rib groove and the second rib groove can form a closed loop structure through the extrusion of the top block.

2. A pipe end reinforcement mold according to claim 1, characterized in that: The lower die and the upper die are both composed of a cavity template and a jig template. The stamping opening, the fixed cavity and the stamping slide are all arranged in the cavity template. A sliding groove is provided on the side of the cavity template close to the stamping opening. The stamping slide can be horizontally movably embedded in the sliding groove. The fixed cavity, the sliding groove and the stamping opening are conductive structures.

3. A pipe end reinforcement mold according to claim 2, characterized in that: A punching block is arranged at a position of the cavity template close to the second rib groove, the second rib groove is arranged on one side of the punching block, and the punching block and the punching slide block are detachable structures from the cavity template.

4. A pipe end reinforcement mold according to claim 3, characterized in that: A return spring is arranged between the stamping block and the stamping slide block, and the first rib groove and the second rib groove are separated by the return spring.

5. The pipe end reinforcement mold according to claim 2, characterized in that: The cavity template is located in the middle of the fixed cavity and is provided with a plurality of ejection blocks. The ejection blocks and the cavity template are split structures. The ejection blocks can be located in the middle of the fixed cavity and move vertically.

6. A pipe end reinforcement mold according to claim 5, characterized in that: An ejector spring is provided between the demoulding ejector block and the jig template, a plurality of vertically arranged hole grooves are opened inside the jig template, one end of the ejector spring is embedded in the hole groove, and the other end of the ejector spring is connected to the bottom end surface of the demoulding ejector block. The demoulding ejector block is located in the middle of the fixed cavity through the ejector spring for vertical movement.

7. The pipe end reinforcement mold according to claim 5, characterized in that: The ejection top block is provided with vertically protruding limiting columns on both sides of the fixed cavity.

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