Die structure for improving forming quality of drill rod joint

Abstract

The utility model relates to a mould structure for improving the forming quality of a drill rod joint, which aims to solve the technical problem that the demoulding of the joint is influenced due to the non-uniform distribution of a release agent in the prior art, and comprises an upper mould body, a lower mould body, a connecting plate A, a support plate, a connecting plate B, a hydraulic cylinder body, a cross beam strip and a spray head, the inner end of the connecting plate A is fixedly connected with the outer side of the lower die body; a plurality of supporting plates are fixedly arranged on the top side of the outer end of the connecting plate A; the connecting plate B is fixedly arranged at the top ends of the supporting plates; the hydraulic cylinder body is fixedly arranged on the top side of the connecting plate B; the cross beam strip is fixedly arranged at the outer end of a piston rod of the hydraulic cylinder body; the multiple nozzles are arranged on one side of the cross beam strip at equal intervals through clamping structures. The mold release agent spraying device has the advantages that a mold release agent is uniformly sprayed in the casting cavity of the lower mold body, and the mold release agent is atomized to be in contact with the inner wall of the casting cavity, so that the mold release agent is uniformly distributed.

Description

Technical Field

[0001] The utility model relates to the technical field of drill rod joint production, in particular to a mold structure for improving the molding quality of drill rod joints. Background Art

[0002] Drill pipe is a steel pipe with threads at the tail end, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the well. The tail of the drill pipe is connected to the drill bit through a joint, which can be processed and produced by a mold.

[0003] The mold used for joint production needs to be coated with a layer of release agent before die-casting. The release agent is an interface coating used on the surfaces of two objects that are easy to stick to each other. It can make the surfaces of the objects easy to detach, smooth and clean, and facilitate the ejection of the product.

[0004] The existing mold release agent used in the joint production is poured into the mold, and the mold release agent is unevenly distributed, which affects the joint demoulding and further affects the joint molding quality.

[0005] In view of this, we propose a mold structure for improving the forming quality of drill pipe joints. Utility Model Content

[0006] The utility model aims to overcome the deficiencies of the prior art, meet practical needs, and provide a mold structure for improving the molding quality of drill pipe joints, so as to solve the current technical problem of uneven distribution of release agents and influence on joint demoulding.

[0007] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a mold structure for improving the molding quality of a drill pipe joint, including an upper mold body and a lower mold body, and also including a connecting plate A, a supporting plate, a connecting plate B, a hydraulic cylinder body, a crossbeam and a nozzle;

[0008] The inner end of the connecting plate A is fixedly connected to the outer side of the lower mold body;

[0009] A plurality of support plates are fixedly arranged on the top side of the outer end of the connecting plate A;

[0010] The connecting plate B is fixedly mounted on the top of the plurality of supporting plates;

[0011] The hydraulic cylinder body is fixedly arranged on the top side of the connecting plate B;

[0012] The cross beam is fixedly arranged on the outer end of the piston rod of the hydraulic cylinder body;

[0013] A plurality of nozzles are equidistantly arranged on one side of the cross beam through a clamping structure;

[0014] Among them, a plurality of the nozzles correspond to the casting cavity of the lower mold body.

[0015] Preferably, the clamping structure comprises a fixed block, an arc block A and an arc block B;

[0016] The fixing block is fixedly arranged on one side of the cross beam;

[0017] The outer wall of the arc block A is fixedly connected to the arc side of the fixed block;

[0018] The inner ends of the two arc blocks B are connected to the two ends of the arc block A through elastic components respectively;

[0019] Wherein, a gap is provided between the outer ends of the two arc-shaped blocks B;

[0020] Wherein, the cylinder of the nozzle is snap-fitted with a snap ring formed by the arc block A and the two arc blocks B.

[0021] Preferably, the elastic component comprises a connecting block A, a connecting block B, a guide rod, a limit block and a spring;

[0022] The connecting block A is fixedly arranged on the outer wall of the end of the arc-shaped block A;

[0023] The connecting block B is fixedly arranged on the outer wall of the inner end of the arc-shaped block B;

[0024] The guide rod is passed through the connecting block B;

[0025] Wherein, one end of the guide rod is fixedly connected to the connecting block A;

[0026] The limit block is fixedly arranged at the other end of the guide rod;

[0027] The spring is sleeved on the guide rod between the limiting block and the connecting block B.

[0028] Preferably, a collar is sleeved on the cylinder of the nozzle, an arc groove is opened inside the two arc blocks B, an arc groove is opened inside the arc block A, and the two arc grooves are connected and matched with the arc groove and are snap-fitted with the collar.

[0029] Compared with the prior art, the beneficial effects of the utility model are:

[0030] 1. The utility model has the advantages of uniformly spraying the release agent in the casting cavity of the lower mold body by arranging the connecting plate A, the supporting plate, the connecting plate B, the hydraulic cylinder body, the cross beam and the nozzle. The release agent is atomized and contacts the inner wall of the casting cavity, and is evenly distributed. This solves the problem of uneven distribution of the release agent, which affects the demoulding of the joint and further affects the molding quality of the joint.

[0031] 2. The utility model has the advantages of fast clamping the nozzle and having a longer service life than a deformable plastic ring by arranging a fixing block, an arc block A, an arc block B, a connecting block A, a connecting block B, a guide rod, a limit block and a spring, so that the two arc blocks B can be moved laterally outward without bending the arc blocks B, thereby achieving the advantage of fast clamping the nozzle and having a longer service life than a deformable plastic ring.

[0032] 3. The utility model provides an arc groove, an arc groove and a collar, and has the advantage of clamping the collar, the arc groove and the arc groove, so that the nozzle can be further kept stable when positioning the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 This is a schematic diagram of the lower mold body connection structure of the utility model;

[0035] Figure 3 This is a schematic diagram of the connection of the clamping structure of the utility model;

[0036] Figure 4 It is a schematic diagram of the decomposed structure of the elastic component of the utility model;

[0037] In the figure: 1. Upper mold body; 2. Lower mold body; 3. Connecting plate A; 4. Support plate; 5. Connecting plate B; 6. Hydraulic cylinder body; 7. Crossbeam; 8. Clamping structure; 9. Nozzle;

[0038] 801, fixed block; 802, arc block A; 803, elastic component; 804, arc block B;

[0039] 8031, connecting block A; 8032, connecting block B; 8033, guide rod; 8034, limit block; 8035, spring;

[0040] 8041, arc groove;

[0041] 901. Ring. DETAILED DESCRIPTION

[0042] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0043] Example 1: A mold structure for improving the molding quality of a drill pipe joint, see Figures 1 to 4 , including an upper mold body 1 and a lower mold body 2, and also including a connecting plate A3, a supporting plate 4, a connecting plate B5, a hydraulic cylinder body 6, a crossbeam 7 and a nozzle 9;

[0044] The inner end of the connecting plate A3 is fixedly connected to the outer side of the lower mold body 2; a number of support plates 4 are fixedly arranged on the top side of the outer end of the connecting plate A3; the connecting plate B5 is fixedly arranged on the top of a number of support plates 4; the hydraulic cylinder body 6 is fixedly arranged on the top side of the connecting plate B5, and the hydraulic cylinder body 6 is selected and used by the technical personnel of this profession according to the actual situation; the crossbeam 7 is fixedly arranged on the outer end of the piston rod of the hydraulic cylinder body 6; a number of nozzles 9 are equidistantly arranged on one side of the crossbeam 7 through the clamping structure 8, and the nozzles 9 are connected to the external release agent pumping device through a hose; wherein, a number of nozzles 9 correspond to the casting cavity of the lower mold body 2.

[0045] The utility model has the advantages of uniformly spraying the release agent in the casting cavity of the lower mold body 2 by arranging the connecting plate A3, the supporting plate 4, the connecting plate B5, the hydraulic cylinder body 6, the cross beam 7 and the nozzle 9. The release agent is atomized and contacts the inner wall of the casting cavity, and is evenly distributed, thereby solving the problem of uneven distribution of the release agent, which affects the demoulding of the joint and further affects the molding quality of the joint.

[0046] Specifically, the clamping structure 8 includes a fixed block 801, an arc block A 802 and an arc block B 804;

[0047] The fixed block 801 is fixed on one side of the crossbeam 7; the outer wall of the arc block A802 is fixedly connected to the arc side of the fixed block 801; the inner ends of the two arc blocks B804 are respectively connected to the two ends of the arc block A802 through the elastic components 803; wherein, a gap is provided between the outer ends of the two arc blocks B804; wherein, the cylinder of the nozzle 9 is snap-fitted with the snap ring formed by the arc block A802 and the two arc blocks B804.

[0048] The elastic component 803 includes a connecting block A 8031, a connecting block B 8032, a guide rod 8033, a limit block 8034 and a spring 8035;

[0049] The connecting block A8031 is fixed on the outer wall of the end of the arc block A802; the connecting block B8032 is fixed on the outer wall of the inner end of the arc block B804; the guide rod 8033 is passed through the connecting block B8032; wherein, one end of the guide rod 8033 is fixedly connected to the connecting block A8031; the limit block 8034 is fixedly arranged on the other end of the guide rod 8033; the spring 8035 is sleeved on the guide rod 8033 between the limit block 8034 and the connecting block B8032, and the two ends of the spring 8035 are respectively fixedly connected to the limit block 8034 and the connecting block B8032, and the elastic coefficient of the spring 8035 is selected and used by the technical personnel in this profession according to the actual situation.

[0050] The utility model has the advantages of fastening the nozzle 9 and having a longer service life than a deformable plastic ring by arranging a fixing block 801, an arc block A802, an arc block B804, a connecting block A8031, a connecting block B8032, a guide rod 8033, a limit block 8034 and a spring 8035, so that the two arc blocks B804 can be moved laterally outward without bending the arc block B804, thereby achieving quick clamping of the nozzle 9.

[0051] Furthermore, a collar 901 is sleeved on the cylinder of the nozzle 9 , arc grooves 8041 are opened inside the two arc blocks B804 , and an arc groove is opened inside the arc block A802 . The two arc grooves 8041 are connected and matched with the arc groove and are snap-fitted with the collar 901 .

[0052] The utility model provides the arc groove 8041, the arc groove and the collar 901, and has the advantage of the collar 901 being clamped with the arc groove 8041 and the arc groove, so that the nozzle 9 can be further kept stable when the nozzle 9 is positioned.

[0053] Working principle: Using the device of the utility model, the nozzle 9 is correspondingly clamped between the two arc blocks B804 and the arc block A802, and the ring 901 is pushed into the arc groove 8041 of the two arc blocks B804 from the gap between the outer ends of the two arc blocks B804. The two arc blocks B804 are squeezed and moved away from each other, and the connecting block B8032 moves outward along the guide rod 8033. The spring 8035 is further compressed, and the ring 901 is clamped with the arc groove. Under the action of the spring 8035, the arc groove 8041 of the two arc blocks B804 clamps the ring 901 to position the nozzle 9, and the nozzle 9 is connected to the external release agent pumping device through a hose.

[0054] Before die-casting the joint, the upper mold body 1 and the lower mold body 2 are separated, the hydraulic cylinder body 6 pushes the piston rod outward, drives the cross beam 7 and the nozzle 9 to move, and moves the nozzle 9 to the top of the casting cavity of the lower mold body 2. Several nozzles 9 are evenly distributed along the casting cavity. The external mold release agent pumping device pumps the mold release agent to the nozzle 9 through a hose and sprays it from the nozzle 9 evenly on the inner wall of the casting cavity. Then the piston rod of the hydraulic cylinder body 6 moves back, the cross beam 7 and the nozzle 9 move back, and the upper mold body 1 and the lower mold body 2 are molded together for die casting.

[0055] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A mold structure for improving the molding quality of a drill rod joint, comprising an upper mold body (1) and a lower mold body (2), characterized in that: Also includes: A connecting plate A (3), the inner end of which is fixedly connected to the outer side of the lower mold body (2); A plurality of support plates (4) fixedly arranged on the top side of the outer end of the connecting plate A (3); A connecting plate B (5) is fixedly mounted on the top ends of the plurality of supporting plates (4); A hydraulic cylinder body (6) is fixedly mounted on the top side of the connecting plate B (5); A crossbeam (7) fixedly mounted on the outer end of the piston rod of the hydraulic cylinder body (6); A plurality of nozzles (9) are arranged at equal distances on one side of the cross beam (7) through a clamping structure (8); Wherein, a plurality of the nozzles (9) correspond to the casting cavity of the lower mold body (2).

2. A mold structure for improving the molding quality of a drill rod joint as claimed in claim 1, characterized in that: The clamping structure (8) comprises: A fixed block (801) is fixedly arranged on one side of the cross beam (7); The outer wall of the arc-shaped block A (802) is fixedly connected to the arc-shaped side of the fixing block (801); Two arc-shaped blocks B (804), the inner ends of which are respectively connected to the two ends of the arc-shaped block A (802) through elastic components (803); Wherein, a gap is provided between the outer ends of the two arc-shaped blocks B (804); The cylinder of the nozzle (9) is snap-fitted with a snap ring formed by the arc block A (802) and the two arc blocks B (804).

3. A mold structure for improving the molding quality of a drill rod joint as claimed in claim 2, characterized in that: The elastic component (803) comprises: A connecting block A (8031) is fixedly mounted on the outer wall of the end of the arc-shaped block A (802); A connecting block B (8032) is fixedly mounted on the outer wall of the inner end of the arc-shaped block B (804); A guide rod (8033) is passed through the connecting block B (8032); Wherein, one end of the guide rod (8033) is fixedly connected to the connecting block A (8031); A limit block (8034) is fixedly mounted on the other end of the guide rod (8033); The spring (8035) is sleeved on the guide rod (8033) between the limiting block (8034) and the connecting block B (8032).

4. A mold structure for improving the molding quality of a drill rod joint as claimed in claim 2, characterized in that: A collar (901) is sleeved on the cylinder of the nozzle (9), an arc groove (8041) is opened inside the two arc blocks B (804), an arc groove is opened inside the arc block A (802), and the two arc grooves (8041) are connected and matched with the arc groove and are snap-fitted with the collar (901).

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