Gate valve bottom pouring system

Abstract

The utility model belongs to the technical field of gate valve pouring, and particularly relates to a gate valve bottom pouring system which comprises a bottom plate. A connecting assembly is arranged at the top of the bottom plate; a storage plate is fixedly connected to the connecting assembly; a casting box is placed at the top of the storage plate; a valve body cavity channel is arranged in the casting box; the bottom of the valve body cavity channel is communicated with two pairs of inner pouring channels; the end parts of the two pairs of ingates are jointly communicated with a cross gate; the end part of the transverse pouring gate is communicated with a straight pouring gate; the end parts of the pair of ingates are communicated with blind risers; by means of the structure, the sprue is arranged to be connected with the cross gate, the ingate and the valve body cavity channel, the blind riser and the open riser are matched, molten steel can enter the cross gate from the sprue and then enter the blind riser and the valve body cavity channel through the ingate, buffering is conducted through the sprue and the cross gate, and therefore the situation that molten steel is added from a pouring gate in a traditional mode is reduced; and casting molten steel cannot stably enter a valve body cavity channel, and sand washing and bottom shortening are easily caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of gate valve casting, in particular to a gate valve bottom casting system. Background Art

[0002] The gate valve is an important fluid control device, which consists of a valve stem, valve body, valve cover, gate, drive device and other parts. It is widely used in fire protection, water supply and drainage, air conditioning, petroleum and petrochemical, tap water projects in urban construction and sewage treatment projects.

[0003] The valve body of the gate valve is produced by casting. Usually, a sand mold is used to preset the valve body cavity and runner. Then, after the casting raw materials are mixed and melted, the molten steel raw materials are poured into the sand mold. After cooling and forming, it is demolded and further processed. During long-term use and observation, it was found that when the existing valve body is cast, the runner in the sand mold is at 45 degrees, which causes the molten steel to enter the valve body unsteadily, easily causing sand blasting and bottom shortening problems.

[0004] To this end, the utility model provides a gate valve bottom pouring system. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one problem raised in the background art, a gate valve bottom pouring system is proposed.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: the utility model is a gate valve bottom pouring system, comprising a bottom plate; a connecting assembly is provided on the top of the bottom plate; a storage plate is fixedly connected to the connecting assembly; a casting box is placed on the top of the storage plate; a valve body cavity is provided in the casting box; two pairs of ingates are connected at the bottom of the valve body cavity; the ends of the two pairs of ingates are commonly connected to a horizontal runner; the ends of the horizontal runner are connected to a straight runner; the ends of a pair of ingates are both connected to a blind riser; the valve body The top of the cavity is connected with multiple open risers; the side wall of the bottom plate is fixedly connected to a support frame; an adjustment component is provided in the middle of the support frame; through the above structure, a straight runner is set to connect the cross runner, the ingrowth runner and the valve body cavity, and with the blind riser and the open riser, the molten steel can enter the cross runner from the straight runner, and then enter the blind riser and the valve body cavity through the ingrowth runner, and is buffered by the straight runner and the cross runner to reduce the traditional method of adding molten steel from the runner, which causes the casting molten steel to enter the valve body cavity instability, easily causing sand blasting and bottom shortening.

[0007] Preferably, a first slider is installed on the adjusting assembly; a storage box is fixedly connected to the bottom of the first slider; a feed port is opened on the side wall of the storage box; a pair of baffles are rotatably connected to the bottom of the storage box; a pair of first cylinders are hingedly connected to the side wall of the first slider; the first cylinder and the baffle are correspondingly arranged; the end of the first cylinder is hinged to the side wall of the baffle; through the above structure, the storage box and the feed port are matched with the baffle and the first cylinder, which can facilitate the filling of sand in the casting box and reduce the situation of shoveling sand from the container into the casting box, resulting in cumbersome operation. At the same time, the opening size of the baffle can be changed by stretching the first cylinder to different lengths, so as to control the flow of sand raw materials.

[0008] Preferably, a second slider is installed on the adjusting assembly; a second cylinder is fixedly connected to the bottom of the second slider; a pressure plate is fixedly connected to the end of the second cylinder; the pressure plate is arranged corresponding to the casting box; through the above structure, the second cylinder and the pressure plate are arranged, which can facilitate the compaction of the sand raw materials in the casting box, so as to reduce the traditional manual operation using an impact hammer, which leads to a long compaction time and easy fatigue.

[0009] Preferably, the adjustment assembly includes a slide rail; the slide rail is fixed to the side wall of the support frame; the slide rail is located above the storage plate; the end of the slide rail is fixed to a motor; the output end of the motor is fixed to a screw; the middle part of the screw is threadedly connected to a first slider and a second slider; there is a gap between the first slider and the second slider; through the above structure, the slide rail is provided to connect the motor and the screw, which can facilitate the adjustment of the position of the first slider and the second slider relative to the casting box, so as to facilitate the replacement of the sand filling and compaction process of the casting box, thereby improving convenience during use.

[0010] Preferably, the connecting assembly includes multiple third cylinders; multiple third cylinders are fixed to the top of the base plate; the ends of the third cylinders are fixed to the bottom of the storage plate; a partition is fixed to the middle of the third cylinder; through the above structure, the third cylinder and the partition are set, and the casting box can be shaken to improve the uniformity of the sand raw material filling in the casting box and reduce the gaps between the sand raw materials.

[0011] Preferably, a pair of fixing rings are fixed to the side walls of the casting box; a pair of positioning rods are fixed to the top of the placement plate; the fixing rings and the positioning rods are arranged correspondingly; through the above structure, the fixing rings and the positioning rods are arranged to fix the position of the casting box, so as to improve the stability of the position of the casting box on the placement plate and reduce the stability during sand filling, compaction and shaking.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model discloses a gate valve bottom pouring system, which connects the runner with the ingode and the valve body cavity by setting a straight runner, and cooperates with the blind riser and the open riser, so that the molten steel can enter the runner from the straight runner, and then enter the blind riser and the valve body cavity through the ingode, and is buffered by the straight runner and the cross runner to reduce the traditional method of adding molten steel from the runner, which causes the casting molten steel to enter the valve body cavity unsteadily, easily causing sand washing and bottom shortening.

[0014] 2. The gate valve bottom pouring system described in the utility model can facilitate the filling of sand into the casting box by setting a storage box and a feed port in conjunction with a baffle and a first cylinder, thereby reducing the cumbersome operation caused by shoveling sand from the container into the casting box. At the same time, the opening size of the baffle can be changed by stretching the first cylinder to different lengths, thereby achieving the effect of controlling the flow of sand raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the valve body cavity in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the slide rail in the utility model;

[0019] Figure 4 It is a structural diagram of the material storage box in the utility model;

[0020] Figure 5 It is a structural diagram of the casting box in the utility model.

[0021] Legend:

[0022] 1. Bottom plate; 11. Storage plate; 12. Casting box; 13. Sprue; 14. Horizontal runner; 15. Ingate; 16. Concealed riser; 17. Visible riser; 18. Valve body cavity; 19. Support frame; 2. First slider; 21. Storage box; 22. Feed port; 23. Baffle; 24. First cylinder; 3. Second slider; 31. Second cylinder; 32. Press plate; 4. Slide rail; 41. Motor; 42. Screw; 5. Third cylinder; 51. Partition; 6. Fixing ring; 61. Positioning rod; 7. Spacer. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Specific examples are given below.

[0025] like Figures 1 to 5 As shown, a gate valve bottom pouring system described in an embodiment of the present invention includes a bottom plate 1; a connecting component is provided on the top of the bottom plate 1; a storage plate 11 is fixedly connected to the connecting component; a casting box 12 is placed on the top of the storage plate 11; a valve body cavity 18 is provided in the casting box 12; two pairs of ingrowns 15 are connected at the bottom of the valve body cavity 18; the ends of the two pairs of ingrowns 15 are commonly connected to a cross runner 14; the ends of the cross runner 14 are connected to a straight runner 13; the ends of a pair of ingrowns 15 are both connected to a blind riser 16; the top of the valve body cavity 18 is connected to a plurality of open risers 17; a support frame 19 is fixedly connected to the side wall of the bottom plate 1; an adjusting component is provided in the middle of the support frame 19; during operation, sand raw materials are added into the casting box 12 when making the sand mold, and then the overall shape of the straight runner 13, the cross runner 14, the ingrown runner 15, the blind riser 16, the open riser 17, and the valve body cavity 18 are formed through processing. , and then inject the molten steel through the sprue 13. At this time, the molten steel will flow into the runner 14 along the sprue 13, and then flow into the blind riser 16 from the inner runner 15 into the valve body cavity 18. The molten steel can enter from one side of the valve body cavity 18. At this time, the molten steel can be kept away from the valve body cavity 18 first, and then the valve body cavity 18 is filled from the bottom. When the molten steel is exposed from the open riser 17, the injection of the molten steel is stopped, and the demoulding is carried out after the molten steel solidifies. Through the above structure, The sprue 13 connects the runner 14 with the ingrown runner 15 and the valve body cavity 18, and cooperates with the blind riser 16 and the exposed riser 17 to allow the molten steel to enter the runner 14 from the sprue 13, and then enter the blind riser 16 and the valve body cavity 18 through the ingrown runner 15. The sprue 13 and the runner 14 are used for buffering to reduce the traditional method of adding molten steel from the 45-degree runner, which causes the casting molten steel to enter the valve body cavity 18 in an unstable manner, which is easy to cause sand blasting and bottom shortening.

[0026] like Figures 1 to 4As shown, the adjusting assembly is provided with a first slider 2; a storage box 21 is fixedly connected to the bottom of the first slider 2; a feeding port 22 is provided on the side wall of the storage box 21; a pair of baffles 23 are rotatably connected to the bottom of the storage box 21; a pair of first cylinders 24 are hingedly connected to the side wall of the first slider 2; the first cylinders 24 and the baffles 23 are correspondingly arranged; the end of the first cylinder 24 is hingedly connected to the side wall of the baffle 23; when working, when adding sand raw materials to the casting box 12, the sand raw materials are first added into the storage box 21 from the feeding port 22, and then the first cylinder 24 is started to stretch to open the baffle 23, and then part of the sand raw materials are added. The sand is then poured into the casting box 12, and the first cylinder 24 is started to contract to close the baffle 23. After some of the sand raw materials entering the casting box 12 are compacted, the baffle 23 is opened again to add the sand raw materials, and then compacted. This cycle can complete the overall sand filling and molding. Through the above structure, the storage box 21 and the feed port 22 are arranged to cooperate with the baffle 23 and the first cylinder 24, which can facilitate the filling of sand in the casting box 12 and reduce the situation of shoveling sand from the container into the casting box 12, which leads to cumbersome operations. At the same time, the opening size of the baffle 23 can be changed by stretching the first cylinder 24 to different lengths, so as to control the flow rate of the sand raw materials.

[0027] like Figure 3 As shown, a second slider 3 is installed on the adjusting assembly; a second cylinder 31 is fixedly connected to the bottom of the second slider 3; a pressure plate 32 is fixedly connected to the end of the second cylinder 31; the pressure plate 32 is arranged corresponding to the casting box 12; during operation, after the sand raw material is filled into the casting box 12, the second cylinder 31 can be started to continuously stretch and contract, which can drive the pressure plate 32 to descend and rise. At this time, the pressure plate 32 can compact the sand raw material in the casting box 12 below. Through the above structure, the second cylinder 31 and the pressure plate 32 are arranged, which can facilitate the compaction of the sand raw material in the casting box 12, so as to reduce the traditional use of impact hammers for manual operation, resulting in a long compaction time and easy fatigue.

[0028] like Figure 3As shown, the adjustment assembly includes a slide rail 4; the slide rail 4 is fixedly connected to the side wall of the support frame 19; the slide rail 4 is located above the storage plate 11; the end of the slide rail 4 is fixedly connected to a motor 41; the output end of the motor 41 is fixedly connected to a screw 42; the middle part of the screw 42 is threadedly connected to the first slider 2 and the second slider 3; there is a gap between the first slider 2 and the second slider 3; when working, starting the motor 41 will drive the screw 42 to rotate, at this time, it can drive the first slider 2 and the second slider 3 to slide in the slide rail 4, when sand filling is required, the motor 41 can be rotated counterclockwise to drive the first slider 2 and the second slider 3 to slide. A slider 2 and a storage box 21 are moved to the top of the casting box 12 and then sand is filled. When the sand raw material needs to be compacted, the motor 41 is started to rotate clockwise to drive the first slider 2 away from the top of the casting box 12, and the second slider 3 and the second cylinder 31 and the pressure plate 32 are moved to the top of the casting box 12, and then the compaction work is carried out. Through the above structure, a slide rail 4 is set to connect the motor 41 and the screw 42, which can facilitate the adjustment of the position of the first slider 2 and the second slider 3 relative to the casting box 12, so as to facilitate the replacement of the sand filling and compaction process of the casting box 12 to improve the convenience during use.

[0029] like Figure 5 As shown, the connecting assembly includes multiple third cylinders 5; multiple third cylinders 5 are fixedly connected to the top of the bottom plate 1; the ends of the third cylinders 5 are fixedly connected to the bottom of the storage plate 11; the middle of the third cylinder 5 is fixedly connected to a partition 51; during operation, after a part of the sand raw materials are filled into the casting box 12, the third cylinder 5 is started to continuously stretch and contract, and at this time, the storage plate 11 and the casting box 12 can be driven to continuously move up and down. When the storage plate 11 contacts the partition 51 below, the casting box 12 can be shaken, thereby shaking the sand raw materials inside evenly. Through the above structure, the third cylinder 5 and the partition 51 are set, and the casting box 12 can be shaken to improve the uniformity of the sand raw materials filling in the casting box 12 and reduce the gaps between the sand raw materials.

[0030] like Figure 5 As shown, a pair of fixing rings 6 are fixed to the side walls of the casting box 12; a pair of positioning rods 61 are fixed to the top of the placement plate 11; the fixing rings 6 and the positioning rods 61 are arranged correspondingly; during operation, when the casting box 12 is placed on the placement plate 11, the fixing rings 6 are aligned with the positioning rods 61. After the casting box 12 is placed on the placement plate 11, the fixing rings 6 and the positioning rods 61 can fix the position of the casting box 12. Through the above structure, the fixing rings 6 and the positioning rods 61 are set, and the position of the casting box 12 can be fixed to improve the stability of the position of the casting box 12 on the placement plate 11, and reduce the stability during sand filling, compaction, and shaking.

[0031] like Figure 5As shown, a pair of pads 7 are fixed to the top of the partition 51; the pair of pads 7 are symmetrically arranged; the pads 7 are made of flexible material; during operation, when the third cylinder 5 drives the storage plate 11 to descend, the storage plate 11 will contact the pads 7 on the top of the partition 51. Through the above structure, the provision of the pads 7 can reduce the damage caused by the collision between the storage plate 11 and the partition 51.

[0032] Working principle: When making a sand mold, sand raw materials are added to the casting box 12, and then processed to form the overall shape of the sprue 13, cross runner 14, ingode 15, blind riser 16, open riser 17, and valve body cavity 18. Then, molten steel is injected through the sprue 13. At this time, the molten steel will flow along the sprue 13 into the cross runner 14, and then flow from the ingode 15 into the blind riser 16 into the valve body cavity 18. The molten steel can enter from one side of the valve body cavity 18. At this time, the molten steel can be kept away from the valve body cavity 18 first, and then the valve body cavity 18 is filled from the bottom. When the molten steel emerges from the open riser 17, the injection of molten steel is stopped. , wait until the molten steel solidifies before demoulding. When adding sand raw materials to the casting box 12, first add the sand raw materials into the storage box 21 from the feed port 22, then start the first cylinder 24 to stretch and open the baffle 23, then add part of the sand raw materials into the casting box 12, and then start the first cylinder 24 to shrink and close the baffle 23, and then compact the part of the sand raw materials entering the casting box 12, open the baffle 23 again to add the sand raw materials, and then compact again, and the whole sand filling molding can be completed in this cycle. After the sand raw materials are filled into the casting box 12, the second cylinder 31 can be started to continuously stretch and shrink, which can drive the pressing plate 32 The first slider 2 and the second slider 3 are driven to slide in the slide rail 4. When sand filling is required, the motor 41 is rotated counterclockwise to drive the first slider 2 and the storage box 21 to move to the top of the casting box 12 and then fill the sand. When the sand raw materials need to be compacted, the motor 41 is started and rotated clockwise to drive the first slider 2 away from the top of the casting box 12, and the second slider 3, the second cylinder 31 and the pressure plate 32 are moved to the top of the casting box 12, and then the compaction work is carried out. When part of the sand raw materials are required to be compacted, the motor 41 is started and rotated clockwise to drive the first slider 2 away from the top of the casting box 12, and the second slider 3, the second cylinder 31 and the pressure plate 32 are moved to the top of the casting box 12 and then compaction is carried out. After filling the casting box 12, start the third cylinder 5 to continuously stretch and contract, which can drive the placement plate 11 and the casting box 12 to continuously move up and down. When the placement plate 11 contacts the partition 51 below, the casting box 12 can shake, thereby shaking the sand raw materials inside evenly. When the casting box 12 is placed on the placement plate 11, align the fixing ring 6 with the positioning rod 61. After the casting box 12 is placed on the placement plate 11, the fixing ring 6 and the positioning rod 61 can fix the position of the casting box 12. When the third cylinder 5 drives the placement plate 11 to descend, the placement plate 11 will contact the pad 7 on the top of the partition 51.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A gate valve bottom pouring system, comprising a bottom plate (1); characterized in that: The top of the bottom plate (1) is provided with a connecting assembly; a storage plate (11) is fixedly connected to the connecting assembly; a casting box (12) is placed on the top of the storage plate (11); a valve body cavity (18) is provided in the casting box (12); the bottom of the valve body cavity (18) is connected to two pairs of ingrowns (15); the ends of the two pairs of ingrowns (15) are commonly connected to a horizontal runner (14); the ends of the horizontal runner (14) are connected to a straight runner (13); the ends of a pair of ingrowns (15) are both connected to a hidden riser (16); the top of the valve body cavity (18) is connected to a plurality of visible risers (17); a support frame (19) is fixedly connected to the side wall of the bottom plate (1); an adjustment assembly is provided in the middle of the support frame (19).

2. A gate valve bottom pouring system according to claim 1, characterized in that: A first slider (2) is mounted on the adjustment assembly; a material storage box (21) is fixedly connected to the bottom of the first slider (2); a material feed port (22) is provided on the side wall of the material storage box (21); a pair of baffles (23) are rotatably connected to the bottom of the material storage box (21); a pair of first cylinders (24) are hingedly connected to the side wall of the first slider (2); the first cylinders (24) and the baffles (23) are correspondingly arranged; and an end of the first cylinder (24) is hingedly connected to the side wall of the baffle (23).

3. A gate valve bottom pouring system according to claim 1, characterized in that: A second slider (3) is mounted on the adjustment assembly; a second cylinder (31) is fixedly connected to the bottom of the second slider (3); a pressure plate (32) is fixedly connected to the end of the second cylinder (31); the pressure plate (32) is arranged corresponding to the casting box (12).

4. A gate valve bottom pouring system according to claim 1, characterized in that: The adjustment assembly includes a slide rail (4); the slide rail (4) is fixed to the side wall of the support frame (19); the slide rail (4) is located above the storage plate (11); the end of the slide rail (4) is fixed to a motor (41); the output end of the motor (41) is fixed to a screw rod (42); the middle part of the screw rod (42) is threadedly connected to a first slider (2) and a second slider (3); and there is a gap between the first slider (2) and the second slider (3).

5. The gate valve bottom pouring system according to claim 1, characterized in that: The connecting assembly comprises a plurality of third cylinders (5); the plurality of third cylinders (5) are all fixedly connected to the top of the bottom plate (1); the ends of the third cylinders (5) are fixedly connected to the bottom of the storage plate (11); and a partition (51) is fixedly connected to the middle of the third cylinders (5).

6. The gate valve bottom pouring system according to claim 1, characterized in that: A pair of fixing rings (6) are fixedly connected to the side walls of the casting box (12); a pair of positioning rods (61) are fixedly connected to the top of the storage plate (11); and the fixing rings (6) and the positioning rods (61) are correspondingly arranged.

7. A gate valve bottom pouring system according to claim 5, characterized in that: A pair of pads (7) are fixedly connected to the top of the partition (51); the pair of pads (7) are symmetrically arranged; and the pads (7) are made of a flexible material.

Images