Insertion plate structure of nodular cast iron pipe core machine feed opening gate valve

Abstract

The utility model discloses a flashboard structure of a nodular cast iron pipe core machine feed opening gate valve, which belongs to the technical field of nodular cast iron pipe core machines, and comprises a sand adding valve and a flashboard valve box body, the sand adding valve is arranged at the bottom of the flashboard valve box body, the sand adding valve comprises a flashboard and a cylinder, the flashboard is connected with the cylinder, the cylinder is arranged on the outer side of the flashboard valve box body, and the flashboard is connected with the flashboard. Sliding rails are symmetrically arranged on the two sides of the bottom of the gate valve box and clamped with the gate plate, a discharging hole is formed in the gate plate, the distance between the discharging hole and the outer edge of the gate plate is larger than the diameter of the discharging hole, a discharging channel is arranged in the gate valve box, and the diameter of an outlet in the lower end of the discharging channel is the same as that of the discharging hole. The flashboard structure drives the flashboard to move leftwards and rightwards by pushing and pulling the air cylinder leftwards and rightwards, so that the problems of sand accumulation and blanking port blockage are solved, the work of cleaning the sand adding valve by workers is thoroughly eliminated, various faults of the sand adding valve are thoroughly eliminated, the working efficiency of the core making machine is improved, and a large amount of working time loss is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of a ductile iron pipe core machine, and more specifically to a plug plate structure of a gate valve for a feed port of a ductile iron pipe core machine. Background Art

[0002] The ductile iron pipe core machine is a device that injects a mixture of liquid resin and core sand into the core box, and then blows in triethylamine to solidify the core sand, thereby obtaining a sand core with a smooth surface and precise size. The sand adding valve is a valve that adds the mixture from the silo to the sand shooting tube. The existing sand adding valve is a flap structure, such as Figure 1 This structure will roll some sand into the gap between the discharge pipe and the gate box when closing the sand discharge channel. The repeated opening and closing of the gate will cause the sand to accumulate and block the discharge port, resulting in time-consuming and labor-intensive cleaning. Utility Model Content

[0003] The utility model aims to overcome the problem that the flap structure of the sand adding valve in the prior art is easy to block the feed port, and provides a plug plate structure of a gate valve for the feed port of a ductile iron pipe core machine to solve the above disadvantages.

[0004] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0005] The utility model discloses a plug plate structure of a gate valve for a feed port of a ductile iron pipe core machine, comprising a sand adding valve, a hopper and a plug plate valve box, wherein the hopper is arranged at the upper end of the plug plate valve box, the sand adding valve is arranged at the bottom of the plug plate valve box, the sand adding valve comprises a gate plate and a cylinder, the gate plate is connected to the cylinder, the cylinder is arranged at the outside of the plug plate valve box, slide rails are symmetrically arranged on both sides of the bottom of the plug plate valve box, the slide rails are engaged with the gate plate, a feed hole is arranged on the gate plate, the distance between the feed hole and the outer edge of the gate plate is greater than the diameter of the feed hole, a feed channel is arranged in the plug plate valve box, the outlet diameter of the lower end of the feed channel is the same as the diameter of the feed hole, the hopper comprises a feed circular tube and a sand cylinder, the sand cylinder is connected to the upper end of the feed circular tube, the sand cylinder is also connected to a vibrator, the feed circular tube is connected to the upper end of the plug plate valve box through a sleeved rubber, and the feed circular tube is arranged above the feed channel.

[0006] Preferably, the plug valve box includes a left side plate, a bottom plate, a supporting trapezoidal plate and a connecting side plate, the left side plate is symmetrically connected to the supporting trapezoidal plates on both sides, the two supporting trapezoidal plates are connected to the connecting side plates, and the bottom plate is arranged at the lower ends of the left side plate and the supporting trapezoidal plates.

[0007] Preferably, the cylinder is arranged on the outside of the connecting side plate, a square hole is opened on the bottom plate, and the slide rails are symmetrically arranged on both sides of the bottom of the bottom plate.

[0008] Preferably, the gate valve box also includes a top plate, and the top plate is arranged at the upper end of the left side plate and the supporting trapezoidal plate. The gate structure of the feed port gate valve of the ductile iron pipe core machine also includes a hopper, and the hopper is arranged at the upper end of the top plate. The hopper is arranged at the upper end of the top plate.

[0009] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0010] The utility model discloses a plug plate structure of a gate valve for a discharge port of a ductile iron pipe core making machine. The plug plate structure drives the gate plate to move left and right through the left and right push and pull of the cylinder, thereby solving the problem of sand material accumulation and blockage of the discharge port, completely eliminating the labor of workers to clean the sand adding valve, completely eliminating various faults of the sand adding valve, improving the working efficiency of the core making machine and saving a lot of man-hour loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural diagram of a flap structure and a sand valve in the prior art;

[0012] Figure 2 It is a schematic diagram of the plug plate structure of a gate valve for a feed port of a ductile iron pipe core machine according to the utility model;

[0013] Figure 3 This is a structural diagram of the sand adding valve and the plug valve box of the utility model;

[0014] Figure 4 This is another perspective view of the sand adding valve and the plug valve box structure of the utility model.

[0015] In the figure: 1. sand adding valve; 11. gate; 111. discharge hole; 12. cylinder; 2. hopper; 21. discharge pipe; 22. sand cylinder; 23. vibrator; 3. plug valve box; 31. slide rail; 32. discharge channel; 33. left side plate; 34. bottom plate; 35. top plate; 36. supporting trapezoidal plate; 37. connecting side plate; 38. square hole; 4. rubber. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0018] Combination Figure 3 and Figure 4The utility model discloses a gate structure of a gate valve for a ductile iron pipe core machine, comprising a sand adding valve 1, a hopper 2 and a gate valve housing 3. The hopper 2 is arranged at the upper end of the gate valve housing 3, and the sand adding valve 1 is arranged at the bottom of the gate valve housing 3. The sand adding valve 1 comprises a gate 11 and a cylinder 12. The gate 11 is connected to the cylinder 12. The cylinder 12 is arranged at the outside of the gate valve housing 3. The gate 11 is pushed and pulled by the cylinder 12 to realize the filling and cutting off of the sand core sand material. The bottom of the gate valve housing 3 is symmetrically provided with slide rails 31 on both sides. The slide rails 31 are engaged with the gate 11. The gate 11 can slide back and forth on the slide rails 31. A feeding hole 111 is provided on the gate 11. The diameter of the feeding hole 111 is 147 mm. The distance between the feeding hole 111 and the outer edge of the gate 11 is greater than 1 90mm, a feeding channel 32 is arranged in the gate valve housing 3, the outlet diameter of the lower end of the feeding channel 32 is the same as the diameter of the feeding hole 111, that is, 147mm, and the outlet edge of the lower end of the feeding channel 32 is about 40mm away from the outer edge of the bottom plate 34. The hopper 2 includes a feeding circular tube 21 and a sand cylinder 22. The sand cylinder 22 is in a funnel shape for easy insertion of sand. The sand cylinder 22 is connected to the upper end of the feeding circular tube 21, and a vibrator 23 is also connected to the sand cylinder 22. The feeding circular tube 21 is softly connected to the upper end of the gate valve housing 3 through a sleeved rubber 4. The structure in which the hopper 2 is separated from the gate valve housing 3 makes it difficult for the gate valve housing 3 to be affected by the vibration of the hopper 2, causing the screw parts and the limit switch to loosen. The feeding circular tube 21 is arranged above the feeding channel 32 and the sand is passed through it correspondingly.

[0019] The gate valve box 3 includes a left side plate 33, a bottom plate 34, a supporting trapezoidal plate 36 and a connecting side plate 37. The supporting trapezoidal plates 36 are symmetrically arranged on both sides of the left side plate 33. The two supporting trapezoidal plates 36 are connected to the connecting side plate 37. The bottom plate 34 is connected to the lower ends of the left side plate 33 and the supporting trapezoidal plates 36.

[0020] The cylinder 12 is arranged outside the connecting side plate 37 , a square hole 38 is opened on the bottom plate 34 for convenient observation of the moving state of the gate plate 11 , and the slide rails 31 are symmetrically connected to both sides of the bottom of the bottom plate 34 .

[0021] Combination Figure 2-Figure 4 The gate valve box 3 also includes a top plate 35, the top plate 35 is connected to the upper end of the left plate 33 and the supporting trapezoidal plate 36, and the gate structure of the ductile iron pipe core machine feed port gate valve also includes a hopper 2, the hopper 2 is movably connected to the upper end of the top plate 35, and the hopper 2 is arranged at the upper end of the top plate 35.

[0022] Working principle: the cylinder 12 extends and retracts left and right to push the gate plate 11 to move left and right on the slide rail 31. When the discharge hole 111 on the gate plate 11 is below the lower end outlet of the discharge channel 32, the sand adding valve 1 discharges the material, and the discharge hole 111 is away from the discharge channel 32. When the lower end outlet of the discharge channel 32 is closed, the sand adding stops.

[0023] In summary: the utility model is a gate structure of the gate valve of the discharge port of a ductile iron pipe core making machine, in which the gate plate 11 is pushed by the cylinder 12 to slide back and forth on the slide rail 31, which solves the problem of residual solidified sand, eliminates the labor of workers cleaning the sand adding valve 1 and the gate valve box 3, eliminates various faults of the sand adding valve 1 and the gate valve box 3, improves the working efficiency of the core making machine and saves a lot of man-hour loss.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gate structure for a gate valve of a ductile iron pipe core machine, comprising a sand adding valve (1), a hopper (2) and a gate valve housing (3), characterized in that: The hopper (2) is arranged at the upper end of the gate valve housing (3); the sand adding valve (1) is arranged at the bottom of the gate valve housing (3); the sand adding valve (1) comprises a gate plate (11) and a cylinder (12); the gate plate (11) is connected to the cylinder (12); the cylinder (12) is arranged outside the gate valve housing (3); slide rails (31) are symmetrically arranged on both sides of the bottom of the gate valve housing (3); the slide rails (31) are engaged with the gate plate (11); a material discharge hole (111) is arranged on the gate plate (11); and the distance between the material discharge hole (111) and the outer edge of the gate plate (11) is 1 / 4 of the distance between the material discharge hole (111) and the outer edge of the gate plate (11). The diameter of the discharge hole (111) is larger than that of the discharge hole (111). A discharge channel (32) is arranged in the gate valve housing (3). The outlet diameter of the lower end of the discharge channel (32) is the same as the diameter of the discharge hole (111). The hopper (2) comprises a discharge circular tube (21) and a sand cylinder (22). The sand cylinder (22) is connected to the upper end of the discharge circular tube (21). A vibrator (23) is also connected to the sand cylinder (22). The discharge circular tube (21) is connected to the upper end of the gate valve housing (3) through a sleeved rubber (4). The discharge circular tube (21) is arranged above the discharge channel (32).

2. The gate plate structure of the gate valve of the feed port of the ductile iron pipe core machine according to claim 1 is characterized by: The gate valve housing (3) comprises a left side plate (33), a bottom plate (34), a supporting trapezoidal plate (36) and a connecting side plate (37); the supporting trapezoidal plates (36) are symmetrically connected to both sides of the left side plate (33); the two supporting trapezoidal plates (36) are connected to the connecting side plate (37); and the bottom plate (34) is arranged at the lower ends of the left side plate (33) and the supporting trapezoidal plates (36).

3. The gate plate structure of the gate valve of the feed port of the ductile iron pipe core machine according to claim 2 is characterized by: The cylinder (12) is arranged on the outside of the connecting side plate (37), a square hole (38) is opened on the bottom plate (34), and the slide rails (31) are symmetrically arranged on both sides of the bottom of the bottom plate (34).

4. The gate plate structure of the gate valve of the feed port of the ductile iron pipe core machine according to claim 2 is characterized by: The gate valve housing (3) further comprises a top plate (35), which is arranged on the upper ends of the left side plate (33) and the supporting trapezoidal plate (36), and the hopper (2) is arranged on the upper end of the top plate (35).

Images