Connecting plate for quick change of sand shooting disc

Abstract

The utility model relates to a connecting plate for quick change of a sand shooting disc in the technical field of precoated sand of core shooters, which comprises a plate body arranged between the bottom surface of a sand silo and the sand shooting disc, the outer edge of the upper plate surface of the plate body is correspondingly sealed and detachably connected with the outer edge of the bottom surface of the sand silo, and the center of the plate body is provided with a transition slot hole for sand to pass through; a plurality of sealing ring grooves used for installing sealing strips are formed in the lower plate face of the plate body around the long transition hole from inside to outside, two first kidney-shaped holes in the width direction of the long transition hole are symmetrically formed outside the two ends of the long transition hole, and two second kidney-shaped holes in the length direction of the long transition hole are symmetrically formed outside the two sides of the long transition hole. The first kidney-shaped hole and the second kidney-shaped hole are both located in the portion, between the transition long hole and the innermost sealing ring groove, of the plate face of the plate body, and the first kidney-shaped hole and the second kidney-shaped hole are both correspondingly connected with mounting holes in the corresponding disc edges of the sand shooting disc through penetrating first bolts. According to the connecting plate, the remodeling speed can be increased, and meanwhile the sealing performance and applicability are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of coated sand for core shooting machines, in particular to a connecting plate for quick replacement of sand shooting discs. Background Art

[0002] As is known, the coated sand process shell making adopts the core shooting machine to make the shell. There are many models of core shooting machines. Each manufacturer will purchase core shooting machines according to its own product structure. However, the types of products produced are often more than the models of core shooting machines, and the positions of the sand injection ports of the product molds are different when they are designed. When replacing the mold, the sand shooting disc of the core shooting machine must be replaced accordingly to ensure that the sand shooting port of the core shooting machine matches the sand injection port of the mold. Since the sand shooting disc and the sand bin of the core shooting machine need to have strong sealing and good heat resistance, the traditional method is to fix them with glue, which takes a long time to cure, and it takes about 24 to 72 hours to meet the use requirements, thereby restricting the speed of replacing the mold of the sand shooting machine. In addition, the glue has an irritating odor, which is harmful to the body. Long-term disassembly and assembly leads to the peeling of the glue and pollutes the environment.

[0003] In order to avoid frequent disassembly and assembly of the sand shooting disc, which may lead to sealing problems, pollution problems and efficiency problems, the existing patented technology will set up multiple rows and columns of sand shooting holes in a matrix in the center of the sand shooting disc or the sand shooting plate. The sand shooting holes are set as thread holes and are equipped with thread plugs. According to the needs of the injection hole positions of the mold, the redundant sand shooting holes can be blocked with thread plugs, thereby avoiding the problem of disassembly and assembly of the sand shooting disc; however, when there are many sand shooting holes, the problem of disassembly and assembly sealing efficiency of the thread plug still exists, and the sand residue retained in the threaded hole is likely to affect the screwing and sealing. Because the sand shooting holes are arranged at intervals and lack continuity, its adjustment and adaptation are also limited. Utility Model Content

[0004] In order to overcome the deficiencies in the background technology and solve the existing technical problems, the utility model discloses a connection plate for quick-changing sandblasting discs, which can improve the speed of changing molds while ensuring sealing and applicability.

[0005] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0006] A connecting plate for quick replacement of sand shooting discs, comprising a plate body arranged between the bottom surface of a sand bin and the sand shooting disc, the outer edge of the upper plate surface of the plate body being correspondingly sealed and detachably connected to the outer edge of the bottom surface of the sand bin, a transition long hole for the passage of sand being provided in the center of the plate body; a plurality of sealing ring grooves for installing sealing strips are provided on the lower plate surface of the plate body surrounding the transition long hole from the inside to the outside, two first waist-shaped holes along the width direction of the transition long hole are symmetrically provided on the two ends of the transition long hole, two second waist-shaped holes along the length direction of the transition long hole are symmetrically provided on the two sides of the transition long hole, the first waist-shaped hole and the second waist-shaped hole are both located on the plate surface of the plate body between the transition long hole and the innermost sealing ring groove, and the first waist-shaped hole and the second waist-shaped hole are correspondingly connected to the mounting holes on the corresponding edge of the sand shooting disc by penetrating first bolts.

[0007] Furthermore, two long holes along the length direction of the transition long hole are symmetrically provided on the two end plate surfaces of the plate body, and the long holes are correspondingly connected to the mounting holes at the corresponding outer edges of the bottom surface of the sand bin by penetrating second bolts.

[0008] Furthermore, the outer end wall of the elongated hole is connected to the corresponding end surface of the plate body to form a notch.

[0009] Furthermore, the plate body and the outer edge gap of the bottom surface of the sand bin are sealed and fixed by gluing.

[0010] Furthermore, the number of the sealing ring grooves is two or three.

[0011] Furthermore, the transition long hole is arranged along the length direction of the plate body, and the sealing ring groove is set as a square ring.

[0012] Furthermore, the hole ends of the first waist-shaped hole and the second waist-shaped hole corresponding to the upper plate surface of the plate body are both provided with countersunk steps for hiding the bolt head of the first bolt.

[0013] Furthermore, the bottom ends of both side walls of the first bolt head have shovel edges extending horizontally outward.

[0014] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0015] The connecting plate for quick-changing sand shooting discs disclosed by the utility model can directly connect and seal the connecting plate to the sand bin of the core shooting machine without frequent disassembly and assembly, and then utilizes the adjustment adaptability of the first waist-shaped hole and the second waist-shaped hole to ensure that sand shooting discs of different models can be installed accordingly and quickly adjust their positions, and the sealing strip in the sealing ring groove can also ensure the sealing of the installation, thereby ensuring adaptability and sealing while improving the changeover speed, saving time, and greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a perspective three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is another perspective three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the installation structure of the utility model;

[0019] Figure 4 is a schematic structural diagram of the first bolt.

[0020] In the figure: 1, plate body; 2, transition long hole; 3, second waist-shaped hole; 4, first waist-shaped hole; 5, long hole; 6, sealing ring groove; 7, first bolt; 8, scraping edge; 9, second bolt. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" and the like indicating directions or positional relationships, they are only corresponding to the drawings of the present invention, for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction:

[0022] Combined with Figure 1-4 The connecting plate for quick-changing the sand-shooting disc comprises a plate body 1 arranged between the bottom surface of the sand bin and the sand-shooting disc, the outer edge of the upper plate surface of the plate body 1 corresponds to the outer edge of the bottom surface of the sand bin and is sealed and detachably connected, the sealing can be achieved by a sealing ring, or the gap between the plate body 1 and the outer edge of the bottom surface of the sand bin is sealed and fixed by gluing, because the plate body 1 generally does not need to be disassembled, so the sealing life is longer and the harmful impact is smaller; according to needs, two long holes 5 along the length direction of the transition long hole 2 are symmetrically provided on the two end surfaces of the plate body 1, and the long holes 5 are correspondingly connected to the mounting holes at the corresponding outer edges of the bottom surface of the sand bin by penetrating second bolts 9, and the long holes 5 can be adapted to different types of core-shooting machines for installation; in addition, the hole wall at the outer end of the long hole 5 is connected to the corresponding end surface of the plate body 1 to form a notch, and the notch structure ensures that the second bolt 9 at one end of the plate body 1 does not need to be completely removed during disassembly and assembly, thereby improving the convenience of disassembly and assembly; a transition long hole 2 for the passage of sand is provided in the center of the plate body 1, and the transition long hole 2 is arranged along the length direction of the plate body 1, and the size of the transition long hole 2 determines the required sand leakage cross-sectional area;

[0023] The lower plate surface of the plate body 1 shown in the figure is provided with a plurality of sealing ring grooves 6 for installing sealing strips from the inside to the outside around the transition long hole 2. Specifically, there can be two or three sealing ring grooves 6. The sealing ring grooves 6 can be set as corresponding square rings according to the shape of the surrounding transition long hole 2. The sealing effect can be improved by multi-layer sealing strips, and the sealing effect can be guaranteed for sand-shooting discs of different sizes at the same time; two first waist-shaped holes 4 along the width direction of the transition long hole 2 are symmetrically provided outside the two ends of the transition long hole 2, which is convenient for horizontally adjusting the installation position of the sand-shooting disc. Two second waist-shaped holes 3 along the length direction of the transition long hole 2 are symmetrically arranged on the outside of both sides of the transition long hole 2, which is convenient for longitudinally adjusting the installation position of the sand shooting disc. The first waist-shaped hole 4 and the second waist-shaped hole 3 are both located on the plate surface of the plate body 1 between the transition long hole 2 and the innermost sealing ring groove 6. Even if the sand shooting disc only squeezes the sealing strip of the innermost sealing ring groove 6 for sealing, it can ensure that the first waist-shaped hole 4 and the second waist-shaped hole 3 will not leak material outward. The first waist-shaped hole 4 and the second waist-shaped hole 3 are both correspondingly connected to the mounting holes on the corresponding edge of the sand shooting disc by penetrating the first bolt 7.

[0024] As needed, the hole ends of the first waist-shaped hole 4 and the second waist-shaped hole 3 corresponding to the upper plate surface of the plate body are provided with countersunk steps for hiding the bolt head of the first bolt 7, and the bottom ends of the two side walls of the bolt head of the first bolt 7 are horizontally extended outward with shovel edges 8. If sand falls into the countersunk steps, the shovel edges 8 of the bolt head of the first bolt 7 can be used to dig and shovel, which can facilitate the first bolt 7 to move and adjust its position along the first waist-shaped hole 4 or the second waist-shaped hole 3.

[0025] The connecting plate for quick replacement of sand shooting discs described in the utility model can be used to install the sealing ring groove 6 of the connecting plate downward at the corresponding position of the original sand shooting disc after the sand shooting disc of the original sand shooting machine is removed from the bottom surface of the sand bin, and is fastened and connected by the second bolt 9. New sand shooting discs of various models and specifications manufactured according to the needs of changing the position and size of the sand entry holes of the production mold can utilize the first waist-shaped hole 4 and the second waist-shaped hole 3, penetrate the first bolt 7, and fit the lower plate surface of the connecting plate for tight installation. When sand shooting, sand particles pass through the transition long hole 2 from the sand bin and are ejected through the sand shooting holes of the sand shooting disc.

[0026] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. A connection plate for quick change of sandblasting disc, characterized by: The invention comprises a plate body (1) arranged between the bottom surface of a sand bin and a sand shooting disk, wherein the outer edge of the upper plate surface of the plate body (1) is correspondingly sealed and detachably connected to the outer edge of the bottom surface of the sand bin, and a transition long hole (2) for sand material to pass through is provided in the center of the plate body (1); the lower plate surface of the plate body (1) is provided with a plurality of sealing ring grooves (6) for installing sealing strips from the inside to the outside around the transition long hole (2); two first waist-shaped holes (4) along the width direction of the transition long hole (2) are symmetrically provided at both ends of the transition long hole (2); two second waist-shaped holes (3) along the length direction of the transition long hole (2) are symmetrically provided at both sides of the transition long hole (2); the first waist-shaped hole (4) and the second waist-shaped hole (3) are both located on the plate surface of the plate body (1) between the transition long hole (2) and the innermost sealing ring groove (6), and the first waist-shaped hole (4) and the second waist-shaped hole (3) are correspondingly connected to the mounting holes on the corresponding edge of the sand shooting disk by passing through first bolts (7).

2. The connection plate for quick change of the sandblasting disc according to claim 1 is characterized in that: Two long holes (5) are symmetrically arranged on the two end surfaces of the plate body (1) along the length direction of the transition long hole (2); the long holes (5) are correspondingly connected to the mounting holes at the corresponding outer edges of the bottom surface of the sand bin by passing through second bolts (9).

3. The connection plate for quick change of the sandblasting disc according to claim 2 is characterized in that: The outer end hole wall of the elongated hole (5) is connected to the corresponding end surface of the plate body (1) to form a notch.

4. The connection plate for quick change of the sandblasting disc according to claim 1 is characterized by: The plate body (1) and the outer edge gap of the bottom surface of the sand bin are sealed and fixed by gluing.

5. The connection plate for quick change of the sandblasting disc according to claim 1 is characterized by: The sealing ring grooves (6) are provided with two or three.

6. The connection plate for quick change of the sandblasting disc according to claim 1 is characterized by: The transition long hole (2) is arranged along the length direction of the plate body (1), and the sealing ring groove (6) is configured as a square ring.

7. The connection plate for quick change of the sandblasting disc according to claim 1 is characterized by: The hole ends of the first waist-shaped hole (4) and the second waist-shaped hole (3) corresponding to the upper plate surface of the plate body are both provided with a countersunk step for hiding the bolt head of the first bolt (7).

8. The connection plate for quick change of the sandblasting disc according to claim 7 is characterized by: The bottom ends of both side walls of the bolt head of the first bolt (7) are horizontally extended outwards with shovel edges (8).

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