Molding bottom plate for resin sand molding production line

Abstract

The utility model relates to the technical field of casting tools, in particular to a molding bottom plate for a resin sand molding production line, which is characterized by comprising a bottom plate body and a plurality of fastening components, a plurality of mounting areas are uniformly distributed on the peripheral side of the bottom plate body, and the mounting areas are arranged on the bottom plate body. The multiple fastening assemblies are correspondingly distributed in different mounting areas so as to uniformly reinforce the peripheral side of the mold; at least two mounting stations are arranged in the mounting area, the fastening assembly located in the mounting area is detachably arranged at any mounting station so as to adjust the clamping position of the mold, the requirement for small-batch automatic production of resin sand single pieces can be met, the molds of different sizes can be clamped and fixed, the production efficiency is improved, and the production cost is reduced. And the general matching performance is outstanding.

Description

Technical Field

[0001] The utility model relates to the technical field of casting tooling, in particular to a molding base plate for a resin sand molding production line. Background Art

[0002] Resin sand casting is a common casting process, mainly used to produce metal castings with complex shapes and precise dimensions. It mainly uses resin as a binder. The basic process includes mold preparation, resin sand filling, resin curing, mold drying, metal pouring, cooling and curing, and demolding and cleaning. It has the advantages of strong adaptability, high precision, production efficiency and relatively low cost. It is widely used in industries such as automobile manufacturing, aerospace, engineering machinery and energy equipment. It can meet the modern industry's production needs for high-quality and high-precision castings, and there is still a lot of room for development in the future.

[0003] With the development of technology, the resin sand casting process is usually combined with an automated production line to realize the transportation and processing of each process. The production line mainly uses a special molding base plate and a special molding mold, a special sand box and an automatic roller to perform an automated molding process. The size of the molding base plate is consistent with the size of the molding mold, which plays the role of supporting the mold and fixing the mold.

[0004] However, since resin sand casting production is mostly single-piece small-batch casting products, and the process requires the design and use of molds and sand boxes of different sizes, conventional molding production lines are only suitable for the use of single castings and single molds. Therefore, the molding base plate used in traditional resin sand molding production lines is difficult to adapt to the needs of the production line, and the molding base plate has the problem of poor versatility. For this reason, the existing technology still lacks a molding base plate for an automated resin sand molding production line to meet the needs of single-piece small-batch automated production of resin sand. Therefore, the existing technology needs to be improved. Utility Model Content

[0005] The utility model provides a molding base plate for a resin sand molding production line, which solves the problem of poor compatibility of conventional molding base plates.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A molding base plate for a resin sand molding production line includes a base plate body and: a plurality of fastening components. A plurality of installation areas are evenly arranged on the circumference of the base plate body, and the plurality of fastening components are correspondingly distributed in different installation areas to be used for uniformly reinforcing the circumference of the mold; the interior of the installation area has at least two installation stations, and the fastening components located in the installation area can be detachably set at any of the installation stations to adjust the clamping position of the mold.

[0008] Preferably, the number of the installation areas is four groups, and they are distributed at the four corners of the base plate body.

[0009] Preferably, there are four installation stations located in the same installation area, and the four installation stations are arranged in a rectangular shape.

[0010] Preferably, the fastening assembly includes a pressure block having a through hole; a screw member, a process hole is provided through the installation station, and the screw member passes through the through hole and the process hole in sequence; a pad, which is provided on the base plate body and abuts against the end of the pressure block away from the mold to support the pressure block; and a nut, which is located below the base plate body and is threadedly connected to the screw member, and cooperates with the screw member to press the pressure block down the mold.

[0011] Preferably, the via hole is a strip-shaped through-hole structure and is extended along the length direction of the pressing block.

[0012] Preferably, the base plate body includes an upper flat plate; and a support plate fixedly arranged on the bottom of the upper flat plate.

[0013] Preferably, the support plate includes a first slat, which has multiple parallel strips and is evenly arranged along the first direction of the base plate body; and a second slat, which has multiple parallel strips and is evenly arranged along the second direction of the base plate body, and is staggered with the first slats to form a criss-cross grid structure.

[0014] Preferably, the bottom of the upper flat plate is provided with reinforcing ribs, which extend from the edge of the upper flat plate toward the middle and intersect with the support plate.

[0015] Preferably, the parallelism of the relative planes at the front and rear ends of the upper plate along the running axis is ≤0.2 mm; and / or the parallelism of the relative planes on both sides of the support plate parallel to the running axis is ≤0.2 mm.

[0016] Preferably, the base plate body is made of ductile iron.

[0017] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0018] 1. By providing multiple fastening process holes at the four corners of the molding base body and installing fastening components corresponding to the multiple fastening process holes, this structure allows the position and height of the fastening components to be adjusted according to the size of the mold. This makes it suitable for molding molds of different sizes on the molding production line, and mold replacement is quick and convenient. The molding base has outstanding compatibility, solving the problem of insufficient compatibility of conventional molding bases.

[0019] 2. By setting support plates and reinforcing ribs, the overall strength of the molding base plate can be improved, the structure is not easy to deform, the service life is long, and the automated operation of the molding production line can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a structural schematic diagram of a molding base plate for a resin sand molding production line provided by a preferred embodiment of the present invention;

[0022] Figure 2 This is a structural diagram of the back side of the base plate body provided by a preferred embodiment of the present invention;

[0023] Figure 3 This is a structural diagram of the front side of the base plate body provided by a preferred embodiment of the present invention;

[0024] Figure 4 It is a structural schematic diagram of a fastening assembly provided by a preferred embodiment of the present utility model.

[0025] Reference numerals:

[0026] 1. Bottom plate body; 11. Upper plate; 12. Support plate; 121. First slat; 122. Second slat; 13. Reinforcement rib; 2. Fastening assembly; 21. Pressure block; 211. Through hole; 22. Screw member; 23. Spacer; 24. Nut; 3. Installation area; 31. Installation station. DETAILED DESCRIPTION

[0027] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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 work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component. When a component is considered to be "disposed on" another component, it may be directly disposed on the other component or there may be a centrally located component.

[0029] The following is combined with Figure 1-4 The technical solution of the utility model is further illustrated through specific implementation methods.

[0030] Reference Figure 1 This embodiment provides a molding base plate for a resin sand molding production line, which primarily comprises a base plate body 1 and a fastening assembly 2. The base plate body 1 serves as a support and is typically installed on an automated assembly line, moving with the line and providing a place for molds to be placed, thus providing a transfer effect. Meanwhile, the fastening assembly 2 is mounted on the base plate body 1 and primarily serves to press down the edges of the molds, thereby providing a reinforcement effect and preventing them from shifting or even falling during operation on the automated assembly line, thereby ensuring production safety.

[0031] For the sake of convenience of description, the path along which the base plate body 1 moves following the automated assembly line is defined as the operating axis, which is generally straight under normal conditions. Furthermore, in this embodiment, the overall formation of the base plate body 1 adopts a rectangular outline setting, which is a common outline structure of the base plate body 1. Depending on different production requirements, the base plate body 1 can also be replaced with a circular or other irregular shape, which is not specifically limited here.

[0032] Reference Figure 2 In actual use, due to the heavy weight of the casting mold, the base plate body 1 itself needs to have sufficient structural strength to meet the requirements of use. Specifically, the base plate body 1 includes an upper plate 11 and a support plate 12. The upper plate 11 and the support plate 12 are both placed horizontally during use. At this time, the support plate 12 is located at the bottom of the upper plate 11 and is fixedly connected to the support plate 12. The upper plate 11 has a flat surface that can be directly placed on the mold. The support plate 12 mainly serves to provide stable support for the upper plate 11.

[0033] Furthermore, in this embodiment, the support plate 12 is a grid-like support structure, wherein the support plate 12 includes a first slat 121 and a second slat 122. The first slat 121 and the second slat 122 are both provided in multiple numbers. To ensure the overall stability of the base plate body 1, the first slat 121 and the second slat 122 can be constructed of angle steel. The first slat 121 and the second slat 122 are integrally connected to the upper plate 11 through an integral casting. Furthermore, during the specific configuration process, the first direction is first defined along the length direction of the base plate body 1, and the width direction is defined as the second direction.

[0034] On the one hand, multiple first slats 121 are horizontally arranged and parallel to each other, and the first slats 121 are evenly spaced along the first direction of the base plate body 1, and the first slats 121 can provide structural support in the second direction of the upper plate 11; on the other hand, multiple second slats 122 are also horizontally arranged and parallel to each other, and the second slats 122 are evenly spaced along the second direction of the base plate body 1, and the second slats 122 can provide structural support in the first direction of the upper plate 11; further, the first slats 121 and the second slats 122 are staggered as a whole, and at this time, a criss-cross grid support structure is formed at the bottom of the upper plate 11, so that the upper plate 11 is structurally reinforced in both the width and length directions, and the structural strength of the base plate body 1 is better guaranteed.

[0035] Referring to the figure, in order to enable the upper plate 11 to place a larger mold product, optionally, the edge of the upper plate 11 is extended compared to the support plate 12. Through this arrangement, the overall space utilization can be improved.

[0036] Furthermore, in order to meet the structural strength of the extension portion, a reinforcing rib 13 is further provided at the bottom of the upper plate 11. Specifically, in this embodiment, the reinforcing rib 13 is integrally connected to the upper plate 11 to ensure good structural strength.

[0037] In addition, the reinforcing rib 13 extends from the edge of the upper plate 11 toward the middle, and the inwardly extending end intersects with the support plate 12. This arrangement allows the reinforcing rib 13 to be force-coupled with the support plate 12, further improving the structural strength of the base plate body 1.

[0038] It should be noted that there are multiple reinforcing ribs 13, and the multiple reinforcing ribs 13 are arranged in sequence from one side to the other side of the upper plate 11 to achieve a multi-point support effect. The specific number of reinforcing ribs 13 can be adjusted according to specific needs and is not specifically limited here.

[0039] Furthermore, the material of the base plate body 1 is also a significant factor influencing its overall structural strength. In this embodiment, the base plate body 1 is made of ductile iron, with the grade QT500-7 being an option, and is manufactured through resin sand casting and machining. This designation ensures that this grade of ductile iron has evenly distributed graphite nodules, which helps reduce cutting forces and tool wear during machining, thereby improving machining efficiency and surface quality. Furthermore, this material is less likely to generate excessive heat during machining, further optimizing the process. Its excellent machining properties can significantly save machining time and tool costs.

[0040] It should be noted that in other embodiments, ordinary gray cast iron, malleable cast iron, carbon steel, cast aluminum alloy and other materials may also be used instead. Any material that can meet the processing requirements may be tried and no specific restrictions are made here.

[0041] Furthermore, when the base plate body 1 moves along the operating axis, if the edge parallelism of the base plate body 1 cannot meet the requirements, it will cause structural deviation, which may cause the base plate bodies 1 of different production lines to be accidentally touched.

[0042] Based on this, on the one hand, the parallelism of the relative planes at the front and rear ends of the upper plate 11 along the operating axis is controlled within a range of ≤0.2mm, and specifically the error can be controlled within specific numerical ranges such as 0.2mm, 0.15mm, and 0.1mm. In the assembly line, there are usually multiple bottom plate bodies 1, and the upper plates 11 are arranged end to end. Through the above arrangement, the parallelism of the two opposite sides of the upper plate 11 in the forward and backward directions of the operating axis can be constrained to avoid offset of different upper plates 11 when they are close to each other, thereby enabling multiple bottom plate bodies 1 to be arranged tightly and accurately on the assembly line, and the positional accuracy of the bottom plate bodies 1 when placed is guaranteed to a certain extent.

[0043] Furthermore, in a second aspect, the parallelism of the two opposing planes of the support plate 12 parallel to the axis of operation can optionally be controlled within a range of ≤0.2mm. Specifically, the error can be controlled within specific numerical ranges such as 0.2mm, 0.15mm, and 0.1mm. Through the above arrangement, the parallelism of the opposing sides of the support plate 12 can be constrained to prevent accidental contact between the support plate 12 and the rails on both sides. This constraint can be used in combination with the constraint scheme of the upper plate 11, or the constraint scheme of the upper plate 11 or the constraint scheme of the support plate 12 can be used alone. The specific choice should be adjusted accordingly based on specific production requirements.

[0044] After the bottom plate body 1 is set, the mold is placed on the top of the upper plate 11, and then the mold on the top of the upper plate 11 is pressed down and positioned by the fastening component 2 to ensure the stability of the mold during circulation.

[0045] Reference Figure 3 In order to achieve the downward pressing and fixing of molds of different sizes, first, multiple installation areas 3 are set on the peripheral side of the base plate body 1. It should be noted that the peripheral side of the base plate body 1 can be the area of the base plate body 1 close to the edge, or it can be the corner area of the base plate body 1, and the number of settings can be set according to design requirements. For example, two are set. When the number of these installation areas 3 is set to two, the two installation areas 3 can be set on the opposite sides of the upper plate 11 to achieve downward pressing and fixing of the opposite sides of the mold; if the number is set to three, three installation areas 3 can be evenly set on the surface of the upper plate 11 along the outline of an equilateral triangle; if the number of installation areas 3 is set to four, the installation areas 3 can be set at the position of the base plate body 1 close to the four peripheral edges, or the four installation areas 3 can be set at the position of the base plate body 1 close to the corners.

[0046] It should be noted that there is no restriction on the number and specific location of the installation areas 3. The purpose of the installation areas 3 is to provide for the assembly of the fastening components 2 so as to achieve uniform reinforcement force on the mold from all sides. In this embodiment, the number of installation areas 3 is set to four groups, and the four groups of installation areas 3 are distributed at the four corners of the base plate body 1.

[0047] Specifically, in order to achieve the downward pressure reinforcement effect on the mold, the number of fastening components 2 is also set to multiple, and multiple fastening groups are distributed in different installation areas 3; in this embodiment, the number of fastening components 2 is four, and they are distributed one-to-one to the four installation areas 3.

[0048] Reference Figure 4 The fastening assembly 2 includes a pressure block 21, a screw member 22, a spacer 23 and a nut 24. The pressure block 21 is a long block structure. A through hole 211 is provided near the middle of the pressure block 21, which passes through both sides for the screw member 22 to pass through. The screw member 22 includes a screw body, one end of which is provided with an external thread, and the other end is provided with a hexagonal head. Furthermore, an installation station 31 is provided in the installation area 3. The installation station 31 is used for the disassembly and installation of the entire fastening assembly 2 for easy adjustment. In this embodiment, the installation station 31 is provided with a process hole passing through the opposite sides of the upper plate 11, which is used for the threaded end of the screw member 22 to pass through the upper plate 11 and extend to the bottom of the upper plate 11. In this state, the nut 24 can be threadedly connected to the external thread of the screw member 22.

[0049] After the above-mentioned structural setting, during the specific use, the screw member 22 is first passed through the pressure block 21 and the upper plate 11 through the through hole 211 and the process hole respectively; then the nut 24 is screwed into the screw member 22 on the back of the upper plate 11, and the position of the pressure block 21 is adjusted so that one end of the pressure block 21 overlaps the mold, and then the support pad 23 is placed on the upper plate 11, and the pad 23 is located below the other end of the pressure block 21. At this time, by continuously tightening the nut 24, the screw member 22 drives the pressure block 21 to be pressed down, and the support pad 23 acts as a fulcrum to realize the pressing of the mold. The entire pressing process is easy to operate and can be conveniently disassembled and assembled, and the pressing strength is high.

[0050] Furthermore, in order to improve the ease of use of the fastening component 2, the through hole 211 is a strip-shaped through hole structure and is extended along the length direction of the pressing block 21. At this time, the screw member 22 can slide back and forth in the through hole 211 to adjust its assembly position and achieve a fine-tuning effect. It can adapt to the downward pressing and fixing requirements of molds with various different pressing points, and the structure is more flexible and universal.

[0051] Furthermore, in the specific use process, because different molds have different sizes, if the fastening assembly 2 is only fixed at the same point, it will be impossible to clamp molds with more contour sizes, and there is a problem of insufficient compatibility. Based on this, multiple installation stations 31 can be set in the same installation area 3. It can also be understood that in this solution, multiple through holes 211 are set in the same installation area 3, such as three, four, and five, and the number is not specifically limited. When setting, different installation stations 31 are also required to be separated to form a distance difference to facilitate the adjustment of the installation position of the fastening assembly 2; in this embodiment, there are four installation stations 31 located in the same installation area 3, and the four installation stations 31 are arranged in a rectangular shape.

[0052] Under the above conditions, by assembling the fastening components 2 to different installation stations 31, the position adjustment of the fastening components 2 can be achieved, so that the distance between different fastening components 2 can be shortened and lengthened, and molds with different sand box sizes can be adjusted and fixed, and the universal performance during the clamping process is optimized and improved.

[0053] The implementation principle of the embodiment of this application is:

[0054] 1. First, place the molding die at the center of the four corners of the molding template, select a fastening process hole corresponding to the four corners, and press down and fasten the four ears of the molding die through the screw, nut 24, pressure block 21 and pad 23.

[0055] 2. Then place the sand box according to its positioning, and prepare the gate, riser, air vent rod and chiller for molding.

[0056] 3. Start the continuous resin sand mixer to add sand, manually assist in compaction, vibrate the shape, and scrape the surface of the sand mold flat.

[0057] 4. The molding base plate carrying the sand mold moves to the flip mold stripping machine, waits for the resin sand casting mold to solidify, and then enters the flip mold stripping machine for flipping and demolding.

[0058] 5. Manual shaping, automatic flow coating, ignition and drying.

[0059] 6. After manual shaping and core setting and automatic box closing, enter the pouring area and wait for pouring.

[0060] Based on the above steps, the utility model improves the structure of the molding base plate, has diversified functions, and adjusts the position and height of the fastening components according to the size of the mold. It has a simple structure and is easy to use and operate, meeting the production needs of the resin sand casting production line, giving full play to the maximum efficiency of the molding production line, and ensuring the automated operation and molding quality of the resin sand casting production line.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A molding base plate for a resin sand molding production line, comprising a base plate body (1), characterized in that: Also includes: There are multiple fastening components (2), and multiple installation areas (3) are evenly arranged on the circumference of the base plate body (1). The multiple fastening components (2) are correspondingly distributed in different installation areas (3) to uniformly reinforce the circumference of the mold; The interior of the installation area (3) is provided with at least two installation stations (31), and the fastening assembly (2) located in the installation area (3) can be detachably arranged at any of the installation stations (31) to adjust the clamping position of the mold.

2. The molding base plate for the resin sand molding production line according to claim 1, characterized in that: The number of the installation areas (3) is four, and they are distributed at the four corners of the base plate body (1).

3. The molding base plate for the resin sand molding production line according to claim 1 or 2, characterized in that: There are four installation stations (31) located in the same installation area (3), and the four installation stations (31) are arranged in a rectangular shape.

4. The molding base plate for the resin sand molding production line according to claim 1, characterized in that: The fastening assembly (2) comprises: A pressing block (21) having a through hole (211); A screw member (22), wherein a process hole is provided through the installation station (31), and the screw member (22) sequentially passes through the through hole (211) and the process hole; A cushion block (23) is provided on the bottom plate body (1) and abuts against an end of the pressing block (21) away from the mold to support the pressing block (21); and a nut (24) located below the base plate body (1) and threadedly connected to the screw member (22). The nut (24) cooperates with the screw member (22) to enable the pressing block (21) to press the mold downward.

5. The molding base plate for the resin sand molding production line according to claim 4, characterized in that: The through hole (211) is a strip-shaped through hole structure and is extended along the length direction of the pressing block (21).

6. The molding base plate for the resin sand molding production line according to claim 1, characterized in that: The base plate body (1) comprises: Upper plate (11); and a support plate (12) fixedly arranged on the bottom of the upper flat plate (11).

7. The molding base plate for the resin sand molding production line according to claim 6, characterized in that: The support plate (12) comprises: The first strips (121) have a plurality of parallel strips and are evenly arranged along a first direction of the bottom plate body (1); and a plurality of second slats (122) parallel to each other, evenly arranged along the second direction of the base plate body (1), and interlaced with the first slats (121) to form a crisscross grid structure.

8. The molding base plate for the resin sand molding production line according to claim 6, characterized in that: A reinforcing rib (13) is provided at the bottom of the upper flat plate (11), and the reinforcing rib (13) extends from the edge of the upper flat plate (11) toward the middle and intersects with the support plate (12).

9. The molding base plate for the resin sand molding production line according to claim 6, characterized in that: The parallelism of the relative planes of the front and rear ends of the upper plate (11) along the running axis is ≤0.2 mm; And / or the parallelism of the two relative planes of the support plate (12) parallel to the running axis is ≤0.2 mm.

10. The molding base plate for the resin sand molding production line according to claim 1, characterized in that: The base plate body (1) is made of ductile iron.

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