Casting sand core forming mold
By using the design of lower molds, upper molds, and molding support networks in the casting mold molding mold, it solves the problem of demolition difficulty and long time occupation caused by the high humidity of the sand core. Machining efficiency and avoiding sand core deformation and damage.
Patent Information
- Application Number
- CN202423144456.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-12-19
AI Technical Summary
When a large number of sand cores are produced, the newly formed sand core has a high humidity and is difficult to quickly release, resulting in a long molding time and reducing processing efficiency; at the same time, after the connected multiple molds are formed, it is difficult to separate the sand core, which is easy to cause deformation Or damaged.
The casting sand core molding mold design includes the lower mold, the upper mold, and the first molding support network, connects multiple molds through the threaded pole, and realizes the molding of the core sand under pressure under pressure. Speed, quickly separate the mold; after the molding, the sand core is directly moved from the molding support network to the drying equipment for drying.
It solves the problems of difficult demoulding and long mold occupation time caused by high sand core humidity, improves processing efficiency, and avoids sand core deformation and damage by quickly separating the mold and drying it in the support net.
Smart Images
Figure CN222385859U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of casting sand cores, in particular to a casting sand core forming die. Background Art
[0002] Sand core is a material used to make cores in casting production. It is generally made of molding materials such as casting sand, molding sand binder and additives mixed in a certain proportion. Most of the core is surrounded by high-temperature liquid metal in the mold, and the size of the supporting and positioning part is generally small. Therefore, in addition to the performance of general molding sand, the core sand is also required to have higher strength, air permeability, yield and collapsibility. Sand cores are widely used in automobiles, machinery, aviation, electrical appliances and other fields. In the production and processing of sand cores, it is necessary to go through the processing steps of batching, sand mixing, molding, drying, heat treatment and trimming. In the molding process of sand cores, a molding mold is required to ensure the accuracy of the sand core size, but it still has the following disadvantages in actual use:
[0003] The utility model with announcement number CN214601784U discloses a casting sand core forming device for a casting mold, wherein the top of the bottom plate is fixedly connected to a lower template, the top of the lower template is movably connected to a mold tire, the top of the bottom plate is fixedly connected to a vertical plate, a fixed pulley is rotatably connected between the two vertical plates, and plug blocks are slidably connected to the two sides of the lower template, a disc is fixedly connected to one side of the plug block, a spring sleeved on the outer surface of the plug block is arranged between the disc and the lower template, a movable plate is fixedly connected to one side of the movable plate, a handle is fixedly connected to one side of the movable plate, and a wire rope is fixedly connected to the other side of the movable plate. Although the device is convenient for molding sand cores of different sizes, when a large number of sand cores are produced, the sand core is usually at a high humidity when it is just molded. In order to avoid deformation of the sand core during demoulding, the sand core is usually maintained in the mold for a certain period of time when necessary, and then subsequent drying and other processing steps are carried out, which will cause the mold to be occupied for a long time and reduce the processing efficiency;
[0004] When a large number of sand cores are produced and processed, connectable molds are usually set up so that when the core sand is injected into the mold, the core sand can enter multiple molds under pressure to improve the processing efficiency. However, it will cause the multiple sand cores after molding to be connected together. Separating the sand cores before drying the sand cores is likely to cause deformation of the sand cores, and separating the multiple sand cores after drying the sand cores is likely to cause damage to the sand cores, which makes the operation difficult. Utility Model Content
[0005] The utility model aims to provide a casting sand core forming mold. Through a lower mold, an upper mold and a first forming support net, the utility model solves the problem that during the actual operation of the casting sand core forming mold, the humidity of the newly formed sand core is high, it is difficult to demold quickly, and the mold will be occupied for a certain period of time. When the sand cores of multiple connected molds are formed, it is difficult to separate the multiple connected sand cores.
[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:
[0007] The utility model discloses a casting sand core forming mold, comprising a lower mold, an upper mold and a first forming support net, wherein a first threaded hole is provided at one end of the lower mold, a first threaded rod is welded and fixed at the other end of the lower mold, a slide plate is slidably clamped at one end of one side of the lower mold, an upper mold is plugged into the upper side of the lower mold, a second threaded hole is provided at one end of the upper mold, a second threaded rod is welded and fixed at the other end of the upper mold, a first forming support net is plugged into the top of the lower mold, and a second forming support net is plugged into the bottom of the upper mold;
[0008] By screwing the first threaded rod to the first threaded hole and the second threaded rod to the second threaded hole, a plurality of different upper molds can be connected, and a plurality of different lower molds can be connected, so that the core sand can enter the plurality of molds under pressure, and the plurality of sand cores can be molded at the same time, thereby improving the processing efficiency. After the core sand is injected into the mold, the connection ports of the plurality of molds can be closed by pulling the slide plate, and the plurality of molds can be cut to quickly separate the molds. At the same time, the sand core can be limited by the mold to avoid deformation of the sand core. After the sand core is formed in the upper mold and the lower mold, the upper mold is opened and the first molding support net and the second molding support net with the sand core are taken out, and the first molding support net and the second molding support net with the sand core are directly moved to the drying equipment for drying. The first molding support net and the second molding support net with ventilation can make the sand core directly dry on the inner side thereof, and can support and protect the shape of the sand core, and will not cause long-term occupation of the upper mold and the lower mold, thereby improving the processing efficiency.
[0009] Furthermore, a first forming groove is provided at the center of the top of the lower mold, positioning holes are provided around the top of the lower mold, the first forming support net is attached to the inner wall of the first forming groove, and the first threaded rod of one lower mold is screwed and fixed to the inner side of the first threaded hole of another lower mold;
[0010] By screwing the first threaded rod to the first threaded hole, multiple different lower molds can be connected, and the operation is simple and convenient. The core sand can flow between the multiple molds through the first feeding port, so that the core sand can enter the multiple molds under pressure, and multiple sand cores can be molded at the same time, thereby improving the processing efficiency. The core sand can be injected into the upper mold and the lower mold through the first feeding port, and additional holes can be opened on the surface of the lower mold and the first molding support net to inject the core sand as needed.
[0011] Further, a slide groove is provided at one end of one side of the lower mold, the slide plate is slidably connected to one end of the slide groove, a handle is welded and fixed at one end of the slide plate, a second material passage is provided through one side of the slide plate, first material passages are provided through both ends of the lower mold, the first material passage is connected through the first molding groove, the slide groove is connected through the first material passage, and the second material passage is attached to one side of the first material passage;
[0012] After the core sand is injected, the handle is pulled to drive the slide to move, so that the second feeding port can be separated from the side of the first feeding port, the first feeding port is closed, and the two connected sand cores can be quickly separated. At the same time, the sand core can be limited by the mold to avoid deformation of the sand core, and the second feeding port can be separated from the chute, so that the residual core sand in the second feeding port can be cleaned.
[0013] Furthermore, a second forming groove is provided in the center of the bottom of the upper mold, positioning rods are welded and fixed around the bottom of the upper mold, the positioning rods are inserted into the positioning holes, and the second threaded rod of one upper mold is screwed and fixed to the inner side of the second threaded hole of the other upper mold;
[0014] By screwing the second threaded rod into the second threaded hole, a plurality of different upper molds can be connected, and the operation is simple and convenient. During the molding process, the positioning rod is inserted into the positioning hole, so that the upper mold and the lower mold can be quickly positioned, thereby improving the convenience of use.
[0015] Furthermore, the first support frame is clamped at both ends of the first forming support net, the second support frame is clamped at both ends of the second forming support net, a third material passage is penetrated through one side of the first support frame, and the third material passage is attached to the inner side of the first material passage;
[0016] After the sand core is formed in the upper mold and the lower mold, the upper mold is opened and the first molding support net and the second molding support net with the sand core are taken out, and the first molding support net and the second molding support net with the sand core are directly moved to the drying equipment for drying. The sand core can be dried and shaped directly inside the ventilated first molding support net and the second molding support net, and the shape of the sand core can be supported and protected, and the upper mold and the lower mold will not be occupied for a long time, thereby improving the processing efficiency.
[0017] The utility model has the following beneficial effects:
[0018] The utility model solves the problem that although the device is convenient for molding sand cores of different sizes, when a large number of sand cores are produced, the sand cores usually have high humidity when they are just molded. In order to avoid deformation of the sand cores when demolding, the sand cores are usually maintained in the mold for a certain period of time when necessary, and then subsequent processing steps such as drying are carried out, which will cause the mold to be occupied for a long time and reduce the processing efficiency. After the sand core is extruded and molded in the mold, the sand core is adhered to the first molding support net and the second molding support net. The first molding support net and the second molding support net with the sand core are directly moved to the drying equipment for drying, which will not cause long-term occupation of the upper mold and the lower mold, and the first molding support net and the second molding support net can support and protect the shape of the sand core.
[0019] The utility model solves the problem that, when a large number of sand cores are produced and processed, connectable molds are usually provided, so that when core sand is injected into the mold, the core sand can enter multiple molds under pressure, thereby improving processing efficiency, but multiple sand cores after molding are also connected together, and separation of the sand cores before drying the sand cores is likely to cause deformation of the sand cores, and separation of the multiple sand cores after drying the sand cores is likely to cause damage to the sand cores, which is difficult to operate. The first threaded rod is screwed to the first threaded hole, and the second threaded rod is screwed to the second threaded hole, so that multiple different upper molds are connected, and multiple different lower molds are connected. The core sand enters multiple molds through the first feeding port under pressure, and multiple sand cores are molded. After the core sand is injected into the mold, the connecting ports of the multiple molds are closed by pulling the slide plate, and the multiple molds are cut and separated. The operation is simple and convenient, and damage to the sand cores is avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural effect diagram of the utility model;
[0021] Figure 2 It is a schematic diagram of the structure of the utility model;
[0022] Figure 3 This is a structural diagram of the lower mold of the utility model;
[0023] Figure 4 It is a side view of the lower mold of the utility model;
[0024] Figure 5 This is a structural diagram of the upper mold of the utility model;
[0025] Figure 6 This is a structural diagram of the first forming support net and the second forming support net of the utility model.
[0026] Reference numerals:
[0027] 1. Lower mold; 101. First molding groove; 102. Positioning hole; 103. First threaded hole; 104. Slide plate; 105. First feeding port; 106. Slide groove; 107. Second feeding port; 108. First threaded rod; 109. Handle; 2. Upper mold; 201. Second molding groove; 202. Second threaded hole; 203. Second threaded rod; 204. Positioning rod; 3. First molding support net; 301. Second molding support net; 302. First support frame; 303. Second support frame; 304. Third feeding port. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0029] See also Figure 1-6 As shown, the utility model is a casting sand core forming mold, comprising a lower mold 1, an upper mold 2 and a first forming support net 3, a first threaded hole 103 is opened at one end of the lower mold 1, a first threaded rod 108 is welded and fixed at the other end of the lower mold 1, a slide plate 104 is slidably clamped at one end of one side of the lower mold 1, the upper mold 2 is plugged into the upper side of the lower mold 1, a second threaded hole 202 is opened at one end of the upper mold 2, a second threaded rod 203 is welded and fixed at the other end of the upper mold 2, the first forming support net 3 is plugged into the top of the lower mold 1, and the second forming support net 301 is plugged into the bottom of the upper mold 2;
[0030] Take the corresponding multiple lower molds 1 and upper molds 2 as needed, screw the first threaded rod 108 into the first threaded hole 103 to connect the multiple lower molds 1, screw the second threaded rod 203 into the second threaded hole 202 to connect the multiple upper molds 2, insert the first molding support net 3 into the lower mold 1, insert the second molding support net 301 into the upper mold 2, and make the upper mold 2 be inserted on the upper side of the lower mold 1, pressurize and position, inject core sand into the multiple molds through the first feeding port 105, pull the slide plate 104 to close the first feeding port 105 of the multiple molds, further divide the sand cores in the multiple molds, open the upper mold 2 and take out the first molding support net 3 and the second molding support net 301 with the sand core, directly move the first molding support net 3 and the second molding support net 301 with the sand core to the drying equipment for drying, and take out the new first molding support net 3 and the second molding support net 301 again to mold the sand core.
[0031] Among them Figure 1-4As shown, a first molding groove 101 is provided at the center of the top of the lower mold 1, positioning holes 102 are provided around the top of the lower mold 1, the first molding support net 3 is attached to the inner wall of the first molding groove 101, a first threaded rod 108 of one lower mold 1 is screwed and fixed to the inner side of the first threaded hole 103 of another lower mold 1, a slide groove 106 is provided at one end of one side of the lower mold 1, a slide plate 104 is slidably connected to one end of the slide groove 106, a handle 109 is welded and fixed at one end of the slide plate 104, a second feeding port 107 is penetrated through one side of the slide plate 104, first feeding ports 105 are penetrated through both ends of the lower mold 1, the first feeding port 105 is penetrated and connected with the first molding groove 101, the slide groove 106 is penetrated and connected with the first feeding port 105, and the second feeding port 107 is attached to one side of the first feeding port 105;
[0032] According to the needs of the processed sand core, multiple lower molds 1 are taken, and the first threaded rod 108 is screwed to the first threaded hole 103 to connect the multiple lower molds 1. After the core sand is injected, the handle 109 is pulled to drive the slide plate 104 to move along the slide groove 106, so that the second feeding port 107 is separated from the side of the first feeding port 105, and the first feeding port 105 is closed, so that the two connected sand cores are quickly separated, and the second feeding port 107 is separated from the slide groove 106, so as to facilitate the cleaning of the residual core sand in the second feeding port 107.
[0033] Among them Figure 1 , 2 As shown in FIG. 5 , a second forming groove 201 is provided at the center of the bottom of the upper mold 2, and positioning rods 204 are welded and fixed around the bottom of the upper mold 2. The positioning rods 204 are inserted into the positioning holes 102, and the second threaded rod 203 of one upper mold 2 is screwed and fixed to the inner side of the second threaded hole 202 of the other upper mold 2;
[0034] According to the needs of the sand core to be processed, multiple upper molds 2 are taken, and the second threaded rod 203 is screwed into the second threaded hole 202 to connect the multiple upper molds 2. During the molding process, the positioning rod 204 is inserted into the positioning hole 102 to quickly position and fit the upper mold 2 and the lower mold 1.
[0035] Among them Figure 1 , 4 As shown in FIG. 6 , the first support frame 302 is clamped at both ends of the first forming support net 3, and the second support frame 303 is clamped at both ends of the second forming support net 301. A third material passage 304 is formed through one side of the first support frame 302, and the third material passage 304 is attached to the inner side of the first material passage 105;
[0036] After the sand core is formed in the upper mold 2 and the lower mold 1, the upper mold 2 is opened and the first molding support net 3 and the second molding support net 301 with the sand core are taken out, and the first molding support net 3 and the second molding support net 301 with the sand core are directly moved to the drying equipment for drying, and the new first molding support net 3 and the second molding support net 301 are taken again to shape the sand core.
[0037] The specific working principle of the utility model is as follows: take the corresponding multiple lower molds 1 and upper molds 2 as needed, screw the first threaded rod 108 to the first threaded hole 103 to connect the multiple lower molds 1, screw the second threaded rod 203 to the second threaded hole 202 to connect the multiple upper molds 2, insert the first molding support net 3 of the corresponding size into the lower mold 1, and insert the positioning rod 204 into the positioning hole 102, quickly fit the upper mold 2 and the lower mold 1, and then pressurize and position, inject core sand into the multiple molds through the first feeding port 105, and after the core sand is injected, pull the handle 109 to drive the slide plate 104 to move along the slide groove 106 The second material passage 107 is moved to separate from the side of the first material passage 105, and the first material passage 105 is closed to quickly separate the two connected sand cores, and the second material passage 107 is separated from the chute 106, so as to facilitate the cleaning of the residual core sand in the second material passage 107, open the upper mold 2 and take out the first molding support net 3 and the second molding support net 301 with the sand cores, directly move the first molding support net 3 and the second molding support net 301 with the sand cores to the drying equipment for drying, take out the new first molding support net 3 and the second molding support net 301 again and place them in the lower mold 1 and the upper mold 2, and perform molding processing on another batch of sand cores.
[0038] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.
Claims
1. A casting sand core forming mold, comprising a lower mold (1), an upper mold (2) and a first forming support net (3), characterized in that: A first threaded hole (103) is formed at one end of the lower mold (1), a first threaded rod (108) is welded and fixed at the other end of the lower mold (1), a slide plate (104) is slidably clamped at one end of one side of the lower mold (1), an upper mold (2) is plugged into the upper side of the lower mold (1), a second threaded hole (202) is formed at one end of the upper mold (2), a second threaded rod (203) is welded and fixed at the other end of the upper mold (2), a first molding support net (3) is plugged into the top of the lower mold (1), and a second molding support net (301) is plugged into the bottom of the upper mold (2).
2. A casting sand core forming mold according to claim 1, characterized in that: A first molding groove (101) is provided in the center of the top of the lower mold (1), positioning holes (102) are provided around the top of the lower mold (1), the first molding support net (3) is attached to the inner wall of the first molding groove (101), and the first threaded rod (108) of one lower mold (1) is screwed and fixed to the inner side of the first threaded hole (103) of the other lower mold (1).
3. A casting sand core forming mold according to claim 2, characterized in that: A slide groove (106) is provided at one end of one side of the lower mold (1), the slide plate (104) is slidably engaged with one end of the slide groove (106), a handle (109) is welded and fixed at one end of the slide plate (104), a second material passage (107) is provided through one side of the slide plate (104), first material passages (105) are provided through both ends of the lower mold (1), the first material passage (105) is connected to the first molding groove (101), the slide groove (106) is connected to the first material passage (105), and the second material passage (107) is attached to one side of the first material passage (105).
4. A casting sand core forming mold according to claim 2, characterized in that: A second forming groove (201) is provided in the center of the bottom of the upper mold (2), and positioning rods (204) are welded and fixed around the bottom of the upper mold (2), and the positioning rods (204) are inserted into the positioning holes (102). The second threaded rod (203) of one upper mold (2) is screwed and fixed to the inner side of the second threaded hole (202) of the other upper mold (2).
5. The casting sand core forming mold according to claim 3, characterized in that: The first forming support net (3) has first support frames (302) clamped at both ends, the second forming support net (301) has second support frames (303) clamped at both ends, and a third material passage opening (304) is provided through one side of the first support frame (302), and the third material passage opening (304) is fitted to the inner side of the first material passage opening (105).