Hot melt adhesive core assembly tool

Abstract

The utility model relates to a hot melt adhesive core assembly tool which comprises a tool frame, a fixed clamp and a movable clamp, the fixed clamp and the movable clamp are arranged on the tool frame, a sliding rail for the movable clamp to move is arranged on the tool frame, the movable clamp is arranged on the sliding rail, and a front limiting block and a rear limiting block are arranged at the front end and the rear end of the sliding rail respectively. The front limiting block and the rear limiting block limit the moving range of the movable clamp, sand core positioning grooves are formed in the fixed clamp and the movable clamp respectively, and sand cores needing to be bonded are placed in the sand core positioning grooves of the fixed clamp and the movable clamp respectively. The sand core assembling tool has the beneficial effects that by using the sand core assembling tool, the sand core assembling speed is high, the core assembling size is accurate, the sand core can be transferred to the next working procedure after core assembling, the production efficiency is improved, the overall circulation time is shortened, and the core assembling is prevented from becoming a bottleneck working procedure. Meanwhile, a large number of combined molds and clamps are saved, the manufacturing cost and occupied space of the molds and the clamps are reduced, and maintenance procedures are reduced.

Description

Technical Field

[0001] This utility model relates to a hot melt adhesive core assembly tooling, belonging to the field of mold tooling technology. Background Technology

[0002] Sand casting is a molding method that uses molding sand and core sand as molding materials. Molten metal is poured into a mold, and after cooling, solidification, and finishing, a predetermined shape, size, and properties are obtained. With the development of technology, sand casting is also developing towards precision, greenness, and automation. As castings become more precise and casting production becomes more automated, the sand cores used in sand casting are becoming increasingly complex. As a result, most castings cannot be formed using a single sand core; different sand cores need to be bonded together, dried, and cooled before being supplied to the molding department.

[0003] The assembly of casting sand cores is mostly done manually. Adhesive is applied to the areas to be bonded. Since the adhesive requires a considerable amount of time to establish its bonding effect, simple assembly fixtures and positioning devices are often used to fix the sand cores. Currently, common technologies include fixture clamping, mechanical clamping, and cylinder clamping to prevent relative movement of the assembled sand cores before the adhesive takes effect, which could cause dimensional changes. Existing technologies require a large number of clamping fixtures and jigs to ensure sufficient time for the assembled sand cores to bond. Due to the diversity of casting products and the significant differences in the shape and size of sand cores between different castings, it is impossible to standardize the fixtures and jigs. Therefore, a large quantity and variety of fixtures are needed, resulting in high costs and large footprints. Over long-term use, wear and deformation of the fixtures are inevitable, requiring regular maintenance to prevent inaccurate sand core positioning and dimensional deviations in the castings. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a hot melt adhesive core assembly tooling, and with the hot melt adhesive core assembly technology, the hot melt adhesive cures quickly, so that the sand core assembly has adhesiveness immediately after completion, without the need for complicated equipment and many clamping jigs.

[0005] This utility model is achieved through the following technical solution: a hot melt adhesive core assembly fixture, including a fixture frame, a fixed fixture and a movable fixture. The fixed fixture and the movable fixture are set on the fixture frame. The fixture frame is provided with a slide rail for the movable fixture to move. The movable fixture is set on the slide rail. The front and rear ends of the slide rail are respectively provided with a front limit block and a rear limit block. The front limit block and the rear limit block limit the range of motion of the movable fixture. The fixed fixture and the movable fixture are respectively provided with sand core positioning grooves. The sand cores to be bonded are respectively placed in the sand core positioning grooves of the fixed fixture and the movable fixture.

[0006] The movable fixture is equipped with a motion base and a handle. The motion base is mounted on a slide rail, and pushing the handle can move the movable fixture back and forth on the slide rail.

[0007] The movable clamp holds a #1 sand core, and the fixed clamp holds a #2 sand core. The #1 sand core has a groove that engages with the #2 sand core, and the #2 sand core has a protrusion that engages with the #1 sand core. The protrusion has a hot melt adhesive application position and an ASK core adhesive application position.

[0008] The tooling frame is made of 45# steel, and the front limit block, rear limit block and motion base are made of 20Mn2 wear-resistant steel.

[0009] The beneficial effects of this utility model are: using this core assembly tooling, the sand core assembly speed is fast, the core assembly size is accurate, and the core can be immediately transferred to the next process after assembly, which improves production efficiency, shortens the overall cycle time, and avoids core assembly becoming a bottleneck process. At the same time, it saves a lot of assembly jigs and fixtures, reduces the manufacturing cost of jigs and fixtures, reduces the space occupied, and reduces maintenance procedures. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a reference diagram showing the usage state of this utility model.

[0013] Figure 3 This is a perspective view of the utility model in use.

[0014] In the diagram: 1. Tooling frame; 2. Fixed clamp; 3. Movable clamp; 4. Slide rail; 5. Front limit block; 6. Rear limit block; 7. Motion base; 8. Handle; 9. #1 sand core; 10. #2 sand core; 11. Protruding column; 12. Hot melt adhesive application position; 13. ASK core adhesive application position. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0017] like Figure 1 and Figure 2 The hot melt adhesive core assembly fixture shown includes a fixture frame 1, a fixed clamp 2, and a movable clamp 3. The fixed clamp 2 and the movable clamp 3 are mounted on the fixture frame 1. The fixture frame 1 is provided with a slide rail 4 for the movable clamp 3 to move. The movable clamp 3 is mounted on the slide rail 4. The front and rear ends of the slide rail 4 are respectively provided with a front limit block 5 and a rear limit block 6, which limit the range of motion of the movable clamp 3. The fixed clamp 2 and the movable clamp 3 are respectively provided with sand core positioning grooves. The sand cores to be bonded are placed into the sand core positioning grooves of the fixed clamp 2 and the movable clamp 3, respectively.

[0018] The movable clamp 3 is equipped with a motion base 7 and a handle 8. The motion base 7 is mounted on the slide rail 4. Pushing the handle 8 can move the movable clamp 3 back and forth on the slide rail 4.

[0019] The movable clamp 3 holds a #1 sand core 9, and the fixed clamp 2 holds a #2 sand core 10. The #1 sand core 9 has a groove that engages with the #2 sand core 10, and the #2 sand core 10 has a protrusion 11 that engages with the #1 sand core 9. The protrusion 11 has a hot melt adhesive application position 12 and an ASK core adhesive application position 13.

[0020] The tooling frame 1 is made of 45# steel, and the front limit block 5, the rear limit block 6 and the motion base 7 are made of 20Mn2 wear-resistant steel.

[0021] The operation process of this utility model:

[0022] First, place sand core #1 9 on the movable clamp 3, and place sand core #2 10 on the fixed clamp 2;

[0023] Prepare the hot melt glue gun and ASK adhesive in advance. Preheat the hot melt glue gun to the operating temperature.

[0024] Apply ASK adhesive evenly to the designated ASK adhesive application point 13 shown in the diagram.

[0025] Apply hot melt adhesive evenly to the hot melt adhesive application point 12 shown in the diagram;

[0026] After applying the adhesive, push handle 8 quickly within 2-3 seconds to combine sand core #1 9 and sand core #2 10 together.

[0027] After waiting 2-3 seconds for the hot melt adhesive to take effect, remove the assembled sand core and move it to the next process.

[0028] Start the next round of core assembly cycle.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hot melt adhesive core assembly tooling, characterized in that: The fixture includes a tooling frame (1), a fixed clamp (2), and a movable clamp (3). The fixed clamp (2) and the movable clamp (3) are mounted on the tooling frame (1). The tooling frame (1) is provided with a slide rail (4) for the movable clamp (3) to move. The movable clamp (3) is mounted on the slide rail (4). The front and rear ends of the slide rail (4) are respectively provided with a front limit block (5) and a rear limit block (6). The front limit block (5) and the rear limit block (6) limit the range of motion of the movable clamp (3). The fixed clamp (2) and the movable clamp (3) are respectively provided with sand core positioning grooves. The sand cores to be bonded are placed in the sand core positioning grooves of the fixed clamp (2) and the movable clamp (3).

2. The hot melt adhesive core assembly tooling according to claim 1, characterized in that: The movable clamp (3) is provided with a moving base (7) and a handle (8). The moving base (7) is set on the slide rail (4). Pushing the handle (8) can move the movable clamp (3) back and forth on the slide rail (4).

3. The hot melt adhesive core assembly tooling according to claim 1, characterized in that: The movable clamp (3) is used to place the No. 1 sand core (9), and the fixed clamp (2) is used to place the No. 2 sand core (10). The No. 1 sand core (9) is provided with a groove that connects with the No. 2 sand core (10). The No. 2 sand core (10) is provided with a protrusion (11) that connects with the No. 1 sand core (9). The protrusion (11) is provided with a hot melt adhesive application position (12) and an ASK core adhesive application position (13).

4. The hot melt adhesive core assembly tooling according to claim 1, characterized in that: The tooling frame (1) is made of 45# steel, and the front limit block (5), the rear limit block (6) and the motion base (7) are made of 20Mn2 wear-resistant steel.

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