Preparation device for producing BMC (bulk molding compound)

Abstract

The utility model relates to the technical field of bulk molding compounds, in particular to a preparation device for producing a BMC (bulk molding compound), which comprises a mounting rack and a polishing disc, a sliding chute is formed in the side wall of the top of the mounting rack, fixed seats are fixedly mounted on the side walls of the mounting rack on two sides of the sliding chute, a second screw is rotatably connected between the two fixed seats, and a first screw is rotatably connected between the second screw and the mounting rack. The side wall of the sliding block is fixedly connected with a moving seat in threaded connection with the second screw rod, the top of the moving seat is rotatably connected with a rotating rod, one side of the rotating rod is slidably connected with a sliding sleeve rod, the tail end of the sliding sleeve rod is fixedly connected with a motor box, and the side, close to the tool table, of the motor box is fixedly connected with a protection plate; a driving motor is arranged in the motor box, and an output shaft of the driving motor penetrates out of the motor box to be fixedly connected with a grinding disc. Slitting and polishing are carried out at the same time, the subsequent polishing time of slitting is saved, and the slitting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of bulk molding compound technology, and in particular to a preparation apparatus for producing BMC bulk molding compound. Background Technology

[0002] BMC bulk molding compound is an unsaturated polyester bulk molding compound. Its manufacturing process involves first mixing the resin, initiator, colorant, release agent, and some fillers evenly, and then adding them to a mixing extrusion device to extrude into strips, cut, and store.

[0003] The length requirements for BMC (bulk molding compound) vary depending on the specific application. Common slitting equipment involves directly cutting strips of BMC bulk molding compound using a cutting machine. During cutting, measuring devices such as tape measures or pre-made reference objects are used to measure the length. However, manual operation can easily lead to errors or mistakes when using reference objects. Furthermore, the cutting machine produces burrs at the cut edge when cutting BMC bulk molding compound, requiring subsequent secondary grinding, which reduces slitting efficiency. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a preparation apparatus for producing BMC bulk molding compound.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A preparation apparatus for producing BMC (bulk molding compound) includes a mounting frame and a grinding disc. A tooling table is provided on one side of the mounting frame. The top of the mounting frame has a hollow structure. A groove is formed on the top side wall of the mounting frame. Fixed seats are fixedly installed on the side walls of the mounting frame on both sides of the groove. A second screw is rotatably connected between the two fixed seats. A slider is slidably connected within the groove. A movable seat threaded to the second screw is fixedly connected to the side wall of the slider. The output shaft of a second motor is fixedly connected to the end of the second screw away from the tooling table. The second motor is fixedly installed on the side wall of the mounting frame. A rotating rod is rotatably connected to the top of the movable seat. A sliding sleeve is slidably connected to one side of the rotating rod. A motor housing is fixedly connected to the end of the sliding sleeve. A protective plate is fixedly connected to the side of the motor housing near the tooling table. A drive motor is built into the motor housing. The output shaft of the drive motor extends out of the motor housing and is fixedly connected to the grinding disc. A handle is fixedly connected to the side of the motor housing away from the protective plate. Several positioning holes are evenly formed on the rotating rod. A positioning pin is slidably connected to the side of the sliding sleeve near the movable seat.

[0007] Preferably, the tooling table has two parallel slide rails at the bottom, and a slide table is slidably connected to the top of the two slide rails. A cutting machine is fixedly installed on the top of the slide table, and the cutting blade of the cutting machine extends out of the top of the tooling table.

[0008] Preferably, a first motor is fixedly installed on one side of the bottom of the tooling table, and the output end of the first motor is fixedly connected to a first screw threaded to the bottom of the slide table.

[0009] Preferably, a fixed limiting block is fixedly installed on one side of the top of the tooling table, and two movable grooves are opened on the tooling table on one side of the fixed limiting block. A movable limiting block is slidably connected to the two movable grooves, and fastening bolts that are slidably connected to the two movable grooves are installed on both sides of the top of the movable limiting block.

[0010] Preferably, a first electric telescopic rod is fixedly installed horizontally on the top of the tooling table on the same side as the fixed limiting block, and two second electric telescopic rods are fixedly installed on the top of the tooling table on the side away from the fixed limiting block by a bracket.

[0011] Preferably, a collection hopper is fixedly installed below the top hollow of the mounting frame, and a collection box is provided below the collection hopper.

[0012] Preferably, the top of the mounting bracket above the second screw has a scale line, and several storage racks are fixedly installed on the side of the top of the mounting bracket away from the scale line.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a second motor and a second screw. The cutting blade of the cutting machine is perpendicular to the tooling table. The second motor and the second screw drive the moving seat to slide along the groove and determine the cutting length by combining the scale lines. After determining the cutting length, the second motor is stopped, fixing the position of the moving seat. This eliminates the need to measure the length individually in subsequent cutting operations, simplifying the measurement process and improving cutting efficiency. Furthermore, when the cutting length needs to be changed, the second motor is controlled to rotate again, making it more accurate and less prone to errors compared to manual measurement.

[0015] This invention utilizes a grinding disc as a limiter for the cutting length. While limiting the length, the grinding disc can also be used to grind the cut surface. During grinding, the hand grips the disc, allowing it to rotate around the top of the moving base for thorough grinding. A protective plate protects the hands. The rotation radius of the grinding disc can be adjusted by moving a sliding sleeve on the rotating rod. This allows for grinding even larger BMC (bulk molding compound) shapes. If needed, the sliding sleeve can be removed, detaching the grinding disc from the rotating rod, allowing for hand-grinding of any un-ground BMC shapes on the storage shelf. This simultaneous grinding and cutting saves subsequent grinding time and improves cutting efficiency.

[0016] This invention uses a movable limiting block and a fixed limiting block for positioning, preventing BMC clump molding compound from hitting or falling off. During normal operation, the movable limiting block can be locked in the movable groove with fastening bolts. When cutting larger BMC clump molding compounds, the movable limiting block can be moved away from the fixed limiting block along the movable groove, increasing the distance between the fixed and movable limiting blocks. This invention is suitable for cutting BMC clump molding compounds of various specifications. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a preparation device for producing BMC bulk molding compound according to the present invention.

[0018] Figure 2 This is a schematic diagram of the second screw structure of a preparation device for producing BMC bulk molding compound proposed in this utility model;

[0019] Figure 3 Exploded view of the rotating rod and sliding sleeve structure of a preparation device for producing BMC bulk molding compound proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the mounting frame structure of a preparation device for producing BMC bulk molding compound proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the tooling table structure of a preparation device for producing BMC bulk molding compound proposed in this utility model;

[0022] Figure 6 This invention provides a preparation apparatus for producing BMC bulk molding compound. Figure 5 Enlarged view of the structure of region A in the middle.

[0023] In the diagram: 1. Tooling table; 101. Movable groove; 2. Fixed limit block; 3. Movable limit block; 4. Fastening bolt; 5. First electric telescopic rod; 6. Second electric telescopic rod; 7. Slide rail; 701. Slide table; 8. Cutting machine; 9. First motor; 10. First screw; 11. Mounting bracket; 12. Collection hopper; 13. Collection box; 14. Slide groove; 15. Slider; 16. Fixed seat; 17. Second screw; 18. Second motor; 19. Moving seat; 20. Rotating rod; 21. Sliding sleeve rod; 22. Positioning hole; 23. Positioning pin; 24. Motor box; 25. Protective plate; 26. Grinding disc; 27. Handle; 28. Scale line; 29. ​​Storage rack. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-6 A preparation apparatus for producing BMC (bulk molding compound) includes a mounting frame 11 and a grinding disc 26. A tooling table 1 is provided on one side of the mounting frame 11. The top of the mounting frame 11 has a hollow structure. A groove 14 is formed on the top side wall of the mounting frame 11. Fixed seats 16 are fixedly mounted on the side walls of the mounting frame 11 on both sides of the groove 14. A second screw 17 is rotatably connected between the two fixed seats 16. A slider 15 is slidably connected within the groove 14. A movable seat 19 threaded to the second screw 17 is fixedly connected to the side wall of the slider 15. The end of the second screw 17 away from the tooling table 1 is fixedly connected to the output shaft of a second motor 18. The second motor 18 is fixedly installed on the side wall of the mounting bracket 11. A rotating rod 20 is rotatably connected to the top of the movable seat 19. A sliding sleeve rod 21 is slidably connected to one side of the rotating rod 20. A motor box 24 is fixedly connected to the end of the sliding sleeve rod 21. A protective plate 25 is fixedly connected to the side of the motor box 24 near the tooling table 1. The motor box 24 contains a drive motor. A grinding disc 26 is fixedly connected to the output shaft of the drive motor. A handle 27 is fixedly connected to the side of the motor box 24 away from the protective plate 25. Several positioning holes 22 are evenly opened on the rotating rod 20. A positioning pin 23 is slidably connected to the side of the sliding sleeve rod 21 near the movable seat 19. The cutting blade of the cutting machine 8 is perpendicular to the tooling table 1. The second motor 18 and the second screw 17 drive the moving seat 19 to slide along the slide groove 14 and the scale line 28 to determine the cutting length. After the cutting length is determined, the second motor 18 is stopped to fix the position of the moving seat 19. This eliminates the need to measure the length individually in subsequent cutting operations, simplifying the measurement process and improving cutting efficiency. When the cutting length needs to be changed, the second motor 18 is controlled to rotate again. Compared with manual measurement, this is more accurate and less prone to errors. The grinding disc 26 is used as a limit for the cutting length. While achieving length limitation, the grinding disc 26 can also be used to grind the cut surface. The grinding process is efficient. During grinding, the handle 27 can be held to rotate the grinding disc 26 around the top of the moving seat 19 to fully grind the cut surface. The protective plate 25 can protect the hands. The rotation radius of the grinding disc 26 can be adjusted by moving the sliding sleeve 21 on the rotating rod 20. It can also grind some large BMC clump molding compounds. If necessary, the sliding sleeve 21 can be removed directly, so that the grinding disc 26 can be separated from the rotating rod 20. Then, the grinding disc 26 can be held to grind the BMC clump molding compounds on the storage rack 29 that have not been properly ground. This allows grinding to be carried out at the same time as cutting, saving grinding time after cutting and improving cutting efficiency.

[0026] As a technical optimization of this utility model, two parallel slide rails 7 are arranged at the bottom of the tooling table 1, and a slide table 701 is slidably connected to the top of the two slide rails 7. A cutting machine 8 is fixedly installed at the top of the slide table 701, and the cutting blade of the cutting machine 8 extends through the top of the tooling table 1. The cutting machine 8 cuts the BMC bulk molding compound. The slide table 701 and the slide rails 7 can slide under the drive of the first motor 9, thereby pushing the cutting machine 8 to move and cut.

[0027] As a technical optimization of this utility model, a first motor 9 is fixedly installed on one side of the bottom of the tooling table 1, and the output end of the first motor 9 is fixedly connected to a first screw 10 that is threaded to the bottom of the slide table 701. The first screw 10 makes the cutting machine 8 move stably, making the cut surface of BMC bulk molding compound smoother and less prone to chipping.

[0028] As a technical optimization of this utility model, a fixed limiting block 2 is fixedly installed on one side of the top of the tooling table 1. Two movable grooves 101 are opened on the tooling table 1 on one side of the fixed limiting block 2. A movable limiting block 3 is slidably connected to the two movable grooves 101. Fastening bolts 4 are installed on both sides of the top of the movable limiting block 3, which are respectively slidably connected to the two movable grooves 101. The fixed limiting block 2 is used for positioning, so that the BMC bulk molding compound will not collide or fall off. During normal operation, the movable limiting block 3 can be locked in the movable groove 101 by the fastening bolts 4. When cutting larger BMC bulk molding compounds, the movable limiting block 3 can be moved away from the fixed limiting block 2 along the movable groove 101, so that the distance between the fixed limiting block 2 and the movable limiting block 3 increases. This is suitable for cutting BMC bulk molding compounds of various specifications.

[0029] As a technical optimization of this utility model, a horizontally arranged first electric telescopic rod 5 is fixedly installed on the top of the tooling table 1 on the same side as the fixed limiting block 2. Two second electric telescopic rods 6 are fixedly installed on the top of the tooling table 1 on the side away from the fixed limiting block 2 via a bracket. The first electric telescopic rod 5 and the two second electric telescopic rods 6 respectively restrict and fix the side and top of the BMC bulk molding compound. The bottom and the other side of the BMC bulk molding compound are respectively restricted by the top of the tooling table 1 and the movable limiting block 3, so that the BMC bulk molding compound will not shift during cutting, ensuring the cutting quality of the cut surface.

[0030] As a technical optimization of this utility model, a collection hopper 12 is fixedly installed below the hollowed-out part at the top of the mounting frame 11, and a collection box 13 is provided below the collection hopper 12. The collection hopper 12 can collect grinding debris, which falls into the collection box 13 for collection.

[0031] As a technical optimization of this utility model, a scale line 28 is provided at the top of the mounting bracket 11 above the second screw 17, and several storage racks 29 are fixedly installed on the side of the top of the mounting bracket 11 away from the scale line 28. The scale line 28 is used to check and confirm the position of the moving seat 19, that is, to confirm the distance between the side wall of the grinding disc 26 and the cutting machine 8, and thus determine the cutting length. The electrical equipment used in this utility model is all powered by wires and operated through a local control cabinet, and the working principle is all existing technology.

[0032] In use, the operator first determines the cutting length of the current batch of BMC bulk molding compound, then starts the second motor 18. The rotation of the second motor 18 drives the second screw 17 to rotate, causing the movable seat 19 and the slider 15 to slide along the slide groove 14. While the movable seat 19 is sliding, the operator observes its position on the scale line 28 until the movable seat 19 moves to the required cutting length scale line 28, at which point the second motor 18 is stopped. At this point, the cutting length is determined. The BMC bulk molding compound to be cut is placed between the fixed limit block 2 and the movable limit block 3, and the BMC bulk molding compound is pushed to slide along the tooling table 1 towards the mounting frame 11 until the end of the BMC bulk molding compound abuts against the side wall of the grinding disc 26. At this point, the operator controls the extension of the first electric telescopic rod 5 and the two second electric telescopic rods 6, so that the first electric telescopic rod 5 pushes the side wall of the BMC bulk molding compound abutting against the side wall of the movable limit block 3, while the two second electric telescopic rods 6 abut against the BMC bulk molding compound. The top of the BMC molding compound is secured, ensuring that both sides and the top of the BMC molding compound are effectively fixed. At this time, the cutting machine 8 is turned on, and the first motor 9 is started to drive the first screw 10 to rotate, causing the slide table 701 to slide along the slide rail 7 towards the BMC molding compound, thereby driving the cutting machine 8 to cut the BMC molding compound. The drive motor built into the motor box 24 is also started. Holding the handle 27 causes the grinding disc 26 to grind the side wall of the BMC molding compound. The grinding debris falls into the collection box 13 through the collection hopper 12. During grinding, the handle 27 can be pulled to make the grinding disc 26 reciprocate around the top of the moving seat 19, making the grinding more even. This cycle continues, and each time the cutting machine 8 cuts, the grinding disc 26 can grind the previous cut surface. After cutting, the first motor 9 is reversed to drive the cutting machine 8 to reset, and the first electric telescopic rod 5 and the two second electric telescopic rods 6 retract and reset. The cut BMC molding compound can be temporarily placed on the storage rack 29.

[0033] When cutting larger BMC clump molding compounds, first remove the fastening bolt 4, then push the movable limit block 3 along the movable groove 101 to a position that matches the larger BMC clump molding compound, and then tighten the fastening bolt 4 again to fix the movable limit block 3 in the movable groove 101. The above operation can be repeated for cutting. At this time, the positioning pin 23 can be slid out of the positioning hole 22 to unlock the sliding sleeve 21. Pull the sliding sleeve 21 along the rotating rod 20 until the position of the grinding disc 26 is close to the BMC clump molding compound and stop. Insert the positioning pin 23 into the positioning hole 22. At this time, the distance between the grinding disc 26 and the moving seat 19 is greater, which is more convenient for grinding larger BMC clump molding compounds. If an insufficiently ground BMC clump molding compound is found on the storage rack 29, the sliding sleeve 21 can also be slid out of the rotating rod 20. At this time, the grinding disc 26 can be held by the handle 27 and taken directly to the side of the storage rack 29 for use.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A preparation apparatus for producing BMC bulk molding compound, comprising a mounting frame (11) and a grinding disc (26), characterized in that: The mounting frame (11) has a tooling table (1) on one side. The top of the mounting frame (11) is a hollow structure. A sliding groove (14) is opened on the top side wall of the mounting frame (11). Fixed seats (16) are fixedly installed on the side walls of the mounting frame (11) on both sides of the sliding groove (14). A second screw (17) is rotatably connected between the two fixed seats (16). A slider (15) is slidably connected in the sliding groove (14). A movable seat (19) threaded to the second screw (17) is fixedly connected to the side wall of the slider (15). The output shaft of the second motor (18) is fixedly connected to the end of the second screw (17) away from the tooling table (1). The second motor (18) is fixedly installed on the side wall of the mounting frame (11). A rotating rod (20) is rotatably connected to the top of the movable seat (19). A sliding sleeve rod (21) is slidably connected to one side of the rotating rod (20). A motor box (24) is fixedly connected to the end of the sliding sleeve rod (21). A protective plate (25) is fixedly connected to the side of the motor box (24) close to the tooling table (1). A drive motor is built into the motor box (24). A grinding disc (26) is fixedly connected to the output shaft of the drive motor through the motor box (24). A handle (27) is fixedly connected to the side of the motor box (24) away from the protective plate (25). Several positioning holes (22) are evenly opened on the rotating rod (20). A positioning pin (23) is slidably connected to the side of the sliding sleeve rod (21) close to the movable seat (19).

2. The apparatus for preparing BMC bulk molding compound according to claim 1, characterized in that: The tooling table (1) has two parallel slide rails (7) at the bottom, and a slide table (701) is slidably connected to the top of the two slide rails (7). A cutting machine (8) is fixedly installed at the top of the slide table (701), and the cutting blade of the cutting machine (8) passes through the top of the tooling table (1).

3. The apparatus for preparing BMC bulk molding compound according to claim 2, characterized in that: The tooling table (1) is fixedly installed with a first motor (9) on one side of its bottom. The output end of the first motor (9) is fixedly connected with a first screw (10) that is threaded to the bottom of the slide table (701).

4. The apparatus for preparing BMC bulk molding compound according to claim 1, characterized in that: A fixed limiting block (2) is fixedly installed on one side of the top of the tooling table (1). Two movable slots (101) are opened on the tooling table (1) on one side of the fixed limiting block (2). A movable limiting block (3) is slidably connected on the two movable slots (101). Fastening bolts (4) that are slidably connected to the two movable slots (101) are installed on both sides of the top of the movable limiting block (3).

5. The apparatus for preparing BMC bulk molding compound according to claim 4, characterized in that: The first electric telescopic rod (5) is fixedly installed on the top of the tooling table (1) on the same side as the fixed limiting block (2). Two second electric telescopic rods (6) are fixedly installed on the top of the tooling table (1) on the side away from the fixed limiting block (2) by a bracket.

6. The apparatus for preparing BMC bulk molding compound according to claim 1, characterized in that: A collection hopper (12) is fixedly installed below the top hollow of the mounting frame (11), and a collection box (13) is provided below the collection hopper (12).

7. The apparatus for preparing BMC bulk molding compound according to claim 1, characterized in that: The top of the mounting bracket (11) above the second screw (17) has a scale line (28), and several storage racks (29) are fixedly installed on the side of the top of the mounting bracket (11) away from the scale line (28).

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