Bulk molding compound (BMC) plastic cutting machine

Abstract

The utility model relates to the field of cutting machines, in particular to a cutting machine for BMC (bulk molding compound) plastics, which comprises a cabinet and a worktable arranged on the cabinet, an air purification cover is arranged on the worktable, a feed port and a discharge port are respectively arranged on two sides of the air purification cover, a support frame is arranged at one end of the worktable close to the feed port, a cutter is connected onto the support frame, and the air purification cover is arranged at the other end of the worktable close to the discharge port. One end of the cutter is connected with a rotating seat, a cutting motor used for driving the cutter to conduct rotary cutting is arranged on the supporting frame, a weighing conveying line used for weighing the cut BMC plastic is arranged at the end, close to the feeding port, of the workbench, and a finished product conveying line is arranged at the end, close to the discharging port, of the workbench. According to the BMC plastic cutting device, BMC plastic penetrating through the through holes can be weighed in real time through the weighing conveying line, the cutting quality and consistency of the cutters are improved, residues attached to the weighing conveying line and the finished product conveying line can be effectively cleaned through the scraping assemblies, and the conveying stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of cutting machines, in particular to a cutting machine for BMC plastics. Background Art

[0002] BMC stands for Bulk Molding Compound (BMC). It is a semi-dry molding intermediate material used in the manufacture of glass fiber-reinforced thermoset products. BMC is a prepreg made from a mixture of glass fiber, fillers, resin, and other raw materials. It exhibits excellent mechanical, electrical, and chemical resistance properties and is used in a variety of applications, including but not limited to automotive, electrical and electronics, and transportation. However, after extrusion, existing BMC plastics require a cutter to cut the extruded BMC material into suitable shapes for subsequent packaging or use.

[0003] Existing BMC plastic cutting machines primarily use mechanical cutting to cut BMC extruded material into desired shapes. Their basic structure includes a feeding device, a cutting device, and a control system. The extruder, extruding from the discharge end, is cut by blades or dies on the cutting device. The feeding device delivers the cut BMC material to the cutting area, while the control system manages the entire cutting process, ensuring that the cut BMC material is discharged for subsequent molding processes.

[0004] However, although the existing BMC extrusion raw materials meet the cutting requirements of BMC extrusion raw materials by being cut by a cutting machine after extrusion, there are still some defects. The structural setting of the existing cutting machine is relatively simple, and its effect in measuring and detecting the length of the BMC extrusion raw materials is poor. It is also difficult to control the extrusion quality of the BMC extrusion raw materials during cutting, resulting in difficulty in ensuring cutting accuracy, thereby affecting the cutting quality and efficiency of the BMC raw materials. In addition, the cutting and conveying effect of the existing cutting machine is not good, resulting in a relatively slow cutting and conveying speed of the BMC extrusion raw materials, which cannot meet the needs of large-scale production, thereby affecting the cutting efficiency. Utility Model Content

[0005] The purpose of the present utility model is to solve the above defects and provide a cutting machine for BMC plastics to solve the technical problems of poor control effect on cutting quality of extruded raw materials in the above background technology and poor cutting effect of existing cutting machines, thereby affecting cutting quality and cutting efficiency.

[0006] The purpose of this utility model is achieved by the following methods:

[0007] The cutting machine for BMC plastic includes a cabinet and a workbench arranged on the cabinet, a clean air hood is arranged on the workbench, a feed port and a discharge port are respectively opened on both sides of the clean air hood, and a controller is arranged on the clean air hood, a support frame is arranged at one end of the workbench close to the feed port, a through hole is arranged on the support frame for extruding BMC plastic, and a cutter for cutting BMC plastic is connected to the support frame, one end of the cutter is connected to a rotating seat, and a cutting motor is arranged on the support frame for driving the rotating seat to drive the cutter to rotate and cut, and the output shaft of the cutting motor is connected to the cutter. The rotating seat is coaxially connected so that the cutting motor drives the cutter to rotate and cut along the through hole. A weighing conveyor line for weighing the cut BMC plastic is provided at one end of the workbench near the feed port, and one end of the weighing conveyor line extends to the through hole of the support frame. A finished product conveyor line for transmitting the cut BMC plastic is provided at one end of the workbench near the discharge port, and one end of the finished product conveyor line extends to the weighing conveyor line, and the other end of the finished product conveyor line extends to the discharge port. Both the weighing conveyor line and the finished product conveyor line are connected with a scraping assembly for cleaning material residue.

[0008] Further in the above description, a discharge and fixed module for extruding the BMC plastic is connected in the through hole, and the discharge and fixed module is distributed around and wrapped along the inner diameter of the through hole.

[0009] Further in the above description, the controller is electrically connected to a fixed-length measuring sensor for measuring the length of BMC plastic. A guide rod is connected to the support frame through a connecting plate. The guide rod extends from the feed port to the discharge port. The fixed-length measuring sensor is installed on the guide rod so that the fixed-length measuring sensor can be moved and adjusted along the axial direction of the guide rod.

[0010] Further in the above description, the weighing conveyor line includes a mounting seat, a weighing fixed plate and a weighing conveyor belt, the mounting seat is installed on the workbench, the weighing fixed plate is installed on the mounting seat through the weighing module, the weighing conveyor belt is installed on the weighing fixed plate, and the conveying direction of the weighing conveyor belt extends from the feed port to the discharge port, and the weighing conveyor belt is connected to a first drive motor for driving the weighing conveyor belt for rotational conveying through a transmission roller.

[0011] Further in the above description, the weighing module is electrically connected to the controller, so that the weighing module can weigh the material on the weighing conveyor belt.

[0012] Further in the above description, the finished product conveyor line includes a mounting bracket, a finished product conveyor belt and a second drive motor. The mounting bracket is installed on the workbench, the finished product conveyor belt is installed on the mounting bracket, and one end of the finished product conveyor belt is connected to the output end of the second drive motor through a drive roller, one end of the finished product conveyor belt extends toward the end of the weighing conveyor belt, and the other end of the finished product conveyor belt extends toward the discharge port.

[0013] Further in the above description, the scraper assembly includes a connecting seat and a scraper, the connecting seat is installed on the weighing conveyor line or the finished product conveyor line, the scraper is connected and installed to the connecting seat through a pressure plate, and the scraping end of the scraper is in low-pressure contact with the outer surface of the weighing conveyor line or the finished product conveyor line.

[0014] Further in the above description, a clean air port communicating with the interior is formed on the top of the clean air hood.

[0015] The beneficial effects of the present invention are as follows: the through-hole design on the support frame enables the discharge end of an external BMC extruder to be connected, so that the BMC plastic extruded by the extruder can pass through smoothly, and the cutting motor drives the rotary seat to drive the rotation of the cutter to cut the BMC plastic passing through the through-hole, thereby improving the stability and quality of the cutting; the weighing conveyor line provided can weigh the BMC plastic passing through the through-hole in real time, ensuring the stability and controllability of product quality; at the same time, further improve the quality and consistency of the cutting by the cutter, improve the quality of cutting production, and the finished product conveyor line is responsible for transmitting the cut and weighed BMC plastic to the discharge port, realizing the automatic output of the product, reducing the labor intensity of manual material collection and handling, and improving the cutting production efficiency; the scraper assembly provided on the weighing conveyor line and the finished product conveyor line can effectively clean the material residue attached to the weighing and finished product conveyor lines, ensuring the cleanliness and smooth operation of the conveyor lines, improving the reliability and stability of the transmission, and further improving the cutting production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of this embodiment;

[0017] Figure 2 Schematic diagram of the internal structure of this embodiment;

[0018] Figure 3 It is a partial structural diagram of this embodiment;

[0019] Figure 4 This is a schematic diagram of the installation and connection of the weighing conveyor line and the finished product conveyor line in this embodiment;

[0020] Figure 5 This is a structural diagram of the weighing conveyor line in this embodiment;

[0021] The reference numerals in the figure are: 1-cabinet, 2-workbench, 3-clean air hood, 4-feed port, 5-discharge port, 6-controller, 7-support frame, 8-through hole, 9-cutter, 10-rotating seat, 11-cutting motor, 12-weighing conveyor line, 121-mounting seat, 122-weighing fixed plate, 123-weighing conveyor belt, 124-weighing module, 125-first drive motor, 13-finished product conveyor line, 131-mounting bracket, 132-finished product conveyor belt, 133-second drive motor, 14-scraper assembly, 141-connecting seat, 142-scraper, 143-pressing plate, 15-fixed length measuring sensor, 16-guide rod, 17-clean air port. DETAILED DESCRIPTION

[0022] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.

[0023] In this embodiment, refer to Figure 1-Figure 5 The BMC plastic cutting machine specifically implemented herein includes a cabinet 1 and a workbench 2 mounted on the cabinet 1. The workbench 2 is provided with a clean air hood 3. A feed port 4 and a discharge port 5 are formed on either side of the clean air hood 3. A controller 6 is provided on the clean air hood 3. A clean air port 17 communicating with the interior is formed at the top of the clean air hood 3. Specifically, a material guide hood is provided on the discharge port 5, and a discharge detector is provided at one end of the workbench 2 near the discharge port 5.

[0024] The workbench 2 is provided with a support frame 7 at one end close to the feed port 4. The support frame 7 is provided with a through hole 8 for extruding BMC plastic, and a cutter 9 for cutting the BMC plastic is connected to the support frame 7. One end of the cutter 9 is connected to a rotating seat 10. A cutting motor 11 is provided on the support frame 7 for driving the rotating seat 10 to drive the cutter 9 to rotate and cut. The output shaft of the cutting motor 11 is coaxially connected to the rotating seat 10, so that the rotation of the cutting motor 11 drives the cutter 9 to rotate and cut along the through hole 8. A weighing conveyor line 12 for weighing the cut BMC plastic is provided at one end of the workbench 2 near the feed port 4, and one end of the weighing conveyor line 12 extends toward the through hole 8 of the support frame 7. A finished product conveyor line 13 for transmitting the cut BMC plastic is provided at one end of the workbench 2 near the discharge port 5, and one end of the finished product conveyor line 13 extends toward the weighing conveyor line 12, and the other end of the finished product conveyor line 13 extends toward the discharge port 5. Both the weighing conveyor line 12 and the finished product conveyor line 13 are connected with a scraping assembly 14 for cleaning material residue.

[0025] Reference Figure 4A discharge and fixed module for extruding BMC plastic is connected to through-hole 8 and surrounds and wraps around the inner diameter of through-hole 8. Specifically, two discharge and fixed modules are provided, and the two discharge and fixed modules are paired and combined to form an opening inside that matches through-hole 8. The provision of the discharge and fixed modules facilitates the cutting of the BMC raw material by the cutter 9, improving the quality and efficiency of the cutting process.

[0026] The controller 6 is electrically connected to a fixed-length measuring sensor 15 for measuring the length of BMC plastic. A guide rod 16 is connected to the support frame 7 through a connecting plate. The guide rod 16 extends from the feed port 4 to the discharge port 5. The fixed-length measuring sensor 15 is installed on the guide rod 16 so that the fixed-length measuring sensor 15 can be moved and adjusted along the axial direction of the guide rod 16.

[0027] Specifically, in this embodiment, two guide rods 16 are provided, and the two guide rods 16 extend along the conveying direction of the weighing conveyor line 12. The fixed-length measuring sensor 15 is connected to the guide rod 16 and is located above the weighing conveyor belt 123. It can be moved and adjusted along the axial direction of the guide rod 16, thereby facilitating the adjustment of the cutting length according to the length of the BMC extruded raw material, thereby facilitating the precise cutting of the cutter 9.

[0028] Reference Figure 4 and Figure 5 The weighing conveyor line 12 includes a mounting base 121, a weighing fixed plate 122, and a weighing conveyor belt 123. The mounting base 121 is mounted on the workbench 2. The weighing fixed plate 122 is mounted on the mounting base 121 via a weighing module 124. The weighing conveyor belt 123 is mounted on the weighing fixed plate 122, and the conveying direction of the weighing conveyor belt 123 extends from the feed port 4 to the discharge port 5. The weighing conveyor belt 123 is connected to a first drive motor 125 for rotating and conveying the weighing conveyor belt 123 via a transmission roller. The weighing module 124 is electrically connected to the controller 6, so that the weighing module 124 can weigh the material on the weighing conveyor belt 123.

[0029] Specifically, by setting up the weighing conveyor belt 123 and the connected weighing module 124, when the BMC extruded raw material passes through the through hole 8 and enters the weighing conveyor belt 123, the extruded BMC raw material can be weighed, thereby further improving the weight control of the BMC extruded raw material and improving the accuracy and consistency of the cutting of the BMC extruded raw material by the cutter 9.

[0030] Reference Figure 4The finished product conveyor line 13 includes a mounting bracket 131, a finished product conveyor belt 132 and a second drive motor 133. The mounting bracket 131 is installed on the workbench 2, and the finished product conveyor belt 132 is installed on the mounting bracket 131. One end of the finished product conveyor belt 132 is connected to the output end of the second drive motor 133 through a drive roller. One end of the finished product conveyor belt 132 extends toward the end of the weighing conveyor belt 123, and the other end of the finished product conveyor belt 132 extends toward the discharge port 5.

[0031] Specifically, the finished product conveyor belt 132 can convey the weighed and cut BMC extruded raw materials to the discharge port 5, so that the cut materials can be conveyed to the outside and enter the next process, further improving the automation of use.

[0032] Reference Figure 2 and Figure 5 The scraper assembly 14 includes a connecting seat 141 and a scraper 142. The connecting seat 141 is installed on the weighing conveyor line 12 or the finished product conveyor line 13. The scraper 142 is connected and installed with the connecting seat 141 through a pressure plate 143, and the scraping end of the scraper 142 is in low-pressure contact with the outer surface of the weighing conveyor line 12 or the finished product conveyor line 13.

[0033] Specifically, two groups of scraper assemblies 14 are provided, and the two groups of scraper assemblies 14 are respectively installed at one end of the weighing conveyor belt 123 and the finished product conveyor belt 132 close to the discharge port 5, so that when the weighing conveyor belt 123 and the finished product conveyor belt 132 are rotated and transported toward the discharge port 5, the scraper 142 provided is used to exert low pressure on the outer surface of the weighing conveyor belt 123 and the finished product conveyor belt 132, thereby removing residual material residue from the outer surface.

[0034] The specific operating principle of this embodiment is as follows: the through hole 8 is connected to the conductive extrusion pipe, and the extrusion pipe is connected to the external extruder through the feed port 4, so that under the spiral extrusion of the extruder, the BMC raw material is extruded and transported through the extrusion pipe through the through hole 8 to the weighing conveyor belt 123, and the fixed-length measuring sensor 15 is moved and adjusted along the axial direction of the guide rod 16 to set the corresponding extrusion length, and under the weighing module 124 weighing the weighing conveyor belt 123, the BMC extrusion raw material extruded onto the weighing conveyor belt 123 can be weighed, thereby further improving the quality control and length control of the BMC extrusion raw material and enhancing the cutting of the cutter 9. The cutting quality and consistency are improved, the cutting production quality is improved, and the rotation of the cutting motor 11 is used to make the rotating seat 10 drive the cutter 9 to cut the BMC extruded raw material, thereby forming BMC plastic, and under the transportation of the weighing conveyor belt 123, enter the finished product conveyor belt 132, and be guided to the discharge port 5 by the finished product conveyor belt 132. By connecting the scraper 142 to the weighing conveyor belt 123 and the finished product conveyor belt 132, the scraper 142 can be used to scrape out the extrusion residue on the outer surface of the rotating weighing conveyor belt 123 and the finished product conveyor belt 132, thereby ensuring the cleanliness and smooth operation of the conveyor line, improving the reliability and stability of the transmission, and further improving the cutting production efficiency.

[0035] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A cutting machine for BMC plastics, comprising a cabinet and a workbench mounted on the cabinet, wherein a clean air hood is mounted on the workbench, wherein a feed port and a discharge port are respectively provided on both sides of the clean air hood, and a controller is mounted on the clean air hood, and wherein the following features are provided: A support frame is provided at one end of the workbench near the feed inlet, the support frame is provided with a through hole for extruding BMC plastic, and a cutter for cutting the BMC plastic is connected to the support frame, one end of the cutter is connected to a rotating seat, and a cutting motor is provided on the support frame for driving the rotating seat to drive the cutter to rotate and cut, the output shaft of the cutting motor is coaxially connected to the rotating seat, so that the rotation drive of the cutting motor drives the cutter to rotate and cut along the through hole, and a weighing conveyor line for weighing the cut BMC plastic is provided at one end of the workbench near the feed inlet, one end of the weighing conveyor line extends toward the through hole of the support frame, and a finished product conveyor line for transmitting the cut BMC plastic is provided at one end of the workbench near the discharge port, one end of the finished product conveyor line extends toward the weighing conveyor line, and the other end of the finished product conveyor line extends toward the discharge port, and both the weighing conveyor line and the finished product conveyor line are connected with a scraping assembly for cleaning material residue.

2. The BMC plastic cutting machine according to claim 1, characterized in that: The through hole is connected with a discharge and fixed module for extruding BMC plastic, and the discharge and fixed module is distributed around and wrapped along the inner diameter of the through hole.

3. The BMC plastic cutting machine according to claim 1, characterized in that: The controller is electrically connected to a fixed-length measuring sensor for measuring the length of BMC plastic. A guide rod is connected to the support frame through a connecting plate. The guide rod extends from the feed port to the discharge port. The fixed-length measuring sensor is installed on the guide rod so that the fixed-length measuring sensor can be moved and adjusted along the axial direction of the guide rod.

4. The BMC plastic cutting machine according to claim 3, characterized in that: The weighing conveyor line includes a mounting seat, a weighing fixed plate and a weighing conveyor belt. The mounting seat is installed on the workbench, the weighing fixed plate is installed on the mounting seat through the weighing module, the weighing conveyor belt is installed on the weighing fixed plate, and the conveying direction of the weighing conveyor belt extends from the feed port to the discharge port. The weighing conveyor belt is connected to a first drive motor for driving the weighing conveyor belt to rotate and convey through a transmission roller.

5. The BMC plastic cutting machine according to claim 4, characterized in that: The weighing module is electrically connected to the controller so that the weighing module can weigh the materials on the weighing conveyor belt.

6. The BMC plastic cutting machine according to claim 4, characterized in that: The finished product conveyor line includes a mounting bracket, a finished product conveyor belt and a second drive motor. The mounting bracket is mounted on a workbench, and the finished product conveyor belt is mounted on the mounting bracket. One end of the finished product conveyor belt is connected to the output end of the second drive motor through a drive roller. One end of the finished product conveyor belt extends toward the end of the weighing conveyor belt, and the other end of the finished product conveyor belt extends toward the discharge port.

7. The BMC plastic cutting machine according to any one of claims 1 to 6, characterized in that: The scraper assembly includes a connecting seat and a scraper. The connecting seat is installed on the weighing conveyor line or the finished product conveyor line. The scraper is connected and installed with the connecting seat through a pressure plate, and the scraping end of the scraper is in low-pressure contact with the outer surface of the weighing conveyor line or the finished product conveyor line.

8. The BMC plastic cutting machine according to any one of claims 1 to 6, characterized in that: A clean air port communicating with the interior is formed on the top of the clean air hood.

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