PA-gf slitting device

Abstract

The utility model provides a PA-GF cutting device, including voltage regulator, motor, blade, frame, fixed plate, feeding pipe, still have pushing mechanism, voltage regulator, motor, blade, fixed plate, feeding pipe, pushing mechanism and frame install together, pushing mechanism includes electric linear slide, push rod, the lower end fixed mounting of push rod is installed on the sliding block of electric linear slide, electric linear slide lower end fixed mounting is installed on the other side on frame upper end, the staff of this new type puts a plurality of PA-GF raw material bundles from right rear to left front in the feeding pipe, need not manual operation, after simple power switch control, electric linear slide can push a plurality of PA-GF raw material bundles to the blade position and carry out cutting work one by one through push rod, since having reed and magnet, when sliding block moves to left front in place, electric linear slide will lose power and not work, can play the protection effect to electric linear slide, this new type brings the convenience to staff, improves work efficiency correspondingly, has good application prospect.

Description

Technical Field

[0001] This utility model relates to the field of pelletizing equipment technology, and in particular to a PA-GF pelletizing device. Background Technology

[0002] PA-GF is a reinforced nylon material, where PA stands for nylon (polyamide) and GF stands for glass fiber. PA-GF is nylon reinforced with glass fiber to improve its strength, stiffness, and other properties. The addition of glass fiber reduces nylon shrinkage, improves the precision of finished products, and enhances the material's strength and heat resistance. This material is commonly used in engineering applications requiring high strength, high stiffness, and good heat resistance, such as automotive parts, electronic housings, and industrial structural components. PA-GF production involves first blending and hot-extruding various raw materials using an extruder. The resulting molten material is then water-cooled and wound by an electric winding mechanism. Subsequent pelletizing processes produce granular PA-GF raw material, which serves as the raw material for downstream production.

[0003] Existing PA-GF raw material pelletizing equipment generally includes a motor, blades, and a frame. The blades are mounted in front of the motor shaft, and the motor is mounted on the frame. Workers hold multiple bundles of PA-GF raw material in both hands and feed them one by one to the blades. The rotating blades then continuously cut the PA-GF raw material bundles into pellets. While existing PA-GF raw material pelletizing equipment meets production needs to a certain extent, it suffers from the following technical drawbacks due to its structural and functional limitations. Specifically, because workers manually feed the PA-GF raw material bundles to the blades, there is a risk of injury from the rotating blades. Furthermore, the continuous feeding of PA-GF raw material bundles to the blades is inconvenient for workers. Therefore, it is essential to provide a pelletizing device that offers convenience to workers and reduces the risk of injury. Utility Model Content

[0004] In order to overcome the shortcomings of existing PA-GF raw material pelletizing equipment due to structural limitations, as described in the background art, this utility model provides a PA-GF pelletizing device that, under the joint action of related mechanisms, allows workers to place multiple PA-GF raw material bundles into the feeding pipe without manual operation. With simple power switch control, multiple PA-GF raw material bundles can be pushed one by one to the blade position for pelletizing, thereby bringing convenience to workers and improving work efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: The PA-GF pelletizing device includes a voltage regulator, a motor, blades, a frame, a fixed plate, a feeding pipe, and a pushing mechanism. The fixed plate has openings in its middle and lower ends. The front end of the feeding pipe is fixedly installed in the lower opening of the fixed plate. The motor is fixedly installed on the rear end of the fixed plate. Multiple blades are fixedly installed on the inner side of the blades on the front side of the motor shaft. A reinforcing support frame is fixedly installed between the rear side of the fixed plate and the outer side of the upper end of the feeding pipe. A support base is fixedly installed on one side of the upper end of the frame, and the lower outer end of the feeding pipe is fixedly installed on the upper part of the support base. The pushing mechanism includes an electric linear slide and a push rod. The lower end of the push rod is fixedly installed on the sliding block of the electric linear slide, and the lower end of the electric linear slide is fixedly installed on the other side of the upper end of the frame. The voltage regulator is installed in a component box, which is fixedly installed at the front end of the frame. The power output terminal of the voltage regulator and the power input terminal of the motor are connected by a wire.

[0006] Furthermore, a protective ring is fixedly installed on the front end of the fixing plate.

[0007] Furthermore, the blade has a cutting edge at its side end, and the rear end of the blade is spaced apart from the front end of the fixing plate.

[0008] Furthermore, the outer diameter of the feeding tube is larger than the outer diameter of the upper end of the push rod, and the upper end of the push rod and the feeding tube are in a straight line.

[0009] Furthermore, the upper end length of the push rod is the same as the length of the feeding tube.

[0010] Furthermore, the sliding block stroke of the electric lead screw slide is greater than the length of the push rod and the feed tube.

[0011] Furthermore, a magnet is fixedly installed on the side end of the sliding block, and a reed switch is fixedly installed on the side end of the housing of the electric linear slide. When the magnet moves to the upper end of the reed switch, the lower end of the magnet and the upper end of the reed switch are separated by a distance, and the magnetic force of the magnet acts on the reed switch, opening the circuit between the moving contact and the stationary contact inside the reed switch.

[0012] Furthermore, the two terminals of the reed switch are connected in series with a wire between one of the power input terminals of the electric linear slide.

[0013] Furthermore, the length of the conveying pipe is greater than the length of the multiple PA-GF raw material bundles.

[0014] Compared with existing technologies, the advantages of this invention are as follows: After the operator places multiple PA-GF raw material bundles into the feeding tube from right rear to left front, no manual operation is required. Controlled by a simple power switch, the electric linear slide table pushes the PA-GF raw material bundles one by one to the blade position for pelletizing via a push rod. Due to the presence of a reed switch and magnets, the electric linear slide table will de-energize and stop working when the sliding block reaches its left front position, thus protecting the electric linear slide table. This invention brings convenience to operators and correspondingly improves work efficiency, therefore it has good application prospects. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention when the push rod is not in the feeding tube.

[0017] Figure 2 This is a schematic diagram of the overall structure of the push rod of this utility model when it enters the feeding tube.

[0018] Figure 3 This is the circuit diagram of this utility model. Detailed Implementation

[0019] Figure 1 , 2 As shown in Figure 3, the PA-GF pelletizing device includes a voltage regulator A1, a motor M, blades 1, a frame 2, a power switch S1, a power module A2, a fixing plate 3, a feeding pipe 4, and a pushing mechanism 5. The circular fixing plate 3 has an opening 31 at its center and lower end. The outer left front end of the feeding pipe 4 is fixedly installed in the opening 31 at the lower end of the fixing plate. The motor M is fixedly installed at the center of the rear end of the fixing plate 3, and its shaft rotates to the center of the front outer end of the fixing plate. There are three blades 1, with their inner sides equally spaced and mounted on the side of a circular fixing seat 101. The center of the fixing seat 101 is fixedly installed on the front side of the motor M's shaft. The upper rear end of the fixing plate 3 and the upper end of the feeding pipe 4... A reinforcing support frame 41 is fixedly installed between the middle and outer sides (to improve the stability of the fixing plate and motor). Two support seats 21 are fixedly installed at a distance between the left and right sides of the middle of the upper left end of the frame 2. The middle and lower outer ends of the feeding pipe 4 are respectively fixedly installed on the middle of the two support seats 21. The pushing mechanism includes an electric linear slide M1 and a "¬"-shaped push rod 51. The lower right end of the push rod 51 is fixedly installed on the sliding block of the electric linear slide M1. The lower end of the electric linear slide M1 is horizontally fixedly installed on the middle and right side of the upper end of the frame 2. The power module A2, voltage regulator A1, and power switch S1 are installed on the circuit board inside the component box 6. The component box 6 is fixedly installed on the upper left front end of the frame 2.

[0020] Figure 1 , 2 As shown in Figure 3, a protective ring 32 is fixedly installed on the left side of the fixing plate (to reduce the chance of blade separation and injury in extreme cases, and to prevent the granular material from splashing). One end of the blade 1 has a cutting edge, and the rear end of the blade 1 is 2 mm away from the front end of the fixing plate 3. The outer diameter of the feed tube 4 is 2 mm larger than the outer diameter of the upper end of the push rod 51, and the upper end of the push rod 51 and the feed tube 4 are in a straight line. The length of the upper end of the push rod 51 is the same as the length of the feed tube 4. The sliding block stroke of the electric lead screw slide M1 is greater than the length of the push rod 51 and the feed tube 4. A permanent rectangular magnet 6 is fixedly installed at the lower front end of the sliding block. A reed switch GH (installed in a small plastic box) is fixedly installed at the left front end of the housing of the electric linear slide M1. The moving contact of the reed switch GH is horizontally located at the upper end. When the magnet 6 moves to the upper end of the reed switch, the lower end of the magnet 6 and the upper end of the reed switch GH are 1 mm apart. The magnetic force of the magnet 6 acts on the reed switch GH, and the moving and stationary contacts inside the reed switch GH are open-circuited. The two terminals of the reed switch GH are connected in series with a wire between one of the positive power output terminals (pin 3) of the power switch S1 and the positive power input terminal of the electric linear slide M1. The length of multiple PA-GF raw material bundles is less than the length of the conveying pipe 4. The power input terminals 1 and 2 of power module A2 and voltage regulator A1 are respectively connected to the two poles of a 220V AC power supply via wires. The power output terminals 3 and 4 of voltage regulator A1 are connected to the power input terminal of motor M via wires. The power output terminals 3 and 4 of power module A1 are connected to the power input terminals 1 and 2 of power switch S1 via wires. The power output terminals 3, 4, 5, and 6 of power switch S1 are connected to the positive and negative, and negative-positive, power input terminals of electric linear slide M1 via wires. The handles of the power switch and voltage regulator A1 are located outside the opening at the front end of the component box.

[0021] Figure 1 , 2As shown in Figure 3, after the AC 220 power supply enters the power input terminal of the power module A2, the power output terminals 3 and 4 of the power module A2 output a stable DC 24V power supply which enters the power input terminal of the power switch S1. The working process of this new type is as follows: (1): The operator turns on the power switch of the motor M, and the motor M is powered on and its shaft drives the three blades 1 to rotate rapidly, placing multiple PA-GF raw material bundles from the right rear to the left front into the feeding tube 4. The right rear end of the multiple PA-GF raw material bundles and the rear end of the feeding tube 4 are in a vertical plane (and a receiving frame is placed at the lower end of the fixed plate). (2): The operator moves the handle of the power switch S1 to the left, and pins 1 and 2 and pins 3 and 4 of the power switch S1 are connected respectively. In this way, the positive and negative power input terminals of the motor of the electric linear slide table M1 are energized. The sliding block of the electric linear slide table M1 drives the push rod 51 to push multiple PA-GF raw material bundles from the right rear to the left front, and gradually move to the left front. In this way, the left front end of the multiple PA-GF raw material bundles will be continuously cut into granules during the movement (the faster the speed of the motor M, the shorter the length of the granules, and vice versa; specifically, the operator adjusts the power supply voltage output of the voltage regulator A1 to the motor M as needed. When the voltage is high, the motor speed is fast; when the voltage is low, the motor speed is slow). (3): After the push rod pushes out all the PA-GF raw material bundles, the staff turns off the power switch S1 to complete the pelletizing of a batch of PA-GF raw material bundles; In actual cases, when the staff forgets to turn off the power switch S1, when the magnet 7 moves to the upper end of the reed switch GH, the magnetic force of the magnet 6 acts on the reed switch GH, and the moving contact and stationary contact inside the reed switch GH are open. Since the two terminals of the reed switch GH are connected in series between one of the positive power output terminals 3 of the power switch S1 and the positive power input terminal of the electric linear slide M1, the electric linear slide M1 will lose power and stop working at this time, preventing the electric linear slide M1 from moving uncontrollably to the left and causing damage to the electric linear slide M1. (4): The worker moves the handle of the power switch S1 to the right, and pins 1 and 2 and pins 5 and 6 of the power switch S1 are connected respectively. In this way, the negative and positive power input terminals of the motor of the electric linear slide table M1 are energized. The sliding block of the electric linear slide table M1 drives the push rod 51 to move from the left front to the right rear. After the push rod 51 moves to the position, the power switch S1 is turned off. The process is the same as above. The worker can then carry out the pelletizing work of multiple PA-GF raw material bundles in the next batch.

[0022] Figure 1 , 2As shown in Figure 3, through the above technical solution, after the operator places multiple PA-GF raw material bundles into the feeding tube from right rear to left front, no manual operation is required. Controlled by a simple power switch, the electric linear slide can push the multiple PA-GF raw material bundles one by one to the blade position for pelletizing via a push rod. Due to the presence of a reed switch and magnet, the electric linear slide will lose power and stop working when the sliding block moves to the left front position, thus protecting the electric linear slide and providing convenience for the operator, thereby improving work efficiency. Power module A2 is an AC 220V to DC 24V power module; electric linear slide M1 has a power of 200W; motor M1 has a power of 2.5KW; reed switch GH is a normally closed contact reed switch; voltage regulator A1 is a finished product with a power of 5KW and an output power of 0-220V.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0024] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A PA-GF pelletizing device, comprising a voltage regulator, a motor, blades, a frame, a fixing plate, and a feeding pipe, characterized in that, It also has a pushing mechanism; the middle and lower ends of the fixed plate have openings respectively, the front end of the feeding tube is fixedly installed in the lower opening of the fixed plate, the motor is fixedly installed on the rear end of the fixed plate, there are multiple blades, and the inner sides of the multiple blades are fixedly installed on the front side of the motor shaft; a reinforcing support frame is fixedly installed between the rear side of the fixed plate and the outer side of the upper end of the feeding tube, a support seat is fixedly installed on one side of the upper end of the frame, and the lower outer end of the feeding tube is fixedly installed on the upper part of the support seat; the pushing mechanism includes an electric linear slide and a push rod, the lower end of the push rod is fixedly installed on the sliding block of the electric linear slide, and the lower end of the electric linear slide is fixedly installed on the other side of the upper end of the frame; the voltage regulator is installed in the component box, the component box is fixedly installed at the front end of the frame, and the power output terminal of the voltage regulator and the power input terminal of the motor are connected by wires.

2. The PA-GF pelletizing device according to claim 1, characterized in that, A protective ring is fixedly installed on the front end of the fixing plate.

3. The PA-GF pelletizing device according to claim 1, characterized in that, The blade has a cutting edge on its side, and the rear end of the blade is spaced apart from the front end of the fixing plate.

4. The PA-GF pelletizing device according to claim 1, characterized in that, The outer diameter of the feeding tube is larger than the outer diameter of the upper end of the push rod, and the upper end of the push rod and the feeding tube are in a straight line.

5. The PA-GF pelletizing device according to claim 1, characterized in that, The length of the upper end of the push rod is the same as the length of the feeding tube.

6. The PA-GF pelletizing device according to claim 1, characterized in that, The stroke of the sliding block of the electric lead screw slide table is greater than the length of the push rod and the feed tube.

7. The PA-GF pelletizing device according to claim 1, characterized in that, A magnet is fixedly installed on the side end of the sliding block, and a reed switch is fixedly installed on the side end of the housing of the electric linear slide. When the magnet moves to the upper end of the reed switch, the lower end of the magnet and the upper end of the reed switch are separated by a distance. The magnetic force of the magnet acts on the reed switch, and the moving contact and stationary contact inside the reed switch are open.

8. The PA-GF pelletizing device according to claim 1, characterized in that, The two terminals of the reed switch are connected in series with a wire between one of the power input terminals of the electric linear slide.

9. The PA-GF pelletizing device according to claim 1, characterized in that, The length of the delivery pipe is greater than the length of multiple PA-GF raw material bundles.

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