A device for cutting a glass fiber chopped mat

Abstract

The utility model provides a kind of glass fibre short cut felt ration cutting device, it is related to cutting equipment technical field, the glass fibre short cut felt ration cutting device includes installation part, traction part, cutting part, cutting part includes cutting unit and support unit, cutting unit is used to cut the glass fibre short cut felt of target length from felt roll;Guide part, guide part is used to guide glass fibre short cut felt from cutting unit and support unit pass through middle, while guide part can move downwards with support unit by the glass fibre short cut felt that traction comes out, this kind of cutting device can directly cut the glass fibre short cut felt that moves downwards, since cutter body can cut glass fibre short cut felt vertically, and retreat perpendicular to the direction of glass fibre short cut felt, cutter body does not make glass fibre short cut felt appear pulling situation when cutting, to avoid the situation that glass fibre short cut felt appears burr, improve cutting quality.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment technology, specifically a quantitative cutting device for chopped strand mat of glass fiber. Background Technology

[0002] Before use, continuous chopped fiberglass mat needs to be cut into pieces of a certain length for convenient use. This process requires a cutting device, which consists of a roller and a cutting pad. The chopped fiberglass mat passes between the roller and the cutting pad while the roller rotates. When the roller and the cutting pad are pressed together, the chopped fiberglass mat between them is cut off. By adjusting the rotation speed of the roller relative to the chopped fiberglass mat, different lengths of chopped fiberglass mat can be cut. However, because the moving speed of the chopped fiberglass mat and the speed of the roller are not matched, the cut edges are stretched, and the fibers are prone to displacement, resulting in rough edges on the chopped fiberglass mat and poor cutting effect. Utility Model Content

[0003] The purpose of this invention is to provide a quantitative cutting device for chopped strand mat of glass fiber, which aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: the glass fiber chopped strand mat quantitative cutting device includes: The mounting section is used to place the felt roll and collect the cut glass fiber chopped strand mat; The traction unit is used to pull out the chopped glass fiber mat from the felt roll and can control the length of the pulled-out chopped glass fiber mat. The cutting section includes a cutting unit and a support unit, with the chopped fiberglass mat located between the cutting unit and the support unit. The cutting unit is used to cut the chopped fiberglass mat of the target length from the mat roll. The guide section is used to guide the chopped fiberglass mat through the middle of the cutting unit and the support unit, and at the same time, the guide section can move the pulled-out chopped fiberglass mat downward along the support unit.

[0005] Preferably, the mounting part includes a collection groove, the upper end of the collection groove is provided with a channel, the upper end of the channel is provided with two through slots, a bracket is provided between the two through slots, a fixed shaft is provided on the bracket, and sleeves are rotatably connected to both sides of the fixed shaft, and the felt roll is sleeved on the outer surface of the sleeve.

[0006] Preferably, the traction unit includes a driving roller and a driven roller. The driving roller is disposed inside the upper end of the channel and is rotatably connected to the channel. Fixed grooves are respectively opened on the upper sides of the channel. Support plates are disposed inside the two fixed grooves. The support plates are slidably connected to the fixed grooves. Compressible pads are disposed on the sides of the support plates. The two ends of the driven roller are respectively rotatably connected to the support plates. A motor for driving the driving roller to rotate is disposed on the outer side of the channel. The driving roller and the driven roller are connected by gear transmission.

[0007] Preferably, the support unit in the cutting section includes a base plate, one side of which is provided with a rubber protective layer. The base plate is fixed to the channel. The side of the channel has a groove for accommodating the rubber protective layer, and the other side of the channel has a groove. The cutting unit includes a guide cylinder disposed on the outside of the channel and communicating with the groove. A clamping plate is slidably connected inside the guide cylinder. Two blades are disposed on one side of the clamping plate, and a side frame is disposed on the other side of the clamping plate. A cylinder is disposed on the guide cylinder, and the output end of the cylinder is fixedly connected to the side frame.

[0008] Preferably, the guide portion includes a guide plate disposed within the channel, the guide plate being inclined, an air chamber being disposed inside the guide plate, an air nozzle being disposed on the side wall of the air chamber, and an air inlet being disposed at one end of the air chamber.

[0009] The beneficial effects of this utility model are: This cutting device can directly cut downward-moving chopped fiber mat. Since the blade can cut the chopped fiber mat perpendicularly and move backward perpendicular to the direction of the chopped fiber mat, the blade will not cause the chopped fiber mat to be pulled during cutting, thereby avoiding burrs on the chopped fiber mat and improving the cutting quality. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0011] Figure 2 This is a schematic diagram of the structure on the other side of the passage.

[0012] Figure 3 This is a structural diagram of the support plate and pad.

[0013] Figure 4 This is a front view of a specific embodiment of the present utility model.

[0014] Figure 5 This is a schematic diagram of the internal structure of the channel.

[0015] In the diagram: 1. Felt roll; 2. Fiberglass chopped strand mat; 3. Collection trough; 4. Channel; 5. Through groove; 6. Support; 7. Fixed shaft; 8. Sleeve; 9. Driving roller; 10. Driven roller; 11. Support plate; 12. Pad; 13. Motor; 14. Gear; 15. Base plate; 16. Rubber protective layer; 17. Guide cylinder; 18. Clamping plate; 19. Blade body; 20. Side frame; 21. Cylinder; 22. Guide plate; 23. Air chamber; 24. Air nozzle; 25. Air inlet port. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0017] like Figure 1-5 As shown, a quantitative cutting device for chopped strand mat of glass fiber includes: The mounting section is used to place the felt roll 1 and collect the cut glass fiber chopped strand mat 2; The traction unit is used to pull out the chopped glass fiber mat 2 from the felt roll 1, and can control the length of the pulled-out chopped glass fiber mat 2. The cutting section includes a cutting unit and a support unit. The chopped fiberglass mat 2 is located between the cutting unit and the support unit. The cutting unit is used to cut the chopped fiberglass mat 2 of the target length from the mat roll 1. The guide section is used to guide the chopped fiberglass mat 2 through the middle of the cutting unit and the support unit. At the same time, the guide section can move the pulled-out chopped fiberglass mat 2 downward along the support unit.

[0018] Furthermore, the installation part includes a collection tank 3, the upper end of the collection tank 3 is provided with a channel 4, the upper end of the channel 4 is provided with two through slots 5, a bracket 6 is provided between the two through slots 5, a fixed shaft 7 is provided on the bracket 6, and sleeves 8 are rotatably connected to both sides of the fixed shaft 7, and the felt roll 1 is sleeved on the outer surface of the sleeve 8.

[0019] The felt roll 1 includes a core and chopped fiberglass mat 2 wound around the outside of the core. The core of the felt roll 1 can be fitted onto the sleeve 8. The inner diameter of the core is 35 mm and the outer diameter of the sleeve 8 is 34 mm. The felt roll 1 can rotate together with the sleeve 8 on the fixed shaft 7, and the felt roll 1 can also rotate independently on the sleeve 8. Whether the sleeve 8 will rotate with the core depends on the weight of the chopped fiberglass mat 2 wound around the outside of the core. When the weight of the chopped fiberglass mat 2 outside the core is large, the friction between the core and the sleeve 8 can make the sleeve 8 rotate with the felt roll 1. However, as the chopped fiberglass mat 2 is continuously released, the weight of the felt roll 1 gradually decreases, and the friction between the felt roll 1 and the sleeve 8 also gradually decreases. The sleeve 8 will no longer be able to continuously rotate with the felt roll 1.

[0020] Since felt rolls 1 can be placed at both ends of the fixed shaft 7, the fixed shaft 7 can be kept in balance, avoiding imbalance caused by pressure on one side of the fixed shaft 7.

[0021] The through groove 5 on the channel 4 allows the chopped fiberglass mat 2 released from the felt roll 1 to enter the channel 4. After the chopped fiberglass mat 2 enters the channel 4 and is effectively pulled by the traction unit, the chopped fiberglass mat 2 will not contact the through groove 5. At the same time, since the chopped fiberglass mat 2 on the felt roll 1 is pulled by the traction unit, the chopped fiberglass mat 2 and the traction unit maintain a relatively taut state, which can prevent the felt roll 1 from moving laterally on the fixed shaft 7. Therefore, no additional fixing of the felt roll 1 is required, which facilitates the placement and removal of the felt roll 1.

[0022] Furthermore, the traction unit includes a driving roller 9 and a driven roller 10. The driving roller 9 is disposed inside the upper end of the channel 4 and is rotatably connected to the channel 4. Fixed grooves are respectively opened on the upper part of both sides of the channel 4. Support plates 11 are provided inside the two fixed grooves. The support plates 11 are slidably connected to the fixed grooves. Compressible pads 12 are provided on the side of the support plates 11. The two ends of the driven roller 10 are rotatably connected to the support plates 11 respectively. A motor 13 for driving the driving roller 9 to rotate is provided on the outside of the channel 4. The driving roller 9 and the driven roller 10 are driven by a gear 14.

[0023] When pulling the chopped fiberglass mat 2 downwards on the felt roll 1, the motor 13 needs to be started first. The motor 13 drives the drive roller 9 to rotate. The drive roller 9 and the driven roller 10 are driven by gear 14. The drive roller 9 and the driven roller 10 rotate in opposite directions at the same speed. The outer surfaces of the drive roller 9 and the driven roller 10 are coated with a rubber coating to increase the friction between them and the chopped fiberglass mat 2. The operator needs to manually release a certain length of the chopped fiberglass mat 2 on the felt roll 1 so that the drive roller 9 and the driven roller 10 can engage with the chopped fiberglass mat 2. Then, the chopped fiberglass mat 2 is continuously released. The released chopped fiberglass mat 2 moves downwards naturally under the action of gravity. At the same time, when processing chopped fiberglass mat 2 of different thicknesses or other fabrics, the distance between the drive roller 9 and the driven roller 10 will increase, and the pad 12 can be compressed to adapt to more usage scenarios.

[0024] The two gears 14 can always maintain meshing, and even if the distance between the driving roller 9 and the driven roller 10 increases, the increase in distance is less than 2mm and does not affect the normal transmission between the two gears 14.

[0025] Motor 13 needs to be selected with an integrated reducer to drive the rotation of both the drive roller 9 and the driven roller 10. An encoder needs to be installed on the drive roller 9, providing a series of pulse signals. The number of pulses is proportional to the rotation angle of the drive roller 9. The circumference of the drive roller 9 can be measured, and the length of the chopped glass fiber mat 2 being conveyed can be calculated. This is controlled by a PLC system. When the length of the chopped glass fiber mat 2 conveyed by the drive roller 9 reaches the target length, motor 13 stops working, and the drive roller 9 stops rotating. The cutting section cuts the glass fiber chopped mat 2 to the target length. At the same time, the motor 13 can continue to run. When the glass fiber chopped mat 2 moves downward, the cutting section can cut the glass fiber chopped mat 2 while it is moving. At this time, the moving speed of the glass fiber chopped mat 2 needs to be kept at a relatively low speed, such as 30cm / s, to ensure that the cutting section can accurately cut the glass fiber chopped mat 2. The above-mentioned cutting of the glass fiber chopped mat 2 meets the cutting requirements within the allowable error (±5mm).

[0026] Furthermore, the support unit in the cutting section includes a base plate 15, a rubber protective layer 16 is provided on one side of the base plate 15, the base plate 15 is fixed on the channel 4, a groove 1 is provided on the side of the channel 4 to accommodate the rubber protective layer 16, and a groove 2 is provided on the other side of the channel 4. The cutting unit includes a guide cylinder 17 provided on the outside of the channel 4 and communicating with the groove 2. A clamping plate 18 is slidably connected inside the guide cylinder 17. Two blades 19 are provided on one side of the clamping plate 18, and a side frame 20 is provided on the other side of the clamping plate 18. A cylinder 21 is provided on the guide cylinder 17, and the output end of the cylinder 21 is fixedly connected to the side frame 20.

[0027] When cutting the chopped fiberglass mat 2, the cylinder 21 is activated. The cylinder 21 drives the clamping plate 18 to move along the guide cylinder 17 through the side frame 20, and at the same time drives the blade 19 on the clamping plate 18 to move. The chopped fiberglass mat 2 located between the blade 19 and the rubber protective layer 16 will be cut. After the cutting of the chopped fiberglass mat 2 is completed, the cylinder 21 drives the blade 19 away from the rubber protective layer 16. The chopped fiberglass mat 2 that has been pulled continues to move downward, and the cut chopped fiberglass mat 2 falls into the collection tank 3.

[0028] The blade 19 can cut into the rubber protective layer 16, thereby effectively cutting the chopped fiberglass mat 2. After the blade 19 leaves the rubber protective layer 16, the rubber protective layer 16 has a certain self-healing effect, thus protecting the blade edge of the blade 19 while ensuring the cutting of the chopped fiberglass mat 2.

[0029] The cylinder 21 is equipped with a power source and is controlled by a PLC system so that it can accurately and efficiently cut the glass fiber chopped strand mat 2 according to the rotation of the drive roller 9.

[0030] Furthermore, the guide section includes a guide plate 22 disposed in the channel 4. The guide plate 22 is inclined and has an air chamber 23 inside. An air nozzle 24 is disposed on the side wall of the air chamber 23 and an air inlet port 25 is disposed at one end of the air chamber 23.

[0031] The guide plate 22 guides the chopped fiber mat 2 from the traction unit to the side near the rubber protective layer 16, preventing the chopped fiber mat 2 from contacting the retracted blade 19 and clamp 18. Then, the air inlet 25 is connected to an external air source, which provides compressed air to the air chamber 23. The compressed air in the air chamber 23 blows the chopped fiber mat 2 toward the inner wall of the channel 4 through the air nozzle 24, keeping the chopped fiber mat 2 relatively flat on the inner wall of the channel 4, so that the blade 19 can accurately cut the chopped fiber mat 2. At the same time, the pressure exerted by the gas blown out of the air nozzle 24 on the chopped fiber mat 2 is insufficient to resist the gravity of the chopped fiber mat 2 itself. The chopped fiber mat 2 will still move downward normally under the action of gravity, and the uncut chopped fiber mat 2 in the channel 4 will still be in a relatively flat state.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A quantitative cutting device for chopped strand mat of glass fiber, characterized in that, include: The mounting section is used to place the felt roll and collect the cut glass fiber chopped strand mat; The traction unit is used to pull out the chopped glass fiber mat from the felt roll and can control the length of the pulled-out chopped glass fiber mat. The cutting section includes a cutting unit and a support unit, with the chopped fiberglass mat located between the cutting unit and the support unit. The cutting unit is used to cut the chopped fiberglass mat of the target length from the mat roll. The guide section is used to guide the chopped fiberglass mat through the middle of the cutting unit and the support unit, and at the same time, the guide section can move the pulled-out chopped fiberglass mat downward along the support unit.

2. The quantitative cutting device for glass fiber chopped strand mat according to claim 1, characterized in that, The installation part includes a collection groove, the upper end of which is provided with a channel, and the upper end of the channel is provided with two through slots. A bracket is provided between the two through slots, and a fixed shaft is provided on the bracket. Sleeves are rotatably connected to both sides of the fixed shaft, and the felt roll is sleeved on the outer surface of the sleeve.

3. The quantitative cutting device for chopped strand mat of glass fiber according to claim 2, characterized in that, The traction unit includes a driving roller and a driven roller. The driving roller is disposed inside the upper end of the channel and is rotatably connected to the channel. Fixed grooves are respectively opened on the upper part of both sides of the channel. Support plates are disposed inside the two fixed grooves. The support plates are slidably connected to the fixed grooves. Compressible pads are disposed on the sides of the support plates. The two ends of the driven roller are rotatably connected to the support plates respectively. A motor for driving the driving roller to rotate is disposed on the outside of the channel. The driving roller and the driven roller are connected by gear transmission.

4. The quantitative cutting device for glass fiber chopped strand mat according to claim 3, characterized in that, The support unit in the cutting section includes a base plate with a rubber protective layer on one side. The base plate is fixed to the channel. The side of the channel has a groove for accommodating the rubber protective layer, and the other side of the channel has a groove. The cutting unit includes a guide cylinder that is disposed outside the channel and communicates with the groove. A clamping plate is slidably connected inside the guide cylinder. Two blades are disposed on one side of the clamping plate, and a side frame is disposed on the other side of the clamping plate. A cylinder is disposed on the guide cylinder, and the output end of the cylinder is fixedly connected to the side frame.

5. The quantitative cutting device for glass fiber chopped strand mat according to claim 4, characterized in that, The guide section includes a guide plate disposed in the channel. The guide plate is inclined and has an air chamber inside. An air nozzle is disposed on the side wall of the air chamber and an air inlet is disposed at one end of the air chamber.

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