Cutting and discharging system for PVC pipe production

Abstract

A cutting and unloading system for PVC pipe production, comprising cutting device and unloading device arranged in sequence from front to back, the cutting device comprises fixed frame, cutting table, pipe pressing cylinder and cutting machine, the cutting table is slidably installed on the fixed frame, the pipe pressing cylinder is installed above the cutting table, the cutting machine is movably installed below the cutting table through the lifting cylinder, and a pair of adjustable pipe positioning plates are respectively arranged on the top of the cutting table at the front and rear ends of the cutting machine; the utility model has the advantages that: the two sides of the pipe cutting position are synchronously pressed by double cylinders, the stability of cutting is greatly ensured, the upper dust hood and the lower dust hood cooperate, cutting debris and dust can be effectively collected, and dust dispersion is reduced; after the arc-shaped material receiving plate rotates, the opening faces one side, the PVC pipe automatically moves from the opening side of the arc-shaped material receiving plate to the material receiving slide plate, the material receiving belt of the material receiving slide plate is an elastic belt, and the scratches caused by collision can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of PVX pipe production equipment, specifically to a cutting and unloading system for PVC pipe production. Background Technology

[0002] PVC pipes are plasticizer-free, high-strength, and hard, primarily used for building water supply and drainage pipes, and industrial pipelines. They are produced through high-temperature plasticizing extrusion, cooling and shaping, and traction removal, followed by cutting into sections. Cooling is achieved using a spray method. Current cutting processes mostly involve fixing only one side of the pipe, resulting in low stability and significant dust emission, impacting the working environment. Furthermore, the unloading device experiences high friction as the pipe moves upwards after cutting, and the rough descent causes numerous scratches on the pipe's outer wall, affecting its appearance. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a cutting and unloading system for PVC pipe production.

[0004] This utility model includes a cutting device and an unloading device arranged from front to back. The cutting device includes a fixed frame, a cutting table, a pipe clamping cylinder and a cutting machine. The cutting table is slidably installed on the fixed frame. The pipe clamping cylinder is installed above the cutting table. The cutting machine is movably installed below the cutting table through a lifting cylinder. A pair of adjustable pipe positioning plates are respectively provided on the top of the cutting table at the front and rear ends of the cutting machine.

[0005] The unloading device includes a fixed receiving platform, a tilting receiving platform, and a receiving slide plate. The tilting receiving platform is rotatably mounted on the fixed receiving platform, and both the fixed receiving platform and the tilting receiving platform are coaxially provided with arc-shaped receiving plates. The receiving slide plate is installed at an incline on one side of the fixed receiving platform and is located below one side of the tilting receiving platform.

[0006] The cutting table is slidably mounted on the fixed frame via a linear slide, and a counterweight is connected to one end of the cutting table via a cable.

[0007] The cutting table is equipped with a cutting clearance hole. There are two pipe clamping cylinders, which are located on both sides of the cutting clearance hole. The piston rod of the pipe clamping cylinder is equipped with a clamping plate, and the middle of the clamping plate is equipped with an arc-shaped positioning groove with an opening facing downward.

[0008] The cutting table is equipped with an upper dust collection hood at the top and a lower dust collection hood at the bottom. Both sides of the upper and lower dust collection hoods are connected by pipes. The bottom of the lower dust collection hood is equipped with a discharge pipe, which contains an induced draft fan. One end of the discharge pipe is connected to a dust collection bag via a telescopic pipe.

[0009] A pair of arc-shaped guide rails are provided on one side of the arc-shaped receiving plate on the flip receiving platform, and a flip receiving platform mounting frame is provided on one side of the fixed receiving platform. The flip receiving platform mounting frame is provided with a pair of arc-shaped rolling guide rail sliders and a pair of support rollers that cooperate with the arc-shaped guide rails. A pair of drive gears are provided on the fixed receiving platform, and a flip receiving platform drive motor that controls the rotation of the pair of drive gears is provided at one end of the fixed receiving platform. An arc-shaped rack that cooperates with the drive gears is provided at the bottom of the arc-shaped receiving plate on the flip receiving platform.

[0010] A pair of drive gears are connected by a rotating shaft, and a baffle plate is provided at the discharge end of the receiving slide plate.

[0011] The advantages of this invention are: Simultaneous clamping of both sides of the pipe cutting area by dual cylinders greatly ensures cutting stability; the upper and lower dust collection hoods work together to effectively collect cutting debris and dust, reducing dust dispersion. After cutting, the PVC pipe enters the arc-shaped receiving plate, resulting in a small contact area. As the arc-shaped receiving plate rotates, its opening faces one side, allowing the PVC pipe to automatically flow from the opening side onto the receiving slide plate. The receiving strip on the receiving slide plate is elastic, effectively reducing scratches caused by collisions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the cutting device.

[0014] Figure 3 This is a schematic diagram of the internal structure of the cutting device.

[0015] Figure 4 This is a schematic diagram of the unloading device.

[0016] Figure 5 This is a schematic diagram of the side structure of the unloading device. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0019] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model. Furthermore, if terms such as "first" or "second" appear in the description of this utility model, they are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" 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.

[0021] As shown in the attached diagram, this utility model includes a cutting device 3 and a unloading device 4 arranged sequentially from front to back. The formed PVC pipe is cut at the cutting device 3 station, and the cut PVC pipe is unloaded through the unloading device 4, making it convenient for workers to stack them sequentially. In this invention, both the cutting device 3 and the unloading device 4 are equipped with height-adjustable support feet at the bottom, which can be adjusted according to the diameter of the extruded PVC pipe.

[0022] Structure and operation of cutting device 3: Cutting device 3 includes a fixed frame 20, a cutting table 21, a pipe clamping cylinder 22 and a cutting machine 23. The cutting table 21 is slidably mounted on the fixed frame 20. The pipe clamping cylinder 22 is mounted above the cutting table 21. The cutting machine 23 is movably mounted below the cutting table 21 via a lifting cylinder 24. A pair of adjustable pipe positioning plates 25 are respectively provided on the top of the cutting table 21 at the front and rear ends of the cutting machine 23.

[0023] The adjustable pipe positioning plate 25 positions the PVC pipe to prevent it from swaying left and right during cutting. The spacing can be adjusted according to the diameter of the PVC pipe. During cutting, the pipe clamping cylinder 22 presses the PVC pipe downward, making the cutting table 21 and the PVC pipe a single unit. At this time, the entire cutting table 21 will move forward with the PVC pipe. The lifting cylinder 24 controls the cutting machine 23 to extend upward to cut the PVC pipe. After cutting, the cutting machine 23 retracts downward, and then the clamping cylinder 22 releases the PVC pipe. The cutting table 21 returns to its original position, and the PVC pipe at the rear end continues to be conveyed forward until it reaches the next cutting point. The above actions are repeated to cut the PVC pipe at the rear end again.

[0024] The adjustable pipe positioning plate 25 has outwardly inclined bends at both its front and rear ends. The adjustable pipe positioning plate 25 at the feed end has a pair of adjusting elongated holes, each with a locking screw connected to the cutting table 21. The two front adjustable pipe positioning plates 25 are positioned laterally to adjust their spacing. The adjustable pipe positioning plate 25 at the discharge end is rotatably mounted and locked to the cutting table 21 via screws. The two rear adjustable pipe positioning plates 25 are positioned at their tilt angles to adjust their spacing to accommodate the diameter of the PVC pipe.

[0025] Preferably, the cutting table 21 is slidably mounted on the fixed frame 20 via a linear slide. One end of the cutting table 21 is connected to a counterweight 28 via a cable. The counterweight 28 and the cutting table 21 are connected by a cable. The fixed frame 20 is equipped with a reversing wheel that cooperates with the cable. After the cutting is completed during the movement of the cutting table 21, when the clamping cylinder 22 is released, the cutting table 21 automatically returns to its initial position under the action of the counterweight 28. The weight of the counterweight 28 must be greater than the frictional force generated when the PVC pipe moves on the cutting table 21. That is, when the cutting table 21 is in its initial position, the frictional force generated when the PVC pipe moves on the cutting table 21 will not cause the cutting table 21 to move forward.

[0026] Preferably, the cutting table 21 is provided with a cutting avoidance hole, and there are two pipe clamping cylinders 22, which are respectively located on both sides of the cutting avoidance hole. The piston rod of the pipe clamping cylinder 22 is provided with a clamping plate 29, and the middle of the clamping plate 29 is provided with an arc-shaped positioning groove with an opening facing downward.

[0027] The arc-shaped positioning groove presses against the outer wall of the cylindrical tube from above, effectively preventing the PVC tube from rolling or shifting. In this case, the radius of the arc-shaped positioning groove is no greater than the radius of the PVC tube.

[0028] Furthermore, the top of the cutting table 21 is provided with an upper dust collection hood 31, and the bottom of the cutting table 21 is provided with a lower dust collection hood 32. The two sides of the upper dust collection hood 31 and the lower dust collection hood 32 are connected by pipes. The bottom of the lower dust collection hood 32 is provided with a discharge pipe, and an induced draft fan 33 is provided inside the discharge pipe. One end of the discharge pipe is connected to a dust collection bag 34 through a telescopic pipe.

[0029] The working ends of a pair of pipe clamping cylinders 22 are both located inside the upper dust collection hood 31. The upper dust collection hood 31 has PVC pipe through holes on both sides. The lower dust collection hood 32 covers the saw blade of the cutting machine 23. The opening of the lower dust collection hood 32 faces upward. The lower dust collection hood 32 has a saw blade mounting shaft clearance hole on one side, so that the saw blade of the cutting machine 23 can move up and down inside the lower dust collection hood 32. The debris and dust generated during cutting can be collected through the upper dust collection hood 31 and the lower dust collection hood 32. The induced draft fan 33 is turned on to suck the debris and dust collected in the lower dust collection hood 32 into the dust collection bag 34.

[0030] Structure and operation of unloading device 4: Unloading device 4 includes a fixed receiving platform 35, a tilting receiving platform 36 and a receiving slide plate 37. The tilting receiving platform 36 is rotatably mounted on the fixed receiving platform 35. Both the fixed receiving platform 35 and the tilting receiving platform 36 are coaxially provided with arc-shaped receiving plates 38. The receiving slide plate 37 is installed at an incline on one side of the fixed receiving platform 35 and is located below one side of the tilting receiving platform 36.

[0031] After the cut PVC pipe is moved to the flip receiving platform 36, the arc-shaped receiving plate 38 on the flip receiving platform 36 rotates at an angle so that the opening of the arc-shaped receiving plate 38 faces one side. The PVC pipe can then roll off the arc-shaped receiving plate 38 onto the receiving slide plate 37. In this case, the radius of the arc-shaped receiving plate 38 is larger than the radius of the PVC pipe. The arc-shaped receiving plate 38 on the fixed receiving platform 35 and the flip receiving platform 36 are coaxially arranged. When the arc-shaped receiving plate 38 on the flip receiving platform 36 flips, it will not affect the PVC pipe located in the arc-shaped receiving plate 38 on the fixed receiving platform 35.

[0032] In this case, the receiving slide plate 37 includes a receiving frame 49 and a set of receiving belts 50 arrayed on the top of the receiving frame 49. One end of the receiving frame 49 is hinged to the fixed receiving platform 35 through a pivot. The receiving belts 50 are rubber belts with a certain degree of elasticity. When the PVC pipe falls on them, they can play a good cushioning role and effectively reduce scratches caused by bumps.

[0033] Furthermore, a pair of arc-shaped guide rails 40 are provided on one side of the arc-shaped receiving plate 38 on the flip receiving platform 36, and a flip receiving platform mounting frame 41 is provided on one side of the fixed receiving platform 35. The flip receiving platform mounting frame 41 is provided with a pair of arc-shaped rolling guide rail sliders 42 and a pair of support rollers 43 that cooperate with the arc-shaped guide rails 40. A pair of drive gears 44 are provided on the fixed receiving platform 35, and a flip receiving platform drive motor 45 that controls the rotation of the pair of drive gears 44 is provided at one end of the fixed receiving platform 35. An arc-shaped rack 46 that cooperates with the drive gears 44 is provided at the bottom of the arc-shaped receiving plate 38 on the flip receiving platform 36.

[0034] The arc-shaped guide rail 40 and the arc-shaped receiving plate 38 are coaxially arranged. The arc-shaped rolling guide rail slider 42 is a fixed part, and the arc-shaped guide rail 40 is a movable part. The arc-shaped guide rail 40 carries the arc-shaped receiving plate 38 to rotate on the arc-shaped rolling guide rail slider 42. The support roller 43 is used to support the side of the arc-shaped receiving plate 38. The drive gear 44 supports the arc-shaped receiving plate 38 from the bottom. At the same time, the drive gear 44 acts as a drive wheel and cooperates with the arc-shaped rack 46 to drive the arc-shaped receiving plate 38 to rotate.

[0035] Furthermore, a pair of drive gears 44 are connected by a rotating shaft, and a baffle plate 48 is provided at the discharge end of the receiving slide plate 37. The rotating receiving table drive motor 45 is connected to the rotating shaft through a coupling, and drives a pair of drive gears 44 to rotate through the rotating shaft. The baffle plate 48 is used to block PVC pipes rolling off the receiving slide plate 37.

Claims

1. A cutting and unloading system for PVC pipe production, characterized in that The device includes a cutting device (3) and a unloading device (4) arranged from front to back. The cutting device (3) includes a fixed frame (20), a cutting table (21), a pipe clamping cylinder (22), and a cutting machine (23). The cutting table (21) is slidably mounted on the fixed frame (20). The pipe clamping cylinder (22) is mounted above the cutting table (21). The cutting machine (23) is movably mounted below the cutting table (21) via a lifting cylinder (24). A pair of adjustable pipe positioning plates (25) are respectively provided on the top of the cutting table (21) at the front and rear ends of the cutting machine (23). The unloading device (4) includes a fixed receiving platform (35), a flip receiving platform (36) and a receiving slide plate (37). The flip receiving platform (36) is rotatably installed on the fixed receiving platform (35), and both the fixed receiving platform (35) and the flip receiving platform (36) are coaxially provided with arc-shaped receiving plates (38). The receiving slide plate (37) is installed at an incline on one side of the fixed receiving platform (35) and is located below one side of the flip receiving platform (36).

2. The cutting and unloading system for PVC pipe production according to claim 1, characterized in that The cutting table (21) is slidably mounted on the fixed frame (20) via a linear slide, and one end of the cutting table (21) is connected to a counterweight (28) via a cable.

3. The cutting and unloading system for PVC pipe production according to claim 1, characterized in that The cutting table (21) is provided with a cutting clearance hole. There are two pipe clamping cylinders (22), which are located on both sides of the cutting clearance hole. The piston rod of the pipe clamping cylinder (22) is provided with a clamping plate (29), and the middle part of the clamping plate (29) is provided with an arc-shaped positioning groove with an opening facing downward.

4. The cutting and unloading system for PVC pipe production according to claim 1, characterized in that The top of the cutting table (21) is provided with an upper dust collection hood (31), and the bottom of the cutting table (21) is provided with a lower dust collection hood (32). The upper dust collection hood (31) and the lower dust collection hood (32) are connected by pipes on both sides. The bottom of the lower dust collection hood (32) is provided with a discharge pipe, and an induced draft fan (33) is provided inside the discharge pipe. One end of the discharge pipe is connected to a dust removal bag (34) through a telescopic pipe.

5. The cutting and unloading system for PVC pipe production according to claim 1, characterized in that A pair of arc-shaped guide rails (40) are provided on one side of the arc-shaped receiving plate (38) on the flip receiving platform (36), and a flip receiving platform mounting frame (41) is provided on one side of the fixed receiving platform (35). A pair of arc-shaped rolling guide rail sliders (42) and a pair of support rollers (43) that cooperate with the arc-shaped guide rails (40) are provided on the flip receiving platform mounting frame (41). A pair of drive gears (44) are provided on the fixed receiving platform (35), and a flip receiving platform drive motor (45) that controls the rotation of the pair of drive gears (44) is provided at one end of the fixed receiving platform (35). An arc-shaped rack (46) that cooperates with the drive gears (44) is provided at the bottom of the arc-shaped receiving plate (38) on the flip receiving platform (36).

6. The cutting and unloading system for PVC pipe production according to claim 5, characterized in that A pair of drive gears (44) are connected by a rotating shaft, and a baffle plate (48) is provided at the discharge end of the receiving slide plate (37).

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