Automatic cutting device capable of measuring length

Abstract

The utility model provides an automatic cutting device capable of measuring length, comprising: a guide rail, the guide rail is divided into two sections, and a cutting knife is arranged between the two end guide rails; a measuring device, the measuring device is arranged on one section of the guide rail, and measures the length of the tube body passing through the measuring device; a tube rolling device, the tube rolling device is arranged at the end of the other section of the guide rail, and is used to roll the cut tube body; the measuring device comprises a turntable and an encoder, the turntable is connected to the main shaft of the encoder, and an arc groove corresponding to the tube body is arranged on the outer periphery of the turntable; at least a plurality of rollers are evenly distributed in a section of the guide rail corresponding to the measuring device, the upper edge of the roller is not lower than the lower blade of the cutting knife, and an annular limit groove corresponding to the outer periphery of the turntable is arranged at both ends of the roller. The roller is arranged so that the PFA tube is higher than the lower blade of the cutting knife, so as to avoid the PFA tube from colliding with the cutting knife due to gravity. In addition, a limit groove corresponding to the turntable is arranged on the trustee, so as to limit the PFA tube and ensure the measurement accuracy.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic pipe production, and in particular relates to automatic cutting equipment capable of measuring length. Background Art

[0002] PFA tubes are usually produced by extrusion molding. After cooling and molding, they need to be cut and rolled according to preset lengths. In the prior art, the conventional method of passing the PFA tube through a cutter and measuring the length through a sensor will cause the PFA tube to collide with the cutter. Since the appearance of the PFA tube requires high precision, the existing cutting equipment cannot meet actual needs.

[0003] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art. The utility model designs an automatic cutting device capable of measuring length.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic cutting device capable of measuring length, comprising:

[0007] A guide rail, the guide rail is divided into two sections, and a cutting knife is provided between the guide rails at both ends;

[0008] A measuring device, the measuring device is correspondingly arranged on one section of the guide rail, and measures the length of the pipe body passing through the measuring device;

[0009] A tube rolling device, which is arranged at the end of another section of the guide rail and is used to roll up the cut tube body;

[0010] The measuring device comprises a rotating disk and an encoder, wherein the rotating disk is connected to the main shaft of the encoder, and an arc groove corresponding to the tube body is arranged on the outer periphery of the rotating disk;

[0011] A plurality of rollers are evenly distributed in at least one section of the guide rail corresponding to the measuring device, the upper edge of the rollers is not lower than the lower blade of the cutting knife, and both ends of the rollers are provided with annular limiting grooves corresponding to the outer circumference of the turntable.

[0012] Preferably, the cutting knife comprises an upper blade body and a lower blade body, the upper blade body is arranged on a knife holder, and the knife holder is longitudinally driven by a driving rod;

[0013] The lower blade body is correspondingly arranged on the knife seat, baffles are arranged on both sides of the knife seat, an adjustment gap is provided between the baffles and the side walls of the knife seat, and both ends of the baffles are equipped with tightening bolts that abut against the side walls of the knife seat.

[0014] Preferably, an inclined surface is provided on the side of the upper blade body and the lower blade body that are away from each other, so as to serve as a cutting blade to cut the tube body, wherein the inclined surface of the lower blade body is located on one side of the measuring device.

[0015] Preferably, a support plate corresponding to the lower blade body is provided on the top of the knife seat, the support plate is assembled by sliding along the longitudinal direction through a plurality of studs, and a return spring is provided between the knife seat and the support plate.

[0016] Preferably, the support plate is provided with a strip hole corresponding to the stud and pointing to the lower blade body, and the side edge of the support plate is provided with an inclined surface corresponding to the lower blade body.

[0017] Preferably, a guide plate extends downward from one end of the upper blade body, and the guide plate corresponds to and fits the side wall of the lower blade body.

[0018] Preferably, the cutting edge of the upper blade body is distributed obliquely, wherein the cutting edge of the upper blade body on a side corresponding to the guide plate is inclined downward.

[0019] Preferably, the tube reel device comprises a motor and a reel, the reel comprises a fixed reel and a disassembly reel, the fixed reel is fixed on the main shaft of the motor, and the disassembly reel is slidably mounted on the main shaft of the motor;

[0020] A detachable limiting rod is provided on the fixing plate. The limiting rod extends parallel to the main shaft of the motor and passes through the disassembly plate.

[0021] Preferably, the limiting rod is provided with a threaded section at one end corresponding to the fixing plate, and the threaded end is fixed to the fixing plate by bolts.

[0022] Preferably, the fixing plate and the disassembly plate are provided with strip holes corresponding to the limiting rods and extending in the radial direction thereof.

[0023] Beneficial effect: The roller is set to make the PFA tube higher than the lower blade of the cutting knife, thereby preventing the PFA tube from colliding with the cutting knife due to gravity. In addition, a limit groove corresponding to the turntable is set on the hosting to limit the PFA tube and ensure measurement accuracy.

[0024] A support plate is provided, which can support the PFA tube to further ensure that the PFA tube touches the lower blade body when not cutting. The support plate is docked with the inclined surface of the lower blade body through the inclined surface, and only gives way to the PFA tube when the upper blade body is pressed down to ensure the flatness of the cutting edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0026] Figure 1 A schematic structural diagram of the automatic cutting device in a specific embodiment provided by the utility model;

[0027] Figure 2 A schematic diagram of the structure of a cutting knife in a specific embodiment of the present invention;

[0028] Figure 3 This is a simplified structural diagram of the pipe reel device in a specific embodiment provided by the utility model.

[0029] In the figure: 1. guide rail; 2. cutting knife; 3. encoder; 4. turntable; 5. roller; 6. tube body; 7. tube winding device; 8. guide plate; 201. support seat; 202. driving rod; 203. knife holder; 204. guide column; 205. upper blade body; 206. positioning bolt; 207. lower blade body; 208. knife holder; 209. support plate; 210. baffle; 211. tightening bolt; 701. motor; 702. fixing plate; 703. limiting rod; 704. disassembly plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0031] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0033] like Figure 1-3 As shown, an automatic cutting device capable of measuring length includes a guide rail 1, a measuring device and a tube rolling device 7. The guide rail 1 is divided into two sections. A cutting knife 2 is arranged between the two end guide rails 1. The guide rails 1 extend to both sides of the cutting knife 2. The measuring device is correspondingly arranged on one section of the guide rail 1, specifically on the side close to the PFA tube extrusion device. The measuring device is used to measure the length of the tube body 6. Specifically, the measuring device squeezes the tube body 6 downward to ensure the measurement accuracy. The tube rolling device 7 is arranged at the end of the other section of the guide rail 1. The tube body 6 is rolled after passing through the guide rail 1, so as to roll the cut tube body 6, thereby completing the cutting and rolling of the tube body 6.

[0034] The measuring device includes a turntable 4 and an encoder 3. The turntable 4 is correspondingly connected to the main shaft of the encoder 3. The outer periphery of the turntable 4 is provided with an arc groove corresponding to the tube body 6. The turntable 4 squeezes the tube body 6 downward, so as to accurately measure the tube body 6 passing through the turntable 4. At least a plurality of rollers 5 are evenly distributed in a section of the guide rail 1 corresponding to the measuring device. The upper edge of the roller 5 is not lower than the lower blade 207 of the cutting knife 2, and both ends of the roller 5 are provided with annular limit grooves corresponding to the outer periphery of the turntable 4; preferably, rollers 5 are arranged in both sections of the guide rails 1, and a roller 5 is arranged at one end of the guide rails 1 at both ends close to the cutting knife, so as to ensure support for the tube body 6.

[0035] The limiting groove and the arc groove form a limiting channel for the tube body 6 to ensure the running track of the tube body 6.

[0036] In this embodiment, the guide rail 1 is fixed on a base, and a cross frame corresponding to the measuring device or the pipe winding device 7 is provided on the base.

[0037] The base of the encoder 3 is fixed on a mounting seat, and two guide rods are provided above the mounting seat and are longitudinally slidably mounted on a horizontal frame. The turntable 4 squeezes the tube body 6 by gravity, thereby preventing the tube body 6 from being deformed.

[0038] Furthermore, when the hardness of the tube body 6 is high, in order to ensure the measurement accuracy, a driving spring is provided outside the guide rod between the mounting seat and the cross frame. The driving spring drives the encoder 3 to maintain a downward movement trend, thereby pressing the passing tube body 6.

[0039] In an optional embodiment, the cutting knife 2 includes an upper blade body 205 and a lower blade body 207. The upper blade body 205 and the lower blade body 207 are staggered to achieve cutting of the tube body 6. The upper blade body 205 is set on the blade holder 203. A plurality of through holes are set on the upper blade body 205. The fastening bolt passes through the upper blade body 205 and is fixed on the blade holder 203. The blade holder 203 is driven longitudinally by the driving rod 202, thereby staggering downward with the lower blade body 207 and cutting the tube body 6.

[0040] The lower blade body 207 is correspondingly arranged on the knife seat 208, and baffles 210 are provided on both sides of the knife seat 208. The length of the baffle 210 is adapted to the length of the knife seat 208, and the gap between the two baffles 210 is larger than the knife seat 208, so that there is an adjustment gap between the baffle 210 and the side wall of the knife seat 208, and both ends of the baffle 210 are equipped with tightening bolts 211 that abut against the side wall of the knife seat 208. The tightening bolts 211 can be used to adjust the specific position of the knife seat 208 between the baffles 210, so that the side surface of the lower blade body 207 and the upper blade body 205 that are close to each other are located in the same plane as much as possible, thereby improving the smoothness of cutting.

[0041] In this embodiment, the upper blade body 205 and the lower blade body 207 are correspondingly arranged on the support seat 201, and the support seat 201 is provided with installation space corresponding to the upper blade body 205 and the lower blade body 207. The driving rod 202 is a hydraulic rod and a gas rod, which drives the tool holder 203 in the longitudinal direction. Guide columns 204 are provided at both ends of the tool holder 203. The guide columns 204 pass through the support seat 201 upward to ensure the running trajectory of the tool holder 203.

[0042] In this embodiment, in order to improve the service life of the upper blade body 205, a limit plate corresponding to the upper part of the upper blade body 205 is provided on the tool holder 203, and a positioning bolt 206 corresponding to at least two ends of the upper blade body 205 is provided on the limit plate. After passing through the limit plate, the positioning bolt 206 abuts against the upper part of the upper blade body 205, thereby ensuring that the upper blade body 205 is subjected to longitudinal force, improving the service life, and avoiding deformation of the upper blade body 205 due to force.

[0043] In this embodiment, an inclined surface is provided on the side where the upper blade body 205 and the lower blade body 207 are away from each other, so as to serve as a cutting edge to cut the tube body 6. The sharpness of the cutting knife 2 is improved by the inclined surface, wherein the inclined surface of the lower blade body 207 is located on one side of the measuring device, which can ensure that the tube body 6 extends forward through the inclined surface, thereby avoiding damage to the tube body 6 by the lower blade body 207.

[0044] In this embodiment, in order to further protect the tube body 6, a support plate 209 corresponding to the lower blade body 207 is provided on the top of the knife seat 208. The length of the support plate 209 is adapted to the length of the lower blade body 207. The support plate 209 is assembled by sliding along the longitudinal direction through multiple studs. A return spring is provided between the knife seat 208 and the support plate 209. The return spring squeezes the upper surface of the support plate 209 to be not lower than the upper edge of the lower blade body 207, thereby preventing the cutting knife 2 from damaging the outer wall of the tube body 6.

[0045] In this embodiment, a strip hole corresponding to the stud and pointing to the lower blade body 207 is provided on the support plate 209, and an inclined surface corresponding to the lower blade body 207 is provided on the side edge of the support plate 209. During the downward movement, the support plate 209 is horizontally displaced through the strip hole through the action of the inclined surface, ensuring that the support plate 209 can block the inclined surface of the lower blade body 207 when not cutting, and when cutting, it is displaced downward along the inclined surface of the lower blade body 207 and away from the lower blade body 207 due to the force.

[0046] Furthermore, an extrusion piece may be provided on the side of the support plate 209 away from the lower blade body 207. The extrusion piece may be a spring or a spring leaf. The extrusion piece drives the support plate 209 toward the lower blade body 207 so that the support plate 209 can cover the inclined surface of the lower blade body 207 again under the action of the reset spring and the extrusion piece.

[0047] In this embodiment, a hexagon socket bolt head is provided on the top of the stud, and the strip-shaped hole is a stepped hole corresponding to the stud.

[0048] In an optional embodiment, a guide plate 8 extends downward from one end of the upper blade body 205, and the guide plate 8 corresponds to the side wall of the lower blade body 207, so as to limit the adjustment position of the knife seat 208. A notch or groove corresponding to the guide plate 8 is provided below the support seat 201 to make way for the guide plate 8 during the downward movement of the upper blade body 205.

[0049] In an optional embodiment, the cutting edge of the upper blade body 205 is distributed obliquely, and the upper blade body 205 and the lower blade body 207 are made to perform scissor-like cutting by inclining. Specifically, the cutting edge of the upper blade body 205 corresponding to the side of the guide plate 8 is inclined downward, thereby lowering the cutting surface and reducing the difficulty of cutting.

[0050] In this embodiment, there is a guide plate 8 extending to the tube winding device 7 at the end of the guide rail 1. The tube winding device 7 includes a motor 701 and a reel. The reel includes a fixed disc 702 and a disassembly disc 703. The gap between the fixed disc 702 and the disassembly disc 703 is used for winding the tube body 6. The fixed disc 702 is fixed on the main shaft of the motor 701, and the disassembly disc 703 is slidably assembled on the main shaft of the motor 701, so that the winding space can be adjusted. A detachable limiting rod is provided on the fixed disc 702. First, one end of the tube body 6 is inserted into the limiting rod, and the tube body 6 is restricted by the limiting rod, so that the tube body 6 is wound when the reel rotates. The limiting rod extends parallel to the main shaft of the motor 701 and passes through the disassembly disc 703, so that the limiting rod can be used for different winding spaces.

[0051] In this embodiment, a threaded section is provided at one end of the limiting rod corresponding to the fixed plate 702, and the threaded end is fixed to the fixed plate 702 by bolts. Furthermore, the fixed plate 702 and the disassembly plate are provided with strip holes corresponding to the limiting rod and extending along their radial direction, so that the position of the limiting rod can be adjusted according to the outer diameter of the tube body 6 to ensure the limitation of the tube body 6.

[0052] In an optional embodiment, the motor 701 is a stepper motor 701, the driving rod 202 is a gas rod, the control valve of the gas rod is a solenoid valve, the solenoid valve, the motor 701 and the encoder 3 are correspondingly connected to the controller, and the controller can be a single chip microcomputer or a plc controller.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. An automatic cutting device capable of measuring length, characterized in that: include: A guide rail, the guide rail is divided into two sections, and a cutting knife is provided between the guide rails at both ends; A measuring device, the measuring device is correspondingly arranged on one section of the guide rail, and measures the length of the pipe body passing through the measuring device; A tube rolling device, which is arranged at the end of another section of the guide rail and is used to roll up the cut tube body; The measuring device comprises a rotating disk and an encoder, wherein the rotating disk is connected to the main shaft of the encoder, and an arc groove corresponding to the tube body is arranged on the outer periphery of the rotating disk; A plurality of rollers are evenly distributed in at least one section of the guide rail corresponding to the measuring device, the upper edge of the rollers is not lower than the lower blade of the cutting knife, and both ends of the rollers are provided with annular limiting grooves corresponding to the outer circumference of the turntable.

2. The automatic cutting device capable of measuring length according to claim 1, characterized in that: The cutting knife comprises an upper blade body and a lower blade body, wherein the upper blade body is arranged on a knife holder and the knife holder is longitudinally driven by a driving rod; The lower blade body is correspondingly arranged on the knife seat, baffles are arranged on both sides of the knife seat, an adjustment gap is provided between the baffles and the side walls of the knife seat, and both ends of the baffles are equipped with tightening bolts that abut against the side walls of the knife seat.

3. The automatic cutting device capable of measuring length according to claim 2, characterized in that: An inclined surface is arranged on the side of the upper blade body and the lower blade body which are away from each other so as to serve as a cutting blade to cut the tube body, wherein the inclined surface of the lower blade body is located on one side of the measuring device.

4. The automatic cutting device capable of measuring length according to claim 3, characterized in that: A supporting plate corresponding to the lower blade body is provided on the top of the knife seat. The supporting plate is assembled by sliding along the longitudinal direction through a plurality of studs. A return spring is provided between the knife seat and the supporting plate.

5. The automatic cutting device capable of measuring length according to claim 4, characterized in that: The support plate is provided with a strip hole corresponding to the stud and pointing to the lower blade body, and the side edge of the support plate is provided with an inclined surface corresponding to the lower blade body.

6. The automatic cutting device capable of measuring length according to claim 2, characterized in that: A guide plate extends downward from one end of the upper blade body, and the guide plate corresponds to and fits against the side wall of the lower blade body.

7. The automatic cutting device capable of measuring length according to claim 6, characterized in that: The cutting edge of the upper blade body is distributed obliquely, wherein the cutting edge of the upper blade body on a side corresponding to the guide plate is inclined downward.

8. The automatic cutting device capable of measuring length according to claim 1, characterized in that: The pipe reel device comprises a motor and a reel, wherein the reel comprises a fixed reel and a disassembly reel, wherein the fixed reel is fixed on the main shaft of the motor, and the disassembly reel is slidably mounted on the main shaft of the motor; A detachable limiting rod is provided on the fixing plate. The limiting rod extends parallel to the main shaft of the motor and passes through the disassembly plate.

9. The automatic cutting device capable of measuring length according to claim 8, characterized in that: The limiting rod is provided with a threaded section at one end corresponding to the fixing plate, and the threaded end is fixed to the fixing plate by a bolt.

10. The automatic cutting device capable of measuring length according to claim 9, characterized in that: The fixing plate and the disassembling plate are provided with strip holes corresponding to the limiting rods and extending along the radial direction thereof.

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