Chamfering machine for plastic roll core pipe

Abstract

The utility model discloses a plastic roll core pipe chamfering machine which comprises a machine base, a clamping mechanism and a chamfering device are installed on the machine base, the chamfering device comprises a fixed base, a driving sleeve is axially installed on the fixed base in a sliding mode, a driving main shaft is installed in the driving sleeve in a rotating mode, and a chamfering cutter is fixedly installed on the driving main shaft. A driving wheel is rotationally mounted on the fixed base, and the driving main shaft and the driving wheel are in sliding and rotating power fit through a spline at the same time; a main shaft driving power device for driving the main shaft to rotate is fixedly mounted on the fixed base, a sliding power device for driving the driving sleeve to axially slide is further mounted on the machine base, and the sliding power device is in transmission fit with the driving sleeve to enable the driving sleeve to drive the driving main shaft to slide between a chamfering station and a standby station; according to the chamfering machine, it can be guaranteed that the positions of the ends of pipes are consistent, the cutting amount can be accurately controlled, and therefore the chamfering quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of core roll tube chamfering, in particular to a plastic core roll tube chamfering machine. Background Art

[0002] A core tube is a cylindrical tube used to wrap around soft materials such as paper rolls or fabrics to provide support. Core tubes are primarily divided into two types: paper core tubes and plastic core tubes. Core tubes are typically tailored to the width of the paper roll or fabric, so long core tubes are typically cut into several smaller sections. However, the end surfaces of the cut core tubes often have numerous burrs, which can affect the winding of the paper roll or fabric. Therefore, the ends of the core tubes need to be chamfered.

[0003] The utility model with publication number CN 216029528 U discloses a device for chamfering an aluminum foil coil core tube. The core tube chamfering machine uses a tube clamp support device to move to a suitable position and then fix it. Then, when chamfering, the tube is placed between the clamp seats of the tube clamp support device and clamped. Then, the chamfering device chamfers the end of the tube. However, this solution still has the following shortcomings: 1. The position where the tube extends into the chamfer during chamfering by the tube chamfering device is uncontrollable, resulting in inconsistent quality of the chamfer of the tube end; 2. The chamfering cutting amount of the tube chamfering device is difficult to control. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a plastic core tube chamfering machine, which can ensure the consistent position of the tube ends and accurately control the cutting amount, thereby improving the chamfering quality.

[0005] The camming mechanism that this invention relates to is that this invention relates to a plastics reel tube chamfering machine, comprising a base, a clamping mechanism for clamping the plastics reel tube and a chamfering device for chamfering the end portion of the plastics reel tube. The chamfering device comprises a fixed base fixed to the base, a driving sleeve slidably mounted on the fixed base, a driving spindle rotatably mounted on the driving sleeve, and a chamfering tool is fixedly mounted on the driving spindle on a side close to the clamping mechanism. The fixed base is rotatably mounted on the driving spindle, and the driving spindle and the driving wheel are simultaneously powered by splines to achieve sliding and rotating power cooperation; a spindle driving power device that drives the driving spindle to rotate is fixedly mounted on the fixed base, and a sliding power device that drives the driving sleeve to slide axially is also installed on the base. The sliding power device cooperates with the driving sleeve to drive the driving sleeve to drive the driving spindle to slide between the chamfering station and the standby station;

[0006] A positioning device for positioning the end of the plastic winding core tube is also installed on the machine base.

[0007] As a preferred solution, mounting step holes are respectively provided at both ends of the drive sleeve, a bearing is fixedly installed in each mounting step hole, and the drive spindle is installed on the bearings.

[0008] As a preferred solution, the sliding power device includes a first cylinder, which is fixed on the machine base, a driving connecting rod is fixed on the driving sleeve, and a strip hole is provided on the fixed base for the driving connecting rod to pass through. The driving connecting rod passes through the strip hole and is hinged to the piston rod of the first cylinder.

[0009] As a preferred solution, a limiting device for limiting the sliding position of the driving connecting rod is also installed on the machine base and the fixed base.

[0010] As a preferred solution, the limit device includes a standby limit switch and a chamfer limit switch. The standby limit switch is fixed on the fixed base and contacts with the drive connecting rod. The chamfer limit switch is fixed on the machine base through a connecting piece with an axially extending adjustment hole. The piston rod of the first cylinder passes through the cylinder body of the first cylinder and is fixedly installed with a limit plate. The limit plate contacts with the chamfer limit switch.

[0011] As a preferred solution, the positioning device includes a positioning plate installed on the machine base in a transverse sliding manner. The positioning plate is driven by a second cylinder to slide between the positioning position and the avoidance position. When the positioning plate is in the positioning position, it partially blocks the pipe passing area between the clamping mechanism and the chamfering device.

[0012] As a preferred solution, a avoidance limit switch is fixedly mounted on the machine base, and a avoidance limit plate portion cooperating with the avoidance limit switch is provided on the positioning plate.

[0013] As a preferred solution, the clamping mechanism includes a clamping seat fixed on the machine base, on which a lower clamping block is fixedly installed and an upper clamping block is vertically slidably installed, a clamping area for convenient clamping of pipes is formed between the lower clamping block and the upper clamping block, and a clamping power device for driving the upper clamping block to slide vertically is fixedly installed on the clamping seat.

[0014] As a preferred solution, an upper clamping mouth and a lower clamping mouth are detachably fixed on the upper clamping block and the lower clamping block respectively, and the upper clamping mouth and the lower clamping mouth are respectively provided with arc-shaped clamping grooves.

[0015] After adopting the above technical scheme, the effect of the utility model is as follows: since the plastic core tube chamfering machine includes a machine base, the machine base is equipped with a clamping mechanism for clamping the plastic core tube and a chamfering device for chamfering the end of the core tube, the chamfering device includes a fixed base fixed to the machine base, a driving sleeve is axially slidably installed on the fixed base, and a driving spindle is rotatably installed in the driving sleeve, and a chamfering tool is fixedly installed on the driving spindle on a side close to the clamping mechanism, and the fixed base is rotatably equipped with a driving wheel, and the driving spindle and the driving wheel are simultaneously powered by a spline to achieve sliding and rotating; a spindle driving power device that drives the driving spindle to rotate is fixedly installed on the fixed base, and a sliding power device that drives the driving sleeve to slide axially is also installed on the machine base, and the sliding power device cooperates with the driving sleeve to transmit The driving sleeve drives the driving spindle to slide between the chamfering station and the standby station; a positioning device for positioning the end of the plastic core tube is also installed on the machine base. Therefore, compared with the background technology, the plastic core tube chamfering machine has the following advantages: 1. The chamfering machine is provided with a positioning device for positioning the end of the plastic core tube, which is clamped by a clamping mechanism after positioning, and the tube will not be displaced at this time; 2. The chamfering machine uses a sliding power device to drive the driving sleeve to slide axially, and then drives the driving spindle to slide axially to achieve feed close to the positioned end of the tube, and the axial movement of the driving sleeve will drive the axial movement of the driving spindle. Due to the spline connection between the driving spindle and the driving wheel, the driving spindle can be driven to rotate while moving axially, thereby achieving chamfering. Since the tube end has been positioned, the cutting amount can be controlled each time the tube is chamfered to ensure the consistency of the chamfering quality.

[0016] Furthermore, since the sliding power device includes a first cylinder, the first cylinder is fixed on the machine base, a driving connecting rod is fixed on the driving sleeve, and a strip hole is provided on the fixed base for the driving connecting rod to pass through, the driving connecting rod passes through the strip hole and is hinged to the piston rod of the first cylinder, the sliding power device can accurately drive the driving connecting rod to slide axially.

[0017] Furthermore, since the machine base and the fixed base are also equipped with a limit device for limiting the sliding position of the driving connecting rod. The limit device includes a standby limit switch and a chamfer limit switch. The standby limit switch is fixed on the fixed base and contacts with the driving connecting rod. The chamfer limit switch is fixed to the machine base through a connecting piece with an axially extending adjustment hole. The piston rod of the first cylinder passes through the cylinder body of the first cylinder and is fixedly installed with a limit disk. The limit disk contacts with the chamfer limit switch. Therefore, the axial sliding stroke of the driving spindle can be better controlled by the standby limit switch and the chamfer limit switch. In particular, the chamfer limit switch is fixed to the machine base through a connecting piece with an axially extending adjustment hole. Therefore, the fixed position of the chamfer limit switch is within the axial length range of the adjustment hole.

[0018] Furthermore, since the positioning device includes a positioning plate that is laterally slidably mounted on the machine base, the positioning plate is driven by a second cylinder to slide between the positioning position and the avoidance position. When the positioning plate is in the positioning position, it partially blocks the pipe passage area between the clamping mechanism and the chamfering device. Therefore, when the plastic core tube is inserted, the positioning plate will slide to the positioning position and block the pipe passage area, so that the end of the pipe will contact the positioning plate, thereby accurately positioning it. After positioning, the positioning plate retreats to the avoidance position for avoidance without hindering the chamfering action.

[0019] Since the upper clamping block and the lower clamping block are respectively detachably fixed with an upper clamping jaw and a lower clamping jaw, and the upper clamping jaw and the lower clamping jaw are respectively provided with arc-shaped clamping grooves, different sizes of pipes can be clamped by replacing different upper clamping jaws and lower clamping jaws. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0022] Figure 2 This is a schematic structural diagram from another angle of an embodiment of the utility model;

[0023] Figure 3 yes Figure 2 Left view of;

[0024] Figure 4 yes Figure 3 Sectional view of the structure along AA;

[0025] In the attached figure: 1. Machine base; 2. Fixed base; 3. Drive sleeve; 4. Drive spindle; 5. Chamfering tool; 6. Drive wheel; 7. Spline; 8. Spindle drive power unit; 9. Mounting step hole; 10. First cylinder; 11. Drive connecting rod; 12. Bar hole; 13. Standby limit switch; 14. Chamfering limit switch; 15. Limit plate; 16. Positioning plate; 17. Second cylinder; 18. Avoidance limit switch; 19. Clamping seat; 20. Upper clamping block; 21. Lower clamping block; 22. Upper clamping jaw; 23. Lower clamping jaw. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below through specific embodiments.

[0027] like Figure 1-4 As shown, a plastic core tube chamfering machine includes a machine base 1, on which a clamping mechanism for clamping the plastic core tube and a chamfering device for chamfering the end of the core tube are installed. The chamfering device includes a fixed base 2 fixed on the machine base 1, a driving sleeve 3 is axially slidably installed on the fixed base 2, and a driving spindle 4 is rotatably installed in the driving sleeve 3, and a chamfering tool 5 is fixedly installed on the driving spindle 4 on the side close to the clamping mechanism, and a driving wheel 6 is rotatably installed on the fixed base 2, and the driving spindle 4 and the driving wheel 6 are simultaneously powered by a spline 7 to achieve sliding and rotating power coordination; a spindle driving power device 8 that drives the driving spindle 4 to rotate is fixedly installed on the fixed base 2, and a sliding power device that drives the driving sleeve 3 to slide axially is also installed on the machine base 1, and the sliding power device and the driving sleeve 3 are matched in transmission so that the driving sleeve 3 drives the driving spindle 4 to slide between the chamfering station and the standby station; a positioning device for positioning the end of the plastic core tube is also installed on the machine base 1.

[0028] In this embodiment, the positioning device includes a positioning plate 16 that is laterally slidably mounted on the machine base 1. This plate 16 is driven by a second cylinder 17 to slide between a positioning position and an avoidance position. When in the positioning position, this plate 16 partially blocks the pipe passage area between the clamping mechanism and the chamfering device. A avoidance limit switch 18 is also fixedly mounted on the machine base 1. The positioning plate 16 is provided with an avoidance limit plate portion that cooperates with this limit switch 18.

[0029] In this embodiment, the sliding power device includes a first cylinder 10, which is fixed to the base 1. A driving connecting rod 11 is fixed to the driving sleeve 3. The fixed base 2 is provided with a strip hole 12 for convenient passage of the driving connecting rod 11. The driving connecting rod 11 passes through the strip hole 12 and is hingedly connected to the piston rod of the first cylinder 10. The driving sleeve 3 is provided with mounting step holes 9 at both ends. A bearing is fixedly installed in each mounting step hole 9, and the driving spindle 4 is mounted on these bearings.

[0030] In this embodiment, a limit device for limiting the sliding position of the drive connecting rod 11 is also installed on the machine base 1 and the fixed base 2. The limit device includes a standby limit switch 13 and a chamfer limit switch 14. The standby limit switch 13 is fixed to the fixed base 2 and contacts the drive connecting rod 11. The chamfer limit switch 14 is fixed to the machine base 1 via a connecting piece with an axially extending adjustment hole. The piston rod of the first cylinder 10 passes through the cylinder body of the first cylinder 10 and is fixedly mounted with a limit plate 15. The limit plate 15 contacts the chamfer limit switch 14.

[0031] In this embodiment, the clamping mechanism includes a clamping base 19 fixed to the machine base 1. A lower clamping block 21 is fixedly mounted on the clamping base 19, and an upper clamping block 20 is vertically slidably mounted thereon. A clamping area for conveniently clamping the pipe is formed between the lower clamping block 21 and the upper clamping block 20. A clamping power device is fixedly mounted on the clamping base 19 to drive the upper clamping block 20 to slide vertically. An upper clamping jaw 22 and a lower clamping jaw 23 are detachably fixed to the upper clamping block 20 and the lower clamping jaw 21, respectively. Each of the upper clamping jaw 22 and the lower clamping jaw 23 is provided with an arc-shaped clamping groove.

[0032] When in use, the present application provides a plastic core tube chamfering machine that first positions the end of the plastic core tube through the positioning device. When the plastic core tube is inserted, the second cylinder 17 drives the positioning plate 16, and the positioning plate 16 will slide to the positioning position to block the pipe from passing through the area, so that the end of the pipe will contact the positioning plate 16, thereby accurately positioning. After positioning, the positioning plate 16 retreats to the avoidance position to avoid it without hindering the next chamfering action. After positioning, the upper clamping jaw 22 and the lower clamping jaw 23 of the clamping mechanism clamp the pipe, and at this time the pipe will not be deformed. Then, the first cylinder 10 of the sliding power device is used to drive the driving sleeve 3 to slide axially, and then the driving spindle 4 is driven to slide axially to realize the feed close to the end of the pipe that has been positioned. The driving spindle 4 is connected to the driving wheel 6 by a spline 7. The driving spindle 4 can be driven to rotate by the spindle driving power device 8 while moving axially, thereby realizing chamfering. Moreover, the axial sliding stroke of the driving spindle 4 can be better controlled by the standby limit switch 13 and the chamfering limit switch 14, so the chamfering machine can control the cutting amount each time it chamfers.

[0033] In addition, the clamping of pipes of different sizes can be adapted by replacing different upper clamping jaws 22 and lower clamping jaws 23. The main shaft driving power device 8 can be a motor, or other power devices can be selected according to needs.

[0034] The air circuit system, actuators such as servo motors, gear transmission mechanisms, and lead screw and nut mechanisms mentioned in this embodiment are all current conventional technologies. The specific structures and principles and other designs of the cylinders, motors, and other transmission mechanisms are disclosed in detail in the "Mechanical Design Manual, Fifth Edition", the 28th printing of the fifth edition in Beijing in April 2008, which belongs to the existing technology and its structure is clear. The SMC training textbook "Modern Practical Pneumatic Technology, 3rd Edition" published by the Machinery Industry Press on August 1, 2008 discloses in detail the vacuum components, gas circuits, and program control, indicating that the air circuit structure in this embodiment is also existing technology and is clear. The book "Motor Drive and Speed ​​Regulation" published by the Chemical Industry Press on July 1, 2015 also introduces the control of the motor and the travel switch in detail. Therefore, the circuit and air circuit connections are clear.

[0035] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Various modifications and alterations to the technical solutions of the present invention, without departing from the spirit of the present invention, should fall within the scope of protection defined in the claims of the present invention.

Claims

1. A plastic core tube chamfering machine, comprising a machine base, on which are mounted a clamping mechanism for clamping the plastic core tube and a chamfering device for chamfering the end of the core tube, characterized in that: The chamfering device includes a fixed base fixed to the machine base, a driving sleeve axially slidably installed on the fixed base, a driving spindle rotatably installed in the driving sleeve, and a chamfering tool is fixedly installed on the driving spindle on one side close to the clamping mechanism, and the fixed base is rotatably mounted, and the driving spindle and the driving wheel are simultaneously matched with each other for sliding and rotating by a spline; a spindle driving power device that drives the driving spindle to rotate is fixedly installed on the fixed base, and a sliding power device that drives the driving sleeve axially sliding is also installed on the machine base, and the sliding power device is matched with the driving sleeve to drive the driving sleeve to drive the driving spindle to slide between the chamfering station and the standby station; A positioning device for positioning the end of the plastic winding core tube is also installed on the machine base.

2. A plastic core tube chamfering machine according to claim 1, characterized in that: Both ends of the driving sleeve are respectively provided with mounting step holes, a bearing is fixedly installed in each mounting step hole, and the driving main shaft is installed on the bearings.

3. A plastic core tube chamfering machine according to claim 2, characterized in that: The sliding power device includes a first cylinder, which is fixed on the machine base. A driving connecting rod is fixed on the driving sleeve. A strip hole is provided on the fixed base for the driving connecting rod to pass through. The driving connecting rod passes through the strip hole and is hinged to the piston rod of the first cylinder.

4. A plastic core tube chamfering machine according to claim 3, characterized in that: The machine base and the fixed base are also provided with a limiting device for limiting the sliding position of the driving connecting rod.

5. A plastic core tube chamfering machine according to claim 4, characterized in that: The limit device includes a standby limit switch and a chamfer limit switch. The standby limit switch is fixed on the fixed base and contacts with the drive connecting rod. The chamfer limit switch is fixed on the machine base through a connecting piece with an axially extending adjustment hole. The piston rod of the first cylinder passes through the cylinder body of the first cylinder and is fixedly installed with a limit plate. The limit plate contacts with the chamfer limit switch.

6. The plastic core tube chamfering machine according to claim 1, characterized in that: The positioning device includes a positioning plate installed on the machine base for transverse sliding. The positioning plate is driven by a second cylinder to slide between the positioning position and the avoidance position. When the positioning plate is in the positioning position, it partially blocks the pipe passing area between the clamping mechanism and the chamfering device.

7. A plastic core tube chamfering machine according to claim 6, characterized in that: A avoidance limit switch is also fixedly mounted on the machine base, and a avoidance limit plate portion cooperating with the avoidance limit switch is provided on the positioning plate.

8. A plastic core tube chamfering machine according to claim 7, characterized in that: The clamping mechanism includes a clamping seat fixed on the machine base, a lower clamping block fixedly mounted on the clamping seat and an upper clamping block vertically slidably mounted thereon, a clamping area for conveniently clamping the pipe is formed between the lower clamping block and the upper clamping block, and a clamping power device for driving the upper clamping block to slide vertically is fixedly mounted on the clamping seat.

9. A plastic core tube chamfering machine according to claim 8, characterized in that: An upper clamping opening and a lower clamping opening are detachably fixed on the upper clamping block and the lower clamping block, respectively. The upper clamping opening and the lower clamping opening are respectively provided with arc-shaped clamping grooves.

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