Portable electric rubber tapping machine

Abstract

The utility model provides a portable electric rubber tapping machine. The portable electric rubber tapping machine comprises a movable part and a detection part, the movable part is used for mounting a tool apron, a driving part can apply driving force to the movable part, and the detection part is electrically connected with the driving part. According to the scheme design, a detection device used for detecting the moving position of a transmission block located on the movable part in real time is arranged in the portable electric rubber tapping machine; when a user presses a cutter against bark and a movable rod is stressed to move to enable a transmission block in a clutch structure to be close to a cam until the transmission block is in a specified range in contact with the cam, a detection device sends a signal to a control panel of a driving motor, the driving motor drives the cam to rotate, the equipment does not work, and the movable rod does not move by external force; and when the transmission block is not in the specified range, the detection device does not send a signal, and the driving motor does not work, so that the condition of energy waste caused by continuous idling of the equipment under the non-working condition is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of electric tool structures, in particular to a portable electric rubber tapping machine. Background Art

[0002] Power tools are widely used in the natural rubber harvesting process. These tools are often equipped with a main switch. When the main switch is turned on during rubber tapping, the power tool's motor rotates continuously. The motor is connected to the rubber cutter via a clutch mechanism. When tapping natural rubber, the user holds the power tool (also known as a tapping machine) and turns on the main switch. The motor outputs driving force to the rubber cutter to cut the bark. When the rubber cutter is no longer in contact with the bark, the clutch mechanism disconnects the motor from the cutter, causing the motor to idle. This idling wastes energy, and the battery pack has limited storage capacity, which inadvertently shortens the harvesting time. Furthermore, the motor's continuous idling reduces its service life. Utility Model Content

[0003] The utility model aims to provide a portable electric rubber tapping machine to solve the problems of energy waste and short service life of the equipment caused by the idling state of the motor inside the rubber tapping machine in the prior art.

[0004] To achieve the above object, the utility model provides a portable electric rubber tapping machine, comprising:

[0005] case,

[0006] A movable portion, the movable portion is movably disposed in the housing, and a first end of the movable portion can extend out of the housing, the movable portion includes a tool holder for mounting a tool,

[0007] a driving portion, the driving portion being disposed in the housing and configured to apply a driving force to the movable portion;

[0008] The detection part is electrically connected to the driving part, and the detection part is configured to send a signal to the driving part based on the position of the movable part, wherein the signal is used by the detection part to control the driving part to be energized so as to apply a driving force to the movable part.

[0009] Furthermore, the moving route of the movable part includes a first area and a second area, the first area is close to the driving part, and the second area is located on the side of the first area away from the driving part.

[0010] The driving part includes a driving motor and a control module (such as a control circuit board inside the driving motor), the control module is electrically connected to the detection part, the control module is used to control the driving motor, and the driving motor is used to apply driving force to the movable part.

[0011] The movable portion is configured to be in the first area, the detection portion sends a signal to the control module, and the control module controls the driving motor to be powered on and rotate.

[0012] The movable portion is configured to be in the second area, the detection portion does not send a signal to the control module, and the drive motor is powered off and stops rotating.

[0013] Furthermore, the detection unit includes a Hall switch, and the Hall switch is electrically connected to the control module.

[0014] The Hall switch includes an induction head, and the induction head is provided with a first magnetic pole.

[0015] The movable portion includes a positioning post located at a second end of the movable portion, and the positioning post is provided with a second magnetic pole corresponding to the first magnetic pole.

[0016] The movable portion is configured to be in a first region, the magnetic field strength between the first magnetic pole and the second magnetic pole is a first magnetic field strength, the Hall switch sends a signal to the control module, and the control module controls the drive motor to be energized and rotate;

[0017] The movable portion is configured to be in the second region, the magnetic field strength between the first magnetic pole and the second magnetic pole is the second magnetic field strength, the Hall switch does not send a signal to the control module, and the drive motor is powered off and stops rotating.

[0018] Furthermore, the detection unit includes a spring, one end of the spring abuts against the housing of the portable electric rubber tapping machine, and the other end of the spring abuts against the Hall switch.

[0019] Furthermore, a guide block is fixedly installed in the housing of the portable electric rubber tapping machine, and a groove rail is provided on the guide block that coincides with the moving route of the positioning column, and the positioning column is inserted into the groove rail from the notch of the groove rail.

[0020] Furthermore, a via hole is provided on the guide block, the via hole is connected to the groove rail, and the induction head of the Hall switch passes through the via hole and enters the groove rail.

[0021] Furthermore, the portable electric rubber tapping machine also includes:

[0022] a transmission block provided at the second end of the movable portion,

[0023] a cam provided at the first end of the driving portion,

[0024] A convex surface is provided on a surface of the cam close to the transmission block. When the cam rotates, the convex surface pushes the transmission block to move toward a side away from the cam.

[0025] Furthermore, the cam is connected to the driving motor, and the driving motor drives the cam to rotate when powered.

[0026] Further, the movable portion is configured to be in a first area, and the cam pushes the transmission block to move toward a side away from the cam.

[0027] Furthermore, the detection unit includes a micro switch, and the micro switch is electrically connected to the control module.

[0028] The micro switch includes contacts,

[0029] The movable portion includes a positioning post located at the second end of the movable portion,

[0030] The movable portion is configured to be located in the first area, the positioning column triggers the contact, the micro switch sends a signal to the control module, and the control module controls the driving motor to be energized and rotated;

[0031] The movable portion is configured to be in the second area, the positioning column is not in contact with the contact, the micro switch does not send a signal to the control module, and the drive motor is powered off and stops rotating.

[0032] When the portable electric rubber tapping machine designed in this solution is in use, when the user holds the tapping machine and presses the tool against the bark, the pressure generated by the bark surface can cause the movable rod to move backward, and the movable rod moves backward and gradually approaches the cam. When the movable rod moves to the first area, the first area is the movement range of the transmission block at the rear end of the movable rod from the position close to the cam to the contact with the cam. At the moment when the movable rod enters the first area, the detection sensor sends a signal to the control board of the motor, the motor is powered on and starts to rotate, the motor drives the rotating shaft to rotate, and the rotating shaft drives the cam to rotate. The convex surface on the cam can push the transmission block forward when the cam rotates, thereby causing the movable rod to move forward with the tool to cut the bark. Since the user needs to keep the tool against the bark during the entire tapping process, the motor is in a continuous working state. When the tapping is completed, the pressure generated by the bark is removed. At this time, after the cam pushes the transmission block forward for the last time, because there is no reverse force, the transmission block no longer moves backward to contact the cam, and the force generated by the spring return on the movable rod can make the transmission block move away from the cam, so that the transmission block is no longer in the first area, and the motor is powered off and stops working.

[0033] The advantages of this utility model are as follows:

[0034] The portable electric rubber tapping machine designed in this scheme is provided with a detection device for detecting the moving position of the transmission block on the movable part in real time inside the rubber tapping machine. When the equipment is working, the user presses the cutter against the bark, and the movable rod is forced to move so that the transmission block in the clutch structure is close to the cam until it is within the specified range of contact with the cam. The detection device sends a signal to the control board of the drive motor, and the drive motor drives the cam to rotate. When the equipment is not working, the movable rod is not moved by external force, and the transmission block is not within the above-mentioned specified range, the detection device does not send a signal and the drive motor does not work, thereby effectively avoiding the situation where the equipment continues to idle when not working and causes energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 The figure is a schematic diagram of the internal structure of a portable electric rubber tapping machine according to an embodiment of the present invention.

[0037] Figure 2 The working state of the Hall switch of the portable electric rubber tapping machine according to another embodiment of the present invention Figure 1 .

[0038] Figure 3 Another embodiment of the portable electric rubber tapping machine of the present invention uses a Hall switch working state Figure 2 .

[0039] Figure 4 The portable electric rubber tapping machine of another embodiment of the present invention uses a micro switch working state Figure 1 .

[0040] Figure 5 The portable electric rubber tapping machine of another embodiment of the present invention uses a micro switch working state Figure 2 .

[0041] The components in the figure are shown as follows:

[0042] 1. Housing; 2. Movable rod; 3. Blade holder; 4. Drive motor; 5. Rotating shaft; 6. Cam; 7. Transmission block; 8. Hall switch; 81. Sensor head; 9. Positioning column; 10. Spring; 11. Guide block; 12. Groove rail; 13. Contact; 14. Control module. DETAILED DESCRIPTION

[0043] The following describes preferred embodiments of the present invention with reference to the accompanying drawings to demonstrate that the present invention can be implemented. These embodiments can fully introduce the present invention to those skilled in the art, making the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the scope of protection of the present invention is not limited to the embodiments described herein.

[0044] In the drawings, components with identical structures are denoted by the same reference numerals, and components with similar structures or functions are denoted by similar reference numerals. The dimensions and thicknesses of each component shown in the drawings are arbitrary and are not limited by the present invention. For clarity, the thicknesses of components in some places in the drawings are exaggerated.

[0045] In addition, the following descriptions of the various embodiments of the present invention are made with reference to the accompanying drawings to illustrate specific embodiments of the present invention that may be implemented. Directional terms mentioned in the present invention, such as "upper," "lower," "front," "back," "left," "right," "inner," "outer," and "side," are merely referenced to the directions of the accompanying drawings. Therefore, the directional terms used are intended to better and more clearly illustrate and understand the present invention, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] When some components are described as being "on" another component, the component may be directly placed on the other component; there may also be an intermediate component with the component placed on the intermediate component, and the intermediate component placed on the other component. When a component is described as being "mounted to" or "connected to" another component, the two can be understood to be directly "mounted" or "connected" or indirectly "mounted to" or "connected to" the other component through an intermediate component.

[0047] Example:

[0048] This embodiment provides a rubber tapping machine, such as Figure 1 As shown, the rubber tapping machine includes:

[0049] Shell 1,

[0050] The movable part includes a movable rod 2 that can reciprocate in the housing 1, and a knife seat 3 is provided at the front end of the movable rod 2. The knife seat 3 is used to install a knife;

[0051] The driving part includes a driving motor 4 and a rotating shaft 5. A control board is provided inside the driving motor 4.

[0052] A cam 51 is provided at the front end of the rotating shaft 5. The cam 6 and the rotating shaft 5 are an integral structure.

[0053] A transmission block 7 corresponding to the cam 6 is provided at the rear end of the movable rod 2.

[0054] When the cam 6 contacts the transmission block 7, the cam 6 rotates, and the convex surface on the cam 6 can push the transmission block 7 forward, thereby causing the movable rod 2 to move forward with the cutter to cut the bark;

[0055] Detection unit, the detection unit includes a Hall switch 8, the Hall switch 8 includes a sensing head,

[0056] The end of the induction head extending outward is provided with a first magnetic pole, and the lower end of the positioning column 9 extending outward from the transmission block 7 is provided with a second magnetic pole corresponding to the first magnetic pole. A magnetic field is generated between the first magnetic pole and the second magnetic pole. Figure 2 and Figure 3 As shown, when using the Hall switch, a threshold value N of the magnetic field strength is set. As the positioning column 9 moves with the second magnetic pole, the distance between the first magnetic pole and the second magnetic pole changes, and thus the magnetic field strength between the two magnetic poles changes. When the transmission block 7 gradually approaches the cam 6 and enters the first area (the area between point A and point B), the magnetic field strength between the two magnetic poles is less than N. The Hall switch (Hall sensor) sends a signal to the control board of the drive motor, and the drive motor is powered on and rotates. The rotation of the drive motor drives the cam 6 to rotate. The cam 6 rotates, and the convex surface on the cam 6 can push the transmission block 7 forward, thereby causing the movable rod 2 to move forward with the tool to cut the bark; and when the transmission block 7 is in the second area (the area between point A and point C), the magnetic field strength between the two magnetic poles is greater than N, the Hall switch does not send a signal, and the drive motor is powered off.

[0057] In some embodiments, as Figure 1 As shown, the detection part further includes a spring 10, one end of the spring 10 rests against the housing 1 of the rubber tapping machine, and the other end of the spring 10 rests against the micro switch 8, and the spring 10 can play a buffering role.

[0058] In some embodiments, as Figure 1 As shown, the rubber tapping machine also includes a guide block 11, which is fixedly installed in the housing 1 of the rubber tapping machine. The guide block 11 is provided with a groove rail 12 that coincides with the moving path of the positioning column 9, and the positioning column 9 is inserted into the groove rail 12 from the notch of the groove rail 12; the guide block 11 is provided with a through hole, which is connected to the groove rail 12, and the sensing head 81 of the Hall switch 8 passes through the through hole and enters the groove rail 12.

[0059] In some embodiments, the length of the groove rail 12 is calculated in advance. When the transmission block 7 contacts the cam 6, the positioning column 9 extending from the transmission block 7 just rests on the inner groove wall surface of the groove rail 12 to play a limiting role.

[0060] In some embodiments, the detection unit includes a micro switch, and the micro switch includes a contact 13.

[0061] like Figure 4 and Figure 5 As shown, when the transmission block 7 gradually approaches the cam 6 and enters the first area (the area between point A and point B), the contact 13 contacts the positioning column 9, the positioning column triggers the contact, and the micro switch sends a signal to the control module 14 (also called the control board) of the drive motor. The drive motor is powered on and rotates, and the rotation of the drive motor drives the cam 6 to rotate. The cam 6 rotates, and the convex surface on the cam 6 can push the transmission block 7 forward, thereby causing the movable rod 2 to move forward with the tool to cut the bark; and when the transmission block 7 is in the second area (the area between point A and point C), the positioning column does not contact the contact, the micro switch does not send a signal, and the drive motor is powered off and stops rotating.

[0062] It should be noted that the detection portion in the above embodiment includes a micro sensor (micro switch) or a Hall sensor (Hall switch), but is not limited thereto and may also include other sensors or other detection devices that can achieve the same or similar functions.

[0063] It should be noted that there may be deviations when the movable rod 2 moves (reciprocating) in the shell 1. A margin is left when the first area is set to avoid erroneous operation of the micro sensor (micro switch) or Hall sensor detection during use and avoid false triggering of the motor.

[0064] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It should be understood that many modifications may be made to the illustrative embodiments, and that other arrangements may be devised, without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in ways other than those described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be employed in conjunction with other described embodiments.

Claims

1. A portable electric rubber tapping machine, characterized in that: include: case, A movable portion, the movable portion is movably disposed in the housing, and a first end of the movable portion can extend out of the housing, the movable portion includes a tool holder for mounting a tool, A driving part, which is arranged in the shell and is used to apply a driving force to the movable part; a detection part, which is electrically connected to the driving part and is configured to send a signal to the driving part based on the position of the movable part, and the signal is used by the detection part to control the driving part to be energized so as to apply a driving force to the movable part.

2. The portable electric rubber tapping machine according to claim 1, wherein The moving route of the movable part includes a first area and a second area, the first area is close to the driving part, and the second area is located on the side of the first area away from the driving part. The driving part includes a driving motor and a control module. The control module is electrically connected to the detection part and is used to control the driving motor. The driving motor is used to apply driving force to the movable part. The movable portion is configured to be in the first area, the detection portion sends a signal to the control module, and the control module controls the driving motor to be powered on and rotate. The movable portion is configured to be in the second area, the detection portion does not send a signal to the control module, and the drive motor is powered off and stops rotating.

3. The portable electric rubber tapping machine according to claim 1 or 2, wherein The detection unit includes a Hall switch, and the Hall switch is electrically connected to the control module. The Hall switch includes an induction head, and the induction head is provided with a first magnetic pole. The movable portion includes a positioning post located at a second end of the movable portion, and the positioning post is provided with a second magnetic pole corresponding to the first magnetic pole. The movable part is constructed to be in a first area, the magnetic field strength between the first magnetic pole and the second magnetic pole is a first magnetic field strength, the Hall switch sends a signal to the control module, and the control module controls the drive motor to be powered on and rotate; the movable part is constructed to be in a second area, the magnetic field strength between the first magnetic pole and the second magnetic pole is a second magnetic field strength, the Hall switch does not send a signal to the control module, and the drive motor is powered on and stops rotating.

4. The portable electric rubber tapping machine according to claim 3, wherein The detection part includes a spring, one end of the spring abuts against the housing of the portable electric rubber tapping machine, and the other end of the spring abuts against the Hall switch.

5. The portable electric rubber tapping machine according to claim 3, characterized in that It also includes a guide block, which is fixedly installed in the housing of the portable electric rubber tapping machine. The guide block is provided with a groove track that coincides with the moving route of the positioning post, and the positioning post is inserted into the groove track.

6. The portable electric rubber tapping machine according to claim 5, characterized in that The guide block is provided with a via hole, the via hole is connected to the groove rail, and the induction head of the Hall switch passes through the via hole and enters the groove rail.

7. The portable electric rubber tapping machine according to claim 2, characterized in that Also includes a transmission block provided at the second end of the movable portion, and a cam provided at the first end of the driving portion, The surface of the cam close to the transmission block is provided with a convex surface, The rotation of the cam drives the convex surface to rotate, and the rotation of the convex surface further pushes the transmission block abutting against the cam to move away from the cam.

8. The portable electric rubber tapping machine according to claim 7, wherein The cam is connected to the driving motor, and the driving motor is energized to drive the cam to rotate.

9. The portable electric rubber tapping machine according to claim 7, wherein The movable portion is configured to be in a first region, and the cam pushes the transmission block to move toward a side away from the cam.

10. The portable electric rubber tapping machine according to claim 2, characterized in that, The detection unit includes a micro switch, and the micro switch is electrically connected to the control module. The micro switch includes contacts, The movable portion includes a positioning post located at the second end of the movable portion, The movable portion is configured to be located in the first area, the positioning column triggers the contact, the micro switch sends a signal to the control module, and the control module controls the driving motor to be energized and rotated; The movable portion is configured to be in the second area, the positioning column is not in contact with the contact, the micro switch does not send a signal to the control module, and the drive motor is powered off and stops rotating.

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