Handle special for security and protection of electric scissors

Abstract

The utility model relates to the technical field of garment processing auxiliary equipment, in particular to a special security handle for electric scissors, which is transversely mounted in the middle of the electric scissors and provided with a flat handle body, a holding groove is arranged below the handle, a fingerprint window is arranged on the side surface of the handle corresponding to the thumb of an operator, and a fingerprint sensor is embedded in the fingerprint window. The fingerprint sensor is connected to the fingerprint controller, a proximity switch is installed at the position, right opposite to the first web of an author, above the handle, and the fingerprint controller and the proximity switch are connected to a relay of the electric scissors. Fingerprint authorization starting and proximity switch off-hand power off are adopted, double insurance is achieved, a special person is specially used, a special machine is specially used for a pipe, and the flat human engineering handle solves the problem that a large-size cut piece is prone to slipping out of the hand when cut.

Description

Technical Field

[0001] The utility model relates to a device for cutting textile materials, in particular to a special safety handle for electric scissors. Background Art

[0002] The electric scissors used in garment processing, also known as straight knife electric scissors, vertical straight knife electric cloth cutting machine, cloth cutting machine, cutting machine or straight knife cutting machine, are suitable for batch cutting of stacked fabrics such as cotton, wool, linen, silk, chemical fiber, leather, etc. The reciprocating motion of the thin blade ensures a smooth cut, and can make small radius curve cutting, and can automatically sharpen the blade, with the advantages of low noise, stable operation, simple and efficient operation, etc. It is a cutting tool with large consumption and wide distribution in the garment industry, with more than 300 units in use in the applicant's and its cooperating workshops.

[0003] Existing electric scissors only have a simple mechanical switch function in terms of control. They operate at a high frequency (3000 circles / min). When they are improperly managed (inter-station) or improperly operated (the operator's hand enters the mechanical area), there is a safety risk of blade cuts or mechanical injuries.

[0004] Moreover, current electric scissors generally use cylindrical or teardrop-shaped rotating handles. When cutting large-sized pieces (such as trouser legs, back pieces, etc.), the operator's arm span is limited. When reaching a far point, the operator has to push the handle instead of lifting it to perform the cutting operation. The electric scissors are in a semi-out-of-control state during operation, which can easily cause the electric scissors to injure people or fall from the cutting table and be damaged and scrapped.

[0005] The applicant's equipment department discovered the above-mentioned technical problems during equipment maintenance, actively carried out research and development and technical improvements, and after repeated tests, obtained the present utility model.

[0006] Before applying for a patent after the research and development was finalized, a supplementary search revealed that CN221225536U disclosed an intelligent security system for an automatic knife sharpening and cutting machine. It improved the electric scissors as a whole. Although a fingerprint lock was added, the operator was required to wear special gloves to trigger the magnetic remote control switch. Multiple sets of control devices needed to be installed and many changes had to be made to the electric scissors circuit. The modification workload was large and the cost was high. After the modification, the operating instructions needed to be modified and the operating habits needed to be modified. Moreover, the problem of preventing the hands from slipping out of the hand of the present invention has not been solved. Summary of the invention

[0007] Purpose of the invention: In order to overcome the shortcoming of the existing teardrop-shaped handle of electric scissors that it is easy to slip out of the hands when handling large-sized pieces, improve the operational safety and controllability, and achieve dedicated use by one person and dedicated machine, the present invention designs a new structure of electric scissors special security handle, which is used to modify and upgrade the existing electric scissors to improve the safety of clothing cutting operations.

[0008] Technical solution: A special handle for electric scissors security is installed horizontally in the middle of the electric scissors, and has a flat handle body. The front part of the handle body has a block and a connecting device, the rear part of the handle body has a limit protrusion, and a palm grip is provided between the block and the limit protrusion. A fingerprint window is provided on the side of the handle corresponding to the position of the operator's thumb, and a fingerprint sensor is embedded in the fingerprint window. The fingerprint sensor is connected to a fingerprint controller, and a proximity switch is installed at the block facing the operator's tiger's mouth. The fingerprint controller and the proximity switch are connected to the relay in the control box of the electric scissors.

[0009] Preferably, the length of the handle body is 18-22 cm.

[0010] Preferably, a bearing is installed at the connection between the handle body and the electric scissors, allowing the operator's arm to form a certain angle with the electric scissors when cutting at different positions.

[0011] Preferably, the starting end of the handle body has a screw rod, and the middle part of the electric scissors has a thread matching the screw rod.

[0012] Preferably, the end of the handle body has an anti-slip groove.

[0013] When in use, the ergonomic handle shape improves the operability of the electric scissors. The head block allows the operator to quickly grasp and position the scissors. The limiters at both ends and the flat shape of the handle and the tail limit protrusion play a role in limiting the slipping / falling of the hands. The head limit allows the operator to hold it in a suitable and safe position. The fingerprint shape on the side of the handle corresponds exactly to the position of the operator's thumb, and the proximity switch on the top of the handle also corresponds exactly to the base of the operator's palm.

[0014] Beneficial effect: Compared with the prior art, the handle of the electric scissors of the present invention is equipped with a fingerprint recognition system at the thumb and a proximity switch at the base of the thumb, thus realizing fingerprint-authorized startup and power-off when the hands are removed, adding double insurance to the switch of the electric scissors and realizing dedicated use of the electric scissors by dedicated personnel and dedicated machine.

[0015] Moreover, all control devices are integrated on the handle, the circuit is simple and clear, and it is convenient to quickly modify and upgrade existing equipment. The equipment department of the production department can upgrade and transform the existing electric scissors, which can save equipment procurement costs to the greatest extent. The research and development cycle is short, and it is closer to the actual needs of the front line. It can be put into use quickly, and the operation is simple and intuitive. There is no need to change the existing operating habits and work instructions. Under the premise of not affecting the production rhythm, the occupational health and safety capabilities of the garment processing workshop are further improved.

[0016] The handle design overcomes the technical prejudice of the traditional teardrop shape in the electric scissors industry and redesigns the flat ergonomic handle. It not only allows the operator to hold it securely, so that the thumb and base of the thumb are placed exactly on the fingerprint sensor and proximity switch, but also solves the problem of easy slipping of the handle when cutting large-size pieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of an existing electric scissors and a handle thereof.

[0018] Figure 2 It is a structural schematic diagram of the electric scissors and the special handle for security in the embodiment of the utility model.

[0019] Figure 3 yes Figure 2 main view.

[0020] Figure 4 This is a simplified circuit diagram of the fingerprint control / proximity switch.

[0021] Figure numerals: 1. Electric scissors; 2. Water drop-shaped handle; 3. Special handle for security; 4. Fingerprint sensor; 5. Proximity switch; 31. Block; 32. Connecting device; 33. Palm grip; 34. Limiting protrusion; 35. Anti-slip groove. DETAILED DESCRIPTION

[0022] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0023] The special safety handle of this embodiment is a technical improvement project implemented by Huipu Machinery Equipment Department in the garment workshop. It is modified on the basis of the existing electric scissors 1. Figure 1 The teardrop-shaped handle 2 in the Figure 2 A special security handle 3 is provided, and a fingerprint sensor 4 is installed on the handle. A D100 fingerprint control system for commercially available fingerprint locks is directly purchased, and the original mechanical finger-dip switch of the electric scissors is replaced by a fingerprint control switch.

[0024] Will Figure 1 The existing water drop handle 1 is replaced by Figure 2 The special security handle 3 improves the operability of the electric scissors from an ergonomic perspective. The front block 31 allows the operator to quickly hold and position the scissors. The limit switches at both ends and the flat shape of the handle guide the operator's palm to a suitable and safe position when holding the scissors. The thumb faces the fingerprint sensor 4, the base of the thumb faces the proximity switch 5, and the rear limit protrusion 34 serves as a limit to prevent the scissors from slipping out of the hand / falling.

[0025] like Figure 3As shown, a special handle for electric scissors security is installed horizontally in the middle of the electric scissors and has a flat handle body. Among them, the front part of the handle body has a block 31 and a connecting device 32. The tail of the handle body has a limit protrusion 34. There is a palm grip 33 between the block 31 and the limit protrusion 34. A fingerprint window is opened on the side of the handle corresponding to the position of the operator's thumb. A fingerprint sensor 4 is embedded in the fingerprint window. The fingerprint sensor 4 is connected to the fingerprint controller. A proximity switch 5 is installed at the block 31, facing the position of the operator's tiger's mouth. The fingerprint controller and the proximity switch 5 are connected to the relay in the control box of the electric scissors. The signal input side of the relay is connected to the aforementioned control system, and the wiring of the original pull-out switch of the electric scissors is connected to the normally open contact and COM terminal of the relay.

[0026] For example, the length of the handle body is 18-22 cm. A bearing is installed at the connection between the handle body and the electric scissors, allowing the operator to form a certain angle between the arm and the electric scissors when cutting different positions.

[0027] like Figure 3 As shown, the end of the handle body has an anti-skid groove 35. The anti-skid groove 35 is used to further improve the stability of the operator holding the handle.

[0028] like Figure 4 As shown, the D100 fingerprint control system realizes fingerprint unlocking and power on / off:

[0029] The administrator (safety officer) authorizes the certified operator (cutter) to enter fingerprints. One fingerprint can only control one pair of electric scissors. The fingerprint unlocks the switch, making it easy to use a dedicated person for a dedicated machine. The module comes with a relay and has three modes for use:

[0030] Self-locking mode: Press the fingerprint window once to start the machine, press again to stop it

[0031] Electric mode: Press the fingerprint window to start the machine for 1 second and then stop. Press once to start the machine (the running time can be set from 1 second to 15 minutes)

[0032] Ignition mode: Press the fingerprint window to start the machine. The running time is equal to the finger pressing time. The machine will stop when the finger is released.

[0033] In order to achieve power off when the operator leaves the hand, a proximity switch 5 is installed above the operating handle, with a sensing distance of 0-5cm. When the operator holds the handle of the electric scissors within 5cm: the proximity switch is turned on (the red indicator light is on), the fingerprint module is powered, and the electric scissors are started after the fingerprint is entered. When the operator's hand is more than 5cm away from the handle of the electric scissors, the proximity switch is disconnected (the red indicator light is off), the fingerprint module is powered off, the control system is powered off, and the electric scissors are turned off.

[0034] Because the electric scissors are powered by 220VAC, and the D100 fingerprint control system and proximity switch are both powered by 12VDC, an AC-DC switching power supply module is installed in the shell at the original switch position of the electric scissors. The above fingerprint control system, proximity switch and switching power supply module are all purchased by the Equipment Department from commercially available standard modules.

[0035] When cutting large-sized pieces, the flat handle body has a length of 200 mm, and the anti-slip groove 35 design at the end of the handle ensures that the operator can not only apply pushing force to the handle when extending his arm, but also limit the tail end of the handle, so that it can be pulled back at any time, reducing the risk of the electric scissors falling or slipping out of the hand.

[0036] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementation modes. For those skilled in the art, any technical solutions formed by any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special handle for electric scissors security, which is horizontally installed in the middle of the electric scissors, characterized by: The electric scissors have a flat handle body, a block and a connecting device at the front of the handle body, a limiting protrusion at the rear of the handle body, a palm grip between the block and the limiting protrusion, a fingerprint window is provided on the side of the handle near the block position, a fingerprint sensor is embedded in the fingerprint window, the fingerprint sensor is connected to a fingerprint controller, a proximity switch is installed on the top surface of the handle near the block position, and the fingerprint controller and the proximity switch are connected to a relay in a control box of the electric scissors.

2. The electric scissors safety handle according to claim 1, characterized in that: The length of the handle body is 18-22cm.

3. The electric scissors safety handle according to claim 1, characterized in that: A bearing is installed at the connection between the handle body and the electric scissors.

4. The electric scissors safety handle according to claim 1, characterized in that: The connecting device is a screw rod protruding from the starting end of the handle body, and a thread matching the screw rod is provided in the middle of the electric scissors.

5. The electric scissors safety handle according to claim 1, characterized in that: The end of the handle body is provided with an anti-slip groove.

6. The electric scissors safety handle according to claim 1, characterized in that: A 12V switching power supply module is installed in the housing of the electric scissors, the AC input end of the switching power supply module is connected to the power line of the electric scissors, and the output end of the switching power supply is connected to the power supply end of the fingerprint controller and the relay.

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