Industrial scissors with protection device

Abstract

The utility model discloses industrial scissors with a protection device, and relates to the field of handheld cutting tools. Comprising a pair of pneumatic scissors and a protection device, the protection device is a transparent shell and is nested on the pneumatic scissors to wrap a tool bit of the pneumatic scissors, and a feeding end, a material collecting end, a discharging end and a scissors end are formed by plates in different shapes and used for protecting a user and collecting waste materials. The protection device which is transparent in material and resistant to impact is nested on the pneumatic scissors, the shell structure of the protection device wraps the tool bit to intercept splashing waste materials and guide the waste materials to the discharging port to be collected, and the remaining length of the trimmed pins is set through the integrated limiting plate. The problems of potential safety hazards and difficult waste collection caused by waste splashing during cutting of the pneumatic scissors are solved, and therefore the technical effects of providing protection measures for a user and collecting waste are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to handheld cutting tool field, especially a kind of industrial scissors with protective device. BACKGROUND

[0002] Handheld cutting tool is a kind of efficient cutting tool, is widely used in construction, decoration, handicraft making and metal processing and other fields.Various materials are rapidly cut, such as ceramic tile, stone, concrete, reinforcing steel and metal material, etc., by high-speed rotating sharp cutting disc, which significantly improves work efficiency.The technical features include various power supply modes such as single-phase series excitation and battery type, as well as dry and wet chip removal methods.In terms of safety, according to the national standard GB / T 39981-2021, handheld cutting machine must be designed with reliable protective measures, such as cutting saw blade protective cover, double insulation structure, reliable grounding terminal, etc., to ensure operation safety.

[0003] However, there are still deficiencies in the design of safety protection for non-electric or small handheld processing tools.For example, in electronic component processing, electronic component pin trimming is mostly done with scissors trimmer.Due to the high cost of automation equipment and the complex nature of electronic components, many trimming operations are performed by workers holding trimming tools.However, since electronic component pins are mostly metal, general scissors processing is labor-intensive, and the cut is not smooth and beautiful.Most enterprises use handheld or table-type pneumatic scissors for trimming operation.However, pneumatic scissors have too much power, which can cause the cut waste to splash, making it difficult to collect waste and posing a danger to the user.The existing protective device is mostly for the protection of the pneumatic scissors itself, and there is no protective device for the safety of the user.

[0004] However, the present inventors found that the above-mentioned technology at least has the following technical problems in the process of implementing the utility model technical scheme in the embodiments of the present application:

[0005] 1. The existing pneumatic scissors do not have safety measures for the user, which can cause safety hazards.

[0006] 2. The existing pneumatic scissors can cause waste to splash, making it difficult to collect. UTILITY MODEL CONTENT

[0007] The embodiments of the present application provide an industrial scissors with a protective device, which solves the technical problems of the lack of safety measures in the existing pneumatic scissors, which can cause safety hazards, and the cut waste can splash and be difficult to collect, and achieves the technical effects of having safety measures when the pneumatic scissors works and being able to collect waste.

[0008] The embodiments of the present application provide an industrial scissors with a protective device, which solves the technical problems of the lack of safety measures in the existing pneumatic scissors, which can cause safety hazards, and the cut waste can splash and be difficult to collect, and achieves the technical effects of having safety measures when the pneumatic scissors works and being able to collect waste.

[0009] Further, the pneumatic scissors is generally in a cylindrical shape;

[0010] Further, the protective device is made of transparent material and is nested on the pneumatic scissors to protect the head of the pneumatic scissors.

[0011] Further, the protective device shell is divided into four parts, including: the feeding end, the collecting end, the discharging end, and the scissors end.

[0012] Further, the feeding end is a hollow quadrangular prism;

[0013] Further, the collecting end is connected to one end of the feeding end, and a hollow trapezoidal column extends from the joint to form a slope, followed by a curved plate;

[0014] Further, the discharging end extends from the curved plate and the collecting end to a hollow quadrangular prism with a rectangular opening;

[0015] Further, the scissors end extends from the side opening of the collecting end.

[0016] Further, the slope part and the curved plate part of the protective device shell are provided with a lubricating coating on one side.

[0017] Further, the protective device includes: fasteners, limit devices, limit plates, and collection vessels.

[0018] Further, the fastener is a cylinder provided at the end of the scissors end of the shell, with anti-slip patterns on the surface and a plurality of sliding blocks with a certain curvature inside.

[0019] Further, the limit device is provided at the feeding end of the shell and includes:

[0020] Further, the engraved line extends from the opening of the feeding end to the inside;

[0021] Further, the head engraved line is provided at the tail end of the engraved line inside the protective device shell, with a length and width greater than the engraved line;

[0022] Further, the track is a rectangular slot provided at the feeding end of the protective device shell;

[0023] Further, the limit plate is provided between the tracks and includes: buckles, plates, and holes.

[0024] Further, the buckle is screw-shaped, with a wider head than the track width and a narrower middle part than the track width;

[0025] Further, the plate is a square plate with four buckles connected to it;

[0026] Further, the hole is an opening arranged on the plate;

[0027] Further, the upper end of the collecting container is an interface arranged corresponding to the opening of the discharge end of the shell of the protection device, and the lower end is connected with a container.

[0028] Further, the shell of the protection device is transparent and made of a material with high impact resistance, such as acrylic plate, durable plate, glass steel plate, etc.

[0029] Further, the size of the limiting plate is not limited, and the position, size, shape and number of the holes on the limiting plate are not limited.

[0030] Further, the container connected with the lower end of the collecting container can be made of rigid material or flexible material.

[0031] Further, the pneumatic scissors include an adjusting shaft, an air inlet tail cover, a cutter head, a locking nut and a groove.

[0032] Further, the adjusting shaft is a cylinder inserted into the shell of the pneumatic scissors.

[0033] Further, the air inlet tail cover is a through hole arranged on the shell of the pneumatic scissors.

[0034] Further, the cutter head is arranged at the other end of the shell of the pneumatic scissors relative to the adjusting shaft and the air inlet tail cover, and forms a cavity with the shell of the pneumatic scissors and the adjusting shaft.

[0035] Further, the locking nut is arranged between the adjusting shaft and the shell of the pneumatic scissors, and is used for locking the adjusting shaft.

[0036] Further, the groove is arranged on the shell of the pneumatic scissors, and forms two annular recesses.

[0037] Further, one end of the cutter head in the shell of the pneumatic scissors is connected with a piston, and the piston can reciprocate in the shell of the pneumatic scissors.

[0038] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0039] 1. Since the protection device is nested on the pneumatic scissors, the technical problem that the pneumatic scissors have no safety measures for the user and are prone to cause safety hazards is effectively solved, and the technical effect of protecting the user from accidental injury is achieved.

[0040] 2. Since the protection device has a special-shaped shell, the technical problem that the existing pneumatic scissors can cause waste to splash and be difficult to collect is effectively solved, and the technical effect that the length of the trimmed material can be adjusted while the waste is guided to a place for collection is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 Figure 1 is a perspective view of an example of a pneumatic shear according to the present application.

[0042] Figure 2 Figure 2 is a front view of an example of a pneumatic shear according to the present application.

[0043] Figure 3 Figure 3 is a top view of an example of a pneumatic shear according to the present application.

[0044] Figure 4 Figure 4 is a rear view of an example of a pneumatic shear according to the present application.

[0045] Figure 5 Figure 5 is a top view of an example of a protective device according to the present application.

[0046] Figure 6 Figure 6 is a top view of an example of a protective device housing partition according to the present application.

[0047] Figure 7 Figure 7 is a rear view of an example of a protective device housing partition according to the present application.

[0048] Figure 8 Figure 8 is a detailed view of an example of a limiting device according to the present application.

[0049] Figure 9 Figure 9 is a view of an example of a limiting plate and limiting device connection according to the present application.

[0050] Figure 10 Figure 10 is a view of an example of a limiting plate according to the present application.

[0051] Figure 11 Figure 11 is a view of an example of a collection vessel according to the present application.

[0052] Figure 12 Figure 12 is a view of an example of a replaceable limiting plate according to the present application.

[0053] Figure 13 Figure 13 is a top view of an example of a pneumatic shear and protective device assembly according to the present application.

[0054] Figure 14 Figure 14 is a rear view of an example of a pneumatic shear and protective device assembly according to the present application.

[0055] Figure 15 Figure 15 is a view of an example of a protective device fastener tightening action according to the present application.

[0056] Figure 16 Figure 16 is a view of an example of a pneumatic shear and protective device connection according to the present application. DETAILED DESCRIPTION

[0057] This application provides an industrial scissors with a protective device, which solves the technical problems of existing pneumatic scissors lacking safety measures, which easily cause safety hazards, and the waste material that is difficult to collect when cut, thus achieving the technical effect of having safety protection measures when the pneumatic scissors are working and being able to collect waste material.

[0058] To address the technical problems of existing pneumatic shears lacking safety measures, which could lead to safety hazards, and the difficulty in collecting the scrap material that is cut, the overall approach is as follows:

[0059] By using a transparent and impact-resistant material to create a housing that is nestled within the pneumatic shears, the problem of splattering when the pneumatic shears cut electronic component leads is prevented without affecting usability. Even if waste splatters when the pneumatic shears cut electronic component leads, the transparent and impact-resistant protective housing can contain the waste.

[0060] The protective device features a specially shaped casing with three openings: one for inserting material for trimming, one for introducing the pneumatic shears, and one for waste collection. The device incorporates beveled and curved surfaces, allowing waste cut by the pneumatic shears to automatically slide into the waste collection area by gravity. The collection area is connected to a collection container to effectively collect the waste.

[0061] In addition, a limiting device is set above the feed end of the protection device. The length of the pin left after trimming can be precisely selected by the limiting plate and the scribing line that can move on the track. The size, position and number of holes in the limiting plate are unlimited, and multiple pins can be trimmed at the same time.

[0062] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0063] like Figures 1-11 An industrial pair of scissors with a protective device is shown:

[0064] The scissors described in this application include pneumatic scissors 1 and a protective device 2. The pneumatic scissors 1 is generally cylindrical and used for performing cutting operations. The protective device 2 is made of a transparent and impact-resistant material and is nested within the pneumatic scissors 1. Its main function is to protect the user and prevent the shavings cut by the pneumatic scissors 1 from flying. Additionally, the protective device 2 protects the pneumatic scissors blade 103, preventing accidental damage and extending its service life. Furthermore, the protective device 2 guides the shavings cut by the pneumatic scissors 1 to a designated location for collection, achieving a waste collection effect.

[0065] The pneumatic scissors 1 comprises an adjusting shaft 101, an air inlet tail cover 102, a cutter head 103, a locking nut 104 and a groove 105. The adjusting shaft 101 is a cylinder inserted into the pneumatic scissors shell and arranged opposite to the cutter head 103 to form a cavity. The air inlet tail cover 102 is a through hole arranged on the pneumatic scissors shell for pneumatic operation of the pneumatic scissors 1. The cutter head 103 is connected with a piston which can reciprocate in the pneumatic scissors shell to realize the shearing function. The locking nut 102 is arranged between the adjusting shaft 101 and the pneumatic scissors shell to fix the adjusting shaft 101. The groove 105 is arranged on the pneumatic scissors shell to form an annular recess, which increases the stability and comfort of the pneumatic scissors 1 and is used for connecting the protection device 2.

[0066] The shell of the protection device 2 is designed as four parts: a feeding end 21, a material collecting end 22, a discharging end 23 and a scissors end 24. The feeding end 21 is a hollow quadrangular prism for facilitating the entry of materials; the material collecting end 22 is connected with the feeding end 21 and extends into a hollow right-angled trapezoidal column through an interface, the inclined surface of which has a slope, and the right-angled surface is connected with an arc-shaped plate for guiding the waste to the discharging end 23; the discharging end 23 extends from the arc-shaped plate and the material collecting end 22 and is a hollow quadrangular prism provided with a rectangular opening for facilitating the discharge of the sheared materials; and the scissors end 24 extends from the side opening of the material collecting end and is connected with the cutter head 103 of the pneumatic scissors 1. The waste sheared by the pneumatic scissors 1 can naturally slide down along the inclined surface, and the splashed materials can be blocked by the shell 20 of the protection device, guided by the arc-shaped plate and the inclined surface and then collected.

[0067] The fastener 201 is a hollow cylinder arranged at the end of the scissors end of the shell of the protection device, has anti-slip patterns on the surface and has a plurality of sliding blocks in the interior. By rotating the fastener 201, the sliding blocks can be moved towards the central axis of the cylinder, so that the sliding blocks can be clamped on the annular recess of the pneumatic scissors 1 to connect the protection device 2 to the pneumatic scissors 1 and adjust the fastening degree of the protection device 2. The limiting device 202 is arranged at the feeding end of the shell and comprises a scale line 2021, a cutter head scale line 2022, a track 2023 and a limiting plate 203. The track 2023 is four rectangular grooves for sliding the four buckles 2031 arranged on the limiting plate 203 thereon, the buckle 2031 fixes a plate 2032 for limiting the length of the sheared materials and preventing the waste from splashing out of the feeding opening to cause danger, the plate 2032 is provided with a plurality of holes 2033 for the pins to extend into, the size, position and number of the holes 2033 are not limited, and the limiting plate 203 can be easily replaced to provide better choices for the user and be applicable to different scenes.

[0068] The opening of the discharging end 23 of the shell 20 of the protection device can be connected with a collecting vessel 204 for collecting the sheared materials.

[0069] The method for collecting the waste comprises:

[0070] Using rigid material as the collection vessel, i.e. a rigid material box or tank or other container connected to the opening of the discharge end of the protection device to receive the waste material produced after the shearing of the pneumatic scissors;

[0071] Using flexible material as the collection vessel, i.e. a flexible material bag or other container connected to the opening of the discharge end of the protection device to receive the waste material produced after the shearing of the pneumatic scissors;

[0072] Without connecting the collection vessel, i.e. a container is arranged below the opening of the discharge end of the protection device, and the waste material falls into the container below through the guidance of the shell of the protection device.

[0073] In addition, the shell of the protection device is made of transparent and impact-resistant material, such as acrylic plate, durable plate or glass steel plate, etc., to improve the durability and visibility of the protection device.

[0074] Through the above embodiments, the industrial scissors with the protection device of the utility model not only can effectively protect the operator and the blade head, but also can improve the safety and efficiency of the shearing operation, and can also select the length of the sheared material.

[0075] As shown in the replaceable limiting plate example diagram: Figure 12

[0076] The size, shape and number of the holes on the limiting plate are not limited and can be customized according to the needs of the user. The figure gives some variation examples of the limiting plate of the present application, but does not include all variations.

[0077] The first one in the first row in the figure is the limiting plate used in other drawings of the present application, the hole is circular and is arranged at the center position of the limiting plate;

[0078] The second one in the first row in the figure is one of the limiting plate variations of the present application, the hole is square and is arranged at the center position of the limiting plate;

[0079] The third one in the first row in the figure is one of the limiting plate variations of the present application, the hole is circular and is arranged at the center position of the limiting plate, but the size of the hole is slightly larger than that of the first one in the first row;

[0080] The first one in the second row in the figure is one of the limiting plate variations of the present application, the hole is circular and is arranged at the center position of the limiting plate, but the size of the hole is slightly smaller than that of the first one in the first row;

[0081] The second one in the second row in the figure is one of the limiting plate variations of the present application, the hole is two and both are circular, arranged on the horizontal symmetry axis of the limiting plate, but the size of the hole is slightly smaller than that of the first one in the first row;​

[0082] The third hole in the second row of the figure is one of the deformations of the limiting plate in this application example. There are three holes, two of which are circular and one is square. They are arranged on the transverse axis of symmetry of the center of the limiting plate. The size of the circular holes is slightly smaller than the size of the first hole shown in the first row, and the size of the square hole is slightly larger than the size of the first hole shown in the first row.

[0083] like Figure 13 , 14 The following is an assembly diagram of the pneumatic scissors and protective device shown in Figure 16 of this application:

[0084] The pneumatic shears 1 extend into the protective device through the shear end 24 of the protective device housing. The annular groove on the shear end 24 aligns with the fastener 201 of the shear end 24 and is locked in place. The pneumatic shear head 103 is vertically positioned at the limit device's cutter head marking 2022. Adjusting the limit plate 203 via the marking 2021 allows selection of the material cutting length. Simultaneously, the vertical positioning of the pneumatic shear head 103 ensures that material entering from the feed end 21 receives a clean cut after shearing. The waste material cut by the pneumatic shears 1 is guided to the discharge end 23 via the inclined surface and curved plate of the protective device housing for further collection.

[0085] The protective device housing 20 should be made of transparent material, meaning that when it is nested on top of the pneumatic scissors 1, the user can see the pneumatic scissors 1 inside and the cutting process through the protective device housing 20. Figure 16 For ease of viewing the nesting effect and for a concise illustration, the pneumatic scissors 1 part inside the protective device housing 20 is not shown.

[0086] like Figure 15 The diagram shown illustrates the fastening action of the fastener in the protection device of this application example:

[0087] By rotating the fastener 201 at the tail of the scissor end on the protective device housing, the internal slider moves towards the central axis of the cylinder to protrude. The position of the slider corresponds to the groove 105 on the pneumatic scissor housing, i.e., the position of the two annular recesses, thus locking and fixing the pneumatic scissors 1. For replacement or disassembly, simply rotate the fastening device in the opposite direction to retract the internal slider. Although preferred embodiments of this utility model have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this utility model.

[0088] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. An industrial scissors with a protective device, comprising: a pneumatic scissors (1) in a general cylindrical shape; a protective device (2) made of transparent material, nested on the pneumatic scissors (1), the protective device shell (20) is divided into four parts, including: a feeding end (21) in a hollow quadrangular prism shape; a collecting end (22) connected to one end of the feeding end (21), a hollow trapezoidal column is extended from the joint to form a slope, and then connected to an arc-shaped plate; a discharging end (23) extended from the arc-shaped plate and the collecting end (22) to a hollow quadrangular prism with a rectangular opening; a scissors end (24) extended from the opening on the side of the collecting end (22); the protective device (2) is nested on the pneumatic scissors (1) to wrap the head (103) of the pneumatic scissors (1) to play a protective role.

2. The industrial scissors with a protection device according to claim 1, characterized in that: The slope part and the arc-shaped plate part of the protective device shell (20) are provided with a lubricating coating on the inner side.

3. The industrial scissors with a protective device according to claim 1, wherein the protective device (2) comprises: a fastener (201) in a cylindrical shape, provided at the end of the scissors end (24) of the shell, provided with anti-skid lines on the surface, and provided with a plurality of sliding blocks with a certain curvature inside, and the fastener (201) is rotated to move the sliding blocks to the center of the cylinder; a limiting device (202) provided at the feeding end (21) of the shell, comprising: a scale line (2021) extended from the opening of the feeding end (21) to the inside; a head scale line (2022) provided at the end of the scale line (2021) in the protective device shell (20), with a length and a width greater than those of the scale line (2021); a track (2023) in a rectangular slot shape, provided at the feeding end of the protective device shell (20); a limiting plate (203) provided between the tracks (2023), comprising: a buckle (2031) in a screw shape, with a head wider than the width of the track (2023) and a middle part with a width smaller than the width of the track (2023); a plate (2032) in a square shape, with four buckles (2031) connected thereto; a hole (2033) in an opening shape, provided on the plate (2032); a collection vessel (204) with an upper end in a joint shape corresponding to the opening of the discharging end (23) of the protective device shell (20) and a lower end connected to a vessel. The shell of the protective device should be made of transparent and impact-resistant material, such as acrylic plate, durable plate, and glass steel plate.

4. An industrial scissors with a protection device as claimed in claim 3, characterized in that: The size of the limiting plate (203) is not limited, and the position, size, shape, and number of the holes (2033) on the limiting plate (203) are not limited.

5. An industrial scissors with a protection device as claimed in claim 3, characterized in that: The vessel connected to the lower end of the collection vessel (204) can be made of rigid material (204a) or flexible material (204b).

6. An industrial scissors with a protection device as defined in claim 3, characterized in that:

7. The industrial scissors with a protective device according to claim 1, wherein the pneumatic scissors (1) comprises: ​ Adjusting shaft (101), which is a cylinder inserted into the pneumatic scissors shell; Air inlet tail cover (102), which is a through hole opened on the pneumatic scissors shell; Blade head (103), which is arranged at the other end of the pneumatic scissors shell relative to the adjusting shaft (101) and the air inlet tail cover (102), and forms a cavity with the pneumatic scissors shell and the adjusting shaft; Locking nut (104), which is arranged between the adjusting shaft (101) and the pneumatic scissors shell, and is used for locking the adjusting shaft (101); Groove (105), which is arranged on the pneumatic scissors shell and forms two annular recesses, the curvature of the recesses corresponding to the curvature of the slider inside the fastener (201).

8. An industrial scissors with a protection device as claimed in claim 7, characterized in that: The blade head (103) is connected with a piston at one end in the pneumatic scissors shell, and the piston can reciprocate in the pneumatic scissors shell.

Images