Automatic blade mounting device for art knife

Abstract

The invention relates to the field of automatic blade installation, and discloses an art knife automatic blade installation device which comprises a shell, a guide rail groove is formed in the front side wall of the shell, a blade is arranged in the shell, and a rapid locking mechanism is arranged in the shell. And the quick locking mechanism comprises a hand-push surface cover, a motor and a supporting plate, a sliding plate is fixedly connected to the rear side wall of the hand-push surface cover, and the interior of the sliding plate is slidably connected to the outer side of the guide rail groove. Through the arrangement of a quick locking mechanism and a reset assembly, the problems that a blade is prone to loosening, the position of the blade needs to be frequently adjusted, a large amount of time and energy are wasted, and the working efficiency is reduced can be solved, a lead screw can penetrate through a supporting column and the interior of a fixing ring to enter a supporting plate, and therefore the blade can be fixed conveniently. Therefore, the risk that the blade accidentally pops up to hurt a user is effectively reduced, the use safety is improved, and the installation time is saved.

Description

Technical Field

[0001] The invention relates to the field of automatic blade installation, and in particular to a device for automatically installing a blade for a utility knife and a method for using the device. Background Art

[0002] A utility knife, also commonly known as a carving knife or wallpaper knife, is a knife used for art and handicrafts. It is mainly used to cut soft things. Utility knives are usually small and easy to carry. They can be placed in pockets, pencil cases or tool bags and used anytime, anywhere. Compared with other professional cutting tools, utility knives are more affordable and easily accepted by the public.

[0003] In the use of traditional utility knives, the installation of the blade often requires manual operation. When installing the blade, the fingers are likely to directly contact the sharp blade. After installation, the blade may not be firmly fixed inside the utility knife body. When using the utility knife for cutting and other operations, the blade may become loose, affecting the accuracy and effect of cutting. The position of the blade needs to be adjusted frequently to ensure the accuracy of cutting, which will waste a lot of time and energy and reduce work efficiency. When the friction between the various components inside the device increases, this may cause wear, deformation or damage to the components. Over time, it may cause the device to malfunction and affect its normal use. With the increase in the number of uses, the blade's edge will gradually become blunt. Without a cleaning and grinding mechanism, the worn parts and tiny gaps on the blade cannot be removed in time, causing the sharpness of the blade to continue to decrease. In addition, during use, the residue of impurities will stick to the surface of the blade, increasing the risk of rust and causing impurities to accumulate inside the device. These impurities may block the device's channel, affecting the installation and operation of the blade and shortening the blade's service life. Summary of the invention

[0004] The main purpose of the present invention is to provide an automatic blade installation device for a utility knife and a method for using the same, which can effectively solve the problem that the blade is easily loosened, affecting the cutting accuracy and effect, and the position of the blade needs to be frequently adjusted to ensure the cutting accuracy, which wastes a lot of time and energy and reduces work efficiency.

[0005] To achieve the above object, the present invention provides the following technical solution: an automatic blade installation device for a utility knife, comprising a housing, a guide rail groove is provided on the front side wall of the housing, a blade is arranged inside the housing, and a quick locking mechanism is arranged inside the housing;

[0006] The quick locking mechanism includes: a hand-push surface cover, a motor and a support plate, the rear side wall of the hand-push surface cover is fixedly connected with a slide plate, the interior of the slide plate is slidably connected to the outside of the guide rail groove, a circuit box is arranged inside the hand-push surface cover, the rear side wall of the circuit box is fixedly connected to the front side wall of the slide plate, a button battery is arranged inside the hole groove of the front side wall of the circuit box, the outer side of the front side wall of the motor is fixedly connected to the inner side of the rear side wall of the circuit box, the output end of the motor is fixedly connected with a rotating shaft, the rear end of the rotating shaft is fixedly connected with a screw rod, the rear end of the screw rod is rotatably connected to the inside of the front end of the support plate, the rear end of the support plate is fixedly connected with a pulley, the outer side of the screw rod is rotatably connected to a support column, the rear end of the support column is fixedly connected with a fixing ring, and a reset component is arranged inside the support column.

[0007] Furthermore, the reset assembly includes: four connecting plates and four connecting rods, the four connecting plates are rotatably connected to the front end of the support column, the outer side walls of the four connecting plates are fixedly connected to the arc plates, the four connecting rods are slidably connected to the inside of the four arc plates, the front end of the support column is provided with holes, the inside of the four holes are fixedly connected to the support rods, the outer sides of the four support rods are fixedly connected to springs, the outer sides of the top ends of the four springs are rotatably connected to articulated frames, and the top walls of the four articulated frames are fixedly connected to the bottom walls of the connecting plates.

[0008] Furthermore, the outer sides of the support column and the fixing ring are arranged inside the rear hole groove of the blade, and the arc plate, the connecting rod and the support plate are arranged on the front and rear sides of the blade.

[0009] Furthermore, a guide rail plate is fixedly connected to the inner rear side wall of the housing, the pulley is slidably connected to the inside of the guide rail plate, and a lubrication mechanism is provided on the top and inside of the housing;

[0010] The lubrication mechanism includes: a storage box, a delivery pipe, a first clamping plate and a second clamping plate. The bottom of the storage box is connected to the top wall of the shell, a feeding port is provided on the top of the storage box, the middle outer side of the delivery pipe is connected to the inside of the storage box, a feed trough is provided on the middle top wall of the delivery pipe, the bottom wall of the delivery pipe is connected to a spray pipe, and the front and rear sides of the left end of the delivery pipe are connected to a transfer tube.

[0011] Furthermore, the front side walls of the three first clamping plates are all arranged on the rear side of the blade, and the rear side walls of the three first clamping plates are all fixedly connected to the internal rear side wall of the shell, the rear side walls of the three second clamping plates are all arranged on the front side of the blade, and the front side walls of the three second clamping plates are fixedly connected to the internal front side wall of the shell, and a single second clamping plate is arranged corresponding to the first clamping plate.

[0012] Furthermore, the bottom ends of each two of the spray pipes are connected through the top walls of each second clamping plate and the first clamping plate, and the two transfer tubes are arranged on the front and rear sides of the top wall of the blade, and the two transfer tubes are arranged on the left side of the left first clamping plate and the second clamping plate.

[0013] Furthermore, a blade tail is fixedly connected to the right side wall of the shell, and scrapers are fixedly connected to the front and rear sides of the interior of the shell, and the two scrapers are arranged on the front and rear sides of the blade.

[0014] Furthermore, the right side walls of the two scrapers are fixedly connected with brushes, the two brushes are arranged on the front and rear sides of the blade, and the inner bottom wall of the shell is fixedly connected with a sharpening plate.

[0015] Furthermore, the bottom wall of the blade is arranged inside the sharpening plate, a drain hole is provided on the right bottom wall of the sharpening plate, and a debris outlet is provided on the right bottom wall of the shell, and the drain hole and the debris outlet are arranged correspondingly.

[0016] The present invention also provides a method for using a utility knife automatic blade installation device, the specific method comprising the following steps:

[0017] Step 1: Place the blade inside the shell. When the blade is placed inside the support column, the rear side wall of the blade will squeeze the arc plate to rotate backward. When the arc plate rotates, the internal connecting rod will slide inside the arc plate, and the bottom wall of the connecting plate will press down the hinge frame, causing the hinge frame to rotate outside the support rod and compress the spring, so that the rear hole groove of the blade is sleeved on the outside of the support column and the fixed ring.

[0018] Step 2: The screw will penetrate the support column and the fixing ring and enter the support plate, activating the quick locking mechanism. The button battery will power the circuit box, which will control the motor to operate. The output end of the motor will drive the rotating shaft to rotate, which will then cause the screw to start rotating, and the rotation of the screw will drive the support column to move forward and backward.

[0019] Step 3: The bottom wall of the delivery pipe is connected to a plurality of spray pipes, which are respectively connected to the top walls of the corresponding first clamping plate and the second clamping plate. The first clamping plate is fixed to the rear wall inside the shell, the second clamping plate is fixed to the front wall inside the shell, and the single second clamping plate is arranged corresponding to the first clamping plate, and they work together to clamp the blade in the middle and support the blade, so as to provide a stable sliding area for the blade when sliding;

[0020] Step 4: Use the scraper to scrape off the sticky impurities on the front and back sides of the blade to prevent them from entering the interior of the shell. After scraping, the brush on the right side of the scraper will be used to clean the front and back sides of the blade to prevent water from remaining in front and behind the blade and causing the blade to rust. In addition, the blade will slide inside the sharpening plate each time it is used.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention can solve the problem that the blade is easy to loosen, affecting the cutting accuracy and effect, and the position of the blade needs to be adjusted frequently to ensure the accuracy of cutting, which will waste a lot of time and energy and reduce work efficiency. The screw rod will penetrate the support column and the interior of the fixed ring into the interior of the support plate, start the quick locking mechanism, and the button battery will power the circuit box, which controls the operation of the motor. The output end of the motor drives the rotating shaft to rotate, and then the screw rod starts to rotate. The rotation of the screw rod drives the support column to move forward and backward, thereby effectively reducing the risk of accidental ejection of the blade causing harm to the user, improving the safety of use, and saving installation time.

[0023] 2. The lubrication mechanism can solve the problem of wear, deformation or damage of components, which may cause device failure and affect its normal use over time. A plurality of spray pipes are connected through the bottom wall of the delivery pipe, and these spray pipes are respectively connected to the top walls of the corresponding first clamping plate and the second clamping plate. The first clamping plate is fixed to the rear side wall inside the shell, the second clamping plate is fixed to the front side wall inside the shell, and the single second clamping plate is set corresponding to the first clamping plate, and they work together to clamp the blade in the middle and support the blade to provide a stable sliding area for the blade when sliding, thereby effectively reducing friction, extending the life of components and improving operating efficiency.

[0024] 3. The scraper, brush, sharpening plate, drain hole and miscellaneous outlet can solve the problem of impurities accumulating inside the device. These impurities may block the channel of the device, affect the installation and operation of the blade, and shorten the service life of the blade. The scraper is used to scrape the impurities sticking to the front and back sides of the blade to prevent them from entering the interior of the shell. After scraping, the brush on the right side of the scraper will be used to clean the front and back sides of the blade to prevent water from remaining in front and behind the blade and causing the blade to rust. In addition, the blade will slide inside the sharpening plate each time it is used to grind the bottom of the blade, so that the blade can remain sharp each time it is used, thereby effectively improving the service life of the blade and greatly extending it, reducing the cost and trouble of frequent blade replacement.

[0025] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional structural diagram of an automatic blade installation device for a utility knife proposed by the present invention;

[0027] Figure 2 This is an internal cross-sectional structural diagram of an automatic blade installation device for a utility knife proposed by the present invention;

[0028] Figure 3 A structural diagram of a quick locking mechanism of an automatic blade installation device for a utility knife proposed by the present invention;

[0029] Figure 4 This is a cross-sectional view of the internal structure of a hand-pushed cover of an automatic blade installation device for a utility knife proposed by the present invention;

[0030] Figure 5 This is a screw rod structure diagram of a utility knife automatic blade installation device proposed by the present invention;

[0031] Figure 6 This is a pulley structure diagram of a utility knife automatic blade installation device proposed by the present invention;

[0032] Figure 7 A schematic diagram of a reset assembly of an automatic blade installation device for a utility knife proposed by the present invention;

[0033] Figure 8 A structural diagram of a support rod of an automatic blade installation device for a utility knife proposed by the present invention;

[0034] Fig. 9 This is a structural diagram of an arc-shaped plate of an automatic blade installation device for a utility knife proposed by the present invention;

[0035] Fig.10 This is a structural diagram of a guide rail plate of a utility knife automatic blade installation device proposed by the present invention;

[0036] Fig.11 This is a structural diagram of a lubrication mechanism of an automatic blade installation device for a utility knife proposed by the present invention;

[0037] Fig.12 A structural diagram of a storage box of a utility knife automatic blade installation device proposed by the present invention;

[0038] Fig.13 A structural diagram of a second clamping plate of a utility knife automatic blade installation device proposed by the present invention;

[0039] Fig.14 A schematic diagram of a drain hole of an automatic blade installation device for a utility knife proposed by the present invention;

[0040] Fig.15 This is a structural diagram of the outlet of an automatic blade installation device for a utility knife proposed by the present invention.

[0041] Legend:

[0042] 1. Shell; 2. Guide rail groove; 3. Quick locking mechanism; 301. Hand-pushing cover; 302. Slide plate; 303. Circuit box; 304. Button battery; 305. Motor; 306. Rotating shaft; 307. Screw rod; 308. Support plate; 309. Support column; 310. Pulley; 311. Fixing ring; 312. Reset assembly; 31201. Connecting plate; 31202. Arc plate; 31203. Connecting rod; 31204. Hole position; 31205, support rod; 31206, spring; 31207, hinged frame; 4, blade; 5, lubrication mechanism; 501, storage box; 502, feeding port; 503, conveying pipe; 504, feeding trough; 505, spray pipe; 506, transfer pipe; 507, first clamping plate; 508, second clamping plate; 6, guide plate; 7, knife tail; 8, scraper; 9, brush; 10, sharpening plate; 11, drainage hole; 12, miscellaneous outlet. DETAILED DESCRIPTION

[0043] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0044] like Figure 1 - Fig.10 As shown: A utility knife automatic blade installation device comprises a housing 1, a guide groove 2 is provided on the front side wall of the housing 1, a slide plate 302 is provided with a position of a sliding area through the provided guide groove 2, a blade 4 is provided inside the housing 1, and a quick locking mechanism 3 is provided inside the housing 1;

[0045] The quick locking mechanism 3 includes: a hand-pushing cover 301, a motor 305 and a support plate 308. The rear side wall of the hand-pushing cover 301 is fixedly connected with a slide plate 302. The inside of the slide plate 302 is slidably connected to the outside of the guide groove 2. The hand-pushing cover 301 is pushed to drive the slide plate 302 to slide on the outside and inside of the guide groove 2, and drive the blade 4 to slide inside the shell 1. The hand-pushing cover 301 is provided with a circuit box 303. The rear side wall of the circuit box 303 is fixedly connected to the front side wall of the slide plate 302. A button battery 304 is provided inside the hole groove of the front side wall of the circuit box 303. The outer side of the front side wall of the motor 305 is fixedly connected to the inside of the rear side wall of the circuit box 303. The circuit box 303 is fixed to the inside of the hand-pushing cover 301 to protect the outside of the circuit box 303. When the button battery 304 is placed on the front side of the circuit box 303, the circuit box 303 is locked. 03, the motor 305 at the rear side is powered and drives the motor 305 to work, the output end of the motor 305 is fixedly connected with a rotating shaft 306, the rear end of the rotating shaft 306 is fixedly connected with a screw rod 307, the rear end of the screw rod 307 is rotatably connected to the front end of the support plate 308, and is connected to the screw rod 307 through the rotating shaft 306 on the output end of the motor 305, and drives the screw rod 307 to rotate inside the support plate 308, the rear end of the support plate 308 is fixedly connected with a pulley 310, the outer side of the screw rod 307 is rotatably connected with a support column 309, the rear end of the support column 309 is fixedly connected with a fixing ring 311, the support column 309 and the fixing ring 311 on the outer side are driven to rotate through the support plate 308, and the support column 309 and the fixing ring 311 are made to slide back and forth inside the shell 1, and a reset component 312 is arranged inside the support column 309.

[0046] like Figure 1 - Fig. 9As shown, the reset assembly 312 includes: four connecting plates 31201, four connecting rods 31203, the four connecting plates 31201 are all rotatably connected to the front end of the support column 309, the outer side walls of the four connecting plates 31201 are all fixedly connected to the arc plates 31202, the four connecting rods 31203 are all slidably connected to the inside of the four arc plates 31202, the front end of the support column 309 is provided with holes 31204, the insides of the four holes 31204 are all fixedly connected to support rods 31205, the outer sides of the four support rods 31205 are all fixedly connected to springs 31206, and the top outer sides of the four springs 31206 are The sides are all rotatably connected with articulated frames 31207, and the top walls of the four articulated frames 31207 are fixedly connected to the bottom wall of the connecting plate 31201. When the blade 4 is placed inside the support column 309, the rear side wall of the blade 4 will squeeze the arc plate 31202 to rotate backward. When the arc plate 31202 rotates, the internal connecting rod 31203 will slide inside the arc plate 31202. At the same time, the bottom wall of the connecting plate 31201 will press down the articulated frame 31207, so that the articulated frame 31207 rotates outside the support rod 31205 and compresses the spring 31206, so that the rear hole groove of the blade 4 is sleeved on the outside of the support column 309 and the fixed ring 311.

[0047] like Figure 1 - Fig.10 As shown, the outer sides of the support column 309 and the fixing ring 311 are arranged inside the rear hole groove of the blade 4, the arc plate 31202, the connecting rod 31203 and the support plate 308 are arranged on the front and rear sides of the blade 4, the inner rear side wall of the shell 1 is fixedly connected with the guide plate 6, and the pulley 310 is slidably connected inside the guide plate 6.

[0048] like Figure 1 - Fig.13 As shown, a lubrication mechanism 5 is provided on the top and inside of the housing 1;

[0049] The lubricating mechanism 5 comprises: a storage box 501, a delivery pipe 503, a first clamping plate 507 and a second clamping plate 508. The bottom of the storage box 501 is connected to the top wall of the shell 1. The lubricant is placed by fixing the storage box 501 to the top wall of the shell 1 and supporting and fixing the storage box 501. A feeding port 502 is provided on the top of the storage box 501. The lubricant is put into the interior of the storage box 501 through the provided feeding port 502. The middle outer side of the delivery pipe 503 is connected to the interior of the storage box 501. A feeding groove 504 is provided on the middle top wall of the delivery pipe 503. The bottom wall of the delivery pipe 503 is connected to a spray pipe 505. The storage box 501 is filled with lubricant through the feeding groove 504. The internal lubricant flows into the interior of the delivery pipe 503, and then is transferred to the spray pipe 505 for discharge. The front and rear sides of the left end of the delivery pipe 503 are both connected with the transfer pipe 506. The front side walls of the three first clamping plates 507 are all arranged on the rear side of the blade 4, and the rear side walls of the three first clamping plates 507 are all fixedly connected to the inner rear side wall of the shell 1. The rear side walls of the three second clamping plates 508 are all arranged on the front side of the blade 4, and the front side walls of the three second clamping plates 508 are fixedly connected to the inner front side wall of the shell 1. The blade 4 is supported by the second clamping plates 508 and the first clamping plates 507, and a stable sliding effect is provided for the blade 4. The single second clamping plate 508 is arranged correspondingly to the first clamping plate 507.

[0050] like Figure 1 - Fig.13 As shown, the bottom ends of each two spray pipes 505 are connected through the top walls of each second clamping plate 508 and the first clamping plate 507, and the lubricant is evenly flowed to the outside of the blade 4 through the spray pipes 505 that penetrate the top walls of the first clamping plate 507 and the second clamping plate 508. The two transfer tubes 506 are both arranged on the front and rear sides of the top wall of the blade 4, and the two transfer tubes 506 are both arranged on the left side of the left first clamping plate 507 and the second clamping plate 508. The lubricant flows into the left side of the blade 4 through the set transfer tubes 506 for lubrication.

[0051] like Figure 1 - Fig.15As shown, the right side wall of the shell 1 is fixedly connected with a knife tail 7, and the front and rear sides of the interior of the shell 1 are fixedly connected with scrapers 8, and the two scrapers 8 are arranged on the front and rear sides of the blade 4. The right side walls of the two scrapers 8 are fixedly connected with brushes 9, and the two brushes 9 are arranged on the front and rear sides of the blade 4. The scrapers 8 are used to scrape the impurities stuck on the outer side of the blade 4 to prevent the impurities from entering the interior of the shell 1. At the same time, after scraping, the surface of the blade 4 will be wiped by the right brush 9 to prevent moisture from causing rust to the blade 4. The interior of the shell 1 A sharpening plate 10 is fixedly connected to the bottom wall of the shell 1, and the bottom wall of the blade 4 is arranged inside the sharpening plate 10. The blade 4 slides inside the sharpening plate 10 when sliding to grind the bottom of the blade 4 so that the blade 4 can remain sharp. A drain hole 11 is provided on the right bottom wall of the sharpening plate 10, and a miscellaneous outlet 12 is provided on the right bottom wall of the shell 1. The drain hole 11 and the miscellaneous outlet 12 are correspondingly arranged. Dust and impurities generated after grinding will pass through the drain hole 11 on the right side of the sharpening plate 10 and the miscellaneous outlet 12 corresponding to each other to discharge the dust into the shell 1.

[0052] The present invention provides a method for using a utility knife automatic blade installation device, which specifically includes the following steps: Step 1: placing a blade 4 inside a housing 1. When the blade 4 is placed inside a support column 309, the rear side wall of the blade 4 will squeeze the arc plate 31202 to rotate backward. When the arc plate 31202 rotates, the internal connecting rod 31203 will slide inside the arc plate 31202. The bottom wall of the connecting plate 31201 will press down the hinge frame 31207, so that the hinge frame 31207 rotates outside the support rod 31205 and compresses the spring 31206, so that the rear hole groove of the blade 4 is sleeved on the outside of the support column 309 and the fixing ring 311;

[0053] Step 2: The screw rod 307 will penetrate the support column 309 and the interior of the fixing ring 311 and enter the interior of the support plate 308, and the quick locking mechanism 3 will be activated. The button battery 304 will power the circuit box 303, and the circuit box 303 will control the operation of the motor 305. The output end of the motor 305 will drive the rotating shaft 306 to rotate, and then the screw rod 307 will start to rotate, and the rotation of the screw rod 307 will drive the support column 309 to move forward and backward;

[0054] Step 3: The bottom wall of the delivery pipe 503 is connected to a plurality of spray pipes 505, and these spray pipes 505 are respectively connected to the top walls of the corresponding first clamping plate 507 and the second clamping plate 508. The first clamping plate 507 is fixed to the rear side wall inside the housing 1, and the second clamping plate 508 is fixed to the front side wall inside the housing 1. The single second clamping plate 508 is arranged corresponding to the first clamping plate 507, and they work together to clamp the blade 4 in the middle and support the blade 4, so as to provide a stable sliding area for the blade 4 when sliding.

[0055] Step 4: The scraper 8 is used to scrape off the sticky impurities on the front and rear sides of the blade 4 to prevent them from entering the interior of the shell 1. After scraping, the brush 9 on the right side of the scraper 8 will be used to clean the front and rear sides of the blade 4 to prevent water from being retained in front and behind the blade 4 and causing the blade 4 to rust. In addition, the blade 4 will slide inside the sharpening plate 10 each time it is used.

[0056] It should be noted that the present invention is an automatic blade installation device for a utility knife. First, when the blade 4 needs to be installed on the utility knife, the shell 1 is opened and the blade 4 is placed inside the shell 1. When the blade 4 is placed inside the support column 309, the rear side wall of the blade 4 will squeeze the arc plate 31202 to rotate backward. When the arc plate 31202 rotates, the internal connecting rod 31203 will slide inside the arc plate 31202. At the same time, the bottom wall of the connecting plate 31201 will press down the articulated frame 31207, causing the articulated frame 31207 to rotate outside the support rod 31205 and compress the spring 31206, so that the rear hole groove of the blade 4 is sleeved on the outside of the support column 309 and the fixing ring 311.

[0057] When 1 is closed, the screw rod 307 will penetrate the interior of the support column 309 and the fixing ring 311 and enter the interior of the support plate 308, activating the quick locking mechanism 3, and the button battery 304 supplies power to the circuit box 303, which controls the operation of the motor 305. The output end of the motor 305 drives the rotating shaft 306 to rotate, thereby causing the screw rod 307 to start rotating, and the rotation of the screw rod 307 drives the support column 309 to move forward and backward.

[0058] As the support column 309 moves, the reset assembly 312 inside the front end thereof also moves forward. The connecting plate 31201 in the reset assembly 312 supports and fixes the front side wall of the blade 4 during the movement of the support column 309. When sliding to a certain position, the connecting plate 31201 at the rear will be limited by the support plate 308 at the rear to push the rear side wall of the blade 4 onto the front side wall of the support plate 308 to clamp the front and rear sides of the blade 4 to prevent the blade 4 from shaking. After the blade 4 is fixed, the sliding plate 302 is driven to slide in the guide groove 2 on the front side wall of the housing 1 by sliding the hand-pushing cover 301 during use. When sliding, the rear side wall of the pulley 310 will rotate and slide inside the guide plate 6 to support the blade 4 inside the housing 1 and stably drive the blade 4 to slide inside the housing 1.

[0059] When the blade 4 needs to be replaced, the motor 305 is reversed, and the screw rod 307 drives the support column 309 to move forward. During the forward movement of the support column 309, the arc plate 31202 will move away from the front side wall of the blade 4, and the housing 1 will be opened. When the blade 4 is taken out from the inside of the housing 1, the connecting plate 31201 will drive the arc plate 31202 to rotate forward, and the connecting rod 31203 will shrink inside the arc plate 31202 during the rotation, so as to take out the blade 4 from the outside of the support column 309, and insert a new blade 4 for installation.

[0060] A proper amount of lubricant is added to the storage box 501 through the feeding port 502 at the top of the storage box 501. The bottom of the storage box 501 is connected to the top wall of the housing 1 through the bottom, providing a storage space for the lubricant for the entire lubricating mechanism 5.

[0061] When the blade 4 needs to be lubricated, the lubricant enters the delivery pipe 503 through the feed slot 504 opened on the top wall of the middle part of the delivery pipe 503 under the action of gravity, and the lubricant is delivered to each spray pipe 505. The bottom wall of the delivery pipe 503 is connected with multiple spray pipes 505, and these spray pipes 505 are respectively connected to the top walls of the corresponding first clamping plate 507 and the second clamping plate 508. The first clamping plate 507 is fixed to the rear side wall inside the shell 1, and the second clamping plate 508 is fixed to the front side wall inside the shell 1. The single second clamping plate 508 is arranged corresponding to the first clamping plate 507, and they work together to clamp the blade 4 in the middle and support the blade 4, so as to provide a stable sliding area for the blade 4 when sliding.

[0062] When the lubricant is sprayed out through the spray pipe 505, it will be evenly sprayed on the blade 4 clamped between the first clamping plate 507 and the second clamping plate 508. The transfer pipe 506 located at the front and rear sides of the left end of the delivery pipe 503 is also arranged at the front and rear sides of the top wall of the blade 4 and the left side of the first clamping plate 507 and the second clamping plate 508 on the left side, ensuring that the lubricant can fully cover all parts of the blade 4.

[0063] When the blade 4 slides inside the shell 1, the scraper 8 will scrape off the impurities stuck on the front and back sides of the blade 4 to prevent them from entering the interior of the shell 1. After scraping, the brush 9 on the right side of the scraper 8 will clean the front and back sides of the blade 4 to prevent water from remaining in front and behind the blade 4 and causing the blade 4 to rust. In addition, each time the blade 4 is used, the blade 4 will slide inside the sharpening plate 10 to grind the bottom of the blade 4 so that the blade 4 can remain sharp each time it is used.

[0064] When foreign matter and dust enter the housing 1 , the foreign matter and dust will be discharged through the sharpening plate 10 and the discharge port 12 on the right side of the housing 1 .

[0065] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A utility knife automatic blade installation device, comprising a housing (1), characterized in that: A guide rail groove (2) is provided on the front side wall of the housing (1), a blade (4) is provided inside the housing (1), and a quick locking mechanism (3) is provided inside the housing (1); The quick locking mechanism (3) comprises: a hand-pushing cover (301), a motor (305) and a support plate (308); the rear side wall of the hand-pushing cover (301) is fixedly connected to a slide plate (302); the interior of the slide plate (302) is slidably connected to the outside of a guide rail groove (2); a circuit box (303) is arranged inside the hand-pushing cover (301); the rear side wall of the circuit box (303) is fixedly connected to the front side wall of the slide plate (302); a button battery (304) is arranged inside a hole groove on the front side wall of the circuit box (303); the outside of the front side wall of the motor (305) is fixedly connected to the Inside the rear side wall of the circuit box (303), the output end of the motor (305) is fixedly connected to a rotating shaft (306), the rear end of the rotating shaft (306) is fixedly connected to a screw rod (307), the rear end of the screw rod (307) is rotatably connected to the inside of the front end of a support plate (308), the rear end of the support plate (308) is fixedly connected to a pulley (310), the outer side of the screw rod (307) is rotatably connected to a support column (309), the rear end of the support column (309) is fixedly connected to a fixing ring (311), and a reset component (312) is arranged inside the support column (309).

2. The automatic blade installation device for a utility knife according to claim 1, characterized in that: The reset assembly (312) comprises: four connecting plates (31201) and four connecting rods (31203). The four connecting plates (31201) are all rotatably connected to the front end of the support column (309). The outer side walls of the four connecting plates (31201) are all fixedly connected to the arc-shaped plates (31202). The four connecting rods (31203) are all slidably connected to the inside of the four arc-shaped plates (31202). The support column (309) The front end is provided with holes (31204), the insides of the four holes (31204) are fixedly connected to support rods (31205), the outer sides of the four support rods (31205) are fixedly connected to springs (31206), the outer sides of the top ends of the four springs (31206) are rotatably connected to hinged frames (31207), and the top walls of the four hinged frames (31207) are fixedly connected to the bottom wall of the connecting plate (31201).

3. The automatic blade installation device for a utility knife according to claim 2, characterized in that: The outer sides of the support column (309) and the fixing ring (311) are arranged inside the rear hole groove of the blade (4), and the arc plate (31202), the connecting rod (31203) and the support plate (308) are arranged on the front and rear sides of the blade (4).

4. The automatic blade installation device for a utility knife according to claim 1, characterized in that: A guide rail plate (6) is fixedly connected to the inner rear side wall of the housing (1), the pulley (310) is slidably connected to the inside of the guide rail plate (6), and a lubrication mechanism (5) is provided on the top and inside of the housing (1); The lubrication mechanism (5) comprises: a storage box (501), a delivery pipe (503), a first clamping plate (507) and a second clamping plate (508); the bottom of the storage box (501) is connected to the top wall of the shell (1); a feeding port (502) is provided on the top of the storage box (501); the outer middle part of the delivery pipe (503) is connected to the inside of the storage box (501); a feeding trough (504) is provided on the top wall of the middle part of the delivery pipe (503); the bottom wall of the delivery pipe (503) is connected to a spray pipe (505); and the front and rear sides of the left end of the delivery pipe (503) are connected to a transfer pipe (506).

5. The automatic blade installation device for a utility knife according to claim 4, characterized in that: The front side walls of the three first clamping plates (507) are all arranged on the rear side of the blade (4), and the rear side walls of the three first clamping plates (507) are all fixedly connected to the internal rear side wall of the shell (1); the rear side walls of the three second clamping plates (508) are all arranged on the front side of the blade (4), and the front side walls of the three second clamping plates (508) are fixedly connected to the internal front side wall of the shell (1); and a single second clamping plate (508) is arranged corresponding to the first clamping plate (507).

6. The automatic blade installation device for a utility knife according to claim 4, characterized in that: The bottom ends of each two of the spray pipes (505) are connected through the top walls of each second clamping plate (508) and the first clamping plate (507), and the two transfer tubes (506) are arranged on the front and rear sides of the top wall of the blade (4), and the two transfer tubes (506) are arranged on the left side of the first clamping plate (507) and the second clamping plate (508).

7. The automatic blade installation device for a utility knife according to claim 1, characterized in that: The right side wall of the shell (1) is fixedly connected with a blade tail (7), and the front and rear sides of the shell (1) are fixedly connected with scrapers (8), and the two scrapers (8) are arranged on the front and rear sides of the blade (4).

8. The automatic blade installation device for a utility knife according to claim 7, characterized in that: The right side walls of the two scrapers (8) are fixedly connected with brushes (9), and the two brushes (9) are arranged on the front and rear sides of the blade (4). The inner bottom wall of the housing (1) is fixedly connected with a sharpening plate (10).

9. The automatic blade installation device for a utility knife according to claim 8, characterized in that: The bottom wall of the blade (4) is arranged inside the sharpening plate (10), a drain hole (11) is provided on the right bottom wall of the sharpening plate (10), and a waste outlet (12) is provided on the right bottom wall of the housing (1), and the drain hole (11) and the waste outlet (12) are arranged correspondingly.

10. A method for using a utility knife automatic blade installation device according to any one of claims 1 to 9, characterized in that: The specific method includes the following steps: Step 1: Place the blade (4) inside the housing (1). When the blade (4) is placed inside the support column (309), the rear side wall of the blade (4) will squeeze the arc plate (31202) to rotate backward. When the arc plate (31202) rotates, the internal connecting rod (31203) will slide inside the arc plate (31202), and the bottom wall of the connecting plate (31201) will press down the hinge frame (31207), so that the hinge frame (31207) rotates outside the support rod (31205) and compresses the spring (31206), so that the rear hole groove of the blade (4) is sleeved on the outside of the support column (309) and the fixing ring (311); Step 2: The screw rod (307) will penetrate the interior of the support column (309) and the fixing ring (311) and enter the interior of the support plate (308), and the quick locking mechanism (3) will be activated. The button battery (304) will supply power to the circuit box (303), and the circuit box (303) will control the operation of the motor (305). The output end of the motor (305) will drive the rotating shaft (306) to rotate, thereby causing the screw rod (307) to start rotating, and the rotation of the screw rod (307) will drive the support column (309) to move forward and backward; Step 3: The bottom wall of the delivery pipe (503) is connected to a plurality of spray pipes (505), and these spray pipes (505) are respectively connected to the top walls of the corresponding first clamping plate (507) and the second clamping plate (508). The first clamping plate (507) is fixed to the rear side wall inside the shell (1), and the second clamping plate (508) is fixed to the front side wall inside the shell (1). The single second clamping plate (508) is arranged corresponding to the first clamping plate (507), and they work together to clamp the blade (4) in the middle and support the blade (4), so as to provide a stable sliding area for the blade (4) when sliding; Step 4: The scraper (8) is used to scrape off the impurities stuck on the front and rear sides of the blade (4) to prevent them from entering the interior of the housing (1). After scraping, the brush (9) on the right side of the scraper (8) is used to clean the front and rear sides of the blade (4) to prevent water from being retained in front and behind the blade (4) and causing the blade (4) to rust. In addition, the blade (4) will slide inside the sharpening plate (10) each time it is used.

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