Digital creative sketching machine

Abstract

The embodiment of the application provides a digital creative drawing paper machine, which comprises a shell, a driving component, a fixing component, a first positioning mechanism, a control unit and a guiding mechanism; the driving component, the fixing component, the first positioning mechanism and the guiding mechanism are arranged on the shell, the moving direction of the paper is perpendicular to the moving direction of the pen core on the fixing component driven by the driving component, and the application relates to the field of automatic drawing technology. The driving component drives the fixing component to move along the length direction of the shell, and the first positioning mechanism and the guiding mechanism are correspondingly arranged in the vertical direction, the paper is transmitted in the direction perpendicular to the moving direction of the pen core, and the movement of the pen core and the paper on the two-dimensional plane is ensured to be not interfered with each other. The orthogonal movement design significantly improves the accuracy of the drawing path, and is suitable for automatic drawing of complex patterns.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of internet teaching aids, and particularly relates to a digital creative drawing machine. BACKGROUND

[0002] In the field of education and demonstration, with the progress of digital technology and the popularity of the Internet, the intelligentization and networking of teaching aids have become an important trend to improve classroom interactivity and teaching efficiency. Education or demonstration aids, especially digital creative devices for teaching, can realize online acquisition, drawing and sharing of creative patterns by combining Internet functions, helping teachers quickly generate visual teaching materials such as geometric figures, artistic templates or design patterns on paperboards for mathematics, art or engineering teaching. However, existing teaching drawing devices are usually limited to local operation and lack the ability to obtain diversified motion paths and creative patterns in real time through the Internet, making it difficult for teachers to flexibly adapt to different teaching needs.

[0003] In the prior art, education or demonstration aids have significant deficiencies in paperboard drawing and cutting. On the one hand, existing devices cannot effectively record and share different cutting paths, and teachers often need to manually redraw when preparing teaching materials, resulting in low efficiency and poor pattern consistency; on the other hand, the drawing and cutting processes lack integrated control, which easily causes inaccurate drawing of different types of patterns on paperboards, and the cut materials are difficult to be directly used for teaching demonstration, such as generating sliced models or templates for classroom interaction, thereby affecting teaching effectiveness and student participation. In addition, existing Internet integrated teaching aids are mostly limited to simple data transmission level and cannot realize automatic recording, uploading to cloud sharing and on-demand acquisition of motion paths, which limits their application in distributed education environments such as online teaching or resource sharing platforms.

[0004] To solve the above problems, the present application provides a digital creative drawing machine, which realizes the functions of obtaining different motion paths and creative patterns through the Internet, automatic drawing, recording and uploading to cloud sharing through a control unit, solves the problem of realizing different types of drawing on paperboards by recording different cutting paths, and generates accurate teaching materials after cutting for teachers to use in education or demonstration activities, thereby improving the intelligent level and practicality of teaching aids. SUMMARY

[0005] According to an embodiment of the present application, a digital creative drawing machine is provided to solve the technical problems existing in the background art.

[0006] In a first aspect of the present application, a digital creative drawing machine is provided, which comprises a machine shell, a driving component, a fixing component, a first positioning mechanism, a guide mechanism and a control unit.

[0007] The driving component, the fixing component, the first positioning mechanism, the guiding mechanism and the control unit are arranged on the cabinet, the driving component is used to drive the fixing component to move along the length direction of the cabinet, the fixing component is used to fix the refill, the first positioning mechanism and the guiding mechanism are arranged correspondingly in the vertical direction and are used to guide the paper to pass through, and the moving direction of the paper is perpendicular to the moving direction of the refill on the fixing component driven by the driving component.

[0008] Preferably, the first positioning mechanism comprises a plurality of housings, a plurality of frame bodies and a plurality of round rollers.

[0009] The plurality of housings are connected with the cabinet, the frame bodies are rotationally connected with the cabinet, and the round rollers are rotationally connected with the frame bodies; the control unit is used to acquire different motion paths and creative patterns through the Internet, to automatically acquire a corresponding motion path when needed, to control the driving component and the guiding mechanism according to the motion path, so as to complete automatic drawing of different creative patterns; and the control unit is further used to record the drawn motion path and upload it to the cloud for sharing.

[0010] Preferably, the guiding mechanism comprises a main shaft and a plurality of knurls.

[0011] The main shaft is rotationally connected with the cabinet, and the plurality of knurls are processed on the main shaft and correspond to the plurality of round rollers.

[0012] The paper passes between the round rollers and the main shaft.

[0013] Preferably, the first positioning mechanism further comprises a cross beam, a contact plate, a support, a handle, a shaft body, a tension spring and a connecting rod.

[0014] The cross beam is connected with the frame body, the cross beam is connected with the contact plate, the connecting rod can contact the contact plate, the connecting rod is connected with the shaft body, the shaft body is rotationally connected with the support, the support is connected with the cabinet, the shaft body is connected with the handle, and two ends of the tension spring are respectively connected with the support and the contact plate.

[0015] Preferably, the first positioning mechanism further comprises a round wheel, and the side close to the contact plate of the connecting rod is rotationally connected with a round wheel.

[0016] Preferably, the first positioning mechanism further comprises a round groove.

[0017] The round groove is processed on the upper surface of the contact plate and matches the size of the round wheel.

[0018] Preferably, the fixing component comprises a protective shell, a connecting plate, a pen barrel, a refill, a clamping head, a screw rod and a cap body.

[0019] The shell is connected with the driving part, the shell is connected with the connecting plate, the connecting plate is slidingly connected with the pen barrel, the pen core is arranged in the interior of the pen barrel and is slidingly connected with the pen barrel, the connecting plate is threadedly connected with the screw rod, the clamping head is slidingly connected with the screw rod, the cap is connected with the screw rod, one side of the cap is capable of abutting against the clamping head, and the clamping head is abutted against the pen barrel at this time.

[0020] Preferably, the fixing part further comprises at least three trapezoidal blocks, an inner barrel and an outer barrel.

[0021] The inner barrel is connected with the pen barrel, the at least three trapezoidal blocks are rotationally connected with the inner wall of the inner barrel, the outer barrel is threadedly connected with the outer wall of the inner barrel, the outer barrel is capable of contacting the at least three trapezoidal blocks and driving the at least three trapezoidal blocks to move close to each other, and the at least three trapezoidal blocks moving close to each other are capable of abutting against the pen core.

[0022] Preferably, the second positioning mechanism is further included, the number of the guide mechanisms is two, and the other guide mechanism corresponds to the second positioning mechanism, the second positioning mechanism comprises a connecting shaft, a torsional spring, a side plate, a pressing roller and a handrail.

[0023] The connecting shaft is connected with the machine shell, the connecting shaft is rotationally connected with the side plate, the handrail is connected with the side plate, the pressing roller is rotationally connected with the side plate, the torsional spring is sleeved on the connecting shaft, and the two ends of the torsional spring are respectively connected with the side plate and the connecting shaft.

[0024] Preferably, the reversing mechanism arranged in the interior of the machine shell is further included.

[0025] The reversing mechanism comprises two first motors, a first protrusion, a sliding sleeve, an outer ring, an output shaft, a second protrusion matched in size with the first protrusion, a clamping groove matched with the first protrusion and the second protrusion, a sliding rod, a spring, a rack and one gear and an electric push rod.

[0026] Two first protrusions are arranged on the output ends of the two first motors respectively, two output shafts are connected with the two main shafts respectively, the second protrusion is arranged on the output shaft, the clamping groove is arranged on the inner side of the sliding sleeve, the sliding sleeve is in sliding connection with the output ends of the first motors and the outer wall of the output shaft, the outer ring is in rotary connection with the sliding sleeve, the outer ring is in sliding connection with the rack, the rack is in meshing connection with the gear, the gear is in rotary connection with the shell, the electric push rod can drive any rack to move along the length direction of the rack, the sliding rod is connected with the rack, the sliding rod is in sliding connection with the outer ring, the spring sleeve is arranged on the sliding rod, and the two ends of the spring are connected with the rack and the outer ring respectively.

[0027] The one or more technical solutions provided in the application have at least the following technical effects or advantages:

[0028] The digital creative drawing machine provided by the application can record the drawing motion path and upload it to the cloud for sharing, supports teachers to reuse and share the cutting path among different devices or teaching scenes. This function solves the problem that the traditional teaching tools cannot effectively record and share the path, and facilitates the generation of different types of paperboard patterns, which can be directly used for teaching demonstration after cutting, such as geometric models in mathematics courses or creative templates in art courses.

[0029] It should be understood that the content described in the summary section is not intended to limit or define the key or important features of the embodiments of the application, nor to limit the scope of the application. Other features of the application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0030] The above and other features, advantages, and aspects of embodiments of the application will become more apparent by referring to the following detailed description in conjunction with the accompanying drawings, in which like reference numerals indicate like elements in the drawings and in which:

[0031] Figure 1 A perspective connection structure schematic diagram of the digital creative drawing machine according to an embodiment of the application is shown;

[0032] Figure 2 Another perspective connection structure schematic diagram of the digital creative drawing machine according to an embodiment of the application is shown;

[0033] Figure 3 An explosion view of the digital creative drawing machine according to an embodiment of the application is shown;

[0034] Figure 4 Another explosion view of the digital creative drawing machine according to an embodiment of the application is shown;

[0035] Figure 5 A connection structure schematic diagram of a first positioning mechanism of a digital creative drawing machine according to an embodiment of the present application is shown;

[0036] Figure 6 A connection structure schematic diagram of a driving component of a digital creative drawing machine according to an embodiment of the present application is shown;

[0037] Figure 7 A connection structure schematic diagram of a fixing component of a digital creative drawing machine according to an embodiment of the present application is shown;

[0038] Figure 8 A partial enlarged schematic diagram of a fixing component of a digital creative drawing machine according to an embodiment of the present application is shown;

[0039] Figure 9 A planar schematic diagram of a first positioning mechanism of a digital creative drawing machine according to an embodiment of the present application is shown;

[0040] Figure 10 A partial connection structure schematic diagram of a first positioning mechanism of a digital creative drawing machine according to an embodiment of the present application is shown;

[0041] Figure 11 A connection structure schematic diagram of a second positioning mechanism of a digital creative drawing machine according to an embodiment of the present application is shown;

[0042] Figure 12 A connection structure schematic diagram of a reversing mechanism of a digital creative drawing machine according to an embodiment of the present application is shown;

[0043] Figure 13 A partial structure schematic diagram of a reversing mechanism of a digital creative drawing machine according to an embodiment of the present application is shown.

[0044] Reference signs are as follows:

[0045] 1 - casing, 2 - drive component, 201 - second motor, 202 - synchronous wheel, 203 - synchronous belt, 3 - fixed component, 301 - sheath, 302 - connecting plate, 303 - pen barrel, 304 - clamping head, 305 - cap body, 306 - refill, 307 - outer tube, 308 - trapezoidal block, 309 - inner tube, 310 - screw rod, 4 - first positioning mechanism, 401 - shell, 402 - round roller, 403 - frame body, 404 - cross beam, 405 - contact plate, 406 - bracket, 407 - handle, 408 - shaft body, 409 - round wheel, 410 - tension spring, 411 - round groove, 412 - connecting rod, 5 - reversing mechanism, 501 - first motor, 502 - first protrusion, 503 - sliding sleeve, 504 - outer ring, 505 - output shaft, 506 - second protrusion, 507 - clamping groove, 508 - gear, 509 - rack, 510 - sliding rod, 511 - spring, 512 - electric push rod, 6 - guide mechanism, 601 - main shaft, 602 - knurling, 7 - second positioning mechanism, 701 - connecting shaft, 702 - torsional spring, 703 - side plate, 704 - pressure roller, 705 - handrail, 8 - control unit. DETAILED DESCRIPTION

[0046] To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0047] In addition, the term "and / or" in this document merely describes an association relationship of associated objects, and indicates that there can be three relationships, for example, A and / or B can represent three cases of existence of A alone, existence of A and B simultaneously, and existence of B alone. In addition, the character " / " in this document generally represents an "or" relationship between the front and rear associated objects.

[0048] As Figures 1 to 13As shown, the digital creative drawing machine comprises a casing 1, a driving component 2, a fixing component 3, a first positioning mechanism 4 and a guiding mechanism 6; wherein the driving component 2, the fixing component 3, the first positioning mechanism 4 and the guiding mechanism 6 are all arranged on the casing 1; the driving component 2 is used to drive the fixing component 3 to move along the length direction of the casing 1, the fixing component 3 is used to fix the lead, and the first positioning mechanism 4 and the guiding mechanism 6 are correspondingly arranged in the vertical direction and are used to guide the paper to pass through together; the moving direction of the paper is perpendicular to the moving direction of the lead driven by the driving component 2 on the fixing component 3. The driving component 2 is composed of a second motor 201, two synchronous wheels 202 and a synchronous belt 203; the output end of the second motor 201 is connected with one of the two synchronous wheels 202, the two synchronous wheels 202 are driven by the synchronous belt 203, the shaft bodies protruding from the two synchronous wheels 202 are rotatably connected with the casing 1, the casing 301 is connected with the synchronous belt 203, and the casing 301 is driven to reciprocally walk on the synchronous belt 203 by the reciprocating rotation of the second motor 201 to realize the drawing.

[0049] In the embodiment, the control unit 8 is arranged on the casing 1, is used to acquire different motion paths and creative patterns through the Internet, automatically controls the drawing process, and records and shares the drawn motion path, so as to realize the intelligentization and network operation of the digital creative drawing machine. The control unit 8 comprises a processor, a storage module, an input interface, an output interface, a communication module and a power module. The processor is electrically connected with the storage module, the input interface, the output interface and the communication module, is used to process and execute the motion path and the related control instruction; the input interface is used to receive the control instruction or parameter input by the user; the output interface is electrically connected with the motors of the driving component and the guiding mechanism, is used to output the control signal; the communication module supports the Internet connection, is used to acquire and upload the motion path and the creative pattern; and the power module provides stable power supply for the control unit 8.

[0050] The control unit 8 is preferably integrated inside or on the side of the housing 1, using an embedded microcontroller (such as ARM or STM32 series processor) as the processor to achieve efficient data processing and real-time control. The storage module can be a flash memory or EEPROM, used to store the motion path and creative pattern obtained through the communication module, as well as the locally recorded drawing path data. The motion path includes two-dimensional coordinate data of the pen core, moving speed, start and end point position, etc., and the creative pattern includes geometric shapes, artistic templates or other teaching patterns, suitable for educational or demonstration activities. The input interface supports touch screen or USB port, allowing users to manually input parameters or select preset patterns. The communication module supports Wi-Fi, Bluetooth or Ethernet connection, enabling the acquisition of diversified motion paths and creative patterns from cloud servers, online teaching platforms or mobile applications through the Internet, and uploading the locally drawn motion paths to the cloud for storage and sharing. The output interface includes digital I / O port or PWM signal output, used to send precise position control signals to the motor of the driving component and the motor of the guide mechanism to realize the coordinated movement of the pen core and the paper. The power module is preferably a stabilized power supply circuit, supporting battery or external power supply, ensuring the stability of drawing and data transmission.

[0051] The working principle of the control unit 8 is based on a closed-loop control system: the processor obtains the motion path and creative pattern from the cloud through the communication module, or reads the locally stored path data from the storage module; through the path planning algorithm (such as interpolation algorithm or PID control), the path data is converted into motor control instructions; through the output interface, it is sent to the motor of the driving component to control the movement of the pen core along the length direction of the housing, and the motor of the guide mechanism to drive the transmission of the paper in the vertical direction, realizing the automatic drawing of the creative pattern. During the drawing process, the processor records the actual motion path of the pen core and the paper in real time, generates a path data file, and uploads it to the cloud server through the communication module for other users or devices to download and reuse. The control unit 8 can also integrate sensor feedback interfaces (such as limit sensors connected to the fixed component or encoders of the guide mechanism), to monitor the pen core position and paper transmission status in real time, and dynamically adjust the control parameters to ensure the drawing accuracy.

[0052] In actual use, the operator inputs the drawing task parameters (such as pattern type, path coordinates, transmission speed) into the control unit 8 through the input interface or the communication module, or obtains the preset creative pattern (such as geometric figures or artistic templates for teaching) from the cloud through the Internet; the processor initializes the system according to the obtained motion path, generates a control signal, drives the motor of the driving component through the output interface, and makes the pen refill on the fixed component move along the predetermined path to complete the drawing; at the same time, the motor of the guiding mechanism is controlled to drive the paper to be transmitted smoothly in the vertical direction; after the drawing is completed, the processor records the actual motion path of the drawing, generates a data file and uploads it to the cloud through the communication module for teaching resource sharing or cross-device reuse. The entire process does not require manual intervention, and the control unit 8 ensures the intelligence and efficiency of the drawing through the functions of Internet connection, path recording and cloud sharing, which is suitable for generating teaching materials required in education or demonstration activities.

[0053] The guiding mechanism 6 includes a main shaft 601 and a plurality of knurls 602; the main shaft 601 is rotationally connected with the casing 1, and the plurality of knurls 602 are machined on the main shaft 601 and correspond to the plurality of rollers 402 one by one; the paper passes between the rollers 402 and the main shaft 601, and the knurls 602 are arranged to increase the friction between the rollers 402 and the main shaft 601, avoiding the situation of slipping when transporting the paper.

[0054] The first positioning mechanism 4 includes a plurality of housings 401, a plurality of frame bodies 403, a plurality of rollers 402, a cross beam 404, a contact plate 405, a bracket 406, a handle 407, a shaft body 408, a tension spring 410, a connecting rod 412, a circular wheel 409 and a circular groove 411; the plurality of housings 401 are fixedly connected with the casing 1, the frame body 403 is rotationally connected with the casing 1, and the roller 402 is rotationally connected with the frame body 403. The cross beam 404 is fixedly connected with the frame body 403, the cross beam 404 is fixedly connected with the contact plate 405, the connecting rod 412 can contact the contact plate 405, the connecting rod 412 is fixedly connected with the shaft body 408, the shaft body 408 is rotationally connected with the bracket 406, the bracket 406 is fixedly connected with the casing 1, the shaft body 408 is fixedly connected with the handle 407, and the two ends of the tension spring 410 are connected with the bracket 406 and the contact plate 405 respectively; the circular wheel 409 is rotationally connected to one side of the connecting rod 412 close to the contact plate 405; the circular groove 411 is machined on the upper surface of the contact plate 405 and matches the size of the circular wheel 409.

[0055] The fixed component 3 can include a clamping device for detachably fixing the pen refill, ensuring the stability of the pen refill during the drawing process.

[0056] The first positioning mechanism 4 and the guiding mechanism 6 jointly form a paper conveying channel. A plurality of housings 401 are uniformly distributed along the length direction of the machine shell 1 and are used to support the frame body 403. The frame body 403 is rotationally connected to the machine shell 1 through a hinge or a bearing, so that it can swing relative to the machine shell 1. The round roller 402 is preferably a smooth-surface roller and is rotationally connected to the frame body 403 through a bearing, so as to reduce the frictional damage to the paper.

[0057] The main shaft 601 of the guiding mechanism 6 is driven to rotate by a motor, and the knurl 602 is a convex structure with a surface pattern for increasing the friction with the paper, so as to drive the paper to move forward in a direction perpendicular to the direction of movement of the pen core. The round roller 402 is aligned with the knurl 602 in the vertical direction, and when the paper passes through, the round roller 402 provides a pressing force to ensure that the paper is in close contact with the knurl 602, thereby achieving smooth transmission.

[0058] Further, when the handle 407 is in the high position, the tension spring 410 keeps the contact plate 405 in the initial position by relying on its elastic deformation, the round wheel 409 on the connecting rod 412 is in contact with the upper surface of the contact plate 405, and at this time the round roller 402 is pressed on the main shaft 601 through the linkage of the cross beam 404 and the frame body 403, thereby exerting a pressing force on the paper. When the operator presses down the handle 407, the handle 407 drives the shaft body 408 to rotate, and in turn makes the connecting rod 412 swing, and the round wheel 409 slides along the upper surface of the contact plate 405 and is clamped into the circular groove 411. The structure design of the circular groove 411 ensures that the round wheel 409 can be automatically positioned after being clamped, so that the handle 407 can be kept in the pressed-down position without the need for the operator to continuously hold it. The contact plate 405 is rotated and drives the frame body 403 and the round roller 402 to be lifted through the cross beam 404, and the round roller 402 is separated from the main shaft 601, thereby facilitating the insertion or removal of the paper. The tension spring 410 is stretched when the contact plate 405 is rotated, thereby providing a restoring force. When the operator operates the handle 407 again to make the round wheel 409 disengage from the circular groove 411, the tension spring 410 drives the contact plate 405 to return to the original position, and the round roller 402 re-presses the paper.

[0059] In actual use, the operator first fixes the pen refill 306 on the fixing component 3; then, presses down the handle 407, drives the shaft body 408 and the connecting rod 412 to rotate, and makes the round wheel 409 clamped into the circular groove 411 of the contact plate 405, the contact plate 405 rotates and lifts the frame body 403 and the round roller 402 through the cross beam 404, the clamping structure of the round wheel 409 and the circular groove 411 makes the handle 407 automatically positioned, without the need to continuously hold, at this time, the round roller 402 is lifted to facilitate the paper to be put in, and then the paper is placed between the round roller 402 and the main shaft 601; the operator lifts the handle 407 again to make the round wheel 409 disengaged from the circular groove 411, the restoring force of the tension spring 410 makes the contact plate 405 reset, the round roller 402 is pressed down and the paper is pressed on the main shaft 601; the driving source of the driving component 2 and the guide mechanism 6 is started, the fixing component 3 drives the pen refill 306 to move along the length direction of the casing 1 to draw, at the same time, the main shaft 601 rotates to drive the paper to move forward stably in the direction perpendicular to the movement of the pen refill, so as to realize the automatic drawing of the digital creative drawing paper. The adjusting mechanism ensures the accurate and reliable pressing and lifting action of the round roller 402 through the clamping positioning design of the tension spring 410 and the round wheel 409 and the circular groove 411, is convenient to operate, avoids the deviation or jam of the paper in the transmission process, and improves the drawing efficiency and quality.

[0060] In the embodiment, the fixing component 3 comprises a shell 301, a connecting plate 302, a pen barrel 303, a pen refill 306, a clamping head 304, a screw rod 310, a cap 305, at least three trapezoidal blocks 308, an inner barrel 309 and an outer barrel 307. The shell 301 is fixedly connected with the driving component 2 and is used for receiving the driving force of the driving component 2; the shell 301 is fixedly connected with the connecting plate 302, the connecting plate 302 is slidably connected with the pen barrel 303, the pen refill 306 is arranged in the interior of the pen barrel 303 and is slidably connected with the pen barrel 303, the connecting plate 302 is threadedly connected with the screw rod 310, the clamping head 304 is slidably connected with the screw rod 310, the cap 305 is threadedly connected with the screw rod 310, and one side of the cap 305 can abut against the clamping head 304 to make the clamping head 304 closely contact with the pen barrel 303 to fix the pen refill 306. Preferably, a micro electric push rod is arranged in the interior of the shell 301 to control the lifting of the pen refill 306 and the like, so as to lift the pen refill 306 in the place where drawing is not needed.

[0061] The fixing component 3 further comprises at least three trapezoidal blocks 308, an inner barrel 309 and an outer barrel 307. The inner barrel 309 is fixedly connected with the pen barrel 303, the at least three trapezoidal blocks 308 are rotatably connected with the inner wall of the inner barrel 309 through a hinged mechanism, and the outer barrel 307 is threadedly connected with the outer wall of the inner barrel 309. The outer barrel 307 can contact and drive the at least three trapezoidal blocks 308 to approach each other through rotation, and the at least three trapezoidal blocks 308 approaching each other can clamp the pen refill 306.

[0062] In this embodiment, the fixing component 3 ensures the stable fixation of the pen core 306 through a multi-stage clamping mechanism. The connecting plate 302 is a flat plate structure, provided with a guide groove or sliding rail, allowing the pen barrel 303 to slide in the vertical direction to adjust the height of the pen core 306 relative to the paper.

[0063] The pen barrel 303 is a hollow cylindrical structure, containing the pen core 306 inside and allowing fine adjustment of the pen core 306 within the pen barrel 303 to adapt to different drawing needs through a sliding fit. The screw rod 310 is connected to the connecting plate 302 through a thread, and rotating the screw rod 310 can drive the clamping head 304 to move along the axial direction of the screw rod 310. The clamping head 304 is preferably conical or planar in structure, with one end capable of tightly abutting the end of the pen barrel 303. The cap 305 is threaded onto the end of the screw rod 310, and rotating the cap 305 can make it tightly abut the clamping head 304, thereby applying pressure to the pen barrel 303 through the clamping head 304 to ensure the stability of the pen core 306 during drawing.

[0064] Further, the inner barrel 309 is fixedly connected to the pen barrel 303 through a thread or a buckle, and at least three trapezoidal blocks 308 are uniformly distributed on the inner wall of the inner barrel 309, connected through a hinged mechanism such as a hinge or a pin shaft. The inner side surface of the trapezoidal block 308 is preferably provided with a high-friction material such as a rubber pad or a silicone layer to enhance the clamping force on the pen core 306. The outer barrel 307 is connected to the outer wall of the inner barrel 309 through a thread, and rotating the outer barrel 307 makes it move axially along the inner barrel 309, thereby pressing the outer side slope of the trapezoidal block 308, driving the trapezoidal block 308 to rotate around the hinge point and move closer to each other, finally clamping the pen core 306. This multi-point clamping design can adapt to pen cores 306 of different diameters (such as standard ballpoint pen cores or drawing pen cores) and ensure their stability during high-speed movement, preventing deviation or shaking.

[0065] In actual use, the operator first inserts the pen core 306 into the interior of the pen barrel 303, rotates the outer barrel 307 to make the at least three trapezoidal blocks 308 rotate around the hinge point and clamp the pen core 306; then, rotates the screw rod 310 and the cap 305 to make the clamping head 304 tightly abut the pen barrel 303, further fixing the pen core 306; finally, connects the protective shell 301 with the driving component 2, starts the driving component 2, drives the fixing component 3 to move along the length direction of the machine shell 1, makes the pen core 306 draw accurately on the paper. This fixing component 3 ensures the stability and drawing accuracy of the pen core 306 through a double clamping mechanism (clamping head 304 and trapezoidal block 308), while facilitating the installation and replacement of the pen core, adapting to various drawing needs, improving the versatility and operation convenience of the equipment.

[0066] In the embodiment, the digital creative drawing machine further comprises a second positioning mechanism 7; the number of the guide mechanisms 6 is two, one of which corresponds to the first positioning mechanism 4, and the other of which corresponds to the second positioning mechanism 7, for jointly guiding the stability of the paper in the transmission process. The second positioning mechanism 7 comprises a connecting shaft 701, a torsional spring 702, a side plate 703, a compression roller 704 and a handrail 705. The connecting shaft 701 is fixedly connected with the machine shell 1, the side plate 703 is rotationally connected with the connecting shaft 701, the handrail 705 is fixedly connected with the side plate 703, the compression roller 704 is rotationally connected with the side plate 703 through a bearing, and the torsional spring 702 is sleeved on the connecting shaft 701, and the two ends of the torsional spring 702 are fixedly connected with the side plate 703 and the connecting shaft 701 respectively.

[0067] The second positioning mechanism 7 is arranged in alignment with the corresponding guide mechanism 6 in the vertical direction, and jointly forms an auxiliary channel for the transmission of the paper. The guide mechanism 6 comprises a main shaft 601 and a plurality of knurls 602, the main shaft 601 is rotationally connected with the machine shell 1, and the plurality of knurls 602 are processed on the main shaft 601 and correspond to the compression roller 704 one by one. The compression roller 704 is preferably a smooth surface roller, which is rotationally connected with the side plate 703 through a bearing, so as to reduce the friction damage to the paper. The knurl 602 is a convex structure with a pattern on the surface, which is used to increase the friction force with the paper, and cooperates with the compression roller 704 to ensure the smooth movement of the paper in the transmission process.

[0068] The connecting shaft 701 is preferably a metal shaft fixed on the machine shell 1, which serves to support and position the side plate 703. The side plate 703 is a plate structure, which is preferably two symmetrical plates, respectively located at both ends of the compression roller 704, and rotationally connected with the machine shell 1 through the connecting shaft 701. The torsional spring 702 provides an elastic restoring force, so that the compression roller 704 keeps in close contact with the knurls 602 on the main shaft 601 of the guide mechanism 6 in the normal state, thereby exerting a stable pressing force on the paper. The handrail 705 is fixed on the outer side of the side plate 703, which is convenient for the operator to manually lift the side plate 703, thereby driving the compression roller 704 away from the main shaft 601, facilitating the insertion or removal of the paper.

[0069] In actual use, the operator pulls the handrail 705 to drive the side plate 703 to rotate around the connecting shaft 701, so as to lift the compression roller 704 and overcome the elastic force of the torsional spring 702, and then places the paper between the compression roller 704 and the main shaft 601 of the corresponding guide mechanism 6; after releasing the handrail 705, the restoring force of the torsional spring 702 makes the side plate 703 return to the original position, and the compression roller 704 presses the paper on the knurl 602; the driving source (such as a motor) of the guide mechanism 6 is started, the main shaft 601 rotates to drive the paper to move smoothly in the direction perpendicular to the pen core on the fixed part 3. The second positioning mechanism 7 cooperates with the corresponding guide mechanism 6 to ensure that the paper does not deviate or wrinkle in the transmission process, thereby enhancing the drawing accuracy of the equipment and the stability of the paper transmission.

[0070] In the embodiment, the reversing mechanism 5 is arranged inside the casing 1, which is used to control the rotating directions of the two guide mechanisms 6 to realize the forward or reverse quick switching of the paper during the transmission. The reversing mechanism 5 comprises two first motors 501, two first protrusions 502, a sliding sleeve 503, an outer ring 504, two output shafts 505, two second protrusions 506, a clamping groove 507, a gear 508, two racks 509, a sliding rod 510, a spring 511 and an electric push rod 512.

[0071] The two first motors 501 are fixedly arranged inside the casing 1, and the rotating directions of the two first motors 501 are completely opposite to provide the rotating power in opposite directions. Each first motor 501 is provided with a first protrusion 502 on the output end. The two output shafts 505 are coaxially and fixedly connected with the main shafts 601 of the two guide mechanisms 6, and each output shaft 505 is provided with a second protrusion 506. The inner side of the sliding sleeve 503 is processed with the clamping groove 507 matched in size with the first protrusion 502 and the second protrusion 506, and the sliding sleeve 503 is in sliding connection with the output end of the first motor 501 and the outer wall of the output shaft 505, which is used to switch the meshing state between the first protrusion 502 and the second protrusion 506. The outer ring 504 is in rotating connection with the sliding sleeve 503 through a bearing, and the outer ring 504 is in sliding connection with the two racks 509. The two racks 509 are in meshing connection with the gear 508, and the gear 508 is in rotating connection with the casing 1 through a rotating shaft, and the gear 508 drives the two racks 509 to move in opposite directions when rotating. The electric push rod 512 is fixed on the casing 1, and the output end thereof is connected with one of the racks 509, which can drive the rack 509 to move along the length direction thereof. One end of the sliding rod 510 is fixedly connected with the rack 509, and the other end thereof is in sliding connection with the outer ring 504. The spring 511 is sleeved on the sliding rod 510, and the two ends thereof are fixedly connected with the rack 509 and the outer ring 504 respectively, which is used to provide the reset force.

[0072] In the present embodiment, the reversing mechanism 5 realizes the forward and reverse quick driving of the guiding mechanism 6 through clutching and transmission mechanism. The first motor 501 can provide stable rotary power, and the two first motors 501 are opposite in direction to support quick direction switching. The first protrusion 502 and the second protrusion 506 are radially protruding key-shaped structures, preferably rectangular or trapezoidal cross-section, to ensure reliable engagement with the clamping groove 507. The sliding sleeve 503 is a hollow cylindrical structure, and the clamping groove 507 on the inner side is a groove matched with the first protrusion 502 and the second protrusion 506, which can selectively engage with the first protrusion 502 or the second protrusion 506 through axial sliding. The outer ring 504 is an annular structure, which is rotationally connected with the outer wall of the sliding sleeve 503 through a bearing, ensuring that the outer ring 504 remains relatively stationary when the sliding sleeve 503 rotates. The two racks 509 are linear racks, symmetrically arranged along the width direction of the casing 1, and are in sliding fit with the guide groove of the outer ring 504. The gear 508 is a circular gear, which is fixed on the casing 1 through a rotating shaft and is in engagement with the two racks 509. The rotation of the gear 508 makes the two racks 509 move in opposite directions synchronously, thereby realizing quick switching of the direction of power transmission. The electric push rod 512 is driven by an electric control system, which can accurately control the moving distance of the rack 509. The slide rod 510 and the spring 511 together constitute an elastic adjusting mechanism, and the spring 511 provides a buffer and reset force when the rack 509 moves, avoiding impact on the components caused by the quick switching of the sliding sleeve 503.

[0073] In actual use, the operator drives one of the racks 509 to move along its length direction by controlling the electric push rod 512, and the rack 509 drives the other rack 509 to move in the opposite direction through the gear 508, while each rack 509 drives the corresponding slide rod 510 and the outer ring 504 to move, thereby pushing the corresponding slide sleeve 503 to slide in the axial direction, so that the clamping groove 507 is engaged with the corresponding first protrusion 502 or keeps the sliding connection state with the second protrusion 506. When the clamping groove 507 of one of the slide sleeves 503 is engaged with the corresponding first protrusion 502, the power of the first motor 501 is directly transmitted to the corresponding output shaft 505 to drive the corresponding main shaft 601 to rotate forward, and the paper is transmitted forward; when the clamping groove 507 of the other slide sleeve 503 is engaged with the corresponding first protrusion 502, the power of the first motor 501 is transmitted to the main shaft 601 of the other guide mechanism 6 through the corresponding output shaft 505, and since the directions of rotation of the two first motors 501 are opposite, the switching of the power transmission path realizes the reverse rotation of the main shaft 601, and the paper is transmitted backward. The slide sleeve 503 is always in sliding connection with the second protrusion 506, which ensures the stability in the non-engagement state and the smoothness of switching. The spring 511 ensures the smooth movement of the slide sleeve 503 during switching, reducing mechanical vibration. The reversing mechanism 5 realizes the quick switching of the forward and backward movement of the paper through the opposite rotation of the two first motors 501, the reverse movement of the two racks 509 driven by the gear 508, and the selective engagement mechanism of the slide sleeve 503 and the first protrusion 502, which meets the complex drawing requirements and improves the automation degree and operation flexibility of the equipment. When the clamping groove 507 and the first protrusion 502 are not clamped, the spring 511 is elastically deformed at this time, and when the clamping groove 507 corresponds to the first protrusion 502, the spring 511 loses the support of external force and is elastically deformed to drive the clamping groove 507 to be clamped into the first protrusion 502, thereby realizing transmission.

[0074] The above specific embodiments do not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A digital creative sketching machine, characterized by, The application relates to a pen refill drawing device, which comprises a casing (1), a driving component (2), a fixing component (3), a first positioning mechanism (4), two guide mechanisms (6) and a control unit (8). The driving component (2), the fixing component (3), the first positioning mechanism (4), the two guide mechanisms (6) and the control unit (8) are arranged on the casing (1), the driving component (2) is used for driving the fixing component (3) to move along the length direction of the casing (1), the fixing component (3) is used for fixing a pen refill, the first positioning mechanism (4) and the guide mechanisms (6) are correspondingly arranged in the vertical direction and are used for guiding paper to pass through, and the moving direction of the paper is perpendicular to the moving direction of the pen refill on the fixing component (3) driven by the driving component (2). The control unit (8) is used for acquiring different motion paths and creative patterns through the Internet, automatically acquiring a corresponding motion path when the motion path is needed, controlling the driving component (2) and the two guide mechanisms (6) according to the motion path, and completing automatic drawing of different creative patterns. The two guide mechanisms (6) each comprise a main shaft (601). The control unit (8) is further used for recording the drawn motion path and uploading the motion path to the cloud for sharing. The first positioning mechanism (4) comprises a plurality of housings (401), a plurality of frame bodies (403) and a plurality of round rollers (402). The housings (401) are connected with the casing (1), the frame bodies (403) are rotationally connected with the casing (1), and the round rollers (402) are rotationally connected with the frame bodies (403). The first positioning mechanism (4) further comprises a cross beam (404), a contact plate (405), a support (406), a handle (407), a shaft body (408), a tension spring (410) and a connecting rod (412). The cross beam (404) is connected with the frame body (403), the cross beam (404) is connected with the contact plate (405), the connecting rod (412) can contact the contact plate (405), the connecting rod (412) is connected with the shaft body (408), the shaft body (408) is rotationally connected with the support (406), the support (406) is connected with the casing (1), the shaft body (408) is connected with the handle (407), and the two ends of the tension spring (410) are respectively connected with the support (406) and the contact plate (405). The first positioning mechanism (4) further comprises a round groove (411) and a round wheel (409). The round wheel (409) is rotationally connected to one side of the connecting rod (412) close to the contact plate (405); the round groove (411) can be clamped with the round wheel (409), when the round groove (411) is clamped with the round wheel (409), the handle (407) is kept in a pressed position without needing to be continuously held by an operator. The application further comprises a reversing mechanism (5) arranged in the casing (1). The reversing mechanism (5) comprises two first motors (501), two first protrusions (502), a sliding sleeve (503), an outer ring (504), an output shaft (505), two second protrusions (506) matching the first protrusions (502) in size, a clamping groove (507) matching the first protrusions (502) and the second protrusions (506), a sliding rod (510), a spring (511) and a rack (509), and one gear (508) and one electric push rod (512); The two first protrusions (502) are arranged on the output ends of the two first motors (501) respectively, the directions of rotation of the two first motors (501) are opposite, the two output shafts (505) are connected with main shafts (601) in the two guide mechanisms (6) respectively, the two second protrusions (506) are arranged on the two output shafts (505) respectively, the clamping groove (507) is processed on the inner side of the sliding sleeve (503), the sliding sleeve (503) is in sliding connection with the output end of the corresponding first motor (501) and the outer wall of the corresponding output shaft (505), the outer ring (504) is in rotary connection with the corresponding sliding sleeve (503), and the outer ring (504) is in sliding connection with the corresponding rack (509); wherein the two racks (509) are in meshing connection with the gear (508), the gear (508) is in rotary connection with the shell (1), the sliding rod (510) is connected with the corresponding rack (509), the sliding rod (510) is in sliding connection with the corresponding outer ring (504), the spring (511) is sleeved on the corresponding sliding rod (510), and the two ends of the spring (511) are connected with the corresponding rack (509) and the corresponding outer ring (504) respectively. The electric push rod (512) can drive one of the racks (509) to move along the length direction of the rack (509), the rack (509) drives the other rack (509) to move in the opposite direction through the gear (508), meanwhile, each rack (509) drives the corresponding sliding rod (510) and the outer ring (504) to move, and then drives the corresponding sliding sleeve (503) to slide in the axial direction, so that the clamping groove (507) is in meshing connection with the corresponding first protrusion (502) or keeps the sliding connection state with the second protrusion (506); when the clamping groove (507) of one of the sliding sleeves (503) is in meshing connection with the corresponding first protrusion (502), the power of the first motor (501) is directly transmitted to the corresponding output shaft (505), the first motor (501) drives the corresponding main shaft (601) to rotate in the positive direction, and the paper is transmitted forward. When the clamping groove (507) of another sliding sleeve (503) engages with the corresponding first protrusion (502), the power of the first motor (501) is transmitted to the main shaft (601) of another guide mechanism (6) through the corresponding output shaft (505). Due to the opposite rotation of the two first motors (501), the switching of the power transmission path realizes the reverse rotation of the main shaft (601), and the paper is transmitted backward.

2. The digital creative sketchpad machine of claim 1, wherein, The guide mechanism (6) comprises a plurality of knurls (602); The main shaft (601) is rotatably connected with the shell (1), and a plurality of knurls (602) are formed on the main shaft (601) and correspond to a plurality of circular rollers (402); The paper passes between the circular roller (402) and the main shaft (601).

3. The digital creative drawing machine according to claim 1, wherein the circular groove (411) is formed on the upper surface of the contact plate (405) and matches the size of the circular wheel (409). The fixed component (3) comprises a protective shell (301), a connecting plate (302), a pen barrel (303), a pen core (306), a clamping head (304), a screw rod (310) and a cap (305).

4. The digital creative sketchpad machine of claim 2, wherein, The protective shell (301) is connected with the driving component (2), the protective shell (301) is connected with the connecting plate (302), the connecting plate (302) is slidably connected with the pen barrel (303), the pen core (306) is arranged in the pen barrel (303) and is slidably connected with the pen barrel (303), the connecting plate (302) is threadedly connected with the screw rod (310), the clamping head (304) is slidably connected with the screw rod (310), the cap (305) is connected with the screw rod (310), one side of the cap (305) can abut against the clamping head (304), and at this time, the clamping head (304) abuts against the pen barrel (303). The fixed component (3) further comprises at least three trapezoidal blocks (308), an inner barrel (309) and an outer barrel (307).

5. The digital creative sketchpad machine of claim 4, wherein, The inner barrel (309) is connected with the pen barrel (303), at least three trapezoidal blocks (308) are rotatably connected with the inner wall of the inner barrel (309), the outer barrel (307) is threadedly connected with the outer wall of the inner barrel (309), and the outer barrel (307) can contact and drive at least three trapezoidal blocks (308) to move close to each other, and the at least three trapezoidal blocks (308) that move close to each other can abut against the pen core (306). Further comprising a second positioning mechanism (7); the number of guide mechanisms (6) is two; one of the guide mechanisms (6) corresponds to the second positioning mechanism (7), and the other guide mechanism (6) corresponds to the first positioning mechanism (4); the second positioning mechanism (7) comprises a connecting shaft (701), a torsional spring (702), a side plate (703), a pressure roller (704) and a handrail (705).

6. The digital creative sketchpad machine of claim 4, wherein, ​ The connecting shaft (701) is connected with the shell (1), the connecting shaft (701) is rotatably connected with the side plate (703), the handrail (705) is connected with the side plate (703), the compression roller (704) is rotatably connected with the side plate (703), the torsional spring (702) is sleeved on the connecting shaft (701), and the two ends of the torsional spring (702) are connected with the side plate (703) and the connecting shaft (701) respectively.

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