Intelligent paper shredder

Abstract

The utility model provides an intelligent shredder which can compact the shredded paper in the garbage bag in the machine barrel of the shredder. The shredder comprises a machine head, a bag storage box, an automatic garbage bag sealing device below the bag storage box and a machine barrel. The machine barrel is provided with an exhaust fan which can form negative pressure in the machine barrel and automatically release the single-section bag body in the special plastic bag in the bag storage box into the machine barrel. The machine barrel is also provided with a vibrating disc which can support the single-section bag body and compact the shredded paper in the single-section bag body during vibration. The shredder can not only realize automatic garbage bag replacement and sealing, but also compact the shredded paper in the single-section bag body under the action of the vibrating device, effectively improving the utilization rate of the single-section bag body. In addition, the driving device with synchronous belt transmission and ball screw transmission structure makes the closing of the single-section bag body more compact after the horizontal push rod and the longitudinal push rod are gathered, and the melting and sealing effect and the sealing tightness are good. The shredder has the advantages of reasonable structure, convenient operation and use, hygiene and the like.

Description

Technical Field

[0001] This invention relates to a paper shredder, and more particularly to an intelligent paper shredder with a paper compaction device. Background Technology

[0002] The applicant previously designed a paper shredder, which includes a device that automatically dispenses single-section garbage bags (hereinafter referred to as single-section bags) into the machine bin. After the shredded paper falls into the single-section bag, before it needs to be removed from the machine bin, an automatic sealing device installed inside the machine seals the open end of the single-section bag by heat sealing. The technical solution can be found in the Chinese patent application document (application number: 202610302522.X; publication number: CN 122211710A; title: Automatic garbage bag dispensing and sealing device and its intelligent paper shredder).

[0003] In subsequent practical use, it was found that paper shredders with the above technical solution have the following shortcomings:

[0004] 1) When shredded paper falls into the single-section bag, without human intervention, the shredded paper inside the single-section bag is loosely piled up, with a large porosity and a cone-shaped pile, which greatly reduces the space utilization rate of the single-section bag.

[0005] 2) The automatic sealing mechanism uses spiral springs for both the transverse and longitudinal push rods, resulting in low sealing tightness and poor melting effect.

[0006] 3) The storage bag box is used to store special plastic bags with a length of several meters, which are composed of several single-section bag bodies connected in sequence. When the special plastic bags in the storage bag box are used up, there is no alarm signal output. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide an intelligent paper shredder that can compact the shredded paper scraps in the garbage bag inside the paper shredder bin.

[0008] The technical solution adopted in this invention is as follows: The intelligent paper shredder of the present invention includes a machine head, a storage box for storing special plastic bags, an automatic garbage bag sealing device disposed below the storage box, and a machine drum. The machine drum is equipped with an exhaust fan that can create negative pressure inside and automatically feed single-section bag bodies from the special plastic bags in the storage box into the machine drum. The machine drum is characterized by having a vibrating disc that supports the single-section bag body and compacts the shredded paper inside the single-section bag body during vibration.

[0009] The vibratory feeder comprises, from top to bottom, a tray, a turntable, a drive wheel, and a synchronous motor. The drive wheel is fixed to the output shaft of the synchronous motor. A bearing column extending radially outward is provided on the peripheral wall of the drive wheel. A rolling bearing is fitted on the bearing column. An elastic locking post is provided at the center of the top surface of the drive wheel. The tray and the turntable are mounted on the locking post. The apex of the outer ring of the rolling bearing is higher than the top surface of the drive wheel and abuts against the inner surface of the top plate of the turntable.

[0010] The turntable is bowl-shaped with an isosceles trapezoidal cross-section. The turntable is upside down on the drive wheel. The bowl-shaped opening of the turntable has an outwardly extending rim. A fixing ring is fitted on the outer wall of the turntable and is fixed to the bottom plate inside the machine barrel by screws. The inner diameter of the fixing ring is smaller than the outer diameter of the rim.

[0011] The automatic garbage bag sealing device includes a sealing base and an automatic sealing mechanism for sealing the single-section bag filled with shredded paper by melting and cutting it open. The automatic sealing mechanism consists of a horizontal push rod, a vertical push rod, a garbage bag melting and cutting component, and a drive device that drives the horizontal / vertical push rods to move linearly back and forth. The single-section bag is placed inside the machine drum through the enclosed space formed by the horizontal and vertical push rods. When the enclosed space shrinks and the bag body of the single-section bag at the shredded paper inlet section is gathered together, the garbage bag melting and cutting component is activated to heat-seal the gathered bag body until it melts and cuts open. The drive device consists of a vertical drive mechanism and a horizontal drive mechanism that drive the vertical push rod and the horizontal push rod to move linearly back and forth, respectively.

[0012] Both the longitudinal push rod and the transverse push rod are straight rods. One end of the longitudinal push rod is fixedly connected to the corresponding longitudinal rod transmission component in the drive device through a longitudinal rod fastener. The other end of the longitudinal push rod extends along the long side of the shredded paper outlet. A chute slot hole extending from one end to the other is provided on the longitudinal push rod. One end of the transverse push rod is fixedly connected to the corresponding transverse rod transmission component in the drive device through a transverse rod fastener. The other end extends along the short side of the shredded paper outlet and passes through the chute slot hole.

[0013] The longitudinal drive mechanism includes a longitudinal rod motor, a gear transmission assembly, the longitudinal rod transmission component, a longitudinal rod guide rail, and a longitudinal rod support. The longitudinal rod transmission component is a synchronous belt. A main pulley is provided on the axle of the end gear in the gear transmission assembly, and a driven pulley is provided on the longitudinal rod support. The synchronous belt is sleeved on the main pulley and the driven pulley. One end of the longitudinal rod guide rail is connected to the longitudinal and transverse double rod support located near the longitudinal rod motor, and the other end is connected to the longitudinal rod support located away from the longitudinal rod motor. The longitudinal rod motor drives the gear transmission assembly to rotate, which in turn drives the longitudinal rod synchronous belt to carry the longitudinal rod fastener in a linear reciprocating motion along the longitudinal rod guide rail.

[0014] The longitudinal rod fastener includes a longitudinal rod connecting block and a longitudinal rod slide tube. The inner side of the longitudinal rod connecting block is provided with rectangular teeth that mesh with the longitudinal rod synchronous belt. The longitudinal rod slide tube is fitted on the longitudinal rod guide rail.

[0015] The transverse drive mechanism includes a crossbar motor, a gear transmission assembly, the crossbar transmission component, a crossbar screw, and a crossbar support. The crossbar transmission component is a synchronous belt. A main pulley is provided on the axle of the end gear in the gear transmission assembly, and a driven pulley is provided on the crossbar screw. The synchronous belt is sleeved on the main pulley and the driven pulley. A crossbar guide shaft is sleeved inside the crossbar screw. One end of the crossbar guide shaft is connected to the crossbar support located near the crossbar motor, and the other end of the crossbar guide shaft is connected to the longitudinal and transverse double-bar support. The crossbar fastener is a sleeve nut fitted on the crossbar screw. The sleeve nut and the transverse push rod are integrally structured, and the sleeve nut and the crossbar screw are connected by a ball screw drive pair. The crossbar motor drives the gear transmission assembly to rotate and drives the synchronous belt to drive the crossbar screw to rotate, thereby causing the crossbar fastener to move linearly back and forth along the crossbar screw.

[0016] Only one ball bearing is provided between the sleeve nut and the crossbar screw.

[0017] A viewing hole is provided on the side wall of the storage bag box. An infrared sensor is provided on the sealing base that supports the storage bag box and at a position opposite to the viewing hole to detect whether the special plastic bag inside the storage bag box is exhausted.

[0018] Compared with existing technologies, this invention not only enables automatic bag changing and sealing of garbage bags, but also compacts shredded paper falling into individual bag sections under the action of a vibration device, effectively improving the utilization rate of each bag section. Furthermore, the drive device, employing a synchronous belt drive and ball screw drive structure, ensures a tighter seal of the bag section after the lateral and longitudinal push rods converge, resulting in excellent welding effect and sealing performance. It boasts advantages such as reasonable structure, convenient operation, and hygiene. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the intelligent paper shredder of the present invention.

[0020] Figure 2 yes Figure 1 The overall structure breakdown diagram.

[0021] Figure 3 yes Figure 1 A cross-sectional view of the overall structure.

[0022] Figure 4 yes Figure 2 An exploded view of the automatic sealing device from below.

[0023] Figure 5yes Figure 4 A schematic diagram of the automatic sealing mechanism in the image.

[0024] Figure 6 yes Figure 5 A schematic diagram of the garbage bag fusion assembly.

[0025] Figure 7 yes Figure 5 The diagram shows the exploded view of the lateral drive mechanism and the longitudinal drive mechanism.

[0026] Figure 8 yes Figure 5 A schematic diagram showing the horizontal and vertical push rods in their initial positions.

[0027] Figure 9 yes Figure 8 A schematic diagram of the horizontal and vertical push rods after they have been retracted.

[0028] Figure 10 yes Figure 7 An enlarged schematic diagram of the drive motor and gear transmission assembly.

[0029] Figure 11 This is a cross-sectional view of a garbage bag collecting shredded paper.

[0030] Figure 12 yes Figure 11 Top view.

[0031] Figure 13 yes Figure 1 A schematic diagram of the disassembled vibratory feeder.

[0032] Figure 14 yes Figure 13 A partial cross-sectional view of the vibratory feeder.

[0033] Figure 15 yes Figure 5 A schematic diagram of the crossbar drive mechanism of the lead screw in the diagram.

[0034] Figure 16 yes Figure 15 An enlarged schematic diagram of the ball bearings and sleeve nut in the transverse push rod.

[0035] Figure 17 yes Figure 5 A schematic diagram of the central longitudinal rod drive mechanism and its synchronous belt.

[0036] Figure 18 yes Figure 17 An enlarged schematic diagram of the assembly of the timing belt and longitudinal rod fasteners.

[0037] Figure 19 This is a schematic diagram showing the location of the garbage bag sensor in the bag storage box and the automatic sealing device.

[0038] Figure 20 yes Figure 19 A cross-sectional view of the location of the garbage bag sensor.

[0039] The attached figures are labeled as follows: 1. Machine head, 11. Waste paper inlet, 12. Shredder cutting assembly, 13. Operating panel cover, 131. Forward rotation button, 132. Sealing button, 14. Shredder outlet, 15. Machine drum, 16. Exhaust fan, 17. Door panel, 18. Back panel, 19. Rear cover, 21. Bag storage box, 21. Box body, 22. Frame cover, 23. Frame window, 24. Bag storage groove, 25. Sensor through hole, 46. Automatic sealing device, 41. Sealing base, 42. Base bottom cover, 43. Hollow interlayer, 44. Base window, 45. Support platform, 46. Rear side of base, 47. Garbage bag sensor hole, 58. Automatic sealing mechanism, 51. Horizontal push rod, 511. Horizontal rod fastener, 5111. Sleeve nut, 5112. Ball bearing, 5112. Narrowing guide plate, 513. Horizontal rod guide shaft, 514. Horizontal rod screw, 5141. Spiral track, 52. Longitudinal push rod, 52. Longitudinal rod fastener. 1. Vertical rod connecting block 5211, vertical rod slide tube 5212, slide groove hole 522, convergence angle 523, vertical rod guide slide rail 524, synchronous belt 525, main pulley 526, driven pulley 527, drive motor 53, crossbar motor 531, vertical rod motor 532, crossbar support 55, vertical rod support 56, double vertical and horizontal rod support 57, micro switch 58, gear transmission group 6, driving gear 61, driven gear 62, end gear 63, vibrating plate 7, tray 71, turntable 72, fixing ring 73, drive wheel 74, rolling bearing 75, DC synchronous motor 76, bearing column 77, locking column 78, bowl edge 79, garbage bag fusing assembly 8, fusing ceramic seat 81, fusing silicone block 82, heating wire 83, special plastic bag 9, bag body section 91, single bag body 92, intelligent paper shredder 100. Detailed Implementation

[0040] The present invention will now be described in conjunction with specific embodiments and the accompanying drawings.

[0041] The intelligent paper shredder 100 of the present invention is a further improvement on the existing paper shredder 100 which has an automatic dispensing device for collecting special plastic bags 9 for shredded paper and an automatic sealing device 4 for dispensing the special plastic bags 9 (hereinafter referred to as single bag sections 92). The improvements are as follows:

[0042] 1. A vibration device is installed inside the machine drum 15 to compact the shredded paper that falls into the single-section bag 92.

[0043] 2. A new transmission mechanism is introduced into the drive device that drives the transverse push rod 51 and the longitudinal push rod 52 to move.

[0044] 3. Install a sensor inside the storage box 2 to detect the usage status of the special plastic bag 9.

[0045] The present invention will now be described in detail with reference to the accompanying drawings.

[0046] I. Composition of the Intelligent Paper Shredder 100

[0047] like Figures 1-3 , Figure 11 , Figure 12 As shown, from top to bottom, it includes a shredder head 1, a bag storage box 2, a drum 15, and an exhaust fan 16 installed inside the drum 15 to generate negative pressure in the drum 15. The front of the drum 15 is provided with a door panel 17 (preferably the door panel 17 is hinged to the right edge of the drum 15), and the back panel 18 is provided with a rear cover 19. The control circuit part of the intelligent shredder 100 is located on the back panel 18 of the drum 15.

[0048] 1. Machine head 1.

[0049] The machine head 1 includes a top operating panel cover 13, a control circuit board, a paper feed sensor, a full paper sensor, a waste paper inlet 11 to be shredded, a paper conveying channel, a shredding and cutting assembly 12, a drive system that drives the cutting assembly, and a shredded paper outlet 14 after the paper is shredded, among other conventional features.

[0050] 2. Storage bag box 2.

[0051] like Figure 4 , Figure 11 , Figure 12 As shown, the storage bag box 2 is located below the shredder outlet 14. It can be installed at the bottom of the machine head 1 or on the machine drum 15 of the shredder. It is used to load special plastic bags 9 made of plastic material and in a one-piece form with a length of several meters. The storage bag box 2 can automatically provide single-section bag bodies 92 into the machine drum 15. That is, after the single-section bag body 92 in the machine drum 15 is full of shredded paper and is taken out by a person, it can automatically load a new single-section bag body 92 into the machine drum 15 without manual operation.

[0052] The total length of the special plastic bag 9 used in this invention is preferably about 8-10 meters. The specific length is determined by the depth of the storage groove 24 in the storage bag box 2. The greater the depth, the more it can hold.

[0053] The storage bag box 2 consists of a box body 21 and a side cover 22. The box body 21 is a ring-shaped rectangular frame with a central channel (hereinafter referred to as the side window 23) facing the shredded paper outlet 14 in the middle. The cross-sectional shape of the side of the rectangular frame is a rectangular recessed cavity, which is referred to as the storage bag groove 24 below. The top surface of the storage bag groove 24 is an open opening facing upwards, and the bottom and back surfaces are closed surfaces. The storage bag groove 24 is used to store special plastic bags 9.

[0054] The special plastic bag 9 is stored in the storage groove 24 as follows: The special plastic bag 9 consists of an upper main body section 91 and a lower section. The top surface of the main body section 91 is open, and the bottom surface of the lower section is closed. The main body section 91 is inserted into the storage groove 24 by being opened and folded down from top to bottom and from outside to inside in the length direction. The single-section bag body 92 of the lower section (the single-section bag body 92 refers to a section of special plastic bag 9 of a set length that is opened and accommodated in the machine drum 15) is placed in the machine drum 15 from top to bottom through the frame window 23. This storage method allows the special plastic bag 9 to be placed on the frame of the box body 21 with the inside of the bag facing up and open. The open opening of the inside of the bag is directly opposite the shredded paper outlet 14. The paper scraps falling from the shredded paper outlet 14 fall into the single-section bag body 92 with the bottom surface being closed.

[0055] After placing the special plastic bag 9 into the storage groove 24, the frame cover 22 is then fastened onto the frame of the box body 21. Preferably, the inner side of the frame cover 22 is an open structure that facilitates the removal of the single-section bag body 92 on the special plastic bag 9.

[0056] When the single-section bag 92 placed in the drum 15 is filled with shredded paper and the shredded paper inlet of the single-section bag 92 is melted and sealed, the lower part of the bag body section 91 can be pulled down to pull out the new single-section bag 92 from the storage groove 24 and placed in the drum 15. This setting eliminates the need to manually place the single-section bag 92 each time it is replaced.

[0057] 3. Inventory of 9 special plastic bags.

[0058] To accurately determine the usage status of the entire roll of special plastic bags 9 in storage bag box 2, this invention has been further optimized: such as... Figure 19 , Figure 20 As shown, the rear side 46 of the sealing base 41 is provided with two garbage bag sensing holes 47. Each garbage bag sensing hole 47 is equipped with a set of infrared sensors. The infrared sensors can sense the special plastic bags 9 in the storage box 2 through the sensing holes 47 on the rear side 46 of the base and the sensing through holes 25 on the back of the box body 21. If any set of infrared sensors fails to sense the special plastic bags 9, an alarm signal is issued that the special plastic bags 9 need to be replenished. At the same time, the long shaft of the electromagnet is attracted, the door lock is opened, and a new roll of special plastic bags 9 is loaded into the storage box 2.

[0059] 4. An exhaust fan 16 for creating negative pressure inside the casing 15.

[0060] The exhaust fan 16 is installed on the wall of the barrel 15 inside the barrel. After it is started, a negative pressure is formed inside the sealed barrel 15 (the opening on the top surface of the barrel 15 is sealed by a special plastic bag 9). Under the compression of the ambient air pressure above the special plastic bag 9, a section of the special plastic bag 9 placed in the storage groove 24 is automatically pulled out (i.e., the single-section bag 92) and enters the barrel 15 through the frame window 23. It then expands and spreads out to adhere to the inner wall of the barrel 15.

[0061] 5. Automatic sealing device 4.

[0062] like Figures 1-10 , Figures 15-18 As shown, when no one is operating the automatic sealing device 4 and the single-section bag 92 in the machine drum 15 is full of shredded paper, the shredded paper inlet of the single-section bag 92 is automatically melted and sealed and automatically separated from the bag body section 91. This setting can completely solve the environmental pollution problem of paper dust in the single-section bag 92 spreading into the surrounding space when the operator opens the door panel 17 to take out the single-section bag 92 full of shredded paper.

[0063] like Figures 1-4 As shown, the automatic sealing device 4 is installed on the machine barrel 15 and located below the storage box 2 in the automatic dispensing device for special plastic bags 9. It includes a sealing base 41, an automatic sealing mechanism 5 installed in the sealing base 41, and a base bottom cover 42.

[0064] 1) The sealing base 41, installed at the top of the barrel 15, is a rectangular frame. The four outer walls of the sealing base 41 are a closed structure that is connected as one piece. Its inner wall is divided into an upper side wall and a lower side wall. A hollow interlayer 43 is formed between the inner and outer side walls (e.g., Figure 4 As shown, the bottom surface of the hollow interlayer 43 is open, and the hollow interlayer 43 is used to install the drive device in the automatic sealing mechanism 5.

[0065] like Figure 2 As shown, the upper inner left and right side walls and the back wall are connected to form a closed integral structure and are connected to the corresponding outer side wall through the top wall. The front side of the upper part is open.

[0066] The four inner walls at the bottom are connected as one and enclose a rectangular space with a central channel (hereinafter referred to as the base window 44). The inner walls at the bottom left and right and the inner wall at the rear are connected to the corresponding inner walls at the top through a stepped surface, that is, a support platform 45 for installing the storage bag box 2 is formed between the upper and lower parts. When in use, the storage bag box 2 is inserted into the sealing base 41 from front to back through the front opening at the top of the sealing base 41 and fixed therein. The frame window 23 of the storage bag box 2 is adapted to the size and shape of the base window 44 at the bottom and is vertically opposite to it.

[0067] 2) Automatic sealing mechanism 5.

[0068] like Figures 4-10 As shown, the automatic sealing mechanism 5 is installed at the bottom of the sealing base 41, and the driving device in the automatic sealing mechanism 5 is installed in the hollow interlayer 43.

[0069] The automatic sealing mechanism 5 consists of a horizontal push rod 51, a vertical push rod 52, a garbage bag fusing assembly 8, and a drive device that drives the horizontal / vertical push rod 52 to move linearly back and forth, located below the hollow interlayer 43.

[0070] When the automatic sealing mechanism 5 is set, the single-section bag body 92 is set down through the frame window 23 of the storage bag box 2 and then through the enclosed space formed by the horizontal push rod 51 and the vertical push rod 52. When the enclosed space shrinks and the bag body of the set section on the single-section bag body 92 is gathered together, the garbage bag melting assembly 8 is activated to heat seal the gathered bag body until the seal is melted.

[0071] (1) Longitudinal push rod 52 and transverse push rod 51.

[0072] Both are straight rods, with Figure 4 , Figure 5 , Figures 15-18 For example, the longitudinal direction refers to the depth direction along the shredder drum 15 from front to back (the lower right in the figure is the front, the upper left is the back, and the same applies below), and the transverse direction refers to the width direction along the drum 15 from left to right (the lower left in the figure is the left, the upper right is the right, and the same applies below). The longitudinal push rod 52 can move back and forth along the depth direction, and the transverse push rod 51 can move back and forth along the width direction.

[0073] One end of the longitudinal push rod 52 is fixedly connected to a longitudinal rod fastener 521, which is fixedly connected to a longitudinal rod transmission component in the drive device. The longitudinal push rod 52 moves under the drive of the longitudinal rod transmission component. The other end of the longitudinal push rod 52 extends along the long side of the shredded paper outlet 14, and a groove hole 522 extending from one end to the other is provided on the longitudinal push rod 52.

[0074] One end of the transverse push rod 51 is fixedly connected to a crossbar fastener 511, which is fixedly connected to the crossbar transmission component in the drive device. The transverse push rod 51 moves under the drive of the crossbar transmission component. The other end of the transverse push rod 51 extends along the short side of the shredded paper outlet 14 and passes through the chute slot 522.

[0075] (2) Drive device.

[0076] like Figures 4-10 , Figures 15-18 As shown, the driving device is a longitudinal driving mechanism and a transverse driving mechanism that respectively drive the longitudinal push rod 52 and the transverse push rod 51 to move.

[0077] a. Longitudinal drive mechanism.

[0078] The system includes a longitudinal rod motor 532, a gear transmission assembly 6, a longitudinal rod drive component, a longitudinal rod guide rail 524, and a longitudinal rod support component 56. The longitudinal rod drive component is a synchronous belt 525 (hereinafter referred to as the longitudinal rod synchronous belt). A main pulley 526 is provided on the axle of the end gear 63 in the gear transmission assembly 6, and a driven pulley 527 is provided on the longitudinal rod support component 56. The longitudinal rod synchronous belt is sleeved on the main pulley 526 and the driven pulley 527 and meshes with them. One end of the longitudinal rod guide rail 524 is connected to a longitudinal and transverse double rod support component 57 located near the longitudinal rod motor 532, and the other end is connected to the longitudinal rod support component 56 located away from the longitudinal rod motor 532. The longitudinal rod motor 532 drives the gear transmission assembly 6 to rotate, which in turn drives the longitudinal rod synchronous belt to carry the longitudinal rod fastener 521 to move linearly back and forth along the longitudinal rod guide rail 524.

[0079] The longitudinal rod fastener 521 includes a longitudinal rod connecting block 5211 and a longitudinal rod slide tube 5212 (the longitudinal rod fastener and the longitudinal push rod are preferably an integral structure). The inner side of the longitudinal rod connecting block 5211 is provided with rectangular teeth that mesh with the longitudinal rod synchronous belt. The longitudinal rod slide tube sleeve 5212 is mounted on the longitudinal rod guide slide rail 524.

[0080] b. Lateral drive mechanism.

[0081] The system includes a crossbar motor 531, a gear transmission assembly 6, a crossbar drive component, a crossbar screw 514, and a crossbar support 55. The crossbar drive component is a synchronous belt 525 (hereinafter referred to as the crossbar synchronous belt). A main pulley 526 is provided on the axle of the end gear 63 in the gear transmission assembly 6, and a driven pulley 527 is provided on the crossbar screw 514. The crossbar synchronous belt is sleeved on the main pulley 526 and the driven pulley 527 and meshes with them. A crossbar guide shaft 513 is sleeved inside the crossbar screw 514, and one end of the crossbar guide shaft 513 is connected to a component located near the crossbar motor. On the crossbar support 55 at position 531, the other end of the crossbar guide shaft 513 is connected to the longitudinal and transverse double-bar support 57; the crossbar fastener 511 is a sleeve nut 5111 fitted on the crossbar screw 514, the sleeve nut 5111 and the transverse push rod 511 are an integral structure, and the sleeve nut 5111 and the crossbar screw 514 are connected by a ball screw drive; the crossbar motor 531 drives the gear transmission group 6 to rotate and drives the crossbar synchronous belt to drive the crossbar screw 514 to rotate, thereby causing the sleeve nut 5111 to carry the transverse push rod 51 to move linearly back and forth along the crossbar screw 514.

[0082] Only one ball bearing 5112 is provided between the sleeve nut 5111 and the crossbar screw 514. The sleeve nut 5111 has a semi-spherical recess, and the ball bearing 5112 is placed in the recess. Correspondingly, the crossbar screw 514 has a spiral track 5141 extending from one end to the other end, and the other half of the ball bearing 5112 is embedded in the spiral track 5141.

[0083] The crossbar support 55, the longitudinal support 56, and the dual crossbar support 57 are all fixed at predetermined positions on the sealing base 41. The dual crossbar support 57 can be an integral structure with staggered shaft holes on it to support the other end of the crossbar guide shaft 513 and the other end of the longitudinal guide rail 524, respectively.

[0084] In the transverse drive mechanism, the horizontal rod motor 531 and gear transmission group 6 are located on the left side of the front of the sealing base 41, while in the longitudinal drive mechanism, the vertical rod motor 532 and gear transmission group 6 are located on the right side of the front of the sealing base 41. The drive motor 53 and gear transmission group 6 in both drive mechanisms have the same structure and operation (e.g., Figure 4 (As shown).

[0085] The drive motor 53 is a DC motor, and the gear transmission set 6 is a double gear set (e.g., Figure 10 As shown, it includes a driving gear 61 and several sequentially meshing driven gears 62. The axle of the end gear 63 in this double gear set is provided with the main pulley 526. When the drive motor 53 runs in the forward and reverse directions, the main pulley 526 on the gear transmission set 6 will drive the driven pulley 527 to rotate through the synchronous belt 525, thereby driving the crossbar screw 514 to rotate on the crossbar guide shaft 513. The rotation of the crossbar screw 514 then drives the sleeve nut 5111 to move linearly.

[0086] To move the transverse push rod 51 and the longitudinal push rod 52 to the end of their stroke (at this point, the area enclosed by the transverse push rod 51 and the longitudinal push rod 52 is the set minimum area, such as...) Figure 9 When the movement stops or returns to the initial position from the end of the stroke (as shown), the area enclosed by the transverse push rod 51 and the longitudinal push rod 52 is the set maximum area. Figure 8 As shown, microswitches 58, triggered by the transverse push rod 51 or the longitudinal push rod 52, are respectively installed at the left and right ends of the horizontal lead screw 514 and the front and rear ends of the longitudinal guide rail 524.

[0087] The longitudinal and transverse drive mechanisms of this invention employ synchronous belt and ball screw transmissions. Their advantages are: under the continuous and stable power output of the drive motor and gearbox, the transmission gap of the transmission mechanism is tight, resulting in high transmission accuracy and efficiency, good and stable operation, tighter single-section bag closing, and better melting effect. This avoids the instability caused by changes in material or hardness due to the reliance on spiral springs in the prior art.

[0088] 3) In order to smooth the chip inlet of the single bag 92, the present invention preferably allows the longitudinal push rod 52 to reciprocate along the longitudinal guide rail 524 a set number of times, and the transverse push rod 51 to reciprocate along the transverse screw 513 a set number of times. Then, the corresponding micro switch 58 is activated until the movement stops. At this time, the bag at the chip inlet is neatly gathered, and the garbage bag fusion assembly 8 is activated to fuse and seal the bag at the chip inlet.

[0089] 4) Garbage bag fusion assembly 8.

[0090] When energized, it heats the inlet of the single-section bag 92 filled with shredded paper, causing the plastic bag at the inlet to melt, bond, and break apart. The melting temperature is between 150℃ and 200℃, thereby sealing the inlet of the single-section bag 92. Simultaneously, it separates the single-section bag 92 from the main bag section 91, and the lower end of the separated main bag section 91 also forms a closed structure. The present invention preferably employs the following two solutions:

[0091] (1) Resistance wire fuse assembly Also known as a thermocoupled fusion assembly, such as Figure 5 , Figure 6 As shown, it includes a fusible ceramic seat 81 and a fusible silicone block 82. The surface of the fusible silicone block 82 is covered with Teflon high-temperature tape. It is installed at the front end of the transverse push rod 51 and can move with the transverse push rod 51. The fusible ceramic seat 81 is fixed at the front end of the right side of the sealing base 41. A heating wire 83 is provided on the side of the fusible ceramic seat 81 opposite to the fusible silicone block 82. When the transverse push rod 51 and the longitudinal push rod 52 bring the chip inlet of the single bag body 92 into place, the heating wire 83 is energized and heats up. The bag body at the chip inlet that is gathered together is fused and bonded under the clamping of the heating wire 83 and the fusible silicone block 82 and separates from the main bag body section 91.

[0092] To make the chip inlet of the single-section bag body 92 as compact as possible, a further improvement of the present invention is to provide an arc-shaped closing angle 523 at the right end of the longitudinal push rod 52, and to provide a guide plate 512 at the front end of the transverse push rod 51 to narrow the chip inlet of the single-section bag body 92.

[0093] (2) Electromagnetic heating fuse assembly Also known as a high-frequency heat-sealing and fusing assembly, it includes a horizontal "T"-shaped metal rod (not shown in the figure) and a fusing silicone block 82. The surface of the fusing silicone block 82 is covered with Teflon high-temperature tape. It is installed at the front end of the horizontal push rod 51 and can move with the horizontal push rod 51. The metal rod is fixed at the front end of the right side of the sealing base 41. The horizontal part of the "T" shape is opposite to the fusing silicone block 82. An electromagnetic coil is sleeved on the vertical part of the "T" shape. When the horizontal push rod 51 and the vertical push rod 52 close the chip inlet of the single-section bag body 92 into place, the electromagnetic coil is energized to generate a thermal eddy current in the vertical part of the "T" shape and transfer it to the horizontal part of the "T" shape (equivalent to the heating wire 83) through heat conduction. The bag body at the chip inlet that is gathered together is fused and bonded under the clamping of the horizontal part of the "T" shape and the fusing silicone block 82 and separates from the main body section 91 of the bag.

[0094] 5) Base bottom cover 42, such as Figure 4 As shown, it is fastened to the bottom surface of the sealing base 41 and is used to encapsulate the drive mechanism of the automatic sealing mechanism 5 inside the sealing base 41.

[0095] 6) A sensor is provided inside the drum 15 to detect whether a single-section bag 92 is placed therein, and a sensor is provided on the head 1 to detect when the single-section bag 92 is full of shredded paper.

[0096] When the single-section bag 92 sensing sensor detects that there is no single-section bag 92 in the drum 15, the drive motors 53 in the horizontal and vertical drive mechanisms drive the horizontal push rods 51 and 52 back to their initial positions, i.e., the area enclosed by the horizontal push rods 51 and 52 is the set maximum area. At this time, the exhaust fan 16 is powered on to create a negative pressure inside the drum. The single-section bag 92 on the special plastic bag 9 is pulled out from the bag storage box 2 and extends into the drum 15. The negative pressure inside the drum 15 spreads the single-section bag 92 flat on the inner wall of the drum 15. At this time, the exhaust fan 16 is turned off. The paper shredder starts shredding, and the paper scraps fall into the single-section bag 92 inside the drum 15.

[0097] When the sensor detecting the amount of shredded paper detects that the single-section bag 92 is full of shredded paper, the drive motor 53 in the horizontal drive mechanism and the vertical drive mechanism drives the horizontal push rod 51 and the vertical push rod 52 to gather the shredded paper inlet of the single-section bag 92. After gathering in place, the garbage bag fusion assembly 8 performs heat-fusion sealing treatment on the gathered part of the single-section bag 92.

[0098] The sensor for detecting the single-section bag 92 consists of an infrared emitting diode and an infrared receiving diode. The infrared emitting diode emits infrared light, the single-section bag 92 reflects the infrared light, and the infrared receiving diode receives the reflected light, confirming that the single-section bag 92 has been detected.

[0099] The sensor for detecting a container full of shredded paper consists of an infrared emitting diode and an infrared receiving diode. The infrared emitting diode emits infrared light, the shredded paper reflects the infrared light, and the infrared receiving diode receives the reflected light. When a certain threshold is reached, the container is considered full.

[0100] 6. Vibratory feeder 7.

[0101] like Figures 1-3 , Figure 13 and Figure 14 As shown, the vibratory feeder 7 is installed at the bottom of the machine barrel 15, and it consists of a tray 71, a turntable 72, a fixing ring 73, a drive wheel 74, a rolling bearing 75, a DC synchronous motor 76, and a motor protective cover from top to bottom.

[0102] The tray 71 is used to support the single-section bag body 92 and is set on the bottom plate of the machine barrel 15; the tray 71 and the turntable 72 are fitted on the elastic fastening post 78 on the top surface of the drive wheel 74, and the drive wheel 74 is mounted on the "D"-shaped output shaft of the DC synchronous motor 76 and fastened therebetween by screws.

[0103] A recessed chamber is provided on the bottom plate inside the machine barrel 15. The drive wheel 74 is assembled in the chamber. The DC synchronous motor 76 is installed on the outer surface below the bottom of the chamber. That is, the output shaft of the synchronous motor 76 passes through the bottom of the chamber from bottom to top and is fixedly connected to the drive wheel 74.

[0104] A bearing post 77 extending radially outward is provided on the peripheral wall of the drive wheel 74. The rolling bearing 75 is mounted on the bearing post 77. The apex of the outer ring of the rolling bearing 75 is higher than the top surface of the drive wheel 74. After installation, the apex of the outer ring of the rolling bearing 75 abuts against the periphery of the inner surface of the top plate of the turntable 75. Because the apex of the outer ring of the rolling bearing 75 is higher than the inner surface of the top plate of the turntable 72, a large height difference is created. When the machine head 1 is powered on to shred paper, the DC synchronous motor 76 drives the drive wheel 74 to rotate, and the rolling bearing 75 mounted on the bearing post 77 rotates in the opposite direction, causing the turntable 72 to vibrate up and down in a wave-like manner in the circumferential direction with the locking post 78 in the middle of the drive wheel 74 as the axis.

[0105] The turntable 72 is bowl-shaped, and the cross-sectional shape of the turntable 725 is an isosceles trapezoid. The turntable 72 is upside down on the drive wheel 74. The bowl-shaped opening of the turntable 72 is provided with an outwardly extending bowl edge 79. A fixing ring 73 is fitted on the outer wall of the turntable 72. The fixing ring 73 is fixed to the bottom plate inside the machine barrel 15 by screws. The inner diameter of the fixing ring 73 is smaller than the outer diameter of the bowl edge 79.

[0106] To amplify the vibration effect, a fixing ring 73 is used to enclose the turntable 72, allowing the turntable 72 to undulate circumferentially within the fixing ring 73. A larger tray 71 is added on top of the turntable 72, stacked on its top surface, further amplifying the height difference. The single-section bag 92 is placed tightly against the top surface of the tray 71. Due to the larger area of ​​the tray 71, the vibration effect of the single-section bag 92 containing paper scraps is amplified, and the paper scraps are continuously compacted and spread evenly on the bottom surface of the single-section bag 92, thus saving space in the single-section bag 92.

[0107] II. The control system of the intelligent paper shredder 100 of the present invention includes a microcontroller, a paper feed sensing component, a paper full sensing component, an over-temperature detection circuit, an overload detection circuit, and a motor whose temperature and current are detected by the over-temperature detection circuit and the overload detection circuit, respectively, respectively. It also includes a button display circuit, an electromagnet, a dedicated plastic bag 9 sensing component, an exhaust fan 16, a bag opening / closing component, a heating wire 83, and a power supply, all connected in sequence. Its main functions are as follows:

[0108] III. Work Process The Chinese patent applications mentioned in the background section are essentially the same, and will not be repeated here.

[0109] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the invention to these descriptions. For those skilled in the art, any equivalent substitutions or obvious modifications made without departing from the inventive concept, resulting in identical performance or application, should be considered to fall within the patent protection scope defined by the submitted claims.

Claims

1. A smart paper shredder, comprising a head (1), a storage box (2) for storing special plastic bags (9), an automatic garbage bag sealing device (4) disposed below the storage box (2), and a machine drum (15), wherein the machine drum (15) is provided with an exhaust fan (16) that can create negative pressure inside and automatically release single-section bag bodies (92) of the special plastic bags (9) in the storage box (2) into the machine drum, characterized in that: A vibratory disc (7) is provided inside the drum (15) to support the single-section bag body (92) and to compact the shredded paper inside the single-section bag body (92) during vibration.

2. The intelligent paper shredder according to claim 1, characterized in that: The vibratory feeder (7) comprises, from top to bottom, a tray (71), a turntable (72), a drive wheel (74), and a synchronous motor (76); the drive wheel (74) is fixed to the output shaft of the synchronous motor (76), a bearing column (77) extending radially outward is provided on the peripheral wall of the drive wheel (74), a rolling bearing (75) is fitted on the bearing column (77), and an elastic locking post (78) is provided in the center of the top surface of the drive wheel. The tray (71) and the turntable (72) are mounted on the locking post (78), and the outer ring vertex of the rolling bearing (75) is higher than the top surface of the drive wheel (74) and abuts against the inner surface of the top plate of the turntable (72).

3. The intelligent paper shredder according to claim 2, characterized in that: The turntable (72) is bowl-shaped, and the cross-sectional shape of the turntable (72) is an isosceles trapezoid. The turntable (72) is upside down on the drive wheel (74). The bowl mouth of the turntable (72) is provided with an outwardly extending bowl edge (79). A fixing ring (73) is fitted on the outer wall of the turntable (72). The fixing ring (73) is fixed to the bottom plate inside the machine barrel (15) by screws. The inner diameter of the fixing ring (73) is smaller than the outer diameter of the bowl edge (79).

4. The intelligent paper shredder according to claim 3, characterized in that: The automatic sealing device (4) for garbage bags includes a sealing base (41) and an automatic sealing mechanism (5) for sealing the single-section bag (92) filled with shredded paper. The automatic sealing mechanism (5) consists of a transverse push rod (51), a longitudinal push rod (52), a garbage bag melting assembly (8), and a drive device for driving the transverse / longitudinal push rods to move linearly back and forth. The single-section bag (92) passes through the enclosed space formed by the transverse push rod (51) and the longitudinal push rod (52) and is placed in the machine barrel (15). When the enclosed space shrinks and the bag body of the shredded paper inlet section of the single-section bag (92) is gathered together, the garbage bag melting assembly (8) is activated to heat seal the gathered bag body until it melts. The drive device consists of a longitudinal drive mechanism and a transverse drive mechanism that drive the longitudinal push rod (52) and the transverse push rod (51) to move linearly back and forth, respectively.

5. The automatic garbage bag sealing device according to claim 4, characterized in that: Both the longitudinal push rod (52) and the transverse push rod (51) are straight rods. One end of the longitudinal push rod (52) is fixed to the longitudinal rod transmission component in the corresponding drive device through the longitudinal rod fastener (521). The other end of the longitudinal push rod (52) extends along the long side of the shredded paper outlet (14). A groove hole (522) extending from one end to the other is provided on the longitudinal push rod (52). One end of the transverse push rod (51) is fixed to the transverse rod transmission component in the corresponding drive device through the transverse rod fastener (511). The other end extends along the short side of the shredded paper outlet (14) and passes through the groove hole (522).

6. The automatic garbage bag sealing device according to claim 5, characterized in that: The longitudinal drive mechanism includes a longitudinal rod motor (532), a gear transmission group (6), the longitudinal rod transmission component, a longitudinal rod guide rail (524), and a longitudinal rod support (56). The longitudinal rod transmission component is a synchronous belt (525). A main pulley (526) is provided on the axle of the end gear (63) in the gear transmission group (6), and a driven pulley (527) is provided on the longitudinal rod support (56). The synchronous belt (525) is sleeved on the main pulley (526) and the driven pulley (527). On the wheel (527); one end of the longitudinal rod guide rail (524) is connected to the longitudinal and transverse double rod support (57) located near the longitudinal rod motor (532), and the other end is connected to the longitudinal rod support (56) located away from the longitudinal rod motor (532); the longitudinal rod motor (532) drives the gear transmission group (6) to rotate, and then drives the longitudinal rod synchronous belt (525) to carry the longitudinal rod fastener (521) to move linearly back and forth along the longitudinal rod guide rail (524).

7. The intelligent paper shredder according to claim 6, characterized in that: The longitudinal rod fastener (521) includes a longitudinal rod connecting block (5211) and a longitudinal rod slide tube (5212). The inner side of the longitudinal rod connecting block (5211) is provided with rectangular teeth that mesh with the longitudinal rod timing belt (525). The longitudinal rod slide tube (5212) is fitted on the longitudinal rod guide rail (524).

8. The intelligent paper shredder according to any one of claims 5-7, characterized in that: The transverse drive mechanism includes a crossbar motor (531), a gear transmission group (6), the crossbar transmission component, a crossbar screw (514), and a crossbar support (55). The crossbar transmission component is a synchronous belt (525). A main pulley (526) is provided on the axle of the end gear (63) in the gear transmission group (6), and a driven pulley (527) is provided on the crossbar screw (514). The synchronous belt is sleeved on the main pulley (526) and the driven pulley (527). A crossbar guide shaft (513) is sleeved inside the crossbar screw (514), and one end of the crossbar guide shaft (513) is connected to the crossbar support located near the crossbar motor (531). (55) The other end of the crossbar guide shaft (513) is connected to the longitudinal and transverse double rod support (57); the crossbar fastener (511) is a sleeve nut (5111) fitted on the crossbar screw (514). The sleeve nut (5111) and the transverse push rod (51) are an integral structure. The sleeve nut (5111) and the crossbar screw (514) are connected by a ball screw frame transmission. The crossbar motor (531) drives the gear transmission group (6) to rotate and drives the synchronous belt (525) to drive the crossbar screw (514) to rotate, thereby causing the crossbar fastener (511) to move linearly back and forth along the crossbar screw (514).

9. The intelligent paper shredder according to claim 8, characterized in that: Only one ball bearing (5112) is provided between the sleeve nut (5111) and the crossbar screw (514).

10. The intelligent paper shredder according to claim 9, characterized in that: A viewing hole (25) is provided on the side wall of the storage bag box (2). An infrared sensor is provided on the sealing base (41) used to support the storage bag box (2) and at a position opposite to the viewing hole (25) to detect whether the special plastic bag (9) inside the storage bag box is exhausted.

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