High-rigidity copy product shaft and processing equipment thereof

Abstract

This invention discloses a high-rigidity copier shaft and its processing equipment, relating to the field of shaft structure technology. It addresses the technical problem of copier shafts struggling to balance high rigidity and lightweight requirements. The shaft shaft includes a tube with threaded ends at both ends. Positioning grooves are formed at opposite ends of the two ends. A sleeve is movably mounted on the surface of the shaft shaft, and a support module is located inside the shaft shaft. This invention, through its modular composite shaft structure, facilitates the replacement of small components. The threaded plates support the shaft tube, providing better support than traditional straight plate supports. Furthermore, the symmetrical arrangement of adjacent support units and the symmetrical arrangement of adjacent sets of threaded plates create opposing force couples during shaft rotation, preventing localized stress concentration, offsetting centrifugal vibration and torsional energy, and weakening vibration transmission. This solves the technical problem of copier shafts struggling to balance high rigidity and lightweight requirements.

Description

Technical Field

[0001] This invention relates to the field of shaft structure technology, and more specifically, to a high-rigidity copier shaft and its processing equipment. Background Technology

[0002] The copier shaft is a core transmission component in office equipment such as copiers and printers. It primarily undertakes the functions of power transmission and support during paper feeding and image transfer. Its rigidity and rotational stability directly determine the copying accuracy and service life of the equipment. As office equipment develops towards higher speeds and higher precision, higher requirements are placed on the mechanical properties of the copier shaft.

[0003] Traditional copier shafts are mostly solid or simple hollow shafts. Solid shafts are heavy and have large inertial forces at high speeds, which can easily cause centrifugal vibration and paper feed deviation. Hollow shafts are lightweight, but their support is mainly based on radial support of straight plates. The unsupported parts have low rigidity and are prone to deformation. In view of this, we propose a high-rigidity copier shaft and its processing equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a high-rigidity copier shaft to solve the technical problem that copier shafts are difficult to balance with the requirements of high rigidity and lightweight.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-rigidity copier shaft, comprising a shaft tube, both ends of which are threadedly connected to shaft heads, and each of the two shaft heads having a positioning groove at its opposite end. A sleeve is movably provided on the surface of the shaft tube, and a support module is provided inside the shaft tube. The support module comprises a core rod, both ends of which are fixedly provided with positioning rods movably connected to the positioning grooves. Several support units are provided on the core rod, with adjacent support units arranged symmetrically. Each support unit comprises a core tube slidably disposed on the core rod. Several threaded plates are fixedly connected to one end of the core tube in an annular, equally spaced structure. The threaded plates are connected to the inner edge of the sleeve. An annular plate is fixedly provided on the other end of the core tube, and the threaded plates are fixedly connected to the annular plate. This invention designs a copier shaft with a modular combined shaft structure, which facilitates the replacement of small parts. The shaft tube is supported by threaded plates, which provides better support than traditional straight plate supports. Furthermore, by symmetrically arranging two adjacent support units, the two sets of threaded plates are symmetrically positioned, forming an opposing force couple when the shaft tube rotates. This avoids local stress concentration, cancels out centrifugal vibration and torsional energy, and weakens vibration transmission, thus solving the technical problem of copier shafts being unable to meet the requirements of high rigidity and lightweight design.

[0006] A processing device for high-rigidity copier shafts, applicable to the processing of the aforementioned high-rigidity copier shafts, includes a fixed mold and a moving mold; the moving mold has a plurality of evenly spaced circular grooves at its head end; a core column is rotatably mounted on the circular grooves, the head end of the core column has a circular cavity, a core shaft cavity is located at the center of the circular cavity, the surface of the core shaft cavity has a plurality of threaded cavities in an annular, equally spaced structure, a core slide rod is located at the center of the core shaft cavity, the tail end of the core slide rod is fixedly mounted with a circular rod rotatably connected to the core column, the tail end of the circular rod passes through the core column and is fixedly connected to the moving mold; a ring block is movably mounted inside the core shaft cavity, the ring block is slidably connected to the core slide rod, a plurality of threaded blocks are fixedly mounted on the surface of the ring block, the threaded blocks are movably connected to the threaded cavities; the moving mold is provided with a gear set for driving the plurality of core columns to rotate synchronously, a rotating mechanism is provided at the tail side of the gear set, and the output end of the rotating mechanism is fixedly connected to the input end of the gear set.

[0007] Preferably, any two adjacent circular grooves are connected by a connecting groove; the surface of the circular cavity has four threaded through grooves in an annular, equally spaced structure, the connecting grooves are connected and fitted with the corresponding threaded through grooves, and the threaded through grooves are adapted to the shape of the threaded cavity.

[0008] Preferably, the tail ends of several of the circular grooves are connected through mounting cavity A, and mounting cavity B is provided on the tail side of mounting cavity A.

[0009] Preferably, the connecting groove is provided with a sliding groove communicating with the mounting cavity A, and a top rod is slidably provided on the sliding groove.

[0010] Preferably, the gear set is disposed in the mounting cavity A, and the gear set includes a plurality of rotating rings A, which are rotatably disposed in the mounting cavity A. The head ends of the plurality of rotating rings A are respectively fixedly connected to the tail ends of the plurality of core columns. A toothed ring A is fixedly provided on the rotating ring A, and any two adjacent toothed rings A are meshed and connected through a toothed ring B. A rotating ring B that is rotatably connected to the mounting cavity A is fixedly provided on the toothed ring B.

[0011] Preferably, the annular cavity of the rotating ring B is provided with an arc guide groove at its tail end, and a spiral guide groove is connected to the head end of the arc guide groove. The arc guide groove and the spiral guide groove are connected to form a displacement channel. A movable block is movably provided inside the rotating ring B. The bottom end of the push rod passes through the rotating ring B and is fixedly connected to the movable block. The movable block and the arc guide groove are fixedly connected by a ball notch.

[0012] Preferably, the rotating mechanism includes a rotating ring C and a motor. The rotating ring C is rotatably disposed within the mounting cavity B. The head end of the rotating ring C passes through the mounting cavity A and is fixedly connected to the rotating ring A located at the center. A worm gear is fixedly connected to the rotating ring C, and a worm is meshed with the worm gear. The worm is rotatably connected to the mounting cavity B. The motor is fixedly disposed on the moving mold relative to the worm. The worm passes through the mounting cavity B and is fixedly connected to the output shaft of the motor.

[0013] Preferably, the tail end of the round rod located at the center passes through the corresponding rotating ring A and rotating ring C in sequence and is fixedly connected to the tail end of the mounting cavity B, while the tail ends of the remaining round rods pass through the corresponding rotating rings A and are fixedly connected to the tail end of the mounting cavity A.

[0014] Preferably, the fixed mold is fixed to the fixed end of the mold closing mechanism. The tail end of the fixed mold is evenly provided with a plurality of rotating grooves. A circular block is rotatably provided on the rotating groove. The plurality of circular blocks are movably engaged with the head ends of the plurality of circular grooves. A protrusion is provided in the gap between any two adjacent circular blocks. The plurality of protrusions are movably engaged with the plurality of connecting grooves. A material support hole extending into the fixed mold is provided on the protrusion. A main material hole is provided at the head end of the fixed mold. The plurality of material support holes are all connected to the main material hole.

[0015] The beneficial effects of this invention are: 1. This invention designs a modular combined shaft structure for photocopiers, which facilitates the replacement of small parts. The shaft tube is supported by threaded plates, which provides better support than traditional straight plate support. Furthermore, by symmetrically arranging two adjacent support units, the two sets of threaded plates are symmetrically positioned, forming a reverse torque when the shaft tube rotates. This avoids local stress concentration, cancels out centrifugal vibration and torsional energy, and weakens vibration transmission, thus solving the technical problem of photocopiers being unable to meet the requirements of high rigidity and lightweight design.

[0016] 2. This invention utilizes a structural design for the core column, comprising a circular cavity, a mandrel cavity, a mandrel slide, and several threaded cavity gaps to form an injection cavity. The circular cavity is used for forming the ring plate, the gap between the mandrel cavity and the mandrel slide is used for forming the core tube, and the threaded cavity is used for forming the threaded plate. After forming, rotating the core column causes the supporting unit's molded parts to be unable to rotate due to the rotational limitation of the mandrel slide. Consequently, the supporting unit is passively pushed out by the core column. Furthermore, by designing a ring block and several threaded blocks to form a movable unit, the movable unit and the injection cavity head form a new injection cavity. Rotating the core column again causes the movable unit to move relative to the mandrel slide because it is unable to rotate due to the rotational limitation of the mandrel slide. This allows the injection cavity length to be adjustable. During the filling process of the injection cavity with molten liquid, the injection cavity length can be reduced, thus decreasing the injection cavity volume and compensating for the shrinkage caused by the solidification of the supporting unit's molded parts. The cavity shrinkage generates pressure, forcing the molten liquid to better fill the fine structure of the supporting unit's molded parts, improving the density of the molded parts, reducing pore defects, and further enhancing the rigidity of the assembled copy shaft.

[0017] 3. The present invention also improves upon the structural design of the threaded through groove, so that in the initial state, the connecting groove is connected to the corresponding threaded through groove, and several injection cavities are connected. After the molten liquid is filled, the core is rotated, so that the volume of the injection cavity decreases, and the connecting groove and the corresponding threaded through groove gradually shift until the connecting groove and the corresponding threaded through groove are no longer connected. The molded part preform with independent support unit is formed in several injection cavities, eliminating the need for gate separation and reducing subsequent processing steps.

[0018] 4. Through further design of the rotating ring B, the movable block is limited by the push rod and cannot rotate. When the rotating ring B rotates, the ball defect initially moves in the arc guide groove, and the movable block remains stationary for adjusting the volume of the injection cavity during the injection molding process. When the rotating ring B continues to rotate until the ball defect enters the spiral guide groove, the movable block moves and the push rod moves, and the push rod pushes out the injection waste on the connecting groove. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the high-rigidity copier shaft of the present invention.

[0020] Figure 2 This is a cross-sectional structural diagram of the high-rigidity copier shaft of the present invention.

[0021] Figure 3 This is a schematic diagram of the disassembled structure of the high-rigidity copier shaft of the present invention.

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the support module of the present invention.

[0023] Figure 5 This is a schematic diagram of the overall structure of the processing equipment for the high-rigidity copier shaft of the present invention.

[0024] Figure 6 This is a schematic diagram of the overall structure of the fixed mold and the moving mold of the present invention.

[0025] Figure 7 for Figure 6 An enlarged schematic diagram of the structure of part A.

[0026] Figure 8 This is a schematic diagram of the moving mold, core column, gear set, and rotating mechanism of the present invention.

[0027] Figure 9 This is a cross-sectional structural diagram of the moving mold, core column, gear set, and rotating mechanism of the present invention.

[0028] Figure 10 This is a cross-sectional structural diagram of the moving mold of the present invention.

[0029] Figure 11 This is a partial structural schematic diagram of the moving mold, core column, gear set, and rotating mechanism of the present invention.

[0030] Figure 12 This is a schematic cross-sectional view of the core post of the present invention.

[0031] Figure 13 This is a partial structural breakdown diagram of the moving mold and gear set of the present invention.

[0032] Figure 14 This is a schematic diagram of the rotational state of the gear set according to the present invention.

[0033] Figure 15 This is a partial structural cross-sectional schematic diagram of the core column, gear set, and rotating mechanism of the present invention.

[0034] Explanation of the labels in the diagram: 1. Shaft tube; 2. Fixed mold; 3. Moving mold; 4. Core column; 5. Gear set; 6. Rotating mechanism; 11. Shaft head; 12. Sleeve; 13. Support module; 111. Positioning groove; 130. Positioning rod; 131. Core rod; 132. Core tube; 133. Threaded plate; 134. Ring plate; 21. Round block; 22. Protrusion; 31. Circular groove; 32. Connecting groove; 33. Mounting cavity A; 34. Mounting cavity B; 35. Sliding groove; 36. Push rod; 40. Circular cavity; 41. Mandrel cavity; 42. Threaded cavity; 43. Mandrel slide bar; 44. Round rod; 45. Ring block; 46. Threaded block; 47. Threaded through groove; 51. Rotary ring A; 52. Toothed ring A; 53. Toothed ring B; 54. Rotary ring B; 541. Arc guide groove; 542. Spiral guide groove; 543. Movable block; 544. Ball notch block; 61. Rotary ring C; 62. Worm gear; 63. Worm; 64. Motor. Detailed Implementation

[0035] like Figures 1 to 4 As shown, the present invention relates to a high-rigidity copier shaft, comprising a shaft tube 1, both ends of which are threadedly connected to shaft heads 11, a sleeve 12 movably provided on the surface of the shaft tube 1, and a support module 13 provided inside the shaft tube 1.

[0036] The support module 13 includes a core rod 131, on which several support units are provided, with adjacent support units arranged symmetrically.

[0037] The support unit includes a core tube 132, which is slidably mounted on a core rod 131. One end of the core tube 132 has a ring-shaped, equally spaced structure with several threaded plates 133 fixedly connected to it. The threaded plates 133 are connected to the inner edge of the sleeve 12. The other end of the core tube 132 has a ring plate 134 fixedly mounted on it. The threaded plates 133 and the ring plate 134 are fixedly connected.

[0038] Both ends of the two shaft heads 11 are provided with positioning grooves 111, and both ends of the core rod 131 are fixed with positioning rods 130 that are movably connected to the positioning grooves 111. Through the above-mentioned configuration, the copier shaft becomes a modular combined shaft structure, which facilitates the replacement of small parts. The threaded plate 133 supports the shaft tube 1, which has a better support effect than the traditional straight plate support. Furthermore, by setting two adjacent support units symmetrically, the two sets of threaded plates 133 are symmetrically arranged, forming a reverse force couple when the shaft tube 1 rotates. This avoids local stress concentration, cancels centrifugal vibration and torsional energy, weakens vibration transmission, and solves the technical problem that the copier shaft is difficult to balance with the requirements of high rigidity and lightweight.

[0039] A processing device for high-rigidity copier shafts, suitable for processing the aforementioned high-rigidity copier shafts, such as... Figures 5 to 15 As shown, it includes a housing, injection mechanism, mold closing mechanism, fixed mold 2, moving mold 3, several core pillars 4, gear set 5, and rotating mechanism 6. Figure 5 As shown, the chassis, injection mechanism, and mold closing mechanism of this invention are all prior art and will not be described in detail here.

[0040] In embodiments of the present invention, such as Figure 5 ,as well as Figure 10 As shown, the moving mold 3 is fixed to the movable end of the mold closing mechanism. The head end of the moving mold 3 is evenly provided with several circular grooves 31. Any two adjacent circular grooves 31 are connected by a connecting groove 32. The tail ends of the several circular grooves 31 are connected by a mounting cavity A33. A mounting cavity B34 is provided on the tail side of the mounting cavity A33.

[0041] In embodiments of the present invention, such as Figure 10 As shown, a sliding groove 35 communicating with the mounting cavity A33 is provided on the connecting groove 32, and a push rod 36 is slidably provided on the sliding groove 35.

[0042] In embodiments of the present invention, such as Figure 8 , Figure 9 ,as well as Figure 12 As shown, several core pillars 4 are rotatably mounted on several circular grooves 31. A circular cavity 40 is formed at the head end of each core pillar 4. A mandrel cavity 41 is formed at the center of the circular cavity 40. Several threaded cavities 42 are formed on the surface of the mandrel cavity 41 in an annular, equally spaced structure. A core slide rod 43 is positioned at the center of the mandrel cavity 41. A circular rod 44, rotatably connected to the core pillar 4, is fixedly attached to the tail end of the core slide rod 43. The tail end of the circular rod 44 extends out of the core pillar 4 and is fixedly connected to the moving mold 3. The circular cavity 40, mandrel cavity 41, core slide rod 43, and the gaps between the threaded cavities 42 constitute the injection molding cavity. The circular cavity 40 of this invention is used for forming the ring plate 134. The gap between the mandrel cavity 41 and the core slide rod 43 is used for forming the core tube 132. The threaded cavities 42 are used for forming the threaded plate 133. After forming, rotating the core pillar 4 causes the molded part of the support unit to be unable to rotate due to the rotational limitation of the core slide rod 43. Therefore, the passive core pillar 4 of the support unit is pushed out.

[0043] In embodiments of the present invention, such as Figure 12 As shown, a movable unit is provided inside the injection cavity. The movable unit includes an annular block 45 movably disposed within the mandrel cavity 41. The annular block 45 is slidably connected to the mandrel slide rod 43. Several threaded blocks 46 are fixedly disposed on the surface of the annular block 45, and the threaded blocks 46 are movably connected to the threaded cavity 42. Through the above-described arrangement, the movable unit and the injection cavity head form a new injection cavity. When the mandrel 4 is rotated, the movable unit cannot rotate due to the rotation limit of the mandrel slide rod 43. Therefore, the movable unit moves relative to the mandrel slide rod 43, which makes the length of the injection cavity adjustable. During the process of filling the injection cavity with molten liquid, the injection cavity length can be reduced, making the volume of the injection cavity smaller. This compensates for the shrinkage caused by the solidification of the molded part of the support unit. Furthermore, the shrinkage of the cavity generates pressure, forcing the molten liquid to better fill the fine structure of the molded part of the support unit, improving the density of the molded part, reducing pore defects, and thus improving the rigidity of the assembled copy shaft.

[0044] In embodiments of the present invention, such as Figure 12As shown, the surface of the circular cavity 40 has four threaded through grooves 47 arranged in an annular, equally spaced structure. The connecting groove 32 communicates and engages with the corresponding threaded through groove 47, and the threaded through groove 47 is adapted to the shape of the threaded cavity 42. Through the design of the threaded through grooves 47, in the initial state, the connecting groove 32 is connected to the corresponding threaded through groove 47, and several injection cavities are interconnected. After filling with molten liquid, rotating the core column 4 reduces the volume of the injection cavity, while the connecting groove 32 and the corresponding threaded through groove 47 gradually shift until they are no longer connected. This forms an independent supporting unit for the preform within the several injection cavities, eliminating the need for gate separation and reducing subsequent processing steps.

[0045] In embodiments of the present invention, such as Figure 9 , Figure 11 ,as well as Figure 14 As shown, the gear set 5 is disposed within the mounting cavity A33. The gear set 5 includes several rotating rings A51, which are rotatably disposed within the mounting cavity A33. The head ends of the rotating rings A51 are fixedly connected to the tail ends of several core pillars 4. Gear rings A52 are fixedly mounted on the rotating rings A51. Any two adjacent gear rings A52 are meshed and connected through gear rings B53. A rotating ring B54, which is rotatably connected to the mounting cavity A33, is fixedly mounted on the gear rings B53. Through the structural design of the gear set 5, this invention enables one gear ring A52 to rotate, and the gear ring A52 drives the corresponding gear ring A52 to rotate through the gear rings B53. Therefore, the gear rings A52 rotate in the same direction, and the gear rings B53 all rotate in the opposite direction relative to the gear rings A52. The rotating rings B54 rotate synchronously with the gear rings B53.

[0046] In embodiments of the present invention, such as Figure 13 As shown, the rear end of the ring cavity of the rotating ring B54 is provided with an arc guide groove 541, and the head end of the arc guide groove 541 is connected to a spiral guide groove 542. The arc guide groove 541 and the spiral guide groove 542 are connected to form a displacement channel. A movable block 543 is movably provided inside the rotating ring B54. The bottom end of the push rod 36 passes into the rotating ring B54 and is fixedly connected to the movable block 543. The movable block 543 and the arc guide groove 541 are fixedly connected by a ball notch block 544. By further designing the rotating ring B54, the movable block 543 is limited by the push rod 36 and cannot rotate. When the rotating ring B54 rotates, the ball-end block 544 initially moves within the arc guide groove 541, while the movable block 543 remains stationary for adjusting the volume of the injection cavity during the injection molding process. As the rotating ring B54 continues to rotate until the ball-end block 544 enters the spiral guide groove 542, the movable block 543 moves in conjunction with the push rod 36, and the push rod 36 ejects the injection waste material from the connecting groove 32.

[0047] In embodiments of the present invention, such as Figure 6 ,as well as Figure 11As shown, the rotating mechanism 6 includes a rotating ring C61 and a motor 64. The rotating ring C61 is rotatably disposed within the mounting cavity B34. The head end of the rotating ring C61 passes through the mounting cavity A33 and is fixedly connected to the rotating ring A51 located at the center. A worm gear 62 is fixedly connected to the rotating ring C61, and a worm 63 is meshed with the worm gear 62. The worm 63 is rotatably connected to the mounting cavity B34. The motor 64 is fixedly mounted on the moving mold 3 relative to the worm 63. The worm 63 passes through the mounting cavity B34 and is fixedly connected to the output shaft of the motor 64. In this invention, the output shaft of the motor 64 is controlled to rotate by an external control mechanism, causing the worm 63 to rotate and drive the worm gear 62 to rotate, thereby causing the rotating ring C61 to drive the rotating ring A51 located at the center to rotate.

[0048] Specifically, the tail end of the round rod 44 located at the center passes through the corresponding swivel A51 and swivel C61 in sequence and is fixedly connected to the tail end of the mounting cavity B34. The tail ends of the remaining round rods 44 pass through the corresponding swivel A51 and are fixedly connected to the tail end of the mounting cavity A33.

[0049] In embodiments of the present invention, such as Figure 5 , Figure 6 ,as well as Figure 7 As shown, the fixed mold 2 is fixed to the fixed end of the mold closing mechanism. Several rotating grooves are evenly distributed at the tail end of the fixed mold 2. Circular blocks 21 are rotatably mounted on the rotating grooves. The circular blocks 21 are movably engaged with the heads of several circular grooves 31. A protrusion 22 is provided in the gap between any two adjacent circular blocks 21. The protrusions 22 are movably engaged with several connecting grooves 32. Support holes extending into the fixed mold 2 are provided on the protrusions 22. A main material hole is provided at the head end of the fixed mold 2, and the support holes are all connected to the main material hole. The main material hole of this invention is connected to the output end of the injection mechanism. Molten liquid sequentially enters several injection cavities from the main material hole, the support holes, and the connecting grooves 32.

[0050] Working principle: This embodiment provides a high-rigidity copier shaft and its processing equipment. When in use, the mold closing mechanism is activated, driving the moving mold 3 to move towards the fixed mold 2 and fit tightly. The circular block 21 of the fixed mold 2 is embedded in the circular groove 31 of the moving mold 3, and the protrusion 22 is embedded in the connecting groove 32 to form an injection channel. At this time, the circular cavity 40, the core shaft cavity 41, the core slide rod 43, and the gaps between several threaded cavities 42 constitute the injection cavity. The connecting groove 32 is connected to the threaded through groove 47 of the core column 4. Several injection cavities are connected through the connecting groove 32 to prepare for the filling of molten material. The injection mechanism injects molten material into several interconnected injection cavities through the main material hole, support material hole and connecting groove 32 of the fixed mold 2; After the molten material is filled, the output shaft of the motor 64 is controlled by an external control mechanism to drive the worm 63 to rotate. The worm 63 meshes with and drives the worm wheel 62 and the rotating ring C61 to rotate. The rotating ring C61 drives the rotating ring A51 at the center position to rotate. Through the transmission of the gear set 5, several rotating rings A51 rotate synchronously in the same direction, thereby driving all the core columns 4 to rotate synchronously. When the core column 4 rotates, the movable unit is limited by the rotation of the core slide bar 43 and cannot rotate with it. It can only move along the axial direction of the core slide bar 43, which shortens the length and reduces the volume of the injection cavity to compensate for the shrinkage of the molten material during solidification. At the same time, the pressure generated by the shrinkage of the cavity forces the molten material to fully fill the microstructure of the molded part, improves the density of the molded part, reduces pore defects, and ensures the rigidity of the shaft after subsequent assembly. As the core column 4 continues to rotate, the threaded through groove 47 and the connecting groove 32 on the core column 4 gradually shift until they are completely disconnected. Several injection cavities change from a connected state to an independent state, forming the initial blanks of the molded parts of the support unit. No additional gate separation process is required, simplifying the subsequent processing flow. During this process, the rotating ring B54 rotates in the opposite direction with the toothed ring B53. The movable block 543 is limited by the ejector rod 36 and cannot rotate. The ball notch block 544 moves in the arc guide groove 541 of the rotating ring B54, while the ejector rod 36 remains stationary. After the molded part cools and solidifies, the mold closing mechanism drives the moving mold 3 to separate from the fixed mold 2. The motor 64 is controlled by the external control mechanism to continue rotating, so that the core column 4 continues to rotate. As the core column 4 continues to rotate, the molded part of the support unit is limited by the rotation of the core slide rod 43 and cannot follow the rotation. It is pushed out of the injection cavity by the core column 4 in the opposite direction, thus completing the demolding. When the ball missing block 544 enters the spiral guide groove 542 from the arc guide groove 541 and moves in the spiral guide groove 542, the guiding effect of the spiral guide groove 542 pushes the moving block 543 to move axially, which in turn drives the ejector rod 36 to slide upward along the slide groove 35, and ejects the injection waste in the connecting groove 32. The output shaft of motor 64 is rotated in reverse by an external control mechanism, so that all components return to their initial state.

[0051] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A high-rigidity photocopying shaft, characterized in that, Includes a shaft tube (1), both ends of which are threadedly connected to shaft heads (11), and each of the two shaft heads (11) has a positioning groove (111) at the opposite end. A sleeve (12) is movably provided on the surface of the shaft tube (1), and a support module (13) is provided inside the shaft tube (1). The support module (13) includes a core rod (131), both ends of which are fixedly provided with positioning rods (130) that are movably connected to the positioning groove (111). The core rod (131) is provided with a plurality of support units, and two adjacent support units are arranged symmetrically. The support unit includes a core tube (132), which is slidably disposed on the core rod (131). One end of the core tube (132) has a ring-shaped, equally spaced structure with several threaded plates (133) fixedly connected to it. The threaded plates (133) are connected to the inner edge of the sleeve (12). The other end of the core tube (132) is fixedly provided with a ring plate (134), and the threaded plates (133) are fixedly connected to the ring plate (134).

2. A processing device for a high-rigidity copier shaft, applicable to the processing of the high-rigidity copier shaft as described in claim 1, characterized in that, Including the fixed mold (2) and the moving mold (3); The moving mold (3) has several circular grooves (31) evenly distributed at its head end; A core column (4) is rotatably mounted on the circular groove (31). A circular cavity (40) is opened at the head end of the core column (4). A mandrel cavity (41) is opened at the center of the circular cavity (40). A plurality of threaded cavities (42) are opened on the surface of the mandrel cavity (41) in an annular and equally spaced structure. A core slide rod (43) is provided at the center of the mandrel cavity (41). A round rod (44) is fixedly mounted at the tail end of the core slide rod (43) and rotatably connected to the core column (4). The tail end of the round rod (44) passes through the core column (4) and is fixedly connected to the moving mold (3). A ring block (45) is movably provided inside the mandrel cavity (41). The ring block (45) is slidably connected to the mandrel slide rod (43). A plurality of threaded blocks (46) are fixed on the surface of the ring block (45). The threaded blocks (46) are movably connected to the threaded cavity (42). The moving mold (3) is provided with a gear set (5) for driving several core columns (4) to rotate synchronously. The tail side of the gear set (5) is provided with a rotating mechanism (6), and the output end of the rotating mechanism (6) is fixedly connected to the input end of the gear set (5).

3. The processing equipment for high-rigidity copier shafts according to claim 2, characterized in that, Any two adjacent circular grooves (31) are connected by a connecting groove (32); The surface of the circular cavity (40) has four threaded through grooves (47) with an annular and equally spaced structure. The connecting groove (32) is connected and engaged with the corresponding threaded through groove (47). The threaded through groove (47) is adapted to the shape of the threaded cavity (42).

4. The processing equipment for high-rigidity copier shafts according to claim 3, characterized in that, The tail ends of several of the circular grooves (31) are connected through mounting cavity A (33), and mounting cavity B (34) is provided on the tail side of mounting cavity A (33).

5. The processing equipment for high-rigidity copier shafts according to claim 4, characterized in that, The connecting groove (32) is provided with a sliding groove (35) that communicates with the mounting cavity A (33), and a push rod (36) is slidably provided on the sliding groove (35).

6. The processing equipment for high-rigidity copier shafts according to claim 5, characterized in that, The gear set (5) is disposed in the mounting cavity A (33). The gear set (5) includes several rotating rings A (51). The rotating rings A (51) are rotatably disposed in the mounting cavity A (33). The head ends of several rotating rings A (51) are respectively fixedly connected to the tail ends of several core columns (4). A toothed ring A (52) is fixedly disposed on the rotating ring A (51). Any two adjacent toothed rings A (52) are meshed and connected through a toothed ring B (53). A rotating ring B (54) is fixedly disposed on the toothed ring B (53) and rotatably connected to the mounting cavity A (33).

7. The processing equipment for high-rigidity copier shafts according to claim 6, characterized in that, The swivel ring B (54) has an arc guide groove (541) at the tail end of the ring cavity. The head end of the arc guide groove (541) is connected to a spiral guide groove (542). The arc guide groove (541) and the spiral guide groove (542) are connected to form a displacement channel. A movable block (543) is movably provided inside the swivel ring B (54). The bottom end of the push rod (36) is inserted into the swivel ring B (54) and fixedly connected to the movable block (543). The movable block (543) and the arc guide groove (541) are fixedly connected by a ball notch block (544).

8. The processing equipment for high-rigidity copier shafts according to claim 6, characterized in that, The rotating mechanism (6) includes a rotating ring C (61) and a motor (64). The rotating ring C (61) is rotatably disposed in the mounting cavity B (34). The head end of the rotating ring C (61) passes through the mounting cavity A (33) and is fixedly connected to the rotating ring A (51) located at the center. A worm wheel (62) is fixedly connected to the rotating ring C (61). A worm (63) is meshed with the worm wheel (62). The worm (63) is rotatably connected to the mounting cavity B (34). The motor (64) is fixedly disposed on the moving mold (3) relative to the worm (63). The worm (63) passes through the mounting cavity B (34) and is fixedly connected to the output shaft of the motor (64).

9. The processing equipment for high-rigidity copier shafts according to claim 8, characterized in that, The tail end of the round rod (44) located at the center passes through the corresponding rotating ring A (51) and rotating ring C (61) in sequence and is fixedly connected to the tail end of the mounting cavity B (34). The tail ends of the remaining round rods (44) pass through the corresponding rotating rings A (51) and are fixedly connected to the tail end of the mounting cavity A (33).

10. The processing equipment for high-rigidity copier shafts according to claim 3, characterized in that, The fixed mold (2) is fixed at the fixed end of the mold closing mechanism. The tail end of the fixed mold (2) is evenly provided with a number of rotating grooves. A round block (21) is rotatably provided on the rotating groove. The round blocks (21) are respectively movably engaged with the head ends of the round grooves (31). A protrusion (22) is provided in the gap between any two adjacent round blocks (21). The protrusions (22) are respectively movably engaged with the connecting grooves (32). A material support hole extending into the fixed mold (2) is provided on the protrusion (22). A main material hole is provided at the head end of the fixed mold (2). The material support holes are all connected to the main material hole.

Images