Glasses leg bending equipment for metal glasses frame

Abstract

The invention discloses glasses leg bending equipment for a metal glasses framework, the glasses leg bending equipment comprises a fixed seat, a mounting assembly, a processing assembly and an adjusting assembly, one side of the fixed seat is fixedly connected with a fixed frame I, the other side of the fixed seat is fixedly connected with a fixed frame II, the center of the fixed seat is penetrated and rotatably connected with a driving shaft, and the driving shaft is rotatably connected with the processing assembly. One end of the driving shaft penetrates through and is fixedly connected with a handle, the top end of the handle penetrates through and is rotationally connected with a first connecting rod, the other end of the first connecting rod is in transmission connection with a second connecting rod and a third connecting rod, and the side, away from the handle, of the fixing base is fixedly connected with a fixing plate. By arranging the machining assembly, automatic installation between the auxiliary glasses legs and the glasses frame is achieved, and the bending positions of the glasses legs can be freely adjusted; by arranging the bending assembly, local friction heating and repeated small-angle bending are carried out on the bent position while bending is carried out; by arranging the adjusting assembly, the bending angle of the glasses legs can be freely adjusted, and the operation is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of glasses production and processing, in particular to a temple bending device for a metal glasses frame. Background Art

[0002] Temple bending equipment is generally used in the manufacture of metal and plastic frames to ensure that the temples of metal eyeglass frames conform to the wearer's ear contour, thereby improving wearing comfort and stability.

[0003] After searching, the Chinese patent with publication number CN114669685B includes an operating table, a limit clamping device for supporting and clamping the eyeglass body, and a pair of automatic bending devices for bending the temples, the limit clamping device is fixedly arranged on the operating table, the pair of automatic bending devices are symmetrically arranged on both sides of the limit clamping device on the operating table, and an auxiliary temple mounting device is also provided at a position opposite to the limit clamping device on the operating table, the auxiliary temple mounting device includes a mounting table and a pair of driving cylinders, a pair of sliders are provided at the bottom of the mounting table, a pair of slide grooves matching the sliders are opened on the operating table, a pair of feed ports and a pair of mounting ports are symmetrically opened on the mounting table, the feed port and the mounting port are connected to each other, a ring-shaped baffle is fixedly provided at a position in the mounting port connected to the feed port, and a cover with a push spring is embedded on the feed port.

[0004] In the above patent, an operating table, a limit clamping device and an automatic bending device are used to realize the downward bending and inward bending of the eyeglass frame; an auxiliary temple mounting device, a feed port, a mounting port and a ring-shaped baffle are used to realize the automatic installation and synchronous bending of the auxiliary temples, which greatly shortens the production process.

[0005] However, the above patent does not consider the material rebound problem when bending the temples and auxiliary temples downward. For occasions that require customized precision, the rebound of the temples and auxiliary temples will cause the angle and curvature after bending to fail to accurately meet the design requirements, thereby causing shape precision deviation and appearance quality problems of the eyeglass frame; on the other hand, the above patent controls the bending angle of the temples and auxiliary temples by replacing the bending module. The replacement process is cumbersome and it is difficult to achieve real-time adjustment of the bending angle during the bending process. Summary of the invention

[0006] The purpose of the present invention is to provide a temple bending device for a metal eyeglass frame, which has the advantages of synchronous bending and free adjustment, and solves the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a temple bending device for a metal eyeglass frame, comprising a fixing seat and mounting components arranged on both sides of the fixing seat, a processing component arranged at the top of the middle part of the fixing seat, and an adjusting component arranged below the processing component, one side of the fixing seat is fixedly connected to a fixing frame 1, the other side of the fixing seat is fixedly connected to a fixing frame 2, the tops of the fixing frames 1 and 2 are both provided with guide rails, a driving shaft driven by a motor is penetrated and rotatably connected to the center of the fixing seat, one end of the driving shaft is penetrated and fixedly connected to a handle, the top of the handle is penetrated and rotatably connected to a connecting rod 1 through a pin shaft, the other end of the connecting rod 1 is respectively connected to a connecting rod 2 and a connecting rod 3 through a pin shaft, a fixing plate is fixedly connected to the side of the fixing seat away from the handle, and the fixing plate is penetrated and rotatably connected by the end of the driving shaft away from the handle; The installation assembly includes a positioning mechanism for inwardly bending the temples and adjusting the bending position of the temples, and a traveling mechanism for assisting the automatic installation of the temples; the positioning mechanism is transmission-connected to the second connecting rod through a pin shaft, and the traveling mechanism is transmission-connected to the third connecting rod through a pin shaft; The processing assembly includes a heating mechanism for performing local friction on the bending part of the temple and a bending mechanism for bending the temple downward. The heating mechanism penetrates and is rotatably connected to the fixing plate. The bending mechanism is fixedly connected to the fixing plate and is transmission-connected to the heating mechanism.

[0008] Preferably, the positioning mechanism includes a slider 1 slidably connected to a guide rail of a fixed frame, positioning plates are fixedly connected to both sides of the slider 1, a limiting groove for placing the eyeglass frame is provided on the positioning plate, the top of the slider 1 is fixedly connected to a buckle that passes through the fixed frame 1, the slider 1 is penetrated and threaded with a threaded shaft, the threaded shaft is located in the guide rail of the driving shaft and one end passes through and is rotatably connected to the driving shaft, the top of the positioning plate is fixedly connected to a limiting wheel, the top of the positioning plate extends outward near the position of the limiting wheel and is fixedly connected to an inner folding wheel for folding the temple inward.

[0009] Preferably, the traveling mechanism includes a slider 2 slidably connected to a guide rail of a fixed frame, both ends of the slider 2 are fixedly connected to a traveling plate, a material guide groove as high as the buckle is provided near the top of the traveling plate, one side of the traveling plate is penetrated by and fixedly connected to a limiting seat, the top of the limiting seat is fixedly connected to a return spring arranged inside the traveling plate, and the top of the return spring is fixedly connected to a material guide inclined plate located inside the traveling plate and blocking the material guide groove.

[0010] Preferably, the heating mechanism includes a transmission shaft that passes through and is rotatably connected to a fixed plate near the top position, the end of the transmission shaft pointing to the fixed plate is connected to a chain through a gear transmission, the other end of the chain is transmission-connected to a transmission wheel and the transmission wheel passes through and is fixedly connected to the outer contour of the driving shaft, half gears are passed through and fixedly connected to the outer contour of the transmission shaft on both sides near the middle section, a transmission belt is transmission-connected to the outer contour of the middle section of the transmission shaft, the other end of the transmission belt is transmission-connected to a positioning shaft and the positioning shaft passes through and is rotatably connected to a position on the fixed plate at the same height as the buckle, and friction wheels are passed through and fixedly connected to the outer contour of the positioning shaft at positions corresponding to the half gears.

[0011] Preferably, the bending mechanism includes a rack that is intermittently meshed and transmission-connected to the outer contour of the half gear, the top end of the rack is penetrated by and slidably connected to a fixed shaft, the top end of the fixed shaft is fixedly connected to an extension rod, and the extension rod is fixedly connected to one side of the top end of the fixed plate, a tension spring that is sleeved on the outer contour of the fixed shaft is fixedly connected between the rack and the extension rod, the bottom end of the rack is fixedly connected to a compression spring, and the bottom end of the compression spring is fixedly connected to a bending wheel for performing bending operations under the temples.

[0012] Preferably, the adjusting assembly includes an adjusting shaft that passes through and is rotatably connected to a fixed plate near a transmission shaft, a guide wheel is passed through and fixedly connected to the outer contour of the adjusting shaft, a fixing sleeve that is fixedly connected to the fixing plate is sleeved on the outer contour of the adjusting shaft located between the fixing plate and the guide wheel, a plurality of fixedly connected limit plates are annularly distributed at equal intervals on the outer contour of the fixing sleeve, a telescopic plate is slidably connected to the inside of the limit plate, an end of the telescopic plate that points to the fixing sleeve is fixedly connected to a guide pin that extends toward the guide wheel, and an end of the telescopic plate that is away from the fixing sleeve is fixedly connected to an arc plate.

[0013] Preferably, the surface of the guide wheel is provided with guide grooves whose number corresponds to the telescopic plates and the guide pins are drivingly connected to the inside of the guide grooves, the number of the arc plates is corresponding to the telescopic plates and all the arc plates are assembled into a wheel-shaped structure.

[0014] Preferably, the outer contours of the limiting wheel, the inner folding wheel, the friction wheel, the bending wheel and the arc plate are all made of rubber material.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides a processing component to realize automatic installation between the auxiliary temple and the eyeglass frame, and can freely adjust the bending position of the temple, further improving the applicability of the device.

[0016] 2. The present invention provides a bending assembly to perform local friction heating on the bending part and repeatedly perform small-angle bending during bending, thereby effectively eliminating the rebound stress generated during bending and further improving the bending accuracy and processing quality of the device.

[0017] 3. The present invention provides an adjustment component, so that the bending angle of the temples can be freely adjusted and the operation is convenient, thereby further improving the applicability of the device and effectively ensuring the degree of automation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a cross-sectional view of the main structure of the present invention; Figure 3 This is an exploded schematic diagram of the fixing seat structure of the present invention; Figure 4 It is a schematic diagram of the positioning mechanism structure of the present invention; Figure 5 It is a schematic diagram of the structure of the traveling mechanism of the present invention; Figure 6 It is a schematic diagram of the positional relationship between the processing component and the adjusting component of the present invention; Figure 7 It is a schematic diagram of the heating mechanism and the bending mechanism of the present invention; Figure 8 This is an exploded schematic diagram of the regulating assembly structure of the present invention; Fig. 9 It is the overall workflow diagram of the present invention.

[0019] In the figure: 1, fixed seat; 11, fixed frame 1; 12, fixed frame 2; 13, driving shaft; 14, handle; 15, connecting rod 1; 16, connecting rod 2; 17, connecting rod 3; 18, fixed plate; 2, positioning plate; 21, slider 1; 22, buckle; 23, limit wheel; 24, inner folding wheel; 25, threaded shaft; 3, travel plate; 31, guide trough; 32, slider 2; 33, limit seat; 34, reset spring; 35 , guide inclined plate; 4, transmission shaft; 41, chain; 42, transmission wheel; 43, half gear; 44, transmission belt; 45, positioning shaft; 46, friction wheel; 5, rack; 51, fixed shaft; 52, tension spring; 53, extension rod; 54, compression spring; 55, bending wheel; 6, adjustment shaft; 61, guide wheel; 62, fixed sleeve; 63, limit plate; 64, telescopic plate; 65, guide pin; 66, arc plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1: See also Figures 1 to 9 The present invention provides a technical solution: a temple bending device for a metal eyeglass frame, comprising a fixing seat 1 and mounting components arranged on both sides of the fixing seat 1, a processing component arranged at the top of the middle part of the fixing seat 1, and an adjusting component arranged below the processing component, characterized in that: a fixing frame 11 is fixedly connected to one side of the fixing seat 1, a fixing frame 2 12 is fixedly connected to the other side of the fixing seat 1, guide rails are provided on the tops of the fixing frames 11 and 12, a driving shaft 13 driven by a motor is penetrated and rotatably connected at the center of the fixing seat 1, a handle 14 is penetrated and fixedly connected at one end of the driving shaft 13, a connecting rod 15 is penetrated at the top of the handle 14 and rotatably connected to the connecting rod 15 through a pin, and the other end of the connecting rod 15 is respectively connected to the connecting rod 2 16 and the connecting rod 3 17 through a pin, a fixing plate 18 is fixedly connected to the side of the fixing seat 1 away from the handle 14, and the fixing plate 18 is penetrated and rotatably connected by the end of the driving shaft 13 away from the handle 14; The installation assembly includes a positioning mechanism for inwardly bending the temples and adjusting the bending position of the temples, and a traveling mechanism for assisting the automatic installation of the temples; the positioning mechanism is transmission-connected to the second connecting rod 16 through a pin shaft, and the traveling mechanism is transmission-connected to the third connecting rod 17 through a pin shaft; The processing assembly includes a heating mechanism for performing local friction on the bending part of the temple and a bending mechanism for bending the temple downward. The heating mechanism penetrates and is rotatably connected to the fixing plate 18. The bending mechanism is fixedly connected to the fixing plate 18 and is transmission-connected to the heating mechanism.

[0022] As shown in the figure, in this device, the fixed seat 1, the fixed frame 11, the fixed frame 12 and the fixed plate 18 together constitute the main frame structure, wherein the fixed frame 11 and the fixed frame 12 respectively limit and guide the positioning mechanism and the moving mechanism; the driving shaft 13, the handle 14, the connecting rod 15, the connecting rod 2 16 and the connecting rod 3 17 together constitute the driving structure of the equipment, and the driving shaft 13 controlled by the motor drives the handle 14 to rotate, and the handle 14 further drives the connecting rod 15 to rise and fall, and at the same time, the connecting rod 2 16 and the connecting rod 3 17 respectively control the positioning mechanism and the moving mechanism.

[0023] The traveling mechanism in the installation assembly is responsible for adjusting the position of the eyeglass frame to realize the adjustment function of the bending position of the temples, and at the same time completes the internal bending operation of the frame; the traveling mechanism is responsible for assisting the installation operation between the temples and the eyeglass frame, and at the same time, the traveling mechanism continues to operate after the installation operation is completed to complete the auxiliary work of the temple bending operation.

[0024] The heating mechanism in the processing component is responsible for local friction heating of the bending part of the temples to reduce the material hardness and yield strength of the frame and auxiliary temples at the bending part, making the material more susceptible to plastic deformation and thus improving the efficiency and work quality of subsequent bending operations. At the same time, during the heating process, the stress inside the material can be released to a certain extent, reducing residual stress and thus reducing springback. The bending mechanism is responsible for the downward bending operation of the frame and auxiliary temples, and reduces the accumulation and concentration of internal stress of the material during the bending process through repeated bending and pulling, thereby further reducing springback and making the material fully fit the contour of the equipment to improve the bending quality of the setting.

[0025] The adjustment component is responsible for controlling the adjustment of the bending angle of the frame and auxiliary temples. By rotating the adjustment component forward and backward, it expands and contracts synchronously with the contour of the material, further affecting the maximum downward pressure position of the bending mechanism, thereby changing the bending angle of the frame and auxiliary temples.

[0026] Embodiment 2: See also Figure 3-Figure 5 This embodiment further illustrates the following on the basis of the first embodiment: The positioning mechanism includes a slider 21 slidably connected to the guide rail of the fixed frame 11, and positioning plates 2 are fixedly connected on both sides of the slider 21. A limiting groove for placing the eyeglass frame is provided on the positioning plate 2. The top of the slider 21 is fixedly connected to a buckle 22 that penetrates the fixed frame 11. The slider 21 is penetrated and screwed with a threaded shaft 25. The threaded shaft 25 is located in the guide rail of the driving shaft 13 and one end penetrates and is rotatably connected to the driving shaft 13. The top of the positioning plate 2 is fixedly connected to a limiting wheel 23. The top of the positioning plate 2 extends outward near the position of the limiting wheel 23 and is fixedly connected to an inner folding wheel 24 for folding the temple inward.

[0027] The traveling mechanism includes a slider 32 slidably connected to the guide rail of the fixed frame 11, both ends of the slider 32 are fixedly connected to a traveling plate 3, a material guide groove 31 as high as the buckle 22 is opened near the top of the traveling plate 3, one side of the traveling plate 3 is penetrated and fixedly connected to a limiting seat 33, the top of the limiting seat 33 is fixedly connected to a return spring 34 arranged inside the traveling plate 3, and the top of the return spring 34 is fixedly connected to a material guide inclined plate 35 located inside the traveling plate 3 and blocking the material guide groove 31.

[0028] Before the equipment is operated, the metal eyeglass frame and the auxiliary temples are first installed on the mounting assembly respectively. The middle part of the eyeglass frame is snap-fitted by the buckle 22 and the outer frame at the lenses on both sides is extended into the limiting groove of the positioning plate 2. The temples on both sides of the frame are passed through the limiting wheels 23 and the inner folding wheels 24 in turn. At this time, the limiting wheels 23 and the inner folding wheels 24 are respectively held on both sides of the temples; when the position of the frame needs to be adjusted, the threaded shaft 25 is rotated. At this time, the slider 21 has a tendency to drive the positioning plate 2 to rotate under the action of the screw connection, and the guide rail setting of the fixed frame 11 limits the rotation of the slider 21. Then, the slider 21 and the positioning plate 2 begin to move along the axial direction of the threaded shaft 25 under the rotation of the threaded shaft 25 and drive the eyeglass frame to move together, while the position of the processing assembly remains unchanged, that is, there is relative movement between the eyeglass frame and the processing assembly, thereby realizing the adjustment of the bending position of the temples.

[0029] It should be noted that since the limiting wheel 23 and the inner folding wheel 24 are respectively pressed against the two sides of the temple, the temple has a tendency to bend inward under the limiting and squeezing action of the limiting wheel 23 and the inner folding wheel 24. This tendency is further increased in the subsequent bending operation, thereby realizing the inward bending operation of the temple.

[0030] On the other hand, the auxiliary temples are intermittently conveyed to the inside of the material guide groove 31 by an external conveying device. The conveying device belongs to the prior art and is not elaborated in detail. During the conveying process, the auxiliary temples squeeze the material guide ramp 35 and the inclined surface setting of the material guide ramp 35 causes the material guide ramp 35 to slide downward and compress the return spring 34. After the auxiliary temples are conveyed into the inside of the material guide groove 31, the return spring 34 rebounds quickly and causes the material guide ramp 35 to block the material guide groove 31 again, thereby avoiding the auxiliary temples from being squeezed by the frame during subsequent installation operations, causing them to fall off and causing installation failure.

[0031] Then, the motor is started and drives the driving shaft 13 and the handle 14 to rotate. The rotation of the handle 14 further causes the connecting rod 15 to rise and fall. The rising and falling of the connecting rod 15 is achieved by pulling the connecting rod 2 16 and the connecting rod 3 17 on both sides. Since the connecting rod 2 16 is connected to the positioning plate 2 through transmission, the positioning plate 2 cannot move freely under the cooperation of the slider 1 21 and the threaded shaft 25, that is, the connecting rod 2 16 cannot pull the positioning plate 2 to move synchronously, while the connecting rod 3 17 on the other side pulls the traveling plate 3 and the material guide trough 31, thereby causing the traveling mechanism to reciprocate along the guide rail axis of the fixed frame 2 12. At this time, relative movement occurs between the frame and the auxiliary temples, and the auxiliary temples gradually approach the frame to realize the installation operation of the two.

[0032] It should be noted that, since the temples of the frame are bent inward at a small angle under the support of the limit wheel 23 and the inner folding wheel 24, that is, there is an angle difference between the temples and the auxiliary temples when they are installed, thereby ensuring that the auxiliary temples are smoothly pulled out of the guide groove 31 when the traveling mechanism moves away from the frame, thereby increasing the tightness between the frame and the auxiliary temples to improve the installation quality of the equipment.

[0033] Embodiment three: See also Figure 6-Figure 7 This embodiment further illustrates the following on the basis of the second embodiment: The heating mechanism includes a transmission shaft 4 that passes through and is rotatably connected to a fixed plate 18 near the top position, the end of the transmission shaft 4 pointing to the fixed plate 18 is connected to a chain 41 through a gear transmission, the other end of the chain 41 is transmission-connected to a transmission wheel 42, and the transmission wheel 42 passes through and is fixedly connected to the outer contour of the drive shaft 13, half gears 43 are passed through and fixedly connected to both sides of the outer contour of the transmission shaft 4 near the middle position, a transmission belt 44 is transmission-connected to the outer contour of the middle section of the transmission shaft 4, the other end of the transmission belt 44 is transmission-connected to a positioning shaft 45, and the positioning shaft 45 passes through and is rotatably connected to a position on the fixed plate 18 at the same height as the buckle 22, and friction wheels 46 are passed through and fixedly connected to the outer contour of the positioning shaft 45 at positions corresponding to the half gears 43.

[0034] The bending mechanism includes a rack 5 that is intermittently meshed and transmission-connected to the outer contour of the half gear 43, the top of the rack 5 is penetrated by and slidably connected to a fixed shaft 51, the top of the fixed shaft 51 is fixedly connected to an extension rod 53, and the extension rod 53 is fixedly connected to one side of the top of the fixed plate 18, a tension spring 52 that is sleeved on the outer contour of the fixed shaft 51 is fixedly connected between the rack 5 and the extension rod 53, the bottom end of the rack 5 is fixedly connected to a compression spring 54, and the bottom end of the compression spring 54 is fixedly connected to a bending wheel 55 for performing bending operations under the temples.

[0035] After the installation work is completed, the processing work is started synchronously. Along with the rotation of the drive shaft 13, the transmission wheel 42, the chain 41 and the transmission shaft 4 rotate synchronously. At this time, the rotation of the transmission shaft 4 is transmitted to the positioning shaft 45 and the friction wheel 46 via the transmission belt 44. Since the friction wheel 46 is always against the frame and the auxiliary temple to be bent, and the frame is restricted by the positioning mechanism and cannot move freely, and the small angle inward bending of the frame further increases the tightness between it and the auxiliary temple, it will not fall off under the friction rotation of the friction wheel 46. That is, at this time, the rotation of the friction wheel 46 will continuously rub the outer surface of the frame and the auxiliary temple to be bent and gradually accumulate heat, thereby locally increasing the temperature of the material to reduce its hardness and yield strength, making the material more susceptible to plastic deformation, which in turn helps to better adapt to deformation during the bending process and reduce the possibility of rebound; at the same time, during the heating process, the stress inside the material can be released to a certain extent, reducing residual stress and thus reducing the rebound phenomenon.

[0036] At the same time, the rotation of the transmission shaft 4 synchronously drives the half gear 43 to move. The movement of the half gear 43 realizes the intermittent descent of the rack 5 under the action of its intermittent meshing and transmission connection with the rack 5. When the half gear 43 meshes with the rack 5, the half gear 43 rotates to drive the rack 5 to descend. At this time, the rack 5 extends downward along the fixed axis 51 and pulls the tension spring 52. At the same time, the bending wheel 55 is against the outer surface of the frame and the auxiliary temple to be bent and squeezes the compression spring 54. With the further descent of the rack 5, the deformation degree of the tension spring 52 and the compression spring 54 gradually increases, which causes the pressure of the bending wheel 55 on the frame and the auxiliary temple to be bent to increase synchronously, thereby completing the lower bending operation of the frame and the auxiliary temple.

[0037] When the half gear 43 is not engaged with the rack 5, the rack 5 quickly shrinks upward along the fixed axis 51 under the restoring action of the tension spring 52 and the compression spring 54, and drives the bending wheel 55 to separate from the frame and the auxiliary temple, thereby achieving multiple bending to reduce stress concentration during each bending, thereby reducing the rebound phenomenon.

[0038] It should be noted that when the bending wheel 55 abuts and squeezes the frame and the auxiliary temple, since its abutting contact position deviates from the axial position of the friction wheel 46, that is, the direction of the material's supporting force on the bending wheel 55 is inclined upward, this supporting force can be further decomposed into two components, vertically upward and horizontally outward. The vertical upward force and the pressure of the bending wheel 55 offset each other, while the horizontal outward force will cause the bending wheel 55 to have a tendency to move outward; along with the gradual downward pressure of the rack 5, the horizontal outward force increases synchronously, and when it is greater than the torsion threshold of the compression spring 54, the bending wheel 55 deviates outward and This causes the compression spring 54 to twist. At this time, the contact position of the bending wheel 55 and the material changes synchronously and causes the bending wheel 55 to continue to extend, so that the material can fully fit the outer contour of the adjustment component under the bending action of the bending wheel 55, thereby effectively improving the bending quality of the equipment. At the same time, since the bending wheel 55 is made of rubber material, the friction between it and the material is relatively large. When the bending wheel 55 is offset, a small tensile force can be synchronously applied to the material. Then, by applying a moderate tensile force during the bending process, the accumulation of internal stress in the material is reduced when it is bent to maintain its shape.

[0039] On the other hand, along with the downward pressure of the bending wheel 55, the downward bending angle of the frame and the auxiliary temples gradually increases. At this time, the position correspondence between the auxiliary temples and the material guide groove 31 is gradually released, and along with the reciprocating movement of the traveling plate 3, it continuously squeezes the auxiliary temples and further increases the downward and inner bending angles of the frame and the auxiliary temples, thereby completing the auxiliary function of the traveling mechanism for the temple bending operation.

[0040] Embodiment 4: See also Figure 8 This embodiment further illustrates the following on the basis of the third embodiment: The adjusting assembly includes an adjusting shaft 6 that passes through and is rotatably connected to the fixed plate 18 near the transmission shaft 4, a guide wheel 61 passes through and is fixedly connected to the outer contour of the adjusting shaft 6, a fixing sleeve 62 fixedly connected to the fixed plate 18 is sleeved on the outer contour of the adjusting shaft 6 located between the fixed plate 18 and the guide wheel 61, a plurality of fixedly connected limiting plates 63 are distributed in an annular manner at equal intervals on the outer contour of the fixing sleeve 62, a telescopic plate 64 is slidably connected inside the limiting plate 63, an end of the telescopic plate 64 pointing to the fixed sleeve 62 is fixedly connected to a guide pin 65 with one end extending toward the guide wheel 61, and an end of the telescopic plate 64 away from the fixed sleeve 62 is fixedly connected to an arc plate 66.

[0041] The surface of the guide wheel 61 is provided with guide grooves corresponding in number to the telescopic plates 64 and the guide pins 65 are drivingly connected inside the guide grooves. The number of the arc plates 66 corresponds to the telescopic plates 64 and all the arc plates 66 are assembled into a wheel-shaped structure.

[0042] The outer contours of the limiting wheel 23, the inner folding wheel 24, the friction wheel 46, the bending wheel 55 and the arc plate 66 are all made of rubber material.

[0043] When it is necessary to adjust the maximum bending angle of the temple, the adjustment shaft 6 is rotated forward and backward according to the adjustment needs. Taking the adjustment process of reducing the maximum bending angle as an example, the adjustment shaft 6 drives the guide wheel 61 to rotate synchronously, and the guide pin 65 and the telescopic plate 64 tend to rotate synchronously. However, since the telescopic plate 64 is located inside the limiting plate 63, and the limiting plate 63 is fixedly connected by the fixing sleeve 62 and the fixing plate 18, that is, the fixing sleeve 62 and the limiting plate 63 cannot rotate, which causes the telescopic plate 64 and the guide pin 65 to also be unable to rotate. At this time, the rotation of the guide wheel 61 is further coordinated with the guide groove thereof, so that the guide pin 65 and the telescopic plate 64 begin to extend outward and drive the arc plate 66 to move together. The outward extension of the arc plate 66 causes the wheel-like structure assembled together to begin to expand.

[0044] Since the arc plate 66 is pressed against the lower surface of the frame and the auxiliary temples to be bent, the maximum bending degree of the material is equivalent to the arc angle of the material on the outer surface of the wheel-shaped structure of the arc plate 66, and this part of the material length remains unchanged when the bending position of the temple is not adjusted. When the size of the wheel-shaped structure of the arc plate 66 increases, the arc angle of the material on its surface length decreases synchronously, thereby achieving the function of reducing the maximum bending angle of the temple.

[0045] It should be noted that the outer contours of the limiting wheel 23, the inner folding wheel 24, the friction wheel 46, the bending wheel 55 and the arc plate 66 that are in direct contact with the glasses frame and the auxiliary temples are all made of rubber material, thereby effectively increasing the friction resistance between the equipment and the glasses to improve the installation quality and bending quality. At the same time, the rubber material can effectively accumulate heat and thereby improve the working efficiency of the heating mechanism.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temple bending device for a metal eyeglass frame, comprising a fixing seat (1), mounting components arranged on both sides of the fixing seat (1), a processing component arranged at the top of the middle of the fixing seat (1), and an adjustment component arranged below the processing component, characterized in that: One side of the fixed seat (1) is fixedly connected to a fixing frame 1 (11), and the other side of the fixed seat (1) is fixedly connected to a fixing frame 2 (12). The top ends of the fixing frames 1 (11) and 2 (12) are both provided with guide rails. A driving shaft (13) driven by a motor is penetrated through the center of the fixed seat (1) and is rotatably connected thereto. A handle (14) is penetrated through one end of the driving shaft (13) and is fixedly connected thereto. A connecting rod 1 (15) is penetrated through the top end of the handle (14) and is rotatably connected thereto via a pin. The other end of the connecting rod 1 (15) is respectively connected to a connecting rod 2 (16) and a connecting rod 3 (17) via a pin. A fixing plate (18) is fixedly connected to the side of the fixed seat (1) away from the handle (14), and the fixing plate (18) is penetrated through and rotatably connected to the end of the driving shaft (13) away from the handle (14). The mounting assembly comprises a positioning mechanism for inwardly bending the temples and adjusting the bending position of the temples, and a travel mechanism for assisting the automatic installation of the temples; the positioning mechanism is transmission-connected to the second connecting rod (16) via a pin shaft, and the travel mechanism is transmission-connected to the third connecting rod (17) via a pin shaft.

2. The metal eyeglass frame temple bending device according to claim 1, characterized in that: The processing assembly comprises a heating mechanism for locally rubbing the bent portion of the temple and a bending mechanism for bending the temple downwards, the heating mechanism penetrating through and being rotatably connected to the fixing plate (18), and the bending mechanism being fixedly connected to the fixing plate (18) and transmission-connected to the heating mechanism.

3. The metal eyeglass frame temple bending device according to claim 2, characterized in that: The positioning mechanism comprises a slider (21) slidably connected to a guide rail of a fixing frame (11); both sides of the slider (21) are fixedly connected to positioning plates (2); a limiting groove for placing a frame of the glasses is provided on the positioning plate (2); a buckle (22) penetrating the fixing frame (11) is fixedly connected to the top of the slider (21); a threaded shaft (25) is penetrated and screwed to the slider (21); the threaded shaft (25) is located in the guide rail of the driving shaft (13) and one end of the threaded shaft (25) penetrates and is rotatably connected to the driving shaft (13); the top of the positioning plate (2) is fixedly connected to a buckle (22) penetrating the fixing frame (11); The end of the positioning plate (2) is fixedly connected to a limiting wheel (23), and the top end of the positioning plate (2) extends outward near the limiting wheel (23) and is fixedly connected to an inner folding wheel (24) for folding the temple inward; the travel mechanism comprises a second slider (32) slidably connected to the guide rail of the fixing frame (11), and both ends of the second slider (32) are fixedly connected to a travel plate (3), and a guide groove (31) at the same height as the buckle (22) is provided at a position near the top end of the travel plate (3), and one side of the travel plate (3) is penetrated and fixedly connected to a limiting seat (33), and the limiting seat The top end of the return spring (33) is fixedly connected to a return spring (34) disposed inside the traveling plate (3), and the top end of the return spring (34) is fixedly connected to a material guide inclined plate (35) located inside the traveling plate (3) and blocking the material guide groove (31); the heating mechanism comprises a transmission shaft (4) penetrating and rotatably connected to a position near the top end of the fixed plate (18), one end of the transmission shaft (4) pointing to the fixed plate (18) is connected to a chain (41) through a gear transmission, and the other end of the chain (41) is transmission-connected to a transmission wheel (42), and the transmission wheel (42) The drive shaft (13) is penetrated and fixedly connected to the outer contour of the drive shaft (13); half gears (43) are penetrated and fixedly connected to both sides of the outer contour of the transmission shaft (4) near the middle section; a transmission belt (44) is transmission-connected to the outer contour of the middle section of the transmission shaft (4); the other end of the transmission belt (44) is transmission-connected to a positioning shaft (45); the positioning shaft (45) penetrates and is rotationally connected to a position on the fixing plate (18) at the same height as the buckle (22); and friction wheels (46) are penetrated and fixedly connected to the outer contour of the positioning shaft (45) at positions corresponding to the half gears (43).

4. The metal eyeglass frame temple bending device according to claim 3, characterized in that: The bending mechanism comprises a rack (5) intermittently meshed and transmission-connected to the outer contour of the half gear (43); the top end of the rack (5) is penetrated by and slidably connected to a fixed shaft (51); the top end of the fixed shaft (51) is fixedly connected to an extension rod (53), and the extension rod (53) is fixedly connected to one side of the top end of a fixed plate (18); a tension spring (52) sleeved on the outer contour of the fixed shaft (51) is fixedly connected between the rack (5) and the extension rod (53); the bottom end of the rack (5) is fixedly connected to a compression spring (54), and the bottom end of the compression spring (54) is fixedly connected to a bending wheel (55) for performing a bending operation under the temple.

5. The metal eyeglass frame temple bending device according to claim 3, characterized in that: The adjustment assembly comprises an adjustment shaft (6) penetrating through and rotatably connected to a fixed plate (18) at a position close to the transmission shaft (4); a guide wheel (61) penetrating through and fixedly connected to the outer contour of the adjustment shaft (6); a fixing sleeve (62) fixedly connected to the fixed plate (18) is sleeved on the outer contour of the adjustment shaft (6) located between the fixed plate (18) and the guide wheel (61); and a plurality of fixedly connected limiting plates (63) are annularly distributed at equal intervals on the outer contour of the fixing sleeve (62).

6. The metal eyeglass frame temple bending device according to claim 5, characterized in that: A telescopic plate (64) is slidably connected inside the limit plate (63); one end of the telescopic plate (64) pointing toward the fixed sleeve (62) is fixedly connected to a guide pin (65) having one end extending toward the guide wheel (61); and one end of the telescopic plate (64) away from the fixed sleeve (62) is fixedly connected to an arc-shaped plate (66).

7. The metal eyeglass frame temple bending device according to claim 6, characterized in that: The surface of the guide wheel (61) is provided with guide grooves whose number corresponds to the telescopic plates (64), and the guide pins (65) are drivingly connected to the inside of the guide grooves. The number of the arc plates (66) is corresponding to the telescopic plates (64), and all the arc plates (66) are assembled together to form a wheel-shaped structure.

8. The metal eyeglass frame temple bending device according to claim 3, characterized in that: The outer contours of the limiting wheel (23), the inner folding wheel (24), the friction wheel (46), the bending wheel (55) and the arc-shaped plate (66) are all made of rubber material.

Images