Conveying mechanism for butterfly cover laser marking machine

Abstract

The utility model discloses a conveying mechanism for a butterfly cover laser marking machine, which comprises a mounting frame, two base plates are symmetrically arranged on the mounting frame, a vertical frame is arranged on the base plates, a conveying plate is arranged at the top of the vertical frame, a motor is arranged at the top of the conveying plate through a fixing frame, and the motor is arranged on the mounting frame. A motor is arranged on the conveying plate, an output shaft of the motor extends into the conveying plate, conveying wheels are rotationally installed at the two ends of the conveying plate and are horizontally arranged, a shaft rod of one conveying wheel is connected with the output shaft of the motor, and conveying belts are arranged on the surfaces of the two conveying wheels. The two oppositely-arranged conveying belt mechanisms are adopted, the butterfly cover is conveyed in a clamped state in the state that the butterfly cover is perpendicular to the horizontal plane and unfolded, compared with a rotary disc conveying mode and a clamping conveying mode, cover conveying is more stable, the conveying speed is higher, laser marking on the front face and the back face of the butterfly cover is more accurate, and the production efficiency is improved. Therefore, the code assigning capacity of the cover and the quality of the two-dimensional code are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bottle cap laser marking, especially relates to a conveying mechanism for butterfly cap laser marking machine. BACKGROUND

[0002] In the field of food, daily chemical and other packaging, butterfly cap is widely used due to its unique opening and closing structure. With the improvement of product traceability demand, it is often necessary to code synchronously on the inner and outer surfaces of the cap body and implement online detection. However, the asymmetric thin-walled structure (usually composed of two hinged cap bodies) presented after the unfolding of the butterfly cap puts strict requirements on the stability of conveying: it is necessary to ensure the accurate maintenance of the vertical unfolding posture of the cap body, and to avoid the positional deviation in high-speed conveying. The current mainstream equipment generally adopts the rotary table conveying mode, which has the following technical bottlenecks:

[0003] 1. The assembly gap caused by the size tolerance between the rotary table fixture and the butterfly cap makes the cap body produce radial jumping and axial shifting in high-speed rotation, which directly causes the deviation of laser spot. This leads to uneven thickness of two-dimensional code lines, blurred edges, and high visual detection error rate of about 15%;

[0004] 2. The diameter of the rotary table is limited by the space of the equipment (the conventional diameter is less than or equal to 1.2m), the number of single-turn workstations is limited, and the theoretical maximum conveying speed is difficult to break through 200pcs / min. And the speed increase will aggravate the centrifugal force, causing the risk of separation of the cap body and the fixture;

[0005] 3. The fixed design of the traditional rotary table fixture cannot adapt to butterfly caps of different specifications (such as series products with a diameter of 20-50mm and a height of 10-30mm), and the replacement of the fixture takes a long time, which seriously affects the flexible production demand of the production line.

[0006] The above problems seriously restrict the yield and production efficiency of butterfly cap coding process, therefore, a new type of conveying scheme that can balance high precision, high speed and strong adaptability is urgently needed. SUMMARY

[0007] The utility model aims at the problems existing in the prior art, and provides a conveying mechanism for butterfly cap laser marking machine, which solves the problem that the traditional rotary table type butterfly cap conveying equipment is prone to deviation and separation during conveying, resulting in inaccurate laser marking and low yield.

[0008] To achieve the above object, the utility model adopts the following technical scheme: a conveying mechanism for butterfly cover laser marking machine, including mounting frame, two base plates are symmetrically arranged on the mounting frame, a stand is arranged on the base plate, a conveying plate is arranged on the top of the stand, a motor is arranged on the top of the conveying plate through a fixing frame, the output shaft of the motor extends to the inside of the conveying plate, conveying wheels are rotatably installed at both ends of the conveying plate, one of the conveying wheels is connected with the output shaft of the motor, conveying belts are arranged on the surfaces of the two conveying wheels, a first limiting plate group is arranged at one end of the conveying plate, and a second limiting plate is arranged on the opposite side of the two stands.

[0009] In the above technical scheme, two conveying belt mechanisms are arranged oppositely, so that the butterfly cover is conveyed in a state of being clamped and being perpendicular to the horizontal plane. Compared with the rotating disc conveying mode and the clamping conveying mode, the cover conveying is more stable, the conveying speed is faster, the laser marking on the front and back surfaces of the butterfly cover is more accurate, the coding capacity of the cover is improved, and the quality of the two-dimensional code itself is improved. The first limiting plate group and the second limiting plate can accurately limit the position of the butterfly cover, prevent the butterfly cover from shaking or mispositioning during conveying, and further improve the marking accuracy.

[0010] Optionally, the conveying plate is provided with a horizontal slot at both ends, the upper and lower walls of the horizontal slot are provided with through holes, the conveying wheels are arranged in the horizontal slots, and the diameters of the conveying wheels are greater than the width of the conveying plate.

[0011] In the above technical scheme, the horizontal slots at both ends of the conveying plate provide stable mounting positions for the conveying wheels, so that the conveying wheels will not deviate or shake during operation. The diameters of the conveying wheels are greater than the width of the conveying plate, so that the butterfly cover is effectively prevented from falling off the edge of the conveying plate during conveying, and the conveying safety is improved.

[0012] Optionally, a spacing adjustment assembly is arranged between the mounting frame and the two stands, the spacing adjustment assembly comprises a plurality of ground rails which are arranged at intervals on the mounting frame, the base plate is provided with a sleeve rail which is sleeved on the ground rail, the base plate is threadedly connected with an adjusting screw through a connecting block, the adjusting screw is rotatably connected with a fixed seat which is fixedly connected with the mounting frame, the adjusting screw is arranged in the same direction as the length direction of the ground rail, and an adjusting hand wheel is arranged at the end of the adjusting screw which is away from the stand.

[0013] In the above technical scheme, the spacing adjustment assembly is designed, and the ground rail, the sleeve rail, the adjusting screw and the adjusting hand wheel are used to facilitate the user to quickly adjust the spacing between the two stands according to the size of the butterfly cover. The threaded connection of the adjusting screw and the fixed seat and the adjusting hand wheel are used to realize accurate spacing adjustment, so that the conveying mechanism can adapt to butterfly covers of different specifications.

[0014] Optionally, the ground rail surface is provided with a scale ruler, and the side surface of the sleeve rail is provided with a positioning opening capable of leaking out the ground rail inside, so that the user can intuitively read and position when adjusting the distance between the stands, and the accuracy of adjustment is improved.

[0015] Optionally, the first limiting plate group comprises a bottle cap back plate and a bottle cap face plate arranged at the bottom of one end of the two conveying plates respectively, the side of the bottle cap back plate facing the bottle cap face plate is provided with a positioning horizontal plate, and the two side walls opposite to each other of the bottle cap back plate and the bottle cap face plate are flush with the two sides opposite to each other of the two conveying belts respectively, the bottle cap back plate and the bottle cap face plate form front and rear limiting, interference between the folded cover body and the limiting plate is avoided, and stable conveying of the butterfly cover is ensured.

[0016] Preferably, the side of the bottle cap back plate facing the bottle cap face plate is provided with a positioning horizontal plate, the length of the positioning horizontal plate is not less than one half of the length of the bottle cap back plate, and the side of the positioning horizontal plate away from the bottle cap back plate is provided with an inclined chamfer, the positioning horizontal plate provides vertical direction support for the butterfly cover, and shaking or toppling of the butterfly cover in conveying is prevented; meanwhile, the setting of the inclined chamfer makes the side of the positioning horizontal plate thinner, so that the positioning horizontal plate is more fitted to the hinge of the butterfly cover.

[0017] Optionally, the second limiting plate is an L-shaped bending structure, the vertical section of the L-shaped bending structure is connected with the stand through a screw, and the side of the horizontal section away from the vertical section is provided with a guide inclined surface, the height of the horizontal section is flat with the lower half of the butterfly cover and is in contact with the lower half of the butterfly cover.

[0018] In the above technical solution, the guide inclined surface of the L-shaped second limiting plate can guide the butterfly cover to enter the conveying path stably, and reduce the risk of material jamming; the design that the height of the horizontal section is in contact with the lower half of the butterfly cover provides stable support, prevents the cover from toppling or sliding, and enhances the continuity and reliability of the conveying process.

[0019] Optionally, the surface of the conveying belt is provided with anti-skid texture, which effectively increases the friction force, prevents the butterfly cover from sliding in the conveying process, improves the stability of conveying, and the width of the conveying belt is matched with the diameter of the butterfly cover, so that the butterfly cover will not be deviated or shaken in the conveying process, and the conveying precision is further improved.

[0020] Compared with the prior art, the beneficial effects of the utility model are: 1, adopt two relative arrangement's conveying belt mechanism, make butterfly cover in the clamped state with butterfly cover vertical to the attitude of the horizontal plane and spread, contrast the mode of disc conveying, the mode of clamping conveying, the cover conveying is more stable, the conveying speed is faster, simultaneously, the laser marking of the two sides of butterfly cover is more accurate, thereby improve the quality of the cover's code assignment capacity and two-dimensional code, the first limit plate group and the second limit plate can accurately limit the position of butterfly cover, prevent its in the conveying process sway or misplacement, further improve the marking precision;2, the design of interval adjusting assembly, through ground rail, cover rail, adjusting screw and adjusting hand wheel, the user can conveniently according to the size of butterfly cover fast adjustment the interval between two stands;the threaded connection of adjusting screw and fixed base, in combination with adjusting hand wheel, realize accurate interval adjustment, ensure that the conveying mechanism can adapt to different specifications of butterfly cover;3, bottle cap backboard and bottle cap panel form front and back limit, positioning horizontal plate provides vertical direction support for butterfly cover, prevent butterfly cover from swaying or toppling in conveying;the height of panel matches the size of butterfly cover after unfolding, avoid the interference of folded cover body and limit plate, guarantee the stable conveying of butterfly cover;4, the guide slope of L-shaped second limit plate can guide butterfly cover to enter the conveying path stably, reduce the risk of material blockage;the design of the height of horizontal section and the lower half end contact of butterfly cover provides stable support, prevents the cover from toppling or sliding, enhances the coherence and reliability of the conveying process. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a longitudinal three-dimensional perspective view of the conveying mechanism of the butterfly cover laser marking machine of the utility model embodiment;

[0022] Figure 2 It is a longitudinal three-dimensional perspective view of the conveying mechanism of the butterfly cover laser marking machine of the utility model embodiment;

[0023] Figure 3 It is a front view of the conveying mechanism of the butterfly cover laser marking machine of the utility model embodiment;

[0024] Figure 4 It is a top view schematic diagram of the conveying plate, motor, conveying wheel and conveying belt of the utility model embodiment;

[0025] Figure 5 It is a three-dimensional perspective view of the first limit plate group of the utility model embodiment;

[0026] Figure 6 It is an assembly effect schematic diagram of the conveying mechanism and the laser marking mechanism of the utility model embodiment.

[0027] In the figure: 1, base; 2, mounting frame; 3, ground rail; 4, base plate; 41, sleeve rail; 5, adjusting screw; 6, stand; 7, conveying plate; 8, motor; 9, conveying wheel; 10, conveying belt; 11, first limiting plate group; 111, bottle cap back plate; 112, bottle cap face plate; 113, positioning cross plate; 12, second limiting plate. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0030] As shown in Figure 1 The specific scheme of the embodiment is as follows: a conveying mechanism for a butterfly cover laser marking machine, comprising a mounting frame 2, two base plates 4 are symmetrically arranged on the mounting frame 2, a stand 6 is arranged on the base plate 4, a conveying plate 7 is arranged on the top of the stand 6, a motor 8 is arranged on the top of the conveying plate 7 through a fixing frame, the output shaft of the motor 8 extends into the interior of the conveying plate 7, conveying wheels 9 are rotatably installed at both ends of the conveying plate 7, the conveying wheels 9 are arranged in a horizontal state, the shaft of one of the conveying wheels 9 is connected with the output shaft of the motor 8, conveying belts 10 are arranged on the surfaces of the two conveying wheels 9, a first limiting plate group 11 is arranged at one end of the conveying plate 7, and second limiting plates 12 are arranged on the opposite sides of the two stands 6.

[0031] In the above technical solution, two conveying belt mechanisms are arranged oppositely, so that the butterfly cover is conveyed in a state of being clamped and perpendicular to the horizontal plane and being unfolded. Compared with the disc conveying mode and the clamping conveying mode, the cover conveying is more stable and faster, and the laser marking on the front and back surfaces of the butterfly cover is more accurate, thereby improving the coding capacity of the cover and the quality of the two-dimensional code itself. The first limiting plate group 11 and the second limiting plate 12 can accurately limit the position of the butterfly cover, prevent it from shaking or mispositioning during conveying, and further improve the marking accuracy.

[0032] The conveying plate 7 is provided with a horizontal slot at both ends, the upper and lower walls of the horizontal slot are provided with through holes, and the conveying wheel 9 is arranged in the horizontal slot, and the diameter of the conveying wheel 9 is greater than the width of the conveying plate 7.

[0033] In the technical scheme, the horizontal slots at both ends of the conveying plate 7 provide stable mounting positions for the conveying wheel 9, so that the conveying wheel 9 will not deviate or shake during operation; the diameter of the conveying wheel 9 is greater than the width of the conveying plate 7, which effectively prevents the butterfly cover from falling off the edge of the conveying plate 7 during conveying, thereby improving the safety of conveying.

[0034] As shown in Figures 1-3 The mounting frame 2 and the two stands 6 are provided with a spacing adjustment assembly, the spacing adjustment assembly comprises a plurality of ground rails 3 arranged on the mounting frame 2, the bottom of the base plate 4 is provided with a sleeve rail 41 sleeved on the ground rail 3, the bottom of the base plate 4 is threadedly connected with an adjusting screw 5 through a connecting block, the surface of the adjusting screw 5 is rotatably connected with a fixed seat fixedly connected with the mounting frame 2, the adjusting screw 5 is arranged in the same direction as the length direction of the ground rail 3, and one end of the adjusting screw 5 away from the stand 6 is provided with an adjusting hand wheel. When adjusting the spacing of the two stands 6, the stand 6 can be slid transversely on the ground rail 3 by rotating the adjusting hand wheel, so that the spacing of the two stands 6 can be adjusted.

[0035] In this embodiment, the spacing adjustment assembly is designed by the ground rail 3, the sleeve rail 41, the adjusting screw 5 and the adjusting hand wheel, so that the user can quickly adjust the spacing between the two stands 6 according to the size of the butterfly cover; the screw connection between the adjusting screw 5 and the fixed seat, combined with the adjusting hand wheel, realizes accurate spacing adjustment, and ensures that the conveying mechanism can adapt to butterfly covers of different specifications.

[0036] The surface of the ground rail 3 is provided with a scale, and the side surface of the sleeve rail 41 is provided with a positioning opening through which the internal ground rail 3 can be seen, so that the user can intuitively read and position when adjusting the spacing of the stand 6, thereby improving the accuracy of adjustment.

[0037] As shown in Figure 1 , Figure 5 The first limiting plate set 11 comprises a bottle cap back plate 111 and a bottle cap panel 112 arranged at the bottom of one end of the two conveying plates 7 respectively. In this embodiment, the height of the front end of the bottle cap panel 112 is greater than the height of the unfolded butterfly cover, and the two opposite side walls of the bottle cap back plate 111 and the bottle cap panel 112 are flush with the two opposite sides of the two conveying belts 10 respectively.

[0038] In this embodiment, the bottle cap back plate 111 and the bottle cap panel 112 form front and rear limiting, and after the butterfly cover enters the bottle cap back plate 111 and faces the bottle cap panel 112, the butterfly cover is prevented from shaking or toppling during conveying; the panel height matches the size of the unfolded butterfly cover, avoiding interference between the folded cover body and the limiting plate, and ensuring stable conveying of the butterfly cover.

[0039] It is to be noted that the side of the bottle cap back plate 111 facing the bottle cap panel 112 is provided with a positioning horizontal plate 113, the length of the positioning horizontal plate 113 is not less than one half of the length of the bottle cap back plate 111, the side of the positioning horizontal plate 113 away from the bottle cap back plate 112 is provided with an inclined chamfer, the positioning horizontal plate 113 provides vertical direction support for the butterfly cap, preventing the butterfly cap from shaking or toppling during transportation; at the same time, the setting of the inclined chamfer makes the side of the positioning horizontal plate 113 thinner, so that it is more fitted to the hinge of the butterfly cap. The side away from the bottle cap panel 112 of the bottle cap back plate 111 is provided with an ear plate, and the ear plate is installed at the bottom of the conveying plate 7 through a bolt.

[0040] As shown in Figure 3 , the second limiting plate 12 is an L-shaped bending structure, the vertical section of which is connected with the stand 6 through a screw, and the horizontal section is provided with a guide inclined surface on the side away from the vertical section, the height of the horizontal section is flat with the lower half of the butterfly cap and is in contact with the lower half of the butterfly cap.

[0041] In this embodiment, the guide inclined surface of the L-shaped second limiting plate 12 can guide the butterfly cap to enter the conveying path smoothly, reducing the risk of material jamming; the design that the height of the horizontal section is in contact with the lower half of the butterfly cap provides stable support, preventing the cap from toppling or sliding, and enhancing the continuity and reliability of the conveying process.

[0042] As shown in Figures 3-4 , the surface of the conveying belt 10 is provided with anti-skid texture, effectively increasing the friction force, preventing the butterfly cap from sliding during the conveying process, and improving the stability of the conveying process, the width of the conveying belt 10 is matched with the diameter of the butterfly cap, ensuring that the butterfly cap will not deviate or shake during the conveying process, further improving the conveying precision.

[0043] As shown in Figure 6 , the entire conveying mechanism is installed on the machine base 1, and laser markers are arranged on the machine base 1 and located on both sides of the conveying mechanism, the laser markers are focused on the front and back surfaces of the lower half of the butterfly cap, and a vision system module is matched therewith, the vision system module is arranged on the stand 6 through a mounting plate.

[0044] The working principle of the above embodiment is that after the motor 8 is started, one of the conveying wheels 9 is driven to rotate through the output shaft, and the conveying belt 10 is driven to run stably. The butterfly cover is placed on the conveying belt 10 in a posture perpendicular to the horizontal plane and unfolded, and is clamped and conveyed by two oppositely arranged conveying belt mechanisms. The guide slope of the second limiting plate 12 guides the butterfly cover to enter the conveying path stably and prevents material from being stuck; the horizontal section contacts the lower half of the butterfly cover to provide stable support and prevent the butterfly cover from falling or sliding. The back plate 111 and the face plate 112 of the first limiting plate group 11 form front and rear limiting, the positioning cross plate 113 provides vertical support for the middle hinge of the butterfly cover, and ensures that the position of the butterfly cover is accurate and stable during conveying. According to the size of the butterfly cover, the sleeve rail 41 is slid transversely along the ground rail 3 by rotating the adjusting hand wheel, the distance between the two stands 6 is adjusted, and it is ensured that the conveying mechanism can adapt to butterfly covers of different specifications. During the conveying of the butterfly cover, the laser markers on both sides focus on the front and back of the butterfly cover to complete laser coding. At the same time, the vision system module is arranged on the stand 6 through the mounting plate, and the coding quality is detected in real time to ensure the clarity and reading accuracy of the two-dimensional code. The anti-skid texture on the surface of the conveying belt 10 increases the friction, prevents the butterfly cover from sliding during conveying, and ensures the stability of conveying and the accuracy of marking.

[0045] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A conveying mechanism for a butterfly cap laser marking machine, characterized in that, The device includes a mounting frame with two symmetrically arranged base plates. Each base plate has a support frame, and the top of the support frame has a conveyor plate. A motor is mounted on the top of the conveyor plate via a fixing frame. The output shaft of the motor extends into the interior of the conveyor plate. Conveyor wheels are rotatably mounted on both ends of the conveyor plate. The conveyor wheels are laid flat. The axle of one of the conveyor wheels is connected to the output shaft of the motor. Conveyor belts are provided on the surfaces of the two conveyor wheels. A first limiting plate group is provided at one end of the conveyor plate, and a second limiting plate is provided on each of the two support frames on opposite sides.

2. The conveying mechanism for a butterfly cap laser marking machine according to claim 1, characterized in that: The conveyor plate has flat grooves at both ends, and through holes are provided on the upper and lower walls of the flat grooves. The conveyor wheel is set in the flat groove, and the diameter of the conveyor wheel is greater than the width of the conveyor plate.

3. The conveying mechanism for a butterfly cap laser marking machine according to claim 1, characterized in that: A spacing adjustment assembly is provided between the mounting frame and the two uprights. The spacing adjustment assembly includes multiple ground rails spaced apart on the mounting frame. The bottom of the base plate is provided with a sleeve rail fitted on the ground rail. An adjusting screw is threadedly installed on the bottom of the base plate through a connecting block. A fixing seat fixedly connected to the mounting frame is rotatably installed on the surface of the adjusting screw. The setting direction of the adjusting screw is consistent with the length direction of the ground rail. An adjusting handwheel is provided at the end of the adjusting screw away from the upright.

4. The conveying mechanism according to claim 3, characterized in that: The surface of the ground rail is provided with a scale, and the side of the sleeve rail has a positioning opening that exposes the internal ground rail.

5. The conveying mechanism for a butterfly cap laser marking machine according to claim 1, characterized in that: The first limiting plate assembly includes a bottle cap back plate and a bottle cap front plate respectively disposed at the bottom of one end of the two conveyor plates. The two opposite side walls of the bottle cap back plate and the bottle cap front plate are respectively flush with the opposite sides of the two conveyor belts.

6. The conveying mechanism for a butterfly cap laser marking machine according to claim 5, characterized in that: A positioning plate is provided on the side of the bottle cap back plate facing the bottle cap front plate. The length of the positioning plate is not less than half the length of the bottle cap back plate. The side of the positioning plate away from the bottle cap back plate is provided with a chamfer.

7. The conveying mechanism for a butterfly cap laser marking machine according to claim 1, characterized in that: The second limiting plate is an L-shaped bending structure. Its vertical section is connected to the stand by screws, and the horizontal section has a guide slope on the side away from the vertical section. The height of the horizontal section is level with the lower half of the butterfly cover and contacts the lower half of the butterfly cover.

8. The conveying mechanism for a butterfly cap laser marking machine according to claim 1, characterized in that: The conveyor belt has an anti-slip texture on its surface, and the width of the conveyor belt matches the diameter of the butterfly cover.

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