CN221231475U - Driving mechanism in post forming device of rotary cover - Google Patents

Abstract

The driving mechanism in the post forming device of the rotary cover comprises a main motor and a main shaft linked with the main motor, wherein a plurality of main cams which are corresponding to the number of processing holes are arranged on the main shaft, ejector rod seats which are positioned below the corresponding processing holes and can shuttle in the corresponding processing holes are supported on each main cam, the top of each ejector rod seat is not higher than the upper surface of a table board in an unoperated state, the lower end of each ejector rod seat is fixed on a corresponding main cylinder, a piston rod of each main cylinder is supported on the corresponding main cam, a sealing cavity which at least can seal and enclose part of each main cylinder and is preset with certain pressure is arranged in a frame, and air holes which are communicated with the sealing cavity and the inner cavity of the main cylinder are formed in the wall surface of the cylinder body of each main cylinder, so that the piston rod of each main cylinder always has a trend of being in contact with the peripheral surface of the corresponding main cylinder. By adopting the structure, the accuracy and the reliability of the lifting operation beat of each ejector rod seat are improved, and the lifting operation beat can be effectively kept in the state even if the lifting operation beat is used for a long time.

Description

Driving mechanism in post forming device of rotary cover

Technical Field

The utility model relates to the technical field of production equipment of a rotary cover, in particular to a post forming device of the rotary cover, and more particularly relates to a driving mechanism in the post forming device of the rotary cover.

Background

The unscrewed cap is usually a cap body made of tinplate, and is often arranged on a glass bottle opening because of a good sealing effect after the unscrewed cap is matched with the glass bottle. The traditional processing mode of the unscrewing cover is to cut and discharge firstly, then blanking and stamping the blank into an unscrewing cover blank, then curling the peripheral edge of the unscrewing cover blank, then rolling claws to form a three-claw, four-claw or six-claw unscrewing cover semi-finished product, then injecting sealant into the unscrewing cover semi-finished product, and curing the sealant at high temperature to form the unscrewing cover finished product. At present, in order to improve the processing efficiency, a post processing device for blanking and stamping a unscrewed cover blank is integrated in the same equipment, for example, an intelligent linkage cover forming machine disclosed in the document of China publication No. CN216989618U integrates mechanical devices such as hemming and the like, and therefore, a driving mechanism is configured, and the driving mechanism comprises a power motor, a driving rotating shaft connected with the output end of the power motor, a plurality of tray cams arranged on the driving rotating shaft and respectively corresponding to corresponding stations, and a push rod seat supported on the corresponding tray cams, and the power motor drives the feeding mechanism to act through a steering box. In order to enable each ejector rod seat to reset rapidly, the device is further provided with a plurality of linear springs, the upper ends of the linear springs are fixed on the side convex rings corresponding to the bottoms of the ejector rod seats, and the lower ends of the linear springs are fixed on the spring positioning seats of the lower seat body. Because the same power motor is adopted, a plurality of tray cams can be driven to rotate, corresponding ejector rod seats are driven to ascend according to set beats, and each ejector rod seat and corresponding tooling on the upper part are matched for processing to finish processing operation on corresponding stations; the holding claw in the feeding mechanism can be driven to feed according to the requirement, so that the feeding and lifting operation beats on the corresponding stations are accurate and reliable, the quick production of the rotary cover is ensured, and the production efficiency of the rotary cover is improved.

However, due to the fact that the linear springs are arranged between the ejector rod seats and the lower seat body, the spring coefficients of the linear springs cannot be guaranteed to be consistent, and the fatigue degrees of the linear springs are different along with the long service time, and accordingly the consistency of the motion beats of the equipment can be affected to a certain extent by the additionally arranged linear springs.

Therefore, further improvements are still needed.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a driving mechanism in a post-forming device of a rotary cover, which can better ensure the consistency of action beats.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a actuating mechanism in post forming device of spin cover, installs the frame lower part in post forming device, and the frame has the mesa of establishing a plurality of processing holes, actuating mechanism is including main motor and the main shaft that links with main motor, installs a plurality of main cams corresponding with processing hole quantity on this main shaft, supports on each main cam and lies in the ejector pin seat that corresponds processing hole below and can shuttle in corresponding processing hole, and under unoperated state, the top of each ejector pin seat is not higher than the upper surface of mesa, its characterized in that: the lower end of each ejector rod seat is fixed on a piston rod of a corresponding main cylinder, the piston rod of each main cylinder is supported on a corresponding main cam, a sealing cavity which at least can seal and enclose part of each main cylinder and is preset with certain pressure is arranged in the frame, and air holes which are communicated with the sealing cavity and the inner cavity of the main cylinder are formed in the wall surface of the cylinder body of each main cylinder, so that the piston rod of each main cylinder always has a trend of being in contact with the peripheral surface of the corresponding main cam.

In order to reduce the resistance of the kinematic pair in the jacking process, a first fixing seat is arranged at the lower end of a piston rod of each main cylinder, and a first rolling body attached to the peripheral surface of the corresponding main cam and second and third rolling bodies respectively positioned at two sides of the corresponding main cam are arranged on the first fixing seat and can roll on the end surfaces of the corresponding sides of the corresponding main cam.

In the above improvement, it is still further improved that main raceways for the second rolling element and the third rolling element to roll are respectively formed on two side end faces of each main cam, and the shape of each main raceway is consistent with the shape of the peripheral surface outline of the corresponding main cam. Therefore, the left and right limiting functions of the second and third rolling bodies are better, and the jacking operation can be smoothly performed.

In the above schemes, the device also comprises a glue injection cam arranged on the main shaft, a glue injection cylinder and a vertical shaft, wherein the lower end of the vertical shaft is supported on the glue injection cam through a piston rod of the glue injection cylinder, the vertical shaft is positioned below a glue injection hole on the table top, and a tray which can shuttle in the glue injection hole and is not higher than the upper surface of the table top in an unoperated state is arranged at the top of the vertical shaft; the glue injection cylinder is at least partially positioned in the sealing cavity, and an air passage communicated with the sealing cavity and the inner cavity of the glue injection cylinder is formed in the wall surface of the cylinder body of the glue injection cylinder, so that a piston rod of the glue injection cylinder always has a trend of being in contact with the peripheral surface of the glue injection cam. Therefore, the driving mechanism can be used as a driving mechanism of the glue injection station at the same time, and the accuracy and reliability of the operation beats of glue injection operation, other curling edges and the like can be ensured.

In order to ensure the uniformity of glue injection, the vertical shaft can be rotated while moving up and down, therefore, the vertical shaft is designed into a spline shaft matched with a spline housing, the lower part of the vertical shaft is supported on a piston rod of the glue injection cylinder through a lower bearing, the spline housing is supported on a bearing seat through an upper bearing, a driving wheel fixed with the spline housing is sleeved in the middle of the vertical shaft, and a first motor for driving the driving wheel to rotate through a driving structure is mounted on the frame.

Similarly, in order to reduce the movement resistance, a second fixing seat is mounted at the lower end of a piston rod of the glue injection cylinder, a fourth rolling body attached to the peripheral surface of the glue injection cam and fifth and sixth rolling bodies positioned on two sides of the glue injection cam are mounted on the second fixing seat, glue injection rolling ways for the fifth and sixth rolling bodies to roll are respectively formed on end surfaces on two sides of the glue injection cam, and the shape of each glue injection rolling way is consistent with the peripheral surface outline shape of the glue injection cam.

In the above schemes, it is still further improved that the ejector rod seat comprises a main tray, a hollow lower die and an ejector rod, wherein the lower die is fixed on a piston rod of the main cylinder, a positioning bar is also fixed at the top of a cylinder body of the main cylinder, a avoiding groove which is used for the positioning bar to radially pass through and move up and down relatively is arranged on the piston rod of the main cylinder, the ejector rod is vertically inserted in the lower die, the upper end of the ejector rod is fixed with the main tray, a compression spring acting on the ejector rod is also sleeved on the ejector rod, the compression spring can enable the ejector rod to always have a trend of moving downwards to prop against the positioning bar, and when the highest point of the main cam is gradually in a low state, the top surface of the main tray on the ejector rod is flush with the top of the lower die; when the highest point of the main cam is gradually in a high-position state, the top surface of the main tray is lower than the top of the lower die. The ejector rod and the main tray can move up and down relative to the lower die by utilizing the compression spring and the positioning strip, so that the top surface of the main tray and the top of the lower die are flush or have height difference, and the movement and the processing positioning of the blank of the spinning cover to be processed under different working conditions are met. Compared with the prior art, the ejector rod seats are respectively supported on the respective main cams through the respective main cylinders, and meanwhile, the inner cavities of the respective main cylinders are communicated with the common sealing cavity, so that the air pressure acting on the pistons of the main cylinders is the same, the piston rods of the main cylinders can be always attached to the peripheral surfaces of the corresponding main cams in the working process of the main cylinders, the accuracy and the reliability of the lifting operation beats of the ejector rod seats are improved, and the lifting operation beats can be effectively kept in the state even if the lifting operation beats are used for a long time.

Drawings

FIG. 1 is a schematic diagram of a front view structure of an embodiment of the present utility model;

FIG. 2 is a schematic top view of FIG. 1;

FIG. 3 is a schematic perspective view of FIG. 1 with the faceplate removed;

FIG. 4 is a rear perspective view of FIG. 3;

FIG. 5 is a schematic cross-sectional view of A-A of FIG. 2;

FIG. 6 is a schematic cross-sectional view of a carrier rod seat, a master cylinder, etc. in the drive mechanism;

FIG. 7 is an enlarged schematic view of section I of FIG. 3;

FIG. 8 is a schematic view in section B-B of FIG. 1;

FIG. 9 is a schematic perspective view of the feed channel of FIG. 8;

FIG. 10 is a schematic view of the structure of a blank of a screw cap to be machined;

Fig. 11 is a schematic cross-sectional view of the injection mechanism (with the injection cam and upper injection head removed, etc.).

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

In the description of the embodiments below, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "axial," "circumferential," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, rather than to indicate or imply that the devices or elements being referred to must have a particular orientation, be configured and operated in a particular orientation, and that these directional terms are merely for illustration and should not be construed as limiting, as the terms "upper," "lower" are not necessarily limited to directions opposite or coincident with the direction of gravity, since the embodiments disclosed herein may be arranged in different orientations. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

The driving mechanism in this embodiment is applied to a post-forming device for a screw cap, and in order to better understand the structure and the working principle of the driving mechanism, the following begins with understanding the overall structure of the post-forming device for a screw cap.

As shown in fig. 1 to 11, a post forming device for a rotary cover is used for further processing a rotary gland blank 100, and comprises a frame 1, a driving mechanism 2, a plurality of processing tools 3, a conveying mechanism 4, a feeding mechanism 5 and a discharging mechanism 6, wherein the plurality of processing tools can be determined according to the processing requirement of a specific rotary cover, in this embodiment, the plurality of processing tools are respectively a pre-rolling tool 3a, a curling tool 3b and a rolling claw tool 3c, and meanwhile, a glue injection mechanism 7 is additionally arranged on the frame, and of course, the glue injection mechanism 7 can also be omitted.

Specifically, the frame 1 includes a frame body, and a panel 11, a side plate 12, a back plate 13 and a bottom plate 14 that are covered on the frame body, wherein an observation window can be designed on the panel 11, so that an operator can clearly see the operation of each component inside, the side plate 12, the back plate 13 and the bottom plate 14 can shield the inside of the frame body to play a role of dust prevention, and the like, and of course, a part can be opened as required, so that heat dissipation or maintenance is facilitated. In this embodiment, a table top 15 is disposed in the middle of the frame body, and feeding holes 151 and a plurality of processing holes are designed on the table top 15, which are distributed at intervals in the transverse direction, and the number of the plurality of processing holes can be determined according to the number of the middle working tools. In combination with the specific design of the above-mentioned multiple processing tools and the requirement of injecting glue, here, the table top 15 is respectively designed with a feeding hole 151, a pre-rolling processing hole 152, a hemming processing hole 15, a rolling claw processing hole 154 and a glue injecting hole 155 from left to right (please refer to fig. 1), and of course, the order of the above-mentioned holes can also be distributed from right to left according to the requirement. Meanwhile, the frame further comprises a vertical plate 16 positioned at the rear side of the table top 15 in the frame body, the vertical plate 16 divides the interior of the frame body into a front area and a rear area, and the front area is divided into an upper area positioned above the table top 15 and a lower area positioned below the table top 15 by the table top 15. Those skilled in the art will appreciate that the structure of the frame may vary widely and that the regions and shapes may be divided as desired.

The driving mechanism 2 is installed at the lower part of the frame 1, and comprises a main motor 21 and a main shaft 22 linked with the main motor. Specifically, the main motor 21 is mounted on the bottom plate 14 behind the vertical plates 16, the main shaft 22 is supported by main bearings on two vertical plates 17 (fixed to the bottom plate) located in the lower region, and the main shaft 22 is formed by connecting two short shafts in series by a coupling 23 in consideration of the length of the main shaft 22 being excessively long. The output shaft of the main motor 21 drives the main shaft 22 to rotate through a first belt pulley group 24, a plurality of main cams 25 corresponding to the number of the machining holes are arranged on the main shaft 22, ejector rod seats 26 which are positioned below the corresponding machining holes and can shuttle in the corresponding machining holes are supported on each main cam 25, and in an unoperated state, the top of each ejector rod seat 26 is not higher than the upper surface of the table top 15. Specifically, in combination with the above-described processing holes, the main cams 25 have three, namely, a pre-winding cam 25a, a hemming cam 25b, and a claw cam 25c (see fig. 3); the corresponding ejector pins 26 are a pre-rolled ejector pin 26a, a curled ejector pin 26b and a rolled claw ejector pin 26c (see fig. 5). The present utility model is further optimized in view of that each of the knock rod holders 26 is smoothly matched with the corresponding main cam 25, that is, the lower end of each of the knock rod holders 26 is fixed to the upper end of the piston rod 272 of the corresponding main cylinder 27, as shown in fig. 6, the lower end of the piston rod 272 of each of the main cylinders 27 is supported on the corresponding main cam 25, and in order to reliably match the lower end of the piston rod 272 of each of the main cylinders 27 with the corresponding main cam 25, the lower end of the piston rod of each of the main cylinders 27 is further provided with a first fixing seat 273 through a first cylinder sleeve 277 and a first pin 278, on which a first rolling body 274 adhered to the circumferential surface of the corresponding main cam 25 and second rolling bodies 275 respectively positioned at both sides of the corresponding main cam 25 are mounted, And third rolling bodies 276 capable of rolling on end faces of the corresponding sides of the respective main cams 25. In order to make the second and third rolling bodies move along the track which is consistent with the contour of the peripheral surface, it is further optimized that main rolling paths 251 for the second and third rolling bodies to roll are respectively formed on the two side end surfaces of the corresponding main cam 25, and the shape of each main rolling path 251 is consistent with the contour of the peripheral surface of the corresponding main cam 25. The rolling bodies can be in the form of roll shafts, ball bearings and the like. Meanwhile, in order to enable the first rolling bodies 274 to be always attached to the peripheral surface of the corresponding main cam 25, in addition to the springs adopted in the prior art, the structure is further optimized in this embodiment, that is, a sealing cavity 18 is enclosed by a partition plate in the lower area of the frame 1, the sealing cavity 18 can at least seal and enclose a part of each main cylinder 27 (that is, each main cylinder 27 passes through the sealing cavity 18), the wall surface of the cylinder body 271 of each main cylinder 27 is provided with an air hole 2711 for communicating the sealing cavity 18 with the inner cavity of the main cylinder 27, and the sealing cavity 18 is preset with a certain pressure, specifically, an air inlet pipe and an air outlet pipe which are communicated with an air source can be connected to the side wall of the sealing cavity 18, An air inlet valve and a pressure gauge can be installed on the air inlet pipe, an air outlet valve can be installed on the air outlet pipe, the pressure of the sealing cavity 18 is kept at a certain preset pressure by controlling the air inlet valve and the air outlet valve, the air with the preset pressure can enter the inner cavity of each main cylinder 27 to push the piston and the corresponding piston rod 272 to synchronously move downwards, and therefore the first rolling bodies 274 on the piston rods 272 of the main cylinders 27 can always have a trend of being in contact with the peripheral surfaces of the corresponding main cams 25. Obviously, by adopting the mode of feeding air to each main cylinder 27 by the same sealing cavity 18, the consistency and accuracy of the action beats of each ejector rod seat 26 are further improved.

Meanwhile, in the present embodiment, the above-described ejector pin seat 26 is further improved. Since the above-mentioned pre-rolled ejector pin holder 26a, the hemmed ejector pin holder 26b and the claw ejector pin holder 26c have the same structure, only one of the ejector pin holders 26 is taken as an example for illustration, and referring specifically to fig. 6, the ejector pin holder 26 includes a main tray 261, a hollow lower die 262 and an ejector pin 263, wherein the lower die 262 may be directly fixed to the piston rod 272 of the main cylinder 27, but in view of convenience of processing and assembly, the lower die 262 is fixed to the piston rod 272 of the main cylinder 27 through the same hollow lower die mounting seat 264, in particular, the lower die 262 is screwed to the lower die mounting seat 264, the periphery of the lower die mounting seat 264 is provided with a plurality of mounting holes, bolts penetrate through the mounting holes and an end cover 265 to be described below and are connected with a piston rod 272 of the main cylinder 24 in a threaded manner, namely, the lower die 262, the lower die mounting seat 264, the piston rod 272 of the main cylinder 27 and the end cover 265 positioned at the top of the piston rod 272 are fixed together, in order to prevent the piston rod 272 of the main cylinder 27 from excessively moving outwards from a cylinder body 271 of the main cylinder, a positioning strip 266 is also fixed at the top of the cylinder body 271 of the main cylinder, an avoidance groove 2721 which is used for the positioning strip 266 to radially penetrate through and move up and down relatively is arranged on the piston rod 272 of the main cylinder, The end cap 265 covers the upper port portion of the relief groove 2721 (it will be appreciated that the relief groove is in the form of a closed bore when the end cap 265 is designed to be integral with the piston rod 272 of the master cylinder). Due to the presence of the end cap 265 and the locating bar 2721, the piston rod 272 of the master cylinder can only move up and down within a height range defined between the end cap 265 and the bottom of the relief groove 2721. The ram 263 is vertically inserted into the lower mold 262 and the lower mold mounting seat 264, the lower end of the ram 263 passes through the end cap 265 and can be abutted against the positioning strip 266, the upper end of the ram 263 is fixed with the master tray 261, i.e. the master tray 261 is located in the lower mold 262, meanwhile, the ram 263 is sleeved with a compression spring 267, the upper end of the compression spring 267 is abutted against the inner wall step of the lower mold fixing seat 264, and the lower end of the compression spring 267 is abutted against the flange of the ram 263, so that the ram 263 always has a downward movement trend and the lower end of the ram 263 can be abutted against the positioning strip 266. when the rotary press cover 100 to be processed is in a lower position, namely, when the piston rod 272 of the main cylinder 27 corresponding to the main cam 25 is gradually moved to the lower position, the positioning bar 266 pushes the push rod 263 to move upwards and compresses the compression spring 267, so that the top surface of the main tray 261 on the push rod 263 is flush with the top of the lower die 262, and the rotary press cover 100 to be processed is ensured not to incline when moving on the main tray and the lower die, otherwise, the rotary press cover 100 to be processed cannot enter the upper die of the corresponding processing tool 3. When the highest point of the main cam 25 is gradually located at the high position, the piston rod 272 of the main cylinder 27 corresponding to the main cam 25 is gradually moved up to be located at the high position, at this time, the lower end of the push rod 263 is no longer propped against the positioning strip 266, under the action of the restoring force of the compression spring 267, the push rod 263 moves downward, and accordingly the main tray 261 moves downward, so that the top surface of the main tray 261 is lower than the top of the lower die 262, that is, a certain height difference (2 mm in the figure) exists between the main tray 261 and the lower die 262, after that, when the lower end of the push rod is propped against the positioning strip, the push rod and the main tray are no longer moved downward relative to the lower die, But moves up together with the lower die along with the upward movement of the piston rod of the main cylinder, thus ensuring the upward movement of the lower die 262, the push rod 263 and the main tray 261, achieving the purpose of jacking the processed spinning cover blank 100, and simultaneously being beneficial to stably placing the spinning cover blank on the main tray 261 and ensuring the stability in the processing process by utilizing the height difference between the top surface of the main tray 261 and the top of the lower die.

The number of the plurality of processing tools 3 is matched with a plurality of processing holes, namely a pre-rolling tool 3a, a curling tool 3b and a rolling claw tool 3c (see fig. 3 and 5) are respectively arranged on the frame 1 above the corresponding processing holes, namely in an upper area, and the processing tools are all of the prior art and are used for processing the pre-curling, the curling and the rolling claws of the unscrewed cover blank 100 on the corresponding ejector rod seat 26. Corresponding pre-rolling tools 3a and curling tools 3b are arranged on the frame, corresponding variable frequency motors 31 (see fig. 4) are further arranged on the frame, each variable frequency motor 31 is arranged on the vertical plate 16 and located in the rear area, each variable frequency motor 31 is connected with a rotating shaft 32 of the corresponding tool through a respective transmission component (such as a belt pulley group), the rotating shaft 32 is enabled to rotate, and curling on the peripheral surface of a unscrewed cover blank is achieved. Since the structure and the working principle are both the prior art, the detailed description will not be given here.

The conveying mechanism 4 is located in the upper area of the frame 1, the conveying mechanism 1 comprises a plurality of conveying wheels 41 and a conveying belt 42 wound on the conveying wheels, the conveying mechanism is driven by the main motor 21 through a transmission mechanism 28 to intermittently operate, and concretely, the transmission mechanism 28 comprises a divider 281 and a second belt pulley set which are installed on the frame 1, wherein the divider 281 is used for enabling the conveying belt 42 to stay at each hole position on the path table 15 for required time. A first pulley 282 of the second pulley set is mounted on the main shaft 22, a second pulley 283 of the second pulley set is mounted on the input end of the divider 281, and a second belt 284 of the second pulley set is wound around the first pulley 282 and the second pulley 283 (see fig. 4). The output end of the divider 281 is mounted with one of the plurality of conveying wheels 41, and the conveying wheel is a driving conveying wheel 411, and the remaining conveying wheels are driven conveying wheels 412, and as can be seen from fig. 3 and 5, the driven conveying wheels 412 are three, and are distributed at four corners of the upper region together with the driving conveying wheel 411. Of course, the driven conveying wheels may be four or five, and the plurality of conveying wheels 41 may be mounted on the vertical plate 16, and the axes of the conveying wheels may be arranged in a front-rear direction, so that one section of the conveying belt 42 wound around each conveying wheel 41 may be laid on the table 15. The conveyor belt 42 is sequentially provided with a plurality of through holes 421 for the unscrewed cover blank 100 to sit on along the length direction, and when the conveyor belt 42 is driven by the main motor 21, the second belt pulley set and the divider 281 to intermittently operate and is in a stop state, the feeding holes 151, the processing holes (the positions indicated by reference numerals 152, 153 and 154) and the glue injection holes 155 on the table top 15 correspond to the corresponding through holes on the section of conveyor belt up and down.

The feeding mechanism 5 can drive the to-be-processed unscrewed cover blanks 100 to move towards the feeding hole 151 one by one, and can drop the to-be-processed unscrewed cover blanks 100 into the corresponding through holes 421 of the conveying belt 42. Specifically, referring to fig. 3, 7 and 8, the feeding mechanism 5 includes a feeding channel 51 with a blanking hole 511 and a pushing structure 52 for pushing the blank of the unscrewed cover at the blanking hole 511 into the through hole of the conveyor belt one by one, wherein the blanking hole 511 penetrates through the feeding channel 51 in the vertical direction, and the blanking hole 511 is located above the section of the conveyor belt above the feeding hole 151. The pushing structure 52 further comprises an eccentric wheel 521, a lifting link assembly and a pressing head 522, wherein the eccentric wheel 521 is mounted on the main shaft 22, i.e. the eccentric wheel 521 and the main cams 25 are mounted on the same shaft to be capable of being linked together. A lifting link assembly is supported on the eccentric 521 to be movable up and down (which may also be referred to as a crank-rocker mechanism) with rotation of the eccentric 521, and specifically, includes a link 523 having a lower end supported on the eccentric 521 and a lifting rod 524 (see fig. 8) hinged to an upper end of the link 523, the lifting rod 524 being penetrated in an upright guide cylinder 525, and a pressing head 522 being provided at an upper end of the lifting rod 524, the pressing head 522 being located above the discharging hole 511 to press the unscrewed cover blank 100 entered into the discharging hole 511 from the feeding passage 51 into the through hole 421 of the conveyor belt above the discharging hole 151 upon downward movement. The carrier belt 42 is then intermittently moved to sequentially transport the open-cover blanks 100 carrying the blanks fed by the feed mechanism to a plurality of tooling holes downstream.

In order to enable the unscrewed cover blank in the feeding channel 51 to sequentially and smoothly move towards the blanking hole 511, a power source, which can be pressure gas sprayed from the air tap 53, is also arranged on the frame 1, and the air tap 53 is connected with a gas source through a gas pipe. Other power devices such as a cylinder and the like are also possible.

In view of the fact that the blank 100 is unscrewed into the through hole 421 of the conveyor belt, a blocking phenomenon may occur, and in order to prevent the conveyor belt 42 from continuing to operate in time when the blocking phenomenon occurs, in this embodiment, a further improvement is that the pressing head 522 is mounted on a piston rod of a magnetic cylinder 54, and a cylinder body of the magnetic cylinder 54 is fixed on the lifting rod 524. Thus, when the phenomena such as clamping and the like occur, the clamped cap unscrewing blank pushes the piston rod of the magnetic cylinder 54 to move upwards, so that the magnetic switch on the magnetic cylinder 54 can be triggered, and the controller can stop the related components such as the main motor 21 and the like after receiving the signals.

In the production process, when the subsequent unscrewed cover blank is too fast or slow to enter the blanking hole 511 above the conveying belt, the phenomenon that the pressing head 522 presses and holds half of the unscrewed cover blank 100 occurs. In order to ensure that the subsequent unscrewed cap blanks can enter the blanking holes 511 above the conveyor belt accurately on time, a material fixing cylinder 55 is mounted above the feeding channel 51, and a piston rod of the material fixing cylinder 55 stretches up and down to release or press the unscrewed cap blanks adjacent to the blanking holes 511. When the screw-off cover blank is conveyed away, the piston rod of the fixed material cylinder 55 can move upwards, and under the action of the power source, the screw-off cover blank 100 can be completely positioned above the through hole 421 of the conveying belt 42, and the material pressing head 522 just falls down to press the screw-off cover blank into the through hole 421.

Further, it is considered that when the press head 522 is lifted, the screw-off cover blank 100 pressed into the through hole may be lifted up by friction force or the like. For this reason, in the present embodiment, a pressing cover 56 is further laid on the feeding channel 51, a pressing strip 561 extending toward the blanking hole 511 and located below the pressing head 522 is provided on the pressing cover 56, and a avoiding channel 5221 for passing through the pressing strip in the vertical direction is provided on the pressing head 522, wherein the pressing strip 561 is designed to be Y-shaped, and of course, may be a straight shape or other shape structure. When the pressing head 522 is lifted, even if the unscrewed cover blank 100 in the through hole 421 has the phenomenon of upwards following, the unscrewed cover blank 100 can be blocked below due to the existence of the pressing strip 561, so that the pressing head 522 can be moved upwards without any involvement.

The above-mentioned glue injection mechanism 7 includes a glue injection cam 71 mounted on the main shaft 22, a vertical shaft 72 supported on the glue injection cam 71, and a glue injection head 73 located in an upper region, please refer to fig. 3, 5 and 11, wherein the vertical shaft 72 is located below a glue injection hole 155 on the table top 15, a glue injection tray 74 capable of being shuttled into the glue injection hole 155 and not higher than the upper surface of the table top 15 in the non-working state is mounted on the top of the vertical shaft 72, the glue injection head 73 is supported on the vertical plate 16 by a glue injection seat 75, and the glue injection head 73 is communicated with a glue source by a glue tube so as to inject glue to a unscrewed cap semi-finished product on the glue injection tray 74 ejected out of a through hole of the conveyor belt.

Also, considering that the vertical shaft 72 can be smoothly matched with the glue injection cam 71, the utility model is further optimized, namely, the lower end of the vertical shaft 72 is supported on the glue injection cam 71 through a piston rod 761 of a glue injection cylinder 76, the glue injection cylinder 76 is at least partially positioned in the sealing cavity 18, an air passage 7621 communicated with the sealing cavity 18 and the inner cavity of the glue injection cylinder 76 is formed on the wall surface of a cylinder 762 of the glue injection cylinder 76, and in the same way, the pressure in the sealing cavity 18 is utilized to act on the piston 761 of the glue injection cylinder 76, so that the piston rod 761 of the glue injection cylinder 76 is pushed to move downwards, and the lower end of the piston rod 761 of the glue injection cylinder 76 always has the trend of being in contact with the peripheral surface of the glue injection cam 71.

In order to uniformly apply glue to a desired portion of the semi-finished product of the spin-cover, it is preferable to rotate the glue injection head 73 and the semi-finished product of the spin-cover, in which the semi-finished product of the spin-cover is rotated, that is, the glue injection tray 74 and the vertical shaft 72 below are rotated, in order to achieve the function that the vertical shaft 72 can rotate and move up and down, in this embodiment, the vertical shaft 72 is designed as a spline shaft matched with the spline housing 721, the lower portion of the vertical shaft 72 is supported on the piston rod 761 of the glue injection cylinder 76 through a lower bearing (see fig. 11), the spline housing 721 sleeved on the upper portion of the vertical shaft 72 is supported on a bearing seat 77 through an upper bearing, the bearing seat 77 is provided with electric eyes 771 for detecting the semi-finished product of the spin-cover, and each electric eye 771 is inserted into a corresponding detection hole of the glue injection bottom plate 78 on the table 15. The middle part of the vertical shaft 72 is also sleeved with a driving wheel 79 fixed with a spline housing 721. Meanwhile, a first motor 70 (see fig. 4) is installed in the rear area of the frame 1 and drives the driving wheel 79 to rotate through a driving structure, and in this embodiment, the driving structure also adopts a belt pulley set, so that the driving wheel is a driving belt wheel. Of course, gears may be used to effect the linkage if desired. In this way, the driving wheel 79 can be driven to rotate by the driving structure through the rotation of the first motor 70, so that the vertical shaft 72, the glue injection tray 74 and the semi-finished product of the unscrewing cover on the glue injection tray 74 can rotate together. Meanwhile, when the glue injection cam 71 rotates, the vertical shaft 72 can also realize the movement under the pushing of the piston rod 761 of the glue injection cylinder 76, so as to realize the lifting of the glue injection tray 74 and the semi-finished product of the rotary cover on the glue injection tray.

Also, in consideration of reliable contact between the lower end of the piston rod 761 of the injection cylinder 76 and the injection cam 71, a second fixing seat 765 is mounted at the lower end of the piston rod of the injection cylinder 76 through a second cylinder sleeve 763 and a second pin 764, a fourth rolling element 765 attached to the circumferential surface of the injection cam 71 and fifth and sixth rolling elements 767 and 768 located on both sides of the injection cam 71 are mounted on the second fixing seat 765, and injection raceways 711 for the fifth and sixth rolling elements to roll are formed on both side end surfaces of the injection cam 71, respectively (see fig. 5), and the shape of each injection raceway 711 is also consistent with the shape of the circumferential surface profile of the injection cam 71. By the design, the glue injection cam 71 is linked with each main cam 25, and the same sealing cavity 18 is utilized for air intake of each main air cylinder 27 and each glue injection air cylinder 76, so that the consistency and accuracy of the beats of the curling, the curling claws and the glue injection actions can be further improved.

The above-mentioned blanking mechanism 6 is located below the table top 15, i.e. in the lower region, and it is able to detach finished unscrewed cover products located on the conveyor belt 42 from the conveyor belt 42. Specifically, the blanking mechanism 6 includes a conveyor belt 63 wound around a driving wheel 61 and a driven wheel 62 and driven by a second motor (not shown) to rotate around, a magnetic plate 64 adjacent to the conveyor belt is disposed below a carrying surface of the conveyor belt 63, and the magnetic plate 64 can adsorb processed and unscrewed cap products on the conveyor belt onto the conveyor belt and convey the caps into containers connected with the conveyor belt along with the operation of the conveyor belt.

Meanwhile, considering that the eccentric wheel 521, each main cam 25 and the glue injection cam 71 need to be lubricated continuously, a driving sprocket 8 is also installed on the main shaft 22, a driven sprocket 9 is installed on the vertical plate 16 and is located in the rear area, a chain (not shown in the figure) is wound on the driving sprocket and the driven sprocket, and the driven sprocket 9 is installed on an oil pump shaft (not shown in the figure), so that the oil pump can be driven to work along with the rotation of the main shaft 22, and lubricating oil is further added to the eccentric wheel 521, each main cam 25 and the glue injection cam 71 through oil pipes.

While the conveyor belt 42, the conveyor belt 63, and the first and second pulley sets are configured with corresponding tensioning devices in view of the fact that they are loose for a period of time, these are well known in the art and will not be described in detail herein.

When in use, the main motor 21 is started, the main shaft 22 is driven to rotate by the first belt pulley group 24, and then the eccentric wheel 521, the main cams 25 and the glue injection cams 71 rotate together, so that the lifting connecting rod assembly, the ejector rod seats 26 and the vertical shafts 72 are lifted up and down. At the same time, the main motor 21 is started to intermittently operate the conveyor belt through the second belt pulley set and the divider 281. At the same time, the unscrewed cover blanks 100 are fed onto the section of conveyor belt above the feeding holes one by one through the feeding channel 51, and are pressed into the corresponding through holes 421 through the pressing heads 522, after which, with each operation of the conveyor belt 42, the unscrewed cover blanks of the previous processing station are conveyed to the next processing station by the conveyor belt 42, that is, the unscrewed cover blanks 100 above the feeding holes 151 are conveyed to the positions above the pre-roll processing holes 152, the unscrewed cover blanks 100 above the pre-roll processing holes 152 are conveyed to the positions above the hemming processing holes 153, the unscrewed cover blanks 100 above the hemming processing holes 153 are conveyed to the positions above the winding claw processing holes 154, the unscrewed cover semi-finished products above the winding claw processing holes 154 are conveyed to the positions above the glue injection holes 155, and when the conveyor belt is in a stop state, the unscrewed cover blanks at the corresponding positions are jackrod seats 26 and the vertical shafts 72 are lifted up and separated from the corresponding through holes 421, the corresponding glue injection heads 32 are driven by the corresponding rotary shafts 32, and the synchronous winding tools 32 are simultaneously driven by the rotary shafts 32, and the synchronous winding tools are completed. At the same time, the pressing cylinder on the feeding channel 51 acts to release the held unscrewed cover blank, and under the action of the power source, the other unscrewed cover blank enters the blanking hole 511 and is pressed into the through hole 421 above the feeding hole under the action of the pressing head 522. And the unscrewed cap product above the conveyor belt 63 is attracted to the conveyor belt 63 by the magnetic plate 64, and the conveyor belt 63 is operated with the rotation of the second motor, and the unscrewed cap product is collected in the container. The process is repeated periodically, the post-processing of the rotary cover is realized, the production efficiency is high, and the product quality can be ensured.

Claims (7)

1. The utility model provides a actuating mechanism in post forming device of swivel cap, installs frame (1) lower part in post forming device, and the frame has mesa (15) of establishing a plurality of processing holes, actuating mechanism is including main motor (21) and main shaft (22) that link with main motor (21), installs a plurality of main cams (25) corresponding with processing hole quantity on this main shaft (22), supports on each main cam (25) and is located corresponding processing hole below and can shuttle ejector pin seat (26) in corresponding processing hole, and under unoperated state, the top of each ejector pin seat (26) is not higher than the upper surface of mesa (15), its characterized in that: the lower end of each ejector rod seat (26) is fixed on a piston rod (272) of a corresponding main cylinder (27), the piston rod (272) of each main cylinder (27) is supported on a corresponding main cam (25), a sealing cavity (18) which at least can seal and enclose part of each main cylinder (27) and is preset with certain pressure is arranged in the frame (1), and an air hole (2711) which is used for communicating the sealing cavity (18) with the inner cavity of each main cylinder (27) is formed in the wall surface of the cylinder body of each main cylinder (27), so that the piston rod of each main cylinder (27) always has a trend of being in contact with the peripheral surface of the corresponding main cam (25).

2. The drive mechanism of claim 1, wherein: a first fixed seat (273) is mounted at the lower end of a piston rod of each main cylinder (27), and a first rolling body (274) attached to the peripheral surface of the corresponding main cam (25), and a second rolling body (275) and a third rolling body (276) respectively positioned on both sides of the corresponding main cam (25) are mounted on the first fixed seat (273), and the second and third rolling bodies can roll on the end surfaces of the corresponding sides of the corresponding main cam (25).

3. The drive mechanism of claim 2, wherein: main raceways (251) for the second rolling bodies and the third rolling bodies to roll are respectively arranged on the two side end surfaces of each main cam (25), and the shape of each main raceway (251) is consistent with the outline shape of the peripheral surface of the corresponding main cam (25).

4. A drive mechanism according to claim 1 or 2 or 3, wherein: the automatic glue injection device is characterized by further comprising a glue injection cam (71) arranged on the main shaft (22), a glue injection cylinder (76) and a vertical shaft (72) with the lower end supported on the glue injection cam (71) through a piston rod of the glue injection cylinder (76), wherein the vertical shaft (72) is positioned below a glue injection hole (155) on a table top, a tray (74) which can shuttle in the glue injection hole (155) and is not higher than the upper surface of the table top (15) in a non-working state is arranged at the top of the vertical shaft (72), the glue injection cylinder (76) is at least partially positioned in the sealing cavity (18), and an air passage (7621) communicated with the sealing cavity (18) and the inner cavity of the glue injection cylinder (76) is formed in the cylinder body wall surface of the glue injection cylinder (76), so that the piston rod of the glue injection cylinder (76) always has a trend of being in contact with the peripheral surface of the glue injection cam (71).

5. The drive mechanism as recited in claim 4, wherein: the vertical shaft (72) is designed into a spline shaft matched with a spline sleeve (721), the lower part of the vertical shaft (72) is supported on a piston rod of the glue injection cylinder (76) through a lower bearing, the spline sleeve (721) is supported on a bearing seat (77) through an upper bearing, a driving wheel (79) fixed with the spline sleeve (721) is sleeved in the middle of the vertical shaft (72), and a first motor (70) which drives the driving wheel to rotate through a driving structure is arranged on the frame (1).

6. The drive mechanism as recited in claim 5, wherein: the lower extreme of the piston rod of injecting glue cylinder (76) is installed second fixing base (765), installs fourth rolling element (766) and fifth rolling element (767), the sixth rolling element (768) that are located injecting glue cam (71) both sides on this second fixing base (765) and laminating with injecting glue cam (71) global, open respectively on injecting glue cam (71) both sides terminal surface and supply the rolling injecting glue raceway (711) of fifth, sixth rolling element, the shape of each injecting glue raceway (711) is unanimous with the global contour shape of injecting glue cam (71).

7. A drive mechanism according to claim 1 or 2 or 3, wherein: the ejector rod seat (26) comprises a main tray (261), a hollow lower die (262) and an ejector rod (263), wherein the lower die (262) is fixed on a piston rod (272) of the main cylinder (27), a positioning strip (266) is further fixed at the top of a cylinder body (271) of the main cylinder, an avoidance groove (2721) which is used for the positioning strip (266) to radially penetrate and relatively move up and down is formed in the piston rod (272) of the main cylinder, the ejector rod (263) is vertically inserted in the lower die (262), the main tray (261) is fixed at the upper end of the ejector rod (263), a compression spring (267) acting on the ejector rod is sleeved on the ejector rod (263), the compression spring (267) can enable the ejector rod (263) to always have a downward moving trend against the positioning strip (266), and when the highest point of the main cam (25) is gradually in a low state, the top surface of the main tray (261) on the ejector rod (263) is flush with the top of the lower die (262); the top surface of the main tray (261) is lower than the top of the lower die (262) when the highest point of the main cam (25) is gradually in a high state.