CN117142013A - Post forming device for rotary cover - Google Patents

Abstract

The post forming device for the rotary cover is improved on the basis of the existing frame, a driving mechanism, a plurality of processing tools, a feeding mechanism and the like, and further comprises a conveying mechanism which is driven by a main motor through a transmission mechanism and can intermittently operate, wherein the conveying mechanism comprises a plurality of conveying wheels and a conveying belt wound on the conveying wheels, a plurality of through holes for the rotary cover blank to sit are sequentially formed in the length direction of the conveying belt, one section of the conveying belt can be paved on a table top, and a feeding hole and each processing hole on the table top correspond to the corresponding through hole on the section of conveying belt in a stopping state; and a blanking mechanism is also arranged below the table top, so that finished products with unscrewed covers on the conveying belt can be separated from the conveying belt. By adopting the structure, the accuracy and the reliability of feeding and jacking operation beats can be ensured, and the conveying belt can be utilized for intermittently operating and conveying the unscrewed cover blank, so that the whole structure is simple, and the regulation, the control and the implementation are easy.

Description

Post forming device for rotary cover

Technical Field

The invention relates to the technical field of production equipment of a rotary cover, in particular to a post forming device of the rotary cover.

Background

Many foods (such as fruits, pickles, seasonings and the like) in the existing market are contained in a glass bottle, and a unscrewed cover is arranged on the bottle mouth of the glass bottle to play a role in sealing the glass bottle. At present, the unscrewing cover is formed by cutting and blanking a metal sheet (with tin plates with double-sided coatings and aluminum plates), blanking and stamping to form an unscrewing cover blank, 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 baking and curing at high temperature to form the unscrewing cover finished product.

In the process of manufacturing the rotary cover, each process is conventionally processed on different equipment, for example, some processing devices are disclosed in a rotary cover glue injection auxiliary device and a glue injection method thereof of Chinese patent application publication No. CN115108280A, a punching machine for producing a metal bottle cover of CN216679742U, and the like. However, with the progress of technology, at present, a plurality of post forming devices (processing equipment after blanking and punching into unscrewed cover blanks) are assembled on the same equipment, for example, an intelligent linkage cover forming machine disclosed in the document of Chinese publication No. CN216989618U can drive a plurality of tray cams to rotate by adopting the same power motor, and drive corresponding ejector rod seats 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 operations 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.

Disclosure of Invention

The invention aims to solve the technical problem of providing a post-forming device for a rotary cover, which can ensure the accurate and reliable beat of feeding and jacking operation.

The technical scheme adopted for solving the technical problems is as follows: a post-forming device for a spin-on cover, comprising:

the machine frame is provided with a table top, and feeding holes and a plurality of processing holes are arranged on the table top at intervals in the transverse direction;

the driving mechanism is arranged at the lower part of the frame and comprises a main motor and a main shaft linked with the main motor, a plurality of main cams corresponding to the number of the 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, and the top of each ejector rod seat is not higher than the upper surface of the table board in the non-working state;

the machining tools are matched with the machining holes in number and are respectively arranged on the machine frame above the corresponding machining holes and used for machining unscrewed cover blanks on the corresponding ejector rod seats;

the feeding mechanism can drive the blank to be processed with the cover unscrewed to move towards the feeding hole one by one;

The method is characterized in that: the conveying mechanism comprises a plurality of conveying wheels arranged on a frame above a table top and a conveying belt wound on each conveying wheel, wherein a plurality of through holes for a unscrewed cover blank to sit are sequentially formed in the conveying belt along the length direction, one section of the conveying belt can be paved on the table top, a feeding hole on the table top, each processing hole corresponds to a corresponding through hole on the section of the conveying belt in a stalling state up and down, and the intermittent operation of the conveying belt can sequentially convey the unscrewed cover blank carried by the feeding mechanism to a plurality of downstream processing holes;

and a blanking mechanism is arranged below the table top, so that processed unscrewed cover products positioned on the conveying belt can be separated from the conveying belt.

In the above scheme, in order to further improve accuracy and reliability of the beat, it is further optimized that 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 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 an air hole which is communicated with the sealing cavity and an inner cavity of the main cylinder is formed in a wall surface of a 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 the above-mentioned optimization scheme, the lower extreme of the piston rod of each main cylinder is installed first fixing base, installs on this first fixing base with the first rolling element that corresponds the global laminating of main cam and be located the second, the third rolling element of corresponding main cam both sides respectively, this second, the third rolling element can roll on the terminal surface of the corresponding side of corresponding main cam to reduce the resistance when moving, make jacking work go on smoothly.

In the above improvement, main raceways for the second and third rolling bodies to roll are respectively formed on the end surfaces of both sides of each main cam, and the shape of each main raceway is consistent with the contour shape of the peripheral surface of the corresponding main cam. The main rollaway nest on two sides is utilized, so that the limiting effect is better, and the rolling is smoother.

In the above schemes, further improvement is that the feeding mechanism comprises a feeding channel with a blanking hole, a pushing structure for pushing unscrewed cover blanks at the blanking hole to enter the through holes of the conveying belt above the feeding hole one by one, the pushing structure comprises an eccentric wheel arranged on the main shaft, a lifting connecting rod assembly supported on the eccentric wheel and capable of moving up and down along with the rotation of the eccentric wheel, and a pressing head connected with the lifting connecting rod assembly, the blanking hole penetrates through the feeding channel up and down, the blanking hole is positioned above the section of the conveying belt above the feeding hole, the pressing head is positioned above the blanking hole, and the unscrewed cover blanks at the blanking hole can be pressed into the through holes of the conveying belt above the feeding hole when the pressing head moves down. Therefore, the pushing structure is linked with other main cams on the main shaft, so that the feeding operation is consistent with the beats of feeding and jacking operations, and the accuracy of the overall action is further improved.

In order to prevent the blank of the unscrewing cover pressed into the through hole from moving upwards along with the pressing head, the feeding channel is further paved with a pressing cover, the pressing cover is provided with a pressing holding strip which extends towards the blanking hole direction and is positioned below the pressing head, and the pressing head is provided with an avoidance channel for the pressing holding strip to pass through in the vertical direction.

In order to avoid incomplete feeding, a fixed material cylinder is arranged above the feeding channel, and a piston rod of the fixed material cylinder stretches up and down to release or press a blank with a unscrewed cover, which is adjacent to the blanking hole. The blank with the cover opened by unscrewing can be timely and completely fed into the blanking hole by controlling the fixed material cylinder.

In order to prevent the follow-up action in time when the phenomena of blocking the cover and the like occur, the improvement is that the material pressing head is arranged on a piston rod of a magnetic cylinder, and a cylinder body of the magnetic cylinder is fixed on the lifting rod. The piston rod of the magnetic cylinder is pushed to move upwards by the material pressing head, so that a magnetic switch on the magnetic cylinder is triggered to send an alarm signal.

Preferably, a power source is further arranged for driving the blank to be processed and the cover to be unscrewed to sequentially move forward in the feeding channel towards the blanking hole. The power source is preferably pressure gas sprayed out of the air tap, and the air tap is connected with the air source through an air pipe. So that the driving effect is good and the cost is low.

In order to enable the post forming device to have more functions, the post forming device further comprises a glue injection mechanism, a glue injection hole which is positioned at the downstream of the processing holes and corresponds to the corresponding through hole on the section of conveying belt is correspondingly formed in the table top, the glue injection mechanism comprises a glue injection cam which is arranged on the main shaft, a vertical shaft which is supported on the glue injection cam and is positioned below the glue injection hole, and a glue injection head, wherein the top of the vertical shaft is provided with a glue injection 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, the glue injection head is arranged on a frame on the table top, and is communicated with a glue source through a glue pipe and used for unscrewing a cover semi-finished product glue injection on the glue injection tray which is ejected out of the through hole of the conveying belt. 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 curled edges and the like can be ensured.

In order to ensure that the vertical shaft can be reliably attached to the peripheral surface of the glue injection cam all the time, the lower end of the vertical shaft is supported on the glue injection cam through a piston rod of a glue injection cylinder, 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 the piston rod of the glue injection cylinder always has a tendency of attaching and contacting with the peripheral surface of the glue injection cam.

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 housing matched with a spline shaft, 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 each of the above solutions, it is still further optimized that the blanking mechanism includes a conveyor belt wound around the driving wheel and the driven wheel and driven by the second motor to rotate around, and a magnetic plate adjacent to the conveyor belt is disposed below the carrying surface of the conveyor belt, and the magnetic plate can adsorb the processed unscrewed cap products on the conveyor belt onto the conveyor belt.

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 invention drives the main shaft, each main cam to rotate and intermittently operates the conveying belt through the main motor, so that the spinning cover blank in the through hole of the section of conveying belt paved on the table top is conveyed to the corresponding processing hole position, and meanwhile, the ejector rod seat on which each main cam rotates is lifted to be in place and matched with the corresponding processing tool to finish the processing at the corresponding station.

Drawings

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

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 invention 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 invention 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.

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 invention is further optimized in view of that each knock pin seat 26 is smoothly matched with the corresponding main cam 25, that is, the lower end of each knock pin seat 26 is fixed at the upper end of the piston rod 272 of the corresponding main cam 27, as can be seen in fig. 6, the lower end of the piston rod 272 of each main cylinder 27 is supported on the corresponding main cam 25, and in order to make the lower end of the piston rod 272 of each main cylinder 27 be reliably matched with the corresponding main cam 25, the lower end of the piston rod of each main cylinder 27 is also provided with a first fixing seat 273 through a first cylinder sleeve 277 and a first pin 278, and a first rolling body 274 which is adhered to the peripheral surface of the corresponding main cam 25, and a second rolling body 275 and a third rolling body 276 which are respectively positioned at both sides of the corresponding main cam 25 are mounted on the end surfaces of the corresponding sides of the corresponding main cam 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 make the first rolling bodies 274 always adhere to the peripheral surface of the corresponding main cam 25, besides 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 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, and 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, and 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 move down synchronously, so that the first rolling bodies 274 on each main cylinder 27 always have a trend of contacting the corresponding main cam 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. Because the pre-rolled ejector pin seat 26a, the curled ejector pin seat 26b and the curled ejector pin seat 26c have the same structure, only one of the ejector pin seats 26 is taken as an example for illustration, and referring still to fig. 6 specifically, the ejector pin seat 26 includes a master tray 261, a hollow lower die 262 and an ejector pin 263, wherein the lower die 262 can be directly fixed on the piston rod 272 of the master cylinder 27, but in view of convenience of processing and assembling, the lower die 262 is fixed on the piston rod 272 of the master cylinder 27 through the same hollow lower die mounting seat 264, specifically, the lower die 262 is in threaded connection with the lower die mounting seat 264, a plurality of mounting holes are formed on the periphery of the lower die mounting seat 264, bolts pass through the mounting holes and the lower end cap 265 and are in threaded connection with the piston rod 272 of the master cylinder 24, that is, the lower die 262 and the lower die mounting seat 264 are fixed with the piston rod 272 of the master cylinder 27 and the end cap 272 positioned on the top of the piston rod, and in order to prevent the piston rod 272 of the master cylinder 27 from excessively moving outside the master cylinder 27 from being fixed on the piston rod 272, and the piston rod 272 can be positioned in a way of the opposite to the upper end cap 265 and the upper end cap 21 when the upper end cap 265 is opened and the upper end cap is positioned opposite to the upper end cap 21. 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 ram 263 is not propped against the locating strip 266, under the action of the restoring force of the compression spring 267, the ram 263 moves down, and then the main tray 261 moves down, 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 drawing) exists between the main tray 261 and the lower die 262, after the lower end of the ram is propped against the locating strip, the ram and the main tray are not moved down relative to the lower die, but move up together with the lower die along with the upward movement of the piston rod of the main cylinder, so that the lower die 262, the ram 263 and the main tray 261 are not only moved up to achieve the purpose of jacking the processed spinning cap blank 100, but also can utilize the height difference between the top surface of the main tray 261 and the top of the lower die to help the spinning cap to be placed on the main tray 261 stably, and the stability in the processing process is ensured.

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 invention 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 half-finished product of the spin-cover, it is preferable to rotate the glue injection head 73 and the half-finished product of the spin-cover, in which the half-finished product of the spin-cover is rotated, that is, the glue injection tray 74 and the vertical shaft 72 below are rotated, and 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 half-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 which is fixed with a spline sleeve 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 (13)

1. A post-forming device for a spin-on cover, comprising:

the machine frame (1) is provided with a table top (15), and feeding holes (151) and a plurality of processing holes which are distributed at intervals in the transverse direction are designed on the table top (15);

the driving mechanism (2) is arranged at the lower part of the frame (1) and comprises a main motor (21) and a main shaft (22) linked with the main motor (21), a plurality of main cams (25) corresponding to the number of the processing holes are arranged on the main shaft (22), the main cams (25) are supported with ejector rod seats (26) which are positioned below the corresponding processing holes and can shuttle in the corresponding processing holes, and in the non-working state, the top of each ejector rod seat (26) is not higher than the upper surface of the table top (15);

the machining tools (3) are matched with the machining holes in number and are respectively arranged on the frame (1) above the corresponding machining holes and used for machining the unscrewed cover blank (100) on the corresponding ejector rod seat (26);

the feeding mechanism (5) can drive the blank (100) of the unscrewed cover to be processed to move towards the feeding hole (151) one by one;

the method is characterized in that: the rotary cover blank processing device is characterized by further comprising a conveying mechanism (4) which is driven by the main motor (21) through a transmission mechanism (28) and can intermittently operate, wherein the conveying mechanism comprises a plurality of conveying wheels (41) arranged on a frame (1) above a table top (15) and a conveying belt (42) wound on each conveying wheel, a plurality of through holes (421) for enabling a rotary cover blank (100) to sit on are sequentially formed in the conveying belt along the length direction, one section of the conveying belt (42) can be paved on the table top (15), a feeding hole (151) on the table top (15), each processing hole corresponds to a corresponding through hole (421) on the section of the conveying belt in a stopping state, and the rotary cover blank (100) conveyed by the feeding mechanism (5) can be sequentially conveyed to a plurality of processing holes at the downstream through intermittent operation of the conveying belt (42);

And a blanking mechanism (6) is also arranged, and the blanking mechanism (6) is positioned below the table top (15) and can separate finished unscrewed cover products positioned on the conveying belt from the conveying belt (42).

2. The post-forming apparatus for a spin-on cover according to claim 1, wherein: 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 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).

3. The post-forming apparatus for a spin-on cover according to claim 2, 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).

4. A post-forming device for a spin-on cover as claimed in claim 3, 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).

5. Post-forming device for a rotary cover according to any one of claims 1 to 4, characterized in that: the feeding mechanism (5) comprises a feeding channel (51) with a blanking hole (511), a pushing structure (52) pushing the blank (100) of the blanking hole (511) to enter the through hole (421) of the conveying belt above the feeding hole (151) one by one, and the pushing structure comprises an eccentric wheel (521) arranged on the main shaft (22), a lifting connecting rod assembly supported on the eccentric wheel (521) and capable of moving up and down along with rotation of the eccentric wheel (521), and a pressing head (522) linked with the lifting connecting rod assembly, wherein the blanking hole (511) penetrates through the feeding channel (51) up and down, the blanking hole (511) is positioned above the conveying belt above the feeding hole (151), the pressing head (522) is positioned above the blanking hole (511), and the blank (100) of the blanking hole (511) can be pressed into the through hole (421) above the feeding hole (151) when the pressing head (522) moves down.

6. The post-forming apparatus for a spin-on cover according to claim 5, wherein: the feeding channel (51) is further provided with a pressing cover (56), the pressing cover (56) is provided with a pressing strip (561) which extends towards the blanking hole (511) and is positioned below the pressing head (522), and the pressing head (522) is provided with an avoidance channel (5221) for the pressing strip (561) to pass through in the vertical direction.

7. The post-forming apparatus for a spin-on cover according to claim 5, wherein: a fixed material cylinder (55) is arranged above the feeding channel (51), and a piston rod of the fixed material cylinder (55) stretches up and down to release or press a unscrewed cover blank (100) adjacent to the blanking hole (511).

8. Post-forming device for a twist-off cover according to claim 2 or 3 or 4, characterized in that: the automatic glue injection device is characterized by further comprising a glue injection mechanism (7), correspondingly, a glue injection hole (155) which is positioned at the downstream of the processing holes and corresponds to the corresponding through hole on the section of the conveying belt is formed in the table top (15), the glue injection mechanism comprises a glue injection cam (71) which is arranged on the main shaft (22), a vertical shaft (72) which is supported on the glue injection cam (71) and is positioned below the glue injection hole (155) and a glue injection head (73), a glue injection tray (74) which can be shuttled into the glue injection hole (155) and is not higher than the upper surface of the table top (15) in the non-working state is arranged at the top of the vertical shaft (72), the glue injection head (73) is arranged on the frame (1) above the table top (15), and the glue injection head (73) is communicated with a glue source through a glue pipe and is used for injecting glue to a semi-finished product of a screw cap on the glue injection tray (74) which is ejected out of the through hole of the conveying belt.

9. The post-forming apparatus for a spin-on cover of claim 8, wherein: the lower end of the vertical shaft (72) is supported on the glue injection cam (71) through a piston rod of a glue injection cylinder (76), 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 wall surface of the cylinder body 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).

10. A post-forming apparatus for a spin-on cover according to claim 9, wherein: the vertical shaft (72) is designed into a spline shaft matched with the 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) for driving the driving wheel to rotate through a driving structure is arranged on the frame (1).

11. The post-forming apparatus for a spin-on cover of claim 8, 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).

12. Post-forming device for a rotary cover according to any one of claims 1 to 4, characterized in that: the blanking mechanism (6) comprises a conveyor belt (63) which is wound on a driving wheel (61) and a driven wheel (62) and is driven by a second motor to rotate in a roundabout way, a magnetic plate (64) adjacent to the conveyor belt is arranged below a bearing surface of the conveyor belt (63), and the magnetic plate (64) can adsorb finished unscrewed cover products on the conveyor belt (42) to the conveyor belt (63).

13. Post-forming device for a rotary cover according to any one of claims 2 to 4, characterized in that: 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 (24), a positioning strip (266) is 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 move up and down relatively 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 move downwards all the time and to be propped against the positioning strip (266), and when the highest point of the main cam (25) is gradually in a low-level 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.