Compression molding circulating production line

Abstract

The invention discloses a compression molding circulation production line which comprises a main workbench, a first conveying mechanism, a mold hooking and pulling mechanism, a bottom plate pressing mechanism, a feeding and pressing mechanism, a secondary pressing mechanism, a first pushing mechanism, a second conveying mechanism, a second pushing mechanism, a third conveying mechanism, a third pushing mechanism, a fourth conveying mechanism, a main press, a demolding mechanism and a film feeding mechanism. The circulating device is reasonable in structural layout, and on a concentric-square-shaped circulating conveying line composed of the four conveying mechanisms, the circulating molds can sequentially flow to all the mechanisms for corresponding operation; a series of automatic operations such as automatic conveying, automatic mold bottom plate resetting, automatic feeding and pressing, automatic forming and pressing, automatic product demolding and automatic film feeding can be achieved, the automation degree is high, operation is stable and reliable, the powder forming effect is good, the production efficiency and the product percent of pass are greatly improved, and the production cost is reduced. And the device is particularly suitable for forming and pressing large-size sheet-shaped products.

Description

Technical Field

[0001] The present invention relates to the technical field of powder molding equipment, and more specifically, to a pressing and forming cyclic production line. Background Art

[0002] Powder molding equipment is a kind of equipment that presses powder into a product of a certain fixed shape (such as a cake shape). It generally includes components such as a frame, an upper die lifting drive device, and an upper pressing block. The upper die lifting drive device can move the upper pressing block downward to press and form the powder. However, existing powder molding equipment is all single machines, and the molds are fixed on the machines. Therefore, existing powder molding equipment cannot achieve the cyclic flow of the molds and cannot form a cyclic production line. Summary of the Invention

[0003] An object of the present invention is to overcome the above-mentioned defects in the prior art and provide a pressing and forming cyclic production line that can achieve a series of automated operations such as automated conveying, automated resetting of the mold bottom plate, automated feeding and pressing of materials, automated forming and pressing, automated product demolding, and automated film covering.

[0004] To achieve the above object, the present invention provides a pressing and forming cyclic production line, including a main workbench, a first conveying mechanism, a mold hook pulling mechanism, a bottom plate pressing mechanism for pressing the bottom plate in the circulating mold in place, a feeding and pressing mechanism for filling powder into the circulating mold and performing the first pressing on the powder, a secondary pressing mechanism for performing the second pressing on the powder in the circulating mold, a first pushing mechanism, a second conveying mechanism, a second pushing mechanism, a third conveying mechanism, a third pushing mechanism, a fourth conveying mechanism, a main press for pressing and forming the powder in the circulating mold, a demolding mechanism for demolding the product after pressing, and a film covering mechanism for covering a layer of film material above and / or below the powder in the circulating mold. The mold hook pulling mechanism, the bottom plate pressing mechanism, the feeding and pressing mechanism, the secondary pressing mechanism, and the first pushing mechanism are arranged in sequence on the tabletop of the main workbench. The first conveying mechanism is arranged on the main workbench and sequentially passes through the mold hook pulling mechanism, the bottom plate pressing mechanism, the feeding and pressing mechanism, and the secondary pressing mechanism. The first conveying mechanism, the second conveying mechanism, the third conveying mechanism, and the fourth conveying mechanism are connected in sequence and combined to form a loop-shaped circulating conveying line. The first pushing mechanism is located between the discharge side of the first conveying mechanism and the feed side of the second conveying mechanism. The second pushing mechanism is located at the discharge end of the second conveying mechanism. The third pushing mechanism is located at the discharge end of the third conveying mechanism. The third pushing mechanism sequentially passes through the main press and the demolding mechanism. The film covering mechanism is located in the middle area of the loop-shaped circulating conveying line.

[0005] Preferably, the first conveying mechanism includes an annular first conveying chain, first conveying sprockets, a first rotary driving device, and a plurality of first conveying push blocks for pushing the transfer molds. There are two first conveying sprockets, which are respectively installed in the main workbench. The first conveying chain is installed between the two first conveying sprockets. The first rotary driving device is connected to one of the first conveying sprockets. The first conveying push blocks are evenly installed on the outer side of the first conveying chain.

[0006] Preferably, the second conveying mechanism and the third conveying mechanism are respectively arranged as belt conveyors.

[0007] Preferably, the fourth conveying mechanism includes a conveying frame, an annular second conveying chain, second conveying sprockets, a second rotary driving device, and a plurality of second conveying push blocks for pushing the transfer molds. The second conveying chain is located in the central mounting hole of the conveying frame. Two second conveying sprockets are respectively installed at both ends of the conveying frame. The second conveying chain is installed between the two second conveying sprockets. The second rotary driving device is connected to one of the second conveying sprockets. The second conveying push blocks are evenly installed on the outer side of the second conveying chain. Elastic positioning blocks are arranged on both sides of the conveying frame at the pressing part of the main press.

[0008] Preferably, the mold hooking and pulling mechanism includes a hooking and pulling translation driving device, a hooking and pulling lifting driving device, a hooking and pulling plate, and a hooking and pulling positioning member for inserting into the positioning hole of the transfer mold. The hooking and pulling translation driving device is connected to the hooking and pulling lifting driving device. The hooking and pulling plate is connected to the hooking and pulling lifting driving device. The hooking and pulling positioning member is installed on both sides of the bottom of the hooking and pulling plate.

[0009] Preferably, the pressing bottom plate mechanism includes a pressing bottom plate bracket, a pressing bottom plate lifting driving device, and a bottom plate pressing block. The pressing bottom plate lifting driving device is installed on the pressing bottom plate bracket. The pressing bottom plate lifting driving device is connected to the bottom plate pressing block.

[0010] Preferably, the loading and pressing mechanism includes a loading hopper, a feeding box, a feeding box translation driving device, a powder stirring device, a loading bottom plate, a primary pressing support, a primary pressing lifting driving device, and a primary pressing plate. The powder stirring device is installed at the rear side of the primary pressing support. The bottom outlet of the loading hopper is connected to the top inlet of the powder stirring device. The feeding box translation driving device is connected to the feeding box, and the feeding box translation driving device can drive the feeding box to move horizontally back and forth on the loading bottom plate, so that the feeding box moves to directly below the powder stirring device, the top inlet of the feeding box is docked with the bottom outlet of the powder stirring device, and the feeding box moves to directly above the transfer mold, the bottom outlet of the feeding box is docked with the inlet of the transfer mold. The primary pressing lifting driving device is installed on the primary pressing support, the primary pressing lifting driving device is connected to the primary pressing plate, and the primary pressing lifting driving device can drive the primary pressing plate to pass through the inside of the feeding box and pre-press the powder in the forming cavity of the transfer mold.

[0011] Preferably, the secondary pressing mechanism includes a secondary pressing support, a secondary pressing lifting driving device, and a secondary pressing plate. The secondary pressing lifting driving device is installed on the secondary pressing support, and the secondary pressing lifting driving device is connected to the secondary pressing plate.

[0012] Preferably, the first pushing mechanism includes a first pushing translation driving device and a first pushing plate. The first pushing translation driving device is connected to the first pushing plate.

[0013] Preferably, the second pushing mechanism includes a second pushing support, a second pushing translation driving device, and a second pushing seat. The second pushing translation driving device is installed on the second pushing support, and the second pushing translation driving device is connected to the second pushing seat.

[0014] Preferably, the third pushing mechanism includes a third pushing translation driving device and a third pushing plate. The third pushing translation driving device is connected to the third pushing plate.

[0015] Preferably, the main press includes a main press frame, a hydraulic pressure lifting driving device, a press lifting seat, and an upper pressing block. The hydraulic pressure lifting driving device is installed at the upper end of the main press frame, the hydraulic pressure lifting driving device is connected to the press lifting seat, and the upper pressing block is installed at the bottom of the press lifting seat.

[0016] Preferably, the demolding mechanism includes a demolding frame, a demolding lifting driving device, a demolding lifting frame, and demolding positioning lifting blocks. The demolding lifting driving device is installed on the demolding frame, the demolding lifting driving device is connected to the demolding lifting frame, and the demolding positioning lifting blocks are installed on both sides of the demolding lifting frame.

[0017] Preferably, the film applying mechanism includes a multi-axis manipulator, a sucker mounting plate, a plurality of suckers, and a film storage machine for storing film materials. The end of the multi-axis manipulator is connected to the suckers through the sucker mounting plate. The film storage machine is located on one side of the multi-axis manipulator. The multi-axis manipulator can drive the suckers to suck the film materials in the film storage cavity of the film storage machine.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The structure layout of the present invention is reasonable. It is provided with a main workbench, a first conveying mechanism, a mold hook pulling mechanism, a pressing bottom plate mechanism, a feeding and pressing mechanism, a secondary pressing mechanism, a first pushing mechanism, a second conveying mechanism, a second pushing mechanism, a third conveying mechanism, a third pushing mechanism, a fourth conveying mechanism, a main press, a demolding mechanism, and a film applying mechanism. On the rectangular loop conveying line composed of four conveying mechanisms, the transfer mold can be sequentially transferred to each mechanism for corresponding operations, realizing a series of automated operations such as automated conveying, automated reset of the mold bottom plate, automated feeding and pressing, automated forming and pressing, automated product demolding, and automated film applying. It has a high degree of automation, stable and reliable operation, good powder forming effect, greatly improves production efficiency and product qualification rate, and is particularly suitable for the forming and pressing of large-sized sheet products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of a pressing and forming loop production line provided by an embodiment of the present invention;

[0022] Figure 2 is a top view of a pressing and forming loop production line provided by an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of each mechanism on the main workbench provided by an embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of a transfer mold provided by an embodiment of the present invention;

[0025] Figure 5 is a partially enlarged view of the structure of the first conveying mechanism provided by an embodiment of the present invention;

[0026] Figure 6It is a schematic structural diagram of the mold pulling mechanism provided by an embodiment of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the pressing bottom plate mechanism provided by an embodiment of the present invention;

[0028] Figure 8 It is a schematic structural diagram of the loading and pressing mechanism provided by an embodiment of the present invention Figure 1 ;

[0029] Figure 9 It is a schematic structural diagram of the loading and pressing mechanism provided by an embodiment of the present invention Figure 2 ;

[0030] Figure 10 It is a schematic structural diagram of the secondary pressing mechanism provided by an embodiment of the present invention;

[0031] Figure 11 It is a schematic structural diagram of the first pushing mechanism provided by an embodiment of the present invention;

[0032] Figure 12 It is a schematic structural diagram of the second conveying mechanism and the second pushing mechanism provided by an embodiment of the present invention;

[0033] Figure 13 It is a schematic structural diagram of the third conveying mechanism and the third pushing mechanism provided by an embodiment of the present invention;

[0034] Figure 14 It is a schematic structural diagram of the fourth conveying mechanism and the demolding mechanism provided by an embodiment of the present invention Figure 1 ;

[0035] Figure 15 It is a schematic structural diagram of the fourth conveying mechanism and the demolding mechanism provided by an embodiment of the present invention Figure 2 ;

[0036] Figure 16 It is a schematic structural diagram of the main press provided by an embodiment of the present invention;

[0037] Figure 17 It is a schematic structural diagram of the film applying mechanism provided by an embodiment of the present invention. Specific embodiments

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer toFigure 1 , Figure 2 and Figure 3 , embodiments of the present invention provide a pressing and forming cyclic production line, including a main workbench 1, a first conveying mechanism 2 for conveying and transferring a mold 16, a mold hook pulling mechanism 3 for pulling the empty transferred mold 16 back to the starting position of the first conveying mechanism 2, a bottom plate pressing mechanism 4 for pressing the bottom plate 161 in the empty transferred mold 16 in place, a feeding and pressing mechanism 5 for filling powder into the transferred mold 16 and performing a first pressing on the powder, a secondary pressing mechanism 6 for performing a second pressing on the powder in the transferred mold 16, a first pushing mechanism 7 for pushing the transferred mold 16 after being pressed by the secondary pressing mechanism 6 to the second conveying mechanism 8, a second conveying mechanism 8 for conveying the transferred mold 16, a second pushing mechanism 9 for transferring and pushing the transferred mold 16 conveyed to the discharging end of the second conveying mechanism 8 to the third conveying mechanism, a third conveying mechanism 10 for conveying the transferred mold 16, a third pushing mechanism 11 for transferring and pushing the transferred mold 16 conveyed to the discharging end of the third conveying mechanism 10 to the fourth conveying mechanism 12, a fourth conveying mechanism 12 for conveying the transferred mold 16, a main press 13 for pressing and forming the powder in the transferred mold 16, a demolding mechanism 14 for demolding the product after pressing, and a film covering mechanism 15 for covering a layer of film material above and / or below the powder in the transferred mold 16. The mold hook pulling mechanism 3, the bottom plate pressing mechanism 4, the feeding and pressing mechanism 5, the secondary pressing mechanism 6, and the first pushing mechanism 7 are arranged in sequence on the tabletop of the main workbench 1. The first conveying mechanism 2 is arranged on the main workbench 1 and sequentially passes through the mold hook pulling mechanism 3, the bottom plate pressing mechanism 4, the feeding and pressing mechanism 5, and the secondary pressing mechanism 6. The first conveying mechanism 2, the second conveying mechanism 8, the third conveying mechanism 10, and the fourth conveying mechanism 12 are sequentially docked and combined to form a loop-shaped cyclic conveying line. The first pushing mechanism 7 is located between the discharging side of the first conveying mechanism 2 and the feeding side of the second conveying mechanism 8. The second pushing mechanism 9 is located at the discharging end of the second conveying mechanism 8. The third pushing mechanism 11 is located at the discharging end of the third conveying mechanism 10. The third pushing mechanism 11 sequentially passes through the main press 13 and the demolding mechanism 14. The film covering mechanism 15 is located in the middle area of the loop-shaped cyclic conveying line.

[0040] The following will describe each component of this embodiment in detail with reference to the accompanying drawings.

[0041] As Figure 4 shown, the transferred mold 16 can be set as a rectangular frame body, with a forming cavity in the middle, a bottom plate 161 at the bottom of the forming cavity, positioning holes 162 respectively arranged at the four corners of the top of the transferred mold 16, and a square positioning groove 163 and a V-shaped positioning groove 164 respectively arranged on both sides in the width direction of the transferred mold 16.

[0042] AsFigure 3 and Figure 5 As shown in Figure 5 , the first conveying mechanism 2 may include an annular first conveying chain 21, first conveying sprockets 22, a first rotary driving device 23, and a plurality of first conveying push blocks 24 for pushing the transfer mold 16. There are two first conveying sprockets 22 which are respectively installed in the main workbench 1. The first conveying chain 21 is installed between the two first conveying sprockets 22. The first rotary driving device 23 is connected to one of the first conveying sprockets 22. The first rotary driving device 23 can drive the first conveying chain 21 to rotate. The first conveying push block 24 can be set in a square shape and is evenly installed on the outer side of the first conveying chain 21. Among them, the first rotary driving device 23 can preferably be set as a motor + speed reducer.

[0043] As Figure 6 shown in Figure 6 , the mold hook pulling mechanism 3 may include a hook pulling translation driving device 31, a hook pulling lifting driving device 32, a hook pulling plate 33, and a hook pulling positioning member 34 for inserting into the positioning hole of the transfer mold 16. The hook pulling translation driving device 31 is connected to the hook pulling lifting driving device 32. The hook pulling plate 33 is connected to the hook pulling lifting driving device 32. The hook pulling positioning member 34 is installed on both sides of the bottom of the hook pulling plate 33. Among them, the hook pulling translation driving device 31 and the hook pulling lifting driving device 32 can preferably be set as cylinders respectively. The hook pulling translation driving device 31 can drive the hook pulling positioning member 34 to move horizontally, and the hook pulling lifting driving device 32 can drive the hook pulling positioning member 34 to move up and down.

[0044] As Figure 7 shown in Figure 7 , the pressing bottom plate mechanism 4 may include a pressing bottom plate bracket 41, a pressing bottom plate lifting driving device 42, and a bottom plate pressing block 43. The pressing bottom plate lifting driving device 42 is installed on the pressing bottom plate bracket 41. The pressing bottom plate lifting driving device 42 is connected to the bottom plate pressing block 43. Among them, the pressing bottom plate lifting driving device 42 can preferably be set as a cylinder.

[0045] The pressing bottom plate lifting driving device 42 can drive the bottom plate pressing block 43 to move downward to press the bottom plate 161 in the transfer mold 16 and press it to the bottom to achieve reset. The bottom plate 161 after demolding needs to be reinstalled to the bottom of the forming cavity of the transfer mold 16.

[0046] As Figure 8 and Figure 9As shown, the feeding and pressing mechanism 5 may include a feeding hopper 51, a feeding box 52, a feeding box translation driving device 53, a powder material stirring device 54, a feeding bottom plate 55, a primary pressing bracket 56, a primary pressing lifting driving device 57 and a primary pressing plate 58. The powder material stirring device 54 is installed on the rear side of the primary pressing bracket 56. The feeding hopper 51 is used to store powder materials. The bottom outlet of the upper hopper 51 is connected to the top inlet of the powder material stirring device 54. The feeding box 52 is configured as a square box body with upper and lower openings. The feeding box translation driving device 53 is connected to the feeding box 52. The feed box translation drive device 53 can drive the feed box 52 to move back and forth horizontally on the loading bottom plate 55, so that the feed box 52 moves to the bottom of the powder stirring device 54, so that the top inlet of the feed box 52 is connected with the bottom outlet of the powder stirring device 54, and the feed box 52 moves to the top of the flow mold 16, so that the bottom outlet of the feed box 52 is connected with the inlet of the flow mold 16. The primary pressing lifting drive device 57 is installed on the primary pressing bracket 56, and the primary pressing lifting drive device 57 is connected to the primary pressing plate 58.

[0047] The feed box translation drive device 53 and the primary press lifting drive device 57 can be preferably configured as cylinders respectively.

[0048] like Figure 9 As shown, the powder stirring device 54 may include a stirring box 541, a stirring motor 542 and a stirring paddle 543. The stirring paddle 543 is rotatably installed inside the stirring box 541, and the stirring motor 542 is installed outside the stirring box 541. The stirring motor 542 is connected to the stirring paddle 543 through a synchronous belt and a synchronous wheel and drives the stirring paddle 543 to rotate.

[0049] like Figure 9 As shown, the top of the feeding box 52 is provided with a feeding closing plate 59 extending horizontally to the rear side, and the feeding closing plate 59 is located below the bottom outlet of the powder stirring device 54. When the feeding box 52 moves forward to feed materials, the feeding closing plate 59 can close the bottom outlet of the powder stirring device 54.

[0050] When powder is loaded, the feed box 52 is just located below the powder stirring device 54, and the powder output from the upper hopper 51 will be stirred by the powder stirring device 54 to make it evenly dispersed, which is conducive to evenly filling the powder into the feed box 52. Then, the feed box translation drive device 53 drives the filled feed box 52 to move forward to just below the primary pressing plate 58 and just above the molding cavity of the flow mold 16. At this time, the powder in the feed box 52 will be filled into the molding cavity of the flow mold 16, and the unloading closing plate 59 on the rear side of the feed box 52 can close the bottom outlet of the powder stirring device 54.

[0051] When the first material pressing is required, the first material pressing lifting drive device 57 can drive the first material pressing plate 58 through the inside of the feeding box 52 and pre-press the powder in the forming cavity of the transfer die 16.

[0052] As Figure 10 shown, the second material pressing mechanism 6 can include a second material pressing support 61, a second material pressing lifting drive device 62 and a second material pressing plate 63. The second material pressing lifting drive device 62 is installed on the second material pressing support 61, and the second material pressing lifting drive device 62 is connected to the second material pressing plate 63. Among them, the second material pressing lifting drive device 62 can preferably be set as a cylinder.

[0053] As Figure 11 shown, the first material pushing mechanism 7 can include a first material pushing translation drive device 71 and a first material pushing plate 72. The first material pushing translation drive device 71 is connected to the first material pushing plate 72, and the first material pushing translation drive device 71 can drive the first material pushing plate 72 to horizontally move in the feeding direction of the second conveying mechanism 8. Among them, the first material pushing translation drive device 71 can preferably be set as a cylinder.

[0054] As Figure 11 and Figure 12 shown, the second conveying mechanism 8 and the third conveying mechanism 10 can preferably be set as common belt conveyors respectively. Among them, limiting strips can be respectively arranged on both sides of the tops of the second conveying mechanism 8 and the third conveying mechanism 10.

[0055] As Figure 12 shown, the second material pushing mechanism 9 can include a second material pushing support 91, a second material pushing translation drive device 92 and a second material pushing seat 93. The second material pushing translation drive device 92 is installed on the second material pushing support 91, and the second material pushing translation drive device 92 is connected to the second material pushing seat 93. The second material pushing translation drive device 92 can drive the second material pushing seat 93 to horizontally move in the feeding direction of the third conveying mechanism 10. Among them, the second material pushing translation drive device 92 can preferably be set as a cylinder or a linear module.

[0056] As Figure 13 shown, the third material pushing mechanism 11 can include a third material pushing translation drive device 111 and a third material pushing plate 112. The third material pushing translation drive device 111 is connected to the third material pushing plate 112, and the third material pushing translation drive device 111 can drive the third material pushing plate 112 to horizontally move in the feeding direction of the second conveying mechanism 8. Among them, the third material pushing translation drive device 111 can preferably be set as a cylinder.

[0057] As Figure 14 and Figure 15As shown in the figure, the fourth conveying mechanism 12 may include a conveying frame 121, an annular second conveying chain 122, second conveying sprockets 123, a second rotation driving device 124, and a plurality of second conveying push blocks 125 for pushing the transfer die 16. The second conveying chain 122 is located in the middle mounting hole of the conveying frame 121. Two second conveying sprockets 123 are respectively installed at both ends of the conveying frame 121. The second conveying chain 122 is installed between the two second conveying sprockets 123. The second rotation driving device 124 is connected to one of the second conveying sprockets 123. The second rotation driving device 124 can drive the second conveying chain 122 to rotate. The second conveying push block 125 can be set in a square shape and is evenly installed on the outer side of the second conveying chain 122. Among them, the second rotation driving device 124 can preferably be set as a motor + reducer.

[0058] Preferably, elastic positioning blocks 126 can be provided on both sides of the conveying frame 12 at the pressing part of the main press. The elastic positioning blocks 126 can be inserted into the V-shaped positioning grooves 164 of the transfer die 16, which is convenient for positioning the transfer die 16 during the powder pressing process.

[0059] As Figure 16 shown in the figure, the main press 13 may include a main press frame 131, an oil pressure lifting driving device 132, a press lifting seat 133, and an upper pressing block 134. The oil pressure lifting driving device 132 is installed at the upper end of the main press frame 131. The oil pressure lifting driving device 132 is connected to the press lifting seat 133. The upper pressing block 134 is installed at the bottom of the press lifting seat 133. Among them, the oil pressure lifting driving device 132 can preferably be set as an oil cylinder. The oil pressure lifting driving device 132 can drive the upper pressing block 134 to move up and down.

[0060] As Figure 14 and Figure 15 shown in the figure, the demolding mechanism 14 may include a demolding frame 141, a demolding lifting driving device 142, a demolding lifting frame 143, and demolding positioning and lifting blocks 144. The demolding lifting driving device 142 is installed on the demolding frame 141. The demolding lifting driving device 142 is connected to the demolding lifting frame 143 and can drive it to move up and down. The demolding positioning and lifting blocks 144 are installed on both sides of the demolding lifting frame 143. Among them, the demolding lifting driving device 142 can preferably be set as a cylinder.

[0061] When the transfer die 16 is conveyed to the demolding station, the demolding positioning and lifting blocks 144 can be inserted into the square positioning grooves 163 of the transfer die 16. The demolding lifting driving device 142 can drive the transfer die 16 to move up and down, while the pressed product and the bottom plate 161 remain on the conveying frame 121.

[0062] As Figure 17As shown in the figure, the upper film mechanism 15 may include a multi-axis manipulator 151, a suction cup mounting plate 152, a plurality of suction cups 153, and a film storage machine 154 for storing film materials. The end of the multi-axis manipulator 151 is connected to the suction cups 153 through the suction cup mounting plate 152. The film storage machine 154 is located on one side of the multi-axis manipulator 151. The multi-axis manipulator 151 can drive the suction cups 153 to suck the film material (such as PP film) in the film storage cavity of the film storage machine 154 into the transfer mold at the station of the feeding and pressing mechanism 5.

[0063] As Figure 17 As shown in the figure, the film storage machine 154 may include a film storage rack 1541, a film storage box 1542, a film material pushing plate 1543, and a film material pushing cylinder 1544. The film storage box 1542 is installed on the top of the film storage rack 1541. One side of the film storage box 1542 is provided with a suction cup inlet communicating with its film storage cavity. The film material pushing cylinder 1544 is horizontally installed on the other side of the film storage box 1542. The film material pushing plate 1543 is located in the film storage cavity of the film storage box 1542 and is connected to the film material pushing cylinder 1544. The film material pushing plate 1543 can push the film materials stored in the film storage box 1542 to one side, which is beneficial for all the film materials to be close together and keep in a vertical state, facilitating the suction of the film materials by the suction cups.

[0064] The working principle of the present invention is as follows:

[0065] The first conveying mechanism 2 can sequentially convey the transfer molds starting from the station of the mold hook pulling mechanism 3 to the pressing bottom plate mechanism 4, the feeding and pressing mechanism 5, the secondary pressing mechanism 6, and the first pushing mechanism 7. The pressing bottom plate mechanism 4 can press the bottom plate 161 in the empty transfer mold 16 into place. The feeding and pressing mechanism 5 can fill the powder into the transfer mold 16 and perform the first pressing on the powder. The secondary pressing mechanism 6 can perform the second pressing on the powder in the transfer mold 16. The first pushing mechanism 7 can push the transfer mold 16 to the second conveying mechanism 8. The second pushing mechanism 9 can transfer and push the transfer mold 16 conveyed to the discharge end of the second conveying mechanism 8 to the third conveying mechanism 10. The third pushing mechanism 11 can transfer and push the transfer mold 16 conveyed to the discharge end of the third conveying mechanism 10 to the fourth conveying mechanism 12. The fourth conveying mechanism 12 can sequentially convey the transfer mold 16 to the main press 13 and the demolding mechanism 14. The main press 13 can press and mold the powder in the transfer mold 16. The demolding mechanism 14 can demold the pressed product. The demolded product can be taken away by manual or other manipulators, and the bottom plate can also be placed back into the molding cavity of the transfer mold 16 by manual or other manipulators. Finally, the mold hook pulling mechanism 3 pulls the empty transfer mold 16 back to the starting position, and this cycle continues.

[0066] In summary, the structural layout of the present invention is reasonable. On the square-loop circulating conveyor line composed of four conveying mechanisms, the transfer mold can be transferred to each mechanism in sequence for corresponding operations, enabling a series of automated operations such as automated conveying, automated reset of the mold bottom plate, automated feeding and pressing, automated forming and pressing, automated product demolding, and automated film coating. It has a high degree of automation, stable and reliable operation, good powder forming effect, greatly improves production efficiency and product qualification rate, and is particularly suitable for the forming and pressing of large-sized sheet products.

[0067] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A compression molding cycle production line, characterized in that: The present invention comprises a main working table, a first conveying mechanism, a mold hooking and pulling mechanism, a bottom plate pressing mechanism for pressing the bottom plate in the rotating mold into place, a feeding and pressing mechanism for filling powder into the rotating mold and pressing the powder for the first time, a secondary pressing mechanism for pressing the powder in the rotating mold for the second time, a first pushing mechanism, a second conveying mechanism, a second pushing mechanism, a third conveying mechanism, a third pushing mechanism, a fourth conveying mechanism, a main press for pressing the powder in the rotating mold, a demolding mechanism for demolding the pressed product, and a film covering mechanism for covering a layer of film material above and / or below the powder in the rotating mold, the mold hooking and pulling mechanism, the bottom plate pressing mechanism, the feeding and pressing mechanism, the secondary pressing mechanism The mechanism and the first pushing mechanism are arranged on the table top of the main workbench in sequence; the first conveying mechanism is arranged on the main workbench and passes through the mold hook pulling mechanism, the bottom plate pressing mechanism, the feeding pressing mechanism and the secondary pressing mechanism in sequence; the first conveying mechanism, the second conveying mechanism, the third conveying mechanism and the fourth conveying mechanism are connected in sequence and combined to form a U-shaped circulating conveying line; the first pushing mechanism is located between the discharge side of the first conveying mechanism and the feed side of the second conveying mechanism; the second pushing mechanism is located at the discharge end of the second conveying mechanism; the third pushing mechanism is located at the discharge end of the third conveying mechanism; the third pushing mechanism passes through the main press and the demoulding mechanism in sequence; and the film-applying mechanism is located in the middle area of ​​the U-shaped circulating conveying line.

2. A press forming cycle production line according to claim 1, characterized in that: The first conveying mechanism includes a first annular conveying chain, a first conveying sprocket, a first rotating driving device and a plurality of first conveying push blocks for pushing the flow mold, the first conveying sprocket is provided with two and respectively installed in the main workbench, the first conveying chain is installed between the two first conveying sprockets, the first rotating driving device is connected to one of the first conveying sprockets, and the first conveying push blocks are evenly installed on the outside of the first conveying chain; The second conveying mechanism and the third conveying mechanism are respectively configured as belt conveyors; The fourth conveying mechanism includes a conveying frame, a ring-shaped second conveying chain, a second conveying sprocket, a second rotating driving device and a plurality of second conveying push blocks for pushing the rotating mold, the second conveying chain is located in the middle mounting hole of the conveying frame, the two second conveying sprockets are respectively mounted at the two ends of the conveying frame, the second conveying chain is mounted between the two second conveying sprockets, the second rotating driving device is connected to one of the second conveying sprockets, the second conveying push blocks are evenly mounted on the outside of the second conveying chain, and elastic positioning blocks located at the pressing part of the main press are provided on both sides of the conveying frame.

3. A press forming cycle production line according to claim 1, characterized in that: The mold hook-pull mechanism includes a hook-pull translation drive device, a hook-pull lifting drive device, a hook-pull plate and a hook-pull positioning piece for inserting into the positioning hole of the flow mold, the hook-pull translation drive device is connected to the hook-pull lifting drive device, the hook-pull plate is connected to the hook-pull lifting drive device, and the hook-pull positioning piece is installed on both sides of the bottom of the hook-pull plate.

4. A press forming cycle production line according to claim 1, characterized in that: The bottom plate pressing mechanism comprises a bottom plate pressing bracket, a bottom plate pressing lifting drive device and a bottom plate pressing block. The bottom plate pressing lifting drive device is installed on the bottom plate pressing bracket, and the bottom plate pressing lifting drive device is connected to the bottom plate pressing block.

5. The press forming cycle production line according to claim 1, characterized in that: The feeding and pressing mechanism comprises a feeding hopper, a feeding box, a feeding box translation driving device, a powder stirring device, a feeding bottom plate, a primary pressing bracket, a primary pressing lifting driving device and a primary pressing plate, wherein the powder stirring device is installed on the rear side of the primary pressing bracket, the bottom outlet of the feeding hopper is connected with the top inlet of the powder stirring device, the feeding box translation driving device is connected with the feeding box, the feeding box translation driving device can drive the feeding box to move back and forth laterally on the feeding bottom plate, so that the feeding box moves to the bottom of the powder stirring device, so that the top inlet of the feeding box is connected with the bottom outlet of the powder stirring device, and the feeding box moves to the top of the flow mold, so that the bottom outlet of the feeding box is connected with the inlet of the flow mold, the primary pressing lifting driving device is installed on the primary pressing bracket, the primary pressing lifting driving device is connected with the primary pressing plate, and the primary pressing lifting driving device can drive the primary pressing plate to pass through the interior of the feeding box and pre-press the powder in the molding cavity of the flow mold.

6. The press molding cycle production line according to claim 1, characterized in that: The secondary material pressing mechanism comprises a secondary material pressing support, a secondary material pressing lifting drive device and a secondary material pressing plate. The secondary material pressing lifting drive device is installed on the secondary material pressing support, and the secondary material pressing lifting drive device is connected to the secondary material pressing plate.

7. The press molding cycle production line according to claim 1, characterized in that: The first pushing mechanism comprises a first pushing translation driving device and a first pushing plate, and the first pushing translation driving device is connected to the first pushing plate; The second material pushing mechanism comprises a second material pushing bracket, a second material pushing translation driving device and a second material pushing seat, wherein the second material pushing translation driving device is mounted on the second material pushing bracket, and the second material pushing translation driving device is connected to the second material pushing seat; The third pushing mechanism comprises a third pushing translation driving device and a third pushing plate, and the third pushing translation driving device is connected to the third pushing plate.

8. The press molding cycle production line according to claim 1, characterized in that: The main press includes a main press frame, a hydraulic lifting drive device, a press lifting seat and an upper pressing block. The hydraulic lifting drive device is installed at the upper end of the main press frame, the hydraulic lifting drive device is connected to the press lifting seat, and the upper pressing block is installed at the bottom of the press lifting seat.

9. The press forming cycle production line according to claim 1, characterized in that: The demoulding mechanism includes a demoulding frame, a demoulding lifting drive device, a demoulding lifting frame and a demoulding positioning lifting block. The demoulding lifting drive device is installed on the demoulding frame, the demoulding lifting drive device is connected to the demoulding lifting frame, and the demoulding positioning lifting block is installed on both sides of the demoulding lifting frame.

10. The press forming cycle production line according to claim 1, characterized in that: The film loading mechanism includes a multi-axis manipulator, a suction cup mounting plate, a plurality of suction cups and a film storage machine for storing film materials. The end of the multi-axis manipulator is connected to the suction cup through the suction cup mounting plate. The film storage machine is located on one side of the multi-axis manipulator. The multi-axis manipulator can drive the suction cup to absorb the film material in the film storage cavity of the film storage machine.

Images