CN115122574B

CN115122574B - Injection molding device and method for plastic product cover spoon

Info

Publication number: CN115122574B
Application number: CN202210960059.XA
Authority: CN
Inventors: 穆明辉
Original assignee: Shijiazhuang Yuanxin Technology Co ltd
Current assignee: Shijiazhuang Yuanxin Technology Co ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2023-04-28
Anticipated expiration: 2042-08-11
Also published as: CN115122574A

Abstract

The invention relates to injection molding equipment, in particular to a cover spoon injection molding device and method for plastic products. The technical problems are as follows: the device and the method for injection molding the plastic product cover spoon can realize double-shot injection molding of the cover spoon only through simple operation. The invention provides a cover spoon injection molding device and method for plastic products, comprising a first injection molding machine, a second injection molding machine and injection molding modules, wherein the first injection molding machine and the second injection molding machine are distributed in an L shape, and the injection molding modules for molding the cover spoon are arranged between discharge holes of the first injection molding machine and the second injection molding machine. When the double-color injection molding is carried out, the double-color injection molding of the cover spoon can be realized by only adjusting the upper partition plate and the lower partition plate, the operation flow is less, the operation is simpler, the efficiency in production can be improved, and the time cost in production is reduced.

Description

Injection molding device and method for plastic product cover spoon

Technical Field

The invention relates to injection molding equipment, in particular to a cover spoon injection molding device and method for plastic products.

Background

The lid spoon is in the same place lid part and spoon part combination of a container, in the in-process of using, only need the operation lid can drive the ladle and scoop the article in the container, and the operation is more convenient, and the in-process of lid spoon in production, its lid and ladle need different materials or different colours hot melt plastics respectively carry out injection moulding, promptly, carry out injection moulding to lid spoon through the mode of bicolor injection moulding processing.

When carrying out double-shot molding, current injection molding machine need carry out operation such as first injection molding, open the mould, take out the runner, mould is rotatory, the compound die, secondary injection molding, open the mould, ejecting injection molding, upset mould in proper order, just can accomplish double-shot molding processing, when the operation, need repeatedly through several flows, just can accomplish double-shot molding processing, the operation flow is too much, leads to the operation process comparatively loaded down with trivial details, influences the efficiency of material when production, increases the time cost in the production process.

Therefore, there is a need to design a device and a method for injection molding a plastic product cover spoon, which can realize double-color injection molding of the cover spoon only through simple operation, have less operation flow and simpler operation, can improve the efficiency during production and reduce the time cost in the production process.

Disclosure of Invention

In order to overcome the defects that the existing mode needs a plurality of processes during injection molding, the operation process is complex, and the efficiency of material production is affected, the technical problems are as follows: the device and the method for injection molding the plastic product cover spoon can realize double-shot injection molding of the cover spoon only through simple operation.

The technical scheme of the invention is as follows: the utility model provides a plastic products is with lid spoon injection molding device, including first injection molding machine, the second injection molding machine, supporting seat and injection molding module, first injection molding machine and second injection molding machine are L shape and distribute, be provided with between the discharge gate of first injection molding machine and second injection molding machine and be used for the fashioned module of moulding plastics to lid spoon, the module bottom of moulding plastics is connected with the supporting seat, still including locking mechanism, design subassembly and separating mechanism, be provided with locking mechanism on the supporting seat, locking mechanism is used for controlling the module of moulding plastics and opens and close, so as to take out injection molding's lid spoon, be provided with in the module of moulding plastics and be used for carrying out the design subassembly that fills to its inner chamber and be used for carrying out the separating mechanism of two kinds of different hot melt plastics.

Further, the die assembly mechanism comprises a first electric sliding rail and a guide block, the first electric sliding rail is arranged on the upper portion of the supporting seat, and the guide block is arranged on the first electric sliding rail.

Further, the injection molding module is divided into an upper module and a lower module, the upper module is rotationally connected with the guide block, the first electric sliding rail is used for pulling the upper module to open the injection molding module through the guide block, the lower module is connected with the supporting seat, the upper module and the lower module are all spaced apart, the positions of the upper module and the lower module are in one-to-one correspondence, and the inner corresponding cavities of the upper module and the lower module form an injection molding cavity when being connected so as to be used for forming a cover spoon.

Further, the shaping assembly comprises limiting plates, first elastic pieces, pressing plates and extrusion rods, wherein the limiting plates are connected in the upper die set and the lower die set in a sliding mode, the limiting plates are used for filling the injection molding cavity to assist in cover spoon molding, the first elastic pieces are connected between the two limiting plates and the upper die set and the lower die set respectively, the extrusion rods used for extruding the limiting plates to move are connected on one sides, close to the limiting plates, of the lower die set and the upper die set in a sliding mode, of the lower die set, the pressing plates are connected on one extrusion rod, and the pressing plates abut against the other extrusion rod.

Further, when the two limiting plates are in contact with each other, round holes for the hot melt plastic to pass through are formed at the connecting positions, and the number of the round holes is consistent with that of the upper cavities of the upper modules.

Further, the separation mechanism comprises a second electric sliding rail, a bottom separation plate and an upper separation plate, the second electric sliding rail is arranged at the bottom of the lower module, the bottom separation plate is arranged on the second electric sliding rail, the upper separation plate is connected with the upper separation plate in a sliding mode in a limiting plate above the second electric sliding rail, the number of the upper separation plates is consistent with the number of round holes, the upper separation plate is used for blocking the round holes so as to separate an injection molding cavity, the bottom separation plate penetrates through the lower module, and semicircular holes are formed in opposite ends of the bottom separation plate and the upper separation plate.

Further, the steering mechanism comprises a rack and a gear, the position, close to the supporting seat, of the upper module is connected with the gear, the upper portion of the supporting seat is connected with the rack, and the rack is located on the moving track of the gear.

Further, still including liftout mechanism, liftout mechanism is including baffle, extrusion frame, extrusion piece and second elastic component, and the supporting seat top is connected with the baffle, and it is connected with extrusion frame to go up the slidingtype on the module, and the baffle is used for blocking extrusion frame, and extrusion frame bottom even interval is connected with the extrusion piece that quantity is unanimous with round hole quantity, is connected with the second elastic component between extrusion piece and the last module.

Further, still including electro-magnet and third elastic component, the clamp plate is iron, and the electro-magnet is installed to the position that lower module is close to the extrusion pole, and the electro-magnet is used for holding the clamp plate and removes in order to drive the extrusion pole, is connected with the third elastic component between two extrusion poles and last module and the lower module respectively.

A plastic product is with lid spoon injection moulding method:

s1, respectively adding two hot melt plastics with different materials or different colors into a first injection molding machine and a second injection molding machine;

s2, adding hot melt plastic into an injection molding module through a first injection molding machine and a second injection molding machine;

s3, forming the hot melt plastic in an injection molding module;

s4, separating an upper module and a lower module of the injection molding module;

s5, taking out the formed cover spoon.

The beneficial effects are as follows: 1. when the cover spoon is subjected to injection molding, the upper separation plate can be used for blocking two injection molding parts, so that hot melt plastics with different colors or different materials are prevented from being mixed together, after preliminary molding, the two injection molding parts can be communicated, at the moment, the hot melt plastics are preliminary molded, the fluidity is reduced, and the two injection molding parts are slowly and fluidly adhered to form the cover spoon at the position close to each other, so that the effect of double-color injection molding is realized.

2. When the double-color injection molding is carried out, the double-color injection molding of the cover spoon can be realized by only adjusting the upper partition plate and the lower partition plate, the operation flow is less, the operation is simpler, the efficiency in production can be improved, and the time cost in production is reduced.

3. According to the invention, after the cover spoon is formed, the upper module can be driven to rotate by the gear and the rack, and the formed cover spoon can be pushed out by the extrusion block, so that the technical effect of automatically pushing out the formed cover spoon is realized.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a schematic view of a partial perspective structure of the present invention.

Fig. 4 is a schematic perspective view of the upper module of the present invention.

Fig. 5 is a schematic perspective view of the clamping mechanism of the present invention.

Fig. 6 is a schematic perspective view of the shaping assembly of the present invention.

FIG. 7 is a schematic diagram showing the connection between the partition mechanism and the lower module.

Fig. 8 is a schematic perspective view of a partition mechanism according to the present invention.

Fig. 9 is an exploded view of the spacing plate and separator mechanism of the present invention, with the spacing plate in cross-section.

Fig. 10 is a schematic perspective view of the steering mechanism of the present invention.

FIG. 11 is a schematic perspective view of the injection molding module and steering mechanism of the present invention after operation.

Fig. 12 is a schematic diagram of the connection relationship between the upper module and the ejector mechanism according to the present invention.

Fig. 13 is a schematic perspective view of a material ejection mechanism according to the present invention.

Fig. 14 is a schematic perspective view of an electromagnet and a third elastic member according to the present invention.

In the reference numerals: the injection molding machine comprises a first injection molding machine, a second injection molding machine, a 3 support seat, a 4 injection molding module, a 41 lower module, a 42 upper module, a 5 clamping mechanism, a 51 first electric sliding rail, a 52 guide block, a 6 shaping assembly, a 61 limiting plate, a 62 first elastic piece, a 63 extrusion rod, a 64 pressing plate, a 7 separation mechanism, a 71 second electric sliding rail, a 72 lower separation plate, a 73 upper separation plate, a 8 steering mechanism, a 81 rack, a 82 gear, a 9 ejection mechanism, a 91 baffle, a 92 extrusion frame, a 93 extrusion block, a 94 second elastic piece, a 10 electromagnet and a 11 third elastic piece.

Detailed Description

The following describes in detail the preferred embodiments of the present invention with reference to the accompanying drawings.

Example 1

The utility model provides a plastic products is with lid spoon injection molding device, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9 and fig. 14, including first injection molding machine 1, second injection molding machine 2, supporting seat 3, injection molding die set 4, clamping mechanism 5, shaping subassembly 6 and separating mechanism 7, first injection molding machine 1 and second injection molding machine 2 are L shape distribution, first injection molding machine 1 and second injection molding machine 2 are used for carrying out the injection molding, be provided with the injection molding die set 4 that is used for lid spoon shaping between the discharge gate of first injection molding machine 1 and second injection molding machine 2, injection molding die set 4 bottom is connected with supporting seat 3, be provided with clamping mechanism 5 on the supporting seat 3, clamping mechanism 5 is used for opening and closing injection molding die set 4, so as to take out the lid of injection molding, be provided with in the injection molding die set 4 and be used for carrying out the shaping subassembly 6 and be used for carrying out separating mechanism 7 of two kinds of different colours hot melt plastics to separate.

As shown in fig. 5, the clamping mechanism 5 includes a first electric slide rail 51 and a guide block 52, the first electric slide rail 51 is mounted on the upper portion of the support base 3, and the guide block 52 is mounted on the first electric slide rail 51.

As shown in fig. 3-6, the injection molding module 4 is divided into an upper module 42 and a lower module 41, the upper module 42 is rotatably connected with a guide block 52, so that the first electric sliding rail 51 pulls the upper module 42 through the guide block 52 to open the injection molding module 4, the lower module 41 is connected with the supporting seat 3, three cavities are spaced apart on the upper module 42 and the lower module 41, the positions of the cavities on the upper module 42 and the lower module 41 are in one-to-one correspondence, and the cavities corresponding to the inner parts of the upper module 42 and the lower module 41 form an injection molding cavity when being connected, so as to be used for forming a cover spoon.

As shown in fig. 6 and 14, the shaping assembly 6 includes a limiting plate 61, a first elastic member 62, a pressing plate 64 and an extrusion rod 63, wherein the limiting plate 61 is slidably connected in the upper module 42 and the lower module 41, the limiting plate 61 is used for blocking an injection cavity to assist in ladle molding, the first elastic member 62 is connected between the two limiting plates 61 and the upper module 42 and the lower module 41, the extrusion rod 63 for extruding the movement of the limiting plate 61 is slidably connected on the right side of the lower module 41 and the right side of the upper module 42, the pressing plate 64 is connected on the extrusion rod 63 below, the pressing plate 64 abuts against the extrusion rod 63 above, when the two limiting plates 61 are in contact with each other, hot melt plastics for preliminary molding pass through, so that round holes for ladle molding are formed in the connection positions, and the number of round holes is three.

As shown in fig. 7-9, the partition mechanism 7 includes a second electric sliding rail 71, a bottom partition plate 72 and an upper partition plate 73, the bottom of the lower module 41 is provided with the second electric sliding rail 71, the second electric sliding rail 71 is provided with the bottom partition plate 72, three upper partition plates 73 are uniformly and slidingly connected in the upper limit plate 61 at intervals, the upper partition plates 73 are used for blocking round holes to separate injection molding cavities, the bottom partition plate 72 penetrates through the lower module 41, and opposite ends of the bottom partition plate 72 and the upper partition plate 73 are provided with semicircular holes.

When the injection molding device is needed to be used, two hot-melt plastics with different colors are respectively added into the first injection molding machine 1 and the second injection molding machine 2, the pressing plate 64 is pulled to drive the two pressing rods 63 to move leftwards, the pressing rods 63 press the limiting plates 61 to move backwards so that a cover shape is formed between the limiting plates 61 and the injection molding cavity, the other part of the injection molding cavity forms a spoon shape, the first elastic piece 62 is stretched, then two hot-melt plastics with different colors are added into the injection molding module 4 through the first injection molding machine 1 and the second injection molding machine 2, the hot-melt plastics added by the first injection molding machine 1 are added into the cover shape part, and the hot-melt plastics added by the second injection molding machine 2 are added into the spoon shape part. When the lower die set 41 and the upper die set 42 are closed, the upper separation plate 73 is inserted into the limiting plate 61 below, the upper end of the lower separation plate 72 is contacted with the lower end of the upper separation plate 73, two semicircular holes in the lower separation plate 72 and the upper separation plate 73 are closed to form complete circular holes, the upper separation plate 73 blocks the circular holes, two parts of hot melt plastics are not communicated, so that two different colors of hot melt plastics are respectively formed in the cover-shaped part and the spoon-shaped part of the cavity, after the cavities are filled with the hot melt plastics, the second electric slide rail 71 is controlled to drive the lower separation plate 72 to move upwards, the lower separation plate 72 pushes the upper separation plate 73 to move upwards, the circular holes formed by the lower separation plate 72 and the upper separation plate 73 correspond to the circular holes, at the moment, the plastics formed in the cavity inner cover-shaped part can be fused with the circular holes, so as to finish the forming of the cover spoon, after the cover spoon is completely formed, the pressing plate 64 is pulled to drive the extrusion rod 63 to reset, the lower limiting plate 61 is reset under the action of the first elastic piece 62 to not to block the cover, the second electric slide rail 71 drives the lower separation plate 72 to reset, the lower separation plate 72 to reset the upper separation plate 72 to move upwards, and then the upper die set 42 is driven by the electric slide rail 72 to move upwards, and the upper die set 42 is driven to separate the upper die set 42 from the upper die set 42 to move upwards, and the upper die set 42 can be formed, and then the upper die set 42 can be moved downwards and the die set is separated.

As shown in fig. 3, 10 and 11, the steering device further comprises a steering mechanism 8, the steering mechanism 8 comprises a rack 81 and a gear 82, the right side of the upper module 42 is connected with the gear 82, the upper portion of the supporting seat 3 is connected with the rack 81, and the rack 81 is located on the moving track of the gear 82.

When the upper module 42 is driven to move upwards by the first electric sliding rail 51 through the guide block 52, the upper module 42 drives the gear 82 to move upwards, the gear 82 is meshed with the rack 81 and rotates when moving upwards, the gear 82 rotates to drive the upper module 42 to rotate, and the upper module 42 rotates to enable the position with the cover spoon at the bottom to incline, so that the cover spoon can be taken out conveniently.

As shown in fig. 3, 12 and 13, the device further comprises a material ejection mechanism 9, the material ejection mechanism 9 comprises a baffle 91, an extrusion frame 92, extrusion blocks 93 and a second elastic piece 94, the top of the supporting seat 3 is connected with the baffle 91, the upper die set 42 is connected with the extrusion frame 92 in a sliding manner, the baffle 91 is used for blocking the extrusion frame 92, three extrusion blocks 93 are uniformly and alternately connected to the bottom of the extrusion frame 92, and the second elastic piece 94 is connected between the extrusion blocks 93 and the upper die set 42.

The upper die set 42 drives the extrusion frame 92, the extrusion block 93 and the second elastic piece 94 to move together when moving, when the extrusion frame 92 moves to be in contact with the baffle 91, the extrusion frame 92 does not move any more, the extrusion block 93 and the second elastic piece 94 do not move any more, at this time, the upper die set 42 continues to move to drive the formed ladle to move, and because the extrusion frame 92, the extrusion block 93 and the second elastic piece 94 do not move, at this time, the extrusion block 93 can push out the formed ladle, so that the ladle is taken out conveniently.

As shown in fig. 14, the device further includes an electromagnet 10 and a third elastic member 11, the pressing plate 64 is made of iron, the electromagnet 10 is installed at the upper right side of the lower module 41, the electromagnet 10 is used for sucking the pressing plate 64 to drive the pressing rods 63 to move, and the third elastic member 11 is connected between the two pressing rods 63 and the upper module 42 and the lower module 41 respectively.

When the extrusion rod 63 needs to be moved, the electromagnet 10 can be started, the electromagnet 10 generates suction to attract the pressing plate 64 to move leftwards, so that the two extrusion rods 63 are driven to move leftwards together, the third elastic piece 11 is compressed, when the extrusion rod 63 needs to be reset, the electromagnet 10 is closed, the extrusion rod 63 is reset under the action of the third elastic piece 11, and the movement of the extrusion rod 63 is conveniently controlled.

Example 2

On the basis of the embodiment 1, as shown in fig. 1-9, a method for injection molding a plastic product by using a ladle comprises the following steps:

s1, respectively adding two hot melt plastics with different materials or different colors into a first injection molding machine 1 and a second injection molding machine 2;

s2, hot melt plastics are added into an injection molding module 4 through a first injection molding machine 1 and a second injection molding machine 2;

s3, forming the hot melt plastic in the injection molding module 4;

s4, separating the upper module 42 and the lower module 41 of the injection module 4;

s5, taking out the formed cover spoon.

The foregoing has outlined rather broadly the more detailed description of the present application, wherein specific examples have been provided to illustrate the principles and embodiments of the present application, the description of the examples being provided solely to assist in the understanding of the method of the present application and the core concepts thereof; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims

1. The utility model provides a plastic products is with lid spoon injection molding device, including first injection molding machine (1), second injection molding machine (2), supporting seat (3) and injection molding module (4), first injection molding machine (1) and second injection molding machine (2) are L shape distribution, be provided with between the discharge gate of first injection molding machine (1) and second injection molding machine (2) and be used for lid spoon fashioned injection molding module (4), injection molding module (4) bottom is connected with supporting seat (3), a serial communication port, still include compound die mechanism (5), design subassembly (6) and separating mechanism (7), be provided with compound die mechanism (5) on supporting seat (3), compound die mechanism (5) are used for controlling injection molding module (4) and are opened and closed, so as to take out injection molding's lid spoon, be provided with in injection molding module (4) and be used for carrying out the design subassembly (6) that pack to its inner chamber and be used for separating mechanism (7) of two kinds of different hot melt plastics; the mold closing mechanism (5) comprises a first electric slide rail (51) and a guide block (52), the first electric slide rail (51) is arranged at the upper part of the supporting seat (3), and the guide block (52) is arranged on the first electric slide rail (51); the injection molding module (4) is divided into an upper module (42) and a lower module (41), the upper module (42) is rotationally connected with the guide block (52) so that the first electric sliding rail (51) pulls the upper module (42) to open the injection molding module (4) through the guide block (52), the lower module (41) is connected with the supporting seat (3), cavities are formed in the upper module (42) and the lower module (41) at intervals, the positions of the cavities on the upper module (42) and the lower module (41) are in one-to-one correspondence, and the corresponding cavities in the upper module (42) and the lower module (41) form an injection molding cavity when being connected with each other so as to be used for forming a cover spoon; the shaping assembly (6) comprises a limiting plate (61), a first elastic piece (62), a pressing plate (64) and extrusion rods (63), wherein the limiting plate (61) is connected in each of the upper die set (42) and the lower die set (41) in a sliding mode, the limiting plate (61) is used for filling an injection cavity to assist in cover spoon forming, the first elastic piece (62) is connected between the two limiting plates (61) and the upper die set (42) and the lower die set (41) respectively, the pressing rods (63) used for extruding the movement of the limiting plate (61) are connected on one side, close to the limiting plate (61), of the lower die set (41) and the upper die set (42) in a sliding mode, the pressing plate (64) is connected on one extrusion rod (63), and the pressing plate (64) props against the other extrusion rod (63); when the two limiting plates (61) are in contact with each other, round holes for passing through the hot melt plastic are formed at the joint positions, and the number of the round holes is consistent with that of the upper cavities of the upper module (42); the separation mechanism (7) comprises a second electric sliding rail (71), a bottom separation plate (72) and an upper separation plate (73), the second electric sliding rail (71) is arranged at the bottom of the lower module (41), the bottom separation plate (72) is arranged on the second electric sliding rail (71), the upper separation plate (73) is connected in the upper limit plate (61) in a sliding mode, the number of the upper separation plates (73) is consistent with that of round holes, the upper separation plate (73) is used for blocking the round holes so as to separate an injection molding cavity, the bottom separation plate (72) penetrates through the lower module (41), and semicircular holes are formed in opposite ends of the bottom separation plate (72) and the upper separation plate (73); the steering mechanism (8) comprises a rack (81) and a gear (82), the gear (82) is connected to the position, close to the supporting seat (3), of the upper module (42), the rack (81) is connected to the upper portion of the supporting seat (3), and the rack (81) is located on the moving track of the gear (82); still including liftout mechanism (9), liftout mechanism (9) are including baffle (91), extrusion frame (92), extrusion piece (93) and second elastic component (94), and supporting seat (3) top is connected with baffle (91), and go up sliding connection on module (42) has extrusion frame (92), and baffle (91) are used for blocking extrusion frame (92), and extrusion frame (92) bottom even interval is connected with extrusion piece (93) that quantity is unanimous with round hole quantity, is connected with second elastic component (94) between extrusion piece (93) and last module (42).

2. The plastic product ladle cover injection molding device according to claim 1, further comprising an electromagnet (10) and a third elastic piece (11), wherein the pressing plate (64) is made of iron, the electromagnet (10) is installed at a position, close to the pressing rod (63), of the lower die set (41), the electromagnet (10) is used for sucking the pressing plate (64) to drive the pressing rod (63) to move, and the third elastic piece (11) is connected between the two pressing rods (63) and the upper die set (42) and the lower die set (41) respectively.

3. The method for injection molding a plastic product ladle of a plastic product ladle injection molding apparatus according to any one of claims 1 to 2, characterized in that the method steps are as follows:

s1, respectively adding two hot melt plastics with different materials or different colors into a first injection molding machine (1) and a second injection molding machine (2);

s2, adding hot melt plastic into an injection molding module (4) through a first injection molding machine (1) and a second injection molding machine (2);

s3, forming the hot melt plastic in an injection molding module (4);

s4, separating an upper module (42) and a lower module (41) of the injection molding module (4);

s5, taking out the formed cover spoon.