CN115122574A

CN115122574A - Cover and spoon injection molding device and method for plastic products

Info

Publication number: CN115122574A
Application number: CN202210960059.XA
Authority: CN
Inventors: 穆明辉
Original assignee: Shijiazhuang Yuanxin Plastic Manufacturing Co ltd
Current assignee: Shijiazhuang Yuanxin Plastic Manufacturing Co ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-09-30
Anticipated expiration: 2042-08-11
Also published as: CN115122574B

Abstract

The invention relates to injection molding equipment, in particular to a cover and spoon injection molding device and method for plastic products. The technical problem is as follows: the cover spoon injection molding device and the method for the plastic products can realize double-color injection molding of the cover spoon only through simple operation. The invention provides a device and a method for injection molding of a cover spoon for a plastic product. When the double-color injection molding is carried out, the double-color injection molding of the cover spoon can be realized only by adjusting the upper partition plate and the lower partition plate, the operation flow is less, the operation is simpler, the efficiency during production can be improved, and the time cost during production can be reduced.

Description

Cover and spoon injection molding device and method for plastic products

Technical Field

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

Background

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

When current injection molding machine is carrying out double-colored injection moulding, need carry out in proper order and mould plastics for the first time, open the mould, take out the runner, the mould is rotatory, the compound die, the secondary is moulded plastics, open the mould, ejecting injection moulding thing, operations such as upset mould, just can accomplish double-colored injection moulding, when the operation, need pass through the several flow repeatedly, the double-colored injection moulding that could accomplish, the operation flow is too much, lead to operation process comparatively loaded down with trivial details, influence the efficiency of material when production, increase the time cost in the production process.

Therefore, the cover spoon injection molding device and the method for the plastic products need to be designed, the cover spoon can be subjected to double-color injection molding processing only through simple operation, the operation process is few, the operation is simpler, the efficiency during production can be improved, and the time cost in the production process is reduced.

Disclosure of Invention

In order to overcome the defects that the prior mode needs a plurality of processes when in injection molding, the operation process is complicated, and the efficiency of the material production is influenced, the technical problem is as follows: the cover spoon injection molding device and the method for the plastic products can realize double-color 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 are with lid spoon injection moulding device, including first injection molding machine, the second injection molding machine, supporting seat and the module of moulding plastics, 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 the lid spoon, the module bottom of moulding plastics is connected with the supporting seat, still including locking mechanism, design subassembly and partition mechanism, be provided with locking mechanism on the supporting seat, locking mechanism is used for controlling the module of moulding plastics and opens and be closed, so that take out injection moulding's lid spoon, it is used for carrying out the design subassembly of filling and is used for carrying out the spaced partition mechanism with two kinds of different hot melt plastics to mould in the module.

Further, the die clamping mechanism comprises a first electric slide rail and a guide block, the first electric slide rail is installed on the upper portion of the supporting seat, and the guide block is installed on the first electric slide rail.

Further, the injection mould component is module and lower module, goes up the module rotary type and links to each other with the guide block to make first electronic slide rail pass through the guide block pulling and go up the module and open the module of moulding plastics, lower module links to each other with the supporting seat, and it has the cavity all to separate on module and the lower module, goes up the cavity position one-to-one on module and the lower module, goes up the inside cavity formation cavity of corresponding of module and lower module when meeting and moulds plastics, in order to be used for the shaping of lid spoon.

Further, the design subassembly includes the limiting plate, first elastic component, clamp plate and stripper bar, go up the module and all be connected with the limiting plate with the equal slidingtype in the module down, the limiting plate is used for filling the cavity of moulding plastics in order to assist the lid spoon shaping, two limiting plates respectively with last module and be connected with first elastic component down between the module, lower module and the equal slidingtype in one side that goes up the module and be close to the limiting plate are connected with the stripper bar that is used for extrudeing the limiting plate and removes, be connected with the clamp plate on one of them stripper bar, the clamp plate supports another stripper bar.

Furthermore, when the two limiting plates are in mutual contact, round holes for hot melt plastics to pass through can be formed at the connecting positions of the two limiting plates, and the number of the round holes is consistent with that of the cavities on the upper module.

Further, separate the mechanism including the electronic slide rail of second, bottom separation board and top separation board, the electronic slide rail of second is installed to the lower module bottom, installs the bottom separation board on the electronic slide rail of second, and the limiting plate of top is connected with the top separation board slidingly in the sliding type, and the quantity and the round hole quantity of top separation board are unanimous, and the top separation board is used for blocking the round hole to separate the cavity of moulding plastics, and the bottom separation board runs through the lower module, and bottom separation board and top separation board one end in opposite directions all opened there is the semicircle orifice.

Furthermore, the device also comprises a steering mechanism, wherein the steering mechanism comprises a rack and a gear, the position of the upper module, which is close to the supporting seat, is connected with the gear, the upper part of the supporting seat is connected with the rack, and the rack is positioned on the moving track of the gear.

Furthermore, the extrusion device comprises an ejection mechanism, the ejection mechanism comprises a baffle, an extrusion frame, extrusion blocks and a second elastic piece, the top of the supporting seat is connected with the baffle, the upper die set is connected with the extrusion frame in a sliding mode, the baffle is used for blocking the extrusion frame, the bottom of the extrusion frame is connected with the extrusion blocks with the quantity being consistent with that of the round holes at uniform intervals, and the second elastic piece is connected between the extrusion blocks and the upper die set.

Furthermore, the pressing plate is made of iron, the electromagnet is installed at the position, close to the extrusion rods, of the lower die set, the electromagnet is used for sucking the pressing plate to drive the extrusion rods to move, and the third elastic piece is connected between the two extrusion rods and the upper die set and the lower die set respectively.

A method for injection molding of a cover spoon for plastic products comprises the following steps:

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

s2, adding hot-melt plastics into the injection molding module through the first injection molding machine and the second injection molding machine;

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

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

and S5, taking out the formed cover spoon.

The beneficial effects are that: 1. when the cover spoon is subjected to injection molding, the two injection-molded parts can be blocked by the upper partition plate, so that hot-melt plastics with different colors or different materials are prevented from being mixed together, the two injection-molded parts can be communicated after primary molding, and the flowability of the hot-melt plastics is reduced during primary molding, so that the two injection-molded parts slowly flow and adhere to each other at the positions close to each other to form the cover spoon, and 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 only by adjusting the upper partition plate and the lower partition plate, the operation flow is less, the operation is simpler, the efficiency during production can be improved, and the time cost during production can be reduced.

3. After the cover spoon is molded, the upper die set can be driven to rotate through the gear and the rack, and the molded cover spoon can be pushed out through the extrusion block, so that the technical effect of automatically pushing out the molded cover spoon is achieved.

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 partial perspective view of the present invention.

Fig. 4 is a schematic perspective view of the upper module according to 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 fixing assembly of the present invention.

FIG. 7 is a schematic view of the connection between the separating mechanism and the lower module according to the present invention.

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

Fig. 9 is an exploded view of a limiting plate and a separation mechanism of the present invention, with the limiting plate in section.

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

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

FIG. 12 is a schematic view of the connection between the upper die set and the ejector mechanism according to the present invention.

Fig. 13 is a schematic perspective view of the ejector mechanism of the present invention.

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

In the reference symbols: 1_ first injection molding machine, 2_ second injection molding machine, 3_ supporting seat, 4_ injection molding module, 41_ lower module, 42_ upper module, 5_ mold clamping mechanism, 51_ first electric slide rail, 52_ guide block, 6_ sizing module, 61_ limiting plate, 62_ first elastic piece, 63_ extrusion rod, 64_ pressing plate, 7_ separation mechanism, 71_ second electric slide rail, 72_ lower separation plate, 73 _ upper separation plate, 8_ steering mechanism, 81_ rack, 82_ gear, 9_ liftout mechanism, 91_ baffle, 92_ extrusion frame, 93_ extrusion block, 94_ second elastic piece, 10_ electromagnet, 11_ third elastic piece.

Detailed Description

The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example 1

A plastic product is with covering spoon injection moulding device, as shown in figure 1, figure 2, figure 3, figure 4, figure 5, figure 6, figure 7, figure 8, figure 9 and figure 14, comprising a first injection molding machine 1, a second injection molding machine 2, a supporting base 3, an injection molding module 4, a mould closing mechanism 5, a shaping component 6 and a separating mechanism 7, wherein the first injection molding machine 1 and the second injection molding machine 2 are distributed in an L shape, the first injection molding machine 1 and the second injection molding machine 2 are used for injection molding, the injection molding module 4 used for forming the covering spoon is arranged between the discharge ports of the first injection molding machine 1 and the second injection molding machine 2, the bottom of the injection molding module 4 is connected with the supporting base 3, the mould closing mechanism 5 is arranged on the supporting base 3, the mould closing mechanism 5 is used for opening and closing the injection molding module 4, so as to take out injection moulding's lid spoon, be provided with in the module 4 of moulding plastics and be used for carrying out the design subassembly 6 of filling and be used for carrying out the separated partition mechanism 7 with the hot melt plastics of two kinds of different colours to its inner chamber body.

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 to the guide block 52, so that the first electric slide 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 to the support base 3, three cavities are respectively formed in the upper module 42 and the lower module 41 at intervals, the cavities in the upper module 42 and the lower module 41 are in one-to-one correspondence, and the corresponding cavities inside the upper module 42 and the lower module 41 form injection molding cavities when they are connected, so as to form a cover spoon.

As shown in fig. 6 and 14, the shaping assembly 6 includes a limiting plate 61, a first elastic part 62, a pressing plate 64 and an extrusion rod 63, the upper module 42 and the lower module 41 are both connected with the limiting plate 61 in a sliding manner, the limiting plate 61 is used for blocking the injection molding cavity to assist the forming of the cover spoon, the two limiting plates 61 are respectively connected with the first elastic part 62 between the upper module 42 and the lower module 41, the lower module 41 and the right side of the upper module 42 are both connected with the extrusion rod 63 used for extruding the movement of the limiting plate 61 in a sliding manner, the pressing plate 64 is connected on the extrusion rod 63 below, the pressing plate 64 supports the extrusion rod 63 above, the two limiting plates 61 are in mutual contact, the contact positions can be formed to allow the hot-melt plastic for preliminary forming to pass through, so as to enable the round holes for forming the cover spoon, and the number of the round holes is three.

As shown in fig. 7-9, the separating mechanism 7 includes a second electric slide rail 71, a bottom separating plate 72 and an upper separating plate 73, the bottom of the lower mold unit 41 is provided with the second electric slide rail 71, the bottom separating plate 72 is provided on the second electric slide rail 71, three upper separating plates 73 are slidably connected in the upper limiting plate 61 at regular intervals, the upper separating plates 73 are used for blocking circular holes to separate the injection molding cavity, the bottom separating plate 72 penetrates through the lower mold unit 41, and semicircular holes are provided at opposite ends of the bottom separating plate 72 and the upper separating plates 73.

When needs use this injection molding device, add the hot melt plastics of two kinds of different colours respectively in first injection molding machine 1 and the second injection molding machine 2, pulling clamp plate 64 drives two squeeze stem 63 and moves left, squeeze stem 63 extrudes limiting plate 61 and moves backward and makes limiting plate 61 and the chamber of moulding plastics between form a lid shape, and the other part of the chamber of moulding plastics then forms the spoon shape, first elastic component 62 is stretched, add the hot melt plastics of two kinds of different colours in rethread first injection molding machine 1 and the second injection molding machine 2 toward moulding plastics module 4 afterwards, the lid shape part is added to the hot melt plastics of 1 interpolation of first injection molding machine, the spoon shape part is added to the hot melt plastics of 2 interpolation of second injection molding machine. When the lower die set 41 and the upper die set 42 are closed, the upper partition plate 73 is inserted into the limiting plate 61 below, the upper end of the lower partition plate 72 is contacted with the lower end of the upper partition plate 73, the two semicircular holes on the lower partition plate 72 and the upper partition plate 73 are closed to form a complete circular hole, the circular hole is blocked by the upper partition plate 73, the two parts of hot melt plastics are not communicated, so that the two different colors of hot melt plastics are respectively formed on the cover-shaped part and the spoon-shaped part of the cavity, after the cavity is filled with the hot melt plastics, the second electric slide rail 71 is controlled to drive the lower partition plate 72 to move upwards, the lower partition plate 72 pushes the upper partition plate 73 to move upwards, the circular hole formed by the lower partition plate 72 and the upper partition plate 73 corresponds to the circular hole, at this time, the plastics formed by the cover-shaped part in the cavity and the plastics formed by the spoon-shaped part can be fused through the circular hole and the circular hole to complete the formation of the cover spoon, and the complete formation of the spoon, pulling clamp plate 64 drives the pressure ram 63 and resets, limiting plate 61 resets no longer blocks the lid spoon under the effect of first elastic component 62, at this moment start second electronic slide rail 71 drive bottom divider board 72 and reset downwards, bottom divider board 72 and top divider board 73 separate, it drives upper module 42 rebound to control first electronic slide rail 51 again through guide block 52, make upper module 42 and lower module 41 separate, fashioned lid spoon is along with upper module 42 rebound, it can to take out fashioned lid spoon from upper module 42 afterwards, top divider board 73 resets downwards, so, just can carry out injection moulding to the lid spoon.

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

When the first electric slide rail 51 drives the upper module 42 to move upwards 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 of the bottom of the upper module to be inclined, so that the cover spoon can be taken out conveniently.

As shown in fig. 3, 12 and 13, the ejection mechanism 9 is further included, the ejection mechanism 9 includes a baffle plate 91, an extrusion frame 92, an extrusion block 93 and a second elastic member 94, the top of the support base 3 is connected with the baffle plate 91, the upper module 42 is slidably connected with the extrusion frame 92, the baffle plate 91 is used for blocking the extrusion frame 92, the bottom of the extrusion frame 92 is uniformly connected with three extrusion blocks 93 at intervals, and the second elastic member 94 is connected between the extrusion blocks 93 and the upper module 42.

Go up module 42 and drive extrusion frame 92 when removing, extrusion piece 93 and second elastic component 94 move together, after extrusion frame 92 moved to and contacted with baffle 91, extrusion frame 92 no longer moved, extrusion piece 93 and second elastic component 94 also no longer move, at this moment, go up module 42 and continue to move and drive fashioned lid spoon and move, because extrusion frame 92, extrusion piece 93 and second elastic component 94 can not move, at this moment extrusion piece 93 can push out fashioned lid spoon, be convenient for the operation of taking out of lid spoon.

As shown in fig. 14, the die further includes an electromagnet 10 and a third elastic element 11, the pressing plate 64 is made of iron, the electromagnet 10 is installed on the upper portion of the right side of the lower die set 41, the electromagnet 10 is used for sucking the pressing plate 64 to drive the extrusion rods 63 to move, and the third elastic element 11 is connected between each of the two extrusion rods 63 and the upper die set 42 and the lower die set 41.

When the extrusion rods 63 need to move, 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 rods 63 need to reset, the electromagnet 10 is closed, the extrusion rods 63 reset under the action of the third elastic piece 11, and the movement of the extrusion rods 63 is controlled conveniently.

Example 2

On the basis of example 1, as shown in fig. 1 to 9, a method for injection molding a plastic article with a ladle:

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

s2, adding hot-melt plastics into the injection molding module 4 through the first injection molding machine 1 and the second injection molding machine 2;

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

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

and S5, taking out the formed cover spoon.

The present application is described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present application, and the descriptions of the above examples are only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A cover spoon injection molding device for plastic products comprises a first injection molding machine (1), a second injection molding machine (2), a supporting seat (3) and an injection molding module (4), wherein the first injection molding machine (1) and the second injection molding machine (2) are distributed in an L shape, the injection molding module (4) used for molding the cover spoon is arranged between discharge ports of the first injection molding machine (1) and the second injection molding machine (2), the bottom of the injection molding module (4) is connected with the supporting seat (3), it is characterized by also comprising a mould closing mechanism (5), a shaping assembly (6) and a separating mechanism (7), wherein the mould closing mechanism (5) is arranged on the supporting seat (3), the mould closing mechanism (5) is used for controlling the opening and closing of the injection mould set (4), so as to take out injection moulding's lid spoon, be provided with in the module (4) of moulding plastics and be used for carrying out the design subassembly (6) of filling and be used for carrying out the partition mechanism (7) of separating two kinds of different hot melt plastics to its inner chamber body.

2. The plastic product ladle-lid injection molding device according to claim 1, wherein the mold clamping mechanism (5) comprises 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).

3. The plastic product ladle injection molding device as claimed in claim 2, wherein 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 the guide block (52) so that the first electric slide 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 support base (3), cavities are respectively formed in the upper module (42) and the lower module (41) at intervals, the positions of the cavities in 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 injection molding cavities when connected so as to form the ladle.

4. The cover spoon injection molding device for the plastic products as claimed in claim 3, wherein the shaping assembly (6) comprises a limiting plate (61), a first elastic part (62), a pressing plate (64) and an extrusion rod (63), the limiting plate (61) is connected to the upper module (42) and the lower module (41) in a sliding manner, the limiting plate (61) is used for filling an injection molding cavity to assist in forming the cover spoon, the first elastic part (62) is connected between the two limiting plates (61) and the upper module (42) and between the two limiting plates (41) and the lower module (42), the extrusion rod (63) used for extruding the limiting plate (61) to move is connected to one side, close to the limiting plate (61), of the lower module (41) and one side, close to the limiting plate (61), of the extrusion rod (63), a pressing plate (64) abuts against the other extrusion rod (63).

5. The cover spoon injection molding device for plastic products as claimed in claim 4, wherein when the two limiting plates (61) contact with each other, round holes for 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 cavities on the upper module (42).

6. The cover and spoon injection molding device for the plastic products as claimed in claim 5, wherein the partition mechanism (7) includes a second electric slide rail (71), a bottom partition plate (72) and an upper partition plate (73), the second electric slide rail (71) is installed at the bottom of the lower module (41), the bottom partition plate (72) is installed on the second electric slide rail (71), the upper partition plate (73) is connected to the upper limiting plate (61) in a sliding manner, the number of the upper partition plate (73) is consistent with the number of the round holes, the upper partition plate (73) is used for blocking the round holes to partition the injection molding cavity, the lower partition plate (72) penetrates through the lower module (41), and the opposite ends of the lower partition plate (72) and the upper partition plate (73) are provided with semicircular holes.

7. The ladle cover injection molding device as claimed in claim 6, further comprising a steering mechanism (8), wherein the steering mechanism (8) comprises a rack (81) and a gear (82), the gear (82) is connected to the position of the upper module (42) close to the support base (3), the rack (81) is connected to the upper portion of the support base (3), and the rack (81) is located on the moving track of the gear (82).

8. The cover spoon injection molding device for the plastic products as claimed in claim 7, further comprising a material ejecting mechanism (9), wherein the material ejecting mechanism (9) comprises a baffle plate (91), an extrusion frame (92), extrusion blocks (93) and second elastic members (94), the baffle plate (91) is connected to the top of the supporting seat (3), the extrusion frame (92) is slidably connected to the upper module (42), the baffle plate (91) is used for blocking the extrusion frame (92), the extrusion blocks (93) with the number identical to that of the round holes are uniformly connected to the bottom of the extrusion frame (92) at intervals, and the second elastic members (94) are connected between the extrusion blocks (93) and the upper module (42).

9. The cover spoon injection molding device for the plastic products as claimed in claim 8, further comprising an electromagnet (10) and a third elastic member (11), wherein the pressing plate (64) is made of iron, the electromagnet (10) is installed at a position, close to the extrusion rod (63), of the lower die set (41), the electromagnet (10) is used for sucking the pressing plate (64) to drive the extrusion rod (63) to move, and the third elastic member (11) is connected between the two extrusion rods (63) and the upper die set (42) and the lower die set (41) respectively.

10. A method of lid-spoon injection moulding of a plastic article according to any of claims 1-6, characterised in that the method steps are as follows:

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

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

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

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

and S5, taking out the formed cover spoon.