CN211363274U - Multi-point injection hot runner injection mold of luggage case - Google Patents

Abstract

The utility model provides a multiple spot injection hot runner injection mold of suitcase body, this mould includes cover half subassembly, movable mould subassembly and by the die cavity that forms between cover half subassembly and the movable mould subassembly be equipped with the mold core in the die cavity be equipped with the hot runner assembly above the movable mould subassembly, this hot runner assembly is equipped with a plurality of glue inlets, these a plurality of glue inlets with movable mould subassembly and mold core are linked together. The utility model discloses a be equipped with a plurality of jiao kou that advance with hot runner assembly, and can control respectively to advance opening order and the time of jiao kou as required, make the sizing material distribute evenly, be favorable to great thin wall box can both beat the sizing material all around, the yield is high, and the product appearance is pleasing to the eye. The utility model discloses simple structure still has, portable and characteristics such as trip and convenient operation.

Description

Multi-point injection hot runner injection mold of luggage case

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of mold, in particular to luggage box's multiple spot injection hot runner injection mold.

[ background of the invention ]

The box body is a main component of the luggage case, rubber materials are injected into a mold cavity of the box body through a single pouring gate when the box body is injected by the existing mold, and then the rubber materials enter the periphery of the box body through the mold cavity of the box body. Because the box body has larger volume but the requirements are light and thin, the sizing material flows into the cavity of the box body unevenly and is easy to retard, thus easily causing insufficient injection molding, easily causing defects on products and having low yield. Therefore, in order to reduce defects and improve the yield of the traditional case, the thickness of the case is generally designed to be thicker, so that the case is heavy and is not convenient to carry and go out, and some luggage cases even exceed one third of the specified weight of an airline company, so that the use convenience is seriously reduced, and the use range of the luggage cases is restricted.

[ summary of the invention ]

The utility model aims at solving the above problem, and provide a yield is high, and the box is frivolous, easily carries and the luggage box's of trip multiple spot injection hot runner injection mold.

For realizing the utility model discloses a purpose, the utility model provides a luggage box's multiple spot injection hot runner injection mold, this mould include cover half subassembly, movable mould subassembly and by the die cavity that forms between cover half subassembly and the movable mould subassembly be equipped with the mold core in the die cavity the top of movable mould subassembly is equipped with hot runner assembly, and this hot runner assembly is equipped with a plurality of glue inlets, these a plurality of glue inlets with movable mould subassembly and mold core are linked together.

The fixed die assembly comprises a fixed die plate, a lower fixed plate arranged below the fixed die plate and a lower die leg arranged between the fixed die plate and the lower fixed plate, a first accommodating cavity for accommodating the die core is arranged in the fixed die plate, and a plurality of grooves are formed in the upper end portion of the fixed die plate.

The movable mold component comprises a movable mold plate, an upper fixed plate arranged above the movable mold plate and an upper mold foot arranged between the movable mold plate and the upper fixed plate, a second accommodating cavity is arranged at the lower end of the movable mold plate, the second accommodating cavity and the first accommodating cavity are closed to form a mold cavity, and a plurality of first through holes penetrating through a glue inlet of the hot runner component are formed in the second accommodating cavity.

The hot runner assembly is including being fixed in the runner plate that is used for shunting the sizing material on the movable mould subassembly, the runner bottom plate that is fixed in on the runner plate, heating element chews, and the holding ring is chewed to the heat, and the runner cover reaches and locates the runner cover upper end, be equipped with subchannel and a plurality of jiao kou of advancing on the runner plate, heating element includes heating coil and terminal box, the outside of movable mould subassembly is located to the terminal box, and it is connected with heating coil and heat are chewed the electricity respectively, the one end that the heat was chewed is linked together with the jiao kou of runner plate, its other end with the fixed die plate of fixed die subassembly is.

The hot nozzle is a needle valve type hot nozzle and comprises an air cylinder, a push plate assembly arranged below the air cylinder, a rubber inlet sleeve arranged below the push plate assembly and a water jacket arranged at the lower end part of the rubber inlet sleeve and used for cooling rubber materials, wherein the rubber inlet is arranged at the end part of the rubber inlet sleeve, and the air cylinder enables the rubber materials to enter the rubber inlet sleeve through the push plate assembly and then flow into the mold cavity from the rubber inlet.

The hot runner assembly is provided with seven glue inlets, and the air cylinders can independently control the opening sequence and time of the glue inlets.

And a heat insulation plate is arranged above the runner bottom plate, and a plurality of accommodating holes for accommodating the heat nozzles and through holes for accommodating the positioning rings are arranged on the heat insulation plate.

And a driving assembly for driving the movable die assembly to reciprocate along the vertical direction is arranged on the side part of the movable die assembly.

The driving assembly is provided with an oil hydraulic cylinder, a thimble panel, a thimble bottom plate and a return rod, the thimble panel is arranged above the oil hydraulic cylinder and connected with a driving shaft of the oil hydraulic cylinder, the thimble bottom plate is arranged above the thimble panel, one end of the return rod penetrates through the thimble panel and is flush with the upper end surface of the thimble panel, and the other end of the return rod penetrates out of the movable mold assembly and is accommodated in the fixed mold assembly.

Furthermore, the number of the oil hydraulic cylinders is two, and the oil hydraulic cylinders are respectively arranged on two sides of the movable die assembly.

The utility model discloses a contribution lies in, it has effectively solved the problem that current injection mold moulded plastics that luggage box thickness is thick, weight is big, the yield is low. The utility model discloses a be equipped with a plurality of jiao kou that advance with hot runner assembly, and can control respectively to advance opening order and the time of jiao kou as required, make the sizing material distribute evenly, be favorable to great thin wall box can both beat the sizing material all around, the yield is high, and the product appearance is pleasing to the eye. The utility model discloses simple structure still has, portable and characteristics such as trip and convenient operation.

[ description of the drawings ]

Fig. 1 is a schematic top view of the present invention.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is a schematic perspective view of the movable mold assembly of the present invention.

[ detailed description ] embodiments

The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.

Referring to fig. 1 and 3, the multi-injection hot runner injection mold of the luggage box of the present invention includes a fixed mold component 10, a movable mold component 20, a mold cavity 30, a mold core 40, a hot runner component 50 and a driving component 60.

As shown in fig. 1, 2, 3 and 4, the fixed mold assembly 10 and the movable mold assembly 20 are aligned to form a mold cavity 30, and a mold core 40 is provided in the mold cavity 30. Specifically, the fixed mold assembly 10 includes a fixed mold plate 11, a lower fixing plate 12 and a lower mold base 13, wherein the fixed mold plate 11 is a rectangular plate, a first accommodating cavity 111 is provided in the fixed mold plate 11 for accommodating the mold core 40, a plurality of grooves 112 are provided at an upper end of the fixed mold plate 11 for accommodating ends of the return rods 64 of the driving assembly 60, and in this embodiment, the grooves 112 are provided at two ends of two sides of the fixed mold plate 11 respectively. A lower fixing plate 12 is provided at the lower end of the fixed die plate 11 for fixing the fixed die plate 11. A lower die leg 13 is arranged between the fixed die plate 11 and the lower fixing plate 12 to enable the fixed die plate 11 to be flat. In the present embodiment, the lower fixing plate 12 is screwed to the lower die leg 13, and the lower fixing plate 12 is screwed to the lower end of the fixed die plate 11. The movable mold assembly 20 includes a movable mold plate 21, an upper fixed plate 22 and an upper mold leg 23, wherein the movable mold plate 21 is a rectangular plate-shaped body, a second receiving cavity 211 is provided at the lower end of the movable mold plate 21, the second receiving cavity 211 is matched with the first receiving cavity 111 to form a mold cavity 30, and the shape of the mold cavity 30 matches with the shape of the luggage body. A plurality of first through holes 212 are disposed in the second receiving cavity 211, and are used for passing through a glue inlet of the hot runner assembly 50. In this embodiment, seven first through holes 212 are disposed in the second accommodating cavity 211, and the size and position of each first through hole 212 are matched with the size and position of the rubber sleeve. An upper fixing plate 22 is arranged above the movable template 21 and used for fixing the movable template 21, and a plurality of second through holes are formed in the upper fixing plate 22 and used for passing through the glue inlet sleeve. A plurality of circular holes are formed in the movable platen 21 for allowing the return rods 64 of the driving assembly 60 to pass through. An upper mold leg 23 is arranged between the movable mold plate 21 and the upper fixing plate 22 to enable the movable mold plate 21 to be flat, wherein the upper mold leg 23 is a rectangular block, in the embodiment, four upper mold legs 23 are arranged and are respectively arranged at four top corners of the movable mold plate 21, and the upper fixing plate 22 is in threaded connection with the upper mold legs 23. As shown in fig. 2, the stationary mold plate 11 and the movable mold plate 21 are engaged to form a mold cavity 30 for receiving the mold core 40, and the shape and size of the mold cavity 30 match those of the luggage body. As shown in fig. 3, a mold core 40 is provided in the mold cavity 30, the mold core 40 is configured to match the structure of the luggage body, the size of the mold core 40 is smaller than that of the mold cavity 30, and the gap between the mold core 40 and the inner wall of the mold cavity 30 is the thickness of the luggage body. The upper part of the mold core 40 is provided with a plurality of accommodating holes 41 for accommodating the rubber sleeves, the bottom of the mold core 40 is provided with a rubber inlet hole 42, the rubber inlet hole 42 is communicated with the accommodating holes 41, and the inner diameter of the rubber inlet hole 42 is smaller than that of the accommodating holes 41.

As shown in fig. 1, 2 and 3, a hot runner assembly 50 is provided above the movable mold assembly 20 for melting and injecting the molten rubber material into the mold cavity 30. The hot runner assembly 50 comprises a runner plate 51, a runner bottom plate 52, a heating assembly 53, a hot nozzle 54, a heat insulation plate 55, a sprue bush 56 and a positioning ring 57, wherein a runner channel for shunting melt rubber is arranged on the runner plate 51, a plurality of rubber inlets are arranged on the runner plate 51, the runner bottom plate 52 is fixed at the upper end of the runner plate 51, and a plurality of through holes for accommodating cylinders are arranged on the runner bottom plate 52. The heating assembly 53 includes a heating coil (not shown) and a junction box 531, wherein the junction box 531 is disposed outside the movable mold assembly 20 and electrically connected to the heating coil and the heat nozzle 54, respectively. The hot nozzle 54 is a needle valve type hot nozzle, and comprises a plurality of air cylinders 541, a push plate assembly 542, a glue inlet sleeve 543 and a water jacket 544, wherein the air cylinders 541 drive the push plate assembly 542 through the air cylinders 541 to feed glue into the mold cavity 30 from a glue inlet through the glue inlet sleeve 543. The number of the air cylinders 541 in the embodiment is seven, and each air cylinder 541 can independently control the opening sequence and time of each glue inlet so as to meet the injection molding requirement. Of course, the number of the cylinders 541 may also be set as needed. In addition, a heat shield 55 is provided above the flow channel floor 52 to insulate the glue within the flow channel floor 52. A sprue bushing 56 is provided on the heat shield 55 for flowing glue into the runner plate 51. A positioning ring 57 is provided at the upper end of the sprue bush 56 to ensure that the mold is quickly butted to the injection molding machine during mold change, thereby greatly shortening the mold adjustment time.

As shown in fig. 2 and 3, a driving assembly 60 is disposed at a side portion of the movable die assembly 20, and is used for driving the movable die assembly 20 to reciprocate in a vertical direction, so as to open the die and eject the product. Specifically, the driving assembly 60 includes a hydraulic cylinder 61, a needle panel 62, a needle base 63, and a return rod 64. In this embodiment, two hydraulic cylinders 61 are provided, which are respectively disposed on two sides of the movable mold assembly 20, the thimble panel 62 is connected to the driving shaft of the hydraulic cylinder 61, and the thimble base plate 63 is disposed between the thimble panel 62 and the upper fixing plate 22, in this embodiment, the thimble base plate 63 is screwed to the upper fixing plate 22, and the thimble panel 62 is screwed to the thimble base plate 63. One end of the return rod 64 penetrates through the ejector pin panel 62 and is flush with the upper end surface of the ejector pin panel 62, the other end of the return rod penetrates through the movable die plate 21 of the movable die assembly 20, and when the die is closed, the end of the return rod 64 falls into the groove of the fixed die plate 11 to realize return.

As shown in fig. 2 and fig. 3, the working process of the present invention is: the oil hydraulic cylinder 61 drives the movable mould plate 21 to move downwards through the ejector pin panel 62, so that mould closing is realized. During injection molding, the feed liquid enters the runner plate 51 from the sprue bush 56, is in a molten state under the heating action of the heating assembly 53, is divided by the branch channels of the runner plate 51 and then enters the hot nozzles 54, and the opening and closing of the hot nozzles 54 are controlled by the air cylinder 541. In this embodiment, according to the actual injection molding requirement, each cylinder 541 can independently control the opening sequence and time of the glue inlet of each hot nozzle 54, thereby ensuring that the product can be filled and the appearance quality requirement can be met. In addition, the problem that a welding line is easily caused due to multipoint glue feeding can be avoided by combining highlight traceless auxiliary injection molding, and the attractive appearance of a product is ensured. The feed liquid flows through the die cavity 30 through the glue inlet of the hot nozzle 54 for injection molding. When the injection molding is finished, the oil hydraulic cylinder 61 drives the movable mold plate 21 to move upwards through the ejector pin panel 62, so that the mold opening is realized. The ejector pin panel 62 is driven by the oil cylinder 61 to move downwards to eject the product, and then the ejector pin panel 62 is driven by the oil cylinder 61 to move upwards to reset and is positioned by the reset rod 64 to finish injection molding.

Therefore, the utility model discloses a multi-point injection hot runner injection mold of suitcase body is through being equipped with a plurality of glue mouths that advance with hot runner assembly, and can control respectively as required and advance opening order and the time of gluing the mouth, makes the sizing material distribute evenly, can realize moulding plastics of thin wall box, portable and trip, and the yield is high, and the product appearance is pleasing to the eye, has overcome the single-point and has advanced gluey problem that makes casing thickness big because of material mobility. Furthermore, the utility model discloses still have characteristics such as simple structure and convenient operation.

Although the present invention has been described in connection with the above embodiments, the scope of the present invention is not limited thereto, and modifications, replacements, and the like to the above members are all within the scope of the claims of the present invention without departing from the concept of the present invention.

Claims (10)

1. The utility model provides a multiple spot injection hot runner injection mold of suitcase body, its characterized in that, this mould includes cover half subassembly (10), movable mould subassembly (20) and by die cavity (30) that form between cover half subassembly (10) and movable mould subassembly (20) be equipped with mold core (40) in die cavity (30) be equipped with hot runner assembly (50) above movable mould subassembly (20), this hot runner assembly (50) are equipped with a plurality of mouthful of advancing to glue, these a plurality of mouthful of advancing to glue with movable mould subassembly (20) and mold core (40) are linked together.

2. The multi-point injection hot runner injection mold of a luggage body according to claim 1, wherein the fixed mold assembly (10) comprises a fixed mold plate (11), a lower fixed plate (12) disposed below the fixed mold plate (11), and a lower mold leg (13) disposed between the fixed mold plate (11) and the lower fixed plate (12), a first accommodating cavity (111) for accommodating the mold core (40) is disposed in the fixed mold plate (11), and a plurality of grooves (112) are disposed at an upper end portion of the fixed mold plate (11).

3. The multi-point injection hot runner injection mold of the luggage body of claim 2, wherein the movable mold assembly (20) comprises a movable mold plate (21), an upper fixed plate (22) arranged above the movable mold plate (21), and an upper mold leg (23) arranged between the movable mold plate (21) and the upper fixed plate (22), a second accommodating cavity (211) is arranged at the lower end of the movable mold plate (21), the second accommodating cavity (211) is matched with the first accommodating cavity (111) to form a mold cavity (30), and a plurality of first through holes (212) which pass through a glue inlet of the hot runner assembly (50) are arranged in the second accommodating cavity (211).

4. The multi-point injection hot runner injection mold of a luggage body of claim 2, the hot runner assembly (50) comprises a runner plate (51) which is fixed on the movable mold assembly (20) and used for distributing rubber materials, a runner bottom plate (52) which is fixed on the runner plate (51), a heating assembly (53), a hot nozzle (54), a sprue bush (56) and a positioning ring (57) which is arranged at the upper end of the sprue bush (56), the runner plate (51) is provided with a runner and a plurality of glue inlets, the heating assembly (53) comprises a heating coil and a junction box (531), the junction box (531) is arranged on the outer side of the movable mold assembly (20), which are respectively and electrically connected with the heating coil and the hot nozzle (54), one end of the hot nozzle (54) is communicated with the glue inlet of the runner plate (51), the other end of the fixed die assembly is communicated with a fixed die plate (11) of the fixed die assembly (10).

5. The multi-point injection hot runner injection mold of the luggage body of claim 4, wherein the hot nozzle (54) is a needle valve type hot nozzle, and comprises a cylinder (541), a push plate assembly (542) arranged below the cylinder (541), a glue inlet sleeve (543) arranged below the push plate assembly (542), and a water jacket (544) arranged at the lower end of the glue inlet sleeve (543) and used for cooling glue, wherein the glue inlet is arranged at the end of the glue inlet sleeve (543), and the glue enters the glue inlet sleeve (543) through the push plate assembly (542) by the cylinder (541) and then flows into the mold cavity (30) from the glue inlet.

6. The multi-injection hot runner injection mold for luggage body of claim 5, wherein the hot runner assembly (50) is provided with seven glue inlets, and the sequence and timing of the opening of each glue inlet can be controlled individually by each air cylinder (541).

7. The multi-injection hot runner injection mold for a luggage body of claim 4, wherein a heat insulating plate (55) is provided above the runner floor (52), and the heat insulating plate (55) is provided with a plurality of receiving holes (551) for receiving the hot nozzle (54) and through holes for receiving the positioning ring (57).

8. The multi-injection hot runner injection mold for a luggage body according to claim 1, wherein a driving assembly (60) for driving the movable mold assembly (20) to reciprocate in a vertical direction is provided at a side portion of the movable mold assembly (20).

9. The multi-point injection hot runner injection mold of a luggage body according to claim 8, wherein the driving assembly (60) is provided with an oil hydraulic cylinder (61), a thimble panel (62) disposed above the oil hydraulic cylinder (61) and connected to a driving shaft thereof, a thimble base plate (63) disposed above the thimble panel (62) and a return rod (64), one end of the return rod (64) passes through the thimble panel (62) and is flush with an upper end surface of the thimble panel (62), and the other end thereof passes through the movable mold assembly (20) and is accommodated in the fixed mold assembly (10).

10. The multi-injection hot runner injection mold for a luggage body according to claim 9, wherein the number of the oil hydraulic cylinders (61) is two, and they are respectively provided at both sides of the movable mold assembly (20).

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