Hot runner mold for processing white injection molding part

Abstract

The utility model discloses a hot runner mold for processing a white injection molded part, which relates to the field of injection molding and comprises a heat insulation plate, a panel, a base plate, a hot runner assembly, a plate A and a fixed mold core, the hot runner assembly comprises a hot runner plate, a hot sprue assembly and a heat preservation assembly, and the hot runner plate comprises a first runner plate and a second runner plate. The plurality of second runner plates are detachably arranged at one end of the lower surface of the first runner plate, a first runner is arranged in the first runner plate, a second runner is arranged in the second runner plate, the second runner is connected to the first runner, and the hot sprue assembly comprises a first hot sprue, a second hot sprue and a third hot sprue. The first runner plate and the second runner plate are each provided with a heat preservation assembly. The first runner plate and the second runner plate are detachably connected and assembled to form the hot runner plate, and different second runner plates can be adopted according to the shapes of products.

Description

Technical Field

[0001] The utility model relates to the field of injection molding, in particular to a hot runner mold for processing white injection molding parts. Background Art

[0002] Hot runner molds are molds that use heating devices to keep the melt in the runner from solidifying. Because they have a shorter molding cycle than traditional molds and save more raw materials, hot runner molds are widely used in industrially developed countries and regions in the world today. Hot runner systems generally consist of hot nozzles, manifolds, temperature control boxes, and accessories. Hot nozzles generally include two types: open hot nozzles and needle valve hot nozzles.

[0003] Conventional hot runner plates are generally made of an integral structure. The hot runner plate is usually processed by gun drilling. If the hot runner plate is not suitable for the mold, it needs to be replaced as a whole, which requires a special mold and has poor versatility.

[0004] Therefore, a hot runner mold for processing white injection molded parts is provided, so that the hot runner plate can change the structure and the injection position according to the shape of the product. Utility Model Content

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hot runner mold for processing white injection molded parts, including a fixed mold and a movable mold, the fixed mold including: a heat insulation plate, a panel, a pad, a hot runner assembly, an A plate, and a fixed mold core, the heat insulation plate, the panel, the pad and the A plate are stacked in sequence, the fixed mold core is embedded in the A plate, the hot runner assembly includes a hot runner plate, a hot nozzle assembly and a heat preservation assembly, the hot runner plate includes a first runner plate and a second runner plate, and a plurality of the second runner plates are detachable by screws It is arranged at one end of the lower surface of the first flow channel plate, the first flow channel is provided inside the first flow channel plate, the second flow channel is provided inside the second flow channel plate, the second flow channels are connected to the first flow channel, the hot nozzle assembly includes a first hot nozzle, a second hot nozzle, and a third hot nozzle, the first hot nozzle is arranged through the first flow channel plate, the second hot nozzle is arranged through the second flow channel plate, the third hot nozzle is arranged through the first flow channel plate and the second flow channel plate in sequence, and the first flow channel plate and the second flow channel plate are both provided with insulation components.

[0006] Further, a projection of the second flow channel plate onto the lower surface of the first flow channel plate intersects with the lower surface of the first flow channel plate.

[0007] Preferably, the upper surface and the lower surface of the first flow channel plate are respectively provided with a first groove and a second groove, the first flow channel includes a plurality of first channels, one end of each of the first channels is connected to the center position of the first flow channel plate, and the two ends of each of the first channels are respectively connected to the first groove and the second groove, the first groove is arranged at the center position of the first flow channel plate, and the second groove is arranged around the first groove.

[0008] Preferably, a third groove and a fourth groove are respectively provided on the upper surface and the lower surface of the second flow channel plate, the second flow channel includes a plurality of second channels, one end of each of the second channels is connected to the center position of the second flow channel plate, and the two ends of each of the second channels are respectively connected to the third groove and the fourth groove, the third groove is arranged at the center position of the second flow channel plate, the fourth groove is arranged around the third groove, and the second grooves are connected to the third grooves one-to-one.

[0009] Preferably, the first heat nozzle sequentially penetrates the second groove, the second heat nozzle sequentially penetrates the second groove and the third groove, and the third heat nozzle sequentially penetrates the fourth groove.

[0010] Preferably, it further comprises a positioning ring, which is arranged at the center of the first flow channel plate, and a plurality of the second flow channel plates are detachably arranged on the lower surface of the first flow channel plate around the positioning ring.

[0011] Preferably, the insulation component includes an electric heating tube and a joint, the joint is arranged at both ends of the electric heating tube, the electric heating tube is embedded in the upper and lower surfaces of the first flow channel plate and the second flow channel plate, and the first hot nozzle, the second hot nozzle and the third hot nozzle are all spaced apart from the electric heating tube.

[0012] Preferably, the first hot nozzle, the second hot nozzle and the third hot nozzle all include a hot nozzle body, a fixing block, a flange and an insert pin, the hot nozzle body is provided with a through hole, the flange, the fixing block and the hot nozzle body are arranged in sequence from top to bottom, the fixing block and the hot nozzle body are respectively arranged on the upper surface and the lower surface of the hot runner assembly, the flange is fixedly connected to the fixing block, the flange and the fixing block are both embedded in the heat insulation board, the flange and the heat insulation board are detachably connected, one end of the insert pin is fixedly set on the fixing block, the other end of the insert pin passes through the through hole, and the insert pin is coaxially arranged with the through hole.

[0013] Preferably, the electric heating tube is arranged around the first heat nozzle, the electric heating tube is arranged around the second heat nozzle, and the electric heating tube is arranged around the third heat nozzle.

[0014] Preferably, the panel is provided with a channel, the hot runner assembly and the thermal insulation assembly are both arranged inside the channel, and the hot runner assembly and the thermal insulation assembly are both arranged between the thermal insulation plate and the pad.

[0015] Preferably, a plurality of water channels are provided inside the insulation board, solenoid valves are provided at both ends of the insulation board, the two solenoid valves are electrically connected through cables, the cables are embedded in the upper surface of the insulation board, the water channels are connected to the solenoid valves, and receiving grooves are recessed at both ends of the panel, and the lower end of the solenoid valve is arranged inside the receiving grooves.

[0016] The beneficial effects of the utility model are as follows: the first runner plate and the second runner plate can be detachably connected and assembled into a hot runner plate, different second runner plates can be used according to the shape of the product, and damaged first runner plates and second runner plates can be quickly replaced, thereby reducing the use cost of the hot runner plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings further illustrate the present invention, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0018] Figure 1 A three-dimensional cross-sectional view of a hot runner mold provided by an embodiment of the utility model Figure 1 ;

[0019] Figure 2 A three-dimensional cross-sectional view of a hot runner mold provided by an embodiment of the utility model Figure 2 ;

[0020] Figure 3 for Figure 1 A partial enlarged view of the C part provided in;

[0021] Figure 4 A schematic diagram of the structure of a hot runner assembly provided in one embodiment of the utility model;

[0022] Figure 5 A three-dimensional diagram of a hot runner assembly provided in accordance with an embodiment of the present invention.

[0023] Figure numerals: 1: insulation board; 2: panel; 3: pad; 4: A-plate; 5: fixed mold core; 6: positioning ring; 71: first flow channel plate; 72: second flow channel plate; 81: electric heating tube; 82: joint; 91: first hot nozzle; 92: second hot nozzle; 93: third hot nozzle. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0025] It should be noted that in the present invention, unless otherwise stated, when an element is referred to as being "fixed to" or "set on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The directional words used, such as "upper, lower, left, right" generally refer to the upper, lower, left, right, and right sides of the element. Figure 1 "Inside and outside" refer to the inside and outside of a specific outline. "Far and near" refer to the far and near relative to a certain component.

[0026] like Figure 1-Figure 5 As shown in, a hot runner mold for processing white injection molded parts provided by an embodiment of the utility model includes a fixed mold and a movable mold, the fixed mold includes: an insulation plate 1, a panel 2, a pad 3, a hot runner assembly, an A plate 4, and a fixed mold core 5, the insulation plate 1, the panel 2, the pad 3 and the A plate 4 are stacked in sequence, the fixed mold core 5 is embedded in the A plate 4, the hot runner assembly includes a hot runner plate, a hot nozzle assembly and a heat preservation assembly, the hot runner plate includes a first runner plate 71 and a second runner plate 72, and a plurality of the second runner plates 72 are detachably arranged on the first runner plate 71 by screws At one end of the lower surface, a first flow channel is provided inside the first flow channel plate 71, and a second flow channel is provided inside the second flow channel plate 72. The second flow channels are connected to the first flow channel. The hot nozzle assembly includes a first hot nozzle 91, a second hot nozzle 92, and a third hot nozzle 93. The first hot nozzle 91 is arranged through the first flow channel plate 71, the second hot nozzle 92 is arranged through the second flow channel plate 72, and the third hot nozzle 93 is arranged through the first flow channel plate 71 and the second flow channel plate 72 in sequence. The first flow channel plate 71 and the second flow channel plate 72 are both provided with insulation components.

[0027] Furthermore, a projection of the second flow channel plate 72 onto the lower surface of the first flow channel plate 71 intersects with the lower surface of the first flow channel plate 71 .

[0028] The first flow channel plate 71 has a first groove and a second groove on its upper surface and lower surface, respectively. The first flow channel includes a plurality of first channels, one end of each of which is connected to the center of the first flow channel plate 71, and both ends of each of the first channels are connected to the first groove and the second groove, respectively. The first groove is arranged at the center of the first flow channel plate 71, and the second groove is arranged around the first groove.

[0029] The upper surface and the lower surface of the second flow channel plate 72 are respectively provided with a third groove and a fourth groove. The second flow channel includes a plurality of second channels. One ends of the plurality of second channels are connected to the center position of the second flow channel plate 72. Both ends of each second channel are respectively connected to the third groove and the fourth groove. The third groove is arranged at the center position of the second flow channel plate 72, and the fourth groove is arranged around the third groove. The second grooves are connected to the third grooves one by one.

[0030] The first heat nozzle 91 sequentially penetrates the second groove, the second heat nozzle 92 sequentially penetrates the second groove and the third groove, and the third heat nozzle 93 sequentially penetrates the fourth groove.

[0031] It also includes a positioning ring 6 , which is arranged at the center of the first flow channel plate 71 , and a plurality of second flow channel plates 72 are detachably arranged on the lower surface of the first flow channel plate 71 around the positioning ring 6 .

[0032] The insulation component includes an electric heating tube 81 and a joint 82. The joint 82 is arranged at both ends of the electric heating tube 81. The electric heating tube 81 is embedded in the upper surface and lower surface of the first flow channel plate 71 and the second flow channel plate 72. The first hot nozzle 91, the second hot nozzle 92 and the third hot nozzle 93 are all spaced apart from the electric heating tube 81.

[0033] The first hot nozzle 91, the second hot nozzle 92 and the third hot nozzle 93 all include a hot nozzle body, a fixing block, a flange and an insert pin. The hot nozzle body is provided with a through hole. The flange, the fixing block and the hot nozzle body are arranged in sequence from top to bottom. The fixing block and the hot nozzle body are respectively arranged on the upper surface and the lower surface of the hot runner assembly. The flange is fixedly connected to the fixing block. The flange and the fixing block are both embedded in the heat insulation board 1. The flange is detachably connected to the heat insulation board 1. One end of the insert pin is fixedly set on the fixing block, and the other end of the insert pin passes through the through hole. The insert pin and the through hole are coaxially arranged.

[0034] The electric heating pipe 81 is arranged around the first heat nozzle 91 , the electric heating pipe 81 is arranged around the second heat nozzle 92 , and the electric heating pipe 81 is arranged around the third heat nozzle 93 .

[0035] The panel 2 is provided with a channel, the hot runner assembly and the heat preservation assembly are both arranged inside the channel, and the hot runner assembly and the heat preservation assembly are both arranged between the heat insulation board 1 and the pad 3 .

[0036] Several water channels are arranged inside the insulation board 1. Solenoid valves are arranged at both ends of the insulation board 1. The two solenoid valves are electrically connected by cables. The cables are embedded in the upper surface of the insulation board 1. The water channels are connected to the solenoid valves. Receiving grooves are arranged at both ends of the panel 2. The lower end of the solenoid valve is arranged inside the receiving grooves.

[0037] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, which should be considered as the scope of this specification.

Claims

1. A hot runner mold for processing white injection molded parts, characterized in that: It includes a fixed mold and a movable mold, the fixed mold includes: an insulation plate, a panel, a pad, a hot runner assembly, an A plate, and a fixed mold core, the insulation plate, the panel, the pad and the A plate are stacked in sequence, the fixed mold core is embedded in the A plate, the hot runner assembly includes a hot runner plate, a hot nozzle assembly and a thermal insulation assembly, the hot runner plate includes a first runner plate and a second runner plate, a plurality of the second runner plates are detachably arranged at one end of the lower surface of the first runner plate, a first runner is arranged inside the first runner plate, a second runner is arranged inside the second runner plate, and the second runners are all connected to the first runner, the hot nozzle assembly includes a first hot nozzle, a second hot nozzle and a third hot nozzle, the first hot nozzle is penetrated through the first runner plate, the second hot nozzle is penetrated through the second runner plate, the third hot nozzle is sequentially penetrated through the first runner plate and the second runner plate, and the first runner plate and the second runner plate are both provided with thermal insulation components.

2. The hot runner mold for processing white injection molded parts according to claim 1, characterized in that: The first flow channel plate has an upper surface and a lower surface provided with a first groove and a second groove, respectively. The first flow channel includes a plurality of first channels, one ends of the plurality of first channels are connected to the center of the first flow channel plate, and both ends of each of the first channels are connected to the first groove and the second groove, respectively. The first groove is arranged at the center of the first flow channel plate, and the second groove is arranged around the first groove.

3. The hot runner mold for processing white injection molded parts according to claim 2, characterized in that: The upper surface and the lower surface of the second flow channel plate are respectively provided with a third groove and a fourth groove, the second flow channel includes a plurality of second channels, one end of each of the second channels is connected to the center position of the second flow channel plate, and the two ends of each of the second channels are respectively connected to the third groove and the fourth groove, the third groove is arranged at the center position of the second flow channel plate, the fourth groove is arranged around the third groove, and the second grooves are connected to the third grooves one by one.

4. The hot runner mold for processing white injection molded parts according to claim 3, characterized in that: The first heat nozzle sequentially penetrates the second groove, the second heat nozzle sequentially penetrates the second groove and the third groove, and the third heat nozzle sequentially penetrates the fourth groove.

5. The hot runner mold for processing white injection molded parts according to claim 1, characterized in that: It also includes a positioning ring, which is arranged at the center of the first flow channel plate, and a plurality of the second flow channel plates are detachably arranged on the lower surface of the first flow channel plate around the positioning ring.

6. The hot runner mold for processing white injection molded parts according to claim 1, characterized in that: The insulation component includes an electric heating tube and a joint, the joint is arranged at both ends of the electric heating tube, the electric heating tube is embedded in the upper and lower surfaces of the first flow channel plate and the second flow channel plate, and the first hot nozzle, the second hot nozzle and the third hot nozzle are all spaced apart from the electric heating tube.

7. The hot runner mold for processing white injection molded parts according to claim 1, characterized in that: The first hot nozzle, the second hot nozzle and the third hot nozzle all include a hot nozzle body, a fixing block, a flange and an insert pin. The hot nozzle body is provided with a through hole. The flange, the fixing block and the hot nozzle body are arranged in sequence from top to bottom. The fixing block and the hot nozzle body are respectively arranged on the upper surface and the lower surface of the hot runner assembly. The flange is fixedly connected to the fixing block. The flange and the fixing block are both embedded in the heat insulation board. One end of the insert pin is fixedly arranged on the fixing block, and the other end of the insert pin passes through the through hole. The insert pin and the through hole are coaxially arranged.

8. The hot runner mold for processing white injection molded parts according to claim 6, characterized in that: The electric heating tube is arranged around the first heat nozzle, the electric heating tube is arranged around the second heat nozzle, and the electric heating tube is arranged around the third heat nozzle.

9. The hot runner mold for processing white injection molded parts according to claim 1, characterized in that: The panel is provided with a channel, the hot runner component and the heat preservation component are both arranged inside the channel, and the hot runner component and the heat preservation component are both arranged between the heat insulation board and the pad.

10. The hot runner mold for processing white injection molded parts according to claim 1, characterized in that: A plurality of water channels are arranged inside the heat insulation board, and solenoid valves are arranged at both ends of the heat insulation board. The two solenoid valves are electrically connected through cables, and the cables are embedded in the upper surface of the heat insulation board. The water channels are connected to the solenoid valves, and receiving grooves are recessed at both ends of the panel, and the lower end of the solenoid valve is arranged inside the receiving grooves.

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