Fast-assembly type upper mold and injection mold

Abstract

The utility model relates to the technical field of molds, in particular to a quick-assembly type upper mold and an injection mold. The fast-assembly type upper die comprises a panel, a stripper plate, an upper die plate and an upper die core which are sequentially arranged from top to bottom. Wherein the sprue and the panel are provided with water gap needles; the first mounting seat is arranged on the water gap plate, and the sprue and the water gap needle are tightly pressed on the panel by the first mounting seat. The second mounting seat is arranged on the upper template; and a runner plate is arranged in the first mounting groove of the second mounting seat and is positioned on the back of the upper mold core. When the sprue and the gate needle are replaced on a machine table, the upper mold core, the runner plate, the second mounting seat and the first mounting seat are sequentially detached, and when the sprue and the gate needle are detached to the first mounting seat, the gate needle and the sprue are exposed from the bottom of the mold base, so that the sprue and the gate needle can be directly replaced, and the sprue and the gate needle can be very conveniently and efficiently replaced on the machine table of the mold; and the test efficiency of the mold is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a quick-install upper mold and an injection mold. Background Art

[0002] Now many customers will open experimental molds to verify the problem points of their products. However, the cost of opening a set of molds for each product is too high, so the mold base of the mold will be set to an interchangeable structure. After the test is qualified, the mold will be assembled on the mold base (mold frame) in production. The upper mold is one of the important parts of the mold. When testing different molds, it is usually necessary to replace the nozzle, sprue needle, and upper mold core, and then conduct repeated tests. However, when replacing the nozzle, sprue needle, and upper mold core of ordinary production molds, it is usually necessary to remove the entire upper mold from the machine, and then replace the relevant parts. In this way, the replacement speed of the upper mold accessories is slow, affecting the test efficiency.

[0003] For example, application number: CN201210041295.8 discloses an injection mold, including a panel, a flange, a nozzle, an A plate, a front mold core, a sprue material, a rear mold core, a B plate, a return pin, an ejector panel, an ejector bottom plate, a bottom plate, a garbage nail and a sprue needle, wherein the panel is fixedly connected to the A plate by screws, and the front mold core is fixedly connected to the A plate. Therefore, this design requires that the entire mold needs to be removed when replacing the front mold core, the nozzle, and the sprue needle, which slows down the disassembly and replacement process and affects the test efficiency.

[0004] Another example is the application number: CN202321395042.0, which discloses an injection mold for shortening the flow channel, including a panel, a sprue plate and an upper mold plate stacked in sequence; a first groove is formed on the side of the sprue plate close to the upper mold plate, a sprue insert is arranged in the first groove, and a first flow channel is formed between the sprue insert and the upper mold plate; the panel is provided with a nozzle, and the fixed part of the nozzle is connected to the panel; the extension part of the nozzle passes through the sprue plate and the sprue insert, and the opening at the top of the extension part of the nozzle is connected to the first flow channel to transport the molten plastic material in the nozzle to the first flow channel. The injection mold also includes a return pin 9, which is sequentially arranged in the fixed part of the nozzle, the sprue plate and the sprue insert, and extends into the first flow channel to hook the solidified plastic material in the first flow channel. With this design, when the nozzle and sprue needle (return needle) need to be replaced, the mold usually needs to be removed from the machine, and then the upper mold core, nozzle, sprue needle, etc. are removed. This replacement speed is slow and affects the test efficiency. Utility Model Content

[0005] In view of this, the utility model aims to overcome the deficiencies of the prior art, and its main purpose is to provide a quick-install upper mold, which can directly replace the nozzle, sprue needle, and upper mold core on the machine. The replacement speed is fast, which is conducive to improving the testing efficiency, thereby overcoming the shortcomings of the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The present application provides a quick-install upper mold, comprising a panel, a nozzle plate, an upper mold plate, and an upper mold core arranged in sequence from top to bottom, wherein the nozzle and the panel are provided with nozzle needles;

[0008] A first mounting seat is disposed on the nozzle plate, and the first mounting seat presses the nozzle and the nozzle needle tightly against the panel;

[0009] The second mounting seat is arranged on the upper mold plate; the second mounting seat is penetrated by a first mounting groove; the flow channel plate is arranged in the first mounting groove, and the flow channel plate is located at the back of the upper mold core;

[0010] The injection port of the nozzle passes through the first avoidance port on the first mounting seat and the second avoidance port on the flow channel plate, and the injection port is connected to the flow channel on the back of the upper mold core;

[0011] The flow channel is connected to a plurality of injection holes, and the nozzle needle can be inserted into the corresponding injection hole.

[0012] Preferably, the nozzle needles on the left and right sides of the nozzle are arranged on a first mounting block, and the first mounting block is embedded in the second mounting groove of the panel.

[0013] Preferably, the nozzle is provided with a second mounting member, and the nozzle is provided with the sprue needle, and the second mounting member fixes the sprue needle to the nozzle.

[0014] Preferably, the cross-sections of the first mounting block and the second mounting groove are T-shaped or basin-shaped.

[0015] Preferably, the transverse cross-section of the first mounting seat is T-shaped or basin-shaped, and a third mounting groove adapted to the first mounting seat is formed on the corresponding water inlet plate; the transverse cross-section of the second mounting seat is T-shaped or basin-shaped, and a fourth mounting groove adapted to the second mounting seat is formed on the corresponding upper template.

[0016] Preferably, the lower end of the nozzle needle has a truncated cone structure; the truncated cone structure can be inserted into the injection hole and extrude the injection plastic in the injection hole.

[0017] Preferably, the flow channel plate is penetrated with a heating tube, and the heating tube is distributed on the left and right sides of the second avoidance opening.

[0018] The present application provides an injection mold, comprising a quick-install upper mold and a lower mold that can be closed with the quick-install upper mold; the lower mold comprises a lower mold plate, a mounting plate, a mold base plate, and a lower mold core arranged in the lower mold plate; limiting blocks are arranged on the front and rear sides of the upper mold plate; the limiting blocks can be inserted into the limiting grooves arranged on the lower mold plate, and can squeeze the lower mold core inward.

[0019] Preferably, the lower mold core includes a first lower mold core, a second lower mold core, and a third lower mold core; the first lower mold core and the third lower mold core can move toward the second lower mold core.

[0020] Preferably, the first lower die core and the third lower die core can be respectively squeezed obliquely inward by the corresponding limiting blocks, and the inner side surface of the limiting blocks is provided with textures, and lubricating oil is contained in the textures.

[0021] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that the present application provides a quick-install upper mold, including a panel, a sprue plate, an upper mold plate, and an upper mold core arranged in sequence from top to bottom. Among them, the nozzle and the panel are provided with a sprue needle; the first mounting seat is arranged on the sprue plate, and the first mounting seat presses the nozzle and the sprue needle onto the panel. The second mounting seat is arranged on the upper mold plate; the flow channel plate is arranged in the first mounting groove of the second mounting seat, and the flow channel plate is located on the back of the upper mold core. The injection port of the nozzle passes through the first avoidance port on the first mounting seat and the second avoidance port on the flow channel plate, and the injection port is connected to the flow channel on the back of the upper mold core. The flow channel is connected to a number of injection holes, and the sprue needle can be inserted into the corresponding injection hole, and the injection plastic can be extruded from the injection hole.

[0022] When replacing the nozzle and sprue needle on the machine, remove the upper mold core, runner plate, second mounting seat and first mounting seat in sequence. When disassembling to the first mounting seat, the sprue needle and nozzle are exposed from the bottom of the mold base, so that the nozzle and sprue needle can be replaced directly. Therefore, the nozzle and sprue needle can be replaced very conveniently and efficiently on the mold machine, which is conducive to improving the testing efficiency of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the upper mold decomposition of an embodiment of the utility model.

[0024] Figure 2 It is an embodiment of the utility model Figure 1 Schematic diagram from another angle.

[0025] Figure 3 It is a schematic diagram of an upper mold of an embodiment of the utility model.

[0026] Figure 4It is the upper mold (mold base) part structure of the embodiment of the utility model.

[0027] Figure 5 It is a schematic structural diagram of the upper mold part of an embodiment of the utility model.

[0028] Figure 6 It is an embodiment of the utility model Figure 5 Schematic diagram of some structures.

[0029] Figure 7 It is a schematic diagram of an injection mold of an embodiment of the utility model.

[0030] Figure 8 It is a schematic diagram of the lower mold of an embodiment of the utility model.

[0031] Description of the accompanying drawings:

[0032] 10. Upper mold; 110. Panel; 111. Gate plate; 112. Third mounting groove; 113. First mounting seat; 114. First avoidance; 115. Upper template; 116. Fourth mounting groove; 117. Second mounting groove; 118. Flange; 119. Limit block; 120. Nozzle; 121. Second mounting piece; 122. First mounting block; 123. Gate needle; 124. Cone structure; 130. Second mounting seat; 131. First mounting groove; 132. Runner plate; 133. Second avoidance; 134. Heating tube; 140. Upper mold core; 141. Runner; 142. Injection hole; 20. Lower mold; 21. Lower template; 22. Limit groove; 23. Mounting plate; 24. Die base plate; 25. First lower mold core; 26. Second lower mold core; 27. Third lower mold core. DETAILED DESCRIPTION

[0033] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0034] Please refer to Figures 1 to 8 As shown, it shows the specific structure of the preferred embodiment of the utility model, which is a quick-install upper mold 10.

[0035] Among them, when replacing the nozzle 120 and the sprue needle 123 on the machine, the upper mold core 140, the runner plate 132, the second mounting seat 130, and the first mounting seat 113 are removed in sequence. When the first mounting seat 113 is disassembled, the sprue needle 123 and the nozzle 120 are exposed from the bottom of the mold base. In this way, the nozzle 120 and the sprue needle 123 can be replaced conveniently and efficiently directly on the machine, which is conducive to improving the testing efficiency of the mold.

[0036] The present application provides a quick-install upper mold 10, including a panel 110, a nozzle plate 111, an upper mold plate 115, and an upper mold core 140 arranged in sequence from top to bottom, the nozzle 120 and the panel 110 are provided with a nozzle needle 123; a first mounting seat 113 is arranged on the nozzle plate 111, and the first mounting seat 113 presses the nozzle 120 and the nozzle needle 123 on the panel 110; a second mounting seat 130 is arranged on the upper mold plate 115; and a second mounting seat 130 is provided on the second mounting seat 130. There is a first mounting groove 131; a flow channel plate 132 is arranged in the first mounting groove 131, and the flow channel plate 132 is located at the back of the upper mold core 140; the injection port of the nozzle 120 passes through the first avoidance port 114 on the first mounting seat 113 and the second avoidance port 133 on the flow channel plate 132, and the injection port is connected to the flow channel 141 on the back of the upper mold core 140; the flow channel 141 is connected to a plurality of injection holes 142, and the nozzle needle 123 can be inserted into the corresponding injection hole 142. The panel 110, the nozzle plate 111, the upper mold plate 115, the upper mold core 140, the first mounting seat 113, and the second mounting seat 130 are preferably assembled by screws. The upper mold 10 blank includes a panel 110, a nozzle plate 111, and an upper mold plate 115. During assembly, the nozzle 120 and the panel 110 are provided with a sprue needle 123, and the nozzle 120 is provided on the sprue plate 111. When the first mounting seat 113 is assembled on the panel 110, the first mounting seat 113 presses the nozzle 120 and the sprue needle 123 onto the panel 110, so that the nozzle 120 and the sprue needle 123 can be fixed. Among them, the first avoidance port 114 is adapted to the structure of the nozzle 120 and can fix the nozzle 120. The second mounting seat 130 is provided on the upper template 115, and the flow channel plate 132 is embedded in the first mounting groove 131. Then the second mounting seat 130 is provided on the upper template 115, and then the upper mold core 140 is fixed on the upper template 115 and is tightly connected to the flow channel plate 132. The injection molding material enters from the nozzle 120 and then passes through the flow channel 141 and is sprayed into the cavity from the injection hole 142. After the injection molding is completed, the nozzle needle 123 pushes out the remaining material in the injection hole 142. On the contrary, the nozzle 120 and the nozzle needle 123 are replaced. When replacing the nozzle 120 and the nozzle needle 123 on the machine, the upper mold core 140, the runner plate 132, the second mounting seat 130, and the first mounting seat 113 are removed in sequence. When the first mounting seat 113 is disassembled, the nozzle needle 123 and the nozzle 120 are exposed from the bottom of the mold base, so that the nozzle 120 and the nozzle needle 123 can be directly replaced. Therefore, the nozzle 120 and the nozzle needle 123 can be replaced very conveniently and efficiently on the mold machine, which is conducive to improving the testing efficiency of the mold.The sprue sleeve is also called a nozzle 120, a pouring nozzle, or a sprue filling (English translation: Ingate Sleeve). It is a component of the flow channel 141 that allows the molten plastic material to be injected from the nozzle of the injection molding machine into the interior of the mold. It is used to connect the molding mold and the metal fittings of the injection molding machine.

[0037] Preferably, the nozzle needles 123 on the left and right sides of the nozzle 120 are arranged on the first mounting block 122, and the first mounting block 122 is embedded in the second mounting groove 117 of the panel 110. The nozzle 120 is provided with a second mounting member 121, and the nozzle 120 is provided with the nozzle needle 123, and the second mounting member 121 fixes the nozzle needle 123 to the nozzle 120. The nozzle 120 and the left and right sides of the nozzle 120 are provided with the nozzle needle 123. A plurality of nozzle needles 123 are arranged on the first mounting block 122, and are combined into a nozzle needle 123 module. The second mounting member 121 is ring-shaped, and the nozzle needle 123 is passed through the nozzle 120, and then the second mounting member 121 is fixed to the nozzle 120, and the second mounting member 121 supports the root of the nozzle needle 123, so that the nozzle needle 123 is fixed to the nozzle 120, which is very convenient. The flange 118 is disposed on the panel 110 , and the nozzle 120 is assembled with the flange 118 . When replacing the nozzle 120 , the nozzle 120 can be directly removed from the flange 118 .

[0038] Preferably, the cross-sections of the first mounting block 122 and the second mounting groove 117 are T-shaped or basin-shaped. The first mounting block 122 and the second mounting groove 117 are of matching shapes, and the first mounting block 122 can be directly embedded in the second mounting groove 117. This design is very convenient to assemble and has better assembly accuracy.

[0039] Preferably, the transverse cross section of the first mounting seat 113 is T-shaped or basin-shaped, and the corresponding nozzle plate 111 is formed with a third mounting groove 112 that matches the first mounting seat 113; the transverse cross section of the second mounting seat 130 is T-shaped or basin-shaped, and the corresponding upper template 115 is formed with a fourth mounting groove 116 that matches the second mounting seat 130. The structures of the first mounting seat 113 and the third mounting groove 112 are matched, and the first mounting seat 113 can be accurately embedded in the third mounting groove 112, and it is also very convenient to disassemble and assemble. The structures of the second mounting seat 130 and the fourth mounting groove 116 are matched, and the second mounting seat 130 can be accurately embedded in the fourth mounting groove 116, and it is also very convenient to disassemble and assemble.

[0040] Preferably, the lower end of the nozzle needle 123 has a truncated cone structure 124; the truncated cone structure 124 can be inserted into the injection hole 142 and extrude the injection plastic in the injection hole 142. The truncated cone structure 124 is conducive to exhausting air when the nozzle needle 123 is inserted into the injection hole 142. At the same time, this design can also reduce the contact surface and reduce the wear of the nozzle needle 123.

[0041] Preferably, the flow channel plate 132 is provided with a heating tube 134, which is distributed on the left and right sides of the second avoidance opening 133. The heating tube 134 is preferably an electric heating tube 134. The heating tube 134 is passed through the flow channel plate 132, so that the injection molding material can maintain the temperature and have good fluidity.

[0042] Embodiment 2

[0043] The present application provides an injection mold, including a quick-install upper mold as described above, and a lower mold 20 that can be closed with the quick-install upper mold 10; the lower mold 20 includes a lower mold plate 21, a mounting plate 23, a mold base plate 24, and a lower mold core arranged on the lower mold plate 21; the front and rear sides of the upper mold plate 115 are provided with limit blocks 119; the limit blocks 119 can be inserted into the limit grooves 22 arranged on the lower mold plate 21, and can squeeze the lower mold core inward. The upper mold 10 and the lower mold 20 are closed, so that the upper mold core 140 and the lower mold core are closed together, and a cavity is formed inside after the upper mold core 140 and the lower mold core are closed. The injection molding material is injected into the cavity from the nozzle 120. When the upper mold 10 and the lower mold 20 are molded together, the limit blocks 119 arranged on the front and rear sides of the upper mold plate 115 are inserted into the limit grooves 22 arranged on the lower mold plate 21, and the limit blocks 119 squeeze the lower mold core at the same time.

[0044] Preferably, the lower mold core includes a first lower mold core 25, a second lower mold core 26, and a third lower mold core 27; the first lower mold core 25 and the third lower mold core 27 can move toward the second lower mold core 26. When the mold is closed, the limit block squeezes the first lower mold core 25 and the third lower mold core 27 obliquely inward, which is conducive to ensuring the sealing of the lower mold core during injection molding. At the same time, the first lower mold core 25 and the third lower mold core 27 can be close to or away from the second lower mold core 26, and demoulding is also more convenient. The first lower mold core 25 and the third lower mold core 27 are away from the second lower mold core 26, and the ejector ejects the finished product.

[0045] Preferably, the first lower die core 25 and the third lower die core 27 can be respectively squeezed obliquely inward by the corresponding limit blocks 119, and the inner side of the limit blocks 119 is provided with textures, and lubricating oil is contained in the textures. The lubricating oil in the textures is conducive to reducing friction, reducing the wear of accessories, and increasing the life of the mold.

[0046] To sum up, the design focus of the utility model is that when replacing the nozzle 120 and the sprue needle 123 on the machine, it is only necessary to remove the upper mold core 140, the runner plate 132, the second mounting seat 130, and the first mounting seat 113 in sequence, and the sprue needle 123 and the nozzle 120 are exposed from the bottom of the mold base. In this way, the nozzle 120 and the sprue needle 123 can be directly replaced on the machine, which is beneficial to improving the testing efficiency of the mold.

[0047] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A quick-install upper mold, comprising a panel, a nozzle plate, an upper mold plate, and an upper mold core arranged in sequence from top to bottom, characterized in that: The panel and the nozzle are provided with water nozzle needles; The first mounting seat is arranged on the nozzle plate, and the first mounting seat presses the nozzle and the nozzle needle tightly against the panel; The second mounting seat is arranged on the upper mold plate; the second mounting seat is penetrated by a first mounting groove; the flow channel plate is arranged in the first mounting groove, and the flow channel plate is located at the back of the upper mold core; The injection port of the nozzle passes through the first avoidance port on the first mounting seat and the second avoidance port on the flow channel plate, and the injection port is connected to the flow channel on the back of the upper mold core; The flow channel is connected to a plurality of injection holes, and the nozzle needle can be inserted into the corresponding injection hole.

2. The quick-install upper mold according to claim 1, characterized in that: The nozzle needles on the left and right sides of the nozzle are arranged on a first mounting block, and the first mounting block is embedded in the second mounting groove of the panel.

3. The quick-install upper mold according to claim 2, characterized in that: The nozzle is provided with a second mounting member, and the nozzle is provided with the sprue needle, and the second mounting member fixes the sprue needle to the nozzle.

4. The quick-install upper mold according to claim 2, characterized in that: The cross-sections of the first mounting block and the second mounting groove are T-shaped or basin-shaped.

5. The quick-install upper mold according to claim 1, characterized in that: The transverse cross-section of the first mounting seat is T-shaped or basin-shaped, and a third mounting groove adapted to the first mounting seat is formed on the corresponding water inlet plate; the transverse cross-section of the second mounting seat is T-shaped or basin-shaped, and a fourth mounting groove adapted to the second mounting seat is formed on the corresponding upper template.

6. The quick-install upper mold according to claim 1, characterized in that: The lower end of the nozzle needle has a truncated cone structure; the truncated cone structure can be inserted into the injection hole and extrude the injection material in the injection hole.

7. The quick-install upper mold according to claim 1, characterized in that: The flow channel plate is provided with heating tubes, which are distributed on the left and right sides of the second avoidance opening.

8. An injection mold, characterized in that: It comprises a quick-install upper mold as described in any one of claims 1 to 7, and a lower mold that can be closed with the quick-install upper mold; the lower mold comprises a lower mold plate, a mounting plate, a mold base plate, and a lower mold core arranged in the lower mold plate in sequence; limiting blocks are arranged on the front and rear sides of the upper mold plate; the limiting blocks can be inserted into the limiting grooves arranged on the lower mold plate, and can squeeze the lower mold core inward.

9. An injection mold according to claim 8, characterized in that: The lower mold core includes a first lower mold core, a second lower mold core, and a third lower mold core; the first lower mold core and the third lower mold core can move toward the second lower mold core.

10. An injection mold according to claim 9, characterized in that: The first lower die core and the third lower die core can be respectively squeezed obliquely inward by the corresponding limiting blocks, and the inner side surface of the limiting blocks is provided with textures, and lubricating oil is contained in the textures.

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