Extrusion molding die of inorganic material vacuum extrusion molding production line

Abstract

The utility model relates to the technical field of extrusion molds, in particular to an inorganic material vacuum extrusion molding production line extrusion molding mold which comprises a mold body and a middle mold body. Wherein a forming cavity is formed in the mold body in a penetrating manner; the middle die body comprises a connecting piece and a plurality of die cores detachably connected to the connecting piece, the connecting piece and the die cores are arranged in the forming cavity, the connecting piece is detachably connected with the die body, and the die cores are used for forming a cavity in the formed hollow plate. The die has the effect of reducing the die cost.

Description

Technical Field

[0001] The present application relates to the technical field of extrusion dies, and in particular to an extrusion molding die for an inorganic material vacuum extrusion molding production line. Background Art

[0002] At present, hollow boards are widely used in packaging, construction, agriculture and other fields due to their advantages such as light weight, high strength, good cushioning and recyclability. In the production process of hollow boards, inorganic materials are usually put into an extruder, which extrudes hot melt, and the hot melt enters the mold for shaping, and then goes through steps such as cooling and cutting to obtain the hollow board.

[0003] Regarding the above-mentioned related technologies: the sizes of the internal cavities of hollow panels of different specifications are different, and the shape of a single mold is often fixed, which leads to the need to design different molds when producing hollow panels of different specifications, which easily leads to an increase in mold costs. Utility Model Content

[0004] In order to reduce mold costs, the present application provides an extrusion molding mold for an inorganic material vacuum extrusion molding production line.

[0005] The present application provides an extrusion molding die for an inorganic material vacuum extrusion molding production line, which adopts the following technical solution:

[0006] An extrusion molding die for an inorganic material vacuum extrusion molding production line, comprising:

[0007] A mold body, wherein a molding cavity is formed through the mold body;

[0008] The middle mold body includes a connecting piece and a plurality of mold cores detachably connected to the connecting piece. The connecting piece and the mold core are respectively arranged in the molding cavity. The connecting piece is detachably connected to the mold body. The mold core is used to form a cavity inside the molded hollow board.

[0009] By adopting the above technical solution, the connecting piece is detachably connected to the mold body, and the mold core is detachably connected to the connecting piece. Therefore, when it is necessary to produce hollow panels of different specifications, the connecting piece and the mold core in the molding cavity can be replaced to form a cavity of corresponding size inside the molded hollow panel to produce hollow panels of corresponding specifications. This is conducive to reducing the possibility of designing different molds each time hollow panels of different specifications are produced, thereby reducing the mold cost to a certain extent.

[0010] Optionally, the mold body includes an upper mold and a lower mold, the upper mold is detachably connected to the lower mold, a feed port is provided on the upper mold, and a discharge port is provided on the lower mold, the feed port is connected with the discharge port to form the molding cavity, and a limiting groove is provided on one side of the lower mold close to the upper mold, and one end of the connecting piece is inserted in the limiting groove and abuts against the upper mold.

[0011] By adopting the above technical solution, when the connector and the mold core need to be replaced, the upper mold and the lower mold are first disassembled, and then the connector is taken out from the limiting groove, so as to facilitate the replacement of the connector and the mold core, and when the connector and the mold core are replaced, the connector is inserted into the limiting groove again, and the upper mold and the lower mold are connected and fixed, so that the upper mold and the connector are in conflict with each other, so as to limit the connector in the limiting groove. At this time, the positions of the connector and the mold core are fixed, so that the mold core is conveniently used to form a cavity of corresponding size inside the formed hollow board, so as to produce a hollow board of corresponding specifications.

[0012] Optionally, the cross-sections of the limiting groove and the connecting member are both non-circular.

[0013] By adopting the above technical solution, the cross-sections of the limiting groove and the connecting piece are non-circular, so that the connecting piece is not easy to rotate in the limiting groove, which is beneficial to improving the stability of the connecting piece and the mold core in the molding cavity.

[0014] Optionally, a connecting ring is provided on the upper mold.

[0015] By adopting the above technical solution and setting the connecting ring, it is convenient for the staff to carry and position the upper mold.

[0016] Optionally, a slide groove is provided on the mold core, the connecting piece passes through the slide groove and contacts the inner wall of the slide groove, and a positioning piece is detachably connected to the mold core, and the positioning piece is used to fix the mold core on the connecting piece.

[0017] By adopting the above technical scheme, when the mold core needs to be fixed on the connecting piece, the connecting piece is first passed through the slide groove to move the mold core to the specified position on the connecting piece, and then the positioning piece is connected to the mold core, so that the position of the mold core on the connecting piece can be fixed by the positioning piece, which helps to reduce the possibility of the mold core moving on the connecting piece due to the action of the hot melt after the hot melt enters the molding cavity, thereby ensuring the quality of the molded hollow board to a certain extent.

[0018] Optionally, a threaded hole is provided on the mold core, the threaded hole is connected to the slide groove, the positioning piece is inserted into the threaded hole and is threadedly connected to the mold core, and one end of the positioning piece passes through the threaded hole and presses against the connecting piece.

[0019] By adopting the above technical solution, when the mold core moves to the designated position on the connecting piece, the positioning piece is inserted into the threaded hole and the positioning piece is threadedly connected to the mold core. At this time, one end of the positioning piece passes through the threaded hole and presses against the connecting piece, so that the friction between the positioning piece and the connecting piece is used to fix the position of the mold core on the connecting piece.

[0020] Optionally, a first limiting rod is detachably connected between adjacent mold cores, and a second limiting rod is detachably connected to the mold core located at the edge among the multiple mold cores, and one end of the second limiting rod away from the mold core abuts against the inner wall of the molding cavity.

[0021] By adopting the above technical solution, the setting of the first limiting rod can limit the adjacent mold cores, so that the distance between the adjacent mold cores is not easily reduced, and the setting of the second limiting rod can limit the mold core located at the edge among the multiple mold cores, so that the distance between the mold core and the inner wall of the molding cavity is not easily reduced, thereby facilitating the fixing of the position of the mold core in the molding cavity, and further reducing the possibility of the mold core moving on the connecting part due to the action of the hot melt.

[0022] Optionally, a sealing gasket is filled between the connecting piece and the inner wall of the slide groove.

[0023] By adopting the above technical solution, the sealing gasket can fill the gap between the connecting piece and the inner wall of the slide groove. On the one hand, it is beneficial to improve the connection stability between the connecting piece and the mold core. On the other hand, it can reduce the possibility of hot melt entering the slide groove, thereby ensuring the quality of the molded hollow plate to a certain extent.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. By detachably connecting the connector to the mold body and detachably connecting the mold core to the connector, both the connector and the mold core can be replaced, so that it is convenient to produce hollow panels of corresponding specifications by replacing the connector and the mold core in the molding cavity, which is beneficial to reduce the mold cost.

[0026] 2. Through the cooperation between the upper mold and the lower mold, the connecting piece can be inserted into the limiting groove and contact with the upper mold, so as to simply complete the fixing of the connecting piece, and the connecting piece can be taken out of the limiting groove by disassembling the upper mold and the lower mold, so as to facilitate the replacement of the connecting piece;

[0027] 3. The setting of the positioning piece makes it difficult for the position of the mold core on the connecting piece to change, which is conducive to reducing the possibility of the mold core moving on the connecting piece due to the action of the hot melt, and further helps to ensure the quality of the molded hollow board;

[0028] 4. Through the cooperation between the first limit rod and the second limit rod, the distance between adjacent mold cores and between the mold core and the inner wall of the molding cavity is not easy to change, so it is convenient to fix the position of the mold core, which is beneficial to reduce the possibility of the mold core moving on the connecting part due to the action of the hot melt. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an extrusion molding die for an inorganic material vacuum extrusion molding production line in an embodiment of the present application.

[0030] Figure 2 It is a side view of an extrusion molding die of an inorganic material vacuum extrusion molding production line in an embodiment of the present application.

[0031] Figure 3 is along Figure 2 Section view along line AA.

[0032] Figure 4 It is a schematic diagram of the structure of the middle model body in the embodiment of the present application.

[0033] Figure 5 is along Figure 4 Sectional view along line BB.

[0034] Figure 6 It is a cross-sectional view of line AA in Example 2 of the present application.

[0035] Description of reference numerals:

[0036] 1. Mold body; 11. Molding cavity; 12. Upper mold; 121. Feed port; 122. Connecting ring; 13. Lower mold; 131. Discharge port; 132. Limiting groove; 2. Middle mold body; 21. Connecting piece; 22. Mold core; 221. Slide groove; 222. Threaded hole; 223. Sealing gasket; 224. Positioning piece; 225. First limiting rod; 226. Second limiting rod; 227. Positioning groove. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-6 This application is described in further detail.

[0038] The embodiment of the present application discloses an extrusion molding die for an inorganic material vacuum extrusion molding production line.

[0039] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] Embodiment 1:

[0041] Reference Figure 1 An extrusion molding die for an inorganic material vacuum extrusion molding production line includes a die body 1 and a middle die body 2. The die body 1 is provided with a molding cavity 11, the middle die body 2 is disposed in the molding cavity 11 and is detachably connected to the die body 1, and the middle die body 2 is used to form a cavity inside the molded hollow board, so that hollow boards of corresponding specifications can be produced by replacing the middle die body 2, thereby helping to reduce the cost of the die.

[0042] Reference Figure 2 and Figure 3 The mold body 1 includes an upper mold 12 and a lower mold 13. The upper mold 12 and the lower mold 13 are detachably connected. In this embodiment, the upper mold 12 and the lower mold 13 are connected by bolts. A feed port 121 is provided on the upper mold 12, and a discharge port 131 is provided on the lower mold 13. The feed port 121 is connected to the discharge port 131 to form a molding cavity 11.

[0043] Reference Figure 3 The lower mold 13 has a limiting groove 132 on one side close to the upper mold 12. Two limiting grooves 132 are provided. The two limiting grooves 132 are arranged opposite to each other, and the cross section of the limiting groove 132 is non-circular. In this embodiment, the cross section of the limiting groove 132 is rectangular.

[0044] The middle mold body 2 includes a connecting member 21 and a plurality of mold cores 22 detachably connected to the connecting member 21. One end of the connecting member 21 is inserted into a limiting groove 132, and the other end of the connecting member 21 is inserted into another limiting groove 132. The portion of the connecting member 21 inserted into the limiting groove 132 is adapted to the shape design of the limiting groove 132, so that the connecting member 21 can fit the inner wall of the limiting groove 132, so that the connecting member 21 is not easy to shake in the limiting groove 132.

[0045] Reference Figure 1 and Figure 3When the connecting member 21 needs to be fixed in the molding cavity 11, the connecting member 21 is first inserted into the limiting groove 132, and then the upper mold 12 and the lower mold 13 are connected and fixed. At this time, the upper mold 12 contacts the connecting member 21 to limit the connecting member 21 in the limiting groove 132, which is conducive to reducing the possibility of the connecting member 21 escaping from the limiting groove 132, and further conducive to improving the stability of the connecting member 21.

[0046] Reference Figure 4 and Figure 5 The core 22 is provided with a slide groove 221, and the core 22 is provided with a threaded hole 222, which is communicated with the slide groove 221. In this embodiment, a sealing gasket 223 is fixedly connected to the inner wall of the slide groove 221, and the threaded hole 222 is provided through the sealing gasket 223.

[0047] The connector 21 can pass through the chute 221, so that it is convenient to install the core mold 22 on the connector 21, and it is convenient to remove the core mold 22 from the connector 21, so that it is convenient to replace the core mold 22. When the connector 21 passes through the chute 221, the sealing gasket 223 is filled between the connector 21 and the inner wall of the chute 221, which is conducive to improving the connection stability between the connector 21 and the core mold 22 on the one hand, and can reduce the possibility of hot melt entering the chute 221 on the other hand, and to a certain extent ensure the quality of the formed hollow board. In other embodiments, the sealing gasket 223 may not be provided, and the connector 21 is directly attached to the inner wall of the chute 221.

[0048] The mold core 22 is detachably connected with a positioning member 224. In this embodiment, the positioning member 224 is a bolt, so that the positioning member 224 can be inserted into the threaded hole 222 and threadedly connected to the mold core 22, and one end of the positioning member 224 can pass through the threaded hole 222 and press against the connecting member 21, thereby facilitating the use of the friction between the positioning member 224 and the connecting member 21 to fix the mold core 22 at a designated position on the connecting member 21.

[0049] It should be noted that, in the present embodiment, after the positioning piece 224 is pressed against the connecting piece 21, the end of the positioning piece 224 away from the connecting piece 21 is flush with the outer surface of the core mold 22, so that it is not easy for a large gap to exist between the positioning piece 224 and the core mold 22, thereby preventing the hot melt from flowing between the positioning piece 224 and the core mold 22, thereby ensuring the quality of the molded hollow board.

[0050] Reference Figure 1 A connecting ring 122 is fixedly connected to the outer wall of the upper mold 12 to facilitate the staff to carry and position the upper mold 12.

[0051] The implementation principle of the extrusion molding die of the inorganic material vacuum extrusion molding production line in the embodiment of the present application is as follows: when a hollow plate needs to be produced, the corresponding mold core 22 is first selected according to the specifications of the hollow plate to be produced, and the mold core 22 is fixed at a specified position on the connecting member 21. Then, the connecting member 21 is inserted into the limiting groove 132, and the upper mold 12 is connected and fixed with the lower mold 13, so that the position of the connecting member 21 is fixed, thereby completing the fixation of the mold core 22.

[0052] Finally, the hot melt is injected into the molding cavity 11 from the feed port 121 by an extruder, and the hot melt passes through the mold core 22 and then leaves the molding cavity 11 from the discharge port 131. At this point, the hot melt is shaped, and then after cooling and cutting, the production of the hollow board can be completed.

[0053] It should be noted that the specific technical solutions adopted in the above-mentioned cooling and cutting steps are conventional technical means for those skilled in the art, so they will not be described in detail in the embodiments of this application.

[0054] In the embodiment of the present application, the size of the internal cavity of the formed hollow board can be adjusted by replacing the mold core 22. When the mold core 22 used is smaller in size, the internal cavity of the formed hollow board is also smaller, which makes the local rigidity of the hollow board higher, the overall weight increases, and the production cost increases; and when the mold core 22 used is larger in size, the internal cavity of the formed hollow board is also larger, which makes the overall structural strength and rigidity of the hollow board better, the overall weight is reduced, and the production cost is reduced.

[0055] Embodiment 2:

[0056] Reference Figure 6 The difference between this embodiment and embodiment 1 is that a first limiting rod 225 is detachably connected between adjacent mold cores 22, and a second limiting rod 226 is detachably connected to the mold core 22 located at the edge among the multiple mold cores 22.

[0057] Two positioning grooves 227 are provided on each mold core 22, and the positioning grooves 227 between adjacent mold cores 22 are arranged relatively to each other, and the first limiting rod 225 and the second limiting rod 226 are respectively adapted to the design of the positioning groove 227, so that the first limiting rod 225 can be inserted into the positioning groove 227 and fit with the inner wall of the positioning groove 227, and the second limiting rod 226 can be inserted into the positioning groove 227 and fit with the inner wall of the positioning groove 227.

[0058] Reference Figure 1 and Figure 6When the connecting piece 21 is fixed in the molding cavity 11, the first limiting rod 225 is located between two adjacent mold cores 22, and the end of the second limiting rod 226 away from the mold core 22 abuts against the inner wall of the molding cavity 11, so that the first limiting rod 225 and the second limiting rod 226 cooperate with each other to fix the position of the mold core 22, thereby reducing the possibility of the mold core 22 being affected by the hot melt and moving on the connecting piece 21.

[0059] In this embodiment, the first limiting rod 225 and the second limiting rod 226 are both in contact with the connecting member 21, thereby helping to avoid a gap between the connecting member 21 and the first limiting rod 225 or the second limiting rod 226, and to a certain extent reducing the possibility of hot melt flowing into between the connecting member 21 and the first limiting rod 225 or the second limiting rod 226, thereby ensuring the quality of the formed hollow plate.

[0060] It should be noted that according to the different spacings between adjacent mold cores 22 and the different spacings between the mold core 22 located at the edge among the multiple mold cores 22 and the inner wall of the molding cavity 11, the lengths of the first limiting rod 225 and the second limiting rod 226 can be adaptively adjusted so that the first limiting rod 225 and the second limiting rod 226 can stably fix the position of the mold core 22.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An extrusion molding die for an inorganic material vacuum extrusion molding production line, characterized in that: include: A mold body (1), wherein a molding cavity (11) is formed through the mold body (1); The middle mold body (2) comprises a connecting piece (21) and a plurality of mold cores (22) detachably connected to the connecting piece (21); the connecting piece (21) and the mold cores (22) are respectively arranged in the molding cavity (11); the connecting piece (21) is detachably connected to the mold body (1); and the mold cores (22) are used to form a cavity inside the molded hollow plate.

2. The extrusion molding die of the inorganic material vacuum extrusion molding production line according to claim 1, characterized in that: The mold body (1) comprises an upper mold (12) and a lower mold (13), the upper mold (12) and the lower mold (13) are detachably connected, the upper mold (12) is provided with a feed port (121), the lower mold (13) is provided with a discharge port (131), the feed port (121) is communicated with the discharge port (131) to form the molding cavity (11), and a limiting groove (132) is provided on a side of the lower mold (13) close to the upper mold (12), one end of the connecting member (21) is inserted into the limiting groove (132) and contacts the upper mold (12).

3. The extrusion molding die of the inorganic material vacuum extrusion molding production line according to claim 2, characterized in that: The cross-sections of the limiting groove (132) and the connecting member (21) are both non-circular.

4. The extrusion molding die of the inorganic material vacuum extrusion molding production line according to claim 2, characterized in that: The upper mold (12) is provided with a connecting ring (122).

5. The extrusion molding die of the inorganic material vacuum extrusion molding production line according to claim 1, characterized in that: The mold core (22) is provided with a slide groove (221), the connecting piece (21) passes through the slide groove (221) and contacts the inner wall of the slide groove (221), and the mold core (22) is detachably connected with a positioning piece (224), and the positioning piece (224) is used to fix the mold core (22) on the connecting piece (21).

6. The extrusion molding die of the inorganic material vacuum extrusion molding production line according to claim 5, characterized in that: The mold core (22) is provided with a threaded hole (222), the threaded hole (222) is communicated with the slide groove (221), the positioning member (224) is inserted into the threaded hole (222) and is threadedly connected to the mold core (22), and one end of the positioning member (224) passes through the threaded hole (222) and is tightly pressed against the connecting member (21).

7. The extrusion molding die of the inorganic material vacuum extrusion molding production line according to claim 5, characterized in that: A first limiting rod (225) is detachably connected between adjacent mold cores (22), and a second limiting rod (226) is detachably connected to the mold core (22) located at the edge of the plurality of mold cores (22), wherein one end of the second limiting rod (226) away from the mold core (22) contacts the inner wall of the molding cavity (11).

8. The extrusion molding die of the inorganic material vacuum extrusion molding production line according to claim 5, characterized in that: A sealing gasket (223) is filled between the connecting piece (21) and the inner wall of the sliding groove (221).

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