Paper bottle mold, paper bottle wet blank forming device and paper bottle hot-pressing shaping device

Abstract

The utility model provides a paper bottle mold, a paper bottle wet blank forming device and a paper bottle hot-pressing shaping device. The paper bottle mold comprises an upper mold, a lower mold and a rear mold, an upper bottle body cavity, an upper bottle mouth cavity communicated with the upper bottle body cavity and an upper rear side channel communicated with the upper bottle body cavity are formed in one end, facing the lower mold, of the upper mold; a lower bottle body cavity, a lower bottle cavity cavity communicated with the lower bottle body cavity and a lower rear side channel communicated with the lower bottle body cavity are formed in one end, facing the upper mold, of the lower mold; the rear mold is arranged on the upper rear side channel in a sliding manner, or the rear mold is arranged on the lower rear side channel in a sliding manner; when the upper mold and the lower mold are closed, the upper bottle cavity and the lower bottle cavity enclose to form a first mold cavity, the upper bottle body cavity and the lower bottle body cavity enclose to form a second mold cavity, and the upper rear side channel and the lower rear side channel enclose to form a discharge cavity; the rear mold is arranged to be matched with the end opening, facing the second mold cavity, of the discharging cavity, and the rear mold is driven by the rear driving device to move to the end opening, facing the second mold cavity, of the discharging cavity to be in clearance fit with the discharging cavity. According to the paper bottle mold disclosed by the utility model, integral forming of a paper bottle wet blank / a paper bottle product can be realized.

Description

Technical Field

[0001] The utility model relates to the field of paper bottle production devices, in particular to a paper bottle mold, a paper bottle wet blank forming device and a paper bottle hot pressing shaping device. Background Art

[0002] With the development of technology, more and more plastic products are replaced by paper products, including the use of paper-plastic bottles instead of plastic bottles. The existing process of paper-plastic bottle products is to prepare the front and back halves of the bottle, and then use an adhesive to combine them. However, the above-mentioned paper-plastic bottle is limited by the processing technology of the joint of the two halves of the bottle and cannot form an integrated closed seamless structure. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a paper bottle mold, which can realize the integrated molding of paper bottle wet blanks / paper bottle products.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A paper bottle mold comprises an upper mold, a lower mold and a rear mold; an upper bottle body cavity, an upper bottle mouth cavity connected to the upper bottle body cavity and an upper rear side channel connected to the upper bottle body cavity are provided at one end of the upper mold facing the lower mold; a lower bottle body cavity, a lower bottle mouth cavity connected to the lower bottle body cavity and a lower rear side channel connected to the lower bottle body cavity are provided at one end of the lower mold facing the upper mold; the rear mold is slidably arranged on the upper rear side channel, or the rear mold is slidably arranged on the lower rear side channel; when the upper mold and the lower mold are closed, the upper bottle mouth cavity and the lower bottle mouth cavity are enclosed to form a first mold cavity, the upper bottle body cavity and the lower bottle body cavity are enclosed to form a second mold cavity, and the upper rear side channel and the lower rear side channel are enclosed to form a discharge cavity; the rear mold is arranged to adapt to the port of the discharge cavity facing the second mold cavity, and the rear mold is driven by a rear driving device to move to the port of the discharge cavity facing the second mold cavity to match the clearance therewith.

[0006] Compared with the prior art, the utility model provides a paper bottle mold, by setting an upper mold, a lower mold and a rear mold, and setting an upper bottle body cavity and an upper bottle mouth cavity on the upper mold, and setting a lower bottle body cavity and a lower bottle mouth cavity on the lower mold, so as to set corresponding structures corresponding to the bottle mouth, bottle body and bottle bottom of the paper bottle. After applying the above-mentioned paper bottle mold to a paper bottle wet blank forming device / paper bottle hot pressing shaping device, seamless one-piece forming of paper bottle wet blank / paper bottle products can be achieved, and the forming efficiency is high, and the wall thickness and drying are uniform in different areas, and the problem that it is not easy to open the mold at the inverted position is effectively solved, so that paper bottle products with stable quality can be produced; the discharge cavity is used to discharge slurry, moisture and steam at different stages of paper mold product production.

[0007] A paper bottle mold comprises an upper mold, a lower mold, a rear mold and a rear driving device; an upper bottle body cavity, an upper bottle mouth connected to the upper bottle body cavity and an upper rear side channel connected to the upper bottle body cavity are provided at one end of the upper mold facing the lower mold; a lower bottle body cavity, a lower bottle mouth connected to the lower bottle body cavity and a lower rear side channel connected to the lower bottle body cavity are provided at one end of the lower mold facing the upper mold; the rear mold is slidably arranged on the upper rear side channel, or the rear mold is slidably arranged on the lower rear side channel; if the rear mold is slidably arranged on the upper rear side channel, the rear mold driving device is arranged on an end of the upper mold away from the upper bottle mouth cavity, or the rear mold driving device is arranged on an upper mold mounting bracket connected to the upper mold, and the output end of the rear driving device is connected to the rear mold The rear mold is arranged to slide on the lower rear channel, and the rear mold driving device is arranged on the end of the lower mold away from the lower bottle mouth cavity, or the rear mold driving device is arranged on the lower mold mounting bracket connected to the lower mold, and the output end of the rear driving device is connected to the end of the rear mold opposite to the second mold cavity; when the upper mold and the lower mold are closed, the upper bottle mouth cavity and the lower bottle mouth cavity are enclosed to form the first mold cavity, the upper bottle body cavity and the lower bottle body cavity are enclosed to form the second mold cavity, and the upper rear channel and the lower rear channel are enclosed to form the discharge cavity; the rear mold is arranged to adapt to the port of the discharge cavity facing the second mold cavity, and the rear mold is driven by the rear driving device to move to the port of the discharge cavity facing the second mold cavity to match the clearance therewith.

[0008] The rear drive device can be arranged on the upper mold mounting bracket or the lower mold mounting bracket of the paper bottle wet blank forming device / paper bottle hot pressing shaping device using the paper bottle mold of the utility model, or the rear drive device is arranged on the upper mold or the lower mold of the paper bottle mold corresponding to the rear mold.

[0009] Furthermore, the lower bottle body cavity, the lower bottle mouth cavity and the upper rear side channel are arranged horizontally; the upper bottle body cavity, the upper bottle mouth cavity and the upper rear side channel are arranged corresponding to the lower bottle body cavity, the lower bottle mouth cavity and the upper rear side channel respectively.

[0010] Furthermore, the upper rear channel is horizontally arranged, and the lower bottle body cavity and the lower bottle mouth cavity are inclined upward toward the upper rear channel; the upper bottle body cavity, the upper bottle mouth cavity and the upper rear channel are arranged corresponding to the lower bottle body cavity, the lower bottle mouth cavity and the upper rear channel respectively.

[0011] The lower bottle body cavity and the lower bottle mouth cavity are arranged in an inclined manner, which has the following beneficial effects:

[0012] (1) During the process of forming the wet paper bottle blank, the lower bottle body cavity and the lower bottle mouth cavity are inclined, so that the pulp first fills the first mold cavity and then fills the second mold cavity upward, and the pulp is absorbed from bottom to top in the first mold cavity, the inner wall of the second mold cavity and the end of the rear mold facing the second mold cavity, thereby ensuring that the pulp is filled thickly;

[0013] (2) During the process of forming the wet paper bottle blank, when the wet paper bottle blank is dehydrated, the moisture in the wet paper bottle blank is concentrated to the first mold cavity port under the action of gravity, so that the moisture is easily sucked out and the dehydration effect is improved;

[0014] (3) During the hot pressing and shaping process of the paper bottle, when the wet paper bottle blank is heated and dried, the moisture is converted into steam and is quickly discharged to the discharge cavity along the guide of the inclined first cavity and the second cavity, thereby improving the drying effect;

[0015] (4) During the hot pressing and shaping process of the paper bottle, the moisture in the wet paper bottle is concentrated at the first cavity port under the action of gravity. Since the thickness of the lower mold located at the first cavity port is relatively thin, the heat conduction effect there is fast, so that the moisture concentrated at the first cavity port can be quickly evaporated, thereby improving the drying efficiency.

[0016] Furthermore, the rear mold is provided with a sliding seat adapted to the rear channel where it is located, and protrusions are provided on both sides of the sliding seat; the rear channel where the rear mold is located is provided with a limiting member above the protrusion, and the limiting member is used to limit the movement range of the protrusion in the vertical direction, and to limit the movement range of the rear mold in the horizontal direction.

[0017] The above arrangement can strengthen the connection strength between the rear mold and the rear channel where it is located, while ensuring that the rear mold reciprocates along the specified moving direction to ensure its forming / shaping effect on the bottom of the paper mold.

[0018] Further, the rear mold is arranged on the upper rear channel, and a protrusion is provided at the bottom of the rear mold; the lower rear channel corresponds to the position when the rear mold moves to the port of the discharge cavity facing the second mold cavity, and a groove is provided to adapt to the protrusion; or, the rear mold is arranged on the lower rear channel, and a protrusion is provided at the top of the rear mold; the upper rear channel corresponds to the position when the rear mold moves to the port of the discharge cavity facing the second mold cavity, and a groove is provided to adapt to the protrusion.

[0019] The arrangement of the protrusions and the slots enables the three molds to cooperate with each other and fit closely together, thereby reducing the gaps between the three molds and improving the fineness of the paper mold.

[0020] Furthermore, one end of the upper bottle body cavity and the lower bottle body cavity close to the rear mold is bent inward to form a guide portion. When the upper mold and the lower mold are molded together, the guide portion is aligned with the outer side of the end surface of the rear mold facing the second mold cavity.

[0021] The above-mentioned arrangement enables the port edge of the second mold cavity close to the discharge cavity and the end face of the rear mold facing the second mold cavity to form a smooth curved surface. On the one hand, it improves the aesthetics of the bottom of the paper bottle product, and on the other hand, it avoids the appearance of right-angled edges at the bottom of the paper bottle product that affect the upright placement of the paper bottle product.

[0022] Furthermore, the edges of the upper bottle body cavity and the upper bottle mouth are provided with a first wedge-shaped protrusion protruding outward, and the edges of the lower bottle body cavity and the lower bottle mouth are provided with a second wedge-shaped protrusion protruding outward; when the upper mold and the lower mold are closed, the first wedge-shaped protrusion and the second wedge-shaped protrusion are engaged.

[0023] When the upper mold and the lower mold are closed, the first wedge-shaped protrusion and the second wedge-shaped protrusion are engaged. On the one hand, the top ends of the two wedge-shaped protrusions are engaged, which can make the closing line of the upper mold and the lower mold as small as possible when the upper mold and the lower mold are closed. Compared with the need to ensure the high flatness of the joining plane of the upper mold and the lower mold, it is relatively easy to set the first wedge-shaped protrusion and the second wedge-shaped protrusion with high flatness. On the other hand, after the first wedge-shaped protrusion and the second wedge-shaped protrusion are engaged, an air flow channel is formed on the outer side of the first wedge-shaped protrusion and the second wedge-shaped protrusion, thereby facilitating negative pressure and blowing operations during the wet blank forming and hot pressing shaping of the paper bottle, thereby improving the efficiency of slurry suction, dehydration, drying and demolding.

[0024] Another object of the utility model is to provide a paper bottle wet blank forming device, comprising a slurry tank, a forming upper mold component, a forming lower mold component and an air source pump body, the forming lower mold component is provided with a lower mold of the above-mentioned paper bottle mold, the lower mold can be movably arranged in the slurry tank, the forming upper mold component can be movably arranged above the slurry tank, the forming upper mold component is provided with an upper mold of the above-mentioned paper bottle mold, the forming lower mold component or the forming upper mold component is provided with a rear mold, and the air source pump body is connected to the forming upper mold component and the forming lower mold component.

[0025] Compared with the prior art, the paper bottle wet blank forming device of the utility model uses a new type of paper bottle mold to prepare paper bottle wet blanks, can realize the one-piece forming of paper mold wet blanks, thereby producing paper mold wet blanks with uniform wall thickness, and adopts the upper mold, the lower mold and the rear mold to close the mold from three directions and negatively pressure absorb the slurry to prepare the paper mold wet blank, and the upper mold, the lower mold and the rear mold are vacuumed from three directions to realize the preliminary dehydration of the paper mold wet blank, and the upper mold, the lower mold and the rear mold are relatively far apart to realize the opening of the paper mold wet blank, which is efficient and quick.

[0026] Another object of the utility model is to provide a paper bottle hot pressing shaping device, comprising a hot pressing upper mold component, a hot pressing lower mold component, a pressure storage type elastic bag body control mechanism and an air source pump body, the hot pressing lower mold component is provided with a lower heating element and the lower mold of the above-mentioned paper bottle mold, the hot pressing upper mold component is arranged opposite to the hot pressing lower mold component, the hot pressing upper mold component is provided with an upper heating element and the upper mold of the above-mentioned paper bottle mold, at least one of the hot pressing lower mold component and the hot pressing upper mold component can move up and down, the hot pressing lower mold component or the hot pressing upper mold component is provided with a rear mold, the pressure storage type elastic bag body control mechanism is used to extend into the first mold cavity and the second mold cavity when the upper mold, the lower mold and the rear mold are closed and apply outward pressure to the wet paper bottle blank; the air source pump body is connected to the hot pressing upper mold component and the hot pressing lower mold component.

[0027] Compared with the prior art, the paper bottle hot pressing and shaping device of the utility model uses a new type of paper bottle mold to perform hot pressing and shaping on the paper bottle wet blank, realizes the integrated hot pressing and shaping of the paper bottle wet blank, makes the outer surface of the paper bottle product smooth, and has high shaping efficiency, can realize mass production of high-quality paper bottle products, and adopts the upper mold, the lower mold and the rear mold to close the mold from three directions, the upper mold, the lower mold and the rear mold to vacuum and heat the paper mold wet blank, and uses the pressure storage type elastic bag control mechanism to cooperate with the paper bottle mold to extrude the paper mold wet blank, thereby accelerating the dehydration speed and improving the dehydration effect, so that the paper mold wet blank mold can be quickly dried and shaped. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the utility model;

[0029] Figure 2 It is an exploded view of the utility model;

[0030] Figure 3 It is a cross-sectional view of the utility model;

[0031] Figure 4 is a schematic diagram of the upper mold;

[0032] Figure 5 is a schematic diagram of the lower mold and the rear mold;

[0033] Figure 6 is a schematic diagram of the rear mold;

[0034] Figure 7 The utility model is a schematic diagram of a paper bottle hot pressing shaping device using the paper bottle mold of the utility model.

[0035] Description of labels:

[0036] Paper bottle mold 1, pressure storage elastic bag body control mechanism 2, hot pressing upper mold component 3, hot pressing lower mold component 4, upper mold a1, upper bottle body cavity a2, upper bottle mouth a3, upper rear side channel a4, upper groove a5, first wedge-shaped protrusion a6, lower mold a7, lower bottle body cavity a8, lower bottle mouth a9, lower rear side channel a10, lower groove a11, second wedge-shaped protrusion a12, rear mold a13, slide seat a14, protrusion a15, protrusion a16, first mold cavity a17, second mold cavity a18, discharge cavity a19, extension cavity a20, guide portion a21, slot a22, limiter a23, limiter block a24. DETAILED DESCRIPTION

[0037] The following describes the implementation of the utility model in conjunction with the accompanying drawings:

[0038] Embodiment 1

[0039] See also Figures 1 to 6The paper bottle mold 1 of this embodiment comprises an upper mold a1, a lower mold a7 and a rear mold a13; an upper bottle body cavity a2, an upper bottle mouth a3 connected to the upper bottle body cavity a2 and an upper rear side channel a4 connected to the upper bottle body cavity a2 are provided at one end of the upper mold a1 facing the lower mold a7; a lower bottle body cavity a8, a lower bottle mouth a9 connected to the lower bottle body cavity a8 and a lower rear side channel a10 connected to the lower bottle body cavity a8 are provided at one end of the lower mold a7 facing the upper mold a1; the rear mold a13 is slidably arranged on the lower rear side channel a10; the upper mold a13 is provided with a lower bottle body cavity a8, a lower bottle mouth a9 connected to the lower bottle body cavity a8 and a lower rear side channel a10 connected to the lower bottle body cavity a8 ... rear mold a13 is provided with a lower bottle body cavity a8, a lower bottle mouth a9 connected to the lower bottle body cavity a8 and a lower rear side channel a10 connected to the lower bottle When the upper mold a1 and the lower mold a7 are closed, the upper bottle mouth cavity a3 and the lower bottle mouth cavity a9 are enclosed to form a first mold cavity a17, the upper bottle body cavity a2 and the lower bottle body cavity a8 are enclosed to form a second mold cavity a18, and the upper rear channel a4 and the lower rear channel a10 are enclosed to form a discharge cavity a19; the rear mold a13 is configured to adapt to the port of the discharge cavity a19 facing the second mold cavity a18, and the rear mold a13 is driven by a rear driving device (not shown in the figure) to move to the port of the discharge cavity a19 facing the second mold cavity a18 to match the clearance therewith.

[0040] In one embodiment, the end surface of the rear mold a13 facing the second mold cavity a18 is a plane.

[0041] In another embodiment, the end face of the rear mold a13 facing the second mold cavity a18 is an arc curved surface, or the middle part of the end face of the rear mold a13 facing the second mold cavity a18 is a plane, and the edge of the plane is an arc curved surface.

[0042] The rear mold a13 adopts the above-mentioned setting method to make the middle part of the bottom of the paper bottle product concave inward. On the one hand, it reduces the contact area between the bottom of the paper bottle product and the placement surface, improves the stability of the bottom of the paper bottle product when it is in a placed state, and on the other hand, it can improve the structural strength of the bottom of the paper bottle product.

[0043] In one embodiment, the lower bottle body cavity a8, the lower bottle mouth a9 and the upper rear side channel a4 are arranged horizontally; the upper bottle body cavity a2, the upper bottle mouth a3 and the upper rear side channel a4 are arranged corresponding to the lower bottle body cavity a8, the lower bottle mouth a9 and the upper rear side channel a4 respectively.

[0044] In another embodiment, the upper rear channel a4 is horizontally arranged, and the lower bottle body cavity a8 and the lower bottle mouth a9 are inclined upward toward the upper rear channel a4; the upper bottle body cavity a2, the upper bottle mouth a3 and the upper rear channel a4 are arranged corresponding to the lower bottle body cavity a8, the lower bottle mouth a9 and the upper rear channel a4 respectively.

[0045] The lower bottle body cavity a8 and the lower bottle mouth cavity a9 are arranged in an inclined manner, which has the following beneficial effects:

[0046] (1) During the process of forming the wet paper bottle blank, since the lower bottle body cavity a8 and the lower bottle mouth cavity a9 are inclined, the pulp first fills the first mold cavity a17 and then fills the second mold cavity a18 upwards, and the pulp is successively absorbed from bottom to top on the inner walls of the first mold cavity a17, the second mold cavity a18 and one end of the rear mold a13 facing the second mold cavity a18, thereby ensuring that the pulp is filled thickly;

[0047] (2) During the process of forming the wet paper bottle blank, when the wet paper bottle blank is dehydrated, the moisture in the wet paper bottle blank is concentrated to the port a17 of the first mold cavity under the action of gravity, so that the moisture is easily sucked out and the dehydration effect is improved;

[0048] (3) During the hot pressing and shaping process of the paper bottle, when the wet paper bottle blank is heated and dried, the moisture is converted into steam and is quickly discharged to the discharge cavity a19 along the guide of the inclined first cavity a17 and the second cavity a18, thereby improving the drying effect;

[0049] (4) During the hot pressing and shaping process of the paper bottle, the moisture in the wet paper bottle blank is concentrated at the port a17 of the first mold cavity under the action of gravity. Since the thickness of the lower mold a7 located at the port a17 of the first mold cavity is relatively thin, the heat conduction effect there is fast, so that the moisture concentrated at the port a17 of the first mold cavity can be quickly evaporated, thereby improving the drying efficiency.

[0050] Specifically, the inclination angles of the lower bottle body cavity a8 and the lower bottle mouth cavity a9 are 10-60°, and the inclination angles of the lower bottle body cavity a8 and the lower bottle mouth cavity a9 are the same.

[0051] If the inclination angle of the lower bottle body cavity a8 and the lower bottle mouth cavity a9 is less than 10°, the inclination angle is not enough, resulting in an insignificant diversion effect on the pulp and water, and the above-mentioned technical effect cannot be achieved; if the inclination angle of the lower bottle body cavity a8 and the lower bottle mouth cavity a9 is greater than 60°, on the one hand, the difficulty of mold processing and mold closing is increased, and on the other hand, the difficulty of demolding is increased.

[0052] Furthermore, the rear mold a13 is provided with a slide seat a14 adapted to the lower rear channel a10, and protrusions a15 are provided on both sides of the slide seat a14; the lower rear channel a10 is located above the protrusion a15 and a limiting member a23 is provided, and the limiting member a23 is used to limit the movement range of the protrusion a15 in the vertical direction, and to limit the movement range of the rear mold a13 in the horizontal direction.

[0053] The above-mentioned arrangement can strengthen the connection strength between the rear mold a13 and the rear channel where it is located, while ensuring that the rear mold a13 reciprocates along the specified moving direction, thereby ensuring its molding / shaping effect on the bottom of the paper mold.

[0054] Specifically, a limit block a24 is provided on the rear side of the lower rear channel a10 to limit the rear mold a13 from leaving the lower rear channel a10, and the output end of the rear driving device passes through the limit block a24 to connect to the rear mold a13.

[0055] Furthermore, the rear mold a13 is arranged on the lower rear channel a10, and a protrusion a16 is provided above the rear mold a13; the upper rear channel a4 corresponds to the position when the rear mold a13 moves to the discharge cavity a19 toward the port of the second cavity a18, and a groove a22 adapted to the protrusion a16 is provided.

[0056] The arrangement of the protrusion a16 and the slot a22 enables the three molds to cooperate with each other and fit closely together, thereby reducing the gaps between the three molds and improving the fineness of the paper mold.

[0057] In other embodiments, the rear mold a13 is slidably set on the upper rear channel a4, and a protrusion a16 is provided under the rear mold a13; the lower rear channel a10 corresponds to the position when the rear mold a13 moves to the discharge cavity a19 facing the port of the second cavity a18, and a slot a22 adapted to the protrusion a16 is provided.

[0058] Specifically, the front end of the upper mold a1 is provided with an upper groove a5 connected to the upper bottle mouth a3, and the front end of the lower mold a7 is provided with a lower groove a11 connected to the lower bottle mouth a9; when the upper mold a1 and the lower mold a7 are molded together, the upper groove a5 and the lower groove a11 enclose to form an extension cavity a20.

[0059] The setting of the extension cavity a20 allows a distance to be left between the first cavity a17 and the end of the paper bottle mold 1, leaving an extension end at the front end of the bottle mouth of the manufactured paper bottle product, which is convenient for subsequent processing and trimming of the bottle mouth of the dried paper bottle product to provide aesthetics of the bottle mouth.

[0060] Furthermore, one end of the upper bottle body cavity a2 and the lower bottle body cavity a8 close to the rear mold a13 is bent inward to form a guide portion a21. When the upper mold a1 and the lower mold a7 are molded together, the guide portion a21 is aligned with the outer side of the end surface of the rear mold a13 facing the second mold cavity a18.

[0061] The above-mentioned arrangement enables the port edge of the second mold cavity a18 close to the discharge cavity a19 and the end face of the rear mold a13 facing the second mold cavity a18 to form a smooth curved surface. On the one hand, it improves the aesthetics of the bottom of the paper bottle product, and on the other hand, it avoids the appearance of right-angled edges at the bottom of the paper bottle product that affect the upright placement of the paper bottle product.

[0062] Furthermore, the edges of the upper bottle body cavity a2 and the upper bottle mouth a3 are provided with a first wedge-shaped protrusion a6 protruding outward, and the edges of the lower bottle body cavity a8 and the lower bottle mouth a9 are provided with a second wedge-shaped protrusion a12 protruding outward; when the upper mold a1 and the lower mold a7 are molded together, the first wedge-shaped protrusion a6 and the second wedge-shaped protrusion a12 are engaged.

[0063] When the upper mold a1 and the lower mold a7 are closed, the first wedge-shaped protrusion a6 and the second wedge-shaped protrusion a12 are engaged. On the one hand, the top ends of the two wedge-shaped protrusions are engaged, which can make the closing line of the upper mold a1 and the lower mold a7 as small as possible when the upper mold a1 and the lower mold a7 are closed. Compared with the need to ensure the high flatness of the joining plane of the upper mold a1 and the lower mold a7, it is relatively easy to set the first wedge-shaped protrusion a6 and the second wedge-shaped protrusion a12 with a high flatness. On the other hand, after the first wedge-shaped protrusion a6 and the second wedge-shaped protrusion a12 are engaged, an air flow channel is formed on the outside of the first wedge-shaped protrusion a6 and the second wedge-shaped protrusion a12, thereby facilitating negative pressure and blowing operations during the wet blank forming and hot pressing forming of the paper bottle, thereby improving the efficiency of slurry suction, dehydration, drying and demolding.

[0064] In this embodiment, the rear drive device is arranged on an upper mold mounting bracket (not shown in the figure) or a lower mold mounting bracket (not shown in the figure) of a paper bottle wet blank forming device / paper bottle hot pressing shaping device using the paper bottle mold 1 of the utility model.

[0065] The rear drive device can be a cylinder or a screw motor.

[0066] Compared with the prior art, the utility model provides a paper bottle mold 1, by setting an upper mold a1, a lower mold a7 and a rear mold a13, and setting an upper bottle body cavity a2 and an upper bottle mouth cavity a3 on the upper mold a1, and setting a lower bottle body cavity a8 and a lower bottle mouth cavity a9 on the lower mold a7, so as to set corresponding structures corresponding to the bottle mouth, bottle body and bottle bottom of the paper bottle. After applying the above-mentioned paper bottle mold 1 to a paper bottle wet blank forming device / paper bottle hot pressing and shaping device, seamless one-piece forming of paper bottle wet blank / paper bottle products can be achieved, and the forming efficiency is high, and the wall thickness and drying in different areas are uniform, and the problem that it is not easy to open the mold at the inverted position is effectively solved, so that paper bottle products with stable output quality can be produced; the discharge cavity a19 is used to discharge slurry, moisture and steam at different stages of paper mold product production.

[0067] Embodiment 2

[0068] This embodiment is another arrangement of the first embodiment, and is different from the first embodiment in that a rear driving device is correspondingly arranged on the upper mold or the lower mold of the rear mold.

[0069] The paper bottle mold of the present embodiment comprises an upper mold, a lower mold, a rear mold and a rear driving device; an upper bottle body cavity, an upper bottle mouth connected to the upper bottle body cavity and an upper rear side channel connected to the upper bottle body cavity are provided at one end of the upper mold facing the lower mold; a lower bottle body cavity, a lower bottle mouth connected to the lower bottle body cavity and a lower rear side channel connected to the lower bottle body cavity are provided at one end of the lower mold facing the upper mold; the rear mold is slidably arranged on the upper rear side channel, or the rear mold is slidably arranged on the lower rear side channel; if the rear mold is slidably arranged on the upper rear side channel, the rear mold driving device is arranged on one end of the upper mold away from the upper bottle mouth cavity, or the rear mold driving device is arranged on an upper mold mounting bracket connected to the upper mold, and the output end of the rear driving device is connected to the upper mold. The rear mold is connected to one end of the rear mold opposite to the second mold cavity; if the rear mold is slidably set on the lower rear side channel, the rear mold driving device is set at the end of the lower mold away from the lower bottle mouth cavity, or the rear mold driving device is set on the lower mold mounting bracket connected to the lower mold, and the output end of the rear driving device is connected to the end of the rear mold opposite to the second mold cavity; when the upper mold and the lower mold are closed, the upper bottle mouth cavity and the lower bottle mouth cavity are enclosed to form the first mold cavity, the upper bottle body cavity and the lower bottle body cavity are enclosed to form the second mold cavity, and the upper rear side channel and the lower rear side channel are enclosed to form the discharge cavity; the rear mold is configured to adapt to the port of the discharge cavity facing the second mold cavity, and the rear mold is driven by the rear driving device to move to the port of the discharge cavity facing the second mold cavity to match the clearance therewith.

[0070] Although the description of the utility model does not show the drawings of this embodiment, this embodiment still belongs to the protection scope of the utility model.

[0071] Embodiment 3

[0072] Another object of the utility model is to provide a paper bottle wet blank forming method, the paper bottle wet blank forming device used in the method comprises a slurry tank, a forming upper mold component, a forming lower mold component and an air source pump body, the forming lower mold component is provided with a lower mold of the above-mentioned paper bottle mold, the lower mold can be movably arranged in the slurry tank, the forming upper mold component can be movably arranged above the slurry tank, the forming upper mold component is provided with an upper mold of the above-mentioned paper bottle mold, the forming lower mold component or the forming upper mold component is provided with a rear mold, and the air source pump body is connected to the forming upper mold component and the forming lower mold component;

[0073] Specifically, the paper bottle wet blank forming device is a prior art device, and except for the paper bottle mold, the rest of the device belongs to the application of the prior art.

[0074] The paper bottle wet blank forming method includes:

[0075] The upper mold is lowered to below the slurry surface and is molded with the lower mold. The upper molding mold component and the lower molding mold component apply negative pressure to the paper bottle mold, so that the pulp is adsorbed into the first mold cavity and the second mold cavity.

[0076] The rear mold moves toward the second mold cavity, so that the pulp is adsorbed onto the end surface of the rear mold facing the second mold cavity;

[0077] When the set slurry absorption time is reached, the paper bottle mold rises and leaves the slurry surface;

[0078] The upper forming mold component and the lower forming mold component keep applying negative pressure to the paper bottle mold to dehydrate the wet paper bottle blank;

[0079] The rear mold blows air and moves away from the second mold cavity to complete the demoulding of the bottom of the wet paper bottle blank;

[0080] The lower mold blows air and moves away from the upper mold, and the upper mold component maintains negative pressure to make the wet paper bottle blank adhere to the upper mold, completing the demoulding of the lower end of the wet paper bottle blank;

[0081] The forming upper mold component is connected with the hot pressing lower mold component, and the upper mold blows air to separate the upper end of the paper bottle wet blank from the upper mold, completing the demoulding of the upper end of the paper bottle wet blank.

[0082] When the set slurry absorption time is reached, the wet paper bottle blank reaches the corresponding thickness.

[0083] Among them, the dehydration process of the wet bottle blank requires a preset dehydration time (to ensure that the wet paper mold blank has a certain amount of moisture for subsequent drying and shaping).

[0084] When the lower mold moves away from the upper mold, the upper mold component applies negative pressure to make the wet paper bottle blank adhere to the upper mold.

[0085] In this embodiment, in order to facilitate the transfer of the paper mold wet blank to the outside of the paper bottle wet blank forming device, the forming upper mold component can be moved horizontally to the outside of the paper bottle wet blank forming device.

[0086] When the upper mold is blown to separate the upper end of the paper bottle wet blank from the upper mold, the paper mold wet blank is attached to the mold of the external equipment.

[0087] Compared with the prior art, the paper bottle wet blank forming method of the utility model uses a new type of paper bottle mold to prepare the paper bottle wet blank, which can realize the one-piece forming of the paper mold wet blank, thereby producing a paper mold wet blank with uniform wall thickness, and adopts the upper mold, the lower mold and the rear mold to close the mold from three directions and negatively pressure adsorb the slurry to prepare the paper mold wet blank, and the upper mold, the lower mold and the rear mold are vacuumed from three directions to realize the preliminary dehydration of the paper mold wet blank, and the upper mold, the lower mold and the rear mold are relatively far apart to realize the opening of the paper mold wet blank, which is efficient and quick.

[0088] Although the description of the utility model does not show the drawings of this embodiment, this embodiment still belongs to the protection scope of the utility model.

[0089] Embodiment 4

[0090] See also Figure 7Another object of the utility model is to provide a paper bottle wet blank shaping method, the paper bottle hot pressing shaping device applied thereto comprises a hot pressing upper mold component 3, a hot pressing lower mold component 4, a pressure storage elastic bag body control mechanism 2 and an air source pump body (not shown in the figure), the hot pressing lower mold component 4 is provided with a lower heating element (not shown in the figure) and the lower mold a7 of the paper bottle mold 1 of the first or second embodiment, the hot pressing upper mold component 3 is arranged in alignment with the hot pressing lower mold component 4, the hot pressing upper mold component 3 is provided with an upper heating element (not shown in the figure) and The upper mold a1, the hot pressing lower mold component 4 and the hot pressing upper mold component 3 of the paper bottle mold 1 of the first or second embodiment can move up and down, and the hot pressing lower mold component 4 or the hot pressing upper mold component 3 is provided with a rear mold a13, and the pressure storage type elastic bag body control mechanism 2 is used to extend into the first mold cavity a17 and the second mold cavity a18 when the upper mold a1, the lower mold a7 and the rear mold a13 are molded together and apply outward pressure to the wet paper bottle blank, and the air source pump body is connected to the hot pressing upper mold component 3 and the hot pressing lower mold component 4;

[0091] Specifically, the paper bottle hot pressing and shaping device is a prior art device, and except for the paper bottle mold 1, the rest of the device is an application of the prior art.

[0092] The wet blank shaping method of paper bottle includes:

[0093] The wet paper mold is located on the hot pressing lower mold component 4 or the hot pressing upper mold component 3. The hot pressing lower mold component 4 and the hot pressing upper mold component 3 move relative to each other so that the upper mold a1 and the lower mold a7 are closed, and the rear mold a13 moves toward the second mold cavity a18.

[0094] The hot pressing upper mold component 3 and the hot pressing lower mold component 4 apply negative pressure and heat to the paper bottle mold 1 to dehydrate the wet paper mold blank;

[0095] The pressure accumulator elastic bag control mechanism 2 works and enters the inside of the paper bottle wet blank to apply outward pressure to the paper bottle wet blank, and the paper bottle wet blank is dehydrated under the squeezing action of the pressure accumulator elastic bag control mechanism 2 and the paper bottle mold 1;

[0096] When the set drying time is reached, the rear mold a13 is blown and moves away from the second mold cavity a18 to complete the demoulding of the bottom of the paper bottle product;

[0097] The upper mold a1 blows air and moves away from the lower mold a7, and the lower mold a7 maintains negative pressure (the paper mold product is located on the lower mold a7), to complete the demoulding of the upper end of the paper bottle product, the lower mold component 4 is hot-pressed to move the paper bottle product to the material receiving device, and the lower mold a7 blows air to complete the demoulding of the lower end of the paper bottle product; or, the lower mold a7 blows air and moves away from the upper mold a1, and the upper mold a1 maintains negative pressure (the paper mold product is located on the upper mold a1), to complete the demoulding of the lower end of the paper bottle product, the upper mold component 3 is hot-pressed to move the paper bottle product to the material receiving device, and the upper mold a1 blows air to complete the demoulding of the upper end of the paper bottle product.

[0098] Compared with the prior art, the paper bottle wet blank shaping method of the utility model uses a new paper bottle mold 1 to perform hot pressing and shaping on the paper bottle wet blank, thereby realizing integrated hot pressing and shaping of the paper bottle wet blank, making the outer surface of the paper bottle product smooth, and having high shaping efficiency, and being able to achieve mass production of high-quality paper bottle products. The upper mold a1, the lower mold a7 and the rear mold a13 are used to close the mold from three directions, and the upper mold a1, the lower mold a7 and the rear mold a13 are used to vacuum and heat the paper mold wet blank, and a pressure-accumulating elastic bag control mechanism 2 is used to cooperate with the paper bottle mold 1 to extrude the paper mold wet blank, thereby accelerating the dehydration speed and improving the dehydration effect, so that the paper mold wet blank mold can be quickly dried and shaped.

[0099] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. Paper bottle mold, characterized in that, It comprises an upper mold, a lower mold and a rear mold; an upper bottle body cavity, an upper bottle mouth connected to the upper bottle body cavity and an upper rear side channel connected to the upper bottle body cavity are arranged at one end of the upper mold facing the lower mold; The lower mold is provided with a lower bottle body cavity, a lower bottle mouth cavity connected to the lower bottle body cavity, and a lower rear side channel connected to the lower bottle body cavity at one end of the lower mold facing the upper mold; The rear mold is slidably arranged on the upper rear channel, or the rear mold is slidably arranged on the lower rear channel; When the upper mold and the lower mold are closed, the upper bottle mouth cavity and the lower bottle mouth cavity are enclosed to form a first mold cavity, the upper bottle body cavity and the lower bottle body cavity are enclosed to form a second mold cavity, and the upper rear side channel and the lower rear side channel are enclosed to form a discharge cavity; The rear mold is configured to fit the port of the discharge cavity toward the second mold cavity, and the rear mold is driven by the rear driving device to move to the port of the discharge cavity toward the second mold cavity to be clearance-matched therewith.

2. Paper bottle mold, characterized in that: It comprises an upper mold, a lower mold, a rear mold and a rear driving device; an upper bottle body cavity, an upper bottle mouth connected to the upper bottle body cavity and an upper rear side channel connected to the upper bottle body cavity are arranged at one end of the upper mold facing the lower mold; The lower mold is provided with a lower bottle body cavity, a lower bottle mouth cavity connected to the lower bottle body cavity, and a lower rear side channel connected to the lower bottle body cavity at one end of the lower mold facing the upper mold; The rear mold is slidably arranged on the upper rear channel, or the rear mold is slidably arranged on the lower rear channel; If the rear mold is slidably arranged on the upper rear channel, the rear mold driving device is arranged at an end of the upper mold away from the upper bottle cavity, or the rear mold driving device is arranged on an upper mold mounting bracket connected to the upper mold, and the output end of the rear driving device is connected to an end of the rear mold opposite to the second mold cavity; If the rear mold is slidably arranged on the lower rear side channel, the rear mold driving device is arranged at an end of the lower mold away from the lower bottle mouth, or the rear mold driving device is arranged on a lower mold mounting bracket connected to the lower mold, and the output end of the rear driving device is connected to an end of the rear mold opposite to the second mold cavity; When the upper mold and the lower mold are closed, the upper bottle mouth cavity and the lower bottle mouth cavity are enclosed to form a first mold cavity, the upper bottle body cavity and the lower bottle body cavity are enclosed to form a second mold cavity, and the upper rear side channel and the lower rear side channel are enclosed to form a discharge cavity; The rear mold is configured to fit the port of the discharge cavity toward the second mold cavity, and the rear mold is driven by the rear driving device to move to the port of the discharge cavity toward the second mold cavity to be clearance-matched therewith.

3. The paper bottle mold according to claim 1 or 2, characterized in that: The lower bottle body cavity, the lower bottle mouth cavity and the upper rear side channel are arranged horizontally; The upper bottle body cavity, the upper bottle mouth cavity and the upper rear side channel are respectively arranged corresponding to the lower bottle body cavity, the lower bottle mouth cavity and the upper rear side channel.

4. The paper bottle mold according to claim 1 or 2, characterized in that: The upper rear channel is arranged horizontally, and the lower bottle body cavity and the lower bottle mouth cavity are inclined upwards toward the upper rear channel; The upper bottle body cavity, the upper bottle mouth cavity and the upper rear side channel are respectively arranged corresponding to the lower bottle body cavity, the lower bottle mouth cavity and the upper rear side channel.

5. The paper bottle mold according to claim 1 or 2, characterized in that: The rear mold is provided with a slide seat adapted to the rear channel where it is located, and protrusions are provided on both sides of the slide seat; The rear channel where the rear mold is located is located above the protruding portion and is provided with a limiting member, which is used to limit the moving range of the protruding portion in the vertical direction and limit the moving range of the rear mold in the horizontal direction.

6. The paper bottle mold according to claim 1 or 2, characterized in that: The rear mold is arranged on the upper rear channel, and a protrusion is arranged below the rear mold; the lower rear channel is provided with a slot adapted to the protrusion at a position corresponding to when the rear mold moves to the port of the discharge cavity toward the second cavity; Alternatively, the rear mold is arranged on the lower rear channel, and a protrusion is provided above the rear mold; the upper rear channel corresponds to the position when the rear mold moves to the discharge cavity toward the port of the second mold cavity and has a slot adapted to the protrusion.

7. The paper bottle mold according to claim 1 or 2, characterized in that: One end of the upper bottle body cavity and the lower bottle body cavity close to the rear mold is bent inward to form a guide portion. When the upper mold and the lower mold are molded together, the guide portion is aligned with the rear mold facing the outer side of the end surface of the second mold cavity.

8. The paper bottle mold according to claim 1 or 2, characterized in that: The upper bottle body cavity and the edge of the upper bottle mouth are provided with a first wedge-shaped protrusion protruding outward, and the lower bottle body cavity and the edge of the lower bottle mouth are provided with a second wedge-shaped protrusion protruding outward; When the upper mold and the lower mold are closed, the first wedge-shaped protrusion and the second wedge-shaped protrusion are engaged.

9. A paper bottle wet blank forming device, comprising a slurry tank, an upper forming mold component, a lower forming mold component and an air source pump body, characterized in that: The molding lower mold component is provided with the lower mold of the paper bottle mold according to any one of claims 1 to 8, and the lower mold is movably arranged in the slurry tank up and down, and the molding upper mold component is movably arranged above the slurry tank up and down, and the molding upper mold component is provided with the upper mold of the paper bottle mold according to any one of claims 1 to 8, and a rear mold is provided on the molding lower mold component or the molding upper mold component, and an air source pump body is connected to the molding upper mold component and the molding lower mold component.

10. A paper bottle hot pressing shaping device, comprising a hot pressing upper die component, a hot pressing lower die component, a pressure storage elastic bag control mechanism and an air source pump body, characterized in that: The hot pressing lower mold component is provided with a lower heating element and the lower mold of the paper bottle mold according to any one of claims 1 to 8, the hot pressing upper mold component is arranged opposite to the hot pressing lower mold component, the hot pressing upper mold component is provided with an upper heating element and the upper mold of the paper bottle mold according to any one of claims 1 to 8, at least one of the hot pressing lower mold component and the hot pressing upper mold component can move up and down, the hot pressing lower mold component or the hot pressing upper mold component is provided with a rear mold, the pressure storage type elastic bag body control mechanism is used to extend into the first mold cavity and the second mold cavity when the upper mold, the lower mold and the rear mold are closed and apply outward pressure to the wet paper bottle blank; the air source pump body is connected to the hot pressing upper mold component and the hot pressing lower mold component.

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