Mold for injection molding flowerpot

Abstract

The mold comprises a fixed mold and a movable mold, a fixed mold core and a movable mold core are arranged on the fixed mold and the movable mold correspondingly, a first cooling groove and a second cooling groove are formed in the fixed mold core and the movable mold core, and a plurality of cooling water holes are formed in the bottom of the first cooling groove and the bottom of the second cooling groove correspondingly; the cooling water hole is connected with a first cooling channel and a second cooling channel, and the fixed mold and the movable mold are each provided with a cooling water channel connected with the first cooling groove and the second cooling groove. The first cooling grooves and the second cooling grooves are formed in the fixed mold core and the movable mold core, the first cooling channels and the second cooling channels are connected through the first cooling grooves and the second cooling grooves, and meanwhile the cooling water channels are formed in the fixed mold and the movable mold; cooling water conveyed on the fixed mold and the movable mold can be evenly conveyed into the fixed mold core and the movable mold core through the first cooling groove and the second cooling groove, the cooling efficiency is guaranteed, and the product forming quality is improved.

Description

Technical Field

[0001] This application relates to the technical field of molds, and in particular to a mold for injection-molding flower pots. Background Art

[0002] Most flower pots are made by injection molding. Molten plastic is injected into the cavity of the mold, heated evenly for a period of time, and then cooled to form a flower pot.

[0003] At present, most flower pots on the market are frustum-shaped shells with a larger upper part and a smaller lower part. The cavity of the mold is similar to the structure of the flower pot and adopts a frustum shape. For example, a Chinese patent with the publication number CN214562608U and the publication date of November 2, 2021 discloses a flower pot injection mold, which includes an upper mold assembly and a lower mold assembly. The upper mold assembly includes an upper first cooling plate and an upper template arranged in sequence from top to bottom. An upper core is arranged on the upper template. The lower mold assembly includes a lower template and a lower bottom plate arranged in sequence from top to bottom. A lower core is arranged on the lower template. The lower core extends into the upper core, and a cavity is formed between the upper core and the lower core. A pouring tube is arranged at the center of the upper first cooling plate, and the discharge port of the pouring tube extends to the cavity. It also includes an ejection assembly that can eject the injection-molded flower pot from the lower core. The ejection assembly includes an ejection seat, an ejector rod, and a return spring. The ejection seat is slidably arranged on the lower bottom plate in the vertical direction. The ejector rod is arranged in the vertical direction. One end of the ejector rod is fixedly connected to the ejection seat, and the other end of the ejector rod passes through the lower core and extends to the cavity. The return spring drives the ejection seat and the ejector rod to slide and reset.

[0004] The above solution has a compact structure and saves installation space. However, the frustum-shaped core will cause the internal cooling water channels to be unable to be evenly arranged, resulting in affecting the cooling efficiency and reducing the production efficiency. Therefore, the inventor believes that a mold for injection-molding flower pots with high cooling efficiency should be designed. Summary of the Utility Model

[0005] This application provides a mold for injection-molding flower pots with high cooling efficiency.

[0006] The mold for injection-molding flower pots provided by this application adopts the following technical solution:

[0007] An injection molding mold for flower pots includes a fixed mold and a movable mold. A fixed mold core and a movable mold core are respectively arranged on the fixed mold and the movable mold. Cavities and cores are respectively arranged on the sides of the fixed mold core and the movable mold core that are close to each other. The core can be inserted into the cavity. First cooling grooves and second cooling grooves are respectively arranged on the sides of the fixed mold core and the movable mold core that are far from each other. A plurality of cooling water holes are arranged at the bottoms of the first cooling groove and the second cooling groove. A first cooling channel and a second cooling channel are connected to the cooling water holes. The first cooling channel and the second cooling channel are evenly distributed inside the fixed mold core and the movable mold core. Cooling water channels are arranged on both the fixed mold and the movable mold, and the cooling water channels are connected to the first cooling groove and the second cooling groove.

[0008] Preferably, the fixed mold includes a top plate and a first cooling plate. A feed port is arranged on the top plate. The cavity is connected to the first cooling plate and the cooling water channel is arranged inside the first cooling plate. An inlet and an outlet are arranged on the side surface of the first cooling plate. The inlet and the outlet are respectively connected to both ends of the cooling water channel. The middle part of the cooling water channel is disconnected and the disconnected part is connected to the first cooling groove.

[0009] Preferably, the first cooling groove is an arc-shaped groove and there are multiple first cooling grooves. The cavity is a frustum-shaped groove. The first cooling channel is a plurality of straight holes and the first cooling channel is evenly arranged along the circumferential direction of the cavity.

[0010] Preferably, a plurality of first forming protrusions are arranged on the side of the first cooling plate close to the fixed mold core, and the protrusions can be in contact with the movable mold core.

[0011] Preferably, the movable mold includes a bottom plate and a second cooling plate. The movable mold core is connected to the second cooling plate and the cooling water channel is arranged inside the second cooling plate. The middle part of the cooling water channel is disconnected and the disconnected part is connected to the second cooling groove. The second cooling groove is a plurality of annular grooves with different diameters. The second cooling channel is a straight hole and the second cooling channel is evenly arranged along the circumferential direction inside the core.

[0012] Preferably, a pressing ring is arranged on the movable mold core. The pressing ring is located outside the core. A second forming protrusion is arranged between the movable mold core and the pressing ring, and the height of the second forming protrusion exceeds that of the pressing ring.

[0013] Preferably, the lower end of the fixed mold core can be inserted into the movable mold core, and a plurality of heat dissipation plates are evenly arranged on the circumferential side surface of the fixed mold core.

[0014] Preferably, through cooling water channels are arranged on both the first cooling plate and the second cooling plate.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. In this application, by providing a first cooling groove and a second cooling groove on the fixed mold core and the moving mold core, and connecting a plurality of first cooling channels and second cooling channels through the first cooling groove and the second cooling groove, and at the same time providing cooling water channels on the fixed mold and the moving mold and connecting them with the first cooling groove and the second cooling groove, the cooling water transported on the fixed mold and the moving mold can be evenly transported into the fixed mold core and the moving mold core through the first cooling groove and the second cooling groove, ensuring the cooling efficiency and improving the product forming quality.

[0017] 2. By providing a first cooling plate on the fixed mold and arranging a disconnected cooling water channel inside the first cooling plate, and connecting the middle parts of the cooling channels through the first cooling groove, it is possible to supply water to multiple first cooling channels in the first cooling groove through one cooling water channel, and at the same time ensure the unidirectional flow of the cooling water, improving the cooling efficiency.

[0018] 3. By providing a first forming protrusion connected to the moving mold core inside the first cooling plate, it is convenient for the formation of the water leakage holes at the bottom of the flowerpot; by providing a pressing ring on the moving mold core and a second forming protrusion between the pressing ring and the moving mold core, it is convenient for the formation of the side of the flowerpot, facilitating the work of technicians. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural view of the mold for injection molding a flowerpot in a preferred embodiment of this application.

[0020] Figure 2 It is an exploded view of the mold for injection molding a flowerpot in a preferred embodiment of this application.

[0021] Figure 3 It is an exploded view of the mold for injection molding a flowerpot from another perspective in a preferred embodiment of this application.

[0022] Figure 4 It is an exploded view of the fixed mold in a preferred embodiment of this application.

[0023] Figure 5 It is an exploded view of the fixed mold from another perspective in a preferred embodiment of this application.

[0024] Figure 6 It is a sectional view of the first cooling plate in a preferred embodiment of this application.

[0025] Figure 7 It is a schematic structural view of the fixed mold core in a preferred embodiment of this application.

[0026] Figure 8 It is a sectional view of the fixed mold core in a preferred embodiment of this application.

[0027] Figure 9 It is an exploded view of the moving mold in a preferred embodiment of this application.

[0028] Figure 10 It is a schematic structural diagram of a moving die core in a preferred embodiment of the present application.

[0029] Figure 11 It is a sectional view of the moving die core in a preferred embodiment of the present application.

[0030] Figure 12 It is a sectional view of another position of the moving die core in a preferred embodiment of the present application.

[0031] Explanation of reference numerals: 1, fixed die; 101, top plate; 101a, feed port; 102, first cooling plate; 102a, first forming protrusion; 2, moving die; 201, bottom plate; 202, second cooling plate; 3, fixed die core; 301, cavity; 302, first cooling channel; 303, heat dissipation plate; 4, moving die core; 401, core; 402, second cooling channel; 403, pressing ring; 404, second forming protrusion; 5, first cooling groove; 6, second cooling groove; 7, cooling water channel; 701, water inlet; 702, water outlet. Detailed Description of the Specific Embodiment

[0032] The following further describes the present application in detail with reference to the accompanying drawings.

[0033] An embodiment of the present application discloses a mold for injection molding flowerpots.

[0034] Referring to Figures 1 to 12 , a mold for injection molding flowerpots includes a fixed die 1 and a moving die 2. A fixed die core 3 and a moving die core 4 are respectively arranged on the fixed die 1 and the moving die 2. Cavities 301 and cores 401 are respectively arranged on the sides of the fixed die core 3 and the moving die core 4 that are close to each other. The core 401 can be inserted into the cavity 301. First cooling grooves 5 and second cooling grooves 6 are respectively arranged on the sides of the fixed die core 3 and the moving die core 4 that are far from each other. A plurality of cooling water holes are arranged at the bottoms of the first cooling grooves 5 and the second cooling grooves 6. A first cooling channel 302 and a second cooling channel 402 are connected to the cooling water holes. The first cooling channel 302 and the second cooling channel 402 are evenly distributed inside the fixed die core 3 and the moving die core 4. Cooling water channels 7 are arranged on both the fixed die 1 and the moving die 2. The cooling water channels 7 are connected to the first cooling grooves 5 and the second cooling grooves 6.

[0035] Referring to Figures 1 to 8, the fixed mold 1 includes a top plate 101 and a first cooling plate 102. There is a feed inlet 101a on the top plate 101. A cavity 301 is connected to the first cooling plate 102. On the side of the first cooling plate 102 close to the fixed mold core 3, there are multiple first forming protrusions 102a, and the protrusions can be in contact with the moving mold core 4. A cooling water channel 7 is arranged inside the first cooling plate 102. An inlet 701 and an outlet 702 are arranged on the side surface of the first cooling plate 102. The inlet 701 and the outlet 702 are respectively connected to both ends of the cooling water channel 7. The middle part of the cooling water channel 7 is disconnected, and the disconnected part is connected to the first cooling groove 5. Specifically, the first cooling groove 5 is an arc-shaped groove and there are multiple first cooling grooves 5. The cavity 301 is a frustum-shaped groove. The first cooling channels 302 are multiple straight holes and the first cooling channels 302 are evenly arranged along the circumferential direction of the cavity 301.

[0036] Referring to Figures 9 to 12 , the moving mold 2 includes a bottom plate 201 and a second cooling plate 202. A moving mold core 4 is connected to the second cooling plate 202. A cooling water channel 7 is arranged inside the second cooling plate 202. The middle part of the cooling water channel 7 is disconnected, and the disconnected part is connected to the second cooling groove 6. The second cooling groove 6 is multiple annular grooves with different diameters. The second cooling channels 402 are straight holes and the second cooling channels 402 are evenly arranged along the circumferential direction inside the core 401.

[0037] Referring to Figure 4 and Figure 9 , a pressing ring 403 is arranged on the moving mold core 4. The pressing ring 403 is located outside the core 401. A second forming protrusion 404 is arranged between the moving mold core 4 and the pressing ring 403. The height of the second forming protrusion 404 exceeds that of the pressing ring 403, which is convenient for the forming of the side of the flowerpot. The lower end of the fixed mold core 3 can be inserted into the moving mold core 4. Multiple heat dissipation plates 303 are evenly arranged along the circumferential direction on the side surface of the fixed mold core 3. At the same time, through holes for cooling water channels are arranged on both the first cooling plate 102 and the second cooling plate 202, which can improve the cooling efficiency and ensure the processing efficiency.

[0038] The implementation principle is as follows: In this application, by arranging the first cooling groove 5 and the second cooling groove 6 on the fixed mold core 3 and the moving mold core 4, and connecting multiple first cooling channels 302 and second cooling channels 402 through the first cooling groove 5 and the second cooling groove 6. At the same time, cooling water channels 7 are arranged on the fixed mold 1 and the moving mold 2, and the cooling water channels 7 are connected to the first cooling groove 5 and the second cooling groove 6, so that the cooling water transported on the fixed mold 1 and the moving mold 2 can be evenly transported to the inside of the fixed mold core 3 and the moving mold core 4 through the first cooling groove 5 and the second cooling groove 6, ensuring the cooling efficiency and improving the product forming quality.

[0039] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A mold for injection molding a flower pot, characterized in that: The invention comprises a fixed mold (1) and a movable mold (2), wherein the fixed mold (1) and the movable mold (2) are respectively provided with a fixed mold core (3) and a movable mold core (4), wherein a mold cavity (301) and a mold core (401) are respectively provided on the sides of the fixed mold core (3) and the movable mold core (4) close to each other, and the mold core (401) can be inserted into the mold cavity (301), and a first cooling groove (5) and a second cooling groove (6) are respectively provided on the sides of the fixed mold core (3) and the movable mold core (4) away from each other, wherein the first cooling groove (5) and the second cooling groove (6) are respectively provided on the sides of the fixed mold core (3) and the movable mold core (4) away from each other. A plurality of cooling water holes are provided at the bottom of the cooling groove (5) and the second cooling groove (6), and the cooling water holes are connected to the first cooling channel (302) and the second cooling channel (402). The first cooling channel (302) and the second cooling channel (402) are evenly distributed inside the fixed mold core (3) and the movable mold core (4). The fixed mold (1) and the movable mold (2) are both provided with cooling water channels (7), and the cooling water channels (7) are connected to the first cooling groove (5) and the second cooling groove (6).

2. The mold for injection molding a flower pot according to claim 1, characterized in that: The fixed mold (1) comprises a top plate (101) and a first cooling plate (102), the top plate (101) is provided with a feed port (101a), the first cooling plate (102) is connected to the mold cavity (301) and the first cooling plate (102) is provided with the cooling water channel (7), the side of the first cooling plate (102) is provided with a water inlet (701) and a water outlet (702), the water inlet (701) and the water outlet (702) are respectively connected to two ends of the cooling water channel (7), the middle part of the cooling water channel (7) is disconnected and the disconnected part is connected to the first cooling groove (5).

3. The mold for injection molding a flower pot according to claim 2, characterized in that: The first cooling groove (5) is an arc-shaped groove and there are multiple first cooling grooves (5), the mold cavity (301) is a truncated cone-shaped groove, the first cooling channel (302) is a plurality of straight holes and the first cooling channels (302) are evenly arranged along the circumference of the mold cavity (301).

4. The mold for injection molding a flower pot according to claim 2, characterized in that: A plurality of first molding protrusions (102a) are provided on one side of the first cooling plate (102) close to the fixed mold core (3), and the protrusions are capable of connecting with the movable mold core (4).

5. The mold for injection molding a flower pot according to claim 2, characterized in that: The movable mold (2) comprises a bottom plate (201) and a second cooling plate (202), the movable mold core (4) is connected to the second cooling plate (202) and the cooling water channel (7) is arranged in the second cooling plate (202), the middle part of the cooling water channel (7) is disconnected and the disconnected part is connected to the second cooling groove (6), the second cooling groove (6) is a plurality of annular grooves with different diameters, the second cooling channel (402) is a straight hole and the second cooling channel (402) is evenly arranged along the inner circumference of the core (401).

6. The mold for injection molding a flower pot according to claim 1, characterized in that: A clamping ring (403) is arranged on the movable mold core (4), and the clamping ring (403) is located outside the mold core (401). A second molding protrusion (404) is arranged between the movable mold core (4) and the clamping ring (403), and the height of the second molding protrusion (404) exceeds the clamping ring (403).

7. The mold for injection molding a flower pot according to claim 1, characterized in that: The lower end of the fixed mold core (3) can be inserted into the movable mold core (4), and a plurality of heat dissipation plates (303) are evenly arranged on the side surface of the fixed mold core (3) in a circumferential direction.

8. The mold for injection molding a flower pot according to claim 5, characterized in that: The first cooling plate (102) and the second cooling plate (202) are both provided with penetrating cooling water channels.

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