Plastic cup injection mold convenient to install

Abstract

The plastic cup injection mold convenient to install comprises an upper mold and a lower mold, the lower mold comprises a lower mold plate, a supporting column arranged on the lower mold plate, a protrusion arranged on the lower mold plate and a protruding block arranged on the lower mold plate, and the upper mold comprises an upper mold plate arranged on the supporting column and a groove block arranged on the upper mold plate; a containing groove is formed in the protruding block, the protruding block comprises a first block body and a second block body, half grooves are formed in the sides, close to each other, of the first block body and the second block body, the two half grooves are combined to form the containing groove, and the protrusion is contained in the containing groove to form a forming cavity; a positioning protrusion is arranged on the side, facing the second block body, of the first block body, a positioning groove is formed in the side, facing the first block body, of the second block body, and the positioning groove is used for containing the positioning protrusion. A limiting groove is formed in the groove block and used for containing the protruding block. The mold has the effect of reducing the carrying difficulty through distributed installation, and the mold is convenient to install.

Description

Technical Field

[0001] The present application relates to the field of injection molds, and in particular to an injection mold for a plastic cup which is easy to install. Background Art

[0002] Injection molds are tools for producing plastic products and also tools for giving plastic products complete structures and precise dimensions. Injection molding is a processing method used in mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and then cooling and solidifying to obtain a molded product.

[0003] Plastic cups are common daily necessities. For example, the utility model patent with the authorization announcement number CN211467346U proposes an injection mold for a cup lid, wherein the mold core includes a front mold plate, a rear mold plate, a front mold core, and a rear mold core, and the front mold plate and the rear mold plate are buckled to form a mold core groove; the rear mold core and the front mold core are installed in the mold core groove; the front mold pressing piece is pressed on the top of the mold core, and the rear mold top piece is attached to the bottom of the mold core; the inner cavity insert is installed on the rear mold top piece, and the top groove insert is installed on the front mold pressing piece and is located directly above the inner cavity insert; the outer insert is sleeved at the joint of the inner cavity insert and the top groove insert and pressed on the rear mold core to enclose and form an injection mold groove; the support forms a floating space on the rear mold top piece; in the floating mechanism, the floating plate is located in the floating space, and the fixed end of the floating support is installed on the floating plate and passes through the rear mold top piece and abuts against the rear mold plate.

[0004] The above-mentioned injection mold of the cup cover is easy to demould. However, during the installation process, the front template and the rear template must be installed first, and then the front mold core and the rear mold core must be installed. During the installation of the front template and the rear template, since the front template and the rear template are heavy, it is inconvenient to move, which makes the installation more troublesome, and improper operation will cause safety accidents. Extra caution is required during the installation process, so a mold that is easy to move and install is needed to produce plastic cups. Utility Model Content

[0005] In order to facilitate the installation of the mold, the present application provides a plastic cup injection mold that is easy to install.

[0006] The present application provides a plastic cup injection mold that is easy to install, which adopts the following technical solution:

[0007] A plastic cup injection mold that is easy to install, includes an upper mold and a lower mold, the lower mold includes a lower mold plate, a support column arranged on the lower mold plate, a protrusion arranged on the lower mold plate and a convex block arranged on the lower mold plate, the upper mold includes an upper mold plate arranged on the support column and a groove block arranged on the upper mold plate, the convex block is provided with a receiving groove, the convex block includes a first block body and a second block body, the first block body and the second block body are each provided with a half groove on one side close to each other, the two half grooves are combined into a receiving groove, and the protrusion is accommodated in the receiving groove to form a molding cavity.

[0008] By adopting the above technical solution, when installing the mold, first place the lower template, then install the protrusion on the lower template, then install the support column on the lower template, then cover the protrusion on the protrusion, and then install the groove block on the protrusion to fix the first block and the second block, and finally install the upper template on the support column so that the upper template is supported and fixed. At this time, the groove block of the upper template is connected to the upper template. Compared with the common plastic cup injection mold that installs the front mold core and the rear mold core on the front template and the rear template, the easy-to-install plastic cup injection mold is installed in parts, and the weight of each part is not large, which is convenient for carrying and installation.

[0009] Optionally, a positioning protrusion is provided on a side of the first block facing the second block, and a positioning groove is provided on a side of the second block facing the first block, and the positioning groove is used to accommodate the positioning protrusion.

[0010] By adopting the above technical solution, the positioning protrusion and the positioning groove are provided to facilitate the abutment of the first block and the second block to form a groove block.

[0011] Optionally, a limiting groove is provided on the groove block, and the limiting groove is used for the protrusion to accommodate the first block toward the second block.

[0012] By adopting the above technical solution, a limiting groove is provided for accommodating the protrusion to fix the first block and the second block, thereby preventing the first block and the second block from moving.

[0013] Optionally, a mounting groove for accommodating the groove block is provided on the upper template, a material injection hole is provided on the groove wall of the mounting groove, a material inlet hole that is connected with the material injection hole is provided on the bottom wall of the positioning groove, and the material inlet hole is located directly above the accommodating groove; a guide ring is provided in the material inlet hole, the upper end of the guide ring is located at the bottom end of the material injection hole, and the lower end of the guide ring is located at the top of the material inlet hole, and the outer wall of the guide ring is in close contact with the inner wall of the material injection hole and the inner wall of the material inlet hole.

[0014] By adopting the above technical solution, the feed hole and the injection hole are provided to facilitate the injection of plastic raw materials, and a guide ring is provided to guide the plastic raw materials to prevent the plastic raw materials from overflowing from the connection between the injection hole and the feed hole.

[0015] Optionally, the support columns are located at four corners of the lower template, the support columns are threadedly connected to the lower template, and the upper template is provided with support grooves for accommodating the support columns.

[0016] By adopting the above technical solution, the upper mold is installed on the lower mold through the support columns, and the upper mold is stably supported by the four-corner support method.

[0017] Optionally, the top of the support column is chamfered.

[0018] By adopting the above technical solution, the chamfer is set to facilitate the support groove on the upper template to accommodate the support column.

[0019] Optionally, each of the support columns includes a base column threadedly connected to the lower template and a plurality of columns arranged on the base column, and the plurality of columns are connected in sequence, and the columns close to the base column are threadedly connected to the base column.

[0020] By adopting the above technical solution, a corresponding number of columns can be installed on the bottom column according to needs to obtain support columns of corresponding lengths to support the upper template.

[0021] Optionally, both sides of the upper template and the lower template are provided with hanging rings.

[0022] By adopting the above technical solution, a lifting ring is provided to facilitate workers to carry the upper formwork and the lower formwork.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. First place the lower template, then install the protrusion on the lower template, then install the support column on the lower template, then cover the protrusion on the protrusion, then install the groove block on the protrusion to fix the first block and the second block, and finally install the upper template on the support column to support and fix the upper template. At this time, the groove block of the upper template is connected to the upper template. Compared with the common plastic cup injection mold installation method of the front mold core and the rear mold core on the front template and the rear template, the easy-to-install plastic cup injection mold is installed in parts, and the weight of each part is not large, which is convenient for transportation and installation;

[0025] 2. The positioning protrusion and the positioning groove are provided to facilitate the abutment of the first block and the second block to form a groove block;

[0026] 3. The feed hole and injection hole are set to facilitate the injection of plastic raw materials, and a guide ring is set to guide the plastic raw materials to prevent the plastic raw materials from overflowing from the connection between the injection hole and the feed hole;

[0027] 4. According to the needs, the corresponding number of columns can be installed on the bottom column to obtain the support column of the corresponding length to support the upper formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of a plastic cup injection mold that is easy to install according to an embodiment of the present application.

[0029] Figure 2 Schematic diagram of the structure of the bump in the embodiment.

[0030] Figure 3 It is a schematic structural diagram of the upper template and the groove block of the embodiment.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. upper mold; 101. upper mold plate; 102. groove block; 2. lower mold; 21. lower mold plate; 22. support column; 221. bottom column; 222. column; 23. protrusion; 24. protrusion; 241. first block; 242. second block; 3. lifting ring; 4. accommodating groove; 5. half groove; 6. molding cavity; 7. positioning protrusion; 8. positioning groove; 9. limiting groove; 10. mounting groove; 11. injection hole; 12. feed hole; 13. guide ring; 14. support groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] The present application embodiment discloses a plastic cup injection mold that is easy to install. Figure 1 The plastic cup injection mold which is easy to install includes an upper mold 1 and a lower mold 2. The lower mold 2 includes a lower mold plate 21, a support column 22 installed on the lower mold plate 21, a protrusion 23 installed on the lower mold plate 21 and a convex block 24 installed on the lower mold plate 21. The upper mold 1 includes an upper mold plate 101 installed on the support column 22 and a groove block 102 installed on the upper mold plate 101. Both sides of the upper mold plate 101 and the lower mold plate 21 are threadedly connected with a hanging ring 3.

[0034] Reference Figure 1 and Figure 2 The convex block 24 is provided with a receiving groove 4. The convex block 24 includes a first block 241 and a second block 242. The first block 241 and the second block 242 are provided with a half groove 5 on their sides close to each other. The two half grooves 5 are combined into a receiving groove 4. The protrusion 23 is received in the receiving groove 4 to form a molding cavity 6. The first block 241 is provided with a positioning protrusion 7 on the side facing the second block 242. The second block 242 is provided with a positioning groove 8 on the side facing the first block 241. The positioning groove 8 is for receiving the positioning protrusion 7.

[0035] Reference Figure 1 and Figure 3The groove block 102 is provided with a limiting groove 9, which is for accommodating the protrusion 24. The upper template 101 is provided with a mounting groove 10 for accommodating the groove block 102, and a material injection hole 11 is provided on the groove wall of the mounting groove 10. A material inlet hole 12 that intersects with the material injection hole 11 is provided on the bottom wall of the positioning groove 8, and the material inlet hole 12 is located directly above the accommodating groove 4. A guide ring 13 is fixed in the material inlet hole 12, and the upper end of the guide ring 13 is located at the bottom end of the material injection hole 11, and the lower end of the guide ring 13 is located at the top of the material inlet hole 12, and the outer wall of the guide ring 13 is in close contact with the inner wall of the material injection hole 11 and the inner wall of the material inlet hole 12.

[0036] Reference Figure 1 and Figure 3 The support columns 22 are located at the four corners of the lower template 21. The support columns 22 are threadedly connected to the lower template 21. The upper template 101 is provided with support grooves 14 for accommodating the support columns 22. The top of the support columns 22 is provided with chamfers. Each support column 22 includes a bottom column 221 threadedly connected to the lower template 21 and a plurality of cylinders 222 mounted on the bottom column 221. The plurality of cylinders 222 are connected in sequence, and the cylinders 222 close to the bottom column 221 are threadedly connected to the bottom column 221.

[0037] The implementation principle of the easy-to-install plastic cup injection mold in the embodiment of the present application is: first place the lower template 21, then install the protrusion 23 on the lower template 21, then install the support column 22 on the lower template 21, and then cover the protrusion 24 on the protrusion 23, and then install the groove block 102 on the protrusion 24 to fix the first block 241 and the second block 242, and finally install the upper template 101 on the support column 22 so that the upper template 101 is supported and fixed. At this time, the groove block 102 of the upper template 101 is connected to the upper template 101. Compared with the common plastic cup injection mold that installs the front mold core and the rear mold core on the front template and the rear template, the easy-to-install plastic cup injection mold is installed in parts, and the weight of each part is not large, which is convenient for carrying and installation.

[0038] 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. A plastic cup injection mold that is easy to install, characterized in that: The invention comprises an upper mold (1) and a lower mold (2), wherein the lower mold (2) comprises a lower mold plate (21), a support column (22) arranged on the lower mold plate (21), a protrusion (23) arranged on the lower mold plate (21) and a convex block (24) arranged on the lower mold plate (21); the upper mold (1) comprises an upper mold plate (101) arranged on the support column (22) and a groove block (102) arranged on the upper mold plate (101); a receiving groove (4) is provided on the convex block (24); the convex block (24) comprises a first block body (241) and a second block body (242); a half groove (5) is provided on one side of the first block body (241) and the second block body (242) close to each other; the two half grooves (5) are combined into a receiving groove (4); the protrusion (23) is accommodated in the receiving groove (4) to form a molding cavity (6).

2. The easy-to-install plastic cup injection mold according to claim 1, characterized in that: A positioning protrusion (7) is provided on the side of the first block (241) facing the second block (242), and a positioning groove (8) is provided on the side of the second block (242) facing the first block (241), wherein the positioning groove (8) is for accommodating the positioning protrusion (7).

3. The easy-to-install plastic cup injection mold according to claim 2, characterized in that: The groove block (102) is provided with a limiting groove (9), and the limiting groove (9) is used to accommodate the protrusion (24).

4. The easy-to-install plastic cup injection mold according to claim 2, characterized in that: The upper template (101) is provided with a mounting groove (10) for accommodating the groove block (102); a material injection hole (11) is provided on the groove wall of the mounting groove (10); a material inlet hole (12) which is in communication with the material injection hole (11) is provided on the bottom wall of the positioning groove (8); the material inlet hole (12) is located directly above the accommodating groove (4); a guide ring (13) is provided in the material inlet hole (12); the upper end of the guide ring (13) is located at the bottom end of the material injection hole (11); the lower end of the guide ring (13) is located at the top end of the material inlet hole (12); the outer wall of the guide ring (13) is in close contact with the inner wall of the material injection hole (11) and the inner wall of the material inlet hole (12).

5. The easy-to-install plastic cup injection mold according to claim 1, characterized in that: The support columns (22) are located at the four corners of the lower template (21). The support columns (22) are threadedly connected to the lower template (21). The upper template (101) is provided with support grooves (14) for accommodating the support columns (22).

6. The easy-to-install plastic cup injection mold according to claim 5, characterized in that: The top end of the support column (22) is provided with a chamfer.

7. The easy-to-install plastic cup injection mold according to claim 5, characterized in that: Each of the support columns (22) comprises a bottom column (221) threadedly connected to the lower template (21) and a plurality of columns (222) arranged on the bottom column (221); the plurality of columns (222) are connected in sequence, and the column (222) close to the bottom column (221) is threadedly connected to the bottom column (221).

8. The easy-to-install plastic cup injection mold according to claim 1, characterized in that: Both sides of the upper template (101) and the lower template (21) are provided with hanging rings (3).

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