Shaping mold for producing plastic food supporting box

Abstract

The utility model discloses a shaping mold for producing a plastic food supporting box, which comprises a base, a lower mold, an upper mold, an external controller and a cooling mechanism, and belongs to the technical field of shaping molds. The electric hydraulic cylinder drives the upper die to form the forming die with the lower die under the limitation of the four limiting columns, after raw materials are injected into the lower die and the upper die, cold water is continuously conveyed into the cooling pipe through the external water pump, air cooled by the cooling pipe is blown to the lower die and the upper die through the exhaust fan, and the forming die is formed. Then a motor A drives a horizontal gear A to be meshed with a horizontal gear B, so that a connecting column drives a mold on a rotating disc to rotate, the lower mold and the upper mold are comprehensively and uniformly cooled by a cooling assembly, and the purposes of accelerating forming of the plastic supporting box and improving the forming efficiency are achieved. And the production efficiency of the plastic supporting box is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shaping molds, in particular to a shaping mold for producing food plastic trays. Background Art

[0002] The shaping mold is also called the forming mold or the mold. It is a mold made in proportion according to the shape and structure of the actual object. It uses injection molding or blow molding to make the material into a certain shape. In the production process of food plastic trays, it is necessary to use the shaping mold for food plastic tray production to shape the food plastic trays.

[0003] A patent with patent announcement number CN219171402U discloses a shaping mold for the production of plastic food trays, including a base, the top of the base is fixedly connected to the lower mold body, the top of the lower mold body is provided with an upper mold body, the top of the inner cavity of the upper mold body is fixedly connected to a heating tube, both sides of the top of the base are fixedly connected to mounting plates, the top between the two mounting plates is fixedly connected to an adjustment plate, both sides of the top of the adjustment plate are fixedly connected to a cylinder, the bottom of the cylinder output end passes through the adjustment plate and is fixedly connected to the upper mold body.

[0004] However, the shaping mold for producing food plastic trays in the above patent still has certain problems during use. The upper and lower molds are not cooled, which makes the plastic trays slowly formed inside the upper and lower molds, affecting the production rate of the plastic trays. Therefore, a shaping mold for producing food plastic trays is proposed, which solves the above problems through a cooling mechanism such as a fixed seat. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a shaping die for producing plastic food trays, which solves the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a shaping mold for producing plastic food trays, comprising a base for supporting and placing, a lower mold, an upper mold, and an external controller for controlling the device, an inspection window is provided on one side of the base, and a ventilation hole is provided on the inspection window, and further comprising:

[0007] A cooling mechanism includes a fixed seat, a protective cylinder and a cooling assembly. The fixed seat is fixedly connected to one end of the upper surface of the base close to the outside. The protective cylinder is fixedly connected to the fixed seat. One end of the protective cylinder close to the lower mold and the upper mold is set to be open and corresponds to the lower mold. The other end of the protective cylinder is set to an air inlet. The cooling assembly is arranged inside the protective cylinder. The lower mold is connected to the base through a rotating assembly, and the upper mold is connected to the lower mold through a driving assembly.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] Further technical solution: The cooling assembly includes an exhaust fan and a fixed column. The exhaust fan is fixedly connected to the inner wall of the protective tube through the fixed column. There are four fixed columns, which are distributed in a circular array. The exhaust fan is fixedly connected to the fixed column.

[0010] Further technical solution: A cooling pipe is provided at one end of the protective tube near the air inlet, and the two ends of the cooling pipe pass through both sides of the protective tube and are fixedly connected to the protective tube. One end of the water inlet of the cooling pipe is connected to the water supply pipe of an external water pump, and one end of the water outlet of the cooling pipe is fixedly connected to the drain pipe.

[0011] Further technical solution: The rotating assembly includes a rotating disk, a connecting column, a motor A, a spur gear A and a spur gear B. The rotating disk is embedded in the middle of the upper surface of the base and is rotatably connected to the base. One end of the connecting column is fixedly connected to the middle of the lower surface of the rotating disk, and the other end of the connecting column passes through the top of the base and extends into the interior of the base. The spur gear B is fixedly sleeved on one end of the connecting column near the bottom. The motor A is fixedly connected to the inner wall of the base through a mounting bracket. The spur gear A is fixedly connected to the output shaft of motor A, and the spur gear A is meshed with the spur gear B.

[0012] Further technical solution: the lower mold is fixedly installed in the middle of the upper surface of the rotating disk, the four corners of the upper surface of the lower mold are fixedly connected to the limiting columns, the upper mold is arranged on the top of the lower mold, the four corners of the upper mold pass through the four limiting columns and are slidably connected to the limiting columns, the driving assembly includes a top plate and an electric hydraulic cylinder, the top plate is fixedly connected to the top of the four limiting columns, the electric hydraulic cylinder is fixedly connected to the lower surface of the top plate, and one end of the output shaft of the electric hydraulic cylinder is fixedly connected to the upper surface of the upper mold.

[0013] Further technical solution: A discharging assembly is provided in the middle of the lower mold, and the discharging assembly includes a push rod, a fixed rod, a spring, a connecting plate, a pull rope and a limit platform. One end of the push rod is arranged inside the lower mold, and the other end of the push rod passes through the lower mold, the rotating disk and the middle of the connecting column and is sleeved on the outside of the fixed rod and is slidably connected to the fixed rod. The other end of the fixed rod is fixedly connected to the bottom inner of the base, and the spring is sleeved on the outside of the fixed rod. Both ends of the spring are fixedly connected to the bottom of the push rod and the bottom inner of the base respectively. The push rod is sealed and slidably connected to the lower mold, and the connecting plate is fixedly sleeved on one end of the push rod passing through the connecting column. The limit platform is arranged at the bottom of the connecting plate and fixedly connected to the bottom inner of the base. One end of the pull rope is fixedly connected to the connecting plate, and the other end of the pull rope passes through the limit platform and the bottom of the base. When the lower surface of the connecting plate contacts the upper surface of the limit platform, the upper surface of the push rod is flush with the bottom inner of the lower mold.

[0014] Beneficial effects

[0015] The utility model provides a shaping mold for producing plastic food trays. Compared with the prior art, it has the following advantages:

[0016] 1. The electric hydraulic cylinder drives the upper mold to form a forming mold with the lower mold under the limit of four limit columns. After the raw materials are injected into the lower mold and the upper mold, the external water pump continuously delivers cold water to the inside of the cooling pipe, so that the exhaust fan blows the air cooled by the cooling pipe to the lower mold and the upper mold to achieve the purpose of cooling the lower mold and the upper mold. Then, the motor A drives the flat gear A and the flat gear B to engage, so that the connecting column drives the mold on the rotating disk to rotate, and the cooling component realizes comprehensive and uniform cooling of the lower mold and the upper mold, thereby accelerating the molding of plastic trays and improving the production efficiency of plastic trays.

[0017] 2. By pulling the rope, the connecting plate drives the ejector compression spring to move toward the end close to the bottom of the base until the lower surface of the connecting plate contacts the upper surface of the limit table. The upper mold and the lower mold are driven by the driving component to fit together, and then the raw materials are injected into the lower mold and the upper mold. After the lower mold and the upper mold are cooled by the cooling mechanism, the driving component drives the upper mold to reset. By removing the force of pulling the rope, the ejector, under the action of the spring, ejects the plastic tray formed in the lower mold along the outer side of the fixed rod, thereby facilitating the discharge of the formed plastic tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure distribution of the utility model in a partial cross-sectional side view.

[0020] Figure 3 It is a schematic diagram of the partial three-dimensional structure of the utility model.

[0021] Figure 4 It is a schematic diagram of the partial cross-section structure of the utility model.

[0022] Notes on the accompanying drawings: 1. Base; 2. Inspection window; 3. Lower mold; 4. Upper mold; 5. Cooling mechanism; 6. Fixed seat; 7. Protective tube; 8. Exhaust fan; 9. Fixed column; 10. Cooling pipe; 11. Rotating disk; 12. Connecting column; 13. Motor A; 14. Flat gear A; 15. Flat gear B; 16. Limiting column; 17. Top plate; 18. Electric hydraulic cylinder; 19. Push rod; 20. Fixed rod; 21. Spring; 22. Connecting plate; 23. Pull rope; 24. Limiting platform. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0025] See also Figures 1 to 4 , provided in one embodiment of the present invention, is a shaping mold for producing plastic food trays, comprising a base 1 for supporting and placing, a lower mold 3, an upper mold 4, and an external controller for controlling the device. An inspection window 2 is provided on one side of the base 1, and a ventilation hole is provided on the inspection window 2. The following components are also provided:

[0026] The cooling mechanism 5 includes a fixed seat 6, a protective tube 7 and a cooling assembly. The fixed seat 6 is fixedly connected to the upper surface of the base 1 at one end close to the outside. The protective tube 7 is fixedly connected to the fixed seat 6. One end of the protective tube 7 close to the lower mold 3 and the upper mold 4 is set to be open and corresponds to the lower mold 3. The other end of the protective tube 7 is set to an air inlet. The cooling assembly is arranged inside the protective tube 7. The lower mold 3 is connected to the base 1 through a rotating assembly, and the upper mold 4 is connected to the lower mold 3 through a driving assembly.

[0027] Preferably, the cooling assembly includes an exhaust fan 8 and a fixing column 9. The exhaust fan 8 is fixedly connected to the inner wall of the protective tube 7 via the fixing column 9. Four fixing columns 9 are provided and distributed in a circular array. The exhaust fan 8 is fixedly connected to the fixing column 9. The purpose of this arrangement is to achieve the purpose of cooling the lower mold 3 and the upper mold 4 by starting the exhaust fan 8 so that the exhaust fan 8 blows on the lower mold 3 and the upper mold 4.

[0028] Preferably, a cooling pipe 10 is provided at one end of the protective tube 7 near the air inlet. The two ends of the cooling pipe 10 pass through both sides of the protective tube 7 and are fixedly connected to the protective tube 7. The water inlet end of the cooling pipe 10 is connected to the water supply pipe of an external water pump, and the water outlet end of the cooling pipe 10 is fixedly connected to a drain pipe. The purpose of this arrangement is to continuously deliver cold water to the interior of the cooling pipe 10 through the external water pump, so that the exhaust fan 8 blows the air cooled by the cooling pipe 10 toward the lower mold 3 and the upper mold 4, thereby accelerating the cooling of the lower mold 3 and the upper mold 4.

[0029] Preferably, the rotating assembly includes a rotating disk 11, a connecting column 12, a motor A13, a spur gear A14, and a spur gear B15. The rotating disk 11 is embedded in the middle of the upper surface of the base 1 and is rotatably connected to the base 1. One end of the connecting column 12 is fixedly connected to the middle of the lower surface of the rotating disk 11, and the other end of the connecting column 12 passes through the top of the base 1 and extends into the interior of the base 1. The spur gear B15 is fixedly sleeved on the end of the connecting column 12 near the bottom. The motor A13 is fixedly connected to the inner wall of the base 1 through a mounting bracket. The spur gear A14 is fixedly connected to the output shaft of the motor A13, and the spur gear A14 is meshed with the spur gear B15. The purpose of this arrangement is to achieve the purpose of driving the spur gear A14 and the spur gear B15 to mesh with each other through the motor A13, so that the rotating disk 11 is rotated by the connecting column 12.

[0030] Preferably, the lower mold 3 is fixedly mounted in the middle of the upper surface of the rotating disk 11, with the four corners of the upper surface of the lower mold 3 fixedly connected to the limiting posts 16, and the upper mold 4 is arranged on the top of the lower mold 3. The four corners of the upper mold 4 pass through the four limiting posts 16 and are slidably connected to the limiting posts 16. The driving assembly includes a top plate 17 and an electric hydraulic cylinder 18. The top plate 17 is fixedly connected to the top of the four limiting posts 16, the electric hydraulic cylinder 18 is fixedly connected to the lower surface of the top plate 17, and one end of the output shaft of the electric hydraulic cylinder 18 is fixedly connected to the upper surface of the upper mold 4. The purpose of this arrangement is to achieve the purpose of driving the upper mold 4 to move toward or away from one end of the lower mold 3 under the limit of the four limiting posts 16 through the electric hydraulic cylinder 18.

[0031] In an embodiment of the present utility model, the upper mold 4 is driven by an electric hydraulic cylinder 18 to form a forming mold with the lower mold 3 under the limit of four limit columns 16. After the raw materials are injected into the lower mold 3 and the upper mold 4, cold water is continuously sent to the inside of the cooling pipe 10 through an external water pump, so that the exhaust fan 8 blows the air cooled by the cooling pipe 10 to the lower mold 3 and the upper mold 4, thereby achieving the purpose of cooling the lower mold 3 and the upper mold 4. Then, the motor A13 drives the flat gear A14 to engage with the flat gear B15, so that the connecting column 12 drives the mold on the rotating disk 11 to rotate, and the cooling component realizes comprehensive and uniform cooling of the lower mold 3 and the upper mold 4, thereby achieving the purpose of accelerating the molding of plastic trays and improving the production efficiency of plastic trays.

[0032] See also Figure 4As an embodiment of the present invention, a discharge assembly is provided in the middle of the lower mold 3, and the discharge assembly includes a push rod 19, a fixed rod 20, a spring 21, a connecting plate 22, a pull rope 23 and a limit platform 24. One end of the push rod 19 is set inside the lower mold 3, and the other end of the push rod 19 passes through the lower mold 3, the rotating disk 11 and the middle of the connecting column 12 and is sleeved on the outside of the fixed rod 20, and is slidably connected to the fixed rod 20. The other end of the fixed rod 20 is fixedly connected to the bottom of the base 1, and the spring 21 is sleeved on the outside of the fixed rod 20. The two ends of 21 are respectively fixedly connected to the bottom of the ejector rod 19 and the inner bottom of the base 1, the ejector rod 19 is sealed and slidably connected to the lower mold 3, the connecting plate 22 is fixedly sleeved on one end of the ejector rod 19 passing through the connecting column 12, the limit platform 24 is set at the bottom of the connecting plate 22 and fixedly connected to the inner bottom of the base 1, one end of the pull rope 23 is fixedly connected to the connecting plate 22, and the other end of the pull rope 23 passes through the limit platform 24 and the bottom of the base 1. When the lower surface of the connecting plate 22 contacts the upper surface of the limit platform 24, the upper surface of the ejector rod 19 is flush with the inner bottom of the lower mold 3.

[0033] In an embodiment of the present utility model, by pulling the pull rope 23, the connecting plate 22 drives the push rod 19 to compress the spring 21 and move toward the end close to the bottom of the base 1 until the lower surface of the connecting plate 22 contacts the upper surface of the limit platform 24, and the upper mold 4 is driven by the driving component to fit with the lower mold 3, and then the raw material is injected into the lower mold 3 and the upper mold 4. After the cooling mechanism 5 cools the lower mold 3 and the upper mold 4, the driving component drives the upper mold 4 to reset, and the force of pulling the pull rope 23 is removed. Under the action of the spring 21, the push rod 19 ejects the plastic tray box formed inside the lower mold 3 along the outside of the fixed rod 20, thereby achieving the purpose of facilitating the discharge of the formed plastic tray.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shaping mold for producing a food plastic tray, comprising a base (1) for supporting and placing, a lower mold (3), an upper mold (4) and an external controller for controlling the device, an inspection window (2) is arranged on one side of the base (1), and a vent is provided on the inspection window (2), characterized in that: Also includes: A cooling mechanism (5), the cooling mechanism (5) comprising a fixed seat (6), a protective tube (7) and a cooling assembly, the fixed seat (6) being fixedly connected to one end of the upper surface of the base (1) close to the outer side, the protective tube (7) being fixedly connected to the fixed seat (6), one end of the protective tube (7) close to the lower mold (3) and the upper mold (4) being arranged to be open and corresponding to the lower mold (3), the other end of the protective tube (7) being arranged to be an air inlet, the cooling assembly being arranged inside the protective tube (7), the lower mold (3) being connected to the base (1) via a rotating assembly, and the upper mold (4) being connected to the lower mold (3) via a driving assembly.

2. The molding die for producing a plastic food tray according to claim 1, characterized in that: The cooling assembly comprises an exhaust fan (8) and a fixing column (9). The exhaust fan (8) is fixedly connected to the inner wall of the protective tube (7) via the fixing column (9). Four fixing columns (9) are provided and distributed in a circular array. The exhaust fan (8) is fixedly connected to the fixing column (9).

3. The molding die for producing a plastic food tray according to claim 1, characterized in that: A cooling pipe (10) is provided at one end of the protective tube (7) near the air inlet, and two ends of the cooling pipe (10) pass through two sides of the protective tube (7) respectively and are fixedly connected to the protective tube (7), one end of the water inlet of the cooling pipe (10) is connected to a water delivery pipe of an external water pump, and one end of the water outlet of the cooling pipe (10) is fixedly connected to a drainage pipe.

4. The molding die for producing a plastic food tray according to claim 1, characterized in that: The rotating assembly comprises a rotating disk (11), a connecting column (12), a motor A (13), a spur gear A (14) and a spur gear B (15); the rotating disk (11) is embedded in the middle of the upper surface of the base (1) and is rotatably connected to the base (1); one end of the connecting column (12) is fixedly connected to the middle of the lower surface of the rotating disk (11); the other end of the connecting column (12) passes through the top of the base (1) and extends into the interior of the base (1); the spur gear B (15) is fixedly sleeved on one end of the connecting column (12) near the bottom; the motor A (13) is fixedly connected to the inner wall of the base (1) through a mounting frame; the spur gear A (14) is fixedly connected to the output shaft of the motor A (13); and the spur gear A (14) is meshingly connected to the spur gear B (15).

5. The molding die for producing a plastic food tray according to claim 1, characterized in that: The lower mold (3) is fixedly mounted on the middle part of the upper surface of the rotating disk (11); the four corners of the upper surface of the lower mold (3) are respectively fixedly connected to the limiting columns (16); the upper mold (4) is arranged on the top of the lower mold (3); the four corners of the upper mold (4) respectively pass through the four limiting columns (16) and are slidably connected to the limiting columns (16); the driving component comprises a top plate (17) and an electric hydraulic cylinder (18); the top plate (17) is fixedly connected to the top of the four limiting columns (16); the electric hydraulic cylinder (18) is fixedly connected to the lower surface of the top plate (17); and one end of the output shaft of the electric hydraulic cylinder (18) is fixedly connected to the upper surface of the upper mold (4).

6. The molding die for producing a plastic food tray according to claim 1, characterized in that: A discharge assembly is arranged in the middle of the lower mold (3), and the discharge assembly comprises a push rod (19), a fixed rod (20), a spring (21), a connecting plate (22), a pull rope (23) and a limit platform (24). One end of the push rod (19) is arranged inside the lower mold (3), and the other end of the push rod (19) passes through the lower mold (3), the rotating disk (11) and the middle of the connecting column (12) and is sleeved on the outside of the fixed rod (20), and is slidably connected to the fixed rod (20). The other end of the fixed rod (20) is fixedly connected to the inner bottom of the base (1). The spring (21) is sleeved on the outside of the fixed rod (20), and the two ends of the spring (21) are respectively The push rod (19) is fixedly connected to the bottom of the push rod (19) and the inner bottom of the base (1); the push rod (19) is sealingly and slidably connected to the lower mold (3); the connecting plate (22) is fixedly sleeved on one end of the push rod (19) passing through the connecting column (12); the limiting platform (24) is arranged at the bottom of the connecting plate (22) and is fixedly connected to the inner bottom of the base (1); one end of the pull rope (23) is fixedly connected to the connecting plate (22); the other end of the pull rope (23) passes through the limiting platform (24) and the bottom of the base (1); when the lower surface of the connecting plate (22) contacts the upper surface of the limiting platform (24), the upper surface of the push rod (19) is flush with the inner bottom of the lower mold (3).

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