Anti-deformation PET plastic box injection molding mold

Abstract

The utility model relates to the technical field of injection molding molds, and discloses an anti-deformation PET plastic box injection molding mold which comprises a fixed base, the left end of the top of the fixed base is fixedly connected with a side face top plate, the right end of the top of the side face top plate is fixedly connected with a mounting plate, and the right side of the mounting plate is provided with a height adjusting arm. The height adjusting arm and the mounting plate are connected through a sliding adjusting assembly, a hydraulic column is fixedly connected to the right end of the bottom of the height adjusting arm, an upper die is fixedly connected to the bottom of the hydraulic column, and a lower die is fixedly connected to the top of the fixed base. According to the utility model, after molten plastic is injected into the cavity through the material conveying machine for cooling and molding, the cooled PET plastic box is pushed out by the ejection assembly, so that the bottom is prevented from being adhered to the lower mold, and edge warping and taking are carried out by using a tool, the product quality is ensured, the actual production requirements are met, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding molds, in particular to an anti-deformation PET plastic box injection molding mold. Background Art

[0002] PET plastic box is a packaging container made of polyethylene terephthalate, which is widely used in many fields such as food, medicine and cosmetics. It has the characteristics of high transparency, strong chemical corrosion resistance and light weight. It can effectively protect the internal items and make it easy for consumers to observe the status of the internal products.

[0003] PET plastic box injection molding mold is a tool used to produce PET plastic boxes. The molten PET plastic is injected into the mold cavity, and after cooling and solidification, a PET plastic box of a specific shape is formed. During the shaping process, the precision and quality of the mold directly affect the dimensional accuracy, appearance quality and performance stability of the PET plastic box.

[0004] When the existing PET plastic box injection molding mold is demolded, the PET plastic will fit tightly with the mold during the cooling process, and it is easy to stick to the mold during demolding. The adhesion phenomenon will cause the PET plastic box to be subjected to uneven force during the demolding process, which is prone to deformation, affecting the product quality and appearance, not only increasing production costs but also reducing production efficiency. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an anti-deformation PET plastic box injection molding mold, which aims to improve the problem that the PET plastic box injection molding mold adheres to the mold during demolding, resulting in uneven force during the demolding process and thus deformation.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-deformation PET plastic box injection molding mold, comprising a fixed base, the top left end of the fixed base is fixedly connected to the side top plate, the top right end of the side top plate is fixedly connected to the mounting plate, a height adjustment arm is provided on the right side of the mounting plate, the height adjustment arm and the mounting plate are connected by a sliding adjustment component, the bottom right end of the height adjustment arm is fixedly connected to a hydraulic column, the bottom of the hydraulic column is fixedly connected to the upper mold, the top of the fixed base is fixedly connected to the lower mold, the top left end of the side top plate is fixedly connected to the plastic heating tank, the top rear end of the side top plate is fixedly connected to a feeder, the input end of the feeder is connected to the rear bottom end of the plastic heating tank, the output end of the feeder is connected to a feed pipe, the bottom end of the feed pipe is connected to the top of the upper mold, an ejection assembly is provided on the top left side of the fixed base, and a cooling salvage mechanism is provided at the bottom of the fixed base.

[0007] As a further description of the above technical solution:

[0008] The cooling and salvaging mechanism includes a cooling cylinder, which is fixedly connected to the bottom of the fixed base, and a cooling feed port is opened on the right side of the top of the fixed base. The bottom of the cooling feed port is communicated with the cooling cylinder, and the interior of the cooling cylinder is rotatably connected to multiple transfer water carts, and the rear ends of the multiple transfer water carts all pass through the rear side of the cooling cylinder. A rubber transmission belt is provided on the rear side of the outer wall of the multiple transfer water carts, and the right end of the rear side of the cooling cylinder is fixedly connected to drive motor 1, and the output end of the drive motor 1 is fixedly connected to the rear end of the right end transfer water cart. The left end of the interior of the cooling cylinder is rotatably connected to the salvaging water cart, and the left side of the cooling cylinder is fixedly connected to drive motor 2, and the output end of the drive motor 2 is fixedly connected to the middle of the salvaging water cart.

[0009] As a further description of the above technical solution:

[0010] The ejection assembly includes an electric telescopic rod, which is fixedly connected to the left side of the top of the fixed base. The right end of the electric telescopic rod is fixedly connected to a telescopic arm. The right end of the telescopic arm passes through the interior of the lower mold and is fixedly connected to a model push plate. The outer wall of the model push plate is slidably connected to the inner wall of the lower mold.

[0011] As a further description of the above technical solution:

[0012] The sliding adjustment assembly includes two slide rails, both of which are fixedly connected to the front and rear ends of the right side of the mounting plate. The front and rear ends of the left side of the height adjustment arm are provided with slide grooves. The outer walls of the two slide rails are slidably connected to the slide grooves. The top of the mounting plate is fixedly connected to the electric telescopic rod 2, and the output end of the electric telescopic rod 2 is fixedly connected to the left side of the height adjustment arm.

[0013] As a further description of the above technical solution:

[0014] The four corners of the bottom of the cooling cylinder are all fixedly connected with supporting legs, and the shapes of the multiple supporting legs are all cylindrical.

[0015] As a further description of the above technical solution:

[0016] A console is fixedly connected to the middle of the front side of the fixed base, and a plurality of control buttons are fixedly connected to the top of the console.

[0017] As a further description of the above technical solution:

[0018] A temperature gauge is fixedly connected to the front side of the side top plate, and the temperature gauge is electrically connected to the plastic heating tank.

[0019] As a further description of the above technical solution:

[0020] A plurality of fixing pins are fixedly connected to the inner top of the upper mold, and a plurality of fixing holes are opened on the top of the lower mold, and the plurality of fixing pins and the fixing holes are engaged with each other.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the upper mold and the lower mold are driven by the hydraulic column to cooperate. After the feeder injects the molten plastic into the mold cavity and cools it to form, the upper mold is lifted upward by the hydraulic column. At the same time, the ejector assembly pushes out the PET plastic box after cooling, avoiding the adhesion of the bottom and the lower mold. The box can then be picked up by the edge warping with a tool. At the same time, the deformation of the PET plastic box caused by incomplete cooling during the production process is avoided, thereby ensuring product quality, meeting actual production needs, and greatly improving production efficiency.

[0023] 2. In the utility model, the transfer water wheel and the salvage water wheel are driven by the driving motor 1 and the driving motor 2 respectively, and the product is evenly cooled in the coolant by using the rubber transmission belt, thereby realizing the automatic cooling and salvage of the product after injection molding. The full automation process improves production efficiency, reduces manual operation costs, and facilitates subsequent processing and packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram of an anti-deformation PET plastic box injection molding mold proposed by the utility model;

[0025] Figure 2 This is a front view of an anti-deformation PET plastic box injection molding mold proposed by the utility model;

[0026] Figure 3 This is a schematic structural diagram of a cooling and salvaging mechanism in an anti-deformation PET plastic box injection molding die proposed by the present invention;

[0027] Figure 4 This is a structural breakdown diagram of the lower mold in an anti-deformation PET plastic box injection molding mold proposed by the utility model;

[0028] Figure 5 The utility model provides a structural schematic diagram of a fixing pin in an injection molding die for an anti-deformation PET plastic box.

[0029] Legend:

[0030] 1. Fixed base; 2. Cooling and salvaging mechanism; 201. Cooling cylinder; 202. Cooling feed port; 203. Transfer water wheel; 204. Rubber transmission belt; 205. Drive motor 1; 206. Salvage water wheel; 207. Drive motor 2; 3. Side top plate; 4. Mounting plate; 5. Height adjustment arm; 6. Hydraulic column; 7. Upper mold; 8. Lower mold; 9. Plastic heating tank; 10. Feeder; 11. Feeder pipe; 12. Electric telescopic rod 1; 13. Telescopic arm; 14. Model push plate; 15. Slide rail; 16. Slide trough; 17. Electric telescopic rod 2; 18. Support leg; 19. Control console; 20. Control button; 21. Thermometer; 22. Fixing pin; 23. Fixing hole. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figure 1-Figure 5 The utility model provides an embodiment of an anti-deformation PET plastic box injection molding mold, comprising a fixed base 1, the fixed base 1 plays the role of stably supporting the entire device, the top left end of the fixed base 1 is fixedly connected to the side top plate 3, providing a mounting position for the side top plate 3, the top right end of the side top plate 3 is fixedly connected to the mounting plate 4, providing mounting support for the height adjustment arm 5, the height adjustment arm 5 is arranged on the right side of the mounting plate 4, and is connected to the mounting plate 4 through a sliding adjustment component to achieve height adjustment, and the bottom right end of the fixed base 1 is connected to the hydraulic column 6 for driving the upper mold 7 to move up and down, the hydraulic column 6 is fixedly connected to the bottom right end of the height adjustment arm 5, and can provide power to drive the upper mold 7 to move up and down to achieve mold closing and mold opening operations, the upper mold 7 is fixedly connected to the bottom of the hydraulic column 6, and cooperates with the lower mold 8 for injection molding, and the lower mold 8 is fixedly connected At the top of the fixed base 1, a cavity is formed with the upper mold 7 for injection molding products. The top left end of the side top plate 3 is fixedly connected to the plastic heating tank 9, which can heat the plastic raw material to make it reach a molten state. The top rear end of the side top plate 3 is fixedly connected to the feeder 10, which can transport the molten plastic raw material in the plastic heating tank 9 to the feeder pipe 11. The input end of the feeder 10 is connected to the rear bottom end of the plastic heating tank 9, and the output end is connected to the feeder pipe 11 to realize the transmission of the plastic raw material. The bottom end of the feeder pipe 11 is connected to the top of the upper mold 7, and the molten plastic raw material is injected into the cavity between the upper mold 7 and the lower mold 8. An ejection assembly is set on the top left side of the fixed base 1, which can eject the product from the lower mold 8 after it is formed. A cooling and salvaging mechanism 2 is set at the bottom of the fixed base 1 to cool and salvage the product after injection molding.

[0033] The cooling and salvaging mechanism 2 includes a cooling cylinder 201, which is fixedly connected to the bottom of the fixed base 1 and can provide cooling space for cooling the injection-molded product. A cooling feed port 202 is provided on the top right side of the fixed base 1. The bottom of the cooling feed port 202 is interconnected with the cooling cylinder 201, so that the injection-molded product can smoothly enter the cooling cylinder 201. The interior of the cooling cylinder 201 is rotatably connected with a plurality of transfer water wheels 203. The plurality of transfer water wheels 203 can transfer the product in the cooling cylinder 201 so that the product is evenly cooled. The rear ends of the plurality of transfer water wheels 203 all pass through the rear side of the cooling cylinder 201, and the rear side of the outer wall of the plurality of transfer water wheels 203 is provided with a rubber transmission belt 204. The rubber transmission belt 204 can ensure that multiple transfer water wheels 203 rotate synchronously. The right end of the rear side of the cooling cylinder 201 is fixedly connected to a drive motor 205. The drive motor 205 can provide power to drive the transfer water wheel 203 to rotate. The output end of the drive motor 205 is fixedly connected to the rear end of the right end transfer water wheel 203. The left end of the interior of the cooling cylinder 201 is rotatably connected to a salvage water wheel 206. The salvage water wheel 206 can salvage the cooled product from the cooling cylinder 201. The left side of the cooling cylinder 201 is fixedly connected to a drive motor 207. The drive motor 207 can provide power to drive the salvage water wheel 206 to rotate. The output end of the drive motor 207 is fixedly connected to the middle part of the salvage water wheel 206.

[0034] The ejection assembly includes an electric telescopic rod 12, which is fixedly connected to the left side of the top of the fixed base 1 and can provide ejection power. The right end of the electric telescopic rod 12 is fixedly connected to a telescopic arm 13, which can transmit ejection power. The right end of the telescopic arm 13 passes through the interior of the lower mold 8 and is fixedly connected to a model push plate 14. The model push plate 14 can push the formed product out of the lower mold 8. The outer wall of the model push plate 14 is slidably connected to the inner wall of the lower mold 8 to ensure the stability of the ejection process. The sliding adjustment assembly includes two slide rails 15. The two slide rails 15 are fixedly connected to the front and rear ends of the right side of the mounting plate 4, and can provide sliding tracks for the height adjustment arm 5. The front and rear ends of the left side of the height adjustment arm 5 are provided with slide grooves 16, and the slide grooves 16 can cooperate with the slide rails 15 to slide. The outer walls of the two slide rails 15 are slidably connected with the slide grooves 16, which can realize the smooth sliding of the height adjustment arm 5. The top of the mounting plate 4 is fixedly connected to the electric telescopic rod 2 17, and the electric telescopic rod 2 17 can provide height adjustment power. The output end of the electric telescopic rod 2 17 is fixedly connected to the left side of the height adjustment arm 5, which can push the height adjustment arm 5 to adjust the height.

[0035] The four corners of the bottom of the cooling cylinder 201 are fixedly connected with support legs 18. The shapes of the multiple support legs 18 are all cylindrical. The support legs 18 can provide stable support for the cooling cylinder 201. The middle part of the front side of the fixed base 1 is fixedly connected with a control console 19. The control console 19 can facilitate the operator to centrally control the equipment. The top of the console 19 is fixedly connected with multiple control buttons 20. The control buttons 20 can be used to start or stop various functional components of the equipment. The front side of the side top plate 3 is fixedly connected with a thermometer 21. The thermometer 21 is electrically connected to the plastic heating tank 9. The thermometer 21 can display the temperature of the plastic heating tank 9 in real time, which is convenient for the operator to grasp the heating situation. The inner top of the upper mold 7 is fixedly connected with multiple fixing pins 22, and the top of the lower mold 8 is provided with multiple fixing holes 23. Multiple fixing pins 22 are engaged with the fixing holes 23. The fixing pins 22 and the fixing holes 23 can improve the stability of the upper mold 7 and the lower mold 8 when the mold is closed.

[0036] Working principle: The fixed base 1 plays a role in stably supporting the entire mold structure. The side top plate 3 is fixed to the top left end of the fixed base 1 to provide an installation position for other components. The mounting plate 4 is fixedly connected to the top right end of the side top plate 3. The height adjustment arm 5 is connected to the mounting plate 4 through a sliding adjustment component, so that the height adjustment arm 5 can be adjusted in height within a certain range. The hydraulic column 6 fixedly connected to the bottom right end of the height adjustment arm 5 can provide power for up and down movement. When the hydraulic column 6 works, it can drive the upper mold 7 at the bottom to move up and down. The lower mold 8 on the top of the fixed base 1 cooperates with the upper mold 7 to perform injection molding. The plastic heating tank 9 at the top left end of the side top plate 3 is used to heat the plastic raw materials to make them reach a molten state. The conveyor 10 at the rear end of the top of the side top plate 3 heats the plastic in the heating tank 9 after heating. The plastic raw material is sucked in through its input end and transported to the top of the upper mold 7 from the output end through the transfer pipe 11. When injection molding is required, the hydraulic column 6 drives the upper mold 7 to move downward and close the mold with the lower mold 8. At this time, the feeder 10 injects the molten plastic raw material into the cavity between the upper mold 7 and the lower mold 8 through the transfer pipe 11. After the plastic is cooled and formed, the hydraulic column 6 drives the upper mold 7 to move upward, separating the upper mold 7 and the lower mold 8. The ejection assembly set on the left side of the top of the fixed base 1 can eject the molded PET plastic box from the lower mold 8 for the next injection molding operation, which greatly improves the production efficiency. The overall structure is stable, avoids the use of tools to pick up the freshly produced PET plastic box with warped edges, effectively prevents the deformation of the PET plastic box, ensures product quality, and meets actual production needs.

[0037] In addition, the cooling cylinder 201 is fixedly connected to the bottom of the fixed base 1 to provide space for cooling and salvaging operations. When the injection-molded product needs to be cooled, the product enters the cooling cylinder 201 through the cooling feed port 202 opened on the right side of the top of the fixed base 1. The multiple transfer water wheels 203 rotatably connected inside the cooling cylinder 201 are driven by the drive motor 205. The output end of the drive motor 205 is fixedly connected to the rear end of the transfer water wheel 203 at the right end. The rear ends of the multiple transfer water wheels 203 all pass through the rear side of the cooling cylinder 201, and the rear sides of the outer walls of the multiple transfer water wheels 203 are all provided with rubber transmission Belt 204 causes multiple transfer waterwheels 203 to rotate synchronously, transferring the products entering the cooling cylinder 201 in the coolant to achieve uniform cooling. The left end of the interior of the cooling cylinder 201 is rotatably connected to a salvage waterwheel 206. When the product is cooled, the drive motor 207 fixedly connected to the left side of the cooling cylinder 201 is started, and the output end of the drive motor 207 is fixedly connected to the middle of the salvage waterwheel 206, driving the salvage waterwheel 206 to rotate, and the cooled product is salvaged from the cooling cylinder 201. The entire process is automated, which improves production efficiency and facilitates subsequent processing and packaging operations.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A deformation-resistant PET plastic box injection molding mold, comprising a fixed base (1), characterized in that: The top left end of the fixed base (1) is fixedly connected to a side top plate (3), the top right end of the side top plate (3) is fixedly connected to a mounting plate (4), a height adjustment arm (5) is provided on the right side of the mounting plate (4), the height adjustment arm (5) and the mounting plate (4) are connected via a sliding adjustment assembly, the bottom right end of the height adjustment arm (5) is fixedly connected to a hydraulic column (6), the bottom of the hydraulic column (6) is fixedly connected to an upper mold (7), the top of the fixed base (1) is fixedly connected to a lower mold (8), the top left end of the side top plate (3) is fixedly connected to a lower mold (8), and the top right end of the side top plate (3) is fixedly connected to a lower mold (9). The end of the fixed base (1) is fixedly connected to a plastic heating tank (9), the top rear end of the side top plate (3) is fixedly connected to a feeder (10), the input end of the feeder (10) is connected to the rear bottom end of the plastic heating tank (9), the output end of the feeder (10) is connected to a feed pipe (11), the bottom end of the feed pipe (11) is connected to the top of the upper mold (7), an ejection assembly is provided on the left side of the top of the fixed base (1), and a cooling salvage mechanism (2) is provided at the bottom of the fixed base (1), and the cooling salvage mechanism (2) is used to salvage the cooled plastic box.

2. The anti-deformation PET plastic box injection molding mold according to claim 1, characterized in that: The cooling and salvaging mechanism (2) comprises a cooling cylinder (201), the cooling cylinder (201) is fixedly connected to the bottom of the fixed base (1), a cooling feed port (202) is provided on the right side of the top of the fixed base (1), the bottom of the cooling feed port (202) is communicated with the cooling cylinder (201), a plurality of transfer water wheels (203) are rotatably connected inside the cooling cylinder (201), the rear ends of the plurality of transfer water wheels (203) are all passed through the rear side of the cooling cylinder (201), and the plurality of transfer water wheels (203) are connected to the cooling cylinder (201). A rubber transmission belt (204) is provided on the rear side of the outer wall of the cooling cylinder (201); the right end of the rear side of the cooling cylinder (201) is fixedly connected to a driving motor 1 (205); the output end of the driving motor 1 (205) is fixedly connected to the rear end of the right end transfer water wheel (203); the left end of the interior of the cooling cylinder (201) is rotatably connected to a salvage water wheel (206); the left side of the cooling cylinder (201) is fixedly connected to a driving motor 2 (207); the output end of the driving motor 2 (207) is fixedly connected to the middle of the salvage water wheel (206).

3. The anti-deformation PET plastic box injection molding mold according to claim 1, characterized in that: The ejection assembly includes an electric telescopic rod (12), which is fixedly connected to the left side of the top of the fixed base (1), and the right end of the electric telescopic rod (12) is fixedly connected to a telescopic arm (13), and the right end of the telescopic arm (13) passes through the interior of the lower mold (8) and is fixedly connected to a model push plate (14), and the outer wall of the model push plate (14) is slidably connected to the inner wall of the lower mold (8).

4. The anti-deformation PET plastic box injection molding mold according to claim 1, characterized in that: The sliding adjustment component comprises two slide rails (15), both of which are fixedly connected to the front and rear ends of the right side of the mounting plate (4), and the front and rear ends of the left side of the height adjustment arm (5) are both provided with slide grooves (16), and the outer walls of the two slide rails (15) are both slidably connected to the slide grooves (16), and the top of the mounting plate (4) is fixedly connected to the second electric telescopic rod (17), and the output end of the second electric telescopic rod (17) is fixedly connected to the left side of the height adjustment arm (5).

5. The anti-deformation PET plastic box injection molding mold according to claim 2, characterized in that: Support legs (18) are fixedly connected to the four corners of the bottom of the cooling cylinder (201), and the shapes of the multiple support legs (18) are all cylindrical.

6. The anti-deformation PET plastic box injection molding mold according to claim 1, characterized in that: A console (19) is fixedly connected to the middle of the front side of the fixed base (1), and a plurality of control buttons (20) are fixedly connected to the top of the console (19).

7. The anti-deformation PET plastic box injection molding mold according to claim 1, characterized in that: A temperature gauge (21) is fixedly connected to the front side of the side top plate (3), and the temperature gauge (21) is electrically connected to the plastic heating tank (9).

8. The anti-deformation PET plastic box injection molding mold according to claim 1, characterized in that: The inner top of the upper mold (7) is fixedly connected with a plurality of fixing pins (22), and the top of the lower mold (8) is provided with a plurality of fixing holes (23), and the plurality of fixing pins (22) and the fixing holes (23) are engaged with each other.

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