Injection molding equipment for plastic flowerpot production

Abstract

The utility model belongs to the technical field of plastic flowerpot production, and particularly relates to injection molding equipment for plastic flowerpot production, which comprises a ball bin, a material blocking ball is movably mounted in the ball bin, one end of a discharge pipe is communicated with a material storage barrel, a piston is slidably mounted in the material storage barrel, one side of the piston is fixedly connected with a connecting rod, and the other side of the piston is fixedly connected with a screw rod. One end of the connecting spring is fixedly connected with a ball body, one end of the connecting pipe is connected with a transfer bin, the bottom side of the transfer bin is connected with an output pipe, according to the injection molding capacity needed by the plastic flowerpot, the piston is moved leftwards through the connecting rod, the material blocking ball moves in the ball bin away from the discharging pipe, and the ball body blocks the connecting pipe; during injection molding, the piston is moved rightwards, the ball moves in the transfer bin, the material blocking ball blocks the discharging pipe, and by accurately controlling the discharging capacity, it can be ensured that the amount of materials used by all products is the same, and the stability of the product quality can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic flower pot production, in particular to injection molding equipment for producing plastic flower pots. Background Art

[0002] When producing flower pots made of plastic, injection molding equipment is needed. Injection molding equipment is also called injection machine or injection molding machine. It is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. The injection machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity.

[0003] In the prior art, the plastic raw material of the injection molding equipment is conveyed into the hopper of the injection machine, and becomes a melted state after being heated and mixed. The injection equipment injects the molten plastic into a pre-designed mold under the pressure of the molten plastic. Once the plastic is injected into the mold, it begins to cool and solidify inside the mold. Once the plastic solidifies into a solid, the mold is opened and the product can be taken out of the mold.

[0004] However, the above-mentioned injection molding equipment still has some problems. A plastic injection molding equipment in the prior art cannot control the amount of material discharged. The inability to accurately control the amount of material discharged will result in inconsistent plastic usage in each flower pot, thereby affecting the quality of the product in terms of size, weight and appearance. Therefore, in response to the above-mentioned problems, an injection molding equipment for the production of plastic flower pots is proposed. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art and solve the problem that a plastic injection molding device in the prior art cannot control the amount of material discharged, and the inability to accurately control the amount of material discharged will lead to inconsistent plastic usage in each flower pot, thereby affecting the quality of the product in terms of size, weight and appearance, the utility model proposes an injection molding device for the production of plastic flower pots.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: the utility model is an injection molding device for producing plastic flower pots, comprising a main board, two guide rods are fixedly installed at the edges of both sides of the main board, the top of the guide rod is fixedly installed with a fixing plate, the top side of the fixing plate is installed with a control discharge capacity mechanism, the control discharge capacity includes a discharge pipe, the middle section of the discharge pipe is installed with a ball bin, a blocking ball is movably installed inside the ball bin, one end of the discharge pipe is connected with a storage barrel, the storage barrel is installed on the top side of the fixing plate, a piston is slidably installed inside the storage barrel, a connecting rod is fixedly connected to one side of the piston, and one end of the connecting rod extends to the outside of the storage barrel;

[0007] One end of the storage barrel is connected to a connecting pipe, a connecting spring is fixedly connected to the interior of the connecting pipe, a ball is fixedly connected to one end of the connecting spring, one end of the connecting pipe is connected to a transfer bin, an output pipe is connected to the bottom side of the transfer bin, one end of the output pipe passes through a fixed plate and extends to its bottom side to be connected to a conveying pipe. By precisely controlling the discharge capacity, it is possible to ensure that the amount of material used for each product is the same, thereby ensuring the consistency of the product's size, weight and appearance, which helps to improve the stability of product quality, and can ensure that the required amount of material is minimized, reduce production costs, and reduce the generation of waste.

[0008] Preferably, a bracket is fixedly installed on the top side of the fixed plate located on one side of the storage barrel, a conveying barrel is fixedly installed on the top of the bracket, a spiral auger is rotatably installed inside the conveying barrel, a driving motor is equipped on one side of the conveying barrel, the output end of the driving motor is connected to one end of the spiral auger by a coupling, a feed hopper is connected on the outer wall of the top side of the conveying barrel, and one end of the conveying barrel is connected to the discharge pipe, thereby realizing efficient, stable and controllable conveying of materials, facilitating operation and the input and collection of materials, and helping to improve the production efficiency of plastic flower pots.

[0009] Preferably, two cylinders are symmetrically installed on the bottom side of the fixed plate, the ends of the action rods of the cylinders are fixedly connected to the upper mold, and two positioning holes are provided on the two side edges of the upper mold. Stable positioning helps to improve the working accuracy during the production process.

[0010] Preferably, a support leg is fixedly installed on the bottom side of the mainboard, a lower mold is fixedly installed on the top side of the mainboard, and two positioning pins matching the positioning holes are fixedly installed on the two side edges of the lower mold to ensure the correct position between the lower mold and the upper mold to prevent misalignment or instability.

[0011] Preferably, a U-shaped frame is fixedly installed at the center of the bottom side of the main board, a telescopic rod is installed inside the U-shaped frame, an active end of the telescopic rod is fixedly connected to a top plate, a hollow cavity is opened inside the lower mold, the top plate is movably arranged inside the hollow cavity, an air bag is installed on the inner side of the top plate, an air intake pipe is connected inside the air bag, one end of the air intake pipe extends to the outside of the lower mold, compression rods are fixed at both ends of the top plate, a compression spring is fixed between the top plate and the top side of the hollow cavity, the compression spring is sleeved on the outside of the compression rod, a mold block is installed on the top side of the lower mold, a through hole is opened inside the mold block, the top side of the air bag is connected to the through hole, air is injected into the lower mold, the injected air can create air pressure in the hollow cavity of the lower mold, and when the air pressure is applied to the product inside the mold, a relative force can be generated to help the product to smoothly separate from the mold for easy demoulding operation.

[0012] Preferably, the diameter of the material-blocking ball is larger than the diameter of the discharge pipe, and the diameter of the sphere is smaller than the inner diameter of the transfer bin. The material-blocking ball can effectively control the inflow and outflow of materials and avoid hindering the output of materials.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model has a structure design that when injection molding is required, since the storage barrel is engraved with scale lines, according to the injection molding capacity required for the plastic flower pot, the piston is moved to the left with the cooperation of the connecting rod, and the blocking ball moves away from the discharge pipe inside the ball bin, the ball blocks the pipe opening of the connecting pipe, and the plastic solution inside the conveying barrel flows into the storage barrel. When injection molding is performed, the piston is moved to the right with the cooperation of the connecting rod, and the ball moves inside the transfer bin, the blocking ball blocks the discharge pipe, and the solution flows into the conveying pipe through the output pipe. By accurately controlling the discharge capacity, it can be ensured that the amount of material used for each product is the same, thereby ensuring the consistency of the product size, weight and appearance, which helps to improve the stability of product quality.

[0015] 2. The utility model controls the airflow of the air intake pipe to enter the airbag, the airbag expands, and at the same time the working end of the telescopic rod is extended, so that the top plate moves upward. The upward movement of the top plate will squeeze the airbag. It should be noted that the pipe opening of the air intake pipe needs to be closed, so that when the airbag is compressed, the gas can enter the mold block through the through hole, and the air is injected into the mold block and the interior of the hollow cavity. Since a compression spring is fixedly connected between the top plate and the hollow cavity, the compression spring can provide a certain rebound force, so that the top plate can rebound quickly during demolding, and the structural design is ready for the next mold operation. The injected air can create air pressure in the hollow cavity of the lower mold. When the air pressure is applied to the product inside the mold, a relative force can be generated to help the product to smoothly separate from the mold for easy demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the main structure;

[0018] Figure 2 It is a schematic diagram of the structure of the mechanism for controlling the discharge capacity;

[0019] Figure 3 It is a schematic diagram of the enlarged structure of part A;

[0020] Figure 4 It is a schematic diagram of the structure of the mold clamping drive component;

[0021] Figure 5 Schematic diagram of the film stripping component structure.

[0022] In the figure: 1. support leg; 2. main board; 3. guide rod; 4. fixing plate; 5. discharge pipe; 6. ball bin; 7. blocking ball; 8. storage barrel; 9. piston; 10. connecting rod; 11. connecting pipe; 12. connecting spring; 13. sphere; 14. transfer bin; 15. output pipe; 16. bracket; 17. conveying barrel; 18. spiral auger; 19. feed hopper; 20. drive motor; 21. conveying pipe; 22. cylinder; 23. upper mold; 24. positioning hole; 25. lower mold; 26. positioning pin; 27. U-shaped frame; 28. telescopic rod; 29. ​​hollow cavity; 30. top plate; 31. air bag; 32. intake pipe; 33. compression rod; 34. compression spring; 35. mold block; 36. through hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 As shown, an injection molding device for producing plastic flower pots comprises a main board 2, two guide rods 3 are fixedly installed at the edges of both sides of the main board 2, a fixing plate 4 is fixedly installed on the top of the guide rod 3, a discharge capacity control mechanism is installed on the top side of the fixing plate 4, the discharge capacity control mechanism comprises a discharge pipe 5, a ball bin 6 is installed in the middle section of the discharge pipe 5, a blocking ball 7 is movably installed inside the ball bin 6, one end of the discharge pipe 5 is connected with a storage barrel 8, the storage barrel 8 is installed on the top side of the fixing plate 4, a piston 9 is slidably installed inside the storage barrel 8, a connecting rod 10 is fixedly connected to one side of the piston 9, and one end of the connecting rod 10 extends to the outside of the storage barrel 8;

[0025] One end of the storage barrel 8 is connected to a connecting pipe 11, a connecting spring 12 is fixedly connected to the interior of the connecting pipe 11, a ball 13 is fixedly connected to one end of the connecting spring 12, one end of the connecting pipe 11 is connected to a transfer bin 14, the bottom side of the transfer bin 14 is connected to an output pipe 15, one end of the output pipe 15 passes through the fixed plate 4 and extends to the bottom side thereof to be connected to a delivery pipe 21.

[0026] The top side of the fixed plate 4 is located on one side of the storage barrel 8 and is fixedly installed with a bracket 16. The top of the bracket 16 is fixedly installed with a conveying barrel 17. A spiral auger 18 is rotatably installed inside the conveying barrel 17. One side of the conveying barrel 17 is equipped with a driving motor 20. The output end of the driving motor 20 is connected to one end of the spiral auger 18 through a coupling. A feed hopper 19 is connected to the outer wall of the top side of the conveying barrel 17, and one end of the conveying barrel 17 is connected to the discharge pipe 5. When working, a plastic injection molding device in the prior art cannot control the amount of material discharged. The inability to accurately control the amount of material discharged will result in inconsistent plastic usage for each flower pot, which will further affect the quality of the product in terms of size, weight and appearance. The plastic raw material is injected into the interior of the conveying barrel 17 through the feed hopper 19, and by starting the driving motor 20, the output end of the driving motor 20 will drive The spiral auger 18 rotates to transport the material from the feed hopper 19 to the discharge pipe 5. When injection molding is required, since there are scale lines on the storage barrel 8, according to the injection molding capacity required for the plastic flower pot, with the cooperation of the connecting rod 11, the piston 9 is moved to the left, and the blocking ball 7 moves away from the discharge pipe 5 inside the ball bin 6, the ball 13 blocks the pipe mouth of the connecting pipe 11, and the plastic solution inside the conveying barrel 17 will flow into the interior of the storage barrel 8. When injection molding is performed, with the cooperation of the connecting rod 11, the piston 9 is moved to the right and the ball 13 moves inside the transfer bin 14, the blocking ball 7 will block the discharge pipe 5, and the solution will flow into the interior of the conveying pipe 21 through the output pipe 15. By accurately controlling the discharge capacity, it can be ensured that the amount of material used for each product is the same, thereby ensuring the consistency of the product size, weight and appearance, which helps to improve the stability of product quality.

[0027] Furthermore, two cylinders 22 are symmetrically installed on the bottom side of the fixed plate 4, and the end of the action rod of the cylinder 22 is fixedly connected to the upper mold 23, and two positioning holes 24 are provided on the two side edges of the upper mold 23. The support leg 1 is fixedly installed on the bottom side of the main board 2, and the lower mold 25 is fixedly installed on the top side of the main board 2. The two side edges of the lower mold 25 are fixedly installed with positioning pins 26 that match the two positioning holes 24; when working, when producing flower pots made of plastic material, injection molding equipment is required for injection molding. Injection molding equipment is also called injection molding machine or injection molding machine. It is the main molding equipment for making plastic products of various shapes from thermoplastic plastics or thermosetting plastics using plastic molding molds. The injection machine can heat the plastic and apply high pressure to the molten plastic. The upper mold 23 and the lower mold 25 are tightly fitted together when necessary. By starting the cylinder 22, the action rod of the cylinder 22 will extend or shorten. When extending, the upper mold 23 will be driven to move downward, and the positioning pin 26 on the lower mold 25 will be inserted into the interior of the positioning hole 24, so that the upper mold 23 and the lower mold 25 can fit tightly together. When the two sides are fitting together, the solution inside the delivery pipe 21 enters the interior of the mold cavity to facilitate the molding of the plastic flower pot. When shortening, it means that demoulding is required, and the action rod of the cylinder 22 will drive the upper mold 23 to move upward, and the positioning pin 26 will separate from the positioning hole 24 to ensure that the lower mold 25 and the upper mold 23 are in the correct position to prevent misalignment or instability.

[0028] Further, a U-shaped frame 27 is fixedly installed at the center of the bottom side of the main board 2, a telescopic rod 28 is installed inside the U-shaped frame 27, and a top plate 30 is fixedly connected to the active end of the telescopic rod 28. A hollow cavity 29 is opened inside the lower mold 25, and the top plate 30 is movably arranged inside the hollow cavity 29. An air bag 31 is installed on the inner side of the top plate 30, and an air intake pipe 32 is connected to the inside of the air bag 31. One end of the air intake pipe 32 extends to the outside of the lower mold 25. Compression rods 33 are fixed to both ends of the top plate 30, and a compression spring 34 is fixed between the top plate 30 and the top side of the hollow cavity 29. The compression spring 34 is sleeved on the outside of the compression rod 33. A mold block 35 is installed on the top side of the lower mold 25, and a through hole 36 is opened inside the mold block 35. The top side of the air bag 31 is connected to the through hole 36. During operation, demoulding is a key step in the manufacturing process. After demoulding, subsequent processing steps can be performed. If the mold is not demolded in time during trimming, pressure or stress may be caused to the mold, causing damage to the mold. By controlling the airflow of the air inlet pipe 32 to enter the airbag 31, the airbag 31 expands, and at the same time, the active end of the telescopic rod 28 is extended, so that the top plate 30 moves upward. The upward movement of the top plate 30 will squeeze the airbag 31. It should be noted that the pipe mouth of the air inlet pipe 32 needs to be closed. In this way, when the airbag 31 is compressed, the gas can enter the mold block 35 through the through hole 36, and the air is injected into the mold block 35 and the hollow cavity 29. Since a compression spring 34 is fixedly connected between the top plate 30 and the hollow cavity 29, the compression spring 34 can provide a certain rebound force, so that the top plate 30 can rebound quickly during demolding, preparing for the next mold operation. The injected air can create air pressure in the hollow cavity 29 of the lower mold 25. When the air pressure is applied to the product inside the mold, a relative force can be generated to help the product to be smoothly separated from the mold for easy demolding.

[0029] Working principle: by starting the air cylinder 22, the action rod of the air cylinder 22 will extend or shorten. When extending, it will drive the upper mold 23 to move downward, and the positioning pin 26 on the lower mold 25 will be inserted into the interior of the positioning hole 24, so that the upper mold 23 and the lower mold 25 can fit tightly. When the two sides are fitting, the solution inside the delivery tube 21 enters the interior of the mold cavity, which is convenient for the molding of the plastic flower pot. When shortening, it means that demoulding is required, and the action rod of the air cylinder 22 will drive the upper mold 23 to move upward, and the positioning pin 26 will separate from the positioning hole 24, ensuring that the lower mold 25 and the upper mold 23 are in the correct position to prevent misalignment or instability.

[0030] A plastic injection molding device in the prior art cannot control the amount of material discharged. The inability to accurately control the amount of material discharged will result in inconsistent plastic usage for each flower pot, thereby affecting the quality of the product in terms of size, weight and appearance. The plastic raw material is injected into the interior of the conveying cylinder 17 through the feed hopper 19. By starting the drive motor 20, the output end of the drive motor 20 will drive the spiral auger 18 to rotate, thereby conveying the material from the feed hopper 19 to the discharge pipe 5. When the injection molding operation is required, since there are scale lines engraved on the storage cylinder 8, according to the injection molding capacity required for the plastic flower pot, with the cooperation of the connecting rod 11, the piston 9 is moved to the left. The blocking ball 7 moves away from the discharge pipe 5 and moves inside the ball bin 6. The ball 13 blocks the pipe opening of the connecting pipe 11. The plastic solution inside the conveying cylinder 17 flows into the storage cylinder 8. When injection molding is performed, with the cooperation of the connecting rod 11, the piston 9 is moved to the right and the ball 13 moves inside the transfer bin 14. The blocking ball 7 blocks the discharge pipe 5, and the solution flows into the conveying pipe 21 through the output pipe 15. By accurately controlling the discharge capacity, it can be ensured that the amount of material used for each product is the same, thereby ensuring the consistency of the product size, weight and appearance, which helps to improve the stability of product quality.

[0031] Demolding is a key step in the manufacturing process. After demolding, subsequent processing steps such as trimming can be carried out. If demolding is not carried out in time, pressure or stress may be caused to the mold, causing damage to the mold. By controlling the airflow of the air inlet pipe 32 to enter the airbag 31, the airbag 31 expands, and at the same time, the active end of the telescopic rod 28 is extended, so that the top plate 30 moves upward. The upward movement of the top plate 30 squeezes the airbag 31. It should be noted that the pipe opening of the air inlet pipe 32 needs to be closed, so that when the airbag 31 is compressed, the gas can pass through the airbag 31. Hole 36 enters the mold block 35, and air is injected into the mold block 35 and the interior of the hollow cavity 29. Since a compression spring 34 is fixedly connected between the top plate 30 and the hollow cavity 29, the compression spring 34 can provide a certain rebound force, so that the top plate 30 can rebound quickly during demolding, ready for the next mold operation. The injected air can create air pressure in the hollow cavity 29 of the lower mold 25. When the air pressure is applied to the product inside the mold, a relative force can be generated to help the product to be smoothly separated from the mold for easy demolding.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An injection molding device for producing plastic flower pots, characterized in that: It comprises a main board (2), two guide rods (3) are fixedly installed at the edges of both sides of the main board (2), a fixed plate (4) is fixedly installed at the top of the guide rod (3), a discharge capacity control mechanism is installed on the top side of the fixed plate (4), the discharge capacity control mechanism comprises a discharge pipe (5), a ball bin (6) is installed in the middle section of the discharge pipe (5), a blocking ball (7) is movably installed inside the ball bin (6), one end of the discharge pipe (5) is connected to a storage barrel (8), the storage barrel (8) is installed on the top side of the fixed plate (4), a piston (9) is slidably installed inside the storage barrel (8), a connecting rod (10) is fixedly connected to one side of the piston (9), and one end of the connecting rod (10) extends to the outside of the storage barrel (8); One end of the material storage barrel (8) is connected to a connecting pipe (11), a connecting spring (12) is fixedly connected to the interior of the connecting pipe (11), one end of the connecting spring (12) is fixedly connected to a ball (13), one end of the connecting pipe (11) is connected to a transfer bin (14), the bottom side of the transfer bin (14) is connected to an output pipe (15), one end of the output pipe (15) passes through the fixed plate (4) and extends to the bottom side thereof to be connected to a delivery pipe (21).

2. The injection molding equipment for producing plastic flower pots according to claim 1, characterized in that: The top side of the fixed plate (4) is located on one side of the storage barrel (8) and is fixedly mounted with a bracket (16); a conveying barrel (17) is fixedly mounted on the top of the bracket (16); a spiral auger (18) is rotatably mounted inside the conveying barrel (17); a driving motor (20) is mounted on one side of the conveying barrel (17); an output end of the driving motor (20) is connected to one end of the spiral auger (18) via a coupling; a feed hopper (19) is connected to the outer wall of the top side of the conveying barrel (17); and one end of the conveying barrel (17) is connected to a discharge pipe (5).

3. The injection molding equipment for producing plastic flower pots according to claim 2, characterized in that: Two cylinders (22) are symmetrically mounted on the bottom side of the fixed plate (4), the ends of the action rods of the cylinders (22) are fixedly connected to an upper mold (23), and two positioning holes (24) are provided on both side edges of the upper mold (23).

4. The injection molding equipment for producing plastic flower pots according to claim 3, characterized in that: A support leg (1) is fixedly mounted on the bottom side of the main board (2), a lower mold (25) is fixedly mounted on the top side of the main board (2), and two positioning pins (26) matching the positioning holes (24) are fixedly mounted on both side edges of the lower mold (25).

5. The injection molding equipment for producing plastic flower pots according to claim 4, characterized in that: A U-shaped frame (27) is fixedly installed at the center of the bottom side of the main board (2), a telescopic rod (28) is installed inside the U-shaped frame (27), the active end of the telescopic rod (28) is fixedly connected to a top plate (30), a hollow cavity (29) is opened inside the lower mold (25), the top plate (30) is movably arranged inside the hollow cavity (29), an air bag (31) is installed on the inner side of the top plate (30), the inside of the air bag (31) is connected to an air intake pipe (32), and the air intake pipe One end of the top plate (32) extends to the outside of the lower mold (25), compression rods (33) are fixed at both ends of the top plate (30), a compression spring (34) is fixed between the top plate (30) and the top side of the hollow cavity (29), and the compression spring (34) is sleeved on the outside of the compression rod (33), a mold block (35) is installed on the top side of the lower mold (25), a through hole (36) is opened inside the mold block (35), and the top side of the airbag (31) is connected to the through hole (36).

6. The injection molding equipment for producing plastic flower pots according to claim 5, characterized in that: The diameter of the blocking ball (7) is greater than the diameter of the discharge pipe (5), and the diameter of the sphere (13) is smaller than the inner diameter of the transfer bin (14).

Images