Injection molding device for producing plastic cups

Abstract

The present invention relates to the technical field of injection molding devices, and in particular to an injection molding device for producing plastic cups, which includes a mixing bin, an auxiliary material tube, a transfer bin, a base material tube, and a sliding tube. The sliding tube is sleeved with a conical material guide plate, the material guide plate seals the transfer bin and the mixing bin, and the sliding tube is provided with a vent hole; a sleeve sleeved at the bottom of the side wall of the sliding tube, the side wall of the sleeve is provided with a first cutting hole, and the side wall of the sliding tube is provided with a second cutting hole; and a cleaning bin. The present invention can reduce the waste of materials and the need for material stockpiling, improve the situation of material agglomeration after long-term stockpiling, and has a better mixing effect. It can timely adjust the addition ratio of base material and auxiliary material according to the product, improve the injection molding effect, use a small amount of material for continuous mixing, reduce the difficulty of cleaning the material in the mixing bin, can quickly clean the mixing bin, improve the cleaning efficiency, reduce the residual material in the mixing bin, and is conducive to improving product quality.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding devices, in particular to an injection molding device for producing plastic cups. Background Art

[0002] In the production process of plastic cups, the injection molding device plays a vital role. Injection molding is the main molding method for thermoplastics or thermosetting plastics to be made into plastic products of various shapes using plastic molding molds.

[0003] During the injection molding machine feeding process, different types of additives often need to be added, and existing technologies mostly use batch addition. However, some additives are prone to agglomeration after mixing due to long-term storage. For example, after some functional additives are mixed with basic plastic raw materials, if they are kept in the silo for a long time waiting for injection molding, the particles will stick to each other and form agglomerates due to environmental factors such as temperature and humidity. This agglomeration phenomenon will seriously hinder the smooth entry of injection molding materials into the injection molding machine, affect the continuity of the injection molding process, and thus reduce production efficiency.

[0004] Referring to the Chinese patent application document with publication number CN114801052A and publication date July 29, 2022, entitled "A feeding device for an injection molding machine", in order to solve the technical problem of how to break up the agglomerated injection molding material, the staff starts the rotary drive, and when the injection molding material passes through the first screening hole on the first screening plate into the space between the first screening plate and the second screening plate, the second rotating shaft g drives the first screening plate to rotate, and the first cone on the first screening plate also rotates at the same time. The first rotating shaft f also drives the second screening plate to rotate in the opposite direction, and the second cone on the second screening plate also rotates synchronously. The first cone and the second cone cooperate with each other and rotate in opposite directions to break up the large particles agglomerated in the injection molding material, thereby improving the quality of the injection molding material.

[0005] With respect to the above-mentioned related technologies, the above-mentioned device breaks up the agglomerated large particles, but agglomerated particles still exist, affecting the continuity of the injection molding process. Summary of the invention

[0006] In view of this, the present invention provides an injection molding device for producing plastic cups, aiming to solve the technical problem in the prior art that the injection molding materials mixed in advance are prone to agglomeration during the placement process.

[0007] In order to solve the above technical problems, the present invention provides an injection molding device for producing plastic cups, which adopts the following technical solutions: an injection molding device for producing plastic cups, comprising a mixing chamber connected to an injection molding machine, a valve being provided at the bottom of the mixing chamber; an auxiliary material pipe connected to the side wall of the mixing chamber, the inner wall of the auxiliary material pipe being tangent to the inner wall of the mixing chamber;

[0008] A transfer bin connected to the top of the mixing bin, a base material pipe is connected to the side wall of the transfer bin, a sliding pipe is vertically slid inside the transfer bin and the mixing bin, a conical material guide plate is sleeved on the sliding pipe, the top of the material guide plate seals the passage between the transfer bin and the mixing bin, a vent hole is opened in the part of the sliding pipe located in the transfer bin, and a sliding member for controlling the vertical movement of the sliding pipe is provided on the top of the transfer bin;

[0009] A sleeve is arranged in the middle of the mixing bin and is slidably sleeved on the bottom of the side wall of the sliding tube, the side wall of the sleeve is provided with a first cutting hole, and the side wall of the sliding tube is provided with a second cutting hole located above the first cutting hole;

[0010] The cleaning chamber is arranged on the left side of the transfer chamber, a connecting pipe made of soft material is connected between the cleaning chamber and the top of the sliding pipe, and an air extraction pipe is connected to the cleaning chamber.

[0011] By adopting the above technical scheme, the valve at the bottom of the mixing bin is opened to connect the bottom of the mixing bin with the injection molding machine, the sliding tube slides downward, the top of the guide plate is separated from the inner wall of the channel, the transfer bin is connected with the mixing bin, and the base material in the transfer bin flows along the guide plate into the mixing bin. Due to the conical setting of the guide plate, the base material moves into the mixing bin along the circumference of the mixing bin; at the same time, the cutting hole one is connected with the cutting hole two, and the exhaust pipe exhausts air, so that the material in the auxiliary material pipe moves into the mixing bin under the action of the airflow. Since the inner wall of the auxiliary material pipe is tangent to the inner wall of the mixing bin, the airflow flows along the circumference of the mixing bin under the guidance of the inner wall of the mixing bin, and the auxiliary material carried by the airflow moves along the circumference of the mixing bin and mixes with the base material. The mixed base material and auxiliary material are added to the injection molding machine along the bottom of the mixing bin.

[0012] The above technical solution can reduce the situation that the base material and the auxiliary material are mixed too much and the long storage time is reduced, reduce the waste of materials and the need for material storage, and improve the situation that the materials are agglomerated after being stored for a long time; at the same time, the continuous mixing of small amounts of materials has a better mixing effect than the traditional method of mixing a large amount of base material and auxiliary materials. The addition ratio of the base material and the auxiliary material can be adjusted in time according to the product, and the injection molding effect is improved. And there is no need to add an additional stirring mechanism or screening mechanism for cleaning the agglomerates.

[0013] Furthermore, the sliding tube is moved upward, the second cutting hole is located above the first cutting hole, the exhaust pipe draws air, the airflow passes through the auxiliary material pipe into the mixing bin, and then enters the sliding tube from the bottom of the mixing bin upward, the sliding tube extracts the material at the bottom of the mixing bin and moves the material to the cleaning bin.

[0014] The above technical solution is suitable for when equipment fails or the product type needs to be changed. Since this solution uses a small amount of material for continuous mixing, the difficulty of cleaning the material in the mixing bin is reduced. The sliding tube extracts the material, which can quickly clean the mixing bin, reduce the need for manual operation, improve cleaning efficiency, reduce the residual material in the mixing bin, and help improve product quality.

[0015] Optionally, the base material tube is connected to a material extraction tube, and the auxiliary material tube is connected to multiple auxiliary material cylinders and multiple material discharge tubes. Both the end of the base material tube and the end of the auxiliary material tube are connected to a control component, which is used to control the connection or closure between the base material tube and the material extraction tube and the connection or closure between the auxiliary material tube and the material discharge tube.

[0016] Optionally, the control member includes a support frame, a rotating tube is rotatably connected in the support frame, a rotating member for controlling the rotation of the rotating tube is provided on the support frame, rotating blocks are fixedly connected at both ends of the rotating tube, curved groove 1 and curved groove 2 are respectively provided in the left rotating block and the right rotating block, curved groove 1 and curved groove 2 both extend upward from left to right and are connected to the rotating tube, the bottom end of curved groove 1 is connected to the right end of the auxiliary material tube, an air intake pipe and an air intake valve connected to the top end of curved groove 2 are provided on the top surface of the right side of the support frame, and a material extraction pipe connected to the inside of the base material barrel is provided on the bottom surface of the right side of the support frame;

[0017] A through groove one which can be communicated with the base material pipe is formed on the bottom surface of the rotating tube, and a plurality of through grooves two which correspond one to one with the feed pipes are formed on the circumferential side wall of the rotating tube.

[0018] By adopting the above technical solution, the feeding of the base material and the auxiliary material is controlled by controlling the rotation of the rotating tube; when the through groove 1 on the rotating tube is located at the top of the rotating tube, the material extraction pipe, the curved groove 2, the rotating tube and the base material pipe are connected, the air extraction pipe extracts air, and the base material enters the transfer bin through the material extraction pipe; when the through groove 1 on the rotating tube is located at the bottom of the rotating tube, the air inlet pipe, the curved groove 2, the rotating tube, the curved groove 1 and the auxiliary material pipe are connected, the unloading valve at the bottom of the auxiliary material barrel is opened, the air extraction pipe extracts air, and the auxiliary material is driven into the mixing bin. When the rotating tube rotates, it can also close the base material pipe or the auxiliary material pipe, which is conducive to the movement of the airflow along the established route to realize the function of the device and is easy to use.

[0019] Optionally, the plurality of feed pipes are arranged in sequence in the axial direction of the rotating tube.

[0020] By adopting the above technical solution, it can be ensured that when the rotating tube is connected to the base material tube, the multiple feed tubes are all closed by the circumferential outer side wall of the rotating tube, thereby improving the stability of the device.

[0021] Optionally, the feed pipe is arranged to be inclined to the left from top to bottom.

[0022] By adopting the above technical solution, the material in the auxiliary material barrel is easily moved into the rotating tube, reducing the possibility of material residue in the discharge tube.

[0023] Optionally, the bending parts of the auxiliary material pipe, base material pipe, connecting pipe, air extraction pipe, material extraction pipe, material discharge pipe, bending groove 1 and bending groove 2 are all set to be rounded corners.

[0024] By adopting the above technical solution, the possibility of material remaining in the pipeline is reduced.

[0025] Optionally, the sliding member includes a cylinder disposed on the top of the transfer bin, the output end of the cylinder is upward and connected to a support plate, and the support plate is fixedly sleeved on the top of the sliding tube.

[0026] Optionally, the rotating member includes a rotating motor fixedly connected to the support frame, and an output end of the rotating motor passes through the support frame and is connected to the rotating block on the right side.

[0027] In summary, the present invention includes the following beneficial technical effects:

[0028] 1. It can reduce the situation in which the base material and the auxiliary material are mixed too much and the long storage time is caused, reduce the waste of materials and the need for material stockpiling, and improve the situation in which the materials agglomerate after being stockpiled for a long time; at the same time, the continuous mixing of small amounts of materials has a better mixing effect than the traditional method of mixing a large amount of base materials with auxiliary materials. The addition ratio of base materials and auxiliary materials can be adjusted in time according to the product, thereby improving the injection molding effect;

[0029] Since this solution uses a small amount of material for continuous mixing, the difficulty of cleaning the material in the mixing bin is reduced. It is suitable for when equipment fails or the product type needs to be changed. The sliding tube extracts the material, which can quickly clean the mixing bin, reduce the need for manual operation, improve cleaning efficiency, reduce the residual material in the mixing bin, and help improve product quality.

[0030] 2. By controlling the rotation of the rotating tube, the feeding of the base material and the auxiliary material is controlled. When the rotating tube rotates, the base material tube or the auxiliary material tube can also be closed, which is conducive to the movement of the airflow along the established route to realize the function of the device and is easy to use.

[0031] 3. The feed pipes are arranged in sequence in the axial direction of the rotating pipe, which can ensure that when the rotating pipe is connected with the base material pipe, multiple feed pipes are closed by the circumferential outer wall of the rotating pipe, thereby improving the stability of the device.

[0032] 4. The feeding pipe is tilted to facilitate the movement of materials in the auxiliary material barrel into the rotating tube, reducing the possibility of material residue in the feeding pipe.

[0033] 5. The bends of the pipes and bends are rounded to reduce the amount of material remaining in the pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the structure of a mixing bin and a transfer bin in an embodiment of the present invention;

[0036] Figure 3 It is a cross-sectional schematic diagram of a mixing bin and a transfer bin in an embodiment of the present invention;

[0037] Figure 4 It is a cross-sectional schematic diagram of a mixing bin in an embodiment of the present invention;

[0038] Figure 5 It is a schematic diagram of the structure of the support frame and the auxiliary material barrel in an embodiment of the present invention;

[0039] Figure 6 It is a cross-sectional schematic diagram of the support frame and the rotating tube in an embodiment of the present invention.

[0040] Explanation of the reference numerals in the accompanying drawings: 1. mixing bin; 101. injection molding machine; 2. auxiliary material pipe; 3. transfer bin; 4. base material pipe; 5. sliding pipe; 6. material guide plate; 7. vent; 8. sliding member; 9. sleeve; 10. cutting hole one; 11. cutting hole two; 12. cleaning bin; 13. connecting pipe; 14. exhaust pipe; 15. material extraction pipe; 16. auxiliary material cylinder; 17. material discharge pipe; 18. support frame; 19. rotating pipe; 20. rotating member; 21. rotating block; 22. bending groove one; 23. bending groove two; 24. air inlet pipe; 25. through groove one; 26. through groove two. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0042] The following is combined with Figure 1 -Attached Figure 6 The present invention is described in further detail.

[0043] The embodiment of the present invention discloses an injection molding device for producing plastic cups. Figures 1 to 6 , an injection molding device for producing plastic cups, including a mixing and cleaning component and a feeding control component.

[0044] Reference Figures 1 to 4 The mixing and cleaning component includes a mixing part and a cleaning part.

[0045] Reference Figure 2 and Figure 3 In order to solve the problem of material accumulation and material agglomeration caused by premature mixing of base material and auxiliary material in the prior art, the following structure is adopted: the mixing part includes a mixing bin 1, an auxiliary material pipe 2, a transfer bin 3, a base material pipe 4, a sliding pipe 5, a material guide plate 6, a vent 7 and a sliding part 8.

[0046] Reference Figure 1The bottom of the mixing bin 1 is connected to the input hole of the injection molding machine 101, and the material in the mixing bin 1 enters the injection molding machine 101 downward for injection molding. A valve is provided at the bottom of the mixing bin 1 to control the connection or closure of the mixing bin 1 and the injection molding machine 101. The auxiliary material pipe 2 is connected to the side wall of the mixing bin 1, and the inner wall of the auxiliary material pipe 2 is tangent to the inner wall of the mixing bin 1. The auxiliary material enters the mixing bin 1 through the auxiliary material pipe 2. When feeding, the auxiliary material is driven to move by the airflow. Under the guidance of the inner wall of the mixing bin 1, the airflow discharged from the auxiliary material pipe 2 moves along the circumference of the mixing bin 1, driving the auxiliary material to move along the circumference of the mixing bin 1, which is conducive to the uniform mixing of the auxiliary material and the base material.

[0047] Reference Figure 2 and Figure 3 The transfer bin 3 is arranged at the top of the mixing bin 1. A vertically extending channel is arranged at the bottom of the transfer bin 3 and the top of the mixing bin 1, so that the transfer bin 3 is connected with the mixing bin 1. The base material pipe 4 is connected with the side wall of the transfer bin 3, and the base material enters the transfer bin 3 through the base material pipe 4. The sliding pipe 5 is vertically arranged inside the transfer bin 3 and the mixing bin 1. The top of the sliding pipe 5 extends above the transfer bin 3, and the sliding pipe 5 is vertically slidably connected to the transfer bin 3. The guide plate 6 is fixedly sleeved on the sliding pipe 5. The guide plate 6 is conical, and the diameter of the guide plate 6 gradually increases from top to bottom. The guide plate 6 seals the channel between the transfer bin 3 and the mixing bin 1; when the base material is loaded, the guide plate 6 seals the channel. When the base material is unloaded, the sliding pipe 5 moves downward, and the guide plate 6 opens the channel, so that the base material falls downward along the top wall of the guide plate 6. The guide plate 6 has a guiding effect on the base material, so that the base material falls along the circumference of the mixing bin 1, which is conducive to the uniform mixing of the base material and the auxiliary material. The vent hole 7 is formed on the side wall of the sliding tube 5 in the transfer bin 3, and the vent hole 7 provides an air flow path when the base material enters the transfer bin 3. The sliding member 8 is disposed on the top of the transfer bin 3, and the sliding member 8 is used to control the vertical movement of the sliding tube 5.

[0048] When the base material is loaded, the guide plate 6 closes the passage between the transfer bin 3 and the mixing bin 1, the top of the sliding tube 5 is evacuated, and the base material enters the transfer bin 3 from the base material tube 4 under the action of the airflow. When mixing, the sliding tube 5 moves downward, the guide plate is separated from the inner wall of the passage, the transfer bin 3 is connected with the mixing bin 1, the base material moves downward under the guidance of the guide plate, and moves along the circumference of the mixing bin 1, the sliding tube 5 is evacuated, the base material tube 4 is closed, the auxiliary material in the auxiliary material tube 2 moves into the mixing bin 1 under the action of the airflow, and under the guidance of the inner wall of the mixing bin 1, the auxiliary material moves along the circumference of the mixing bin 1 and falls, so that the base material and the auxiliary material are mixed and then enter the injection molding machine 101 downward.

[0049] The above technical solution can reduce the situation that the base material and the auxiliary material are mixed too much and the long storage time is reduced, reduce the waste of materials and the need for material storage, and improve the situation that the materials are agglomerated after being stored for a long time; at the same time, the continuous mixing of small amounts of materials has a better mixing effect than the traditional method of mixing a large amount of base material and auxiliary materials. The addition ratio of the base material and the auxiliary material can be adjusted in time according to the product, and the injection molding effect is improved. And there is no need to add an additional stirring mechanism or screening mechanism for cleaning the agglomerates.

[0050] Specifically, the sliding member 8 includes a cylinder, which is disposed on the top of the transfer bin 3 , with an output end of the cylinder facing upward and connected to a support plate, and the support plate is fixedly sleeved on the top of the sliding tube 5 .

[0051] Reference Figure 2 and Figure 4 In order to clean the materials in the mixing bin 1 in time when the product type needs to be changed, the following structure is adopted: the cleaning part includes a sleeve 9, a cutting hole 10, a cutting hole 2 11, a cleaning bin 12, a connecting pipe 13 and an exhaust pipe 14.

[0052] Reference Figure 4 , the sleeve 9 is connected to the inner wall of the mixing bin 1, the sleeve 9 is sleeved on the bottom of the sliding tube 5, and the inner wall of the sleeve 9 is slidably connected to the inner wall of the sliding tube 5. The cut hole 10 is opened on the side wall of the sleeve 9, and the cut hole 2 11 is opened on the side wall of the sliding tube 5, and the cut hole 2 11 is located above the cut hole 10. The sliding tube 5 moves downward, the cut hole 10 corresponds to the cut hole 2 11, the airflow enters the cut hole 10 and the cut hole 2 11 from the auxiliary material tube 2 and moves upward along the sliding tube 5, and the auxiliary material and the base material are mixed. The sliding tube 5 moves upward, the cut hole 10 and the cut hole 2 11 are arranged vertically, the sliding tube 5 is evacuated, the airflow passes through the auxiliary material tube 2 and enters the mixing bin 1, and then enters the sliding tube 5 from the bottom of the mixing bin 1 upward, so that the material at the bottom of the mixing bin 1 moves upward along the sliding tube 5, which is convenient for cleaning the inside of the mixing bin 1.

[0053] The above technical solution is suitable for when equipment fails or the product type needs to be changed. Since this solution uses a small amount of material for continuous mixing, the difficulty of cleaning the material in the mixing bin 1 is reduced. The sliding tube 5 extracts the material, which can quickly clean the mixing bin 1, reduce the need for manual operation, improve cleaning efficiency, reduce the residual material in the mixing bin 1, and is conducive to improving product quality.

[0054] Reference Figure 2The cleaning bin 12 is arranged on the left side of the transfer bin 3. The cleaning bin 12 is used to store the materials at the bottom of the mixing bin 1 extracted by the sliding pipe 5. A valve is arranged at the bottom of the cleaning bin 12 to control the opening or closing of the switch at the bottom of the cleaning bin 12. The connecting pipe 13 is arranged at the top of the cleaning bin 12 and the top of the sliding pipe 5. The connecting pipe 13 is made of soft materials, such as rubber materials, plastic materials, etc. The exhaust pipe 14 is connected to the top of the cleaning bin 12. The exhaust pipe 14 is connected to the exhaust equipment outside to control the exhaust in the sliding pipe 5.

[0055] The feeding control assembly includes a feeding part and a control part.

[0056] Reference Figure 5 In order to facilitate the extraction of base materials and the addition of various auxiliary materials, the following structure is adopted: the feeding part includes a material extraction pipe 15, a plurality of auxiliary material cylinders 16 and a plurality of material discharge pipes 17.

[0057] Reference Figure 2 and Figure 5 The left end of the extraction pipe 15 can be connected to the base material pipe 4, multiple auxiliary material cylinders 16 correspond one-to-one to multiple discharge pipes 17, multiple discharge valves correspond one-to-one to multiple discharge pipes 17, and multiple discharge pipes 17 can all be connected to the auxiliary material pipe 2, which is convenient for timely adjustment of the required auxiliary materials according to the product.

[0058] Reference Figure 5 and Figure 6 In order to facilitate the control of the feeding of base materials and auxiliary materials, the following structure is adopted: the control part includes a support frame 18, a rotating tube 19, a rotating part 20, two rotating blocks 21, a curved groove 1 22, a curved groove 23, an air inlet pipe 24, a through groove 1 25 and a through groove 26.

[0059] The support frame 18 is arranged on the right side of the mixing bin 1, and the rotating tube 19 is rotatably arranged in the support frame 18. The rotating member 20 is used to control the rotation of the rotating tube 19. The two rotating blocks 21 are respectively fixedly connected to the two ends of the rotating tube 19. The curved groove 1 22 and the curved groove 23 are respectively opened in the two rotating blocks 21. The curved groove 1 22 is arranged in the rotating block 21 at the left end. The curved groove 1 22 and the curved groove 23 both extend upward from left to right and are both connected to the rotating tube 19. The bottom end of the curved groove 1 22 is connected to the right end of the auxiliary material tube 2. The air inlet pipe 24 is arranged on the top surface of the right side of the support frame 18. The air inlet pipe 24 can be connected to the top end of the curved groove 23. The air inlet pipe 24 is provided with an air inlet valve for controlling the connection or closure of the air inlet pipe 24. The material extraction pipe 15 is arranged on the bottom surface of the right side of the support frame 18, and the material extraction pipe 15 can be connected to the curved groove 23. The first through groove 25 is formed on the bottom surface of the rotating tube 19, and a plurality of second through grooves 26 are provided. The plurality of second through grooves 26 are all formed on the side wall of the rotating tube 19. The plurality of second through grooves 26 correspond to the plurality of discharge pipes 17 one by one, and the plurality of discharge pipes 17 are arranged in sequence in the axial direction of the rotating tube 19. The discharge pipe 17 is provided with a discharge valve.

[0060] When the through groove 1 25 on the rotating tube 19 is located at the top of the rotating tube 19, the extraction pipe 15, the second curved groove 23, and the rotating tube 19 are connected with the base material pipe 4, the exhaust pipe 14 exhausts air, and the base material enters the transfer bin 3 through the extraction pipe 15; when the through groove 1 25 on the rotating tube 19 is located at the bottom of the rotating tube 19, the air inlet pipe 24, the second curved groove 23, the rotating tube 19, the curved groove 1 22 and the auxiliary material pipe 2 are connected, the unloading valve at the bottom of the auxiliary material barrel 16 is opened, the exhaust pipe 14 exhausts air, and the auxiliary material is driven into the mixing bin 1.

[0061] The feeding of base material and auxiliary material can be controlled by controlling the rotation of the rotating tube 19. When the rotating tube 19 rotates, the base material tube 4 or the auxiliary material tube 2 can also be closed, which helps the air flow to move along a predetermined route to realize the function of the device and is easy to use.

[0062] Reference Figure 5 Specifically, the rotating member 20 includes a rotating motor fixedly connected to the support frame 18, and the output end of the rotating motor passes through the support frame 18 and is connected to the rotating block 21 on the right side.

[0063] Reference Figure 5 Furthermore, the feeding tube 17 is tilted leftward from top to bottom, so that the material in the auxiliary material barrel 16 can be moved into the rotating tube 19, thereby reducing the possibility of material residue in the feeding tube 17.

[0064] Reference Figure 2 and Figure 6 Furthermore, the bending parts of the auxiliary material pipe 2, the base material pipe 4, the connecting pipe 13, the exhaust pipe 14, the material extraction pipe 15, the first bend 22 and the second bend 23 are all rounded to reduce the possibility of material residue in the pipeline.

[0065] The implementation principle of an injection molding device for producing plastic cups according to an embodiment of the present invention is as follows:

[0066] When the base material is loaded: the rotating member 20 is started to control the rotation of the rotating tube 19, so that the rotating tube 19 rotates until the through groove 1 25 is located at the top of the rotating tube 19. The extraction pipe 15, the curved groove 23, the rotating tube 19, the curved groove 1 22 are connected with the base material pipe 4, and the exhaust pipe 14 exhausts air. The flow channel of the airflow is the extraction pipe 15, the rotating tube 19, the base material pipe 4, the vent hole 7, the sliding pipe 5, the cleaning bin 12, and the exhaust pipe 14. The end of the base material pipe 4 is placed in the cylinder where the base material is placed, so that the base material moves to the base material pipe 4 with the airflow and falls into the transfer bin 3.

[0067] When the auxiliary materials are loaded and mixed: the sliding pipe 5 moves downward, the cut hole 10 is connected with the cut hole 2 11, and the base material in the transfer bin 3 moves downward along the guide plate; the air intake valve on the air intake pipe 24 is opened, the rotating member 20 is started, and the rotation of the rotating pipe 19 is controlled, so that the rotating pipe 19 rotates until the through groove 1 25 is located at the bottom of the rotating pipe 19, and at this time, the multiple unloading pipes 17 correspond to and are connected with the multiple through grooves 2 26. The exhaust pipe 14 exhausts air, and the flow channel of the air flow is the air intake pipe 24, the rotating pipe 19, the auxiliary material pipe 2, the mixing bin 1, the cut hole 10, the cut hole 2 11, the sliding pipe 5 and the cleaning bin 12. The unloading valve at the bottom of the auxiliary material barrel 16 is opened, so that the auxiliary material moves into the mixing bin 1 along the air flow, and the auxiliary material is mixed with the base material and moves downward into the injection molding machine 101.

[0068] When the mixing bin 1 needs to be cleaned: the sliding tube 5 is located at the top, the cutting hole 10 and the cutting hole 2 11 are arranged vertically, the feeding tube 17 is connected with the rotating tube 19 through the through groove 26, the air inlet valve on the air inlet pipe 24 is opened, the air exhaust pipe 14 is exhausted, and the air flow passes through the auxiliary material pipe 2 into the mixing bin 1, and then enters the sliding tube 5 from the bottom of the mixing bin 1 upward, and the port at the bottom of the sliding tube 5 extracts the material in the mixing bin 1 to clean the material in the mixing bin 1.

[0069] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An injection molding device for producing plastic cups, comprising a mixing chamber (1) connected to an injection molding machine (101), wherein a valve is provided at the bottom of the mixing chamber (1), and wherein: Also includes: An auxiliary material pipe (2) connected to the side wall of the mixing bin (1), wherein the inner wall of the auxiliary material pipe (2) is tangent to the inner wall of the mixing bin (1); A transfer bin (3) is connected to the top of the mixing bin (1), a base material pipe (4) is connected to the side wall of the transfer bin (3), a sliding pipe (5) is vertically slidable inside the transfer bin (3) and the mixing bin (1), a conical material guide plate (6) is sleeved on the sliding pipe (5), the top of the material guide plate (6) seals the passage between the transfer bin (3) and the mixing bin (1), a vent hole (7) is provided in the portion of the sliding pipe (5) located in the transfer bin (3), and a sliding member (8) for controlling the vertical movement of the sliding pipe (5) is provided on the top of the transfer bin (3); A sleeve (9) is arranged in the middle of the mixing chamber (1) and is slidably sleeved on the bottom of the side wall of the sliding tube (5); a first cut hole (10) is opened on the side wall of the sleeve (9); and a second cut hole (11) is opened on the side wall of the sliding tube (5) and is located above the first cut hole (10); A cleaning chamber (12) is arranged on the left side of the transfer chamber (3), a connecting pipe (13) made of soft material is connected between the cleaning chamber (12) and the top of the sliding pipe (5), and an exhaust pipe (14) is connected to the cleaning chamber (12).

2. The injection molding device for producing plastic cups according to claim 1, characterized in that: The base material tube (4) is connected to a material extraction tube (15), and the auxiliary material tube (2) is connected to a plurality of auxiliary material cylinders (16) and a plurality of material discharge tubes (17). The end of the base material tube (4) and the end of the auxiliary material tube (2) are both connected to a control component, and the control component is used to control the connection or closure between the base material tube (4) and the material extraction tube (15) and the connection or closure between the auxiliary material tube (2) and the material discharge tube (17).

3. The injection molding device for producing plastic cups according to claim 2, characterized in that: The control member comprises a support frame (18), a rotating tube (19) is rotatably connected in the support frame (18), a rotating member (20) for controlling the rotation of the rotating tube (19) is provided on the support frame (18), both ends of the rotating tube (19) are fixedly connected with rotating blocks (21), a curved groove 1 (22) and a curved groove 2 (23) are respectively provided in the left rotating block (21) and the right rotating block (21), the curved groove 1 (22) and the curved groove 2 (23) both extend upward from left to right and are both connected to the rotating tube (19), the bottom end of the curved groove 1 (22) is connected to the right end of the auxiliary material tube (2), an air intake pipe (24) and an air intake valve connected to the top end of the curved groove 2 (23) are provided on the right top surface of the support frame (18), and a material extraction pipe (15) connected to the inside of the base material barrel is provided on the right bottom surface of the support frame (18); A through groove 1 (25) capable of communicating with the base material tube (4) is formed on the bottom surface of the rotating tube (19), and a plurality of through grooves 2 (26) corresponding one-to-one to the feed tubes (17) are formed on the circumferential side wall of the rotating tube (19).

4. The injection molding device for producing plastic cups according to claim 3, characterized in that: The plurality of feed tubes (17) are arranged in sequence in the axial direction of the rotating tube (19).

5. The injection molding device for producing plastic cups according to claim 4, characterized in that: The feed pipe (17) is arranged to be inclined to the left from top to bottom.

6. The injection molding device for producing plastic cups according to claim 5, characterized in that: The bending parts of the auxiliary material pipe (2), the base material pipe (4), the connecting pipe (13), the air extraction pipe (14), the material extraction pipe (15), the material discharge pipe (17), the first bending groove (22) and the second bending groove (23) are all rounded.

7. The injection molding device for producing plastic cups according to claim 1, characterized in that: The sliding member (8) comprises a cylinder disposed on the top of the transfer bin (3), the output end of the cylinder facing upward and connected to a support plate, and the support plate is fixedly sleeved on the top of the sliding tube (5).

8. The injection molding device for producing plastic cups according to claim 3, characterized in that: The rotating member (20) comprises a rotating motor fixedly connected to the support frame (18); an output end of the rotating motor passes through the support frame (18) and is connected to a rotating block (21) on the right side.

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