A feeding device of an EPS forming machine

Abstract

The utility model discloses a kind of feeding devices of EPS forming machine, it is related to feeding device technical field, including storage hopper, inclined feeding cylinder and forming machine body, the bottom end of storage hopper is fixedly connected with the top end of inclined feeding cylinder, and one end of inclined feeding cylinder is connected with the side of forming machine body.The utility model can realize the ration of EPS granule by the telescopic opening and closing of a pair of sealing baffle by opening and closing blanking mechanism, and in opening and closing blanking process, by the collaborative design of ball head convex rod, arc column and spring, high-frequency micro-vibration is generated in the undulating motion of ball head convex rod, is transferred to sealing baffle and storage hopper, and damp EPS granule on the inner wall of storage hopper and sealing baffle side wall is shaken off using vibration effect, simultaneously, damp EPS granule on the top of sealing baffle is loosened, to facilitate being scraped off in the telescopic opening and closing of sealing baffle, avoid causing the problem of unsmooth blanking and sealing failure.

Description

Technical Field

[0001] This utility model belongs to the technical field of feeding devices, and in particular relates to a feeding device for an EPS molding machine. Background Technology

[0002] The core process of the machine that processes EPS particles into finished products of specific shapes is: "adding raw materials → heating and expansion → mold shaping → cooling and removing parts". The feeding device is a special equipment that completes the first step of "adding raw materials". Its core task is to accurately, efficiently and evenly fill the mold cavity of the molding machine with the pre-expanded and matured EPS raw materials (usually called "foam beads").

[0003] For example, CN219171464U proposes a feeding device for an EPS molding machine. Addressing the problems of existing feeding devices requiring manual operation during feeding, which is inconvenient for automatic feeding, and the inconvenience of automatically cooperating with the piston assembly for pipe cleaning during feeding, the following solution is proposed: It includes a molding machine, a feeding pipe, a storage box, and a feeding control component. One end of the feeding pipe is fixedly installed on one side of the molding machine. The storage box is fixedly installed on the top of the feeding pipe. A through hole is formed on the inner wall of the top of the feeding pipe. A discharge pipe is fixedly installed at the bottom of the storage box and is fixedly installed within the through hole. The feeding control component is located on the feeding pipe, and the discharge pipe is connected to the feeding control component. This feeding device can automatically feed material and automatically cooperate with the piston assembly for pipe cleaning during the feeding process.

[0004] The above-mentioned patent has the following defects in use:

[0005] The valve ball control relies on the up-and-down movement of a single ball to achieve sealing, which is easily affected by the humidity and particle characteristics of the material. This causes EPS particles to adhere to the surface of the float ball during the opening and closing process, affecting the feeding of EPS particles and the sealing closure of the feeding pipe. At the same time, during the process of the piston plate pushing the material, it is necessary to wait until the EPS particles are fully fed before pushing all at once. Due to the influence of EPS particle feeding and the sealing closure of the feeding pipe, time is wasted and efficiency is low. Moreover, a batch of EPS particles will accumulate in the feeding pipe, and they are prone to adhesion and clumping during the piston plate pushing and extrusion process, thus affecting the subsequent operation of the molding machine. Therefore, this utility model proposes a feeding device for an EPS molding machine. Utility Model Content

[0006] This invention provides a feeding device for an EPS molding machine. The opening and closing feeding mechanism enables quantitative feeding of EPS particles through the telescopic opening and closing of a pair of sealing baffles. During the feeding process, the ball-head protrusion, arc-shaped column, and spring work together to generate high-frequency micro-vibrations in the undulating motion of the ball-head protrusion. These vibrations are transmitted to the sealing baffles and the storage hopper, dislodging damp EPS particles from the inner wall of the storage hopper and the side wall of the sealing baffles. Simultaneously, damp EPS particles on the top of the sealing baffles are loosened and scraped off during the telescopic opening and closing of the sealing baffles, preventing feeding obstruction and sealing failure. The air-blowing feeding mechanism, combined with the assistance of tilting gravity, allows for real-time blowing of EPS particles into the molding machine body, enabling continuous feeding and blowing simultaneously. This eliminates the need to wait for sufficient feeding before a single push, reducing time waste. Furthermore, the built-in round rod creates "turbulence" in the airflow, breaking up material clumps and preventing pipe blockage. This also avoids affecting subsequent molding machine operation. In summary, this invention solves the problems in the prior art.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] The present invention relates to a feeding device for an EPS molding machine, comprising:

[0009] The equipment includes a storage hopper, an inclined feeding cylinder, and a molding machine body. The bottom end of the storage hopper is fixedly connected to the top end of the inclined feeding cylinder, and one end of the inclined feeding cylinder is connected to one side of the molding machine body.

[0010] An opening and closing feeding mechanism is provided on the storage hopper and is used to add EPS particles in the storage hopper into the inclined feeding cylinder.

[0011] An air-blowing feeding mechanism is provided on an inclined feeding cylinder and is used to add EPS particles from the inclined feeding cylinder into the molding machine body.

[0012] The opening and closing material feeding mechanism includes a pair of sealing baffles located inside the storage hopper. The opposite sides of the pair of sealing baffles are in close contact. Both inner walls of the storage hopper have through-holes, and the opposite sides of the pair of sealing baffles pass through these through-holes and are fixedly connected to L-shaped plates. A pair of sliding cylinders are fixedly connected to the outer wall of the storage hopper, and the output ends of the sliding cylinders are fixedly connected to the inner walls of the L-shaped plates. A connecting straight plate is fixedly connected to the top of each pair of L-shaped plates, and multiple cylinders are embedded in the connecting straight plate. The inner walls of the cylinders... A circular piston plate is slidably connected to the cylinder, and a circular hole is drilled on the side of the cylinder near the storage hopper. The side of the storage hopper near the connecting straight plate is provided with multiple ball-head protrusions that contact the cylinder. One end of the ball-head protrusion passes through the circular hole and extends into the cylinder to be fixedly connected to one side of the circular piston plate. A spring is sleeved on the outer wall of the ball-head protrusion, and the two ends of the spring are fixedly connected to one side of the circular piston plate and the inner wall of the cylinder, respectively. Multiple arc-shaped columns are fixedly connected to the side of the storage hopper near the connecting straight plate, and the multiple ball-head protrusions are all located on one side of the multiple arc-shaped columns.

[0013] Furthermore, a sealing cover is fitted onto the top of the storage hopper, and the outer wall of the sealing cover is in close contact with the inner wall of the storage hopper.

[0014] Furthermore, a rectangular opening is cut into the side of the storage hopper near the connecting straight plate, and a transparent observation plate is fixedly connected to the inner wall of the rectangular opening.

[0015] Furthermore, the opposite sides of the pair of sealing baffles are both arc-shaped, and the outer wall of the sealing baffle is in close contact with the inner wall of the guide opening. The L-shaped plate is in contact with the side of the storage hopper near the L-shaped plate and blocks the outside of the guide opening.

[0016] Furthermore, the air-blowing feeding mechanism includes a blower, and a pair of connecting plates are fixedly connected between the blower and the side of the inclined feeding cylinder away from the molding machine body. A blowing pipe is fixedly connected between the output end of the blower and the side of the inclined feeding cylinder away from the molding machine body, and the blowing pipe is connected to the inner wall of the inclined feeding cylinder. A plurality of built-in round rods are fixedly connected to the inner wall of the inclined feeding cylinder.

[0017] Furthermore, an electric V-shaped ball valve is fixedly connected to the outer wall of the blower pipe, and the electric V-shaped ball valve is used to adjust the airflow of the blower pipe.

[0018] Furthermore, the outer walls of each of the multiple built-in round rods are fitted with silicone sleeves.

[0019] The present invention has the following advantages over the prior art:

[0020] 1. This technical solution, through its designed opening and closing feeding mechanism, enables quantitative feeding of EPS particles via the extension and closing of a pair of sealing baffles. During the opening and closing feeding process, the ball-head protrusion, arc-shaped column, and spring work together to generate high-frequency micro-vibrations in the undulating motion of the ball-head protrusion. These vibrations are transmitted to the sealing baffles and the storage hopper, causing damp EPS particles to be dislodged from the inner wall of the storage hopper and the side wall of the sealing baffles. Simultaneously, the damp EPS particles on the top of the sealing baffles are loosened, making them easier to scrape off during the extension and closing of the sealing baffles, thus avoiding problems such as poor feeding and sealing failure.

[0021] 2. This technical solution uses an air-blowing feeding mechanism to add EPS particles into the molding machine body in real time by means of air blowing combined with tilting gravity. This achieves continuous operation of feeding and blowing at the same time, eliminating the need to wait for sufficient feeding before pushing at once, reducing time waste. The built-in round rod creates "turbulence" in the airflow to break up material clumps, prevent pipe blockage, and avoid affecting the subsequent operation of the molding machine.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of a feeding device for an EPS molding machine according to the present invention;

[0025] Figure 2 This is a partial cross-sectional and disassembled structural diagram of the feeding device of an EPS molding machine according to the present invention;

[0026] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0027] Figure 4 This is a partial cross-sectional schematic diagram of the material storage hopper and the opening and closing material discharge mechanism in this utility model;

[0028] Figure 5 This is a cross-sectional structural diagram of the material storage hopper, inclined feeding cylinder, and air-blowing feeding mechanism in this utility model.

[0029] Figure 6 This is a schematic diagram of the structure of the built-in round rod and silicone sleeve in this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Storage hopper; 2. Inclined feeding cylinder; 3. Molding machine body; 4. Sealing cover plate; 5. Transparent observation plate; 6. Opening and closing material feeding mechanism; 601. Sealing baffle; 602. Guide port; 603. L-shaped plate; 604. Slide rod cylinder; 605. Connecting straight plate; 606. Cylinder; 607. Circular piston plate; 608. Ball head protrusion rod; 609. Spring; 6010. Arc-shaped column; 7. Air blowing feeding mechanism; 701. Blower; 702. Connecting plate; 703. Air blowing pipe; 704. Electric V-type ball valve; 705. Built-in round rod; 706. Silicone sleeve. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0035] Please see Figures 1-6 As shown, the feeding device of this utility model for an EPS molding machine includes:

[0036] The material storage hopper 1, the inclined feeding cylinder 2, and the molding machine body 3 are provided. The bottom end of the material storage hopper 1 is fixedly connected to the top end of the inclined feeding cylinder 2, and one end of the inclined feeding cylinder 2 is connected to one side of the molding machine body 3.

[0037] The opening and closing feeding mechanism 6 is set on the storage hopper 1 and is used to add EPS particles in the storage hopper 1 into the inclined feeding cylinder 2.

[0038] Air blowing feeding mechanism 7 is set on inclined feeding cylinder 2 and is used to add EPS particles in inclined feeding cylinder 2 into molding machine body 3.

[0039] The opening and closing material feeding mechanism 6 includes a pair of sealing baffles 601 located inside the storage hopper 1. The opposite sides of the pair of sealing baffles 601 are in close contact. Guide openings 602 are carved into the inner walls of both sides of the storage hopper 1, and the opposite sides of the pair of sealing baffles 601 pass through the guide openings 602 and are fixedly connected to L-shaped plates 603. A pair of sliding cylinders 604 are fixedly connected to the outer wall of the storage hopper 1, and the output ends of the sliding cylinders 604 are fixedly connected to the inner walls of the L-shaped plates 603. A connecting straight plate 605 is fixedly connected to the top of each pair of L-shaped plates 603, and multiple cylinders 606 are embedded and connected on the connecting straight plate 605. The cylinders 606 are slidably connected to... A circular piston plate 607 is provided, and a circular hole is drilled on the side of the cylinder 606 near the storage hopper 1. A plurality of ball-head protrusions 608 are provided on the side of the storage hopper 1 near the connecting straight plate 605, and one end of the ball-head protrusion 608 passes through the circular hole and extends into the cylinder 606 and is fixedly connected to one side of the circular piston plate 607. A spring 609 is sleeved on the outer wall of the ball-head protrusion 608, and the two ends of the spring 609 are fixedly connected to one side of the circular piston plate 607 and the inner wall of the cylinder 606, respectively. A plurality of arc-shaped columns 6010 are fixedly connected on the side of the storage hopper 1 near the connecting straight plate 605, and the plurality of ball-head protrusions 608 are all located on one side of the plurality of arc-shaped columns 6010.

[0040] In the specific implementation process, as EPS particles are added from the storage hopper 1 to the molding machine body 3, a pair of sliding cylinders 604 drive a pair of L-shaped plates 603 to move apart, causing a pair of sealing baffles 601 to move apart as well. This opens the channel between the storage hopper 1 and the inclined feeding cylinder 2, allowing the EPS particles inside the storage hopper 1 to fall into the inclined feeding cylinder 2. As the L-shaped plates 603 move, the connecting straight plates 605 and multiple cylinders 606 on both sides move synchronously, causing multiple ball-head protrusions 608 on both sides to move along the side wall of the storage hopper 1. During the movement of the protruding rods 608, multiple ball-head protruding rods 608 sequentially contact multiple arc-shaped columns 6010. When contacting an arc-shaped column 6010, the curved surface of the arc-shaped column 6010 compresses the ball-head protruding rods 608, pushing the circular piston plate 607 to compress the spring 609. After the ball-head protruding rods 608 disengage from the arc-shaped column 6010, the elastic potential energy of the spring 609 is released, pushing the circular piston plate 607 and the ball-head protruding rods 608 to quickly reset and contact the side wall of the storage hopper 1 again. This process repeats, causing the ball-head protruding rods 608 to generate high-frequency micro-vibrations during the undulating motion, which are transmitted to the sealing baffle 601 and the storage hopper 1, utilizing... The vibration action shakes off the damp EPS particles on the inner wall of the storage hopper 1 and the side wall of the sealing baffle 601, while simultaneously loosening the damp EPS particles on the top of the sealing baffle 601. This allows the particles to move outward along the guide opening 602 of the pair of sealing baffles 601, and be scraped off by the inner wall of the storage hopper 1, avoiding problems such as poor material flow and sealing failure. The particles then fall into the inclined feeding cylinder 2. The inclined design of the inclined feeding cylinder 2 (the optimal inclination angle range is 15°-30°) reduces material flow resistance, facilitating the addition of EPS particles into the molding machine body 3. In this embodiment, the storage hopper 1 and the inclined feeding cylinder... The inner wall of 2 and the surface of the sealing baffle 601 are both coated with polytetrafluoroethylene to maintain smoothness and reduce the adhesion of EPS particles. At the same time, six cylinders 606 can be embedded on the connecting straight plate 605, and six arc-shaped columns 6010 are fixed on the side wall of the storage hopper 1. The ball head protrusion 608 corresponds one-to-one with the cylinder 606. The spring 609 has an elastic coefficient of 5-10 N / mm. The sliding cylinder 604 has a movement speed range (e.g., movement speed of 50-100 mm / s) to ensure that the contact frequency between the ball head protrusion 608 and the arc-shaped column 6010 is 50-200 Hz and the vibration amplitude is 0.1-0.5 mm.

[0041] The top of the storage hopper 1 is fitted with a sealing cover plate 4, and the outer wall of the sealing cover plate 4 is in close contact with the inner wall of the storage hopper 1.

[0042] By setting the sealing cover plate 4, the top opening of the storage hopper 1 can be sealed, reducing the entry of impurities.

[0043] Among them, a rectangular opening is cut on the side of the storage hopper 1 near the connecting straight plate 605, and a transparent observation plate 5 is fixedly connected to the inner wall of the rectangular opening.

[0044] The transparent observation panel 5 allows staff to easily observe the material feeding process inside the storage hopper 1. The surface of the transparent observation panel 5 is coated with a nano-silica layer, which maintains smoothness while also ensuring good light transmittance.

[0045] Among them, the opposite sides of the pair of sealing baffles 601 are both arc-shaped, and the outer wall of the sealing baffle 601 is in close contact with the inner wall of the guide port 602. The L-shaped plate 603 is in contact with the side of the storage hopper 1 near the L-shaped plate 603 and blocks the outside of the guide port 602.

[0046] By setting the opposite sides of the sealing baffle 601 to be arc-shaped, particles can be effectively prevented from getting stuck at the joint. The outer wall of the sealing baffle 601 is in close contact with the inner wall of the guide port 602. At the same time, a fluororubber O-ring is set on the surface of the sealing baffle 601. The O-ring is interference-fitted with the inner wall of the guide port (602) (interference amount 0.1-0.2mm), which makes the sealing baffle 601 and the guide port 602 also form a seal, preventing EPS particles from leaking out. Specific Implementation Example 2:

[0048] Please see Figure 1 , Figure 5 and Figure 6 As shown, in a preferred embodiment, the air-blowing feeding mechanism 7 includes a blower 701. A pair of connecting plates 702 are fixedly connected between the blower 701 and the side of the inclined feeding cylinder 2 away from the molding machine body 3. An air blowing pipe 703 is fixedly connected between the output end of the blower 701 and the side of the inclined feeding cylinder 2 away from the molding machine body 3. The air blowing pipe 703 is connected to the inner wall of the inclined feeding cylinder 2. A plurality of built-in round rods 705 are fixedly connected to the inner wall of the inclined feeding cylinder 2.

[0049] In the specific implementation process, the blower 701 generates a high-pressure airflow, which enters the inclined feeding cylinder 2 through the blowing pipe 703. This propels the falling EPS particles along the inclined angle towards the molding machine body 3. With the assistance of gravity, the EPS particles are added to the molding machine body 3 in real time, realizing continuous operation of feeding and blowing simultaneously. This eliminates the need to wait for sufficient feeding before pushing, reducing time waste. At the same time, the EPS particles come into contact with multiple built-in round rods 705 during the blowing process, causing the built-in round rods 705 to form "turbulence" in the airflow, breaking up material clumps and preventing pipe blockage. This also avoids affecting subsequent molding. The molding machine operates, and in this embodiment, the number of multiple built-in round rods 705 can be evenly arranged along the axis of the inclined feeding cylinder 2, with 4-6 built-in round rods 705, the distance between adjacent round rods being 100-150mm, the thickness of the silicone sleeve being 2-5mm, and the Shore hardness being 50-70A, in order to form effective turbulence. At the same time, the matching relationship between the air pressure and the particle size can be determined according to the actual use (for example, for EPS particles with a particle size of 0.5-2mm, the air pressure of the blower 701 is selected as 0.4-0.5MPa; for particles with a particle size of 2-5mm, the air pressure is selected as 0.5-0.6MPa).

[0050] An electric V-type ball valve 704 is fixedly connected to the outer wall of the air blowing pipe 703, and the electric V-type ball valve 704 is used to adjust the air blowing flow of the air blowing pipe 703.

[0051] The electric V-type ball valve 704 uses a V-shaped ball core (cut angle 30° / 60° / 90°). The ball core is driven to rotate (0°-90°) by an electric actuator, which changes the flow area between the V-shaped opening and the valve seat to achieve gas flow regulation. The specific model can be determined according to the actual use. For example, in this embodiment, the electric V-type ball valve 704 can be model VQ947H-16P DN32.

[0052] Among them, the outer walls of multiple built-in round rods 705 are all fitted with silicone sleeves 706.

[0053] The silicone sleeve 706 is fitted onto the outer wall of the round rod 705 to form a flexible covering layer, which can buffer the EPS particles when they collide with the metal round rod and reduce damage. In addition, the surface of the silicone sleeve 706 is coated with polytetrafluoroethylene, which can reduce the adhesion of EPS particles.

[0054] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0055] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0056] The working principle of this utility model is as follows:

[0057] In use, during the process of adding EPS particles from the storage hopper 1 to the molding machine body 3, a pair of sliding cylinders 604 drive a pair of L-shaped plates 603 to move apart, causing a pair of sealing baffles 601 to move apart as well. This opens the channel between the storage hopper 1 and the inclined feeding cylinder 2, allowing the EPS particles from the storage hopper 1 to fall into the inclined feeding cylinder 2. As the L-shaped plates 603 move, the connecting straight plates 605 and multiple cylinders 606 on both sides move synchronously, causing multiple ball-head protrusions 608 on both sides to move along the side wall of the storage hopper 1. During the movement of the ball-head protrusions 608, they sequentially contact multiple arc-shaped columns 6010. When contacting an arc-shaped column 6010, the curved surface of the arc-shaped column 6010 compresses the ball-head protrusion 608, pushing the circular piston plate 607 to compress the spring 609. After the ball-head protrusion 608 disengages from the arc-shaped column 6010, the elastic force of the spring 609 is released. The release mechanism pushes the circular piston plate 607 and the ball head protrusion 608 to quickly reset, making them contact the side wall of the storage hopper 1 again. This process is repeated, causing the ball head protrusion 608 to generate high-frequency micro-vibrations during its undulating motion. These vibrations are transmitted to the sealing baffle 601 and the storage hopper 1, shaking off the damp EPS particles on the inner wall of the storage hopper 1 and the side wall of the sealing baffle 601. At the same time, the damp EPS particles on the top of the sealing baffle 601 are loosened, allowing them to move outward along the guide port 602 of the pair of sealing baffles 601. They are then scraped off by the inner wall of the storage hopper 1, avoiding problems such as poor material discharge and sealing failure. The particles then fall into the inclined feeding cylinder 2. At this time, the blower 701 generates a high-pressure airflow, which enters the inclined feeding cylinder 2 through the air pipe 703. This propels the falling EPS particles to flow along the inclined angle towards the molding machine body 3. With the assistance of the inclined gravity, the EPS particles are blown into the molding machine body 3 in real time, realizing continuous operation of feeding and blowing at the same time.

[0058] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A feeding device for an EPS molding machine, characterized in that, include: The material storage hopper (1), the inclined feeding cylinder (2) and the molding machine body (3) are provided. The bottom end of the material storage hopper (1) is fixedly connected to the top end of the inclined feeding cylinder (2), and one end of the inclined feeding cylinder (2) is connected to one side of the molding machine body (3). The opening and closing feeding mechanism (6) is set on the storage hopper (1) and is used to add EPS particles in the storage hopper (1) into the inclined feeding cylinder (2); Air blowing feeding mechanism (7), the air blowing feeding mechanism (7) is disposed on the inclined feeding cylinder (2), and the air blowing feeding mechanism (7) is used to add EPS particles in the inclined feeding cylinder (2) into the molding machine body (3); The opening and closing material feeding mechanism (6) includes a pair of sealing baffles (601) located inside the storage hopper (1). The opposite sides of the pair of sealing baffles (601) are in close contact. Both inner walls of the storage hopper (1) are provided with guide openings (602). The opposite sides of the pair of sealing baffles (601) pass through the guide openings (602) and are fixedly connected to L-shaped plates (603). A pair of sliding cylinders (604) are fixedly connected to the outer wall of the storage hopper (1). The output end of the sliding cylinder (604) is fixedly connected to the inner wall of the L-shaped plate (603). The top of the pair of L-shaped plates (603) is fixedly connected to connecting straight plates (605). Multiple cylinders (606) are embedded in the connecting straight plates (605). The cylinders (606) slide inside the cylinders. A circular piston plate (607) is connected to the cylinder (606) with a circular hole drilled on the side of the storage hopper (1) near the cylinder. The storage hopper (1) is provided with a plurality of ball-head protrusions (608) that are in contact with the connecting straight plate (605). One end of the ball-head protrusion (608) passes through the circular hole and extends into the cylinder (606) and is fixedly connected to one side of the circular piston plate (607). A spring (609) is sleeved on the outer wall of the ball-head protrusion (608), and the two ends of the spring (609) are fixedly connected to one side of the circular piston plate (607) and the inner wall of the cylinder (606) respectively. A plurality of arc-shaped columns (6010) are fixedly connected to the side of the storage hopper (1) near the connecting straight plate (605), and the plurality of ball-head protrusions (608) are all located on one side of the plurality of arc-shaped columns (6010).

2. The feeding device for an EPS molding machine according to claim 1, characterized in that, The top of the storage hopper (1) is fitted with a sealing cover plate (4), and the outer wall of the sealing cover plate (4) is in close contact with the inner wall of the storage hopper (1).

3. The feeding device for an EPS molding machine according to claim 1, characterized in that, The storage hopper (1) has a rectangular opening on the side near the connecting straight plate (605), and a transparent observation plate (5) is fixedly connected to the inner wall of the rectangular opening.

4. The feeding device for an EPS molding machine according to claim 1, characterized in that, The opposite sides of the pair of sealing baffles (601) are both arc-shaped, and the outer wall of the sealing baffle (601) is in close contact with the inner wall of the guide opening (602). The L-shaped plate (603) is in contact with the side of the storage hopper (1) near the L-shaped plate (603) and is blocked on the outside of the guide opening (602).

5. The feeding device for an EPS molding machine according to claim 1, characterized in that, The air-blowing feeding mechanism (7) includes a blower (701), and a pair of connecting plates (702) are fixedly connected between the blower (701) and the side of the inclined feeding cylinder (2) away from the molding machine body (3). A blowing pipe (703) is fixedly connected between the output end of the blower (701) and the side of the inclined feeding cylinder (2) away from the molding machine body (3), and the blowing pipe (703) is connected to the inner wall of the inclined feeding cylinder (2). A plurality of built-in round rods (705) are fixedly connected to the inner wall of the inclined feeding cylinder (2).

6. The feeding device for an EPS molding machine according to claim 5, characterized in that, An electric V-type ball valve (704) is fixedly connected to the outer wall of the air blowing pipe (703), and the electric V-type ball valve (704) is used to adjust the air blowing flow of the air blowing pipe (703).

7. The feeding device for an EPS molding machine according to claim 5, characterized in that, The outer walls of the multiple built-in round rods (705) are fitted with silicone sleeves (706).

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