A pillow filling machine and its filling process for full-filling storage filling

Abstract

This invention relates to the field of pillow filling technology, specifically to a filling device capable of filling tea stems, cork, cassia seeds, etc. The device includes a linear pushing mechanism, a pushing tube, a feeding rack, a transfer box, a rotating mechanism, a pressing mechanism, two extrusion covers, two filling storage boxes, and two spiral conveying mechanisms. This full-filling pillow filling machine wraps the filling material with two extrusion covers and then extrudes it downwards through the feeding rack. This ensures that the filling material subsequently fed into the pillowcase is in a compressed state. Before the feeding rack rises, the two extrusion covers open to prevent the filling material from being lifted, ensuring accurate weight of the filling material squeezed into the pillowcase. The complex process described above is controlled by the pressing mechanism, positioning and locking mechanism, rotating mechanism, and elastic buffer mechanism, allowing for mechanical control of the entire process and ensuring processing speed.

Description

Technical Field

[0001] This invention relates to the field of pillow filling technology, specifically to filling devices capable of filling with tea stems, cork, cassia seeds, etc. Background Technology

[0002] Currently, it is generally known that the filling material in pillowcases is manually stuffed into the pillowcase using materials such as tea stalks, cork, and cassia seeds. Because it is done by hand, the stuffing process is slow and the filling may not be full, affecting production efficiency and product quality.

[0003] The applicant filed a Chinese patent application several years ago entitled "Pillow Core Filling Machine," with application number CN201020650255.X. This device involves placing filler material into a funnel above an airflow outlet pipe, attaching the pillow core to the outlet of the pipe, and then using a foot switch to turn on a centrifugal fan. The fan's air pressure forces the filler material into the pillow core cover. This pillow core filling machine is highly efficient and produces good filling quality. The device uses airflow to guide "tea stalks, cork, or cassia seeds" into the pillow core cover, causing it to expand and complete the filling. However, this method still lacks a certain degree of fullness after sealing, as a portion of the bag opening remains unfilled due to the clamping mechanism. Therefore, a pillow core filling machine and its filling process with improved fullness storage are needed, ensuring sufficient fullness even when the pillow core cover requires clamping. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a pillow filling machine and its filling process for achieving fullness storage filling, which can still increase the fullness of the filling even if the pillow cover needs to be installed by clamping.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides a pillow core filling machine for full-filling storage, comprising a linear pushing mechanism, a pushing tube, a feeding rack, a transfer box, a rotating mechanism, a pressing mechanism, two extrusion cover plates, two filling material storage boxes, and two screw conveying mechanisms. The transfer box is fixedly installed on the top of the pushing tube, and the top of the pushing tube is provided with an inlet communicating with the bottom of the transfer box. The outlets of the two screw conveying mechanisms are respectively connected to the top of both sides of the transfer box. The linear pushing mechanism is fixedly installed on one side of the pushing tube. The line pushing mechanism is used to squeeze the filler in the push tube into the pillow core sleeve. The feeding rack is located directly above the feed inlet and is installed on the lower pressing end of the pressing mechanism. The pressing mechanism is used to push the feeding rack vertically downward. Two extrusion cover plates are rotatably installed in the transfer box, and the extrusion cover plates are located on both sides of the feed inlet. The rotating mechanism is fixedly installed on the outside of the transfer box. The rotating mechanism is used to push the two extrusion cover plates to rotate towards the center. When the rotating mechanism pushes the extrusion cover plates to the final position, the inner plane of the extrusion cover plate is coplanar with the inner wall of the feed inlet.

[0006] Preferably, the pressing mechanism includes two sets of single-sided pressing actuators, which are located on both sides of the feeding frame. Each single-sided pressing actuator includes an internal rack, an external rack, a slide block, a slide rail, an electric push rod, a driving gear, a driven gear, and a mounting base. The slide block is fixedly installed on the outside of the transfer box, and the slide rail is slidably connected to the slide block. The top of the slide rail is fixedly connected to the feeding frame through a mounting plate. The internal rack is fixedly connected to the slide rail through a connecting plate. The driven gear meshes with the internal rack. The driving gear and the driven gear are coaxially connected through a connecting shaft, which is rotatably installed on the transfer box. The external rack meshes with the driving gear and is fixedly installed on the mounting base. The output end of the electric push rod is fixedly connected to the mounting base, and the electric push rod is used to vertically push the mounting base up and down.

[0007] Preferably, it further includes a positioning and locking mechanism, which is used to position the drive rotating mechanism to work. The positioning and locking mechanism includes a transmission guide post, a locking plate, a transmission guide slide, a horizontal slide, and a one-way locking mechanism. The horizontal slide is horizontally slidably mounted on the mounting base. The locking plate is fixedly mounted on the horizontal slide. The transmission guide post is fixedly connected to the other end of the horizontal slide. The transmission guide slide has a trapezoidal groove for the transmission guide post to slide. When the transmission guide post is located on the left side of the trapezoidal groove, the top of the locking plate is locked with the rotating mechanism. When the transmission guide post is located on the right side of the trapezoidal groove, the locking plate is separated from the rotating mechanism. The rotating mechanism is provided with an elastic buffer mechanism, which is used to extend and buffer the vertical movement of the transmission guide post. The one-way locking mechanism is fixedly mounted on the transmission guide slide and is used to block the right tail of the trapezoidal groove in one direction.

[0008] Preferably, the rotating mechanism includes a guide seat, a transmission contact plate, two arc-shaped push plates, two sliding columns, two clamping columns, multiple counterweights, and multiple guide columns. One end of each of the two arc-shaped push plates passes through the transfer box and is fixedly connected to the extrusion cover plate. The axis of the arc-shaped push plate is coaxial with the rotation axis of the extrusion cover plate. The sliding column is fixedly installed at the other end of the arc-shaped push plate and is clamped between the two clamping columns. The sliding column can slide horizontally between the two clamping columns. The elastic buffer mechanism is fixedly installed on the two clamping columns. The transmission contact plate is fixedly installed on the top of the elastic buffer mechanism and is used to contact the clamping plate. Each guide column is fixedly connected to the two clamping columns. The guide seat is fixedly installed on the push tube and is slidably connected to the guide column. The counterweight is fixedly installed at the bottom of the guide column.

[0009] Preferably, the elastic buffer mechanism includes a second guide seat, a second guide post, a first abutment spring, and a limiting plate. The second guide seat is fixedly connected to the clamping post, the second guide post is slidably connected to the second guide seat, the transmission contact plate is fixedly installed on the top of the second guide post, the limiting plate is fixedly installed on the bottom of the second guide post, and the first abutment spring is used to provide a downward elastic force to the transmission contact plate.

[0010] Preferably, the one-way locking mechanism includes a locking strip, a guide post three, and a guide seat three. The guide seat three is fixedly installed on the transmission guide slide frame. The guide post three is slidably connected to the guide seat three. The locking strip is fixedly installed on one end of the guide post three. A limit plate is provided at the other end of the guide post three. An avoidance notch for accommodating the sliding of the locking strip is provided on the transmission guide slide frame.

[0011] Preferably, the feeding frame includes a pressure tube, a slide tube, four guide pillars, two abutment springs, and an adjusting nut. The slide tube is sleeved on the outer edge of the pressure tube. The bottom of the four guide pillars is fixedly connected to the slide tube. The top of the four guide pillars passes through the pressure tube and is engaged with the adjusting nut. The pressure tube has a guide hole for the four guide pillars to pass through. The four guide pillars have external threads that engage with the four guide pillars. The two abutment springs provide a downward elastic force to the slide tube.

[0012] A filling process for a pillow core filling machine that provides full-bodied, stored filling includes the following steps:

[0013] Step 1: Replenish the filling material;

[0014] The screw conveyor works to transport and replenish the filler in the filler storage box to the transfer box.

[0015] Step 2: Press the cover plate to rotate vertically;

[0016] By pulling the transmission guide column upward with the electric push rod, the transmission guide column drives the transmission contact plate to move upward through the clamping plate, and the sliding column will push the two extrusion cover plates to rotate inward through the arc-shaped push plate.

[0017] Step 3: The feeding rack squeezes the filler between the two extrusion plates;

[0018] As the electric push rod continues to push, the internal rack continues to push the feeding frame downward, causing the feeding frame to squeeze the filling material between the two extrusion cover plates. The feeding frame can move up and down multiple times between the two extrusion cover plates to compress the filling material.

[0019] Step 4: The extrusion cover opens, and the feeding rack rises and resets;

[0020] When the electric push rod is pushed down to the final position, the transmission guide column will slide into the right channel of the trapezoidal slide. At this time, the clamping plate and the transmission contact plate are separated. The rotating mechanism drives the pressing cover plate to reset by gravity. Finally, the electric push rod is pushed down to reset the feeding rack.

[0021] Step 5: The squeezed filling is inserted into the pillowcase;

[0022] The filling material is pushed into the push tube by a linear pushing mechanism, so that the filling material is pushed into the pillow core sleeve along the push tube, thus completing the processing of the pillow core.

[0023] The beneficial effects of this invention are as follows: This pillow filling machine with full-filling storage uses two extrusion plates to wrap the filling material, and then the feeding frame extrudes the filling material downwards, increasing the density of the filling material. This ensures that the filling material subsequently fed into the pillowcase is in a compressed state. Furthermore, before the feeding frame rises, the two extrusion plates open first to prevent the filling material from being lifted, ensuring the accurate weight of the filling material squeezed into the pillowcase. The aforementioned complex working process is carried out through a pressing mechanism, a positioning and locking mechanism, a rotating mechanism, and an elastic buffer mechanism, allowing the entire working process to be mechanically controlled, ensuring the speed of the processing and making the filling process more rapid. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 This is a schematic diagram of the movement path of the filler material according to the present invention.

[0027] Figure 3This is a cross-sectional view of the present invention.

[0028] Figure 4 This is a partial front view of the present invention.

[0029] Figure 5 This is a partial three-dimensional structural diagram of the present invention.

[0030] Figure 6 This is a three-dimensional structural diagram of the rotating mechanism.

[0031] Figure 7 This is a three-dimensional structural diagram of an elastic buffer mechanism.

[0032] Figure 8 This is a partial three-dimensional structural diagram of the positioning and locking mechanism.

[0033] Figure 9 for Figure 3 A magnified view of a portion of point B.

[0034] Figure 10 This is a partial three-dimensional structural diagram of the pressing mechanism.

[0035] Explanation of reference numerals in the attached drawings: 1. Linear pushing mechanism; 2. Pushing tube; 2a. Feed inlet; 3. Feeding frame; 3a. Pressing tube; 3b. Sliding tube; 3c. Guide post four; 3d. Contact spring two; 3e. Adjusting nut; 4. Transfer box; 5. Filler storage box; 6. Extrusion cover plate; 7. Rotation mechanism; 7a. Elastic buffer mechanism; 7a1. Guide seat two; 7a2. Guide post two; 7a3. Contact spring one; 7a4. Limiting plate; 7b. Arc-shaped push plate; 7c. Sliding column; 7d. Clamping column; 7e. Counterweight block; 7f, Guide post one; 7h, Guide seat one; 7k, Transmission contact plate; 8, Pressing mechanism; 8a, Internal rack; 8b, External rack; 8c, Slide seat; 8d, Slide rail; 8e, Electric push rod; 8f, Driving gear; 8h, Driven gear; 8k, Mounting seat; 9, Screw conveying mechanism; 10, Positioning and locking mechanism; 10a, Transmission guide post; 10b, Clamping plate; 10c, Transmission guide slide; 10d, Horizontal slide seat; 10e, Trapezoidal slide groove; 10f, Clamping strip; 10h, Guide post three; 10k, Guide seat three. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example: This invention provides a pillow filling machine for full-filling storage, such as... Figure 1-3 As shown, the device includes a linear pushing mechanism 1, a pushing tube 2, a feeding rack 3, a transfer box 4, a rotating mechanism 7, a pressing mechanism 8, two extrusion cover plates 6, two filler storage boxes 5, and two screw conveying mechanisms 9. The transfer box 4 is fixedly installed on the top of the pushing tube 2. The top of the pushing tube 2 is provided with an inlet 2a that is connected to the bottom of the transfer box 4. The outlets of the two screw conveying mechanisms 9 are respectively connected to the top of the two sides of the transfer box 4. The outlet of the filler storage box 5 is connected to the inlet of the screw conveying mechanism 9. The filler added along the filler storage box 5 will be fed into the transfer box 4 by the screw conveying mechanism 9, and finally enter the pushing tube 2 along the inlet 2a. Finally, it will be pushed into the pillow core sleeve by the linear pushing mechanism 1 along the pushing tube 2. A linear pushing mechanism 1 is fixedly installed on one side of the pushing tube 2. This mechanism squeezes the filling material from the pushing tube 2 into the pillowcase. However, the overall density of the squeezed filling material is relatively poor, resulting in poor fullness of the pillowcase after filling. To solve this problem, the following design is adopted: A feeding rack 3 is located directly above the inlet 2a. The feeding rack 3 is installed at the lower end of the pressing mechanism 8. The pressing mechanism 8 pushes the feeding rack 3 vertically downwards. By pressing the feeding rack 3 downwards, the filling material "marked A" that has entered the area between the pushing tube 2 and the inlet 2a is compressed, increasing the overall density of the filling material. Thus, the filling material entering the pillowcase is in a compressed state. After sealing the pillowcase, the pillowcase is then kneaded, allowing the compressed filling material to return to its original shape, significantly improving the overall fullness. Because the working channel of the feeding rack 3 is short and the filler material inside is loose, the compression effect is not ideal. Therefore, two compression plates 6 are rotatably installed inside the transfer box 4, with the compression plates 6 located on either side of the feed inlet 2a. A rotating mechanism 7 is fixedly installed on the outside of the transfer box 4. The rotating mechanism 7 pushes the two compression plates 6 to rotate towards the center. When the rotating mechanism 7 pushes the compression plates 6 to their final position, the inner plane of the compression plates 6 is coplanar with the inner wall of the feed inlet 2a. Before the feeding rack 3 presses down, the rotating mechanism 7 drives the compression plates 6 to rotate, thus extending the entire compression channel. During the inward rotation of the compression plates 6, the filler material is compressed towards the center, improving density and achieving a more ideal compression effect. Furthermore, before the feeding rack 3 rises, the rotating mechanism 7 controls the two compression plates 6 to rotate outward, preventing the filler material from being lifted upwards by negative pressure during the rise of the feeding rack 3. This ensures precise control of the weight of the filler material pushed into the pillowcase, further guaranteeing density.

[0038] In order to achieve the downward pressure of the pressing mechanism 8 on the feeding frame 3, such as Figure 4 , Figure 5 and Figure 10As shown, the pressing mechanism 8 includes two sets of single-sided pressing actuators, which are located on both sides of the feeding frame 3. Each single-sided pressing actuator includes an internal rack 8a, an external rack 8b, a slide block 8c, a slide rail 8d, an electric push rod 8e, a driving gear 8f, a driven gear 8h, and a mounting base 8k. The slide block 8c is fixedly installed on the outside of the transfer box 4, and the slide rail 8d is slidably connected to the slide block 8c. The top of the slide rail 8d is fixedly connected to the feeding frame 3 through a mounting plate. The internal rack 8a is fixedly connected to the slide rail 8d via a connecting plate. The driven gear 8h meshes with the internal rack 8a. The driving gear 8f and the driven gear 8h are coaxially connected via a connecting shaft, which is rotatably mounted on the transfer box 4. The external rack 8b meshes with the driving gear 8f and is fixedly mounted on the mounting base 8k. The output end of the electric push rod 8e is fixedly connected to the mounting base 8k. The electric push rod 8e is used to vertically push the mounting base 8k up and down. When the electric push rod 8e pulls the external rack 8b downward, it causes the external rack 8b to drive the driving gear 8f to rotate, which in turn causes the driven gear 8h to rotate synchronously. This causes the internal rack 8a to push the feeding frame 3 downward, thus enabling the feeding frame 3 to compress the filler. The slide block 8c and the slide rail 8d guide the vertical movement of the feeding frame 3 and the internal rack 8a.

[0039] Because the pillow core needs to be filled quickly, and the rotating mechanism 7 needs to push the extrusion cover 6 inward before the filling material is squeezed, and also needs to push the extrusion cover 6 inward before the feeding rack 3 rises, using an electronically controlled method would make the entire filling process too slow, increasing manufacturing costs. To solve these problems, therefore, as... Figure 4 and Figure 5 As shown, it also includes a positioning and locking mechanism 10, which is used to position and drive the rotating mechanism 7 to work. The positioning and locking mechanism 10 includes a transmission guide post 10a, a locking plate 10b, a transmission guide slide 10c, a horizontal slide block 10d, and a one-way locking mechanism. The horizontal slide block 10d is horizontally slidably mounted on the mounting base 8k, the locking plate 10b is fixedly mounted on the horizontal slide block 10d, and the other end of the transmission guide post 10a is fixedly connected to the horizontal slide block 10d. The transmission guide slide block 10c has a trapezoidal groove 10e for the transmission guide post 10a to slide on. Figure 4 As shown, when the transmission guide post 10a is located on the left side of the trapezoidal slide 10e, the top of the clamping plate 10b is engaged with the rotating mechanism 7. When the transmission guide post 10a is located on the right side of the trapezoidal slide 10e, the clamping plate 10b is disengaged from the rotating mechanism 7. In the initial state, the transmission guide post 10a is located on the right side of the trapezoidal slide 10e. Figure 4At the position shown, the pressure mechanism 8 then pulls the transmission guide column 10a upward, causing the transmission guide column 10a to slide along the right side and left side of the trapezoidal slide groove 10e. When it slides to the right side, the top of the clamping plate 10b contacts the rotating mechanism 7. Then the pressure mechanism 8 continues to pull the clamping plate 10b upward, causing the clamping plate 10b to drive the rotating mechanism 7 to move upward, so that the two extrusion cover plates 6 rotate towards the center. The rotating mechanism 7 is equipped with an elastic buffer mechanism 7a, which is used to extend and buffer the vertical movement of the transmission guide column 10a. When the two extrusion cover plates 6 rotate to the vertical position, the extrusion cover plates 6 will be unable to continue rotating. As the clamping plate 10b continues to move upward, the clamping plate 10b will pull the elastic buffer mechanism 7a upward to compress it. That is, the elastic buffer mechanism 7a is used to ensure that the outer rack 8b has room to continue moving upward. During this movement, the feeding rack 3 will compress the filler inside the extrusion cover plates 6, that is, before the filler is extruded, the rotating mechanism 7 pushes the two extrusion cover plates 6 inward.

[0040] When the pressing mechanism 8 is pulled to its final position, the transmission guide column 10a will slide to the top right side of the trapezoidal chute 10e. At this time, the clamping plate 10b separates from the rotating mechanism 7, and the rotating mechanism 7 will drive the extrusion cover plate 6 to reset and rotate. This achieves the requirement that the rotating mechanism 7 pushes the extrusion cover plate 6 inward before the feeding rack 3 rises.

[0041] The one-way locking mechanism is fixedly installed on the transmission guide slide 10c. The one-way locking mechanism is used to block the right tail of the trapezoidal slide 10e in one direction. When the transmission guide post 10a slides down, the transmission guide post 10a will pass through the one-way locking mechanism. When the transmission guide post 10a rises, the transmission guide post 10a will be blocked by the one-way locking mechanism, so that the transmission guide post 10a can slide upward along the inclined section of the trapezoidal slide 10e, ensuring that the transmission guide post 10a can move clockwise along the trapezoidal slide 10e and avoiding counterclockwise movement.

[0042] In order to enable the rotating mechanism 7 to be connected to the pallet 10b for transmission, thereby increasing the overall operating speed of the equipment, for this reason, such as Figure 5 and Figure 6As shown, the rotating mechanism 7 includes a guide seat 7h, a transmission contact plate 7k, two arc-shaped push plates 7b, two sliding columns 7c, two clamping columns 7d, multiple counterweights 7e, and multiple guide columns 7f. One end of each arc-shaped push plate 7b passes through the transfer box 4 and is fixedly connected to the extrusion cover plate 6. The axis of the arc-shaped push plate 7b is coaxial with the rotation axis of the extrusion cover plate 6. The sliding column 7c is fixedly installed at the other end of the arc-shaped push plate 7b and is clamped between the two clamping columns 7d. 7c can slide horizontally between the two clamping columns 7d. An elastic buffer mechanism 7a is fixedly installed on the two clamping columns 7d. A transmission contact plate 7k is fixedly installed on the top of the elastic buffer mechanism 7a and is used to contact the clamping plate 10b. Each guide post 7f is fixedly connected to the two clamping columns 7d. A guide seat 7h is fixedly installed on the push tube 2, and the guide post 7f and guide seat 7h are slidably connected. A counterweight 7e is fixedly installed at the bottom of the guide post 7f. When the transmission contact plate 7k is driven upwards, the elastic buffer mechanism 7a will not be compressed or deformed by the weight of the counterweight 7e because an elastic buffer mechanism 7a is also provided on the other side. The two elastic buffer mechanisms 7a can support the weight of the counterweight 7e. As the elastic buffer mechanism 7a drives the clamping columns 7d upwards, the sliding column 7c will push the extrusion cover plate 6 to rotate and move towards the center via the arc-shaped push plate 7b. When the pressing cover 6 rotates to a vertical position, the top of the counterweight 7e will abut against the guide seat 7h, preventing the pressing cover 6 from rotating further. At this time, as the transmission contact plate 7k continues to be driven upward, the transmission contact plate 7k pulls the elastic buffer mechanism 7a to be compressed. In this way, the rotating mechanism 7 can be connected to the clamping plate 10b, thereby increasing the working speed of the entire device.

[0043] like Figure 7 As shown, the elastic buffer mechanism 7a includes a second guide seat 7a1, a second guide post 7a2, a first abutment spring 7a3, and a limiting plate 7a4. The second guide seat 7a1 is fixedly connected to the clamping post 7d, and the second guide post 7a2 is slidably connected to the second guide seat 7a1. The transmission contact plate 7k is fixedly installed on the top of the second guide post 7a2, and the limiting plate 7a4 is fixedly installed on the bottom of the second guide post 7a2. The first abutment spring 7a3 provides a downward elastic force to the transmission contact plate 7k. When the transmission contact plate 7k is continuously pulled upward, the limiting plate 7a4 will be compressed. The second guide post 7a2 and the second guide seat 7a1 guide the vertical movement of the transmission contact plate 7k.

[0044] In order for the one-way snap-fit ​​mechanism to achieve the function of the one-way snap-fit ​​transmission guide post 10a, such as Figure 8As shown, the one-way locking mechanism includes a locking strip 10f, a guide post 10h, and a guide seat 10k. The guide seat 10k is fixedly mounted on the transmission guide slide 10c. The guide post 10h is slidably connected to the guide seat 10k. The locking strip 10f is fixedly mounted on one end of the guide post 10h, and a limiting circular plate is provided at the other end of the guide post 10h. The transmission guide slide 10c has an clearance notch for accommodating the sliding of the locking strip 10f. When the transmission guide post 10a slides downward, it pushes the locking strip 10f toward the clearance notch. When the transmission guide post 10a slides upward, the blocking effect of the locking strip 10f forces the transmission guide post 10a to move only along the inclined groove of the trapezoidal slide groove 10e.

[0045] In order to better control the density of the filler after compression, therefore, such as Figure 9 As shown, the feeding rack 3 includes a pressing tube 3a, a sliding tube 3b, a guide post 3c, a retaining spring 3d, and adjusting nuts 3e and 3f. The sliding tube 3b is sleeved on the outer edge of the pressing tube 3a. The bottom of the guide post 3c is fixedly connected to the sliding tube 3b, and the top of the guide post 3c passes through the pressing tube 3a and engages with the adjusting nut 3e. The pressing tube 3a has a guide hole for the guide post 3c to pass through, and the guide post 3c has an external thread that engages with it. The retaining spring 3d provides a downward elastic force to the sliding tube 3b. When the filler is pressed downward, there will be a slight difference in the amount of filler covered by the cover plate 6 each time it is pressed. By setting the guide post 3c and the retaining spring 3d, when the filler decreases, the sliding tube 3b can be pushed downward, and when the filler increases, the sliding tube 3b can be pushed upward, ensuring that the filler is compressed and compacted. In order to ensure the compactness, the pressing mechanism 8 can drive the feeding frame 3 to move up and down repeatedly. During this process, the card plate 10b will not separate from the transmission contact plate 7k.

[0046] A filling process for a pillow core filling machine that provides full-bodied, stored filling includes the following steps:

[0047] Step 1: Replenish the filling material;

[0048] The screw conveyor 9 works to transport and replenish the filler in the filler storage box 5 to the transfer box 4.

[0049] Step 2: Rotate the squeeze cover plate 6 to vertical position;

[0050] The electric push rod 8e pulls the transmission guide column 10a upward, so that the transmission guide column 10a drives the transmission contact plate 7k to move upward through the clamping plate 10b. The sliding column 7c will push the two extrusion cover plates 6 to rotate inward through the arc-shaped push plate 7b.

[0051] Step 3: The feeding rack 3 squeezes the filler between the two extrusion cover plates 6;

[0052] As the electric push rod 8e continues to push, the internal rack 8a continuously pushes the feeding frame 3 downward, causing the feeding frame 3 to squeeze the filling material between the two extrusion cover plates 6. The feeding frame 3 can move up and down multiple times between the two extrusion cover plates 6 to compress the filling material.

[0053] Step 4: The extrusion cover 6 opens, and the feeding rack 3 rises and resets;

[0054] When the electric push rod 8e is pushed down to the final position, the transmission guide column 10a will slide into the right channel of the trapezoidal slide 10e. At this time, the clamping plate 10b and the transmission contact plate 7k are separated. The rotating mechanism 7 drives the pressing cover plate 6 to reset by gravity. Finally, the electric push rod 8e is pushed down to reset the feeding rack 3.

[0055] Step 5: The squeezed filling is inserted into the pillowcase;

[0056] The linear pushing mechanism 1 pushes the filling material into the pushing tube 2, so that the filling material is pushed into the pillow core cover along the pushing tube 2, thus completing the processing of the pillow core.

[0057] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A pillow filling machine for full-filling storage, characterized in that, The system includes a linear pushing mechanism (1), a pushing tube (2), a feeding rack (3), a transfer box (4), a rotating mechanism (7), a pressing mechanism (8), two extrusion covers (6), two filler storage boxes (5), and two screw conveyor mechanisms (9). The transfer box (4) is fixedly installed on the top of the pushing tube (2). The top of the pushing tube (2) is provided with an inlet (2a) that communicates with the bottom of the transfer box (4). The outlets of the two screw conveyor mechanisms (9) are respectively connected to the top of the two sides of the transfer box (4). The linear pushing mechanism (1) is fixedly installed on one side of the pushing tube (2). The linear pushing mechanism (1) is used to squeeze the filler in the pushing tube (2) into the... Inside the pillowcase, the feeding rack (3) is located directly above the feed inlet (2a). The feeding rack (3) is installed on the lower pressing end of the pressing mechanism (8). The pressing mechanism (8) is used to push the feeding rack (3) vertically downward. Two extrusion cover plates (6) are rotatably installed in the transfer box (4), and the extrusion cover plates (6) are located on both sides of the feed inlet (2a). The rotating mechanism (7) is fixedly installed on the outside of the transfer box (4). The rotating mechanism (7) is used to push the two extrusion cover plates (6) to rotate towards the center. When the rotating mechanism (7) pushes the extrusion cover plates (6) to rotate to the final position, the inner plane of the extrusion cover plate (6) is coplanar with the inner wall of the feed inlet (2a). The pressing mechanism (8) includes two sets of single-sided pressing actuators, which are located on both sides of the feeding frame (3). Each single-sided pressing actuator includes an internal rack (8a), an external rack (8b), a slide (8c), a slide rail (8d), an electric push rod (8e), a driving gear (8f), a driven gear (8h), and a mounting base (8k). The slide (8c) is fixedly installed on the outside of the transfer box (4), and the slide rail (8d) is slidably connected to the slide (8c). The top of the slide rail (8d) is fixedly connected to the feeding frame (3) through a mounting plate. The internal rack (8a) is fixedly connected to the slide rail (8d) via a connecting plate. The driven gear (8h) meshes with the internal rack (8a). The driving gear (8f) and the driven gear (8h) are coaxially connected via a connecting shaft. The connecting shaft is rotatably mounted on the transfer box (4). The external rack (8b) meshes with the driving gear (8f). The external rack (8b) is fixedly mounted on the mounting base (8k). The output end of the electric push rod (8e) is fixedly connected to the mounting base (8k). The electric push rod (8e) is used to vertically push the mounting base (8k) up and down. It also includes a positioning and locking mechanism (10), which is used to position the rotating mechanism (7) for operation. The positioning and locking mechanism (10) includes a transmission guide post (10a), a locking plate (10b), a transmission guide slide (10c), a horizontal slide (10d), and a one-way locking mechanism. The horizontal slide (10d) is horizontally slidably mounted on the mounting base (8k). The locking plate (10b) is fixedly mounted on the horizontal slide (10d). The other end of the transmission guide post (10a) is fixedly connected to the other end of the horizontal slide (10d). The transmission guide slide (10c) has a trapezoidal groove for the transmission guide post (10a) to slide. (10e) When the transmission guide post (10a) is located on the left side of the trapezoidal slide (10e), the top of the clamping plate (10b) is engaged with the rotating mechanism (7). When the transmission guide post (10a) is located on the right side of the trapezoidal slide (10e), the clamping plate (10b) is separated from the rotating mechanism (7). The rotating mechanism (7) is provided with an elastic buffer mechanism (7a). The elastic buffer mechanism (7a) is used to buffer the vertical movement of the transmission guide post (10a) by extending the distance. The one-way clamping mechanism is fixedly installed on the transmission guide slide (10c). The one-way clamping mechanism is used to block the right tail of the trapezoidal slide (10e) in one direction.

2. The pillow filling machine for full-filling storage as described in claim 1, characterized in that, The rotating mechanism (7) includes a guide seat (7h), a transmission contact plate (7k), two arc-shaped push plates (7b), two sliding columns (7c), two clamping columns (7d), multiple counterweights (7e), and multiple guide columns (7f). One end of each of the two arc-shaped push plates (7b) passes through the transfer box (4) and is fixedly connected to the extrusion cover plate (6). The axis of the arc-shaped push plate (7b) is coaxial with the axis of rotation of the extrusion cover plate (6). The sliding column (7c) is fixedly installed at the other end of the arc-shaped push plate (7b) and is clamped between the two clamping columns (7d). 7c) It can slide horizontally between the two clamping posts (7d). The elastic buffer mechanism (7a) is fixedly installed on the two clamping posts (7d). The transmission contact plate (7k) is fixedly installed on the top of the elastic buffer mechanism (7a). The transmission contact plate (7k) is used to contact the clamping plate (10b). Each guide post (7f) is fixedly connected to the two clamping posts (7d). The guide seat (7h) is fixedly installed on the push tube (2). The guide post (7f) and the guide seat (7h) are slidably connected. The counterweight (7e) is fixedly installed on the bottom of the guide post (7f).

3. A pillow filling machine for full-filling storage as described in claim 2, characterized in that, The elastic buffer mechanism (7a) includes a second guide seat (7a1), a second guide post (7a2), a first abutment spring (7a3), and a limiting plate (7a4). The second guide seat (7a1) is fixedly connected to the clamping post (7d), the second guide post (7a2) is slidably connected to the second guide seat (7a1), the transmission contact plate (7k) is fixedly installed on the top of the second guide post (7a2), the limiting plate (7a4) is fixedly installed on the bottom of the second guide post (7a2), and the first abutment spring (7a3) is used to provide a downward elastic force to the transmission contact plate (7k).

4. A pillow filling machine for full-filling storage as described in claim 1, characterized in that, The one-way locking mechanism includes a locking strip (10f), a guide post three (10h), and a guide seat three (10k). The guide seat three (10k) is fixedly installed on the transmission guide slide (10c). The guide post three (10h) is slidably connected to the guide seat three (10k). The locking strip (10f) is fixedly installed on one end of the guide post three (10h). The other end of the guide post three (10h) is provided with a limit plate. The transmission guide slide (10c) has a clearance notch for accommodating the sliding of the locking strip (10f).

5. A pillow filling machine for full-filling storage as described in claim 2, characterized in that, The feeding rack (3) includes a pressure tube (3a), a slide tube (3b), a guide post four (3c), a second contact spring (3d), and an adjusting nut (3e). The slide tube (3b) is sleeved on the outer edge of the pressure tube (3a). The bottom of the guide post four (3c) is fixedly connected to the slide tube (3b). The top of the guide post four (3c) passes through the pressure tube (3a) and is engaged with the adjusting nut (3e). The pressure tube (3a) has a guide hole for the guide post four (3c) to pass through. The guide post four (3c) has an external thread that engages with the guide post four (3c). The second contact spring (3d) is used to provide a downward elastic force to the slide tube (3b).

6. The filling process of a pillow core filling machine for full-fill storage filling according to claim 5, characterized in that, Includes the following steps: Step 1: Replenish the filling material; The screw conveyor (9) works to transport the filler in the filler storage box (5) to the transfer box (4). Step 2: Squeeze the cover plate (6) and rotate it vertically; The transmission guide column (10a) is pulled upward by the electric push rod (8e), so that the transmission guide column (10a) drives the transmission contact plate (7k) to move upward through the clamping plate (10b). The slide column (7c) will push the two extrusion cover plates (6) to rotate inward through the arc-shaped push plate (7b). Step 3: The feeding rack (3) squeezes the filler between the two extrusion cover plates (6); As the electric push rod (8e) continues to push, the internal rack (8a) continuously pushes the feeding frame (3) downward, so that the feeding frame (3) squeezes the filling material between the two extrusion cover plates (6). The feeding frame (3) can move up and down multiple times between the two extrusion cover plates (6) to squeeze the filling material to a denser state. Step 4: The extrusion cover (6) opens, and the feeding rack (3) rises and resets; When the electric push rod (8e) is pushed down to the final position, the transmission guide column (10a) will slide into the right channel of the trapezoidal slide (10e). At this time, the clamping plate (10b) and the transmission contact plate (7k) are separated. The rotating mechanism (7) drives the extrusion cover plate (6) to reset by gravity. Finally, the electric push rod (8e) is pushed down to reset the feeding rack (3). Step 5: The squeezed filling is inserted into the pillowcase; The filling material entering the push tube (2) is pushed by the linear push mechanism (1), so that the filling material is pushed into the pillow core sleeve along the push tube (2), thus completing the processing of the pillow core.

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