Drying equipment for paper product manufacturing

Abstract

The utility model discloses drying equipment for paper product manufacturing, which relates to the technical field of paper product drying and comprises a microwave dryer, a feeding component and a recycling component, the microwave dryer comprises a case main body, a feeding port, a discharging port, a discharging table, a discharging table and a conveying belt, and the feeding port and the discharging port are symmetrically fixed at two ends of the case main body. And the feeding assembly is used for feeding wet filling spherical materials and filling gaps of the paper to avoid no-load of the case main body. According to the utility model, the wet filling spherical material is filled in the gap of the paper through the material adding assembly and is used for absorbing redundant microwave energy, the no-load condition of the microwave dryer is effectively avoided, and meanwhile, the filling spherical material can be conveniently recycled and reused through the recycling assembly, so that the production cost is reduced. And the filling spherical material can be blocked when the collecting box is replaced, the filling spherical material is prevented from falling to the ground, and the overall operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of paper product drying, in particular to a drying device for paper product manufacturing. Background Art

[0002] Paper products are one of the most common products in people's daily lives. They are widely used, including books, newspapers, paper towels, paper cups, etc. The production process of paper products includes the following steps: pulp preparation, pulp forming, paper pressing and drying, coating and printing, cutting and packaging;

[0003] Among them, the microwave dryer is a new type of paper drying equipment. During drying, microwave energy directly acts on the medium molecules and is converted into heat energy. Due to the penetrating properties of microwaves, the inside and outside of the medium are heated simultaneously, and no heat conduction is required, so the heating speed is very fast. At the same time, regardless of the shape of the object, since the inside and outside of the medium of the object are heated simultaneously, the temperature difference between the inside and outside of the material is small, and the heating is uniform. The situation of external scorching and internal internal generation that occurs in conventional heating will not occur, which greatly improves the paper drying quality.

[0004] When a microwave dryer is drying single boards, the paper is mostly placed manually, so there are gaps between adjacent papers. This will cause the blank areas of the product to be unloaded when the equipment is actually running. The microwaves generated by the microwave dryer cannot be fully absorbed, which will cause excessive heating of the parts of the microwave dryer itself, thus affecting the service life of the equipment. Based on this, a drying equipment for paper product manufacturing is provided. Utility Model Content

[0005] The purpose of the utility model is to provide a drying device for paper product manufacturing in order to solve the above-mentioned background problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drying device for paper product manufacturing, comprising a microwave dryer consisting of a chassis main body, a feed port, a discharge port, a discharge platform, and a conveyor belt, wherein the feed port and the discharge port are symmetrically fixed at both ends of the chassis main body, the discharge platform and the discharge platform are respectively fixed at one end of the feed port and the discharge port, and the conveyor belt sequentially passes through the discharge platform, the feed port, the chassis main body, the discharge port, and the discharge platform, and the chassis main body, the feed port, the discharge port, the discharge platform, and the discharge platform are provided with a driving component for driving the conveyor belt to transport and operate, the top of the discharge platform is provided with a feeding component, and the end of the discharge platform away from the discharge port is provided with a recovery component;

[0007] The material adding component is used to put in moist filling spherical materials to fill the gaps between the papers to prevent the main body of the chassis from being empty;

[0008] The recycling component is used to collect the dried filling spherical material, so as to realize the recycling and reuse of the filling spherical material;

[0009] The recycling component includes a material guiding unit, a blocking unit, and a collection box;

[0010] The material guiding unit is used to guide the filled spherical material to the internal collection box for collection, and the blocking unit is used to block with the material guiding unit and to replace the full collection box.

[0011] As a further solution of the utility model: the feeding assembly includes a fixed plate, a hopper, a quantitative feeding valve, a fixed bracket, and an infrared sensor;

[0012] The fixed plates are symmetrically fixed to the tops of both sides of the unloading platform, the hopper is fixed in the middle of the two fixed plates, the quantitative discharge valve is installed at the bottom of the hopper and the driving motor of the quantitative discharge valve is installed on the outside of the fixed plates, the fixed plates are used to hold the moist filling spherical materials, and the quantitative discharge valve is used to realize the quantitative discharge operation of the filling spherical materials;

[0013] The fixed bracket is fixed to one end of the outer wall of the fixed plate, the infrared sensor is installed on the inner side of the fixed bracket and protrudes to the bottom of the fixed bracket, the infrared sensor is located directly above the conveyor belt, and the infrared sensor is used to detect the paper on the upper end of the conveyor belt;

[0014] The driving motor and the infrared sensor of the quantitative discharging valve are connected to the external controller through wires, and the external controller controls the operation of the driving motor through the detection signal of the infrared sensor.

[0015] As a further solution of the utility model: the material guiding unit includes a separation table, a feeding roller, an inclined material guiding plate, and a material discharge port;

[0016] The separation table is fixedly installed at one end of the unloading table, and the feed roller is rotatably installed on the inner side of the separation table, and the top level of the feed roller is translated with the upper level of the conveyor belt, so as to allow the paper to move from the conveyor belt to the upper surface of the feed roller for unloading;

[0017] The inclined material guide plate is fixed to the inner side of the separation table and is located below the feeding roller, and the material discharge port is opened on the upper surface of the bottom position of the inclined material guide plate and penetrates to the lower surface;

[0018] The top of the separation table is formed with a cavity for placing a collection box, and the collection box is located directly below the discharge port. The filled spherical materials falling from the conveyor belt fall along the track of the inclined guide plate and the discharge port to the inside of the collection box for collection.

[0019] As a further solution of the utility model: the blocking unit includes a horizontal slide, a V-shaped baffle plate, a discharge port, a vertical pressure plate, and a spring;

[0020] The horizontal chute is horizontally opened on the inner side of the inclined material guide plate and passes through both sides and one end of the inclined material guide plate. The horizontal chute is connected to the material discharge port and is vertically distributed to each other.

[0021] The V-shaped baffle plate is distributed at one end of the inclined guide plate, and a folded edge of the V-shaped baffle plate is horizontally slidably connected to the inner side of the horizontal chute. The discharge port is opened at the top of the folded edge of the V-shaped baffle plate located on the inner side of the horizontal chute and penetrates to the bottom. When the discharge port is aligned with the discharge port, it is used for convenient discharge of the filled spherical material. When the discharge port is misaligned with the discharge port, it is used to block the discharge channel of the filled spherical material.

[0022] The vertical pressure plate is fixed to the bottom of the other folded edge of the V-shaped baffle plate, and the spring is fixed between the side of the inner wall of the separation table and the side of the vertical pressure plate. The vertical pressure plate is squeezed by the collection box to provide power for the horizontal movement of the V-shaped baffle plate, and the contracted spring is used to provide power for the resetting of the V-shaped baffle plate.

[0023] As a further solution of the utility model: a V-shaped limit slot is opened at the position where the side of the separation table is aligned with the horizontal slot, and the side of the V-shaped baffle plate extends through the V-shaped limit slot and is slidably connected with it. The sliding connection between the V-shaped baffle plate and the V-shaped limit slot is used to provide guidance and support for the horizontal movement of the V-shaped baffle plate.

[0024] As a further solution of the utility model: a plurality of spherical grooves are uniformly formed on the surface of the conveyor belt, and the inner wall diameter of the spherical grooves matches the outer diameter of the spherical material filled;

[0025] A plurality of the feeding rollers are evenly arranged in the horizontal direction, and the gap between the plurality of feeding rollers is larger than the outer diameter of the filled spherical material.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] By setting up a feeding component, the moist filling spherical material is filled in the middle of the paper gap to absorb excess microwave energy, effectively avoiding the microwave dryer from being empty-loaded. At the same time, by setting up a recycling component, the filling spherical material can be conveniently recycled and reused, and the filling spherical material can be sealed when the collection box is replaced to avoid the filling spherical material falling to the ground. The overall operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the utility model;

[0029] Figure 2 It is a structural schematic diagram of the material adding component of the utility model;

[0030] Figure 3 It is a structural cross-sectional view of the recycling component of the utility model;

[0031] Figure 4 It is a cross-sectional exploded view of the recycling component of the utility model.

[0032] In the figure: 1. microwave dryer; 101. chassis body; 102. feed port; 103. discharge port; 104. discharge table; 105. unloading table; 106. conveyor belt; 107. spherical groove; 2. feeding assembly; 201. fixed plate; 202. hopper; 203. quantitative unloading valve; 204. fixed bracket; 205. infrared sensor; 3. recycling assembly; 301. separation table; 302. feed roller; 303. inclined guide plate; 304. unloading port; 305. horizontal slide; 306. V-shaped baffle plate; 307. unloading port; 308. vertical pressure plate; 309. spring; 310. V-shaped limit slide; 311. collection box. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figures 1 to 4 In the embodiment of the utility model, a drying device for paper product manufacturing includes a microwave drying machine 1 composed of a chassis body 101, a feed port 102, a discharge port 103, a discharge platform 104, a discharge platform 105, and a conveyor belt 106. The feed port 102 and the discharge port 103 are symmetrically fixed at both ends of the chassis body 101, the discharge platform 104 and the discharge platform 105 are respectively fixed at one end of the feed port 102 and the discharge port 103, and the conveyor belt 106 is provided. 06 sequentially passes through the unloading platform 104, the feed port 102, the chassis body 101, the discharge port 103, and the unloading platform 105. The chassis body 101, the feed port 102, the discharge port 103, the unloading platform 104, and the unloading platform 105 are provided with a driving component for driving the conveyor belt 106 to transport. The top of the unloading platform 104 is provided with a feeding component 2, and the end of the unloading platform 105 away from the discharge port 103 is provided with a recovery component 3;

[0035] The material adding component 2 is used to put in the wet filling spherical material to fill the gaps between the papers to prevent the chassis body 101 from being empty. The recycling component 3 is used to collect the dried filling spherical material to realize the recycling and reuse of the filling spherical material.

[0036] The recovery component 3 includes a material guiding unit, a blocking unit, and a collection box 311. The material guiding unit is used to guide the filled spherical material to the internal collection box 311 for collection. The blocking unit is used to block with the material guiding unit and is used to replace the full collection box 311.

[0037] The material adding assembly 2 includes a fixed plate 201, a hopper 202, a quantitative feeding valve 203, a fixed bracket 204, and an infrared sensor 205;

[0038] The fixed plates 201 are symmetrically fixed to the tops of both sides of the discharge platform 104, the hopper 202 is fixed in the middle of the two fixed plates 201, the quantitative discharge valve 203 is installed at the bottom of the hopper 202 and the driving motor of the quantitative discharge valve 203 is installed on the outside of the fixed plate 201, the fixed plate 201 is used to hold the moist filling spherical material, and the quantitative discharge valve 203 is used to realize the quantitative discharge operation of the filling spherical material; the fixed bracket 204 is fixed to one end of the outer wall of the fixed plate 201, the infrared sensor 205 is installed on the inner side of the fixed bracket 204 and protrudes to the bottom of the fixed bracket 204, the infrared sensor 205 is located just above the conveyor belt 106, and the infrared sensor 205 is used to detect the paper on the upper end of the conveyor belt 106; the driving motor of the quantitative discharge valve 203 and the infrared sensor 205 are connected to the external controller wires through wires, and the external controller controls the operation of the driving motor through the detection signal of the infrared sensor 205;

[0039] The material guiding unit includes a separation table 301, a feeding roller 302, an inclined material guiding plate 303, and a material discharge port 304;

[0040] The separation table 301 is fixedly installed at one end of the discharge table 104, and the feed roller 302 is rotatably installed on the inner side of the separation table 301, and the top horizontal height of the feed roller 302 is translated with the upper surface horizontal height of the conveyor belt 106, so as to allow the paper to move from the conveyor belt 106 to the upper surface of the feed roller 302 for unloading; the inclined guide plate 303 is fixed on the inner side of the separation table 301 and is located below the feed roller 302, and the discharge port 304 is opened on the upper surface of the bottom position of the inclined guide plate 303 and penetrates to the lower surface; a cavity for placing a collection box 311 is formed on the top of the separation table 301, and the collection box 311 is located directly below the discharge port 304, and the filled spherical material falling from the conveyor belt 106 falls along the trajectory of the inclined guide plate 303 and the discharge port 304 to the inside of the collection box 311 for collection;

[0041] The blocking unit includes a horizontal slide 305, a V-shaped baffle plate 306, a discharge port 307, a vertical pressure plate 308, and a spring 309;

[0042] The horizontal chute 305 is horizontally opened inside the inclined material guide plate 303 and passes through both sides and one end of the inclined material guide plate 303. The horizontal chute 305 is connected with the material discharge port 304 and is vertically distributed to each other.

[0043] The V-shaped baffle plate 306 is distributed at one end of the inclined guide plate 303, and one folded edge of the V-shaped baffle plate 306 is horizontally slidably connected to the inner side of the horizontal slide groove 305, and the discharge port 307 is opened at the top of the folded edge of the V-shaped baffle plate 306 located on the inner side of the horizontal slide groove 305 and penetrates to the bottom. When the discharge port 307 is aligned with the discharge port 304, it is used to facilitate the discharge of the filled spherical material. When the discharge port 307 is misaligned with the discharge port 304, it is used to block the discharge channel of the filled spherical material; the vertical pressure plate 308 is fixed to the bottom of the other folded edge of the V-shaped baffle plate 306, and the spring 309 is fixed between the inner wall side of the separation table 301 and the side of the vertical pressure plate 308. The vertical pressure plate 308 is squeezed by the collection box 311 to provide power for the horizontal movement of the V-shaped baffle plate 306, and the contracted spring 309 is used to provide power for the reset of the V-shaped baffle plate 306.

[0044] In this embodiment, it should be supplemented that a microwave generator is disposed inside the chassis body 1 to generate microwave energy to achieve microwave drying of paper, and a dehumidification system is disposed on the top of the chassis body 1 to discharge the steam generated during the heating process;

[0045] When drying the paper, firstly, the external power supply of the feeding component 2 is turned on and the driving component of the conveyor belt 106 is started. The driving component drives the conveyor belt 106 to run. At the same time, the infrared sensor 205 detects that there is no paper on the conveyor belt 106. At this time, the external controller controls the driving motor of the quantitative discharge valve 203 to run, so that the moist filling spherical material in the hopper 202 is transported by the quantitative discharge valve 203 and falls onto the conveyor belt 106, and is driven by the conveyor belt 106 to pass through the chassis body 101;

[0046] When the wet filling spherical material laying area completely passes through the chassis body 101, the microwave generator can be started and the paper material unloading operation can be performed on the unloading platform 104. At this time, the wet filling spherical material inside the chassis body 101 can prevent the microwave generator from running without load;

[0047] When the paper moves to the bottom of the infrared sensor 205, the infrared sensor 205 detects that there is paper on the conveyor belt 106. At this time, the external controller will delay the control of the positioning discharge valve 203 to close, that is, when the paper moves to the bottom of the positioning discharge valve 203, the positioning discharge valve 203 stops running synchronously. When a gap appears between two adjacent papers, the infrared sensor 205 sends the detected signal to the external controller. At this time, the controller will delay the control of the positioning discharge valve 203 to open, that is, when the gap reaches the bottom of the quantitative discharge valve 203, the quantitative discharge valve 203 opens to discharge the material, so that the moist filling spherical material fills the gap between the papers.

[0048] Afterwards, the paper is fed into the chassis body 101 for microwave drying, and the moist filling spherical material in the gap between the paper can absorb the excess microwave to avoid microwave idling;

[0049] The dried paper is transported to the unloading platform 105 and moves to the upper end of the feeding roller 303 under the thrust of the conveyor belt 106, and then the paper is unloaded;

[0050] At the same time, the dried filling spherical material will fall from the gap of the feeding roller 303 onto the inclined material guide plate 303, slide down along its surface, pass through the feeding port 304 and the discharge port 307, and fall into the collection box 311;

[0051] When the collection box 311 is full, the collection box 311 can be pulled out from the separation table 301 (it should be noted that universal wheels are provided at the bottom of the collection box 311). As the collection box 311 moves outward, the collection box 311 releases the squeezing of the vertical pressure plate 308. At this time, the vertical pressure plate 308 will move under the elastic force of the spring 309, and the vertical pressure plate 308 will synchronously drive the V-shaped baffle plate 306 to move, so that the discharge port 307 on the V-shaped baffle plate 306 is misaligned with the discharge port 304, that is, the discharge port 304 is blocked;

[0052] At this time, the filled spherical materials are limited between the inclined guide plate 303 and the V-shaped baffle back plate 306. When the new collection box 311 is pushed in, the vertical pressure plate 308 is squeezed. At this time, the V-shaped baffle back plate 306 moves to align the discharge port 307 with the feed port 304, and all the filled spherical materials fall down. The collection operation of the filled spherical materials can be realized through this structure.

[0053] Please refer to Figures 1 to 4 A V-shaped limiting groove 310 is provided at the position where the side of the separation table 301 is aligned with the horizontal groove 305. The side of the V-shaped baffle plate 306 extends through the V-shaped limiting groove 310 and is slidably connected thereto. The sliding connection between the V-shaped baffle plate 306 and the V-shaped limiting groove 310 is used to provide guidance and support for the horizontal movement of the V-shaped baffle plate 306.

[0054] In this embodiment, when the discharge port 307 and the feed port 304 are in a misaligned state, the V-shaped baffle plate 306 can still maintain a stable horizontal state through this structure.

[0055] Please refer to Figures 1 to 4 The surface of the conveyor belt 106 is uniformly formed with a plurality of spherical grooves 107, and the inner wall diameter of the spherical grooves 107 matches the outer diameter of the spherical material filled;

[0056] A plurality of feeding rollers 302 are evenly arranged in the horizontal direction, and the gap between the plurality of feeding rollers 302 is larger than the outer diameter of the spherical material to be filled.

[0057] In this embodiment, when the filling spherical material falls onto the conveyor belt 106 through the spherical groove 107, it can be limited by the spherical groove 107 to prevent the filling spherical material from rolling, thereby ensuring the stable laying of the filling spherical material.

[0058] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A drying device for paper product manufacturing, comprising a microwave dryer (1) consisting of a chassis body (101), a feed inlet (102), a discharge outlet (103), a discharge platform (104), a discharge platform (105), and a conveyor belt (106), wherein the feed inlet (102) and the discharge outlet (103) are symmetrically fixed at two ends of the chassis body (101), and the discharge platform (104) and the discharge platform (105) are respectively fixed at the feed inlet (102). , one end of the discharge port (103), the conveyor belt (106) sequentially passes through the discharge platform (104), the feed port (102), the chassis body (101), the discharge port (103), and the unloading platform (105), and the chassis body (101), the feed port (102), the discharge port (103), the discharge platform (104), and the unloading platform (105) are provided with a driving component for driving the conveyor belt (106) to transport and operate, characterized in that: A feeding assembly (2) is disposed on the top of the material discharging platform (104), and a recovery assembly (3) is disposed on the end of the material discharging platform (105) away from the material discharging port (103); The material adding component (2) is used to put in moist spherical filling materials to fill the gaps between the papers and prevent the chassis body (101) from being empty; The recovery component (3) is used to collect the dried filling spherical material, so as to realize the recovery and reuse of the filling spherical material; The recovery component (3) comprises a material guiding unit, a blocking unit, and a collection box (311); The material guiding unit is used to guide the filled spherical material to the internal collection box (311) for collection, and the blocking unit is used to block with the material guiding unit and to replace the filled collection box (311).

2. A drying device for paper product manufacturing according to claim 1, characterized in that: The material adding assembly (2) comprises a fixed plate (201), a hopper (202), a quantitative feeding valve (203), a fixed bracket (204), and an infrared sensor (205); The fixed plates (201) are symmetrically fixed to the tops of both sides of the discharge platform (104), the hopper (202) is fixed in the middle of the two fixed plates (201), the quantitative discharge valve (203) is installed at the bottom of the hopper (202), and the driving motor of the quantitative discharge valve (203) is installed on the outside of the fixed plates (201), the fixed plates (201) are used to contain the moist filling spherical materials, and the quantitative discharge valve (203) is used to realize the quantitative discharge operation of the filling spherical materials; The fixed bracket (204) is fixed to one end of the outer wall of the fixed plate (201); the infrared sensor (205) is installed on the inner side of the fixed bracket (204) and protrudes to the bottom of the fixed bracket (204); the infrared sensor (205) is located directly above the conveyor belt (106); and the infrared sensor (205) is used to detect paper on the upper end of the conveyor belt (106); The driving motor and the infrared sensor (205) of the quantitative discharge valve (203) are connected to the external controller through wires, and the external controller controls the operation of the driving motor through the detection signal of the infrared sensor (205).

3. A drying device for paper product manufacturing according to claim 1, characterized in that: The material guiding unit comprises a separation table (301), a feeding roller (302), an inclined material guiding plate (303), and a material discharge port (304); The separation table (301) is fixedly installed at one end of the unloading table (104), and the feed roller (302) is rotatably installed on the inner side of the separation table (301), and the top level of the feed roller (302) is translated with the upper level of the conveyor belt (106), so as to allow the paper to move from the conveyor belt (106) to the upper surface of the feed roller (302) for unloading; The inclined material guide plate (303) is fixed on the inner side of the separation platform (301) and is located below the feeding roller (302); the material discharge port (304) is opened on the upper surface of the bottom position of the inclined material guide plate (303) and penetrates to the lower surface; A cavity for placing a collecting box (311) is formed on the top of the separation table (301), and the collecting box (311) is located directly below the discharge port (304). The filled spherical materials falling from the conveyor belt (106) fall along the trajectory of the inclined guide plate (303) and the discharge port (304) to the inside of the collecting box (311) for collection.

4. A drying device for paper product manufacturing according to claim 3, characterized in that: The blocking unit comprises a horizontal slide groove (305), a V-shaped material blocking plate (306), a discharge port (307), a vertical pressure plate (308), and a spring (309); The horizontal chute (305) is horizontally opened inside the inclined material guide plate (303) and passes through both sides and one end of the inclined material guide plate (303). The horizontal chute (305) is connected with the material discharge port (304) and is vertically distributed to each other. The V-shaped baffle plate (306) is distributed at one end of the inclined guide plate (303), and a folded edge of the V-shaped baffle plate (306) is horizontally slidably connected to the inner side of the horizontal slide groove (305). The discharge port (307) is opened at the top of the folded edge of the V-shaped baffle plate (306) located on the inner side of the horizontal slide groove (305) and penetrates to the bottom. When the discharge port (307) is aligned with the discharge port (304), it is used for convenient discharge of the filled spherical material. When the discharge port (307) is misaligned with the discharge port (304), it is used to block the discharge channel of the filled spherical material. The vertical pressure plate (308) is fixed to the bottom of the other folded edge of the V-shaped baffle plate (306), and the spring (309) is fixed between the inner wall side of the separation table (301) and the side of the vertical pressure plate (308). The vertical pressure plate (308) is squeezed by the collection box (311) to provide power for the horizontal movement of the V-shaped baffle plate (306), and the contracted spring (309) is used to provide power for the resetting of the V-shaped baffle plate (306).

5. A drying device for paper product manufacturing according to claim 4, characterized in that: A V-shaped limiting groove (310) is provided at a position where the side of the separation table (301) is aligned with the horizontal groove (305); the side of the V-shaped baffle plate (306) extends through the V-shaped limiting groove (310) and is slidably connected thereto; the sliding connection between the V-shaped baffle plate (306) and the V-shaped limiting groove (310) is used to provide guidance and support for the horizontal movement of the V-shaped baffle plate (306).

6. A drying device for paper product manufacturing according to claim 3, characterized in that: The surface of the conveyor belt (106) is uniformly formed with a plurality of spherical grooves (107), and the inner wall diameter of the spherical grooves (107) matches the outer diameter of the spherical material filled; A plurality of the feeding rollers (302) are evenly arranged in the horizontal direction, and a gap between the plurality of feeding rollers (302) is larger than the outer diameter of the spherical material being filled.

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