A 3D core production device

Abstract

The present application relates to a 3D core production equipment, and relates to the field of sanitary product production, which includes a hot air cloth unwinding mechanism; a hot air cloth glue spraying mechanism; a SAP blanking mechanism, spraying SAP particles on the side of the hot air cloth sprayed with glue, and squeezing the SAP particles; a dust-free paper unwinding mechanism; a dust-free paper first glue spraying mechanism, spraying glue on the dust-free paper released from the dust-free paper unwinding mechanism; a bonding mechanism, squeezing the side of the dust-free paper sprayed with glue and the SAP particles to bond the two; a dust-free paper second glue spraying mechanism, spraying glue on the combined dust-free paper; a hot air cloth folding mechanism, folding the part of the hot air cloth protruding from the two ends of the dust-free paper, so that the folded part of the hot air cloth is folded to the side close to the dust-free paper; a hot air cloth pressing mechanism, pressing the folded part of the hot air cloth and the dust-free paper. In this application, the two ends of the hot air cloth are folded to improve the connection stability between the hot air cloth and the dust-free paper, so that the SAP particles are not easy to leak out.

Description

Technical Field

[0001] The present application relates to the field of sanitary product production, and in particular to a 3D core production device. Background Art

[0002] The structure of existing sanitary products is mostly a liquid-permeable surface layer (dust-free paper), a liquid-impermeable bottom layer (hot air cloth) and an absorbent core (SAP) sandwiched between the two. The structure of the absorbent core is usually composed of two layers of wrapping layers and a mixture of fluff pulp and polymer sandwiched between them. The two layers of wrapping layers are hot-pressed and then cut to form a single absorbent core structure.

[0003] Regarding the above-mentioned related technologies, the 3D core structure needs to have hemming on both sides. This hemming process is difficult. Therefore, in order to reduce the difficulty, it is often chosen not to do hemming and directly bond the edge of the dust-free paper and the hot air cloth. However, this will easily cause SAP leakage. Summary of the invention

[0004] In order to improve the connection stability between dust-free paper and hot air cloth, the present application provides a 3D core production device.

[0005] The present application provides a 3D core production device, which adopts the following technical solution:

[0006] A 3D core production device, comprising:

[0007] Hot air cloth unwinding mechanism, unwinding the hot air cloth;

[0008] The hot air cloth glue spraying mechanism sprays glue on one side of the hot air cloth released from the hot air cloth unwinding mechanism;

[0009] The SAP blanking mechanism sprays SAP particles on the side of the hot air cloth sprayed with glue and squeezes the SAP particles;

[0010] A dust-free paper unwinding mechanism is used to unwind the dust-free paper;

[0011] The first dust-free paper glue spraying mechanism sprays glue on the dust-free paper released from the dust-free paper unwinding mechanism and on the side close to the hot air cloth;

[0012] The bonding mechanism squeezes the side of the dust-free paper sprayed with glue and the SAP particles so that the two are bonded to form a combination, and the SAP particles are located between the hot air cloth and the dust-free paper;

[0013] The second dust-free paper glue spraying mechanism sprays glue on the side of the combined dust-free paper away from the SAP particles;

[0014] The hot air cloth folding mechanism folds the portions of the hot air cloth protruding from the two ends of the dust-free paper, so that the folded portions of the hot air cloth are folded toward the side close to the dust-free paper;

[0015] The hot air cloth pressing mechanism presses the folded edge of the hot air cloth and the dust-free paper.

[0016] By adopting the above technical solution, the hot air cloth unwinding mechanism unwinds the hot air cloth, the hot air cloth glue spraying mechanism sprays glue on one side of the hot air cloth released from the hot air cloth unwinding mechanism, the SAP blanking mechanism sprays SAP particles on the side of the hot air cloth sprayed with glue, and extrude the SAP particles, the dust-free paper unwinding mechanism unwinds the dust-free paper, the dust-free paper first glue spraying mechanism sprays glue on the side of the dust-free paper released from the dust-free paper unwinding mechanism and close to the hot air cloth, and the combining mechanism extrude the side of the dust-free paper sprayed with glue and the SAP particles to bond the two to form The hot air cloth is combined with the dust-free paper to form a 3D core, and the SAP particles are located between the hot air cloth and the dust-free paper. The second glue spraying mechanism of the dust-free paper sprays glue on the side of the combined dust-free paper away from the SAP particles. The hot air cloth folding mechanism folds the parts of the hot air cloth protruding from the two ends of the dust-free paper, so that the folded part of the hot air cloth is folded to the side close to the dust-free paper. The hot air cloth pressing mechanism presses the folded part of the hot air cloth and the dust-free paper. At this point, the production of the 3D core is completed. Since the two ends of the hot air cloth are folded to improve the connection stability between the hot air cloth and the dust-free paper, the SAP particles are not easy to leak out.

[0017] Optionally, it also includes a frame, and the hot air cloth unwinding mechanism, the hot air cloth spraying mechanism, the SAP blanking mechanism, the dust-free paper unwinding mechanism, the dust-free paper first spraying mechanism, the combining mechanism, the dust-free paper second spraying mechanism, the hot air cloth folding mechanism and the hot air cloth pressing mechanism are all installed on the frame; the SAP blanking mechanism includes a negative pressure forming drum rotatably connected to the frame, a blanking assembly arranged on the frame and located above the negative pressure forming drum, and a SAP extrusion assembly arranged on the frame, the suction holes on the surface of the negative pressure forming drum are used to adsorb the hot air cloth, the blanking assembly is used to provide SAP particles and allow the SAP particles to fall onto the hot air cloth at the negative pressure forming drum, and the SAP extrusion assembly is used to extrude the SAP particles on the hot air cloth.

[0018] By adopting the above technical solution, the negative pressure forming drum absorbs the hot air cloth through the suction holes on its surface, and the active rotation of the negative pressure forming drum can drive the hot air cloth to move. During this process, the blanking component can make the SAP particles fall onto the hot air cloth at the negative pressure forming drum, and make the SAP particles adhere to the position on the hot air cloth where glue is sprayed, and then the SAP extrusion component extrude the SAP particles on the hot air cloth.

[0019] Optionally, the hot air cloth folding mechanism includes a suction and blowing assembly arranged on the frame for pre-folding the combination, a folding wheel rotatably arranged on the frame for pre-folding the combination, a receiving platform arranged on the frame for receiving the combination, and a folding enclosure arranged on the receiving platform for folding both ends of the combination. The suction and blowing assembly is located below the combination, and the suction and blowing assembly sucks air into the middle of the combination, and blows the sucked air to both ends of the combination after heating. The folding wheel is located above the combination, and the width of the folding wheel is smaller than the width of the dust-free paper.

[0020] By adopting the above technical scheme, when the combination passes over the suction and blowing assembly, the suction and blowing assembly sucks air into the middle of the combination, and blows the sucked air to the two ends of the combination after heating, so that the middle of the combination has a tendency to be concave downward, and the two ends of the hot air cloth have a tendency to bend upward; when the combination passes over the suction and blowing assembly, the folding wheel can press down on the middle of the combination during the rotation process, thereby deepening the degree of concavity in the middle of the combination and the arching at both ends; when the combination passes over the receiving platform, the two folding enclosures can gradually fold the two ends of the hot air cloth, so that the folded part of the hot air cloth gradually approaches the top of the dust-free paper and the part sprayed with glue, which is convenient for the subsequent hot air cloth pressing mechanism to press the folded part of the hot air cloth and the dust-free paper.

[0021] Optionally, the suction and blowing assembly includes a wind tube arranged on the frame and located between the folding wheel and the second glue spraying mechanism of the dust-free paper, a suction hopper connected to the top surface of the wind tube and located in the middle position, two blowing hoppers connected to the top surface of the wind tube and located on both sides respectively, and a heating element arranged in the blowing hopper.

[0022] By adopting the above technical solution, when the combination passes over the suction hopper and the two blowing hoppers, the suction hopper draws air from the middle of the combination into the wind tube, so that the middle of the combination has a tendency to be concave downward, and the sucked air is transported to the blowing hopper, the air is heated by the heating element, and blown to the two ends of the combination, so that the two ends of the hot air cloth have a tendency to bend upward.

[0023] Optionally, the material dropping assembly includes a batching box arranged on the frame and located above the negative pressure forming drum, two particle conveying pipes connected to the top of the batching box, a raw material hopper arranged on the particle conveying pipes, two batching wheels rotatably connected to the inside of the batching box, a batching drive component that drives the two batching wheels respectively, and a material dropping hopper arranged at the bottom of the batching box.

[0024] By adopting the above technical solution, two raw material hoppers are filled with SAP particles of different types, and the SAP particles of different types are respectively transported to the inside of the batching box through two particle conveying pipes. Two sets of batching driving components respectively drive two batching wheels to rotate in opposite directions. The rotation speed of the batching wheel can be controlled by the batching driving components, so that the feeding speed of the SAP particles driven by the batching teeth on the surface of the batching wheel can be adjusted to achieve the ratio of the two types of SAP particles.

[0025] Optionally, an unwinding adjustment mechanism is arranged on the frame and between the dust-free paper unwinding mechanism and the dust-free paper first glue spraying mechanism. The unwinding adjustment mechanism includes two unwinding linkage rods rotatably connected to the frame, an unwinding swing rod connected to one end of the unwinding linkage rod, a plurality of unwinding adjustment rollers rotatably connected to the unwinding swing rod, and a linkage assembly for linking the two unwinding linkage rods, and a coil spring is arranged between the unwinding linkage rod and the frame.

[0026] By adopting the above technical scheme, the dust-free paper passes through the upper unwinding adjustment roller and the lower unwinding adjustment roller in sequence. When a new roll of dust-free paper is replaced, the dust-free paper will be tensioned, and through the transmission of the two sprockets and the chain, the unwinding swing rod located at the bottom and the end away from the unwinding linkage rod will be tilted up, and the unwinding swing rod located at the top and the end away from the unwinding linkage rod will be lowered, and the unwinding adjustment rollers located at the upper and lower positions will be close to each other. In this process, the two unwinding swing rods can always remain parallel, so as to reduce the amount of dust-free paper wound on the unwinding adjustment roller and supply it to the negative pressure forming drum at the rear, so that a new roll of dust-free paper can be replaced without stopping the machine.

[0027] Optionally, a winding counterweight adjustment mechanism is provided on the frame and at a position at the rear end of the hot air cloth pressing mechanism, and the winding counterweight adjustment mechanism includes a winding lower swing rod rotatably provided on the frame and located at the rear end of the hot air cloth pressing mechanism, a plurality of winding lower adjustment rollers rotatably provided on the winding lower swing rod, a swinging lower counterweight block rotatably provided on one end of the winding lower swing rod away from the winding lower adjustment roller, and a plurality of winding upper adjustment rollers rotatably provided on the frame and cooperating with the winding lower adjustment roller.

[0028] By adopting the above technical scheme, it is necessary to replace the hot air cloth on the hot air cloth unwinding mechanism and the dust-free paper on the dust-free paper unwinding mechanism with new rolls. Therefore, there is a mismatch between the unwinding speed of the hot air cloth and the dust-free paper and the winding speed of the 3D core. When the winding and unwinding speeds do not match, the tension of the 3D core on the winding counterweight adjustment mechanism will change accordingly, so that the swing angle of the winding lower swing rod can change with the tension of the 3D core.

[0029] Optionally, the hot air cloth glue spraying mechanism includes a glue spraying bracket arranged on a frame, a glue spraying nozzle arranged on the glue spraying bracket, a glue spraying delivery pipe connected to the glue spraying nozzle, and a glue collecting bucket arranged on the frame and located below the glue spraying nozzle.

[0030] By adopting the above technical solution, the hot air cloth passes under the hot air cloth glue spraying mechanism, and the glue delivery pump pumps the glue to the glue spraying nozzle through the glue spraying delivery pipe. The glue is sprayed out through the glue spraying nozzle and adheres to the top of the hot air cloth, and the excess glue falls into the glue collecting bucket.

[0031] Optionally, the combining mechanism includes a combining bracket arranged on the frame, a combining driving member arranged on the combining bracket, and a combining roller rotatably connected to an output end of the combining driving member.

[0032] By adopting the above technical solution, after the dust-free paper passes through the first dust-free paper spraying mechanism, it can approach the hot air cloth on the negative pressure forming drum and finally intersect at the combining mechanism. The combining driving member drives the combining roller to extend, so that the dust-free paper and the hot air cloth are squeezed and combined by the combining roller, and the position where the glue is sprayed on the dust-free paper is bonded with the SAP particles on the hot air cloth to form a combination.

[0033] Optionally, the hot air cloth pressing mechanism includes a hot air cloth rotating roller rotatably arranged on the frame and located at the end of the receiving platform, a pressing bracket arranged on the frame and located on one side of the hot air cloth rotating roller, a pressing drive member arranged on the pressing bracket, and a pressing roller rotatably connected to the output end of the pressing drive member.

[0034] By adopting the above technical solution, the combined body passes through the space between the hot air cloth rotating roller and the pressure roller, and the pressure driving member drives the pressure roller to approach the hot air cloth rotating roller, so that the space between the pressure roller and the hot air cloth rotating roller is reduced, thereby pressing the folded edge part of the hot air cloth and the dust-free paper, thereby completing the bonding of the folded edge part of the hot air cloth and the part of the dust-free paper sprayed with glue, and the processing of the 3D core is completed.

[0035] In summary, the present application includes at least one of the following beneficial technical effects:

[0036] 1. The application folds the two ends of the hot air cloth to improve the connection stability between the hot air cloth and the dust-free paper, so that SAP particles are not easy to leak out;

[0037] 2. The suction and blowing assembly sucks air into the middle of the combination, and blows the sucked air to the two ends of the combination after heating it, so that the middle of the combination has a tendency to be concave downward, and the two ends of the hot air cloth have a tendency to bend upward; when the combination passes over the suction and blowing assembly, the folding wheel can press the middle of the combination downward during the rotation process, thereby deepening the degree of concave in the middle of the combination and arching at both ends;

[0038] 3. The speed of rotation of the batching wheel can be controlled by the batching driving component, so that the feeding speed of the SAP particles driven by the batching teeth on the surface of the batching wheel can be adjusted to achieve the ratio of the two types of SAP particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the 3D core production equipment;

[0040] Figure 2 This is a schematic diagram of the 3D core production equipment from another angle;

[0041] Figure 3 This application Figure 1 A partial enlarged schematic diagram of part A;

[0042] Figure 4 It is a schematic diagram of the SAP blanking mechanism of the 3D core production equipment;

[0043] Figure 5 It is a schematic diagram of the blanking assembly of the 3D core production equipment;

[0044] Figure 6 It is a cross-sectional view of the SAP extrusion component of the 3D core production equipment;

[0045] Figure 7 This application Figure 2 A partial enlarged schematic diagram of part B;

[0046] Figure 8 It is a schematic diagram of the hot air cloth folding mechanism of the 3D core production equipment;

[0047] Fig. 9 This application Figure 2 A partial enlarged schematic diagram of part C in the middle;

[0048] Fig.10 It is a schematic diagram of the unwinding adjustment mechanism of the 3D core production equipment;

[0049] Fig.11 It is a schematic diagram of the winding counterweight adjustment mechanism of the 3D core production equipment.

[0050] 1. Frame; 2. Hot air cloth unwinding mechanism; 3. Hot air cloth glue spraying mechanism; 31. Glue spraying bracket; 32. Glue spraying nozzle; 33. Glue spraying conveying pipe; 34. Glue collecting bucket; 4. SAP blanking mechanism; 41. Negative pressure forming drum; 42. Blanking assembly; 421. Batching box; 422. Particle conveying pipe; 423. Raw material bucket; 424. Batching wheel; 425. Batching driving component; 426. Blanking bucket; 43. SAP extrusion assembly; 431. Extrusion mounting block; 432. Extrusion spring; 433. Extrusion rack; 434. Extrusion roller; 435. Extrusion groove; 5. Dust-free paper unwinding mechanism; 6. Dust-free paper first glue spraying mechanism; 7. Combination mechanism; 71. Combination bracket; 72. Combination driving member; 73. Combination roller; 74. Combination rack; 8. Second glue spraying mechanism for dust paper; 9. Hot air cloth folding mechanism; 91. Suction and blowing assembly; 911. Air cylinder; 912. Suction bucket; 913. Blowing bucket; 92. Folding wheel; 93. Receiving platform; 94. Folding enclosure; 10. Hot air cloth pressing mechanism; 101. Hot air cloth rotating roller; 102. Pressing bracket; 103. Pressing drive member; 104. Pressing roller; 105. Pressing frame; 11. Unwinding adjustment mechanism; 111. Unwinding linkage rod; 112. Unwinding swing rod; 113. Unwinding adjustment roller; 114. Linkage assembly; 1141. Sprocket; 1142. Chain; 115. Sleeve; 116. Winding spring; 12. Winding counterweight adjustment mechanism; 121. Winding lower swing rod; 122. Winding lower adjustment roller; 123. Swinging lower counterweight block; 124. Winding upper adjustment roller. DETAILED DESCRIPTION

[0051] The following is combined with Figures 1 to 11 This application is described in further detail.

[0052] The present application embodiment discloses a 3D core production device. Figure 1 and Figure 2 The 3D core production equipment includes a frame 1, a hot air cloth unwinding mechanism 2, a hot air cloth glue spraying mechanism 3, a SAP blanking mechanism 4, a dust-free paper unwinding mechanism 5, a dust-free paper first glue spraying mechanism 6, a combining mechanism 7, a dust-free paper second glue spraying mechanism 8, a hot air cloth folding mechanism 9 and a hot air cloth pressing mechanism 10.

[0053] The hot air cloth unwinding mechanism 2 is installed at the front end position of the frame 1, and is used to unwind the hot air cloth. The hot air cloth glue spraying mechanism 3 is installed on the frame 1 and is located at the rear end position of the hot air cloth unwinding mechanism 2. The hot air cloth glue spraying mechanism 3 is used to spray glue on one side of the hot air cloth released from the hot air cloth unwinding mechanism 2. The SAP blanking mechanism 4 is installed on the frame 1 and is located at the rear end position of the hot air cloth glue spraying mechanism 3. The SAP blanking mechanism 4 is used to spray SAP particles on the side of the hot air cloth sprayed with glue and squeeze the SAP particles. The dust-free paper unwinding mechanism 5 is installed on the frame 1. The dust-free paper unwinding mechanism 5 is used to unwind the dust-free paper. The dust-free paper first glue spraying mechanism 6 is installed on the frame 1. The dust-free paper first glue spraying mechanism 6 is used to spray glue on the dust-free paper released from the dust-free paper unwinding mechanism 5 and close to the hot air cloth. The combining mechanism 7 is installed on the frame 1 and is located at the first dust-free paper glue spraying mechanism 6. Below, the combining mechanism 7 is used to extrude the side of the dust-free paper sprayed with glue with the SAP particles, so that the two are bonded to form a combination, and the SAP particles are located between the hot air cloth and the dust-free paper. The second glue spraying mechanism 8 for dust-free paper is installed on the frame 1 and is located at the rear end of the combining mechanism 7. The second glue spraying mechanism 8 for dust-free paper is used to spray glue on the side of the combined dust-free paper away from the SAP particles. The hot air cloth folding mechanism 9 is installed on the frame 1 and is located at the rear end of the second glue spraying mechanism 8 for dust-free paper. The hot air cloth folding mechanism 9 is used to fold the parts of the hot air cloth protruding from the two ends of the dust-free paper, so that the folded part of the hot air cloth is folded to the side close to the dust-free paper. The hot air cloth pressing mechanism 10 is installed on the frame 1 and is located at the rear end of the hot air cloth folding mechanism 9. The hot air cloth pressing mechanism 10 is used to press the folded part of the hot air cloth and the dust-free paper. At this point, the production of the 3D core is completed.

[0054] Reference Figure 1 and Figure 3 The hot air cloth unwinding mechanism 2 is a prior art. The hot air cloth unwinding mechanism 2 can transport the hot air cloth to the hot air cloth glue spraying mechanism 3. The hot air cloth glue spraying mechanism 3 includes a glue spraying bracket 31, a glue spraying nozzle 32, a glue spraying delivery pipe 33 and a glue collecting bucket 34. The glue spraying bracket 31 is installed on the frame 1, and the glue spraying nozzle 32 is installed at the bottom of the glue spraying bracket 31. One end of the glue spraying delivery pipe 33 is connected to the input end of the glue spraying nozzle 32, and one end of the glue spraying delivery pipe 33 away from the glue spraying nozzle 32 extends into the frame 1. A glue delivery pump for pumping glue is installed on the glue spraying delivery pipe 33, and the glue collecting bucket 34 is installed on the frame 1 and is located below the glue spraying nozzle 32.

[0055] The hot air cloth passes under the hot air cloth glue spraying mechanism 3, and the glue delivery pump pumps the glue to the glue spraying nozzle 32 through the glue spraying delivery pipe 33. The glue is sprayed out through the glue spraying nozzle 32 and adheres to the top of the hot air cloth, and the excess glue falls into the glue collecting bucket 34.

[0056] Reference Figure 4 Preferably, the SAP blanking mechanism 4 includes a negative pressure forming drum 41, a blanking assembly 42 and a SAP extrusion assembly 43. The negative pressure forming drum 41 is rotatably connected to the frame 1. The negative pressure forming drum 41 is a horizontally arranged cylindrical structure. The negative pressure forming drum 41 is provided with a plurality of suction holes along its circumferential surface. The negative pressure forming drum 41 can actively rotate, and the negative pressure forming drum 41 can adsorb the hot air cloth through the suction holes on its surface. The negative pressure forming drum 41 is a prior art. The specific structure can refer to the invention patent with announcement number CN113855400B, which will not be described in detail here. The blanking assembly 42 is installed on the frame 1 and is located above the negative pressure forming drum 41. The blanking assembly 42 can provide SAP particles and can make the SAP particles fall onto the hot air cloth at the negative pressure forming drum 41. The SAP extrusion assembly 43 is installed on the frame 1 and is located obliquely above the negative pressure forming drum 41. The SAP extrusion assembly 43 can extrude the SAP particles on the hot air cloth.

[0057] The negative pressure forming drum 41 absorbs the hot air cloth through the suction holes on its surface. The active rotation of the negative pressure forming drum 41 can drive the hot air cloth to move. During this process, the blanking component 42 can make the SAP particles fall onto the hot air cloth at the negative pressure forming drum 41, and make the SAP particles adhere to the position on the hot air cloth where glue is sprayed, and then the SAP extrusion component 43 extrude the SAP particles on the hot air cloth.

[0058] Reference Figure 4 and Figure 5 Further, the blanking assembly 42 includes a batching box 421, two particle conveying pipes 422, a raw material hopper 423, two batching wheels 424, a batching driving component 425 and a blanking hopper 426. The batching box 421 is installed on the frame 1 and is located above the negative pressure forming drum 41. The two particle conveying pipes 422 are both connected to the top of the batching box 421. There are two raw material hoppers 423, which are respectively connected to the tops of the two particle conveying pipes 422. Different types of SAP particles are contained in the two raw material hoppers 423. The two batching wheels 424 The two batching wheels 424 are rotatably connected to the inside of the batching box 421, and a plurality of batching teeth are provided on the circumferential surface of the batching wheel 424, and there is a gap between the two batching wheels 424 for particles to fall. The lower pipe openings of the two particle conveying pipes 422 are respectively located directly above the two batching wheels 424, and the batching drive component 425 is installed on the frame 1. The batching drive component 425 is set in two groups, and the two groups of batching drive components 425 respectively drive the two batching wheels 424 to rotate in opposite directions. The drop hopper 426 is connected to the bottom of the batching box 421, and the drop hopper 426 is located above the negative pressure forming drum 41. It should be noted that the batching drive component 425 can be directly connected to the motor or driven by a motor, a pulley, or a belt. The batching drive component 425 is a prior art and will not be described in detail here.

[0059] The two raw material hoppers 423 are filled with SAP particles of different types, which are respectively transported to the inside of the batching box 421 through two particle conveying pipes 422. The two groups of batching driving components 425 respectively drive the two batching wheels 424 to rotate in opposite directions. The batching driving components 425 can control the rotation speed of the batching wheels 424, so that the feeding speed of the SAP particles driven by the batching teeth on the surface of the batching wheels 424 can be adjusted to achieve the ratio of the two types of SAP particles. Since different types of SAP particles differ in water absorption speed, water absorption capacity, water retention, etc., through reasonable ratio, the excellent performance of multiple types can be combined to achieve the best use effect. After the SAP ingredients are prepared, they are discharged through the drop hopper 426 at the bottom of the ingredient box 421, and fall onto the hot air cloth at the negative pressure forming drum 41, and cover the position on the hot air cloth where glue is sprayed. The negative pressure forming drum 41 transports the hot air cloth to the SAP extrusion component 43, and the SAP extrusion component 43 is used to extrude the SAP particles on the hot air cloth so that the SAP particles can stably adhere to the hot air cloth.

[0060] Reference Figure 4 and Figure 6 Preferably, the SAP extrusion assembly 43 includes an extrusion mounting block 431, an extrusion spring 432, an extrusion frame 433 and an extrusion roller 434. The extrusion mounting block 431 is installed on the frame 1 and is located obliquely above the negative pressure forming drum 41. The extrusion mounting block 431 is located at the rear end of the blanking hopper 426. An extrusion groove 435 is opened at the bottom of the extrusion mounting block 431. A plurality of extrusion springs 432 are fixed to the top of the extrusion groove 435. The extrusion frame 433 is fixed to the bottom of the plurality of extrusion springs 432, and the extrusion frame 433 is slidably connected to the extrusion groove 435. The extrusion roller 434 is rotatably connected to the extrusion frame 433, and the axis of the extrusion roller 434 is parallel to the axis of the negative pressure forming drum 41.

[0061] The negative pressure forming drum 41 conveys the hot air cloth with SAP particles adhered to it to the bottom of the squeezing roller 434. Since the distance between the squeezing roller 434 and the negative pressure forming drum 41 is slightly smaller than the thickness of the hot air cloth plus the SAP particles, the squeezing roller 434 and the negative pressure forming drum 41 can jointly extrude the hot air cloth and the SAP particles, so that the SAP particles can adhere to the hot air cloth more stably, and when there are a little more SAP particles at a certain place on the hot air cloth, the squeezing roller 434 can flatten these SAP particles as much as possible to improve the uniformity of the SAP particles on the hot air cloth. When there are too many SAP particles at a certain place on the hot air cloth and exceed a certain limit, the squeezing spring 432 will be compressed and the squeezing roller 434 will be slightly moved up a distance to facilitate the smooth passage of the hot air cloth.

[0062] Reference Figure 1 and Figure 2, the dust-free paper unwinding mechanism 5 is the prior art, and the dust-free paper unwinding mechanism 5 can convey the dust-free paper to the dust-free paper first glue spraying mechanism 6. It should be noted that the structures of the dust-free paper first glue spraying mechanism 6 and the hot air cloth glue spraying mechanism 3 are exactly the same, both of which include a glue spraying bracket 31, a glue spraying nozzle 32, a glue spraying conveying pipe 33 and a glue collecting bucket 34, and the positional relationship and connection relationship of each component are the same. The difference between the two is that the hot air cloth glue spraying mechanism 3 sprays glue on the top surface of the hot air cloth, while the dust-free paper first glue spraying mechanism 6 sprays on the side of the dust-free paper close to the hot air cloth.

[0063] Reference Figure 7 Further, the combination mechanism 7 includes a combination bracket 71, a combination driving member 72 and a combination roller 73. The combination bracket 71 is installed on the frame 1 and is located below the first dust-free paper glue spraying mechanism 6. The combination bracket 71 is located at the rear end of the negative pressure forming drum 41. The combination driving member 72 is installed on the combination bracket 71. A combination frame 74 is installed on the output end of the combination driving member 72. The combination roller 73 is rotatably connected to the combination frame 74, and the axis of the combination roller 73 is parallel to the axis of the negative pressure forming drum 41. In this embodiment, the combination driving member 72 is a cylinder.

[0064] Reference Figure 2 and Figure 7 After the dust-free paper passes through the dust-free paper first glue spraying mechanism 6, it can approach the hot air cloth on the negative pressure forming drum 41, and finally intersect at the combining mechanism 7, and the combining roller 73 is driven to extend through the combining driving member 72, so that the dust-free paper and the hot air cloth are squeezed and combined by the combining roller 73, and the position where the glue is sprayed on the dust-free paper is bonded with the SAP particles on the hot air cloth to form a combination. It should be noted that the width of the hot air cloth is greater than the width of the dust-free paper, and the parts of the hot air cloth that exceed the dust-free paper at both ends are the parts that need to be folded later, that is, the folded parts.

[0065] Reference Figure 2 , the combination is transported to the second glue spraying mechanism 8 of the dust-free paper. It should be noted that the structures of the second glue spraying mechanism 8 of the dust-free paper and the hot air cloth glue spraying mechanism 3 are exactly the same, both of which include a glue spraying bracket 31, a glue spraying nozzle 32, a glue spraying conveying pipe 33 and a glue collecting bucket 34, and the positional relationship and connection relationship of each component are the same. The difference between the two is that the hot air cloth glue spraying mechanism 3 sprays glue on the top surface of the hot air cloth, while the second glue spraying mechanism 8 of the dust-free paper sprays glue on the side of the dust-free paper away from the hot air cloth. In addition, the glue spraying nozzle 32 of the second glue spraying mechanism 8 of the dust-free paper only sprays glue on the two ends of the dust-free paper, which is convenient for the subsequent bonding of the folded edge of the hot air cloth with the two ends of the dust-free paper.

[0066] Reference Figure 8The folding wheel 92 is rotatably connected to the frame 1 and is located at the rear end of the second glue spraying mechanism 8 of the dust-free paper. The combination passes over the suction and blowing assembly 91, the folding wheel 92 is rotatably connected to the frame 1 and is located at the rear end of the suction and blowing assembly 91, the combination passes under the folding wheel 92, the receiving platform 93 is installed on the frame 1 and is located at the rear end of the folding wheel 92, the combination passes over the receiving platform 93, and two folding enclosures 94 are symmetrically installed on the top of the receiving platform 93. The end of the folding enclosure 94 close to the folding wheel 92 is flared, and the distance between the bottoms of the two folding enclosures 94 is the width of the dust-free paper, and the farther the two folding enclosures 94 are from the position of the folding wheel 92, the more the tops of the two folding enclosures 94 gradually bend toward the ends close to each other.

[0067] When the combination passes over the suction and blowing assembly 91, the suction and blowing assembly 91 sucks air into the middle of the combination, and blows the sucked air to the two ends of the combination after heating, so that the middle of the combination has a tendency to be concave downward, and the two ends of the hot air cloth have a tendency to bend upward; when the combination passes over the suction and blowing assembly 91, since the width of the folding wheel 92 is smaller than the width of the dust-free paper, the folding wheel 92 can exert a downward pressure on the middle of the combination during its rotation, thereby deepening the degree of concavity in the middle of the combination and the arching at both ends; when the combination passes over the receiving platform 93, the flared position of the two folding enclosures 94 can tighten the two ends of the hot air cloth, and during the movement of the combination, the two folding enclosures 94 can gradually fold the two ends of the hot air cloth, so that the folded portion of the hot air cloth gradually approaches the top of the dust-free paper and the portion sprayed with glue, which is convenient for the subsequent hot air cloth pressing mechanism 10 to press the folded portion of the hot air cloth and the dust-free paper.

[0068] Preferably, the suction and blowing assembly 91 includes a wind tube 911, a suction hopper 912, two blowing hoppers 913 and a heating element. The wind tube 911 is installed on the frame 1 and is located between the second glue spraying mechanism 8 of the dust-free paper and the folding wheel 92. The suction hopper 912 is connected to the middle position of the top surface of the wind tube 911, and the top of the suction hopper 912 is an opening. The two blowing hoppers 913 are respectively connected to the two end positions of the top surface of the wind tube 911, and the top of the blowing hopper 913 is also an opening. A fan for providing wind power is installed in the wind tube 911, and the heating element is installed on the inner wall of the blowing hopper 913. In this embodiment, the heating element is a heating wire.

[0069] When the combination passes over the suction hopper 912 and the two blowing hoppers 913, the suction hopper 912 draws air from the middle of the combination into the air cylinder 911, making the middle of the combination have a tendency to be concave downward, and delivers the sucked air to the blowing hopper 913, where the air is heated by the heating element and blown toward the two ends of the combination, making the two ends of the hot air cloth have a tendency to bend upward. In addition, since the material of the hot air cloth becomes soft after heating, it is convenient to fold the folded edge of the hot air cloth later.

[0070] Reference Fig. 9 Further, the hot air cloth pressing mechanism 10 includes a hot air cloth rotating roller 101, a pressing bracket 102, a pressing drive 103 and a pressing roller 104. The middle part of the hot air cloth rotating roller 101 is rotatably connected to the frame 1 and is located at the rear end of the receiving platform 93. The pressing bracket 102 is installed on the frame 1 and is located at the rear end of the hot air cloth rotating roller 101. The pressing drive 103 is installed on the top of the pressing bracket 102. A pressing frame 105 is installed at the output end of the pressing drive 103. The pressing roller 104 is rotatably connected to the pressing frame 105, and the axis of the hot air cloth rotating roller 101 is parallel to the axis of the pressing roller 104. In this embodiment, the pressing drive 103 is a cylinder.

[0071] After the two folding enclosures 94 fold the two ends of the hot air cloth, the folded part of the hot air cloth is already quite close to the dust-free paper, and the combination passes through the space between the hot air cloth rotating roller 101 and the pressure roller 104, and the pressure driving member 103 drives the pressure roller 104 to approach the hot air cloth rotating roller 101, so that the space between the pressure roller 104 and the hot air cloth rotating roller 101 is reduced, thereby pressing the folded part of the hot air cloth and the dust-free paper, thereby completing the bonding of the folded part of the hot air cloth and the part of the dust-free paper sprayed with glue, and the processing of the 3D core is completed.

[0072] Reference Fig.10Furthermore, an unwinding adjustment mechanism 11 is installed on the frame 1 and between the dust-free paper unwinding mechanism 5 and the dust-free paper first glue spraying mechanism 6. The unwinding adjustment mechanism 11 includes two unwinding linkage rods 111, an unwinding swing rod 112, a plurality of unwinding adjustment rollers 113 and a linkage assembly 114. The two unwinding linkage rods 111 are both rotatably installed on the frame 1 and located between the dust-free paper unwinding mechanism 5 and the dust-free paper first glue spraying mechanism 6. The two unwinding linkage rods 111 are one up and one down. The two unwinding linkage rods 111 are staggered and linked by a linkage assembly 114. A sleeve 115 is installed on the frame 1. The upper unwinding linkage rod 111 is located inside the sleeve 115. A coil spring 116 is connected between the sleeve 115 and the unwinding linkage rod 111 located inside the sleeve 115. The unwinding swing rod 112 is fixed to the end of the unwinding linkage rod 111 away from the frame 1. A plurality of unwinding adjustment rollers 113 are rotatably mounted on the unwinding swing rod 112. The linkage assembly 114 includes a sprocket 1141 and a chain 1142. The sprocket 1141 is fixedly mounted on the unwinding linkage rod 111 and located at the position of the frame 1. The two sprockets 1141 are driven by the chain 1142, and the chain 1142 is meshed with the sprocket 1141.

[0073] The dust-free paper passes through the unwinding adjustment roller 113 located at the top and the unwinding adjustment roller 113 located at the bottom in sequence. After the dust-free paper on the roller of the dust-free paper unwinding mechanism 5 is used up, a new roll of dust-free paper needs to be replaced. During the process of replacing a new roll of dust-free paper, since a new roll of dust-free paper cannot be supplied, the negative pressure forming drum 41 at the rear will still drive the dust-free paper forward. Therefore, the dust-free paper will be tensioned, and through the transmission of the two sprockets 1141 and the chain 1142, the unwinding swing rod 112 at the bottom and the end away from the unwinding linkage rod 111 will be tilted up, and the unwinding swing rod 112 at the top and the end away from the unwinding linkage rod 111 will be lowered, and the unwinding adjusting rollers 113 at the upper and lower positions will be close to each other. In this process, the two unwinding swing rods 112 can always remain parallel, thereby reducing the amount of dust-free paper wound on the unwinding adjusting roller 113 and supplying it to the negative pressure forming drum 41 at the rear, so that a new roll of dust-free paper can be replaced without stopping the machine. Since a coil spring 116 is connected between the sleeve 115 and the unwinding linkage rod 111 located inside the sleeve 115 , the unwinding linkage rod 111 is driven to swing slightly when the dust-free paper passes through the unwinding linkage rod 111 normally.

[0074] Similarly, an unwinding adjustment mechanism 11 is also installed on the frame 1 and between the hot air cloth unwinding mechanism 2 and the hot air cloth glue spraying mechanism 3, and its function is also to replace a new roll of hot air cloth without stopping the machine.

[0075] Reference Fig.11Preferably, a winding counterweight adjustment mechanism 12 is installed on the frame 1 and at the rear end of the hot air cloth pressing mechanism 10. The winding counterweight adjustment mechanism 12 includes a winding lower swing rod 121, a plurality of winding lower adjustment rollers 122, a swing lower counterweight block 123, and a plurality of winding upper adjustment rollers 124. The winding lower swing rod 121 is rotatably installed on the frame 1 and is located at the rear end of the hot air cloth pressing mechanism 10. The plurality of winding lower adjustment rollers 122 are rotatably installed on the winding lower swing rod 121 and are close to the hot air cloth pressing mechanism 10. The swing lower counterweight block 123 is rotatably installed on the winding lower swing rod 121 and is away from the hot air cloth pressing mechanism 10. The plurality of winding upper adjustment rollers 124 are rotatably installed on the frame 1 and are located above the winding lower adjustment rollers 122. In this embodiment, the number of winding lower adjustment rollers 122 is two, and the number of winding upper adjustment rollers 124 is three.

[0076] The 3D core body after being compressed by the hot air cloth pressing mechanism 10 passes through the top of the winding upper adjusting roller 124 closest to the hot air cloth pressing mechanism 10, and then passes through the bottom of the winding lower adjusting roller 122 closest to the hot air cloth pressing mechanism 10, and is interspersed with the winding upper adjusting roller 124 and the winding lower adjusting roller 122 in sequence, and a winding mechanism is installed on the frame 1 at the rear end of the winding counterweight adjustment mechanism 12, and the winding mechanism is a prior art and is used for winding the 3D core body. Considering that the hot air cloth on the hot air cloth unwinding mechanism 2 and the dust-free paper on the dust-free paper unwinding mechanism 5 need to be replaced with new rolls, it is also necessary to replace the 3D core after the roller of the winding mechanism has wound up enough. Therefore, there is a mismatch between the unwinding speed of the hot air cloth and the dust-free paper and the winding speed of the 3D core. When the winding and unwinding speeds do not match, the tension of the 3D core on the winding counterweight adjustment mechanism 12 will change accordingly, so that the swing angle of the winding lower swing rod 121 can change with the tension of the 3D core. When the tension of the 3D core increases, the distance between the winding lower swing rod 121 and the winding upper adjustment roller 124 will decrease. When the tension of the 3D core decreases, the distance between the winding lower swing rod 121 and the winding upper adjustment roller 124 will increase.

[0077] The implementation principle of a 3D core production device in an embodiment of the present application is as follows: a hot air cloth unwinding mechanism 2 unwinds the hot air cloth, a hot air cloth glue spraying mechanism 3 sprays glue on one side of the hot air cloth released from the hot air cloth unwinding mechanism 2, a SAP blanking mechanism 4 sprays SAP particles on the side of the hot air cloth sprayed with glue, and squeezes the SAP particles, a dust-free paper unwinding mechanism 5 unwinds the dust-free paper, a dust-free paper first glue spraying mechanism 6 sprays glue on the side of the dust-free paper released from the dust-free paper unwinding mechanism 5 and close to the hot air cloth, and a combining mechanism 7 sprays glue on the dust-free paper. The side of the dust paper sprayed with glue is squeezed with the SAP particles to make the two bonded to form a combination, and the SAP particles are located between the hot air cloth and the dust-free paper. The second glue spraying mechanism 8 of the dust-free paper sprays glue on the side of the combined dust-free paper away from the SAP particles. The hot air cloth folding mechanism 9 folds the part of the hot air cloth protruding from the two ends of the dust-free paper so that the folded part of the hot air cloth is folded toward the side close to the dust-free paper. The hot air cloth pressing mechanism 10 presses the folded part of the hot air cloth and the dust-free paper. At this point, the production of the 3D core is completed.

[0078] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A 3D core production device, characterized in that: include: A hot air cloth unwinding mechanism (2) is used to unwind the hot air cloth; A hot air cloth glue spraying mechanism (3) is used to spray glue on one side of the hot air cloth released from the hot air cloth unwinding mechanism (2); The SAP blanking mechanism (4) sprays SAP particles on the side of the hot air cloth sprayed with glue, and squeezes the SAP particles; A dust-free paper unwinding mechanism (5) for unwinding the dust-free paper; A first dust-free paper glue spraying mechanism (6) is used to spray glue on a side of the dust-free paper released from the dust-free paper unwinding mechanism (5) and close to the hot air cloth; The bonding mechanism (7) squeezes the side of the dust-free paper sprayed with glue and the SAP particles so that the two are bonded to form a bonded body, and the SAP particles are located between the hot air cloth and the dust-free paper; A second dust-free paper glue spraying mechanism (8) is used to spray glue on the side of the combined dust-free paper away from the SAP particles; A hot air cloth folding mechanism (9) folds the portions of the hot air cloth protruding from the two ends of the dust-free paper so that the folded portions of the hot air cloth are folded toward a side close to the dust-free paper; A hot air cloth pressing mechanism (10) is used to press the folded edge of the hot air cloth and the dust-free paper; It also includes a frame (1), wherein the hot air cloth unwinding mechanism (2), the hot air cloth glue spraying mechanism (3), the SAP blanking mechanism (4), the dust-free paper unwinding mechanism (5), the dust-free paper first glue spraying mechanism (6), the combining mechanism (7), the dust-free paper second glue spraying mechanism (8), the hot air cloth folding mechanism (9) and the hot air cloth pressing mechanism (10) are all installed on the frame (1); the SAP blanking mechanism (4) includes a negative pressure forming drum (41) rotatably connected to the frame (1) , a blanking assembly (42) arranged on the frame (1) and located above the negative pressure forming drum (41), and a SAP extrusion assembly (43) arranged on the frame (1), wherein the suction holes on the surface of the negative pressure forming drum (41) are used to absorb the hot air cloth, the blanking assembly (42) is used to provide SAP particles and allow the SAP particles to fall onto the hot air cloth at the negative pressure forming drum (41), and the SAP extrusion assembly (43) is used to extrude the SAP particles on the hot air cloth; The blanking assembly (42) comprises a blanking hopper (426), and the SAP extrusion assembly (43) comprises an extrusion mounting block (431), an extrusion spring (432), an extrusion frame (433) and an extrusion roller (434). The extrusion mounting block (431) is mounted on the frame (1) and is located obliquely above the negative pressure forming drum (41). The extrusion mounting block (431) is located at the rear end of the blanking hopper (426). An extrusion groove (435) is provided at the bottom of the extrusion mounting block (431). The extrusion spring (432) is fixed to the top of the extrusion groove (435), the extrusion frame (433) is fixed to the bottom of the plurality of extrusion springs (432), and the extrusion frame (433) is slidably connected to the extrusion groove (435), the extrusion roller (434) is rotatably connected to the extrusion frame (433), the axis of the extrusion roller (434) is parallel to the axis of the negative pressure forming drum (41), and the distance between the extrusion roller (434) and the negative pressure forming drum (41) is slightly smaller than the sum of the thickness of the hot air cloth and the SAP particles; The hot air cloth folding mechanism (9) comprises a suction and blowing assembly (91) arranged on the frame (1) and pre-folding the combination, a folding wheel (92) rotatably arranged on the frame (1) and pre-folding the combination, a receiving platform (93) arranged on the frame (1) and receiving the combination, and a folding enclosure (94) arranged on the receiving platform (93) and folding the two ends of the combination, wherein the suction and blowing assembly (91) is located below the combination, the suction and blowing assembly (91) sucks air toward the middle of the combination, and blows the sucked air toward the two ends of the combination after heating, the folding wheel (92) is located above the combination, and the width of the folding wheel (92) is smaller than the width of the dust-free paper; The suction and blowing assembly (91) comprises a wind tube (911) arranged on the frame (1) and located between the folding wheel (92) and the second dust-free paper glue spraying mechanism (8), a suction hopper (912) connected to the top surface of the wind tube (911) and located in the middle, two blowing hoppers (913) connected to the top surface of the wind tube (911) and located at two sides respectively, and a heating element arranged in the blowing hopper (913).

2. The 3D core production equipment according to claim 1, characterized in that: The material dropping assembly (42) comprises a batching box (421) arranged on the frame (1) and located above the negative pressure forming drum (41), two particle conveying pipes (422) connected to the top of the batching box (421), a raw material hopper (423) arranged on the particle conveying pipes (422), two batching wheels (424) rotatably connected to the inside of the batching box (421), a batching driving component (425) for driving the two batching wheels (424) respectively, and a material dropping hopper (426) arranged at the bottom of the batching box (421).

3. The 3D core production equipment according to claim 1, characterized in that: An unwinding adjustment mechanism (11) is arranged on the frame (1) and between the dust-free paper unwinding mechanism (5) and the dust-free paper first glue spraying mechanism (6); the unwinding adjustment mechanism (11) comprises two unwinding linkage rods (111) rotatably connected to the frame (1), an unwinding swing rod (112) connected to one end of the unwinding linkage rod (111), a plurality of unwinding adjustment rollers (113) rotatably connected to the unwinding swing rod (112), and a linkage assembly (114) for linking the two unwinding linkage rods (111); and a coil spring (116) is arranged between the unwinding linkage rod (111) and the frame (1).

4. The 3D core production equipment according to claim 3, characterized in that: A winding counterweight adjustment mechanism (12) is arranged on the frame (1) and at a position located at the rear end of the hot air cloth pressing mechanism (10), and the winding counterweight adjustment mechanism (12) comprises a winding lower swing rod (121) rotatably arranged on the frame (1) and located at the rear end of the hot air cloth pressing mechanism (10), a plurality of winding lower adjustment rollers (122) rotatably arranged on the winding lower swing rod (121), a swing lower counterweight block (123) rotatably arranged on one end of the winding lower swing rod (121) away from the winding lower adjustment roller (122), and a plurality of winding upper adjustment rollers (124) rotatably arranged on the frame (1) and cooperating with the winding lower adjustment roller (122).

5. The 3D core production equipment according to claim 1, characterized in that: The hot air cloth glue spraying mechanism (3) comprises a glue spraying bracket (31) arranged on a frame (1), a glue spraying nozzle (32) arranged on the glue spraying bracket (31), a glue spraying conveying pipe (33) connected to the glue spraying nozzle (32), and a glue collecting bucket (34) arranged on the frame (1) and located below the glue spraying nozzle (32).

6. The 3D core production equipment according to claim 1, characterized in that: The combining mechanism (7) comprises a combining bracket (71) arranged on the frame (1), a combining driving member (72) arranged on the combining bracket (71), and a combining roller (73) rotatably connected to the output end of the combining driving member (72).

7. The 3D core production equipment according to claim 1, characterized in that: The hot air cloth pressing mechanism (10) comprises a hot air cloth rotating roller (101) rotatably arranged on a frame (1) and located at the end of a receiving platform (93), a pressing bracket (102) arranged on the frame (1) and located at one side of the hot air cloth rotating roller (101), a pressing drive member (103) arranged on the pressing bracket (102), and a pressing roller (104) rotatably connected to the output end of the pressing drive member (103).

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