Thermal synthesis forming device for non-woven fabric bag production

Abstract

The invention discloses a heat-seal forming device for non-woven fabric bag production, and particularly relates to the field of forming devices for non-woven fabric bag production, the heat-seal forming device comprises a heat-seal rack, a mounting box is arranged in the heat-seal rack, a plurality of hot-press assemblies are arranged in the mounting box, and each hot-press assembly comprises a hot-press plate; a plurality of connecting rods are arranged between the hot pressing plates and used for connecting the multiple hot pressing assemblies. Through the hot-pressing assembly, the pressure control assembly, the temperature control assembly and the connecting rod, different numbers of hot-pressing plates can be combined, and the combination area can be adjusted, so that the non-woven fabric folding device adapts to non-woven fabrics with different widths and different folding conditions of the non-woven fabrics. And the pressure and the temperature during heat-seal forming of the middle and the two sides of the non-woven fabric can be controlled respectively, so that the phenomenon that the thickness of the two sides and the thickness of the middle are not uniform due to folding during heat-seal forming of the non-woven fabric is adapted, and the stability of the non-woven fabric during heat-seal forming of the non-woven fabric into a non-woven fabric bag is improved.

Description

Technical Field

[0001] The invention relates to the technical field of forming devices for non-woven bag production, and in particular to a thermal synthesis device for non-woven bag production. Background Art

[0002] Non-woven fabric, also known as non-woven fabric, is composed of directional or random fibers. It is called cloth because it has the appearance and certain properties of cloth. Non-woven fabric has the characteristics of moisture-proof, breathable, flexible, lightweight, non-combustible, easy to decompose, non-toxic and non-irritating, rich colors, low price, and recyclable. Non-woven bag is an environmentally friendly bag, which is made of non-woven fabric as the main material. Traditional non-woven bags are usually processed using non-woven bag processing equipment.

[0003] The non-woven fabric is rolled up after being folded, and then unrolled. When unrolled, it is a rectangular strip. Then it is cut and folded on the sides, and the bottom is heat-sealed and heat-formed on the heating plate of the heat-forming device. Finally, it is cut to form a single non-woven bag.

[0004] However, when the heating plate is heat-sealing the non-woven fabric, the non-woven fabric is in a folded state, with a double-layer non-woven fabric in the middle and four-layer non-woven fabric on both sides. As a result, the thickness of the non-woven fabric contacted by the heat pressing plate during heat-sealing is different, but the temperature and pressure applied by the heat pressing plate during heat sealing are consistent, resulting in a decrease in the flatness and strength of the heat-sealed part of the non-woven bag after molding, affecting the use of subsequent products. Summary of the invention

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A heat-sealing device for producing non-woven bags, comprising a heat-sealing frame, a mounting box arranged in the heat-sealing frame, a plurality of heat-pressing components arranged in the mounting box, the heat-pressing components comprising heat-pressing plates, a plurality of connecting rods arranged between the heat-pressing plates, for connecting the plurality of heat-pressing components, thereby forming a plurality of different heat-sealing areas;

[0007] A pressure control component is provided between the hot pressing component and the installation box, for adjusting the pressure of the hot pressing component;

[0008] The hot pressing plate is provided with an air inlet pipe, and a temperature control component is provided between the hot pressing plate and the air inlet pipe for controlling the temperature of the hot pressing plate.

[0009] Furthermore, the hot pressing plate is slidably connected to the mounting box, an ear seat is fixedly mounted on the hot pressing plate, and a limit rod and an air inlet pipe are respectively fixedly mounted on the top end of the hot pressing plate.

[0010] Furthermore, the pressure control component includes a guide rail, which is fixedly installed on the outside of the installation box, a sliding seat is slidably installed on the guide rail, a screw is threadedly installed through the sliding seat, an adjusting ring is rotatably installed on the bottom end of the screw, an L-shaped groove is opened in the adjusting ring, a movable rod is clamped in the L-shaped groove, a connecting seat is fixedly installed on the bottom end of the movable rod, a spring 1 is fixedly connected to the top end of the connecting seat, and the other end of the spring 1 is rotatably connected to the adjusting ring.

[0011] Furthermore, the temperature control component includes a hose, which is fixedly installed between two adjacent hot pressing plates, a sealing tube is fixedly connected to the bottom end of one side of the hose, a sealing ball 2 is installed inside the sealing tube, a limit seat is fixedly installed in the intake pipe, a spring 2 is fixedly installed on the top of the limit seat, a sealing ball 2 is fixedly connected to the top of the spring 2, and a connecting rod is fixedly connected between the sealing ball 2 and the sealing ball 1.

[0012] Furthermore, there are at least three connecting rods, and the connecting rods are slidably connected to the ear seats and the connecting seats.

[0013] Furthermore, the limiting rod and the air inlet pipe penetrate the top end of the installation box and are slidably connected to the installation box, and a limiting ring is installed on the surface of the limiting rod and the air inlet pipe near the top end.

[0014] Furthermore, the screw rod is slidably connected to the movable rod, and the L-shaped groove is communicated with the screw rod.

[0015] Furthermore, a connector is detachably mounted on the top end of the air intake pipe, and a push rod is fixedly mounted inside the connector.

[0016] Furthermore, the first sealing ball is matched with the top opening of the air inlet pipe, and the second sealing ball is matched with the bottom opening of the sealing pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a thermal synthesis device for producing non-woven bags of the present invention;

[0018] Figure 2 This is a schematic diagram of the internal structure of a thermal synthesis device for producing non-woven bags according to the present invention;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of an installation box of a thermal synthesis device for producing non-woven bags of the present invention;

[0020] Figure 4 It is an enlarged schematic diagram of a single structure of a hot pressing component of a heat synthesis type device for producing non-woven bags of the present invention;

[0021] Figure 5 The invention is a thermal synthesis device for producing non-woven bags Figure 1 Enlarged schematic diagram of area A in the middle;

[0022] Figure 6 It is a schematic diagram of the disassembled structure of a pressure control component of a thermal synthesis device for producing non-woven bags of the present invention;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of a pressure control component of a thermal synthesis device for producing non-woven bags according to the present invention;

[0024] Figure 8 The present invention is a schematic enlarged cross-sectional view of an adjustment ring of a thermal synthesis device for producing non-woven bags.

[0025] Fig. 9 The present invention is a partial structural schematic diagram of a temperature control component of a thermal synthesis device for producing non-woven bags.

[0026] In the figure: 1. heat sealing frame; 2. bottom plate; 3. top plate; 4. installation box; 5. hot pressing assembly; 51. hot pressing plate; 52. ear seat; 53. limit rod; 54. air inlet pipe; 55. limit ring; 6. pressure control assembly; 61. guide rail; 62. sliding seat; 63. screw rod; 64. adjustment ring; 65. L-shaped groove; 66. movable rod; 67. spring 1; 68. connecting seat; 7. temperature control assembly; 71. hose; 72. connector; 73. ejector rod; 74. limit seat; 75. spring 2; 76. sealing ball 1; 77. linkage rod; 78. sealing ball 2; 79. sealing tube; 8. connecting rod. DETAILED DESCRIPTION

[0027] like Figure 1 - Fig. 9As shown, a heat-sealing device for non-woven bag production includes a heat-sealing frame 1, and a bottom plate 2 is fixedly installed at the bottom of the heat-sealing frame 1 for supporting the non-woven fabric during heat-sealing. A top plate 3 is installed on the top of the heat-sealing frame 1, and a mounting box 4 is fixedly installed on the bottom end of the top plate 3. The top plate 3 and the mounting box 4 can be driven by a cylinder to reciprocate up and down to perform heat-sealing treatment on the non-woven fabric. A hot pressing plate 51 is slidably installed inside the mounting box 4, and a limiting rod 53 and an air inlet pipe 54 are fixedly installed on the top of the hot pressing plate 51. The limiting rod 53 and the air inlet pipe 54 penetrate the top of the mounting box 4 and are slidably connected to the mounting box 4. A limiting ring 55 is detachably installed on the surface of the limiting rod 53 and the air inlet pipe 54 near the top position, for example, it can be installed by threading or snapping, so that the limiting ring 55 can be easily disassembled and assembled on the limiting rod 53 and the air inlet pipe 54. After the limiting ring 55 is installed, the limiting rod 53 and the air inlet pipe 54 will not be separated from the installation box 4. After removal, the hot pressing plate 51 can be quickly taken out, which effectively improves the convenience of the later maintenance of the hot pressing plate 51.

[0028] like Figure 1 and Figure 5 As shown, ear seats 52 are provided on both sides of the hot pressing plate 51 for connecting each hot pressing plate 51. Guide rails 61 are provided on both sides of the installation box 4, and a plurality of sliding seats 62 are slidably installed on the guide rails 61. The cross section of the guide rails 61 is a "T"-shaped structure, so that the sliding seats 62 are more stable when they move along the guide rails 61. There are preferably six sliding seats 62, and each sliding seat 62 is correspondingly provided with a connecting seat 68, which can be clamped between two ear seats 52. Circular holes are provided in the middle of the connecting seat 68 and the ear seat 52, and when the connecting seat 68 abuts against the hot pressing plate 51, the circular holes of the connecting seat 68 and the ear seat 52 are connected. A plurality of connecting rods 8 are slidably installed through the circular holes of the ear seat 52 and the connecting seat 68. Preferably, there are three connecting rods 8, and the lengths of the connecting rods 8 are different, so that the sliding seat 62 can be matched according to different needs, and any number of ear seats 52 and two connecting seats 68 can be connected, and a plurality of hot pressing plates 51 can be formed into three wholes to perform hot melt molding on the non-woven fabric part. In addition, the two connecting seats 68 support the whole at the same time, and the support is more stable. Since the thickness of the middle and two sides of the folded non-woven fabric is different, the length of the connecting rod 8 is selected according to the width of the middle and two sides of the non-woven fabric, so as to adaptively adjust the number of hot pressing plates 51 connected together, so that the hot pressing plates 51 form three wholes, and the middle and two sides of the non-woven fabric are respectively hot-melt molded.

[0029] It should be noted that the plurality of connecting rods 8 is an integer multiple of three, and the sliding seat 62 is twice the number of the connecting rods 8, so that the hot pressing plate 51 can be formed into a whole that is a multiple of three, so that multiple non-woven bags can be hot-pressed at the same time, thereby improving the processing efficiency.

[0030] The upper and lower ends of the sliding seat 62 are threadedly installed with a screw rod 63, and the bottom end of the screw rod 63 is rotatably installed with an adjustment ring 64. An L-shaped groove 65 is provided in the adjustment ring 64, and a movable rod 66 is clamped in the L-shaped groove 65. When the screw rod 63 rotates, the movable rod 66 will be clamped in the L-shaped groove 65, so that the movable rod 66 moves with the screw rod 63. After the position adjustment is completed, the adjustment ring 64 is rotated to release the clamping of the movable rod 66 and the L-shaped groove 65, and the movable rod 66 can be separated from the adjustment ring 64. At the same time, the interior of the screw rod 63 is an open structure, and the movable rod 66 can move along the inside of the screw rod 63 during the hot forming, thereby avoiding motion interference during the hot forming. The movable rod 66 is fixedly connected to the connecting seat 68. By rotating the screw rod 63, the movable rod 66 can be driven to move to adjust the height of the connecting seat 68, thereby realizing the adjustment of the height of the hot pressing plate 51.

[0031] A spring 67 is installed between the adjustment ring 64 and the connection seat 68, which is used to provide pressure for the heat press plate 51 to heat press the non-woven fabric. After the heat press plate 51 contacts the non-woven fabric, it will squeeze the spring 67. The closer the distance between the heat press plate 51 and the bottom plate 2 is, the greater the pressure provided by the spring 67. Since the connecting rod 8 connects multiple heat press plates 51 and two connection seats 68, the height of the heat press plate 51 can be adjusted by adjusting the position of the connection seat 68. In this way, the pressure of the heat press plate 51 when heat-sealing the non-woven fabric can be adjusted, and the pressure on both sides and the middle can be inconsistent, so as to adapt to the folded non-woven fabric.

[0032] like Fig. 9As shown, a connector 72 is installed at the top of the air inlet pipe 54 in a detachable manner, such as a thread, a buckle, etc. (not shown in the figure). Two connectors 72 form a group, and a group of connectors 72 is installed in a heat seal. The other end of the connector 72 is connected to a pipe, and the pipe is connected to a heating mechanism (not shown in the figure), so that hot air enters the air inlet pipe 54 through the pipe and the connector 72, thereby heating the hot press plate 51. A push rod 73 is provided in the connector 72, and a sealing ball 76 is installed in the air inlet pipe 54. When the connector 72 is installed with the air inlet pipe 54, the push rod 73 will squeeze the sealing ball 76, so that the connector 72 and the air inlet pipe 54 are connected. Adjacent hot press plates 51 are connected by a hose 71 for the communication of hot air. One end of the hose 71 is fixedly connected to the sealing tube 79, which is located inside the hot press plate 51. A sealing ball 2 78 is installed inside the sealing tube 79, and the sealing ball 2 78 is connected to the sealing ball 1 76 through a linkage rod 77, so that when the sealing ball 1 76 moves down, it will drive the sealing ball 2 78 to move down, thereby blocking the sealing tube 79, so that the hose 71 is not connected. The hose 71 is installed on the air inlet pipe 54 on different hot press plates 51 through the connector 72. After installation, the corresponding hose 71 is sealed, so that the hot press plate 51 between the two connectors 72 is no longer connected to other hot press plates 51. When heating, hot air can enter the hot press plate 51 through one connector 72, and then re-enter the heating mechanism through another connector 72 for hot air circulation, so that the hot press plate 51 between the two connectors 72 can be circulated and heated, and the heating is more uniform and the temperature is more convenient to control. The heating temperature of each heat-sealing part can be individually adjusted to adapt to the folded non-woven fabric, and the heating temperature in the middle and on both sides of the non-woven fabric can be adjusted to make the non-woven fabric more stable during thermal forming.

[0033] The bottom end of the surface of the sealing ball 1 76 is tightly connected to one end of the spring 2 75, and the other end of the spring 2 75 is connected to the limit seat 74. When the connector 72 is not installed, under the elastic force of the spring 2 75, the sealing ball 1 76 is tightly abutted against the top opening of the air inlet pipe 54, and is used to seal the top of the air inlet pipe 54, so that the air inlet pipe 54 is not connected to the outside world and will not leak when the hot pressing plate 51 is heated.

[0034] It should be noted that the present invention is a heat-sealing device for non-woven bag production, and its working principle is: the sliding seat 62 is moved along the guide rail 61, and the positions of multiple sliding seats 62 are symmetrically arranged along the center line of the installation box 4. By rotating the screw 63, the screw 63 drives the connecting seat 68 to move, so that the connecting seat 68 is clamped between the two ear seats 52. The length of the connecting rod 8 is selected by the width on both sides and the middle, and then the connecting rod 8 is slidably installed between the ear seat 52 and the connecting seat 68, and the two connecting seats 68 and multiple hot pressing plates 51 form a heat-sealing part. The height of the heat-sealing part is then adjusted by rotating the screw 63. After the height adjustment is completed, the clamping of the L-shaped groove 65 and the movable rod 66 is released by rotating the adjustment ring 64, so that the movable rod 66 can be displaced along the screw 63, which can avoid the phenomenon that the hot pressing plate 51 is stuck and cannot move when the hot pressing plate 51 performs heat-sealing on the non-woven fabric.

[0035] The two connectors 72 are connected to the top of the air inlet pipe 54 at both ends of the heat seal, respectively. After the connection, the top rod 73 will squeeze the sealing ball 1 76, so that the connector 72 and the air inlet pipe 54 can be connected. The downward movement of the sealing ball 1 76 will drive the sealing ball 2 78 to move downward through the linkage rod 77, so that the sealing ball 2 78 seals the sealing tube 79, thereby sealing one end of the hose 71. And the hot air enters the air inlet pipe 54 through a connector 72 to heat the hot pressing plate 51, and then enters the other hot pressing plate 51 through the unsealed end of the hose 71 to heat it, and finally is discharged through the other connector 72, so that the two connectors 72, the heat seal, and the heating mechanism form a hot air circulation, so that the hot pressing plate 51 in the heat seal is evenly heated. Since the three heat seals are connected to different heating components, the three heat seals can be heated to different temperatures to adapt to the phenomenon of inconsistent thickness at different positions after the non-woven fabric is folded. At the same time, the heating range of the heat-sealing parts on both sides can be adjusted according to the width of the non-woven fabric. It is not necessary to heat all the hot pressing plates 51. The number of heated hot pressing plates 51 can be reduced to reduce the energy consumption during heating and the time required for preheating.

[0036] The heat-sealed parts on both sides can use the same heating mechanism to reduce energy consumption and ensure the consistency of heating temperature on both sides, and the heat-sealed parts on both sides and the middle are heated by different heating mechanisms, which can avoid the conventional method of heating using heating elements, which causes the heat dissipation and temperature rise in the middle to be slower than on the two sides, thereby improving the stability of the heat-sealed molding.

[0037] After unwinding, the folded non-woven fabric passes through the flattening roller in the heat-sealing frame 1 and then passes horizontally through the bottom plate 2, and then the top plate 3 is driven by the cylinder to reciprocate up and down, thereby driving the installation box 4 to move down, so that the hot pressing plate 51 contacts the non-woven fabric, thereby performing a heat-forming operation on the non-woven fabric, and cutting after forming to obtain a non-woven bag. When the hot pressing plate 51 is heat-forming the non-woven fabric, the pressure and temperature on both sides are higher than those in the middle, which is suitable for the situation that the non-woven fabrics on both sides after folding are thicker than the non-woven fabrics in the middle, making the heat-formed part more stable.

[0038] The above embodiments of the present invention can achieve the following beneficial effects:

[0039] 1. The present invention sets a hot pressing component, a pressure control component, a temperature control component and a connecting rod, so that the heat-forming area in the middle and on both sides can be adjusted according to the non-woven fabrics of different widths and different folding conditions of the non-woven fabrics, thereby effectively improving the applicability of the device, and the heat-forming pressure and temperature in the middle and on both sides can be adjusted respectively, effectively improving the stability of the non-woven bag after heat-forming.

[0040] 2. The present invention provides a hot pressing assembly so that the part for heat-forming the non-woven fabric is divided into a plurality of separate hot pressing plates, and the hot pressing plates can be quickly disassembled and assembled, which effectively improves the convenience of the subsequent operation and maintenance of the device.

[0041] 3. The present invention can combine multiple hot pressing plates into multiple heat-molded parts by setting a hot pressing component in conjunction with a pressure control component and a connecting rod, and the number and pressure of the hot pressing plates in each heat-molded part can be adjusted to adapt to non-woven fabrics of different sizes and folding degrees, and can adapt to the situation of synchronously processing multiple non-woven bags.

[0042] 4. The present invention sets a hot pressing component in conjunction with a temperature control component, so that different numbers of hot pressing plates can be cyclically heated according to the width of the non-woven fabric, so that the heating area can be adjusted, and the temperatures of the hot pressing plates in the middle and on both sides can be different, so that the temperature of each part of the non-woven fabric during thermal molding can be adjusted, effectively improving the stability during thermal molding.

[0043] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heat-sealing device for producing non-woven bags, comprising a heat-sealing frame (1), wherein a mounting box (4) is arranged inside the heat-sealing frame (1), characterized in that: A plurality of hot pressing assemblies (5) are arranged in the installation box (4), and the hot pressing assemblies (5) include hot pressing plates (51). A plurality of connecting rods (8) are arranged between the hot pressing plates (51) for connecting the plurality of hot pressing assemblies (5) to form a plurality of different heat-forming areas; A pressure control component (6) is provided between the hot pressing component (5) and the installation box (4) for adjusting the pressure of the hot pressing component (5); An air inlet pipe (54) is provided on the hot pressing plate (51), and a temperature control component (7) is provided between the hot pressing plate (51) and the air inlet pipe (54) for controlling the temperature of the hot pressing plate (51).

2. A thermal synthesis device for non-woven bag production according to claim 1, characterized in that: The hot pressing plate (51) is slidably connected to the mounting box (4), an ear seat (52) is fixedly mounted on the hot pressing plate (51), and a limit rod (53) and an air intake pipe (54) are respectively fixedly mounted on the top end of the hot pressing plate (51).

3. A thermal synthesis device for non-woven bag production according to claim 1, characterized in that: The pressure control assembly (6) comprises a guide rail (61), wherein the guide rail (61) is fixedly mounted on the outer side of the mounting box (4), a sliding seat (62) is slidably mounted on the guide rail (61), a screw rod (63) is threadedly mounted through the sliding seat (62), an adjusting ring (64) is rotatably mounted on the bottom end of the screw rod (63), an L-shaped groove (65) is provided in the adjusting ring (64), a movable rod (66) is clamped in the L-shaped groove (65), a connecting seat (68) is fixedly mounted on the bottom end of the movable rod (66), a spring (67) is fixedly connected to the top end of the connecting seat (68), and the other end of the spring (67) is rotatably connected to the adjusting ring (64).

4. A thermal synthesis device for non-woven bag production according to claim 1, characterized in that: The temperature control component (7) comprises a hose (71), the hose (71) is fixedly installed between two adjacent hot pressing plates (51), a sealing tube (79) is fixedly connected to the bottom end of one side of the hose (71), a sealing ball (78) is installed inside the sealing tube (79), a limiting seat (74) is fixedly installed inside the air intake pipe (54), a spring (75) is fixedly installed at the top end of the limiting seat (74), a sealing ball (78) is fixedly connected to the top end of the spring (75), and a connecting rod (77) is fixedly connected between the sealing ball (78) and the sealing ball (76).

5. A thermal synthesis device for non-woven bag production according to claim 2, characterized in that: There are at least three connecting rods (8), and the connecting rods (8) are slidably connected to the ear seats (52) and the connecting seats (68).

6. A thermal synthesis device for non-woven bag production according to claim 2, characterized in that: The limiting rod (53) and the air inlet pipe (54) penetrate the top end of the installation box (4) and are slidably connected to the installation box (4); a limiting ring (55) is installed on the surface of the limiting rod (53) and the air inlet pipe (54) near the top end.

7. A thermal synthesis device for non-woven bag production according to claim 3, characterized in that: The screw rod (63) is slidably connected to the movable rod (66), and the L-shaped groove (65) is communicated with the screw rod (63).

8. A thermal synthesis device for producing non-woven bags according to claim 4, characterized in that: A connecting head (72) is detachably mounted on the top end of the air inlet pipe (54), and a push rod (73) is fixedly mounted inside the connecting head (72).

9. A thermal synthesis device for producing non-woven bags according to claim 4, characterized in that: The sealing ball 1 (76) is matched with the top opening of the air inlet pipe (54), and the sealing ball 2 (78) is matched with the bottom opening of the sealing pipe (79).

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