Hot press forming device for non-woven fabric bag production

By designing an adjustable hot press head and limiting device for the production of nonwoven bags, a hot pressing forming device for nonwoven bags was developed. This solved the problem that existing devices could only hot press nonwoven bags of one specification, and enabled stable hot pressing forming of nonwoven bags of different specifications, thus improving applicability and quality.

CN224276486UActive Publication Date: 2026-05-26TIANJIN DABAO TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN DABAO TECHNOLOGY CO LTD
Filing Date
2025-06-17
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing hot-pressing equipment for nonwoven bag production can only hot-press nonwoven bags of one specification, cannot be adjusted, and has low applicability.

Method used

A thermoforming device for nonwoven bag production was designed, including a base, a thermoforming component, a conveying component, a limiting component, and a finishing component. By setting an adjustable thermoforming head and a limiting device, it can adapt to nonwoven raw materials of different widths, ensuring the stability and quality of the thermoforming process.

Benefits of technology

It enables the hot pressing of nonwoven bags of different specifications, improves the applicability of the device, prevents raw material displacement and wrinkles, and ensures the stability and quality of the hot pressing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of non-woven fabric bag production, in particular to a non-woven fabric bag production hot press forming device which comprises a base, two groups of first vertical plates, a cross beam, a mounting sleeve, an internal thread block, a rubber head jackscrew, a spring and a hot press head. The two sets of first vertical plates are located on the two sides of the supporting table correspondingly, the cross beam is fixedly installed between the two sets of first vertical plates, the installation sleeve is slidably connected with the cross beam, the internal thread block is fixedly installed above the installation sleeve, the rubber head jackscrew is arranged in the internal thread block and is in threaded connection with the internal thread block, and the spring is fixedly installed below the installation sleeve. The hot pressing head is fixedly mounted below the spring; the hot-pressing head is mounted through the mounting sleeve, the hot-pressing head can be driven to slide along the cross beam for adjustment to adapt to raw materials with different widths, and the mounting sleeve can be fixed through the rubber head jackscrew after the mounting sleeve is adjusted to a proper position.
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Description

Technical Field

[0001] This utility model relates to the field of nonwoven bag production technology, and in particular to a hot pressing forming device for nonwoven bag production. Background Technology

[0002] Non-woven bags, also known as non-woven fabric bags, are made of materials such as polypropylene and polyester fibers. They are usually formed through processes such as heat bonding. They have the characteristics of being moisture-proof, breathable, flexible, and lightweight, and can be recycled.

[0003] The production process of non-woven bags requires the use of a hot pressing device for hot pressing. Existing hot pressing devices can usually only hot press non-woven bags of one specification, cannot be adjusted, and have low applicability.

[0004] Therefore, in the production process of nonwoven bags, a hot pressing device is required for hot pressing. Existing hot pressing devices can usually only hot press nonwoven bags of one specification, cannot be adjusted, and have low applicability. A hot pressing device for nonwoven bag production can be designed, which can adjust the position of the hot pressing device according to the width of the nonwoven raw material, so that nonwoven bags of different specifications can be hot pressed and produced, with high applicability. Utility Model Content

[0005] To overcome the problem that existing hot pressing devices can only be used to hot press nonwoven bags of one specification, cannot be adjusted, and have low applicability, the production process of nonwoven bags requires the use of hot pressing devices for hot pressing.

[0006] The technical solution of this utility model is as follows: a hot-pressing forming device for producing non-woven bags, comprising a base, a hot-pressing component, a conveying component, a limiting component, and a finishing component. A support platform is fixedly installed above the base. The hot-pressing component includes a first vertical plate, a crossbeam, a mounting sleeve, an internal threaded block, a rubber head screw, a spring, and a hot-pressing head. Two sets of first vertical plates are provided, and the first vertical plates are fixedly installed above the base. The two sets of first vertical plates are located on both sides of the support platform. The crossbeam is fixedly installed between the two sets of first vertical plates. The mounting sleeve is located on the periphery of the crossbeam and is slidably connected to the crossbeam. The internal threaded block is fixedly installed above the mounting sleeve. The rubber head screw is located inside the internal threaded block and is threadedly connected to the internal threaded block. Two sets of springs are provided, and the springs are fixedly installed below the mounting sleeve. The hot-pressing head is fixedly installed below the springs. The conveying component is located above the base and on one side of the support platform. The limiting component is located above the base, and the finishing component is located on one side of the limiting component.

[0007] Preferably, the nonwoven fabric raw material is conveyed by a conveying component, and the nonwoven fabric raw material is limited on both sides by a limiting component to prevent it from shifting during conveying. The conveying nonwoven fabric raw material is leveled by a sorting component to prevent wrinkles from forming on the surface of the raw material, which would affect the subsequent hot pressing work. The conveying nonwoven fabric raw material is supported by a support platform, which works in conjunction with the hot pressing component and the sorting component. A first vertical plate is used to install a crossbeam, and a mounting sleeve is used to install a hot pressing head, which can slide along the crossbeam to adjust and adapt to raw materials of different widths. A spring is used to provide pressure to the hot pressing head, pressing it tightly against the surface of the nonwoven fabric raw material. The hot pressing head heat-presses the surface of the nonwoven fabric raw material to form the bottom seal of the nonwoven bag. An internal threaded block is used to install a rubber head top screw, which can fix the mounting sleeve after it is adjusted to a suitable position, preventing the mounting sleeve from sliding accidentally.

[0008] Preferably, the hot pressing assembly includes a gantry frame, a telescopic rod, a mounting plate, and a hot pressing strip. The gantry frame is fixedly installed above the base, the telescopic rod is fixedly installed above the gantry frame, the mounting plate is fixedly installed at the output end of the telescopic rod, the mounting plate is slidably connected to the gantry frame, and the hot pressing strip is fixedly installed below the mounting plate. Two sets of hot pressing strips are provided.

[0009] Preferably, the conveying assembly includes a second vertical plate and a conveying roller. The second vertical plate is fixedly installed above the base. There are two sets of the second vertical plate, which are located on both sides of the support platform. The conveying roller is located between the two sets of the second vertical plate and is rotatably connected to the second vertical plate. There are two sets of the conveying roller, which are arranged vertically.

[0010] Preferably, the conveying assembly includes gears and a motor. One end of each of the two sets of conveying rollers is fixedly mounted with a set of gears. The gears are located on one side of a set of second vertical plates, and the two sets of gears mesh. The motor is fixedly mounted on one side of a set of second vertical plates, and the output end of the motor is fixedly connected to a set of gears.

[0011] Preferably, the limiting component includes a slide groove, an internally threaded slider, and a baffle. The support platform has a slide groove inside, the internally threaded slider is disposed inside the slide groove, the internally threaded slider is slidably connected to the slide groove, two sets of internally threaded sliders are provided, and the baffle is fixedly installed above the internally threaded slider.

[0012] Preferably, the limiting component includes a third vertical plate, a bidirectional screw, and a rotating handle. Two sets of third vertical plates are provided, and the two sets of third vertical plates are fixedly installed on both sides of the base. The bidirectional screw is located between the two sets of third vertical plates and is rotatably connected to the third vertical plate. The bidirectional screw passes through the two sets of internal thread sliders and is threadedly connected to the internal thread sliders. The rotating handle is fixedly installed at one end of the bidirectional screw.

[0013] Preferably, the finishing component includes a mounting bracket and a pressure roller. The mounting bracket is fixedly installed above the base. There are two sets of mounting brackets, which are located on both sides of the support platform. The pressure roller is located between the two sets of mounting brackets and is rotatably connected to the mounting bracket. There are multiple sets of pressure rollers, which are arranged horizontally and linearly.

[0014] The beneficial effects of this utility model are:

[0015] The hot press head is installed via an mounting sleeve, which can slide along the crossbeam for adjustment to accommodate materials of different widths. The rubber head screw is installed via an internal threaded block. After the mounting sleeve is adjusted to the appropriate position according to the width of the nonwoven fabric material, the rubber head screw rotates within the internal threaded block, causing one end of the rubber head screw to tightly abut against the crossbeam. Friction secures the mounting sleeve, preventing accidental slippage. When the raw material, leveled by the finishing components, passes under the hot press head, a spring provides pressure, pressing the surface of the nonwoven fabric material firmly. The hot press head heat-presses the surface of the nonwoven fabric material to form the bottom seal of the nonwoven bag. Attached Figure Description

[0016] Figure 1 The diagram shown is a first three-dimensional structural schematic of the thermoforming device for producing nonwoven bags according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural diagram of the gantry frame of the nonwoven bag production thermoforming device of this utility model.

[0018] Figure 3 The diagram shown is a second three-dimensional structural schematic of the thermoforming device for producing nonwoven bags according to this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the mounting sleeve of the thermoforming device for nonwoven bag production according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Base; 101. Support platform; 201. First vertical plate; 202. Horizontal beam;

[0021] 203. Mounting sleeve; 204. Internal threaded block; 205. Rubber-tipped set screw; 206. Spring; 207. Heat press head;

[0022] 208. Gantry frame; 209. Telescopic pole; 210. Mounting plate; 211. Hot press strip; 301. Second vertical plate;

[0023] 302. Conveyor roller; 303. Gear; 304. Motor; 401. Slide groove; 402. Internal threaded slider; 403. Baffle; 404. Third vertical plate; 405. Bidirectional screw; 406. Rotary handle; 501. Mounting bracket; 502. Pressure roller. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please see Figure 3 and Figure 4This utility model provides an embodiment: a thermoforming device for producing nonwoven bags, including a base 1, a thermoforming assembly, a conveying assembly, a limiting assembly, and a finishing assembly. A support platform 101 is fixedly installed above the base 1. The thermoforming assembly includes a first vertical plate 201, a crossbeam 202, a mounting sleeve 203, an internal thread block 204, a rubber head screw 205, a spring 206, and a thermoforming head 207. Two sets of first vertical plates 201 are provided, and the first vertical plates 201 are fixedly installed above the base 1. The two sets of first vertical plates 201 are respectively located on both sides of the support platform 101. The crossbeam 202 is fixedly installed on both sides. Between the first vertical plates 201, the mounting sleeve 203 is set on the periphery of the crossbeam 202, and the mounting sleeve 203 is slidably connected to the crossbeam 202. The internal threaded block 204 is fixedly installed above the mounting sleeve 203. The rubber head set screw 205 is set inside the internal threaded block 204, and the rubber head set screw 205 is threadedly connected to the internal threaded block 204. Two sets of springs 206 are provided, and the springs 206 are fixedly installed below the mounting sleeve 203. The hot press head 207 is fixedly installed below the springs 206. The conveying assembly is set above the base 1, and the conveying assembly is located on one side of the support platform 101. The limiting assembly is set on... Above the base 1, a sorting component is positioned on one side of the limiting component. A conveying component transports the non-woven fabric raw material, while the limiting component restricts the material on both sides to prevent deviation during transport. The sorting component flattens the transported material, preventing wrinkles that could affect subsequent hot pressing. A support platform 101 supports the transported non-woven fabric raw material, working in conjunction with the hot pressing and sorting components. A first vertical plate 201 mounts the crossbeam 202, and an mounting sleeve 20... 3. The hot press head 207 is installed and can be adjusted by sliding along the crossbeam 202 to adapt to raw materials of different widths. The spring 206 can provide pressure to the hot press head 207 to press the surface of the nonwoven fabric raw material. The hot press head 207 can heat press the surface of the nonwoven fabric raw material to form the bottom seal of the nonwoven bag. The rubber head top screw 205 is installed by the internal thread block 204. The rubber head top screw 205 can fix the mounting sleeve 203 after it is adjusted to a suitable position, preventing the mounting sleeve 203 from sliding accidentally.

[0026] Please see Figure 1 and Figure 2In this embodiment, the hot pressing assembly includes a gantry frame 208, a telescopic rod 209, a mounting plate 210, and a hot pressing strip 211. The gantry frame 208 is fixedly installed above the base 1, the telescopic rod 209 is fixedly installed above the gantry frame 208, the mounting plate 210 is fixedly installed at the output end of the telescopic rod 209, the mounting plate 210 is slidably connected to the gantry frame 208, and the hot pressing strip 211 is fixedly installed below the mounting plate 210. Two sets of hot pressing strips 211 are provided. The telescopic rod 209 and mounting plate 210 are installed using a gantry frame 208. The heat-pressing strip 211 is installed using the mounting plate 210. The telescopic rod 209 can push the mounting plate 210 down, thereby heat-pressing the non-woven bag raw material with the bottom seal completed by the heat-pressing strip 211 to form the side seals on both sides of the non-woven bag. The conveying assembly includes a second vertical plate 301 and a conveying roller 302. The second vertical plate 301 is fixedly installed above the base 1. Two sets of second vertical plates 301 are provided, located on both sides of the support platform 101. Conveying rollers 302 are positioned between the two sets of second vertical plates 301 and are rotatably connected to them. The conveying assembly includes gears 303 and a motor 304. A set of gears 303 is fixedly installed at one end of each set of conveying rollers 302, located on one side of one set of second vertical plates 301. The two sets of gears 303 mesh. The motor 304 is fixedly installed on one side of one set of second vertical plates 301, and its output end is fixedly connected to one set of gears 303. By setting the motor 304, one set of gears 303 can be driven to rotate. The meshing of the two sets of gears 303 synchronously transmits the rotation to the two sets of conveying rollers 302, causing them to rotate synchronously in opposite directions, thereby conveying the nonwoven fabric passing between the two sets of conveying rollers 302.

[0027] Please see Figure 3In this embodiment, the limiting component includes a slide groove 401, an internally threaded slider 402, and a baffle 403. The support platform 101 has a slide groove 401 inside, and the internally threaded slider 402 is disposed inside the slide groove 401, slidably connected to the slide groove 401. Two sets of internally threaded sliders 402 are provided. The baffle 403 is fixedly installed above the internally threaded slider 402. The limiting component includes a third vertical plate 404, a bidirectional screw 405, and a handle 406. The third vertical plate 404... Two sets of third vertical plates 404 are provided, each fixedly installed on both sides of the base 1. A bidirectional screw 405 is positioned between the two sets of third vertical plates 404, rotatably connected to the third vertical plates 404. The bidirectional screw 405 passes through two sets of internally threaded sliders 402, and is threadedly connected to the internally threaded sliders 402. A handle 406 is fixedly installed at one end of the bidirectional screw 405. The baffle 403 is installed by setting the internally threaded sliders 402. 3. The conveyed nonwoven fabric material can be limited on both sides to prevent it from shifting during conveying. A rotating handle 406 can rotate a bidirectional screw 405, causing two sets of internally threaded sliders 402 to slide in opposite directions along the groove 401. Adjusting the distance between the two sets of baffles 403 allows for limiting the width of nonwoven fabric materials. The finishing component includes a mounting bracket 501 and a pressure roller 502. The mounting bracket 501 is fixedly installed above the base 1. Two sets of mounting brackets 501 are provided, with the two sets of mounting brackets 501 located on both sides of the support platform 101. The pressure roller 502 is located between the two sets of mounting brackets 501 and is rotatably connected to the mounting brackets 501. There are multiple sets of pressure rollers 502, which are arranged horizontally and linearly. The pressure roller 502 is installed by setting the mounting brackets 501. The pressure roller 502 can press and flatten the nonwoven fabric material, preventing wrinkles from appearing on the surface of the nonwoven fabric material and affecting the subsequent hot pressing work.

[0028] During operation, two layers of nonwoven fabric are stacked together and passed between two sets of conveying rollers 302. The motor 304 drives a set of gears 303 to rotate. The meshing of the two sets of gears 303 can synchronously transmit the rotation to the two sets of conveying rollers 302, so that the two sets of conveying rollers 302 rotate in opposite directions synchronously, thereby conveying the nonwoven fabric passing between the two sets of conveying rollers 302.

[0029] The hot press head 207 is installed using the mounting sleeve 203, and the hot press head 207 can be slid along the crossbeam 202 for adjustment to accommodate raw materials of different widths. The rubber head set screw 205 is installed using the internal thread block 204. The rubber head set screw 205 can be used to fix the mounting sleeve 203 after it is adjusted to a suitable position, preventing the mounting sleeve 203 from sliding accidentally.

[0030] The internal threaded slider 402 is used to install the baffle 403. The double screw 405 can be rotated by the handle 406, thereby driving the two sets of internal threaded sliders 402 to slide in opposite directions along the slide groove 401, adjusting the distance between the two sets of baffles 403, so that the two sets of baffles 403 contact the two sides of the non-woven fabric raw material, limiting the conveyed non-woven fabric raw material, and preventing the non-woven fabric raw material from deviating during the conveying process, which would lead to the hot-pressed finished product being unqualified.

[0031] The conveyed nonwoven fabric raw material will first pass under the pressure roller 502. The pressure roller 502 can press and flatten the nonwoven fabric raw material to prevent wrinkles from appearing on the surface of the nonwoven fabric raw material.

[0032] After being leveled, the raw material passes under the hot press head 207. The spring 206 provides pressure to the hot press head 207, pressing it tightly against the surface of the nonwoven fabric raw material. The hot press head 207 heat-presses the surface of the nonwoven fabric raw material to form the bottom seal of the nonwoven bag. The bottom-sealed nonwoven bag continues to be conveyed and passes under the mounting plate 210. The telescopic rod 209 pushes the mounting plate 210 down, so that the hot press strip 211 heat-presses the bottom-sealed nonwoven bag raw material to form the side seals on both sides of the nonwoven bag, completing the heat-pressing process.

[0033] Through the above steps, the hot press head 207 is installed through the mounting sleeve 203, and the hot press head 207 can be slid along the crossbeam 202 for adjustment to adapt to raw materials of different widths. The mounting sleeve 203 can be fixed after it is adjusted to a suitable position by the rubber head top screw 205. This solves the problem that the existing hot press devices usually can only perform hot press forming on one specification of non-woven bags, cannot be adjusted, and have low applicability.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A thermoforming apparatus for producing nonwoven bags, comprising a base (1), characterized in that: It also includes a hot pressing assembly, a conveying assembly, a limiting assembly, and a sorting assembly. A support platform (101) is fixedly installed above the base (1). The hot pressing assembly includes a first vertical plate (201), a crossbeam (202), a mounting sleeve (203), an internal thread block (204), a rubber head screw (205), a spring (206), and a hot pressing head (207). There are two sets of first vertical plates (201). The first vertical plates (201) are fixedly installed above the base (1). The two sets of first vertical plates (201) are located on both sides of the support platform (101). The crossbeam (202) is fixedly installed between the two sets of first vertical plates (201). The mounting sleeve (203) is set on the crossbeam (202). The outer periphery of the mounting sleeve (203) is slidably connected to the crossbeam (202). The internal thread block (204) is fixedly installed above the mounting sleeve (203). The rubber head screw (205) is set inside the internal thread block (204) and is threadedly connected to the internal thread block (204). Two sets of springs (206) are provided. The springs (206) are fixedly installed below the mounting sleeve (203). The hot press head (207) is fixedly installed below the springs (206). The conveying assembly is set above the base (1) and is located on one side of the support platform (101). The limiting assembly is set above the base (1), and the sorting assembly is set on one side of the limiting assembly.

2. The nonwoven bag production thermoforming device according to claim 1, characterized in that: The hot pressing assembly includes a gantry (208), a telescopic rod (209), a mounting plate (210), and a hot pressing strip (211). The gantry (208) is fixedly installed above the base (1), the telescopic rod (209) is fixedly installed above the gantry (208), the mounting plate (210) is fixedly installed at the output end of the telescopic rod (209), the mounting plate (210) is slidably connected to the gantry (208), and the hot pressing strip (211) is fixedly installed below the mounting plate (210). Two sets of hot pressing strips (211) are provided.

3. The nonwoven bag production thermoforming device according to claim 1, characterized in that: The conveying assembly includes a second vertical plate (301) and a conveying roller (302). The second vertical plate (301) is fixedly installed above the base (1). There are two sets of the second vertical plate (301), which are located on both sides of the support platform (101). The conveying roller (302) is located between the two sets of the second vertical plate (301) and is rotatably connected to the second vertical plate (301). There are two sets of the conveying roller (302), which are arranged vertically.

4. The nonwoven bag production thermoforming device according to claim 3, characterized in that: The conveying assembly includes gears (303) and a motor (304). One end of each of the two sets of conveying rollers (302) is fixedly mounted with a set of gears (303). The gears (303) are located on one side of a set of second vertical plates (301), and the two sets of gears (303) mesh. The motor (304) is fixedly mounted on one side of a set of second vertical plates (301), and the output end of the motor (304) is fixedly connected to a set of gears (303).

5. The thermoforming apparatus for producing nonwoven bags according to claim 1, characterized in that: The limiting component includes a slide groove (401), an internal threaded slider (402), and a baffle (403). The support platform (101) has a slide groove (401) inside. The internal threaded slider (402) is disposed inside the slide groove (401) and is slidably connected to the slide groove (401). There are two sets of internal threaded sliders (402). The baffle (403) is fixedly installed above the internal threaded slider (402).

6. The thermoforming apparatus for producing nonwoven bags according to claim 5, characterized in that: The limiting assembly includes a third vertical plate (404), a bidirectional screw (405), and a rotating handle (406). There are two sets of third vertical plates (404), which are fixedly installed on both sides of the base (1). The bidirectional screw (405) is located between the two sets of third vertical plates (404) and is rotatably connected to the third vertical plate (404). The bidirectional screw (405) passes through two sets of internal thread sliders (402) and is threadedly connected to the internal thread sliders (402). The rotating handle (406) is fixedly installed at one end of the bidirectional screw (405).

7. The thermoforming apparatus for producing nonwoven bags according to claim 1, characterized in that: The finishing component includes a mounting bracket (501) and a pressure roller (502). The mounting bracket (501) is fixedly installed above the base (1). There are two sets of mounting brackets (501), which are located on both sides of the support platform (101). The pressure roller (502) is located between the two sets of mounting brackets (501). The pressure roller (502) is rotatably connected to the mounting bracket (501). There are multiple sets of pressure rollers (502), which are arranged horizontally in a linear fashion.