Hot air nonwoven fabric hot press molding equipment

Abstract

The utility model relates to the field of non - woven fabric hot press forming technology, concretely is a kind of hot air non - woven fabric hot press forming equipment, including hot press mechanism, the die face cleaning mechanism of installation on hot press mechanism;The hot press mechanism includes bottom die bracket, the outside fixed mounting of bottom die bracket is limited end plate, bottom die is installed in bottom die bracket, vertical rod is movably installed in the limited end plate, and the top end fixed mounting of vertical rod has fixed end plate. By the opening structure of top die and bottom die is set to staggered structure, when hot airflow will limit along the direction of bottom die top groove opening delivery, until the fiber being delivered is evenly distributed in the groove on the top of bottom die, after top die is pressed and even speed drops, gradually closed mould can avoid the airflow generated during mould shrinkage to cause the floating of even fiber under the pressure of hot airflow.

Description

Technical Field

[0001] This utility model relates to the field of nonwoven fabric hot pressing molding technology, specifically a hot air nonwoven fabric hot pressing molding equipment. Background Technology

[0002] Nonwoven fabric is a type of textile made from short fibers or continuous filaments through processes such as mixing, orienting, web forming, reinforcement, and finishing. Hot pressing is a processing method for nonwoven fabric products, which can improve the manufacturing efficiency of new nonwoven fabric products.

[0003] Currently, the hot pressing equipment used for non-woven fabric products has certain defects in actual use. When non-woven fabric is hot-pressed according to requirements, the bottom mold and top mold in the hot pressing equipment will generate certain airflow fluctuations during the opening and closing operation. Under the influence of the fluctuating airflow, the evenly laid fiber layer will float. In addition, due to the influence of the cleanliness of the molding surface, the finished non-woven fabric will have wrinkles of varying degrees after being pressed.

[0004] In view of this, a hot air nonwoven fabric hot pressing molding equipment was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows: A hot air nonwoven fabric hot pressing molding equipment includes a hot pressing mechanism and a mold surface cleaning mechanism installed on the hot pressing mechanism. The hot pressing mechanism includes a bottom mold bracket, a limiting end plate is fixedly installed on the outside of the bottom mold bracket, a bottom mold is installed inside the bottom mold bracket, a vertical rod is movably installed inside the limiting end plate, a fixed end plate is fixedly installed at the top of the vertical rod, a top mold is fixedly installed on the fixed end plate, and multiple studs are fixedly installed on the outside of the bottom mold bracket. The mold surface cleaning mechanism includes four trusses installed on the multiple studs, a base is movably installed in two adjacent trusses, two rectangular sliders are installed on the base, an arc-shaped outer frame is provided inside the base, a scraper is provided at the top of the arc-shaped outer frame, and a second spring is fixedly installed at the bottom of the base, with the other end of the second spring fixedly installed on the plate end at the bottom of the arc-shaped outer frame.

[0007] In a preferred embodiment, the present invention can be further configured as follows: a transverse groove is provided inside the top mold, and two limiting plates are fixedly installed on the top of the top mold. A first spring is fixedly installed on the limiting plate, and a baffle is movably installed in the transverse groove. Two column heads are fixedly installed on the top of the baffle, and the column heads are adapted to penetrate into the limiting plate. The bottom end of the first spring is adapted to bear pressure on the baffle.

[0008] In a preferred embodiment, the present invention can be further configured such that: a limiting groove is provided on the inner side of the baffle, and the scraper is adapted to bear pressure within the limiting groove.

[0009] In a preferred embodiment, the present invention can be further configured such that: the scraper has a through hole inside, and a beam is inserted into the through hole, the beam being adapted to pass through the hole at the top of the arc-shaped outer frame.

[0010] In a preferred embodiment, the present invention can be further configured as follows: a slide rail is provided inside the truss, a pad and a shaft are inserted into the two trusses, a guide pad is installed on the shaft, and a horizontally placed third spring is fixedly installed between the pad and the base.

[0011] In a preferred embodiment, the present invention can be further configured such that: a horizontal bar is fixedly installed at the bottom end of the vertical bar, two sheaves are installed on the section of the horizontal bar, a cable is connected to the sheaves, and the other end of the cable is fixedly installed on the base.

[0012] In a preferred embodiment, the present invention can be further configured such that: a rectangular vertical hole is provided inside the base, and two column heads are fixedly installed on both sides of the base, and the two rectangular sliders are respectively movably installed on the two column heads.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. This utility model sets the opening structure of the top mold and the bottom mold to a staggered structure. When the hot airflow is limited and delivered in the direction of the opening of the groove at the top of the bottom mold, the delivered fibers are evenly distributed in the groove at the top of the bottom mold. As the top mold is pressed and descends at a uniform speed, the gradually closing mold under the pressure of the hot airflow can prevent the airflow generated during the mold shrinkage from causing the evenly distributed fibers to float.

[0014] 2. This utility model installs a mold surface cleaning mechanism on the bottom mold bracket. As the top mold is pressed and descends at a uniform speed, the horizontal bar squeezed by the vertical bar, together with two pulleys, will stretch two cables. The cables will pull the base to slide outward. Finally, the base will drive the arc-shaped outer frame and scraper to regularly scrape the dirt on the lower surface of the top mold, so as to avoid the dirt on the lower surface of the top mold from affecting the subsequent fiber hot pressing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating the use of this utility model; Figure 2 This is an exploded view of the hot pressing mechanism of this utility model; Figure 3 This is a schematic diagram of the mold surface cleaning mechanism of this utility model; Figure 4 This utility model Figure 3Enlarged view of point A in the middle; Figure 5 This utility model Figure 3 Enlarged diagram of point B in the middle.

[0016] Figure label: 100. Hot pressing mechanism; 110. Bottom mold bracket; 1101. Limiting end plate; 1102. Stud; 120. Bottom mold; 130. Top mold; 1301. Fixed end plate; 1302. Limiting plate; 140. First spring; 150. Baffle; 1501. Column head; 160. Vertical rod; 200. Mold surface cleaning mechanism; 210. Truss; 2101. Pad; 2102. Shaft; 2103. Guide pad; 220. Base; 2201. Rectangular slider; 230. Second spring; 240. Third spring; 250. Arc-shaped outer frame; 260. Scraper; 2601. Beam; 270. Crossbar; 2701. Cable pulley; 280. Cable. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0018] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0019] The following describes, with reference to the accompanying drawings, some embodiments of a hot air nonwoven fabric hot pressing molding device provided by this utility model.

[0020] Example 1: Combination Figures 1 to 5 As shown, the present invention provides a hot air nonwoven fabric hot pressing molding equipment, including a hot pressing mechanism 100 and a mold surface cleaning mechanism 200 installed on the hot pressing mechanism 100. The hot pressing mechanism 100 is used to perform hot pressing treatment on the fibers after hot air is blown and evenly spread, and the mold surface cleaning mechanism 200 is used to scrape the pressure surface of the top mold inside the hot pressing mechanism 100.

[0021] The hot pressing mechanism 100 includes a bottom mold bracket 110, a limiting end plate 1101 fixedly installed on the outside of the bottom mold bracket 110, a bottom mold 120 installed inside the bottom mold bracket 110, a vertical rod 160 movably installed inside the limiting end plate 1101, a fixed end plate 1301 fixedly installed at the top of the vertical rod 160, a top mold 130 fixedly installed on the fixed end plate 1301, and a plurality of studs 1102 fixedly installed on the outside of the bottom mold bracket 110. The mold surface cleaning mechanism 200 includes four trusses 210 mounted on multiple studs 1102. A base 220 is movably installed in two adjacent trusses 210. Two rectangular sliders 2201 are installed on the base 220. An arc-shaped outer frame 250 is provided inside the base 220. A scraper 260 is provided at the top of the arc-shaped outer frame 250. A second spring 230 is fixedly installed at the bottom of the base 220. The other end of the second spring 230 is fixedly installed on the plate end at the bottom of the arc-shaped outer frame 250. A through hole is opened inside the scraper 260. A beam 2601 is inserted into the through hole. The beam 2601 is adapted to pass through the hole at the top of the arc-shaped outer frame 250.

[0022] Preferably, a nut is provided on the threaded section of the stud 1102, and the inner end of the truss 210 is inserted into the outside of two adjacent studs 1102. The truss 210 is installed on the two adjacent studs 1102 by two nuts, and the two adjacent trusses 210 provide lateral sliding support for the base 220. When the external hydraulic system pushes the top mold 130 to rise and fall regularly, the fixed end plate 1301 fixed on the top mold 130 will work with the vertical rod 160 to extend smoothly along the inside of the limiting end plate 1101. As the hot air flow passes through the two opening areas of the top groove of the bottom mold 120, the fibers are fed until they are evenly spread in the groove of the bottom mold 120. When the top mold 130 is completely lowered and pressed against the top groove of the bottom mold 120, the evenly spread fibers will be quickly hot-pressed.

[0023] Example 2: Combination Figure 2 and Figure 3 As shown, based on embodiment 1, a transverse groove is provided inside the top mold 130, and two limiting plates 1302 are fixedly installed on the top of the top mold 130. A first spring 140 is fixedly installed on the limiting plate 1302, and a baffle 150 is movably installed in the transverse groove. Two column heads 1501 are fixedly installed on the top of the baffle 150, and the column heads 1501 are adapted to penetrate into the limiting plate 1302. The bottom end of the first spring 140 is adapted to bear pressure on the baffle 150. A limiting groove is provided on the inner side of the baffle 150, and the scraper 260 is adapted to bear pressure in the limiting groove.

[0024] Preferably, the two first springs 140 provide elastic support for the baffle 150 and the two pillars 1501 to return to their original position. In the initial state, under the traction of the two first springs 140 and the two pillars 1501, the top surface of the baffle 150 will be flush with the upper surface of the top mold 130. As the scraper 260 moves laterally along the lower surface of the vertical rod 160 and approaches the baffle 150, the fiber grooves on the inner side of the baffle 150 provide a stable pressure-bearing platform for the scraper 260, ensuring that the scraper 260 blade is adapted and aligned with the side edge of the bottom of the top mold 130 after resetting.

[0025] Example 3: Combination Figures 2 to 5 As shown, in the above embodiment, a slide rail is provided inside the truss 210, and a pad 2101 and a shaft 2102 are inserted into the two trusses 210. A guide pad 2103 is installed on the shaft 2102, and a horizontally placed third spring 240 is fixedly installed between the pad 2101 and the base 220. A horizontal bar 270 is fixedly installed at the bottom end of the vertical bar 160, and two cable pulleys 2701 are installed on the bar segment of the horizontal bar 270. A cable 280 is connected to the cable pulley 2701, and the other end of the cable 280 is fixedly installed on the base 220. The base 220 has a rectangular vertical hole inside, and two column heads are fixedly installed on both sides of the base 220. Two rectangular sliders 2201 are movably installed on the two column heads respectively.

[0026] When the vertical rod 160 and the top mold 130 descend synchronously, the bottom end of the vertical rod 160 will push the horizontal rod 270 and the two cable pulleys 2701 to descend. The two cable pulleys 2701 will stretch the two cables 280. The two bases 220 under traction will also drive the two arc-shaped outer frames 250 to slide outward along the inner side of the two sets of trusses 210. As the bases 220 slide outward, the arc-shaped outer frames 250 will also descend along the rectangular vertical holes inside the bases 220. This process can control the scraper 260 to quickly scrape the dirt off the lower surface of the top mold 130. The guide pad 2103 has a semi-circular structure, and an arc-shaped groove is provided in the middle of the outer side of the guide pad 2103, and the cable 280 is adapted to pass through the arc-shaped groove.

[0027] The working principle and usage process of this utility model are as follows: When the hot airflow blows the fibers until they are evenly distributed on the upper surface of the bottom mold 120, the external hydraulic system is used to push the descending tube of the top mold 130. When the top mold 130, which is preheated to a constant temperature, descends, the bottom end of the vertical rod 160 will push the horizontal rod 270 and the two cable pulleys 2701 to descend synchronously. The two cable pulleys 2701 will pull the two cables 280 to stretch outward. Finally, the base 220 connected to the other end of the cable 280 will drive the arc-shaped outer frame 250 and the scraper 260 to scrape laterally along the lower surface of the top mold 130, and the dirt remaining on the lower surface of the top mold 130 will be actively scraped off. As the top mold 130 continues to descend until the scraper 260 moves the bottom of the top mold 130 away, the top mold 130 will fit into the top groove of the bottom mold 120 without obstruction and perform thermoplastic treatment on the evenly laid fiber layer. After the thermoplastic treatment is completed, the lifted top mold 130 will work with the scraper 260 to reset and scrape off the residual dirt after the thermoplastic treatment.

[0028] After the evenly distributed fibers are thermoplasticized, the top mold 130 is lifted upwards using an external hydraulic system until the bottom mold 120 and the top mold 130 expand to their maximum extent.

[0029] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A hot air nonwoven fabric hot pressing forming device, comprising a hot pressing mechanism (100), characterized in that, It also includes a mold surface cleaning mechanism (200) installed on the hot pressing mechanism (100); The hot pressing mechanism (100) includes a bottom mold bracket (110), a limiting end plate (1101) is fixedly installed on the outside of the bottom mold bracket (110), a bottom mold (120) is installed inside the bottom mold bracket (110), a vertical rod (160) is movably installed inside the limiting end plate (1101), a fixed end plate (1301) is fixedly installed at the top of the vertical rod (160), and a top mold (130) is fixedly installed on the fixed end plate (1301). The mold surface cleaning mechanism (200) includes four trusses (210), and a base (220) is movably installed in two adjacent trusses (210). Two rectangular sliders (2201) are installed on the base (220). An arc-shaped outer frame (250) is provided inside the base (220). A scraper (260) is provided at the top of the arc-shaped outer frame (250), and a second spring (230) is fixedly installed at the bottom of the base (220). The other end of the second spring (230) is fixedly installed on the plate end at the bottom of the arc-shaped outer frame (250).

2. The hot air nonwoven fabric hot pressing molding equipment according to claim 1, characterized in that, The top mold (130) has a transverse groove inside, and two limiting plates (1302) are fixedly installed on the top of the top mold (130). A first spring (140) is fixedly installed on the limiting plate (1302), and a baffle (150) is movably installed in the transverse groove. Two column heads (1501) are fixedly installed on the top of the baffle (150), and the column heads (1501) are adapted to penetrate into the limiting plate (1302). The bottom end of the first spring (140) is adapted to bear pressure on the baffle (150), and multiple studs (1102) are fixedly installed on the outside of the bottom mold bracket (110).

3. The hot air nonwoven fabric hot pressing molding equipment according to claim 2, characterized in that, The baffle (150) has a limiting groove on its inner side, and the scraper (260) is adapted to bear pressure in the limiting groove.

4. The hot air nonwoven fabric hot pressing molding equipment according to claim 1, characterized in that, The scraper (260) has a through hole inside, and a beam (2601) is inserted into the through hole. The beam (2601) is adapted to pass through the hole at the top of the arc-shaped outer frame (250).

5. The hot air nonwoven fabric hot pressing molding equipment according to claim 1, characterized in that, The truss (210) has a slide rail inside. Two trusses (2100) are inserted with pads (2101) and shafts (2102). A guide pad (2103) is installed on the shaft (2102). A horizontal third spring (240) is fixedly installed between the pad (2101) and the base (220). The four trusses (210) are installed on multiple studs (1102).

6. The hot air nonwoven fabric hot pressing molding equipment according to claim 1, characterized in that, A horizontal bar (270) is fixedly installed at the bottom end of the vertical bar (160). Two cable pulleys (2701) are installed on the bar segment of the horizontal bar (270). A cable (280) is connected to the cable pulley (2701), and the other end of the cable (280) is fixedly installed on the base (220).

7. The hot air nonwoven fabric hot pressing molding equipment according to claim 1, characterized in that, The base (220) has a rectangular vertical hole inside, and two column heads are fixedly installed on both sides of the base (220). The two rectangular sliders (2201) are respectively movably installed on the two column heads.

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