Paper mold wet embryo forming mechanism

Abstract

The utility model belongs to the technical field of paper mold hot pressing processing, and specifically relates to a paper mold wet blank forming mechanism. In the paper mold wet blank forming mechanism of the utility model, the movable mold assembly can be slidably connected to the frame through a vertical guide mechanism, and a synchronization mechanism is configured for the movable mold assembly, the synchronization mechanism includes two sets of racks respectively connected to the frame and a gear connected to the movable mold assembly, while the movable mold assembly is lifting and lowering, the gear moves along the rack in a meshing motion, and the two sets of gear teeth are meshed to limit the movable mold assembly to maintain vertical movement, avoid the phenomenon of lateral slight deflection of the movable mold assembly, ensure that the thickness of the formed paper mold wet blank is consistent as a whole when the movable mold assembly is closed, and improve the reliability of product production.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot pressing of paper molds, and in particular relates to a paper mold wet embryo forming mechanism. Background Art

[0002] Pulp molding is a three-dimensional papermaking technology. It uses waste paper as raw material and uses special molds on a molding machine to shape paper products of a certain shape. Its production process is completed by pulping, adsorption molding, drying and shaping, etc. It is harmless to the environment and can be recycled. In addition to making lunch boxes and tableware, pulp molding is also used for industrial cushioning packaging to improve the recycling rate of waste paper resources.

[0003] The process of making pulp molding generally requires wet blank forming, drying, hot pressing and trimming. After the forming process, the wet blank of the paper mold will be slightly deformed after drying, and needs to be dehumidified by spraying water, and then hot pressing and trimming to make the surface of the paper mold smooth and beautiful, and finally the burrs are cut off. For the existing wet blank forming mechanism of paper mold, the linear actuators that drive the lifting movement of the movable mold assembly are generally provided with two and located on both sides. However, during the forming process of the wet blank of the paper mold, it is easy for the output rods of the linear actuators on both sides to work incompletely synchronously, which may cause one side of the movable mold assembly to be incompletely closed when closing the mold with the fixed mold assembly, resulting in the overall thickness of the formed wet blank of the paper mold being inconsistent, affecting the product quality. Utility Model Content

[0004] The utility model aims to overcome the problem that the existing paper mold wet blank forming mechanism has the problem that the linear drive does not work completely synchronously during operation, resulting in the overall thickness inconsistency of the formed paper mold wet blank, and provides a paper mold wet blank forming mechanism which is equipped with linear drives on both sides to work synchronously.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A paper mold wet embryo forming mechanism comprises a frame, a movable mold assembly arranged on the frame, a fixed mold assembly and at least two linear drivers, wherein the movable mold assembly is slidably connected to the frame through a vertical guide mechanism, and the linear driver is used to drive the movable mold assembly to move in a vertical direction and to close or separate the mold with the fixed mold assembly; and further comprises a synchronization structure, wherein the synchronization structure comprises a synchronization rod and at least two sets of mutually meshing gears and racks located on both sides of the frame, wherein the racks are arranged along the direction of the vertical guide mechanism, and the gears are respectively arranged on the synchronization rods, and both ends of the synchronization rods are rotatably connected to the movable mold assembly, and when the linear driver drives the movable mold assembly to move back and forth, each gear respectively performs meshing movement along the length direction of the corresponding rack.

[0007] Compared with the prior art, the paper mold wet embryo forming mechanism of the utility model has a movable mold assembly that can be slidably connected to the frame through a vertical guiding mechanism, and a synchronization mechanism is configured for the movable mold assembly, the synchronization mechanism includes two groups of racks respectively connected to the frame and a gear connected to the movable mold assembly, when the movable mold assembly is lifted and lowered, the gear moves along the rack in a meshing motion, and the two groups of gear teeth are meshed to limit the movable mold assembly to maintain vertical movement, thereby avoiding the phenomenon of slight lateral deflection of the movable mold assembly, ensuring that the thickness of the formed paper mold wet embryo remains consistent as a whole when the movable mold assembly is closed, thereby improving the reliability of product production.

[0008] Furthermore, key grooves are respectively provided on the outer sides of both sides of the synchronization rod, and the two key grooves are respectively arranged in the same radial direction of the synchronization rod and are located on the same straight line along the length direction; through such an arrangement, the teeth of the two gears are consistent along each radial direction, ensuring the synchronization of the two gears when rotating.

[0009] Furthermore, it also includes a slide arranged at the output end of the linear drive, the vertical guiding mechanism includes a guide sleeve arranged on the frame and a guide column of the sliding sleeve arranged on the guide sleeve, and the guide column is respectively connected to the slide and the movable mold assembly; the movable mold assembly is located on the lower side of the fixed mold assembly. Through such an arrangement, the linear drive indirectly drives the movable mold assembly to perform lifting movement on the lower side of the fixed mold assembly by arranging the slide, and the structure is compact.

[0010] Furthermore, both ends of the synchronization rod are rotatably connected to the slide through bearing seats, the slide is provided with an elongated hole arranged along the direction of the rack, the bearing seat is provided with a connecting hole matched with the elongated hole, and the bearing seat is adjustably connected to the slide along the direction of the elongated hole; through such an arrangement, the synchronization rod can be fine-tuned when installed through the bearing seat, ensuring that the gear and the rack are better meshed through fine-tuning.

[0011] Furthermore, the linear drive is provided with two groups, and the gears and racks are provided with two groups correspondingly, and the gears are arranged on a side close to the corresponding linear drive; through such an arrangement, the gears are arranged close to the corresponding linear drive, so that the meshing operation effect of the gears and racks is better.

[0012] Furthermore, a movable mold cavity is provided on the top of the movable mold assembly, and the movable mold assembly is equipped with a liquid adsorption mechanism connected to the movable mold cavity; through such an arrangement, after the movable mold assembly extracts slurry from the slurry pool, the liquid therein can be absorbed by the liquid adsorption mechanism to form a wet paper mold embryo.

[0013] Furthermore, a fixed mold cavity is provided at the bottom of the fixed mold assembly, and the fixed mold assembly is equipped with a vacuum adsorption mechanism and a paper mold blowing mechanism connected to the fixed mold cavity; through such an arrangement, the fixed mold assembly has the functions of vacuum adsorption and blowing to release the paper mold, which facilitates the fixed mold assembly to adsorb and release the paper mold.

[0014] Furthermore, it also includes a transverse slide device and a transverse driver arranged on the frame, the fixed mold assembly is slidably arranged on the frame through the transverse slide device, and the transverse driver is used to drive the fixed mold assembly to extend relatively to the outside or reset to the upper side of the movable mold assembly; through such an arrangement, the fixed mold assembly has the function of vacuum adsorption and blowing to release the paper mold, and cooperates with the transverse driver to drive the fixed mold assembly to move, so that the fixed mold assembly has the function of transferring the position of the paper mold, which is convenient for the unloading work after the wet mold of the paper mold is formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the paper mold wet embryo forming mechanism Figure 1 .

[0016] Figure 2 Schematic diagram of the paper mold wet embryo forming mechanism Figure 2 .

[0017] Figure 3 Schematic diagram of the paper mold wet embryo forming mechanism Figure 3 .

[0018] Figure 4 for Figure 3 A partial enlarged view of area A.

[0019] Figure 5 Schematic diagram of the paper mold wet embryo forming mechanism Figure 4 .

[0020] Figure 6 for Figure 5 The partial view of area B in the middle is the larger picture. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention is described below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] See also Figures 1 to 6The paper mold wet embryo forming mechanism of the utility model comprises a frame 1, a movable mold assembly 2, a fixed mold assembly 3 and at least two linear drivers 4 arranged on the frame 1, wherein the movable mold assembly 2 is slidably connected to the frame 1 through a vertical guide mechanism, and the linear driver 4 is used to drive the movable mold assembly 2 to move in the vertical direction and to close or separate the mold relative to the fixed mold assembly 3; and further comprises a synchronization structure, wherein the synchronization structure comprises a horizontally arranged synchronization rod 53 and at least two sets of mutually meshing gears 51 and racks 52 located on both sides of the frame 1, wherein the racks 52 are arranged along the direction of the vertical guide mechanism, and the gears 51 are respectively arranged on the synchronization rods 53, and the two ends of the synchronization rods 53 are rotatably connected to the movable mold assembly 2, and when the linear driver 4 drives the movable mold assembly 2 to move back and forth, each gear 51 respectively performs meshing movement along the length direction of the corresponding rack 52.

[0023] Compared with the prior art, in the paper mold wet embryo forming mechanism of the utility model, the movable mold assembly 2 can be slidably connected to the frame 1 through a vertical guiding mechanism, and a synchronization mechanism is configured for the movable mold assembly 2, the synchronization mechanism includes two groups of racks 52 respectively connected to the frame 1 and a gear 51 connected to the movable mold assembly 2. When the movable mold assembly 2 is lifted and lowered, the gear 51 moves along the rack 52 in a meshing motion. The two groups of gear teeth are meshed to limit the movable mold assembly 2 to maintain vertical movement, thereby avoiding the lateral slight deflection of the movable mold assembly 2, ensuring that the thickness of the formed paper mold wet embryo remains consistent as a whole when the movable mold assembly 2 is closed, thereby improving the reliability of product production.

[0024] See also Figures 2 to 6 In one embodiment, key grooves (not shown) are respectively provided on the outer sides of the synchronization rod 53, and the two key grooves are respectively arranged in the same radial direction of the synchronization rod 53 and the two are located on the same straight line along the length direction; through such an arrangement, the teeth of the two gears 51 are consistent along each radial direction, ensuring the synchronization of the two gears 51 when rotating.

[0025] See also Figures 2 to 6 In one embodiment, it also includes a slide 11 arranged at the output end of the linear drive 4, the vertical guiding mechanism includes a guide sleeve 12 arranged on the frame 1 and a guide column 13 whose sliding sleeve is arranged on the guide sleeve 12, and the guide column 13 is respectively connected to the slide 11 and the movable mold assembly 2; the movable mold assembly 2 is located at the lower side of the fixed mold assembly 3, the slide 11 is connected to the upper end of the guide column 13, and the movable mold assembly 2 is connected to the lower end of the guide column 13. Through such an arrangement, the linear drive 4 is indirectly driven by the slide 11 to perform lifting and lowering movements on the lower side of the fixed mold assembly 3, and the structure is compact.

[0026] See also Figures 2 to 6In one embodiment, both ends of the synchronization rod 53 are rotatably connected to the slide 11 through bearing seats 54 respectively. The slide 11 is provided with an elongated hole (not shown) arranged along the direction of the rack 52. The bearing seat 54 is provided with a connecting hole (not shown) matched with the elongated hole. The connecting hole is connected to the elongated hole through a connecting member such as a screw, and the bearing seat 54 is adjustably connected to the slide 11 along the direction of the elongated hole. Through such an arrangement, the synchronization rod 53 can be fine-tuned when installed through the bearing seat 54, ensuring that the gear 51 and the rack 52 are better meshed through fine-tuning.

[0027] See also Figures 1 to 6 In one embodiment, the linear drive 4 is provided with two groups, and the linear drive 4 is preferably a pneumatic cylinder or an oil cylinder. The gear 51 and the rack 52 are provided with two groups respectively, and the gear 51 is arranged on a side close to the corresponding linear drive 4; through such an arrangement, the gear 51 is arranged close to the corresponding linear drive 4, so that the meshing operation effect of the gear 51 and the rack 52 is better.

[0028] See also Figures 2 to 6 In one embodiment, a movable mold cavity 21 is provided on the top of the movable mold assembly 2, and the movable mold assembly 2 is equipped with a liquid adsorption mechanism 22 connected to the movable mold cavity 21; through such a configuration, the movable mold assembly 2 can absorb the liquid in the slurry through the liquid adsorption mechanism 22 after extracting the slurry from the slurry pool to form a wet paper mold embryo.

[0029] See also Figures 1 to 6 In one embodiment, a fixed mold cavity 31 is provided at the bottom of the fixed mold assembly 3, and the fixed mold assembly 3 is equipped with a vacuum adsorption mechanism (not shown) and a paper mold blowing mechanism (not shown) connected to the fixed mold cavity 31; through such an arrangement, the fixed mold assembly 3 has the functions of vacuum adsorption and blowing to release the paper mold, which facilitates the fixed mold assembly 3 to adsorb and release the paper mold.

[0030] See also Figures 3 to 6 In one embodiment, it also includes a transverse slide device 14 and a transverse driver 25 provided on the frame 1, wherein the transverse driver 25 is, for example, a push rod, and the fixed mold assembly 3 is slidably provided on the frame 1 through the transverse slide device 14, and the transverse driver 25 is used to drive the fixed mold assembly 3 to extend relatively to the outside or reset to the upper side of the movable mold assembly 2; through such a setting, the fixed mold assembly 3 has the function of vacuum adsorption and blowing to release the paper mold, and cooperates with the transverse driver 25 to drive the fixed mold assembly 3 to move, so that the fixed mold assembly 3 has the function of transferring the position of the paper mold, which is convenient for the unloading work after the wet mold of the paper mold is formed.

[0031] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A paper mold wet blank forming mechanism, comprising a frame, a movable mold assembly, a fixed mold assembly and at least two linear actuators arranged on the frame, wherein the movable mold assembly is slidably connected to the frame through a vertical guide mechanism, and the linear actuator is used to drive the movable mold assembly to move in a vertical direction and to engage or separate with the fixed mold assembly; characterized in that: It also includes a synchronization structure, which includes a synchronization rod and two groups of mutually meshing gears and racks located at least on both sides of the frame, the racks are arranged along the direction of the vertical guide mechanism, the gears are respectively arranged on the synchronization rod, and the two ends of the synchronization rod are rotatably connected to the movable mold assembly. When the linear drive drives the movable mold assembly to reciprocate, each gear performs meshing movement along the length direction of the corresponding rack.

2. The paper mold wet embryo forming mechanism according to claim 1, characterized in that: Key grooves are respectively arranged on the outer sides of both sides of the synchronization rod. The two key grooves are respectively arranged in the same radial direction of the synchronization rod and are located on the same straight line along the length direction.

3. The paper mold wet embryo forming mechanism according to claim 1, characterized in that: It also includes a slide arranged at the output end of the linear drive, and the vertical guiding mechanism includes a guide sleeve arranged on the frame and a guide column of the sliding sleeve arranged on the guide sleeve, and the guide column is respectively connected to the slide and the movable mold assembly.

4. The paper mold wet embryo forming mechanism according to claim 3, characterized in that: The two ends of the synchronization rod are rotatably connected to the slide through bearing seats. The slide is provided with an elongated hole arranged along the direction of the rack. The bearing seat is provided with a connecting hole that cooperates with the elongated hole. The bearing seat is adjustably connected to the slide along the direction of the elongated hole.

5. The paper mold wet embryo forming mechanism according to claim 1, characterized in that: The linear drive is provided with two groups, and the gears and racks are provided with two groups correspondingly, and the gears are arranged on a side close to the corresponding linear drive.

6. The paper mold wet embryo forming mechanism according to claim 3, characterized in that: The movable mold assembly is located at the lower side of the fixed mold assembly.

7. The paper mold wet embryo forming mechanism according to any one of claims 1 to 6, characterized in that: A movable mold inner cavity is provided on the top of the movable mold assembly, and the movable mold assembly is provided with a liquid adsorption mechanism connected with the movable mold inner cavity.

8. The paper mold wet embryo forming mechanism according to any one of claims 1 to 6, characterized in that: A fixed mold cavity is provided at the bottom of the fixed mold assembly, and the fixed mold assembly is equipped with a vacuum adsorption mechanism and a paper mold blowing mechanism connected to the fixed mold cavity.

9. The paper mold wet embryo forming mechanism according to any one of claims 1 to 6, characterized in that: It also includes a transverse slide rail device and a transverse driver arranged on the frame. The fixed mold assembly is slidably arranged on the frame through the transverse slide rail device. The transverse driver is used to drive the fixed mold assembly to extend relatively to the outside or reset to the upper side of the movable mold assembly.

10. The paper mold wet embryo forming mechanism according to claim 9, characterized in that: A fixed mold cavity is provided at the bottom of the fixed mold assembly, and the fixed mold assembly is equipped with a vacuum adsorption mechanism and a paper mold blowing mechanism connected to the fixed mold cavity.

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