Device for three-dimensional paper pulp molding with impaction missing concave feature

Abstract

The utility model discloses a device for a three-dimensional paper pulp molding missing concave characteristic, and relates to the technical field of paper pulp molding, in particular to the device for the three-dimensional paper pulp molding missing concave characteristic, which comprises a lower template and an upper template, a concave hitting cushion block is fixedly installed on the bottom face of the lower concave die cavity, an upper convex die is installed in the middle of the top face of the upper die plate, and a cutter blade is installed in the middle of the bottom face of the upper convex die. Through the cooperative arrangement of the upper template, the upper male die, the lower limiting block and the upper guide column, the device for the three-dimensional paper pulp molding punching missing concave feature has the effect that the depth of a concave mark is conveniently trimmed, and through the cooperative arrangement of the lower female die and a cutter point of a breaking cutter, the concave mark can be conveniently trimmed; therefore, the device for the three-dimensional pulp molding indentation missing characteristic has the effect that all inspectors can find out indented unqualified products at the first time without CCD detection.

Description

Technical Field

[0001] The utility model relates to the technical field of pulp molding, in particular to a device for three-dimensional pulp molding leak-hit concave features. Background Art

[0002] The recycling mark of three-dimensional pulp molding products is generally made by post-process denting. Compared with the recycling mark made by molding, post-process denting not only makes the recycling mark clearer but also has tougher lines. However, in the prior art, post-process denting may result in missed dents or insufficient dent depth due to the deviation of the punch position, and it is not easy to trim. Different staff will have different judgment standards for the situation of insufficient depth, which leads to different depths of the recycling mark on the finished product. Some customers regard it as a defect affecting product sales. If it passes CCD inspection, it will increase production costs. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the shortcomings of the prior art, the utility model provides a device for three-dimensional pulp molding leak-hit concave features, which solves the problems raised in the above background technology.

[0005] (II) Technical solution

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a device for three-dimensional pulp molding missing concave features, including a lower template and an upper template, a lower concave mold is installed in the middle position above the lower template, a concave pad is fixedly installed on the bottom surface of the lower concave mold cavity, an upper punch is installed in the middle position of the top surface of the upper template, a broken knife edge is installed in the middle position of the bottom surface of the upper punch, and circulation marking punches are installed on both sides of the broken knife edge on the bottom surface of the upper punch, a double-lapped product is arranged between the lower concave mold and the upper punch, the double-lapped product includes product A and product B, and the waste edge overlap around product A and product B forms a waste edge connection.

[0007] Preferably, there are two circulating marking punches and two denting pads, and their upper and lower positions correspond one to one. When the upper male die and the lower female die are closed, the circulating marking punch moves downward and presses the product onto the denting pad. The circulating marking mark is pressed out in the middle position of product A and product B respectively through the extrusion of the circulating marking punch and the denting pad.

[0008] Preferably, the cutting edge of the cutting knife is located just above the middle position of the waste edge connection, and the length of the cutting edge is greater than the length of the waste edge connection. When the upper punch and the lower die are closed, the cutting edge of the cutting knife moves downward and contacts the bottom surface of the lower die. At this time, the waste edge connection is cut off and the double-lapped product is divided into product A and product B.

[0009] Preferably, lower limit blocks are installed on the upper part of the lower template near both sides of the lower concave mold, and upper guide pillars are installed on the lower part of the upper template near both sides of the upper punch. When the upper punch and the lower concave mold are closed, they are guided by the upper guide pillars and stop and limit by the collision of the upper guide pillars with the lower limit blocks.

[0010] Preferably, the upper punch is not a whole but is composed of three independent plates. The three plates serve as mounting seats for a breaking knife blade and two circulation marking punches respectively. The breaking knife blade and the circulation marking punch are connected to the upper punch by being positioned by a groove and locked with a top screw to achieve quick change. The three plates can change the installation height by adjusting the guide shaft with a spring and the screw, wherein the length dimension of the middle plate is greater than the length dimension of the two side plates.

[0011] Preferably, the cavity of the lower die is gap-matched with the double-lapped products, and the length of the cavity is equal to the sum of the lengths of product A and product B minus the width of a waste edge, so that the two waste edges on the inner side of product A and product B just overlap after being placed in the cavity.

[0012] The utility model provides a device for three-dimensional pulp molding leaking concave features, which has the following features:

[0013] Beneficial effects:

[0014] 1. The device for three-dimensional pulp molding missed concave features has the effect of facilitating the adjustment of the depth of the dents through the coordinated arrangement of the upper template, the upper punch, the lower limit block and the upper guide column. Since the upper punch is not a whole and each part is adjusted by an independent guide shaft with a spring and a screw, when the mold is closed and the lower limit block is in contact with the upper guide column, the installation height of each plate of the upper punch relative to the upper template can be adjusted by turning the screw, thereby changing the depth of the downward pressure of each cycle marking punch, thereby achieving the effect of facilitating the adjustment of the depth of the dents.

[0015] 2. The device for detecting missed concave features in three-dimensional pulp molding, through the coordinated setting of the lower concave mold and the broken knife blade, enables the inspectors to find unqualified concave products at the first time without CCD detection. A cavity is opened in the middle of the lower concave mold to place two products at the same time with the inner waste edges overlapped, and the broken knife blade can just cut the waste edge connection when the mold closing and pressing cycle mark is set. Therefore, the inspectors do not need CCD detection, but only need to check whether the waste edge connection of the two products is cut to know whether the concave depth is qualified, which is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the front view of the utility model;

[0017] Figure 2 It is a structural schematic diagram of a partial stereoscopic view of the utility model.

[0018] In the figure: 1. Lower template; 2. Upper template; 3. Lower concave die; 4. Concave pad; 5. Upper punch; 6. Breaker blade; 7. Circular marking punch; 8. Double-lapped product; 801. Product A; 802. Product B; 803. Waste edge connection; 9. Lower limit block; 10. Upper guide column. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1 to Figure 2The utility model provides a technical solution: a device for three-dimensional pulp molding missing concave features, comprising a lower template 1 and an upper template 2, a lower concave mold 3 is installed in the middle position above the lower template 1, a concave pad 4 is fixedly installed on the bottom surface of the cavity of the lower concave mold 3, an upper punch 5 is installed in the middle position of the top surface of the upper template 2, lower limit blocks 9 are installed above the lower template 1 near both sides of the lower concave mold 3, and upper guide pillars 10 are installed below the upper template 2 near both sides of the upper punch 5. When the upper punch 5 is molded with the lower concave mold 3, it is guided by the upper guide pillars 10 and stopped by the collision of the upper guide pillars 10 with the lower limit blocks 9. Stop limit, a knife-breaking blade 6 is installed in the middle position of the bottom surface of the upper punch 5, and circulation marking punches 7 are installed on both sides of the bottom surface of the upper punch 5. The upper punch 5 is not a whole but consists of three independent plates, and the three plates serve as mounting seats for a knife-breaking blade 6 and two circulation marking punches 7 respectively. When the knife-breaking blade 6 and the circulation marking punch 7 are connected to the upper punch 5, they are positioned by the groove and locked with the top screw to achieve quick change. The three plates are adjusted by the guide shaft with a spring and the screw to change the installation height. The length of the middle plate is greater than the length of the two side plates, and the concave A double-lapped product 8 is arranged between the die 3 and the upper punch 5. The double-lapped product 8 includes product A 801 and product B 802. The waste edge overlaps around product A 801 and product B 802 form a waste edge connection 803. There are two circulation marking punches 7 and two concave pads 4, and the upper and lower positions correspond to each other. When the upper punch 5 and the lower concave die 3 are closed, the circulation marking punch 7 moves downward and presses the product onto the concave pad 4. The circulation marking mark is pressed out at the middle position of product A 801 and product B 802 by the extrusion of the circulation marking punch 7 and the concave pad 4. The broken knife edge 6 is located at the waste edge connection Just above the middle position of the joint 803, the length of the cutting blade 6 is greater than the length of the waste edge connection 803. When the upper punch 5 and the lower die 3 are closed, the cutting blade 6 moves downward and contacts the bottom surface of the lower die 3. At this time, the waste edge connection 803 is cut off and the double-lapped product 8 is divided into product A 801 and product B 802. The cavity of the lower die 3 is clearance-matched with the double-lapped product 8. The length of the cavity is equal to the sum of the lengths of product A 801 and product B 802 minus the width of a waste edge, so that the two waste edges on the inner side of product A 801 and product B 802 just overlap after being placed in the cavity.

[0021] When in use, first make the upper punch 5 and the lower die 3 according to the size of the product, requiring that the cavity of the lower die 3 and the double-lapped product 8 have a clearance fit, and the length of the cavity is equal to the sum of the lengths of product A 801 and product B 802 minus the width of a waste edge, so that the two waste edges on the inner side of product A 801 and product B 802 are just overlapped after being placed in the cavity, and further make the lower limit block 9 and the upper guide column 10 according to the stroke of the upper punch 5 and the lower die 3 for mold closing, requiring that the blade 6 of the broken knife and the circulation marking punch 7 just touch the product but do not squeeze downward when the upper guide column 10 collides with the lower limit block 9, and further put the double-lapped product 8 into the lower die 3 and close the mold, requiring that the mold closing force is large enough, and further use a wrench to tighten the various screws of the upper punch 5 downward. In this process, the upper punch 5 is pressed downward under the guiding action of the guide shaft, wherein the upper punch 5 is divided into three independent plates, and the three plates are connected to the upper die 5 through independent guide shafts. The screw is adjusted, that is, when the screw above the breaking knife blade 6 is screwed down, the breaking knife blade 6 moves downward and cuts into the waste edge connection 803. When the screw above the circulation marking punch 7 is screwed down, the circulation marking punch 7 moves downward and presses into the product. The mold is further opened to take out the product and observe the indentation. If the indentation is clear enough and the waste edge connection 803 is basically not cut off, a new product is replaced for stamping. Then, the breaking knife blade 6 and the circulation marking punch 7 are further fine-tuned according to the stamping result, so that when the upper punch 5 is pressed down, not only the waste edge connection 803 can be cut off, but also a clear circulation mark can be left at the bottom of the product. During use, since the relative height of the breaking knife blade 6 and the circulation marking punch 7 has been adjusted, as long as the waste edge connection 803 is cut off, the circulation mark is also clearly printed accordingly. Therefore, the inspector only needs to see whether the double-mounted product 8 is cut off to determine whether the circulation mark of the product is printed, which is very convenient.

[0022] In summary, since the upper punch 5 is not a whole and each part is adjusted by an independent spring-loaded guide shaft and screw when the mold is closed and the lower limit block 9 is in contact with the upper guide column 10, the installation height of each plate of the upper punch 5 relative to the upper mold plate 2 can be adjusted by turning the screws, thereby changing the pressing depth of each cycle marking punch 7, thereby achieving the effect of facilitating the adjustment of the dent depth. By opening a cavity in the middle of the lower die 3 in which two products can be placed at the same time and the inner waste edges are overlapped, and setting the broken knife blade 6 when the mold is closed and the pressing cycle mark is set, it can just cut the waste edge connection 803, so that the inspector does not need CCD detection, just needs to see whether the waste edge connection 803 of the two products is cut to know whether the dent depth is qualified, which is very convenient.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for three-dimensional pulp molding leak-hit concave features, comprising a lower template (1) and an upper template (2), characterized in that: A lower die (3) is installed in the middle position above the lower template (1), a denting pad (4) is fixedly installed on the bottom surface of the cavity of the lower die (3), an upper punch (5) is installed in the middle position of the top surface of the upper template (2), a knife blade (6) is installed in the middle position of the bottom surface of the upper punch (5), and circulation marking punches (7) are installed on both sides of the knife blade (6) on the bottom surface of the upper punch (5), and a double-lapped product (8) is arranged between the lower die (3) and the upper punch (5), and the double-lapped product (8) includes a product A (801) and a product B (802), and the waste edge overlap around the product A (801) and the product B (802) forms a waste edge connection (803).

2. The device for three-dimensional pulp molding missing concave features according to claim 1, characterized in that: There are two circulation marking punches (7) and two denting pads (4) in number and their upper and lower positions correspond one to one. When the upper punch (5) and the lower die (3) are closed, the circulation marking punch (7) moves downward and presses the product onto the denting pad (4). Through the extrusion of the circulation marking punch (7) and the denting pad (4), the circulation marking mark is pressed out at the middle position of product A (801) and product B (802) respectively.

3. The device for three-dimensional pulp molding missing concave features according to claim 1, characterized in that: The cutting blade (6) is located just above the middle of the waste edge connection (803), and the length of the cutting blade (6) is greater than the length of the waste edge connection (803). When the upper punch (5) and the lower die (3) are molded together, the cutting blade (6) moves downward and contacts the bottom surface of the lower die (3). At this time, the waste edge connection (803) is cut off to divide the double-lapped product (8) into product A (801) and product B (802).

4. The device for three-dimensional pulp molding missing concave features according to claim 1, characterized in that: Lower limit blocks (9) are installed on the upper part of the lower mold (1) near the two sides of the lower concave mold (3), and upper guide pillars (10) are installed on the lower part of the upper mold (2) near the two sides of the upper punch (5). When the upper punch (5) and the lower concave mold (3) are closed, they are guided by the upper guide pillars (10) and the upper guide pillars (10) collide with the lower limit blocks (9) to achieve stop limit.

5. The device for three-dimensional pulp molding missing concave features according to claim 1, characterized in that: The upper punch (5) is not a whole but is composed of three independent plates. The three plates serve as mounting seats for a knife blade (6) and two circulation marking punches (7). When the knife blade (6) and the circulation marking punch (7) are connected to the upper punch (5), they are positioned by grooves and fastened with top screws to achieve quick change. The three plates are adjusted by adjusting the guide shaft with springs and screws to achieve the change of installation height, wherein the length of the middle plate is greater than the length of the two side plates.

6. The device for three-dimensional pulp molding missing concave features according to claim 1, characterized in that: The cavity of the lower die (3) is clearance-matched with the double-lapped product (8), and the length of the cavity is equal to the sum of the lengths of product A (801) and product B (802) minus the width of a waste edge, so that after product A (801) and product B (802) are placed in the cavity, the two waste edges on the inner side just overlap.

Images