PE composite hard sheet flattening device

Abstract

The application provides a PE composite hard sheet flattening device, which comprises a flattening mechanism, the flattening mechanism comprises a first base, two groups of first fixing mechanisms, a bottom plate and a plurality of pressing plates, the two groups of first fixing mechanisms are installed on the left and right ends of the upper surface of the first base, the bottom plate is fixedly installed on the two groups of first fixing mechanisms at both ends, one end of the pressing plate is fixedly installed on one group of first fixing mechanisms, the PE composite hard sheet is supported on the bottom plate, the PE composite hard sheet passes between the bottom plate and the pressing plate or between two adjacent pressing plates, the shape of the pressing plate is trapezoidal with the front being wide and the rear being narrow, and the effective width of the longest part of the pressing plate is smaller than the width of the PE composite hard sheet and greater than half of the width of the PE composite hard sheet. The PE composite hard sheet flattening device can make the overall thickness of the PE composite hard sheet uniform and the surface flatness high.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of composite hard sheet production equipment, in particular to a PE composite hard sheet flattening device. BACKGROUND

[0002] At present, with the increasing attention of the state to safe medication and food hygiene and the concern of people for their own health, food and medicine are very sensitive to moisture, humidity, light transmission. Once the material barrier is not strong, it often causes the failure or deterioration of food and medicine, and eating deteriorated food and ineffective medicine will have serious consequences. At present, PE solid pharmaceutical hard sheet is generally used.

[0003] Polyethylene (PE for short) is a thermoplastic resin prepared by polymerization of ethylene. In industry, it also includes copolymers of ethylene and a small amount of alpha-olefins. Polyethylene is odorless, non-toxic, and has a waxy feel, excellent low-temperature resistance (minimum use temperature can reach -100 to -70℃), good chemical stability, and can resist the corrosion of most acids and bases (not resistant to acids with oxidizing properties). It is insoluble in common solvents at room temperature, has low water absorption, and excellent electrical insulation. The melting point of general high-density polyethylene (HDPE) is 142℃, and the decomposition temperature is 300℃. The general use temperature for injection molding is 180℃-230℃.

[0004] The composite hard sheet needs to be kept flat when adhering to the capsule plate, but it is inevitable that the composite hard sheet will wrinkle during production, affecting the adhesion of the aluminum composite hard sheet to the capsule plate. The composite hard sheet needs to be flattened or rolled to ensure the flatness of the composite hard sheet. However, the aluminum composite hard sheet is generally manually operated or rolled by a single roller. Manual operation requires a long time, which reduces the processing efficiency of the composite hard sheet. The single roller rolling requires repeated rolling of the composite hard sheet under the single roller, which undoubtedly increases the processing time of the composite hard sheet.

[0005] The patent document with the publication number CN218395379U discloses an aluminum composite hard sheet flattening device, which comprises a treatment box, a motor connected to the upper middle part of the treatment box, a driving arm connected to the motor and penetrating through the treatment box and located inside the treatment box, a flattening piece connected to one end of the driving arm and sliding inside the treatment box, and the driving arm drives the flattening piece to reciprocate left and right to flatten the aluminum composite hard sheet. The flattening piece comprises a U-shaped frame connected to the inside of the treatment box, an installation rod connected to the inside of the U-shaped frame, a compression roller connected to the installation rod, and a sliding groove formed in the U-shaped frame. The cooperation between the motor and the driving arm can drive the flattening piece to reciprocate left and right in the treatment box to roll the aluminum composite hard sheet multiple times, making the aluminum composite hard sheet more flat. However, this technical solution has the following disadvantages: the repeated rolling method is affected by the flatness of the compression roller surface, the levelness of the compression roller, and the vibration of the compression roller, which can cause the thickness of the composite hard sheet to be uneven, and since the thickness of the composite hard sheet is relatively thin, the thickness change is very obvious. SUMMARY

[0006] The present application aims to solve the above technical problems and provide a PE composite hard sheet flattening device.

[0007] To achieve the above purpose, the present application adopts the following technical solutions:

[0008] A PE composite hard sheet flattening device, comprising a flattening mechanism, the flattening mechanism comprising a first base, two groups of first fixing mechanisms, a bottom plate, and a plurality of pressing plates, the two groups of first fixing mechanisms being installed on the left and right ends of the upper surface of the first base, the bottom plate being fixedly installed on the two groups of first fixing mechanisms at both ends, one end of the pressing plate being fixedly installed on one group of first fixing mechanisms, the PE composite hard sheet being supported on the bottom plate, and the PE composite hard sheet passing between the bottom plate and the pressing plate or between two adjacent pressing plates.

[0009] As a preferred technical solution, the pressing plate is in the shape of a trapezoid with a wide front and a narrow back, and the effective width of the longest part of the pressing plate is less than the width of the PE composite hard sheet and greater than half the width of the PE composite hard sheet.

[0010] As a preferred technical solution, the PE composite hard sheet flattening device further comprises a separation mechanism arranged behind the flattening mechanism, the separation mechanism comprising a second base, a second fixing mechanism, and a plurality of separation plates, the second fixing mechanism being installed on one end of the upper surface of the second base, and one end of the separation plate being fixedly installed on the second fixing mechanism.

[0011] As a preferred technical solution, the first fixing mechanism comprises a base, a plurality of fixing plates, and a fixing screw, four guide columns are upwardly extended on the four corners of the base, the bottom plate or the pressing plate is installed between two adjacent fixing plates, a threaded hole is formed in the fixing plate, and the fixing screw is threadedly connected with each fixing plate to fixedly install each fixing plate on the first base.

[0012] As a preferred technical solution, the second fixing mechanism comprises a base, a plurality of fixing plates and fixing screws, four guide columns are upwardly extended on four corners of the base, a partition plate is installed between two adjacent fixing plates, the fixing plate is provided with a threaded hole, and the fixing screw is threadedly connected with each fixing plate to fix and install each fixing plate on the second base.

[0013] As a preferred technical solution, the top of the fixing screw is provided with a rotating handle.

[0014] As a preferred technical solution, the flattening mechanism is provided with two groups, and the left and right directions of the pressing plates of the two groups of flattening mechanisms are opposite.

[0015] After the above technical solution is adopted, the present application has the following advantages:

[0016] The PE composite hard sheet flattening device can simultaneously flatten a plurality of PE composite hard sheets, and has high working efficiency. In addition, the PE composite hard sheet is extruded by the flattening mechanism bottom plate and the pressing plate and the pressing plate, and the PE composite hard sheet is not affected by the surface flatness, horizontal degree and vibration of the compression roller, so that the overall thickness of the PE composite hard sheet is uniform, and the surface flatness is high.

[0017] The effective width of the longest part of the pressing plate is less than the width of the PE composite hard sheet and greater than half the width of the PE composite hard sheet, and the PE material extends outward from the side of the pressing plate, so that the PE composite hard sheet can maintain overall uniformity after being extruded. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of a PE composite hard sheet flattening device;

[0019] Figure 2 It is a front view of a PE composite hard sheet flattening device;

[0020] Figure 3 It is a top view of a PE composite hard sheet flattening device;

[0021] Figure 4 It is a schematic view of the state of a PE composite hard sheet flattening device when not working;

[0022] Figure 5 It is a structural schematic view of a first fixing mechanism and a second fixing mechanism. DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.

[0024] As shown in Figures 1-4 A PE composite hard sheet flattening device includes a flattening mechanism and a separation mechanism arranged in front and back.

[0025] Two guide rollers (not shown) are arranged in front of the flattening mechanism to guide two groups of PE composite hard sheets into the flattening mechanism. The two guide rollers are located at the intersection of the Y-shaped two groups of PE composite hard sheets.

[0026] The flattening mechanism includes a first base 1, two groups of first fixing mechanisms, a bottom plate 2, and a plurality of pressing plates 3. The two groups of first fixing mechanisms are installed on the left and right ends of the upper surface of the first base 1, the bottom plate 2 is fixedly installed on the two groups of first fixing mechanisms at both ends, and one end of the pressing plate 3 is fixedly installed on one group of first fixing mechanisms.

[0027] The bottom plate 2 is used to support the PE composite hard sheet. According to the number of pressing plates 3, the PE composite hard sheet flattening device can be used to simultaneously flatten different numbers of PE composite hard sheets. In this embodiment, the number of pressing plates 3 of the flattening mechanism is set to two, the first group of PE composite hard sheets passes between the bottom plate 2 and the pressing plate 3, and the pressing plate 3 presses the first group of PE composite hard sheets tightly onto the bottom plate 2 to flatten the first group of PE composite hard sheets; the second group of PE composite hard sheets passes between the two bottom plates 2, and the upper pressing plate 2 presses the second group of PE composite hard sheets tightly onto the lower pressing plate 2 to flatten the second group of PE composite hard sheets.

[0028] The separation mechanism includes a second base 4, a second fixing mechanism, and a plurality of separation plates 5. The second fixing mechanism is installed on one end of the upper surface of the second base 4, and one end of the separation plate 5 is fixedly installed on the second fixing mechanism.

[0029] According to the number of flattened PE composite hard sheets, different numbers of separation plates 5 are arranged. In this embodiment, one separation plate 5 is arranged to separate the first group of PE composite hard sheets and the second group of PE composite hard sheets. Since the PE composite hard sheet has high hardness, the PE composite hard sheet still needs to be kept straight after being flattened by the flattening mechanism. The PE composite hard sheet still has residual heat after being flattened by the flattening mechanism due to the previous heating and extrusion process. If the separation mechanism is not arranged, the groups of PE composite hard sheets will be stuck due to mutual contact.

[0030] As shown in Figure 5As shown, the first fixing mechanism and the second fixing mechanism each include a base 6, a plurality of fixing plates 7 and two fixing screws 8. Four guide columns 9 extend upward from four corners of the base 6. The guide columns 9 arranged alternately left and right form mounting grooves for mounting the fixing plates 7, for mounting and left-right limiting of the fixing plates 7. The bottom plate 2 or the pressing plate 3 or the partition plate 5 is mounted between two adjacent fixing plates 7. The front and rear of the fixing plate 7 is provided with a threaded hole, and the two fixing screws 8 are threadedly connected with each fixing plate 7, for fixing and mounting each fixing plate 7 on the first base 1 or the second base 4. The top of the fixing screw 8 is provided with a rotating handle 10.

[0031] The pressing plate 3 is trapezoidal in shape, with the front being wide and the rear being narrow. The effective width of the longest part of the pressing plate 3 is less than the width of the PE composite hard sheet and greater than half the width of the PE composite hard sheet. The effective width of the pressing plate 3 refers to the contact width of the pressing plate 3 and the PE composite hard sheet. This width is less than the width of the PE composite hard sheet, and the reason is as follows: the PE composite hard sheet is thinned after being pressed, and the PE material will extend to the periphery due to the pressing. If the effective width of the pressing plate 3 completely covers the width of the PE composite hard sheet, and there is no excess space for the extended PE material, then the PE composite hard sheet will be deformed in the middle due to the extension of the PE material, resulting in a concave or bulge in the middle. In this embodiment, the effective width of the pressing plate 3 is set to be less than the width of the PE composite hard sheet, and the PE material will extend outward from the side of the pressing plate 3, so that the PE composite hard sheet can maintain overall uniformity after being pressed.

[0032] Of course, since the effective width of the pressing plate 3 is less than the width of the PE composite hard sheet, the PE composite hard sheet will have a part that is not flattened. After being flattened by the flattening mechanism, one side of the PE composite hard sheet is flattened, and the PE composite hard sheet needs to be turned over to be flattened for the second time by the flattening mechanism. Or a second set of flattening mechanisms for turning over the direction of the pressing plate 3 is arranged at the rear, and the PE composite hard sheet is flattened for the second time by the second set of flattening mechanisms.

[0033] In this embodiment, the shape of the partition plate 5 is the same as that of the pressing plate 3, and the production of the partition plate 5 and the pressing plate 3 is realized by the same mold, so as to reduce the cost of the device.

[0034] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0035] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description is made in this way only for the sake of clarity, and a person skilled in the art should consider the description as a whole, and the technical solutions in each embodiment can also be combined appropriately to form other embodiments that can be understood by a person skilled in the art.

Claims

1. A PE complex hard sheet flattening device, characterized by, The leveling mechanism comprises a first base, two groups of first fixing mechanisms, a bottom plate, and a plurality of pressing plates. The two groups of first fixing mechanisms are installed on the left and right ends of the upper surface of the first base. The bottom plate is fixedly installed on the two groups of first fixing mechanisms. One end of the pressing plate is fixedly installed on a group of first fixing mechanisms. The PE composite hard sheet is supported on the bottom plate and passes between the bottom plate and the pressing plate or between two adjacent pressing plates. The shape of the pressing plate is a trapezoid with a wide front and a narrow back. The front side of the pressing plate is the side facing the feed end of the PE composite hard sheet. The effective width of the longest part of the pressing plate is less than the width of the PE composite hard sheet and greater than half the width of the PE composite hard sheet. The leveling mechanism is provided with two groups. The left and right directions of the pressing plates of the two groups of leveling mechanisms are opposite.

2. The PE composite hard sheet flattening device according to claim 1, characterized in that, The PE composite hard sheet leveling device also comprises a separation mechanism arranged behind the leveling mechanism. The separation mechanism comprises a second base, a second fixing mechanism, and a plurality of separation plates. The second fixing mechanism is installed on one end of the upper surface of the second base. One end of the separation plate is fixedly installed on the second fixing mechanism.

3. The PE composite hard sheet flattening device according to claim 1, characterized in that, The first fixing mechanism comprises a base, a plurality of fixing plates, and a fixing screw. Four guide columns are upwardly extended on the four corners of the base. The bottom plate or the pressing plate is installed between two adjacent fixing plates. Threaded holes are provided on the fixing plates. The fixing screw is threadedly connected with each fixing plate to fixedly install each fixing plate on the first base.

4. The PE composite hard sheet smoothing device according to claim 2, characterized in that, The second fixing mechanism comprises a base, a plurality of fixing plates, and a fixing screw. Four guide columns are upwardly extended on the four corners of the base. The separation plate is installed between two adjacent fixing plates. Threaded holes are provided on the fixing plates. The fixing screw is threadedly connected with each fixing plate to fixedly install each fixing plate on the second base.

5. A PE composite hard sheet smoothing device according to claim 3 or 4, characterized in that, A rotating handle is provided on the top of the fixing screw.

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