Visual colorimetric box for PVC (polyvinyl chloride) sheets

Abstract

The utility model discloses a visual colorimetric box for PVC (Polyvinyl Chloride) sheets, which comprises a box body, a telescopic cylinder is arranged on the outer wall of the upper end of the box body, the telescopic end of the telescopic cylinder extends into the box body and is connected with a mounting plate, the lower end surface of the mounting plate is rotatably connected with a connecting column through a bearing seat, and the lower end surface of the connecting column is fixedly connected with the box body. One end of the connecting column extends out of the bearing seat and is provided with a first transmission gear, a driving motor is arranged on the upper end face of the mounting plate, an output shaft of the driving motor is provided with a second transmission gear, and the first transmission gear is matched and meshed with the second transmission gear; the connecting column is provided with a plurality of evenly-arranged irradiation lamps in the length direction of the connecting column. The mounting plate can be driven by the telescopic cylinder to move up and down to adjust the up-down position of the irradiation lamp, the connecting column and the irradiation lamp can be rotated through the driving motor, and the irradiation angle of the irradiation lamp is adjusted.

Description

Technical Field

[0001] This utility model relates to the field of artificial leather technology, and in particular to a visual colorimeter for PVC sheets. Background Technology

[0002] PVC sheets are rigid or semi-rigid sheets made primarily of polyvinyl chloride (PVC) resin through extrusion or calendering processes. They are widely used in packaging, building materials, decoration, and artificial leather. In the artificial leather industry, PVC serves as the support layer, bonded to the foam layer, and is used in shoe uppers, bags, etc. During the PVC sheet manufacturing process, since PVC resin is transparent, colorants, such as carbon black, are added to the PVC resin for some artificial leathers that require color. The mixture is then repeatedly extruded and mixed using a three-roll / four-roll calender to produce colored PVC sheets. After production, the PVC sheets need to be visually inspected to check the uniformity of the colorant mixing, especially for black PVC sheets. Because carbon black has strong coloring power, if the carbon black and PVC resin are not uniformly mixed, the PVC sheet will appear black overall. In this case, it is necessary to change the direction and angle of the light source to facilitate observation of the color depth and dispersion. In the prior art, such as the patent with patent number CN202022849940.1, a visual colorimeter box with an adjustable light source position is disclosed. Its light source can only move back and forth and up and down, and cannot change the illumination angle of the light source, which is not conducive to the observer distinguishing whether the color dispersion of black PVC sheet is uniform. Utility Model Content

[0003] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0004] A visual colorimetric box for PVC sheets includes a box body. The upper outer wall of the box body is provided with a telescopic cylinder. The telescopic end of the telescopic cylinder extends into the interior of the box body and is connected to a mounting plate. The lower end face of the mounting plate is rotatably connected to a connecting column via a bearing seat. One end of the connecting column extends out of the bearing seat and is provided with a first transmission gear. The upper end face of the mounting plate is provided with a drive motor. The output shaft of the drive motor is provided with a second transmission gear. The first transmission gear and the second transmission gear are adapted to mesh. Several evenly arranged illumination lamps are provided on the connecting column along its length direction.

[0005] Furthermore, multiple connecting posts are provided and are evenly arranged along the width direction of the mounting plate. One end of each connecting post extending out of the bearing seat is provided with a drive sprocket, and the drive sprockets on the multiple connecting posts are connected by a drive chain.

[0006] Furthermore, a placement platform is provided on the lower end face of the box.

[0007] Furthermore, the enclosure is a five-sided enclosed enclosure, with the front side being open and unobstructed.

[0008] Furthermore, the inner walls of the left and right end faces of the housing are provided with guide rails, and the side of the mounting plate is provided with guide rail sliders that are adapted to slide with the guide rails.

[0009] The beneficial effects of this utility model are:

[0010] 1. The telescopic cylinder can move the mounting plate up and down to adjust the vertical position of the illumination lamp. The drive motor can rotate the connecting column and the illumination lamp to adjust the illumination angle of the illumination lamp.

[0011] 2. By setting up multiple connecting columns and illumination lamps on them, the area of ​​light illuminating the PVC sheet can be increased. The entire PVC sheet can be illuminated without moving it, thus improving inspection efficiency. Attached Figure Description

[0012] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of the invention.

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a formal sectional view of the present invention;

[0015] Figure 2 This is a top sectional view of the present invention;

[0016] Figure 3 This is a top sectional view of the box.

[0017] In the picture

[0018] 1. Housing; 2. Telescopic cylinder; 3. Mounting plate; 4. Bearing seat; 5. Connecting column; 6. First transmission gear; 7. Drive motor; 8. Second transmission gear; 9. Illumination lamp; 10. Transmission sprocket; 11. Transmission chain; 12. Placement platform; 13. Guide rail; 14. Guide rail slider; 15. Movable door; 16. Observation port. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0020] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0021] refer to Figure 1 and Figure 2 As shown, one embodiment of this utility model is as follows:

[0022] A visual colorimetric box for PVC sheets includes a box body 1, which is a five-sided enclosed box body. The front side is open and unobstructed, while the other five sides—the upper, lower, left, right, and rear sides—are closed to form cavities, providing space for observation and installation. A telescopic cylinder 2 is installed on the outer wall of the upper side of the box body 1. The telescopic cylinder 2 can be pneumatic or electric, preferably an electric telescopic cylinder due to its smaller space requirement. The telescopic cylinder 2 is fixed to the upper side of the box body 1 by bolts. The telescopic end of the telescopic cylinder 2 extends into the interior of the box body 1, i.e., into the cavity. A mounting plate 3 is fixedly connected to the telescopic end by bolts. The mounting plate 3 is a rectangular plate, and the telescopic end is connected to the center of the mounting plate 3. When the telescopic end of the telescopic cylinder 2 moves up and down, the center of the mounting plate 3 ensures balanced force distribution.

[0023] In this invention, a connecting column 5 is rotatably connected to the lower end face of the mounting plate 3 via a bearing seat 4. Specifically, symmetrical bearing seats 4 are provided at both ends of the lower end face of the mounting plate 3. The two ends of the connecting column 5 are respectively connected to the two bearing seats 4 one-to-one. One end of the connecting column 5 extends out of the bearing seat 4 and is provided with a first transmission gear 6. A drive motor 7 is provided on the upper end face of the mounting plate 3. The drive motor 7 can use existing drive devices such as servo motors. The output shaft of the drive motor 7 is provided with a second transmission gear 8. The first transmission gear 6 and the second transmission gear 8 are adapted to mesh. Several evenly arranged illumination lamps 9 are provided on the connecting column 5 along its length. The drive motor 7 drives the connecting column 5 to rotate, thereby driving the illumination lamps 9 to rotate, thus controlling the illumination angle of the illumination lamps 9.

[0024] In this invention, multiple connecting posts 5 are provided and evenly arranged along the width direction of the mounting plate 3. Because the PVC sheet has a relatively large area, when inspecting the color dispersion of a black PVC sheet, the area illuminated by the illumination lamp 9 on a single connecting post 5 is small, resulting in low inspection efficiency. Furthermore, since the mounting plate 3 cannot move back and forth, the inspection efficiency is further reduced by moving the PVC sheet to coordinate with the illumination lamp. By providing multiple connecting posts 5 and their illumination lamps 9, the area illuminated on the PVC sheet can be increased, allowing the entire PVC sheet to be illuminated without moving it, thus improving inspection efficiency.

[0025] Furthermore, to ensure consistent inspection results, a transmission sprocket 10 is provided at one end of the connecting column 5 extending from the bearing seat 4. The transmission sprockets 10 on multiple connecting columns 5 are connected by a transmission chain 11. The transmission sprocket 10 and transmission chain 11 are existing technologies and can be directly installed onto the connecting column 5. When one connecting column 5 rotates, the transmission sprocket 10 and transmission chain 11 drive multiple connecting columns 5 to rotate synchronously, thereby allowing the illumination lamp 9 to rotate at the same angle, ensuring that the light from the illumination lamp 9 illuminates the entire PVC sheet at the same angle, thus ensuring consistent inspection conditions. It should be noted that among the multiple connecting columns 5, only one connecting column 5 is equipped with a first transmission gear 6 that meshes with the second transmission gear 8 on the drive motor 7. By using a single drive motor 7 to drive the rotation of all connecting columns 5, both cost savings and consistent rotation of the connecting columns 5 are ensured.

[0026] The illumination lamp 9 can be an existing integrated LED lamp with a built-in battery, which can be fixedly connected to the connecting column 5 by bolts, adhesive, or other methods. When the connecting column 5 rotates, the angle of rotation of the connecting column 5 towards the front or rear of the housing with its axis as the center does not exceed 90°. That is, when the illumination lamp 9 is in a vertical illumination state, the angle of rotation forward is less than 90° and the angle of rotation backward is less than 90°. This satisfies the requirements for changes in illumination angle while preventing the illumination lamp 9 from being damaged by collision due to excessive rotation.

[0027] In this utility model, a placement platform 12 is provided on the lower end face of the box body 1. The placement platform 12 is used to place PVC sheets. The placement platform 12 is located directly below the mounting plate 3. The shape and size of the upper end face of the placement platform 12 are smaller than the shape and size of the mounting plate 3, so that the vertical light and the oblique light of the illumination lamp 9 can illuminate the entire placement platform 12.

[0028] In this invention, since the mounting plate 3 is connected to its center point only by a single telescopic cylinder 2, to prevent the left and right end faces of the mounting plate 3 from shifting when moving up and down, guide rails 13 are provided on the inner walls of the left and right end faces of the housing 1, and guide rail sliders 14 are provided on the sides of the mounting plate 3 to slide and adapt to the guide rails 13. The guide rails 13 and guide rail sliders 14 are existing technologies. The guide rails 13 can be fixedly installed on the housing 1 by bolts or welding, and the guide rail sliders can be fixedly installed on the left and right sides of the mounting plate 3 by bolts or welding. The guide rails 13 and guide rail sliders 14 provide guidance and support for the mounting plate 3 when it slides up and down, preventing the mounting plate 3 from shifting during movement and ensuring the stability of the mounting plate 3 during movement.

[0029] In another embodiment, such as Figure 3 As shown, to avoid the influence of external light sources on observation, a movable door 15 is hinged to the front end of the housing 1. The movable door 15 has an observation opening 16. During observation, the observer's eye is directly facing the observation opening 16. The movable door 15 and the observer themselves can block external light sources, preventing interference. It should be noted that the movable door 15 is equipped with a lock, which can be used to open and close the movable door 15.

[0030] The following points need to be explained:

[0031] (1) Unless otherwise defined, the same reference numerals in the embodiments and drawings of this disclosure have the same meaning.

[0032] (2) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0033] (3) For clarity, components or areas are enlarged in the drawings used to describe embodiments of the present disclosure. It will be understood that when an element is referred to as being “above” or “below” another element, the element may be “directly” located “above” or “below” the other element, or there may be an intermediate element.

[0034] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A visual colorimeter for PVC sheets, characterized in that: The device includes a housing (1), and a telescopic cylinder (2) is provided on the upper outer wall of the housing (1). The telescopic end of the telescopic cylinder (2) extends into the interior of the housing (1), and the telescopic end is connected to a mounting plate (3). The lower end face of the mounting plate (3) is rotatably connected to a connecting column (5) through a bearing seat (4). One end of the connecting column (5) extends out of the bearing seat (4) and is provided with a first transmission gear (6). The upper end face of the mounting plate (3) is provided with a drive motor (7). The output shaft of the drive motor (7) is provided with a second transmission gear (8). The first transmission gear (6) and the second transmission gear (8) are adapted to mesh. Several evenly arranged illumination lamps (9) are provided on the connecting column (5) along its length direction.

2. The visual colorimetric box for PVC sheets according to claim 1, characterized in that: The connecting posts (5) are provided in multiple ways and are evenly arranged along the width direction of the mounting plate (3). One end of the connecting post (5) extending out of the bearing seat (4) is provided with a transmission sprocket (10). The transmission sprockets (10) on the multiple connecting posts (5) are connected to each other by a transmission chain (11).

3. A visual colorimetric box for PVC sheets according to claim 2, characterized in that: The lower end face of the box (1) is provided with a placement platform (12).

4. A visual colorimetric box for PVC sheets according to claim 3, characterized in that: The box (1) is a five-sided enclosed box, with the front side being open and unobstructed.

5. A visual colorimetric box for PVC sheets according to claim 4, characterized in that: The inner walls of the left and right end faces of the housing (1) are provided with guide rails (13), and the side of the mounting plate (3) is provided with guide rail sliders (14) that are slidably adapted to the guide rails (13).

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