A paper roll quick separation and cutting mechanism

Abstract

The present invention provides a paper roll quick separation and cutting mechanism, comprising: a frame; a paper roll, rotatably mounted on the frame, on which a roll of paper is rolled; a mobile platform, located below the paper roll; connected to one end of the roll of paper, horizontally slidably mounted on the frame; a stacking mechanism, mounted on the mobile platform, pressing on the roll of paper; wherein, when the mobile platform reciprocates and slides to both sides of the paper roll, the stacking mechanism presses the roll of paper in turn, and the roll of paper is folded in a Z shape. The present invention stacks the roll of paper on the mobile platform in a Z shape through the stacking mechanism, and subsequent cutting can obtain a large number of rolls of paper of the same size at one time; the time spent on the subsequent grinding process is reduced, and the efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board production equipment, and in particular to a paper roll rapid separation and cutting mechanism. Background Art

[0002] In PCB manufacturing, paper (usually kraft paper) lamination is part of its processing technology. The existing paper roll is formed by rolling a whole strip of paper or film onto a paper tube. When in use, the roll is pulled out of the paper tube and cut into a specific length of paper as needed. However, most of the above processes are completed manually, and the paper is pulled out of the paper tube manually, the length is measured, and then cut with a knife, one sheet at a time, which is labor-intensive, low in production efficiency, and high in production cost.

[0003] Patent CN201920738101.7 discloses a device for quickly separating and cutting paper rolls. The paper on the paper roll is pulled out and cut after winding. A large number of paper pieces can be cut out at one time. However, the sizes of the cut paper are different. The reason is that the size of the outer circle of paper wound on the device after cutting will be larger than the size of the inner circle of paper. When the PCB board is processed later, a lot of extra time will be wasted for polishing, which reduces production efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a paper roll quick separation and cutting mechanism to improve production efficiency and reduce the polishing time of subsequent production of PCB boards.

[0005] The present invention provides a paper roll quick separation and cutting mechanism, comprising:

[0006] frame;

[0007] A paper roll is rotatably mounted on a frame, and a roll of paper is wound thereon;

[0008] The mobile platform is located below the paper roll; it is connected to one end of the paper roll and is horizontally slidably mounted on the frame;

[0009] The stacking mechanism is mounted on the mobile platform and pressed on the paper roll;

[0010] When the moving platform slides back and forth to the two sides of the paper roll, the stacking mechanism presses the paper roll in sequence, and the paper roll is folded in a Z shape.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] In the technology of the present invention, the roll paper is stacked in a Z shape on the mobile platform through a stacking mechanism, and a large number of roll paper of the same size can be obtained at one time through subsequent cutting; the time spent on the subsequent grinding process is reduced, and the efficiency is improved.

[0013] Preferably, the stacking mechanism comprises pressing members arranged symmetrically to each other;

[0014] The pressing member comprises:

[0015] There are two rotating arms, and the ends of the two rotating arms are rotatably mounted on both sides of the mobile platform respectively;

[0016] A control assembly is provided at one end of each rotating arm away from the moving platform;

[0017] The pressing sheets are stacked and arranged in multiple pieces, and the two ends of the pressing sheets are detachably connected to the control components on both sides respectively;

[0018] The receiving components are symmetrically arranged in two groups, both of which are installed on the mobile platform to receive the pressing pieces in batches;

[0019] When the rotating arm rotates, the control component rotates close to the receiving component and separates a single pressing sheet to connect with the receiving component.

[0020] Preferably, the control component comprises:

[0021] A control housing, open and connected to the rotating arm;

[0022] A guide portion, mounted in the control housing;

[0023] A control motor is installed in the control housing;

[0024] A control gear is coaxially connected to the rotating shaft of the control motor;

[0025] Among them, a guide through hole is opened at the end of each pressing piece corresponding to the guide part; the guide through hole and the guide part are clearance-matched; a control spring is arranged on the outer sleeve of the guide part; the two ends of the control spring are respectively abutted against the bottom of the control shell and the stacked pressing pieces; the ends of the pressing pieces are connected with gear teeth; the control gear is meshed with the gear teeth on the stacked pressing pieces.

[0026] Preferably, the receiving assembly comprises:

[0027] The receiving part is arranged on the mobile platform corresponding to the guiding part;

[0028] A receiving platform, on which a receiving through hole corresponding to the receiving portion is provided to match the receiving portion with a clearance;

[0029] The receiving spring is sleeved on the receiving part, and its two ends are respectively connected to the moving platform and the receiving platform;

[0030] Wherein, a check structure is provided at one end of the receiving part away from the moving platform.

[0031] Preferably, the receiving portion includes two arc-shaped rods arranged concentrically; one end of the arc-shaped rod is connected to the moving platform;

[0032] There are two receiving through holes on the receiving platform corresponding to the arc-shaped rods;

[0033] The check structure includes a check wedge block and a check spring; a square hole is provided on the side of one end of the arc rod away from the moving platform; the check wedge block is slidably inserted in the square hole; and the two ends of the check spring are respectively connected to the check wedge block and the bottom of the square hole.

[0034] Preferably, the guide portion comprises two arc-shaped guide tubes arranged concentrically; two guide through holes are provided on each end of the pressing piece corresponding to the arc-shaped guide tubes; and the inner wall of the arc-shaped guide tube is gap-matched with the arc-shaped rod.

[0035] Preferably, it also includes two driving rods and two driving motors installed on the mobile platform; two parallel rotating holes are opened on the mobile platform; the driving rod passes through the rotating holes; the two ends of the driving rod are respectively connected to the end of a rotating arm; each driving rod is coaxially connected to the rotating shaft of a driving motor.

[0036] Preferably, protrusions are provided on both sides of the end of the pressing piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0038] Figure 1 It is a structural schematic diagram of a paper roll quick separation and cutting mechanism in one embodiment of the present invention;

[0039] Figure 2 for Figure 1 A front view of a paper roll quick separation and cutting mechanism;

[0040] Figure 3 for Figure 1 A top view of a moving platform of a paper roll quick separation and cutting mechanism;

[0041] Figure 4 for Figure 2 A left view of a control component at position A of a paper roll quick separation and cutting mechanism;

[0042] Figure 5 for Figure 1 A schematic structural diagram of a control component and a receiving component of a paper roll quick separation and cutting mechanism;

[0043] Figure 6 for Figure 1A structural schematic diagram of a backstop structure of a paper roll quick separation and cutting mechanism;

[0044] Figure 7 for Figure 1 A schematic diagram of the cooperation between the oblique piece and the horizontal piece of a paper roll quick separation and cutting mechanism.

[0045] Reference numerals:

[0046] 1. Frame;

[0047] 2. Paper roll;

[0048] 3. Mobile platform;

[0049] 4. Stacking mechanism; 41. Pressing member; 411. Rotating arm; 412. Pressing sheet; 412a. Gear; 412b. Guide through hole; 412c. Oblique sheet; 412d. Transverse sheet; 413. Control assembly; 413a. Control housing; 413b. Guide portion; 413c. Control motor; 413d. Control gear; 413e. Control spring; 413f. Arc guide tube; 414. Support assembly; 414a. Support portion; 414b. Support platform; 414c. Support spring; 414d. Check structure; 414e. Check wedge block; 414f. Check spring; 414g. Arc rod;

[0050] 5. driving motor; 51. driving rod. DETAILED DESCRIPTION

[0051] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0052] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0053] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0055] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] See also Figures 1 to 4 , a paper roll 2 quick separation and cutting mechanism, comprising:

[0058] Rack 1;

[0059] A paper roll 2 is rotatably mounted on the frame 1, and a roll of paper is wound thereon;

[0060] The movable platform 3 is located below the paper roll 2, connected to one end of the paper roll, and horizontally slidably mounted on the frame 1;

[0061] The stacking mechanism 4 is mounted on the moving platform 3 and pressed on the paper roll;

[0062] When the moving platform 3 slides back and forth to the two sides of the paper roll 2, the stacking mechanism 4 presses the paper roll in sequence, and the paper roll is folded in a Z shape.

[0063] In order to solve the problem of size differences after the paper roll is cut, the device folds the paper roll in a Z shape and finally cuts it from the middle to obtain multiple paper rolls of the same size. In order to achieve the Z-shaped folding, the end of the paper roll needs to be connected to the mobile platform 3. When the mobile platform 3 slides to the left side of the paper roll 2, the stacking mechanism 4 is used to press the paper roll on the right end of the mobile platform 3; then the mobile platform 3 is moved to the right, and the paper roll released from the paper roll 2 is bent with the stacking mechanism 4 and the pressing point of the paper roll as the center; when the mobile platform 3 moves to the right side of the paper roll 2, the stacking structure presses the paper roll above the left end of the mobile platform 3 onto the mobile platform 3, and repeats this process to stack the paper roll on the mobile platform 3 in a Z shape.

[0064] Furthermore, the stacking mechanism 4 includes pressing components 41 that are symmetrically arranged. The pressing components 41 include:

[0065] There are two rotating arms 411, and the ends of the two rotating arms 411 are rotatably mounted on both sides of the mobile platform 3;

[0066] A control assembly 413 is provided at one end of each rotating arm 411 away from the mobile platform 3;

[0067] The pressing sheet 412 is stacked in multiple pieces, and both ends thereof are detachably connected to the control components 413 on both sides;

[0068] The receiving components 414 are symmetrically arranged in two groups, both mounted on the mobile platform 3, and are used to receive the pressing pieces 412 in batches;

[0069] When the rotating arm 411 rotates, the control component 413 rotates close to the receiving component 414 and separates the single pressing piece 412 to connect with the receiving component 414 .

[0070] The two pressing members 41 have four rotating arms 411, two groups of stacked pressing sheets 412, and four receiving components 414; the device relies on the stacking mechanism 4 to press the roll of paper, and uses the movement of the mobile platform 3 to achieve the posture control of the roll of paper, so the mobile platform 3 is often offset far relative to the paper roll 2. The pressing sheet 412 is connected to the rotating arm 411 in this way, so that the stacked pressing sheet 412 can drive the rotating arm 411 to rotate when it is needed to realize the pressing function, and then retract the stacked pressing sheet 412, so that the stacked pressing sheet 412 and the roll of paper moving above the mobile platform 3 can be obtained. The pressing sheet 412 and the roll of paper generally have a pressing effect, and there is no relative friction, which can prevent the roll of paper from breaking. The left pressing member 41 and the right pressing member 41 have the same structure and are arranged in opposite directions, that is, symmetrically. The control component 413 can control the pressing sheet 412 to be separated into individual pieces. The Z-shaped stacked structure requires a pressing sheet 412 at each turning point.

[0071] Furthermore, the control component 413 includes:

[0072] The control housing 413a is open and connected to the rotating arm 411;

[0073] The guide portion 413b is installed in the control housing 413a;

[0074] A control motor 413c is installed in the control housing 413a;

[0075] The control gear 413d is coaxially connected to the rotating shaft of the control motor 413c;

[0076] Among them, a guide through hole 412b is opened at the end of each pressing piece 412 corresponding to the guide part 413b; the guide through hole 412b is clearance-matched with the guide part 413b; a control spring 413e is arranged on the outer sleeve of the guide part 413b; the two ends of the control spring 413e are respectively abutted against the bottom of the control shell 413a and the stacked pressing pieces 412; the ends of the pressing pieces 412 are connected with gear teeth 412a; the control gear 413d is meshed with the gear teeth 412a on the stacked pressing pieces 412.

[0077] The control motor 413c is a self-locking motor. When the pressing piece 412 needs to be disengaged, the control motor 413c drives the control gear 413d to rotate, and the pressing piece 412 meshed with the control gear 413d is driven by the control gear 413d to slide out along the guide portion 413b. The control spring 413e ensures that the stacked pressing pieces 412 are always meshed with the control gear 413d.

[0078] Furthermore, the receiving component 414 includes:

[0079] The receiving portion 414a is arranged on the mobile platform 3 corresponding to the guiding portion 413b;

[0080] The receiving platform 414b has a receiving through hole corresponding to the receiving portion 414a and having a clearance fit with the receiving portion 414a;

[0081] The receiving spring 414c is sleeved on the receiving portion 414a, and its two ends are respectively connected to the moving platform 3 and the receiving platform 414b;

[0082] A check structure 414d is disposed at one end of the receiving portion 414a away from the moving platform 3 .

[0083] When the rotating arm 411 rotates, the guide part 413b of the control component 413 abuts against the receiving part 414a of the receiving component 414, and the control gear 413d rotates to drive the pressing plate 412 to disengage. After that, the pressing plate 412 will fall onto the receiving platform 414b along the receiving part 414a through the check structure 414d, and will be restricted by the check structure 414d and cannot be disengaged, thereby forming a pressing effect on the roll of paper.

[0084] Furthermore, the receiving portion 414 a includes two arc-shaped rods 414 g arranged concentrically; one end of the arc-shaped rod 414 g is connected to the moving platform 3 .

[0085] There are two receiving through holes on the receiving platform 414b corresponding to the arc-shaped rod 414g;

[0086] The check structure 414d includes a check wedge block 414e and a check spring 414f; a square hole is provided on the side of the end of the arc rod 414g away from the moving platform 3; the check wedge block 414e is slidably inserted into the square hole; the two ends of the check spring 414f are respectively connected to the check wedge block 414e and the bottom of the square hole.

[0087] The inclined surface of the check wedge block 414e is upward, and the pressing piece 412 presses the check wedge block 414e back into the placement square hole when passing through the check wedge block 414e, and then the check wedge block 414e pops out, and the pressing piece 412 cannot retreat again.

[0088] Furthermore, the guide portion 413b includes two concentrically arranged arc-shaped guide tubes 413f; two guide through holes 412b are opened on each end of the pressing plate 412 corresponding to the arc-shaped guide tubes 413f; and the inner wall of the arc-shaped guide tube 413f is gap-matched with the arc-shaped rod 414g.

[0089] After the rotating arms 411 in the two pressing members 41 rotate, the stacked pressing sheets 412 can be transported to the receiving components 414 on the opposite sides, and the pressing sheets 412 are pushed out by the rotation of the control gear 413d, and pushed to the receiving components 414 by the control component 413, and the non-return wedge block 414e in the receiving components 414 prevents the pressing sheets 412 from being separated, and then cooperates with the horizontal displacement of the mobile platform 3 to complete the stacking of the paper rolls. After the stacking is completed, the paper rolls are discontinued from the middle and from top to bottom to obtain paper of the same size. Then the rotating arm 411 is driven to approach the receiving assembly 414 on the opposite side, and the arc guide tube 413f is covered on the arc rod 414g. When the arc rod 414g enters the arc guide tube 413f, the check wedge block 414e is compressed; at this time, under the action of the receiving spring 414c, the receiving platform 414b pushes the pressing piece 412 toward the arc guide tube 413f and slides along the arc guide tube 413f (the control gear 413d cooperates to rotate and then receives all the pressing pieces 412, and the control spring 413e is compressed in this process). Similarly, when the control assembly 413 transports the pressing piece 412 to the receiving assembly 414, the arc guide tube 413f can also be used to compress the check wedge block 414e so that the pressing piece 412 can move more smoothly to the receiving platform 414b. Generally speaking, the control gear 413d is still relied on to give the pressing piece 412 the power to move.

[0090] Furthermore, it also includes two driving rods 51 and two driving motors 5 installed on the mobile platform 3; two parallel rotating holes are opened on the mobile platform 3; the driving rod 51 passes through the rotating holes; the two ends of the driving rod 51 are respectively connected to the end of a rotating arm 411; each driving rod 51 is coaxially connected to the rotating shaft of a driving motor 5.

[0091] The driving motor 5 drives the driving rod 51 to rotate so that the two rotating arms 411 connected to the same driving rod 51 rotate simultaneously, thereby moving the stacked pressing sheets 412 .

[0092] Furthermore, bumps are provided on both sides of the end of the pressing piece 412 .

[0093] The presence of the protrusion ensures that there is a gap between adjacent pressing pieces 412. It ensures that when the arc-shaped guide tube 413f is away from the receiving assembly 414, the non-return wedge block 414e has popped out, and the pressing piece 412 already on the receiving assembly 414 will abut against the non-return wedge block 414e. In addition, the mobile platform 3 is slidably mounted on the frame 1, and a through hole can be opened on the mobile platform 3, and a screw rod is provided, which passes through the mobile platform 3 and is threadedly connected to the through hole; the screw rod is externally connected to the rotating shaft of a motor to drive the sliding of the mobile platform 3.

[0094] The pressing piece 412 includes a horizontal piece 412d in the middle and oblique pieces 412c connected to both ends of the horizontal piece 412d. The oblique piece 412c is provided to adapt to the arc motion trajectory of the pressing piece 412. The horizontal piece 412d is provided to ensure that the roll of paper wound on the horizontal piece 412d has only one fold. The mobile platform 3 is also provided with a pressing strip for pressing against the roll of paper. Through holes are provided at both ends of the pressing strip. The pressing strip can be pressed against the mobile platform 3 by passing bolts through the through holes of the pressing strip and then being threadedly connected to the mobile platform 3, so that the end of the initial roll of paper is connected to the mobile platform 3.

[0095] The retraction and release of the paper on the paper roll 2 can be controlled by a motor, and the device can be used for regulation. The moving platform 3 has two sides provided with through grooves for accommodating the pressing sheet 412 .

[0096] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A paper roll quick separation and cutting mechanism, characterized in that: include: frame; A paper roll is rotatably mounted on a frame, and a roll of paper is wound thereon; A mobile platform, located below the paper roll; Connected to one end of the paper roll and installed on the frame in a horizontal sliding manner; The stacking mechanism is mounted on the mobile platform and pressed on the paper roll; When the moving platform slides back and forth to the two sides of the paper roll, the stacking mechanism presses the paper roll in sequence, and the paper roll is folded in a Z shape; The stacking mechanism includes pressing components arranged symmetrically with each other; The pressing member comprises: There are two rotating arms, and the ends of the two rotating arms are rotatably mounted on both sides of the mobile platform respectively; A control assembly is provided at one end of each rotating arm away from the moving platform; The pressing sheets are stacked and arranged in multiple pieces, and the two ends of the pressing sheets are detachably connected to the control components on both sides respectively; The receiving components are symmetrically arranged in two groups, both of which are installed on the mobile platform to receive the pressing pieces in batches; Wherein, when the rotating arm rotates, the control component rotates close to the receiving component and separates a single pressing sheet to connect with the receiving component; The control components include: A control housing, open and connected to the rotating arm; A guide portion, mounted in the control housing; A control motor is installed in the control housing; A control gear is coaxially connected to the rotating shaft of the control motor; Among them, a guide through hole is opened at the end of each pressing piece corresponding to the guide part; the guide through hole and the guide part are clearance-matched; a control spring is arranged on the outer sleeve of the guide part; the two ends of the control spring are respectively abutted against the bottom of the control shell and the stacked pressing pieces; the ends of the pressing pieces are connected with gear teeth; the control gear is meshed with the gear teeth on the stacked pressing pieces.

2. A paper roll quick separation and cutting mechanism as claimed in claim 1, characterized in that: The receiving components include: The receiving part is arranged on the mobile platform corresponding to the guiding part; A receiving platform, on which a receiving through hole corresponding to the receiving portion is provided to match the receiving portion with a clearance; The receiving spring is sleeved on the receiving part, and its two ends are respectively connected to the moving platform and the receiving platform; Wherein, a check structure is provided at one end of the receiving part away from the moving platform.

3. A paper roll quick separation and cutting mechanism as claimed in claim 2, characterized in that: The receiving part includes two arc-shaped rods arranged concentrically; one end of the arc-shaped rod is connected to the moving platform; There are two receiving through holes on the receiving platform corresponding to the arc-shaped rods; The check structure includes a check wedge block and a check spring; a square hole is provided on the side of one end of the arc rod away from the moving platform; the check wedge block is slidably inserted in the square hole; and the two ends of the check spring are respectively connected to the check wedge block and the bottom of the square hole.

4. A paper roll quick separation and cutting mechanism as claimed in claim 3, characterized in that: The guide part comprises two arc-shaped guide tubes arranged concentrically; two guide through holes are opened on each end of the pressing piece corresponding to the arc-shaped guide tubes; and the inner wall of the arc-shaped guide tube is gap-matched with the arc-shaped rod.

5. A paper roll quick separation and cutting mechanism as claimed in claim 4, characterized in that: It also includes two driving rods and two driving motors installed on the mobile platform; the mobile platform is provided with two rotating holes parallel to each other; the driving rod passes through the rotating holes; the two ends of the driving rod are respectively connected to the end of a rotating arm; each driving rod is coaxially connected to the rotating shaft of a driving motor.

6. A paper roll quick separation and cutting mechanism as claimed in claim 5, characterized in that: Both sides of the end of the pressing piece are provided with bulges.

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