Prepreg cutting device

Abstract

The utility model provides a prepreg cutting device, and aims to solve the technical problem that an existing cutting device easily causes deformation or fragmentation of a cut edge of a prepreg. According to the technical scheme, the prepreg cutting device comprises a feeding mechanism, a limiting mechanism, a cutting mechanism and a discharging mechanism which are sequentially arranged from left to right; the limiting mechanism comprises an upper horizontal plate and a lower horizontal plate; a gap forming a limiting channel is formed between the upper horizontal plate and the lower horizontal plate; the cutting mechanism comprises a cutter and a power source for driving the cutter to move up and down; the cutting edge of the cutter faces upwards; a cutting edge of the cutter extends in the front-back direction and inclines upwards from front to back. The cutting edge of the cutter inclines upwards in the length direction, linear cutting is changed into continuous point cutting, the phenomenon that the cutter exerts force on the whole width direction of the prepreg at the same time can be avoided, and therefore deformation or fragmentation of the cut edge of the prepreg is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-cured sheet production and processing equipment, in particular to a semi-cured sheet cutting device. Background Art

[0002] Semi-cured sheets are one of the main materials for producing multi-layer boards; they are mainly composed of resin and reinforcing materials, and the reinforcing materials are divided into several types such as fiberglass cloth, paper base, and composite materials. Among them, fiberglass cloth is mostly used as the reinforcing material for semi-cured sheets used to make printed circuit boards.

[0003] When manufacturing semi-cured sheets, usually the unwound fiberglass cloth is first impregnated with resin glue, then heat-treated, and finally cut after being initially cooled and cured. The width of semi-cured sheets is relatively large and has a certain thickness; while the existing semi-cured sheet cutting devices often complete the whole-sheet cutting of semi-cured sheets instantaneously; this easily causes deformation or fragmentation of the cut edges of semi-cured sheets, thus having an adverse impact on the quality of semi-cured sheets. Summary of the Invention

[0004] The purpose of the utility model is to provide a semi-cured sheet cutting device, in which the cutting edge of the cutting tool is inclined upward along the length direction, changing the wire cutting into continuous point cutting, which can avoid the cutting tool applying force simultaneously in the entire width direction of the semi-cured sheet, thereby preventing deformation or fragmentation of the cut edges of the semi-cured sheet.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The semi-cured sheet cutting device includes: a feeding mechanism for conveying semi-cured sheets from left to right, a limiting mechanism arranged at the right end of the feeding mechanism, a cutting mechanism arranged at the right end of the limiting mechanism, and a discharging mechanism arranged at the right end of the cutting mechanism for conveying semi-cured sheets from left to right; wherein, the limiting mechanism includes: an upper horizontal plate and a lower horizontal plate; there is a gap between the upper horizontal plate and the lower horizontal plate to form a limiting channel; the cutting mechanism includes: a cutting tool and a power source for driving the cutting tool to move up and down; the cutting edge of the cutting tool faces upward; the cutting edge of the cutting tool extends in the front-rear direction and is inclined upward from front to back; the right edges of the upper horizontal plate and the lower horizontal plate are flush with the left side surface of the cutting tool.

[0007] Optionally, the cutting mechanism further includes: a tool holder; the tool holder includes: a left vertical plate, a right vertical plate, and a bottom plate connecting the left vertical plate and the right vertical plate; there is a gap between the left vertical plate and the right vertical plate to form a tool slot; the cutting tool is installed in the tool slot; the power source drives the tool holder to move up and down, driving the cutting tool to move up and down.

[0008] Optionally, the left vertical plate, the right vertical plate, and the cutting knife are correspondingly provided with positioning holes penetrating from left to right in the front section, and are adapted to positioning bolts; the right vertical plate is provided with a plurality of threaded holes penetrating from left to right along the length direction, and is adapted to locking bolts.

[0009] Optionally, the power source is set as a linear cylinder or a linear oil cylinder.

[0010] Optionally, rollers are respectively installed at the front and rear ends of the tool holder, and the rollers are limited in a guide groove extending in the up and down direction.

[0011] Optionally, the upper surface of the upper horizontal plate is provided with criss-cross first reinforcing ribs; the lower surface of the lower horizontal plate is provided with criss-cross second reinforcing ribs.

[0012] Optionally, the incoming material mechanism includes: a first conveyor roller arranged in the left-right direction, a first motor for driving the first conveyor roller to rotate, and a first conveyor belt installed on the first conveyor roller.

[0013] Optionally, the discharging mechanism includes: a second conveyor roller arranged in the left-right direction, a second motor for driving the second conveyor roller to rotate, and a second conveyor belt installed on the second conveyor roller.

[0014] Optionally, the upper surface of the second conveyor belt is lower than the upper surface of the first conveyor belt; a discharging plate is arranged between the cutting knife and the second conveyor belt; the discharging plate is inclined downward from left to right, and its left end is lower than the upper surface of the first conveyor belt and its right end is higher than the upper surface of the second conveyor belt.

[0015] The working principle of the present utility model is as follows: The incoming material mechanism conveys the preliminarily cooled and solidified semi-cured sheet from left to right, so that the semi-cured sheet passes through the cutting mechanism and exits from the right end of the limiting channel. The power source is used to drive the cutting knife to move upward; the part of the semi-cured sheet exiting from the right end of the limiting channel can be cut under the cooperation of the cutting knife and the upper horizontal plate; the cut semi-cured sheet will be conveyed to the stacking area by the discharging mechanism to the right. Among them, the cutting edge of the cutting knife faces upward and is inclined upward from front to back; at any point in time, only one point of the cutting edge of the cutting knife contacts the semi-cured sheet, and the semi-cured sheet is cut in cooperation with the limitation of the upper horizontal plate; that is: the cutting knife starts from the edge of the semi-cured sheet and cuts the semi-cured sheet in a continuous point cutting manner.

[0016] It can be seen from this that the beneficial effects of the present utility model are: the cutting edge of the cutting knife is inclined upward along the length direction, changing the wire cutting to continuous point cutting, which can avoid the cutting knife applying force simultaneously on the entire width direction of the semi-cured sheet, thereby preventing the cut edge of the semi-cured sheet from deforming or cracking. In addition, cutting in the way that the cutting edge faces upward can avoid the right end of the cut semi-cured sheet from tilting due to the left end being pressed down, thereby preventing the cut semi-cured sheet from deviating front and back and separating from the discharging mechanism. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the present utility model;

[0019] Figure 2 It is a front view of the present utility model;

[0020] Figure 3 It is a schematic structural diagram of the cutting mechanism;

[0021] Figure 4 It is an assembly schematic diagram of the cutting mechanism.

[0022] Reference numerals: 1, incoming material mechanism; 2, limiting mechanism; 3, cutting mechanism; 4, discharging mechanism; 5, upper horizontal plate; 6, lower horizontal plate; 7, cutting knife; 8, power source; 9, tool holder; 10, left vertical plate; 11, right vertical plate; 12, positioning bolt; 13, locking bolt; 14, roller; 15, first reinforcing rib; 16, first conveying roller; 17, first conveyor belt; 18, second conveying roller; 19, second conveyor belt; 20, discharging plate; 21, guiding groove. Specific embodiments

[0023] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", etc. is based on the Figure 1 orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 thus cannot be understood as a limitation to the present utility model.

[0025] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0026] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present utility model.

[0028] The following will Figure 1 ~ Figure 4 describe the embodiments of the present utility model in detail with reference to the

[0029] An embodiment of the present utility model provides a semi-cured sheet cutting device. The cutting device includes: a feeding mechanism 1 for conveying the semi-cured sheet from left to right, a limiting mechanism 2 provided at the right end of the feeding mechanism 1, a cutting mechanism 3 provided at the right end of the limiting mechanism 2, and a discharging mechanism 4 provided at the right end of the cutting mechanism 3 for conveying the semi-cured sheet from left to right. The limiting mechanism 2 includes: an upper horizontal plate 5 and a lower horizontal plate 6; there is a gap forming a limiting channel between the upper horizontal plate 5 and the lower horizontal plate 6. It should be understood that the gap between the upper horizontal plate 5 and the lower horizontal plate 6 is slightly larger than the thickness of the semi-cured sheet. The cutting mechanism 3 includes: a cutting knife 7 and a power source 8 for driving the cutting knife 7 to move up and down. The cutting edge of the cutting knife 7 faces upward; the cutting edge of the cutting knife 7 extends in the front-rear direction and slopes upward from front to back. The right edges of the upper horizontal plate 5 and the lower horizontal plate 6 are flush with the left side surface of the cutting knife 7.

[0030] The specific implementation manner of the present utility model is described as follows: Let the incoming material mechanism 1 convey the preliminarily cooled and solidified prepreg from left to right, so that the prepreg passes through the cutting mechanism 3 and exits from the right end of the limiting channel. Let the power source 8 drive the cutter 7 to move upward; the part of the prepreg that exits from the right end of the limiting channel can be cut under the cooperation of the cutter 7 and the upper horizontal plate 5; the cut prepreg will be conveyed to the stacking area by the unloading mechanism 4 to the right. Among them, the cutting edge of the cutter 7 faces upward and slopes upward from front to back; at any point in time, only one point of the cutting edge of the cutter 7 contacts the prepreg, and the prepreg is cut in cooperation with the limitation of the upper horizontal plate 5; that is: the cutter 7 starts from the edge of the prepreg and cuts the prepreg in a continuous point cutting manner. The cutting edge of the cutter 7 of the present utility model slopes upward along the length direction, changing the wire cutting to continuous point cutting, which can avoid the cutter 7 applying force simultaneously in the entire width direction of the prepreg, thereby preventing the cut edge of the prepreg from deforming or cracking. In addition, cutting in the way that the cutting edge faces upward can avoid the right end of the cut prepreg from tilting due to the left end being pressed down, thereby preventing the cut prepreg from detaching from the unloading mechanism 4 due to front-back offset.

[0031] Further, the cutting mechanism 3 further includes: a tool holder 9; the tool holder 9 includes: a left vertical plate 10, a right vertical plate 11, and a bottom plate connecting the left vertical plate 10 and the right vertical plate 11; there is a gap between the left vertical plate 10 and the right vertical plate 11 that forms a tool groove; the cutter 7 is installed in the tool groove; the power source 8 drives the cutter 7 to move up and down by driving the tool holder 9 to move up and down.

[0032] Further, the left vertical plate 10, the right vertical plate 11, and the cutter 7 are correspondingly provided with positioning holes penetrating left and right in the front section, and are adapted to positioning bolts 12; the right vertical plate 11 is provided with a plurality of threaded holes penetrating left and right along the length direction, and is adapted to locking bolts 13. It should be understood that the cutter 7 is hinged to the left vertical plate 10 and the right vertical plate 11 through the positioning bolts 12; loosen the locking bolts 13 and move the rear end of the cutter 7 upward or downward, and the inclination angle of the cutting edge of the cutter 7 can be adjusted; after adjusting the inclination angle of the cutting edge of the cutter 7, tighten the locking bolts 13 again, and the locking bolts 13 can re-tighten the cutter 7.

[0033] Further, the power source 8 is set as a linear cylinder or a linear oil cylinder.

[0034] Further, rollers 14 are respectively installed at the front and rear ends of the tool holder 9, and the rollers 14 are limited in a guide groove 21 extending in the up and down direction. It should be understood that the guide groove 21 can play a role in limiting and guiding the rollers 14 and the tool holder 9, thereby preventing the tool holder 9 from shifting.

[0035] Further, the upper surface of the upper horizontal plate 5 is provided with first reinforcing ribs 15 arranged in a crisscross pattern; the lower surface of the lower horizontal plate 6 is provided with second reinforcing ribs arranged in a crisscross pattern.

[0036] Further, the incoming material mechanism 1 includes: first conveying rollers 16 arranged in the left-right direction, a first motor for driving the rotation of the first conveying rollers 16, and a first conveyor belt 17 mounted on the first conveying rollers 16. It should be understood that additionally mounting the first conveyor belt 17 on the first conveying rollers 16 can prevent the semi-cured sheet from being obliquely inserted under the first conveying rollers 16 due to the action of gravity; in this way, the density of the first conveying rollers 16 can be reduced and the number of the first conveying rollers 16 can be decreased.

[0037] Further, the discharging mechanism 4 includes: second conveying rollers 18 arranged in the left-right direction, a second motor for driving the rotation of the second conveying rollers 18, and a second conveyor belt 19 mounted on the second conveying rollers 18.

[0038] Further, the upper surface of the second conveyor belt 19 is lower than the upper surface of the first conveyor belt 17; a discharging plate 20 is provided between the cutting knife 7 and the second conveyor belt 19; the discharging plate 20 slopes downward from left to right, with its left end lower than the upper surface of the first conveyor belt 17 and its right end higher than the upper surface of the second conveyor belt 19. It should be understood that the semi-cured sheet passing through the right end of the limiting channel will fall on the discharging plate 20 and slide along the discharging plate 20 onto the discharging mechanism 4; the left section of the cut semi-cured sheet is supported by the discharging plate 20. In this way, sufficient space can be left between the incoming material mechanism 1 and the discharging mechanism 4 for installing the cutting mechanism 3.

[0039] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that without departing from the principle and essence of the present invention, various changes or modifications can be made to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A prepreg cutting device, characterized in that: include: A material feeding mechanism (1) for conveying the prepreg from left to right; and a limiting mechanism (2) provided at the right end of the material incoming mechanism (1); and a cutting mechanism (3) disposed at the right end of the limiting mechanism (2); and A discharge mechanism (4) disposed at the right end of the cutting mechanism (3) and conveying the prepreg from left to right; in, The limiting mechanism (2) comprises: an upper horizontal plate (5) and a lower horizontal plate (6); a gap forming a limiting channel is provided between the upper horizontal plate (5) and the lower horizontal plate (6); The cutting mechanism (3) comprises: a cutting knife (7) and a power source (8) for driving the cutting knife (7) to move up and down; The blade of the cutter (7) faces upward; the blade of the cutter (7) extends in the front-to-back direction and is inclined upward from front to back; The right edge of the upper horizontal plate (5) and the right edge of the lower horizontal plate (6) are flush with the left side of the cutter (7).

2. The prepreg cutting device according to claim 1, characterized in that: The cutting mechanism (3) further comprises: a knife seat (9); The knife seat (9) comprises: a left vertical plate (10), a right vertical plate (11), and a bottom plate connecting the left vertical plate (10) and the right vertical plate (11); a gap forming a knife groove is provided between the left vertical plate (10) and the right vertical plate (11); The cutter (7) is mounted on the cutter groove; the power source (8) drives the cutter seat (9) to move up and down, thereby driving the cutter (7) to move up and down.

3. The prepreg cutting device according to claim 2, characterized in that: The left vertical plate (10), the right vertical plate (11) and the cutter (7) are provided with corresponding positioning holes penetrating left and right at the front section, and are adapted to have positioning bolts (12); The right vertical plate (11) is provided with a plurality of threaded holes extending left and right along the length direction and adapted to receive locking bolts (13).

4. The prepreg cutting device according to claim 1, characterized in that: The power source (8) is configured as a linear air cylinder or a linear oil cylinder.

5. The prepreg cutting device according to claim 2, characterized in that: Rollers (14) are respectively installed at the front and rear ends of the knife seat (9), and the rollers (14) are limited in a guide groove (21) extending in the up-down direction.

6. The prepreg cutting device according to claim 1, characterized in that: The upper surface of the upper horizontal plate (5) is provided with first reinforcing ribs (15) arranged in a crisscross pattern; and the lower surface of the lower horizontal plate (6) is provided with second reinforcing ribs arranged in a crisscross pattern.

7. The prepreg cutting device according to any one of claims 1 to 6, characterized in that: The material incoming mechanism (1) comprises: first conveying rollers (16) arranged in the left-right direction, a first motor driving the first conveying rollers (16) to rotate, and a first conveying belt (17) mounted on the first conveying rollers (16).

8. The prepreg cutting device according to claim 7, characterized in that: The unloading mechanism (4) comprises: second conveying rollers (18) arranged in the left-right direction, a second motor driving the second conveying rollers (18) to rotate, and a second conveying belt (19) mounted on the second conveying rollers (18).

9. The prepreg cutting device according to claim 8, characterized in that: The upper surface of the second conveyor belt (19) is lower than the upper surface of the first conveyor belt (17); A discharge plate (20) is provided between the cutter (7) and the second conveyor belt (19); The discharge plate (20) is inclined downward from left to right, with its left end being lower than the upper surface of the first conveyor belt (17) and its right end being higher than the upper surface of the second conveyor belt (19).

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