Carbon fiber multifilament stretching reinforcing sheet preforming die

Abstract

The utility model relates to the technical field of carbon fiber multifilament stretching reinforcement, in particular to a carbon fiber multifilament stretching reinforcement sheet preforming die which comprises an upper die and a lower die, the two sides of the upper die are respectively and fixedly connected with a first handle, the lower end face of the upper die is fixedly connected with a plurality of sets of bosses, and the bosses are arranged on the lower end face of the upper die. The bosses are linearly distributed on the two sides of the bottom end of the upper die at equal intervals, second handles are fixedly connected to the two sides of the lower die respectively, grooves are formed in the upper end face of the lower die, and the grooves and the bosses are correspondingly arranged. According to the utility model, by using the reinforcing sheet pre-forming mold, the quantity of glue solution smeared when each multifilament sample strip is reinforced can be ensured to be fixed, the operation requirement on personnel is reduced, the test error caused by inconsistent reinforcement is basically eliminated, and the operation is convenient.

Description

Technical Field

[0001] The utility model patent relates to the technical field of carbon fiber multifilament stretch reinforcement, specifically, to a preforming mold for a carbon fiber multifilament stretch reinforcement sheet. Background Art

[0002] At present, the tensile performance of carbon fiber multifilament is mainly enhanced by cutting the multifilament after dipping into a certain length of strips, taking two pieces of kraft paper of a certain size as reinforcement sheets, and sticking them on both sides of the reinforcement plate with tape, with a certain distance between the two pieces of kraft paper, and then using a metal rod to dip the glue and smear it on the position between the two dotted lines of the kraft paper, and then taking two pieces of kraft paper and covering them on the lower kraft paper respectively, and after completion, covering the reinforcement plate with a tetrafluoroethylene isolation film to prevent excess glue from seeping out and causing the kraft paper to stick to each other, and then placing a laminate on the isolation film for reinforcement, and finally putting it in an oven for curing. The multifilament strips strengthened by this method often have uneven glue smearing, which directly affects the tensile performance test results and increases the test error. At the same time, the operation is complicated and requires high personnel; therefore, the present application provides a preforming mold for carbon fiber multifilament tensile reinforcement sheets. Utility Model Content

[0003] The utility model aims to provide a preforming die for a carbon fiber multifilament tensile reinforcement sheet, aiming to solve the problem that the reinforced multifilament splines often have uneven glue smearing, which directly affects the tensile performance test results and increases the test error. At the same time, the operation is complicated and has high requirements on personnel.

[0004] The utility model is implemented as follows, comprising an upper die and a lower die, wherein handles 1 are fixedly connected to both sides of the upper die, a plurality of groups of bosses are fixedly connected to the lower end surface of the upper die, the bosses are linear and evenly spaced and distributed on both sides of the bottom end of the upper die, handles 2 are fixedly connected to both sides of the lower die, a groove is provided on the upper end surface of the lower die, and the groove and the bosses are arranged correspondingly.

[0005] Furthermore, the first handle is smaller than the second handle.

[0006] Furthermore, the edges of the boss and the groove are both chamfered.

[0007] Furthermore, positioning columns are symmetrically fixedly connected to the lower end surface of the upper mold on both sides, and positioning holes are opened on the upper end surface of the lower mold, and the positioning holes are correspondingly arranged with the positioning columns.

[0008] Furthermore, a guide block is installed on the outer side of the corner of the lower mold, and the guide block is arranged in a right angle shape.

[0009] Furthermore, a mounting plate is fixedly connected to the inner bottom of the guide block, a mounting groove is opened at the corner bottom of the lower mold, the mounting plate and the mounting groove are adapted, a fixing bolt is arranged in the middle of the mounting plate, and the fixing bolt is threadedly connected to the threaded hole opened in the middle of the mounting groove.

[0010] Furthermore, the top edge of the guide block is provided with a chamfer.

[0011] Compared with the prior art, the utility model can ensure that the amount of glue applied to each multifilament spline when reinforcing is fixed by using a reinforcing sheet preforming mold, thereby reducing the operating requirements for personnel, basically eliminating the test errors caused by inconsistent reinforcement, and facilitating operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of a preforming die for a carbon fiber multifilament tensile reinforcement sheet provided by the utility model;

[0013] Figure 2 It is a structural schematic diagram of the lower mold of the carbon fiber multifilament tensile reinforcement sheet preforming mold provided by the utility model;

[0014] Figure 3 It is a structural schematic diagram of an upper mold of a preforming mold for a carbon fiber multifilament tensile reinforcement sheet provided by the utility model;

[0015] Figure 4 It is a schematic diagram of a guide block of a preforming die for a carbon fiber multifilament tensile reinforcement sheet provided by the utility model;

[0016] Figure 5 It is a cross-sectional view of a guide block of a preforming die for a carbon fiber multifilament tensile reinforcement sheet provided by the utility model.

[0017] The figure numerals involved in the above drawings are: 1. upper mold; 2. lower mold; 3. handle one; 4. handle two; 5. boss; 6. positioning column; 7. groove; 8. positioning hole; 9. guide block; 10. mounting plate; 11. mounting groove; 12. fixing bolt. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] The implementation of the utility model is described in detail below in conjunction with a specific embodiment, including an upper mold 1 and a lower mold 2, and handles 3 are fixedly connected to the two sides of the upper mold 1, and multiple groups of bosses 5 are fixedly connected to the lower end surface of the upper mold 1, and the bosses 5 are linear and evenly spaced and distributed on both sides of the bottom of the upper mold 1, and handles 2 4 are fixedly connected to the two sides of the lower mold 2. A groove 7 is opened on the upper end surface of the lower mold 2, and the groove 7 and the boss 5 are correspondingly arranged; when working, first, two pieces of kraft paper are laid on the grooves 7 corresponding to the lower mold 2, and after completion, the handle 3 is held to close the upper mold 1 and the lower mold 2, and then the handle 3 is held to remove the upper mold 1. At this time, there will be a concave groove of a certain depth between the two dotted lines of the kraft paper, and then the glue is applied to the concave groove with a metal rod, and the multifilament splines are put in turn. Finally, two pieces of kraft paper are taken and covered on the kraft paper respectively, and after completion, the handle 3 is held again to close the upper mold 1 and the lower mold 2, and the oven is put into curing at the same time.

[0020] The handle 1 3 is smaller than the handle 2 4, so it is convenient to take and put the upper mold 1 during work.

[0021] The edges of the boss 5 and the groove 7 are both provided with chamfers; during operation, unnecessary damage to the carbon fiber is avoided when the upper mold 1 and the lower mold 2 are closed.

[0022] The lower end surface of the upper mold 1 is symmetrically fixedly connected with positioning columns 6 on both sides, and the upper end surface of the lower mold 2 is provided with positioning holes 8, and the positioning holes 8 are arranged corresponding to the positioning columns 6; when working, the positioning columns 6 of the upper mold 1 can cooperate with the positioning holes 8 of the lower mold 2 to ensure the accuracy of mold closing.

[0023] A guide block 9 is installed on the outer side of the corner of the lower mold 2, and the guide block 9 is set to a right angle. During operation, during the mold closing process, the upper mold 1 is guided by the guide block 9, so that the upper mold 1 and the lower mold 2 can be accurately closed, and the positioning column 6 can be accurately inserted into the positioning hole 8, so that the mold can be closed quickly and the closing speed can be improved.

[0024] A mounting plate 10 is fixedly connected to the inner bottom of the guide block 9, and a mounting groove 11 is provided at the bottom of the corner of the lower mold 2. The mounting plate 10 and the mounting groove 11 are adapted to each other, and a fixing bolt 12 is provided in the middle of the mounting plate 10. The fixing bolt 12 is threadedly connected to a threaded hole provided in the middle of the mounting groove 11. When working, the mounting plate 10 is engaged in the mounting groove 11. At this time, the guide block 9 is fitted with the side wall at the corner of the lower mold 2, and then the guide block 9 is fixed by the fixing bolt 12, so that the guide block 9 can be easily disassembled and assembled.

[0025] The top edge of the guide block 9 is provided with a chamfer; during operation, the upper mold 1 is conveniently inserted from the top of the guide block 9, so as to facilitate mold closing.

[0026] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it 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 direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] Reference Figure 1-5 As shown, it is a preferred embodiment provided by the utility model.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A preforming die for a carbon fiber multifilament tensile reinforcement sheet, characterized in that: The invention comprises an upper die (1) and a lower die (2), wherein handles (3) are fixedly connected to both sides of the upper die (1), and a plurality of groups of bosses (5) are fixedly connected to the lower end surface of the upper die (1), wherein the bosses (5) are linear and evenly spaced and distributed on both sides of the bottom of the upper die (1), and handles (4) are fixedly connected to both sides of the lower die (2), and a groove (7) is provided on the upper end surface of the lower die (2), wherein the groove (7) and the bosses (5) are arranged correspondingly.

2. The carbon fiber multifilament tensile reinforcement sheet preforming mold according to claim 1, characterized in that: The handle one (3) is smaller than the handle two (4).

3. The carbon fiber multifilament tensile reinforcement sheet preforming die according to claim 2, characterized in that: The edges of the boss (5) and the groove (7) are both provided with chamfers.

4. The carbon fiber multifilament tensile reinforcement sheet preforming die according to claim 3, characterized in that: Positioning columns (6) are symmetrically fixedly connected to the lower end surface of the upper mold (1), and a positioning hole (8) is opened on the upper end surface of the lower mold (2). The positioning hole (8) is arranged corresponding to the positioning column (6).

5. The carbon fiber multifilament tensile reinforcement sheet preforming die according to claim 4, characterized in that: A guide block (9) is installed on the outer side of the corner of the lower mold (2), and the guide block (9) is arranged in a right angle shape.

6. The carbon fiber multifilament tensile reinforcement sheet preforming die according to claim 5, characterized in that: A mounting plate (10) is fixedly connected to the inner bottom of the guide block (9), a mounting groove (11) is provided at the corner bottom of the lower mold (2), the mounting plate (10) and the mounting groove (11) are adapted to each other, a fixing bolt (12) is provided in the middle of the mounting plate (10), and the fixing bolt (12) is threadedly connected to a threaded hole provided in the middle of the mounting groove (11).

7. The carbon fiber multifilament tensile reinforcement sheet preforming die according to claim 6, characterized in that: The top edge of the guide block (9) is provided with a chamfer.

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