Waterproof coiled material sample cutting mold

Abstract

The utility model provides a waterproof coiled material sample cutting mold which comprises a cutting assembly and an ejection assembly, and the ejection assembly, the cutting assembly and a waterproof coiled material are sequentially arranged. The cutting assembly comprises a mold base plate, two guide grooves, a plurality of cutting knives and a plurality of guide holes, the two guide grooves are rectangular grooves and are formed in the two ends of the mold base plate, the cutting knives are vertically arranged on the mold base plate, the guide holes are formed in the mold base plate, and the guide holes are formed in the cutting knives; the ejection assembly comprises an ejection plate, two guide blocks and a plurality of ejection rod assemblies, the two guide blocks are arranged at the two ends of the ejection plate, and the ejection rod assemblies are perpendicularly arranged on the ejection plate. According to the utility model, all test pieces required by a plurality of physical property items can be cut at one time by using one mold without drawing lines according to the principle of uniform sample cutting in the width direction, and meanwhile, test piece numbers and direction marks are printed on the test pieces, so that the high efficiency, standardization and safety of waterproof roll sample cutting can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of waterproof materials, in particular to a waterproof coiled material cutting die. Background Art

[0002] Building waterproofing materials play a crucial role in the construction industry, ensuring the waterproof performance of buildings and maintaining the safety and stability of building structures. Common building waterproofing materials include polymer coatings, asphalt, and PVC waterproofing membranes. Among these waterproofing materials, PVC waterproofing membranes are widely used in waterproofing projects in areas such as roofs, basements, and bathrooms due to their unique properties and wide applicability.

[0003] The national standard GB, the European standard EN, the American standard ASTM, and the Japanese standard JIS all have testing requirements for the physical properties of waterproof membranes, and it is necessary to test the cut specimens of waterproof membranes. Irregular specimens include tensile dumbbell specimens, right-angle tear specimens, trapezoidal tear specimens, etc. The cutting method is to use a single dedicated cutting knife for cutting, while regular specimens are rectangular or circular, and are usually cut manually with a wallpaper knife after drawing lines. After cutting, the specimens must be marked to clarify their specimen numbers and the processing direction of the waterproof membrane. Each test item requires the production of 2-10 specimens, which is a very tedious task. If you are not careful, problems such as marking errors, manual drawing of lines, or irregular cutting shapes will occur. In addition, the work efficiency is low and the time is long, and sometimes even fingers may be scratched. Utility Model Content

[0004] In view of this, the utility model aims to provide a waterproof coil cutting die to solve the problems of tedious and time-consuming cutting work, marking errors, abnormal shapes, and scratches on fingers when cutting.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A waterproof coiled material cutting die comprises a cutting assembly and an ejection assembly, wherein the ejection assembly, the cutting assembly and the waterproof coiled material are arranged in sequence;

[0007] Preferably, the waterproof membrane is a thermoplastic polyolefin (TPO) waterproof membrane specified in GB 27789-2011 or a polyvinyl chloride (PVC) waterproof membrane specified in GB12952-2011;

[0008] The cutting assembly includes a mold base, two guide grooves, a plurality of cutting knives, and a plurality of guide holes. The two guide grooves are rectangular grooves and are arranged at both ends of the mold base. The plurality of cutting knives are vertically arranged on the mold base. The plurality of guide holes are arranged on the mold base, and the guide holes are arranged inside the cutting knives.

[0009] Preferably, the mold substrate is made of plywood or aluminum plate with a thickness of 18-26 mm;

[0010] There are 21 cutting knives;

[0011] There are 62 guide holes in total, which are cylindrical, perpendicular to the mold base plate, and have a diameter of 10-15 mm.

[0012] The ejection assembly includes an ejection plate, two guide blocks, and a plurality of ejection rod assemblies. The two guide blocks are arranged at both ends of the ejection plate, and the plurality of ejection rod assemblies are vertically arranged on the ejection plate.

[0013] Preferably, the top template is made of plywood, aluminum plate or plastic hard plate with a thickness of 15-25 mm; the guide block is made of plywood, aluminum plate or plastic hard plate.

[0014] The height of the ejector rod assembly is greater than the sum of the heights of the mold base plate and the cutting knife, so as to eject the test piece embedded in the cutting knife from the cutting assembly.

[0015] There are 62 ejector rod assemblies in total.

[0016] Furthermore, the cutting knife includes one or more blades, one or more blades are arranged vertically on the mold substrate, and one or more blades form a closed area according to the shape of the specimen, a blade is provided at one end away from the mold substrate, and the inclined surface of the blade is arranged on the outside of the closed area.

[0017] Preferably, the blade is made of hardened steel, has a thickness of 1.2-3.0 mm, a height of 8-15 mm, and a blade angle of 40-50 degrees.

[0018] Furthermore, the cutters include a longitudinal maximum tensile force cutter, a transverse maximum tensile force cutter, a longitudinal tensile strength cutter, a transverse tensile strength cutter, a longitudinal low-temperature bending cutter, a transverse low-temperature bending cutter, and a thermal dimensional change rate cutter.

[0019] Furthermore, the longitudinal maximum tensile force cutting knives are provided with 6, the transverse maximum tensile force cutting knives are provided with 6, the longitudinal tensile strength cutting knives are provided with 6, the transverse tensile strength cutting knives are provided with 6, the longitudinal low-temperature bending cutting knives are provided with 2, the transverse low-temperature bending cutting knives are provided with 2, and the thermal dimensional change rate cutting knives are provided with 3.

[0020] Furthermore, the closed areas formed by the longitudinal maximum tensile force cutting knife, transverse maximum tensile force cutting knife, longitudinal low-temperature bending cutting knife, transverse low-temperature bending cutting knife, and thermal dimensional change rate cutting knife are all rectangular, and the closed areas formed by the longitudinal tensile strength cutting knife and the transverse tensile strength cutting knife are all dumbbell-shaped.

[0021] Furthermore, the guide holes are arranged inside the cutter, and each cutter is provided with two guide holes, which are arranged at both ends of the cutter.

[0022] Furthermore, the length and width of the ejector plate correspond to the mold base plate, the size and position of the guide block correspond to the guide groove, the diameter of the ejector rod assembly corresponds to the inner diameter of the guide hole, and the position of the ejector rod assembly corresponds to the position of the guide hole.

[0023] The size and position of the guide blocks correspond to the guide grooves. The purpose is that when the ejector assembly and the cutting assembly overlap, the guide blocks at both ends of the ejector assembly enter the guide grooves at both ends of the mold base plate, thereby positioning the relative position of the ejector assembly and the cutting assembly in the horizontal direction, so that the ejector rod assembly can be accurately inserted into the guide hole at the corresponding position.

[0024] The position of the ejector rod assembly corresponds to the position of the guide hole, and plays a positioning and guiding role when the ejector rod assembly ejects the test piece in the cutter.

[0025] Furthermore, the ejector rod assembly includes a sleeve, a seal, a screw, and a printing character. A threaded hole is provided on the side wall of the sleeve, the screw is arranged in the threaded hole, the seal is arranged in the sleeve through the screw, the printing character is arranged at one end of the seal away from the sleeve, and the end of the sleeve away from the seal is arranged on the top template.

[0026] The sleeve is a steel round tube with a height of 10-15 mm and an outer diameter corresponding to the inner diameter of the guide hole.

[0027] The seal is made of plastic for printing and is cylindrical, with an outer diameter corresponding to the inner diameter of the sleeve.

[0028] Furthermore, the printed characters are convex and include letters and numbers.

[0029] Preferably, the letters include LD or TD, LD represents the longitudinal direction, TD represents the transverse direction, and the numbers include 1, 2, 3, 4, 5 or 6, which represent the specimen numbers.

[0030] Compared with the prior art, the waterproof coiled material cutting mold described in the present invention has the following advantages:

[0031] (1) The cutting mold described in the utility model integrates test pieces of various shapes together, uses one mold, does not need to draw lines, and cuts out all the test pieces required for multiple physical property items at one time according to the principle of uniform cutting in the width direction. At the same time, the test piece number and direction mark are printed on the test piece, which can realize efficient, standardized and safe cutting of waterproof membranes.

[0032] (2) The blade bevel of the present invention is arranged outside the closed area of ​​the cutting knife, so that the closed curve formed by the blade is the shape of the test piece, thereby ensuring the accuracy of the cutting size of the test piece.

[0033] (3) In addition to being able to eject the test piece, the seal described in the utility model can also be used to print a mark on the test piece through the printed words on the seal, which is used to identify the test piece number and direction. There is no need to draw lines, repeatedly cut manually, or mark each one with a pen. Standard test pieces with the required marks for multiple physical property items can be cut out at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0035] Figure 1 This is an overall schematic diagram of a waterproof membrane cutting mold according to an embodiment of the present utility model;

[0036] Figure 2 This is a schematic diagram of an ejector rod assembly of a waterproof membrane sample cutting mold according to an embodiment of the present utility model.

[0037] Description of reference numerals:

[0038] 1. Guide block; 2. Ejector plate; 3. Ejector rod assembly; 3-1. Printing; 3-2. Seal; 3-3. Sleeve; 3-4. Screw; 4. Longitudinal low-temperature bending cutter; 5. Thermal dimensional change rate cutter; 6. Guide hole; 7. Transverse maximum tensile force cutter; 8. Transverse low-temperature bending cutter; 9. Waterproof membrane; 10. Longitudinal tensile strength cutter; 11. Longitudinal maximum tensile force cutter; 12. Transverse tensile strength cutter; 13. Guide groove; 14. Mold base plate; 15. Blade. DETAILED DESCRIPTION

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0041] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0043] like Figures 1 to 2 As shown, a waterproof coiled material cutting mold includes a cutting component and an ejection component, wherein the ejection component, the cutting component, and the waterproof coiled material 9 are arranged in sequence;

[0044] The waterproof membrane 9 is a thermoplastic polyolefin (TPO) waterproof membrane according to GB 27789-2011 or a polyvinyl chloride (PVC) waterproof membrane according to GB 12952-2011;

[0045] The cutting assembly includes a mold base 14, two guide grooves 13, a plurality of cutting knives, and a plurality of guide holes 6. The two guide grooves 13 are rectangular grooves and are arranged at both ends of the mold base 14. The plurality of cutting knives are vertically arranged on the mold base 14. The plurality of guide holes 6 are arranged on the mold base 14, and the guide holes 6 are arranged inside the cutting knives.

[0046] The mold base plate 14 is made of plywood or aluminum plate with a thickness of 18-26 mm;

[0047] There are 31 cutting knives;

[0048] There are 62 guide holes 6 in total, which are cylindrical, perpendicular to the mold base plate 14 and have a diameter of 10-15 mm.

[0049] The ejection assembly includes an ejection plate 2, two guide blocks 1, and a plurality of ejection rod assemblies 3. The two guide blocks 1 are arranged at both ends of the ejection plate 2, and the plurality of ejection rod assemblies 3 are vertically arranged on the ejection plate 2.

[0050] The top template 2 is made of plywood, aluminum plate or plastic hard plate with a thickness of 15-25 mm; the guide block 1 is made of plywood, aluminum plate or plastic hard plate.

[0051] The height of the ejector rod assembly 3 is greater than the sum of the heights of the mold base plate 14 and the cutter, so as to eject the test piece embedded in the cutter from the cutting assembly.

[0052] There are 62 ejector rod assemblies 3 in total.

[0053] The cutting knife includes one or more blades 15, which are vertically arranged on the mold substrate 14, and one or more blades 15 form a closed area according to the shape of the test piece. The end of the blade 15 away from the mold substrate 14 is provided with a cutting edge, and the inclined surface of the cutting edge is arranged outside the closed area.

[0054] The blade 15 is made of hardened steel, has a thickness of 1.2-3.0 mm, a height of 8-15 mm, and a cutting angle of 40-50 degrees.

[0055] The cutting knives include a longitudinal maximum tensile force cutting knife 11, a transverse maximum tensile force cutting knife 7, a longitudinal tensile strength cutting knife 10, a transverse tensile strength cutting knife 12, a longitudinal low-temperature bending cutting knife 4, a transverse low-temperature bending cutting knife 8, and a thermal dimensional change rate cutting knife 5.

[0056] There are 6 longitudinal maximum tensile cutters 11, 6 transverse maximum tensile cutters 7, 6 longitudinal tensile strength cutters 10, 6 transverse tensile strength cutters 12, 2 longitudinal low-temperature bendability cutters 4, 2 transverse low-temperature bendability cutters 8, and 3 thermal dimensional change rate cutters 5.

[0057] The closed areas formed by the longitudinal maximum tensile force cutter 11, the transverse maximum tensile force cutter 7, the longitudinal low-temperature bendability cutter 4, the transverse low-temperature bendability cutter 8, and the thermal dimensional change rate cutter 5 are all rectangular, and the closed areas formed by the longitudinal tensile strength cutter 10 and the transverse tensile strength cutter 12 are all dumbbell-shaped.

[0058] The guide holes 6 are arranged inside the cutter, and two guide holes 6 are arranged inside each cutter, and the two guide holes 6 are arranged at both ends inside the cutter.

[0059] The length and width of the ejector plate 2 correspond to the mold base plate 14, the size and position of the guide block 1 correspond to the guide groove 13, the diameter of the ejector rod assembly 3 corresponds to the inner diameter of the guide hole 6, and the position of the ejector rod assembly 3 corresponds to the position of the guide hole 6.

[0060] The size and position of the guide blocks 1 correspond to the guide grooves 13. This is so that when the ejector assembly and the cutting assembly overlap, the guide blocks 1 at both ends of the ejector assembly enter the guide grooves 13 at both ends of the mold base plate 14, thereby positioning the ejector assembly and the cutting assembly relative to each other in the horizontal direction, and allowing the ejector rod assembly 3 to be accurately inserted into the guide holes 6 at the corresponding positions.

[0061] The position of the ejector rod assembly 3 corresponds to the position of the guide hole 6, which plays a positioning and guiding role when the ejector rod assembly 3 ejects the test piece from the cutter.

[0062] The ejector rod assembly 3 includes a sleeve 3-3, a seal 3-2, a screw 3-4, and a printing character 3-1. A threaded hole is provided on the side wall of the sleeve 3-3, the screw 3-4 is arranged in the threaded hole, the seal 3-2 is arranged in the sleeve 3-3 through the screw 3-4, the printing character 3-1 is arranged on the end of the seal 3-2 away from the sleeve 3-3, and the end of the sleeve 3-3 away from the seal 3-2 is arranged on the top template 2.

[0063] The sleeve 3 - 3 is a steel round tube with a height of 10-15 mm and an outer diameter corresponding to the inner diameter of the guide hole 6 .

[0064] The seal 3-2 is made of plastic for printing and is cylindrical, and its outer diameter corresponds to the inner diameter of the sleeve 3-3.

[0065] The printed characters 3 - 1 are convex and include letters and numbers.

[0066] The letters include LD or TD, LD represents the longitudinal direction, and TD represents the transverse direction. The numbers include 1, 2, 3, 4, 5 or 6, and the numbers represent the specimen numbers.

[0067] The number of test specimens and test specimen markings for each material performance item are shown in Table 1.

[0068] Table 1 Number of test pieces and test piece markings for each material performance item

[0069]

[0070] In a specific implementation, the lower long side of the waterproof membrane 9 is aligned with the lower long side of the mold substrate 14 and placed flat on top of the mold substrate 14. A die-cutting machine is used to stamp out 31 test pieces embedded in the cutters on the mold substrate 14. Six test pieces are embedded in the longitudinal maximum tensile force cutter 11, six test pieces are embedded in the transverse maximum tensile force cutter 7, six test pieces are embedded in the longitudinal tensile strength cutter 10, six test pieces are embedded in the transverse tensile strength cutter 12, two test pieces are embedded in the longitudinal low-temperature flexural property cutter 4, two test pieces are embedded in the transverse low-temperature flexural property cutter 8, and three test pieces are embedded in the thermal dimensional change rate cutter 5.

[0071] Turn the mold base plate 14 180 degrees, with the side with the cutter facing down, and place it on the rubber plate on the test bench. Apply ink on each printed character 3-1, and place the ejector assembly with the ejector rod assembly 3 facing down on the mold base plate 14. Make sure that the guide blocks 1 at both ends of the ejector assembly fit into the guide grooves 13 at both ends of the mold base plate 14. Through the directional effect, the ejector rod assembly 3 can be accurately inserted into the guide hole 6 at the corresponding position below. Since the height of the ejector rod assembly 3 is greater than the sum of the thickness of the mold base plate 14 and the height of the blade 15, when the ejector rod assembly 3 falls to the surface of the test piece, the ejector rod assembly 3 2 has not yet touched the mold base plate 14. The weight of the ejector assembly is fully applied to the printed characters 3-1 at the end of each stamp 3-2. Under the elastic reaction force of the test bench rubber plate, the ink on the printed characters 3-1 is printed on each test piece. To achieve the best effect, the cutting mold can be pressed evenly so that each printed character 3-1 is clearly printed on the test piece in each cutter. Finally, the cutting mold is lifted horizontally so that the ejector plate 2 falls onto the mold base plate 14. The lower end surface of the ejector rod assembly 3 exceeds the top of the blade 15. The test piece is ejected from each cutter by the ejector rod assembly 3 and falls onto the rubber plate on the test bench, completing the cutting.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A waterproofing coil cutting mold, characterized by: It comprises a cutting assembly, an ejection assembly, and the ejection assembly, the cutting assembly, and a waterproof roll (9) are arranged in sequence; The cutting assembly comprises a mold base (14), two guide grooves (13), a plurality of cutting knives, and a plurality of guide holes (6); the two guide grooves (13) are rectangular grooves and are arranged at both ends of the mold base (14); the plurality of cutting knives are arranged vertically on the mold base (14); the plurality of guide holes (6) are arranged on the mold base (14), and the guide holes (6) are arranged inside the cutting knives; The ejection assembly comprises an ejection plate (2), two guide blocks (1), and a plurality of ejection rod assemblies (3); the two guide blocks (1) are arranged at both ends of the ejection plate (2); and the plurality of ejection rod assemblies (3) are vertically arranged on the ejection plate (2).

2. The waterproof coiled material cutting mold according to claim 1, characterized in that: The cutting knife comprises one or more blades (15), the one or more blades (15) being vertically arranged on a mold substrate (14), and the one or more blades (15) forming a closed area according to the shape of the test piece, and a blade (15) being provided at one end away from the mold substrate (14), and the inclined surface of the blade being arranged outside the closed area.

3. The waterproof coiled material cutting mold according to claim 1, characterized in that: The cutting knives include a longitudinal maximum tensile force cutting knife (11), a transverse maximum tensile force cutting knife (7), a longitudinal tensile strength cutting knife (10), a transverse tensile strength cutting knife (12), a longitudinal low-temperature bending cutting knife (4), a transverse low-temperature bending cutting knife (8), and a thermal dimensional change rate cutting knife (5).

4. The waterproof coiled material cutting mold according to claim 3, characterized in that: The longitudinal maximum tensile force cutting knives (11) are provided with 6, the transverse maximum tensile force cutting knives (7) are provided with 6, the longitudinal tensile strength cutting knives (10) are provided with 6, the transverse tensile strength cutting knives (12) are provided with 6, the longitudinal low-temperature bending cutting knives (4) are provided with 2, the transverse low-temperature bending cutting knives (8) are provided with 2, and the thermal dimension change rate cutting knives (5) are provided with 3.

5. The waterproof coiled material cutting mold according to claim 3, characterized in that: The closed areas formed by the longitudinal maximum tensile force cutter (11), the transverse maximum tensile force cutter (7), the longitudinal low-temperature bendability cutter (4), the transverse low-temperature bendability cutter (8), and the thermal dimensional change rate cutter (5) are all rectangular, and the closed areas formed by the longitudinal tensile strength cutter (10) and the transverse tensile strength cutter (12) are all dumbbell-shaped.

6. The waterproof coiled material cutting mold according to claim 1, characterized in that: The guide holes (6) are arranged inside the cutter, and two guide holes (6) are arranged inside each cutter, and the two guide holes (6) are arranged at both ends inside the cutter.

7. The waterproof coiled material cutting mold according to claim 1, characterized in that: The length and width of the ejector plate (2) correspond to the mold base plate (14), the size and position of the guide block (1) correspond to the guide groove (13), the diameter of the ejector rod assembly (3) corresponds to the inner diameter of the guide hole (6), and the position of the ejector rod assembly (3) corresponds to the position of the guide hole (6).

8. The waterproof coiled material cutting mold according to claim 1, characterized in that: The ejector rod assembly (3) comprises a sleeve (3-3), a seal (3-2), a screw (3-4), and a printing character (3-1). A threaded hole is provided on the side wall of the sleeve (3-3), the screw (3-4) is arranged in the threaded hole, the seal (3-2) is arranged in the sleeve (3-3) through the screw (3-4), the printing character (3-1) is arranged at one end of the seal (3-2) away from the sleeve (3-3), and the end of the sleeve (3-3) away from the seal (3-2) is arranged on the ejector plate (2).

9. The waterproof coiled material cutting mold according to claim 8, characterized in that: The printed characters (3-1) are convex and include letters and numbers.

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