Adjustable cutting die assembly of steel screen machine

Abstract

The utility model relates to an adjustable cutting die assembly of a steel screen machine, which comprises an upper knife rest, a cuboid upper cutting die, a lower cutting die holder and a cuboid lower cutting die, the upper cutting die is arranged on the front side of the upper knife rest, and the lower cutting die is arranged on the front side of the lower cutting die holder. A first installation groove which extends in the left-right direction and is matched with the upper cutting die is formed in the lower portion of the front side of the upper cutter rest, the upper cutting die is transversely and vertically arranged and installed in the first installation groove through a first gap fine adjustment assembly, and the upper end of the upper cutting die is connected with the upper cutter rest through a first height fine adjustment assembly. A second installation groove which extends in the left-right direction and is matched with the lower cutting die is formed in the upper portion of the front side of the lower cutting die base, a first fine adjustment assembly is installed on the lower tool rest, and the lower cutting die is connected with the lower tool rest through a pressing adjustment assembly. The device has the advantages that the gap between the upper cutting die and the lower cutting die can be adjusted on line, the flatness of a mesh surface can be controlled, the short intercept of meshes can be adjusted, and the cutting dies can be effectively controlled to deform due to vibration, impact and temperature influence in the production process.

Description

Technical Field

[0001] The utility model relates to the technical field of expanded metal processing, and particularly relates to an adjustable die assembly for an expanded metal machine. Background Art

[0002] At present, during the production process of traditional expanded metal machines, it is necessary to adjust the die, specifically, to adjust the gap between the upper and lower dies. The conventional adjustment method is to pad paper or a feeler gauge between the die and the die holder. This method is simple, convenient, easy to master, and has a low die processing cost. However, this method has the following defects:

[0003] 1. It is necessary to stop the machine during adjustment, and it is impossible to adjust while punching during continuous production. Moreover, it is easy to break when punching the mesh again after adjusting and stopping the machine, and the adjustment efficiency is low;

[0004] 2. It cannot be adjusted infinitely and precisely, and the adjustment quality is poor;

[0005] 3. The die is easily deformed by vibration, impact, and temperature, resulting in instability during mesh punching processing. This is a common problem that traditional expanded metal machines have never been able to solve;

[0006] 4. The defective rate is high, product quality control is difficult, the quality is uneven, and the production cost is high.

[0007] Based on the current situation, it is urgent to develop an adjustable die structure that is efficient, accurate, stable, and easy to operate. Summary of the Utility Model

[0008] The technical problem to be solved by the utility model is to provide an adjustable die assembly for an expanded metal machine, which effectively overcomes the defects of the prior art.

[0009] The technical solution of the utility model to solve the above technical problems is as follows:

[0010] An adjustable die assembly for a expanded metal machine, comprising an upper tool holder, a rectangular upper die, a lower die holder and a rectangular lower die. The upper tool holder and the lower die holder are respectively installed on the expanded metal machine, and the upper tool holder is located above the lower die holder. The upper die is arranged on the front side of the upper tool holder, and the lower die is arranged on the front side of the lower die holder. A first installation groove extending in the left-right direction and adapted to the upper die is provided at the lower part of the front side of the upper tool holder. The upper die is arranged horizontally and vertically and is installed in the first installation groove through a first gap fine-tuning component. The upper end of the upper die is connected to the upper tool holder through a first height fine-tuning component, and the first height fine-tuning component is used to adjust the front-back gap between the upper die and the upper tool holder. A second installation groove extending in the left-right direction and adapted to the lower die is provided at the upper part of the front side of the lower die holder. A first fine-tuning component for jacking up the lower die is installed on the lower tool holder, and the lower die is connected to the lower tool holder through a pressing adjustment component.

[0011] On the basis of the above technical solution, the present utility model can also be improved as follows.

[0012] Further, the first gap fine-tuning component includes a plurality of upper die pressing screws. A plurality of first adjustment holes penetrating through the upper die in the front-back direction are spaced apart in the left-right direction on the upper die. The first adjustment holes are strip-shaped holes extending vertically. A plurality of first screw holes corresponding to the upper die pressing screws one by one are provided on the side wall of the first installation groove. The plurality of upper die pressing screws respectively pass through the plurality of first adjustment holes one by one and are threadedly connected to the corresponding first screw holes.

[0013] Further, the first height fine-tuning component includes a plurality of vertically arranged upper die adjusting screws. A plurality of second screw holes corresponding to the upper die adjusting screws one by one are provided at intervals in the left-right direction on the top wall of the first installation groove. The lower ends of the upper die adjusting screws are respectively provided with fitting blocks. The upper ends of the upper die adjusting screws are threadedly connected to the corresponding second screw holes. A plurality of limit grooves penetrating through the upper die in the front-back direction are provided in the left-right direction at the upper end of the upper die. The plurality of fitting blocks are respectively embedded into the plurality of limit grooves one by one and can move back and forth relative to the limit grooves, so as to cooperate with the first gap fine-tuning component to adjust the gap between the upper die and the side wall of the first installation groove. A torque transmission member for driving the rotation of the upper die adjusting screw is provided on the upper die adjusting screw.

[0014] Further, the limit groove is a dovetail groove, and the corresponding fitting block is a dovetail-shaped block member.

[0015] Further, an installation block extending in the left-right direction protrudes from the front side of the lower die holder, and the second installation groove is formed between the installation block and the upper part of the front side of the lower die holder.

[0016] Further, the first fine-tuning component includes a plurality of lower die adjusting screws. A plurality of third screw holes are vertically provided in the mounting block and are spaced apart in the left-right direction. The plurality of lower die adjusting screws respectively penetrate through the plurality of third screw holes from bottom to top in a one-to-one correspondence and are threadedly connected to the third screw holes. A second locking nut is provided at the lower end of the lower die adjusting screw, and the second locking nut is used to be screwed to abut against or separate from the lower end of the mounting block.

[0017] Further, the pressing and adjusting component includes a plurality of lower die pressing screws. A plurality of fourth screw holes are spaced apart in the left-right direction on the side wall of the second installation groove. A plurality of installation through holes penetrating through the lower die in the front-back direction are spaced apart in the left-right direction on the lower die. The plurality of lower die pressing screws respectively penetrate through the plurality of installation through holes in the front-back direction in a one-to-one correspondence and are respectively threadedly connected to the fourth screw holes in a one-to-one correspondence. The front end of the installation through hole is tapered, and a tapered fitting portion is provided at the rear end of the lower die pressing screw. The fitting portion is embedded in the front end of the installation through hole.

[0018] Further, a plurality of fifth screw holes penetrating through the lower die in the front-back direction are spaced apart in the left-right direction on the lower die. Set screws threadedly connected thereto are respectively installed in the plurality of fifth screw holes, and the set screws are used to be screwed to abut against the side wall of the second installation groove to adjust the gap between the lower die and the side wall of the second installation groove.

[0019] The beneficial effects of the present utility model are as follows: The structure is reasonably designed, and the gap and straightness between the upper and lower dies can be adjusted online, which is simple, convenient, fast and greatly improves production efficiency. Stepless precise adjustment is achieved, that is, the flatness of the mesh surface can be controlled, and the short intercept of the mesh holes can be adjusted. It can effectively control the deformation of the die due to vibration, impact and temperature influence during the production process. Description of the Drawings

[0020] Figure 1 It is an assembled side view of the adjustable die assembly of the expanded metal machine of the present utility model;

[0021] Figure 2 It is an assembled front view of the adjustable die assembly of the expanded metal machine of the present utility model;

[0022] Figure 3 It is an assembled three-dimensional view of the adjustable die assembly of the expanded metal machine of the present utility model;

[0023] Figure 4 It is an exploded view of the structure of the adjustable die assembly of the expanded metal machine of the present utility model;

[0024] Figure 5 It is a structural diagram of the upper die of the adjustable die assembly of the expanded metal machine of the present utility model;

[0025] Figure 6 This is a structural diagram of the lower die in the adjustable die assembly of the expanded metal machine of the present utility model;

[0026] Figure 7 This is a schematic structural diagram of the installation through hole in the lower die of the adjustable die assembly of the expanded metal machine of the present utility model;

[0027] Figure 8 This is a schematic structural diagram of the upper die adjusting screw in the adjustable die assembly of the expanded metal machine of the present utility model;

[0028] Figure 9 This is a schematic structural diagram of the lower die pressing screw in the adjustable die assembly of the expanded metal machine of the present utility model.

[0029] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0030] 1. Upper tool holder; 2. Upper die; 3. Lower die base; 4. Lower die; 5. First clearance fine-tuning assembly; 6. First height fine-tuning assembly; 7. First fine-tuning assembly; 8. Pressing adjustment assembly; 9. Set screw; 21. First adjustment hole; 22. Limit groove; 51. Upper die pressing screw; 61. Upper die adjusting screw; 71. Lower die adjusting screw; 81. Lower die pressing screw; 411. Installation through hole; 612. Torque transmission member; 711. Second locking nut. Specific Embodiment

[0031] The principles and features of the present utility model will be described below with reference to the attached drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0032] Embodiment: As Figures 1 to 7 shown, the adjustable die assembly of the expanded metal machine in this embodiment includes an upper tool holder 1, a rectangular parallelepiped-shaped upper die 2, a lower die base 3, and a rectangular parallelepiped-shaped lower die 4. The above-mentioned upper tool holder 1 and lower die base 3 are respectively installed on the expanded metal machine, and the above-mentioned upper tool holder 1 is located above the above-mentioned lower die base 3. The above-mentioned upper die 2 is arranged on the front side of the above-mentioned upper tool holder 1, and the above-mentioned lower die 4 is arranged on the front side of the above-mentioned lower die base 3. The lower part of the front side of the above-mentioned upper tool holder 1 is provided with a first installation groove extending in the left-right direction and adapted to the above-mentioned upper die 2. The above-mentioned upper die 2 is arranged horizontally and vertically and is installed in the above-mentioned first installation groove through the first clearance fine-tuning assembly 5. The upper end of the above-mentioned upper die 2 is connected to the above-mentioned upper tool holder 1 through the first height fine-tuning assembly 6. The above-mentioned first height fine-tuning assembly 6 is used to adjust the front-back clearance between the above-mentioned upper die 2 and the above-mentioned upper tool holder 1. The upper part of the front side of the above-mentioned lower die base 3 is provided with a second installation groove extending in the left-right direction and adapted to the above-mentioned lower die 4. A first fine-tuning assembly 7 for jacking up the above-mentioned lower die 4 upward is installed on the above-mentioned lower die base 3. The above-mentioned lower die 4 is connected to the above-mentioned lower die base 3 through a pressing adjustment assembly 8.

[0033] During the adjustment process of the adjustable die assembly of the expanded metal machine in this embodiment, the first height fine-tuning component 6 can finely adjust the up-and-down position change of the upper die 2 in the first installation groove. The first gap fine-tuning component 5 can finely adjust the front-and-back position change of the upper die 2 in the first installation groove. When fine-tuning the front-and-back spacing, it cooperates with the first height fine-tuning component 6 to achieve indirect precise adjustment and maintenance. In addition, the first fine-tuning component 7 can jack up the lower die 4 upward (partially or completely). And when the first fine-tuning component 7 is adjusted upward, the corresponding part of the lower die 4 bends upward, and vice versa, it returns downward until the flatness of the punched expanded metal and the short intercept of the mesh holes meet the requirements. With the pressing (locking) of the pressing adjustment component 8, a self-locking is formed between the lower die 4 and the lower die seat 3 to ensure that the lower die 4 will not bend and deform due to vibration, impact, and temperature during the processing of the expanded metal.

[0034] The adjustable die assembly of the expanded metal machine in this embodiment has the following advantages:

[0035] 1) It realizes adjustment while producing under the condition of the machine not stopping, which is simple, convenient, fast and greatly improves production efficiency.

[0036] 2) It realizes stepless precise adjustment, that is, it can control the flatness of the mesh surface and adjust the short intercept of the mesh holes.

[0037] 3) It can effectively control the deformation of the die due to vibration, impact, and temperature during the production process. It solves the common problem that has not been solved by the expanded metal machine for a long time.

[0038] 4) It can adjust the gap and straightness between the upper and lower dies under the condition of non-stop and broken net, which more effectively improves the product quality and production efficiency.

[0039] As a preferred implementation manner, the above-mentioned first gap fine-tuning component 5 includes a plurality of upper die pressing screws 51. A plurality of first adjustment holes 21 penetrating through the upper die 2 in the left-right direction are spaced apart along the upper die 2. The first adjustment holes 21 are strip-shaped holes extending vertically. A plurality of first screw holes corresponding to the upper die pressing screws 51 one by one are provided on the side wall of the first installation groove. The plurality of upper die pressing screws 51 respectively pass through the plurality of first adjustment holes 21 one by one and are threadedly connected to the corresponding first screw holes.

[0040] In the above-mentioned implementation, by tightening or loosening the upper die pressing screws 51 to adjust the tightness between the upper die 2 and the side wall of the first installation groove to finely adjust the gap (front-and-back gap) of the upper die 2, the operation is relatively simple and convenient.

[0041] As a preferred embodiment, the above-mentioned first height fine-tuning component 6 includes a plurality of upper die adjusting screws 61 arranged vertically. The top wall of the above-mentioned first installation groove is provided with a plurality of second screw holes corresponding to the above-mentioned upper die adjusting screws 61 at intervals in the left-right direction. The lower ends of the above-mentioned upper die adjusting screws 61 are respectively provided with fitting blocks (designated by b in the figure, such as Figure 8 shown), the upper ends of the above-mentioned upper die adjusting screws 61 are threadedly connected to the corresponding above-mentioned second screw holes. The upper end of the above-mentioned upper die 2 is provided with a plurality of limiting grooves 22 penetrating through it in the front-back direction in the left-right direction. The above-mentioned fitting blocks are respectively embedded in the above-mentioned limiting grooves 22 one by one and can move back and forth relative to the above-mentioned limiting grooves 22, so as to cooperate with the above-mentioned first gap fine-tuning component 5 to adjust the gap between the above-mentioned upper die 2 and the side wall of the first installation groove. A torque transmission member 612 for driving its rotation is provided on the above-mentioned upper die adjusting screw 61.

[0042] In the above-mentioned implementation, when adjusting the upper die adjusting screw 61 upward, specifically, the torque transmission member 612 can be driven to rotate by a tool, so as to drive the upper die adjusting screw 61 to screw in and move up and down relative to the upper tool holder 1, so that the corresponding part of the upper die 2 bends upward. On the contrary, the upper die 2 bends downward until the flatness of the punched expanded metal sheet and the short intercept of the mesh holes meet the requirements. After adjustment, it can be fixed by tightening the upper die pressing screw 51. It should be noted that when adjusting the upper die adjusting screw 61, it should be adjusted upward and downward as much as possible adjacent to each other, so that a self-locking is formed among the upper die adjusting screw 61, the upper die 2 and the upper tool holder 1. Ensure that the upper die 2 will not bend and deform due to vibration, impact and temperature during the processing of the expanded metal sheet.

[0043] It should be added that: while fine-tuning the height of the upper die 2, since the first adjustment hole 21 is set as a strip-shaped hole (that is, a slotted hole), therefore, the design of this strip-shaped hole can allow the upper die pressing screw 51 to move up and down in the first adjustment hole 21 during the process of adjusting the height and gap. Especially when adjusting the height greatly, the design of the first adjustment hole 21 is more reasonable and easy to adjust.

[0044] In this embodiment, the above-mentioned limiting groove 22 is an inverted T-shaped groove, and the corresponding above-mentioned fitting block is a flat-shaped block member. The fitting block is limited in the inverted T-shaped groove and will not disengage in the up-down direction, and can be adjusted as the upper die adjusting screw 61 is screwed in.

[0045] In this embodiment, an installation block extending in the left-right direction protrudes from the front side of the above-mentioned lower die base 3. The installation block and the upper part of the front side of the above-mentioned lower die base 3 constitute the above-mentioned second installation groove.

[0046] As a preferred embodiment, the first fine-tuning component 7 includes a plurality of lower die adjusting screws 71. A plurality of third screw holes are vertically provided in the mounting block and are spaced apart in the left-right direction. The plurality of lower die adjusting screws 71 respectively penetrate through the plurality of third screw holes from bottom to top in a one-to-one correspondence and are threadedly connected to the third screw holes. A second locking nut 711 is provided at the lower end of the lower die adjusting screw 71, and the second locking nut 711 is used to be screwed to abut against or separate from the lower end of the mounting block.

[0047] In the above implementation, when the lower die adjusting screw 71 is adjusted upward, the corresponding part of the lower die 4 bends upward. Conversely, it returns downward until the flatness of the punched expanded metal sheet and the short intercept of the mesh holes meet the requirements. When the lower die 4 is installed, it is slightly lifted by the lower die adjusting screw 71. When cooperating with the locking of the pressing adjustment component 8, the corresponding part of the lower die 4 bends downward. Conversely, it returns upward until the flatness of the punched expanded metal sheet and the short intercept of the mesh holes meet the requirements.

[0048] As a preferred embodiment, the pressing adjustment component 8 includes a plurality of lower die pressing screws 81. A plurality of fourth screw holes are spaced apart in the left-right direction on the side wall of the second installation groove. A plurality of installation through holes 411 penetrating through the lower die 4 in the front-rear direction are spaced apart in the left-right direction on the lower die 4. The plurality of lower die pressing screws 81 respectively penetrate through the plurality of installation through holes 411 in the front-rear direction in a one-to-one correspondence and are respectively threadedly connected to the fourth screw holes in a one-to-one correspondence. The front end of the installation through hole 411 is conical, and the rear end of the lower die pressing screw 81 is provided with a conical fitting part. The fitting part is embedded in the front end of the installation through hole 411. This structural design is relatively reasonable and can utilize the fit between the fitting part and the conical shape at the front end of the installation through hole 411, so that the lower die 4 is locally pulled downward and bent. Through the joint adjustment of the plurality of pressing adjustment components 8, the effective adjustment of the flatness of the punched expanded metal sheet during mesh punching can be realized.

[0049] In the above implementation, the installation through hole 411 with a conical front end is provided on the lower die 4, and the lower die pressing screw 81 is provided with a corresponding conical fitting part (designated as a in the figure). The front conical hole part of the installation through hole 411 fits into a wedge block structure. When the lower die 4 is installed, it is slightly lifted by the lower die adjusting screw 71, so that the conical hole of the lower die 4 is slightly higher than the installation through hole 411 of the lower die base 3. When the lower die pressing screw 81 is locked, the lower die 4 can be driven to bend downward at the corresponding part after the fitting part is embedded in the installation through hole 411. Thus, the adjustment of the flatness of the expanded metal sheet and the short intercept of the mesh holes is realized, and the operation is very simple, fast and convenient.

[0050] As a preferred embodiment, a plurality of fifth screw holes penetrating the lower cutting die 4 in the front-rear direction are provided at intervals in the left-right direction. Set screws 9 threadedly connected thereto are respectively installed in the fifth screw holes. The set screws 9 are used to be screwed until they abut against the side wall of the second installation groove, so as to adjust the gap between the lower cutting die 4 and the side wall of the second installation groove.

[0051] In the above embodiment, by screwing the set screw 9 until it abuts against the second installation groove, the lower cutting die 4 can be pushed reversely, so as to realize the adjustment of the gap between the lower cutting die 4 and the side wall of the second installation groove. The operation is very simple and convenient.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 therefore should not be construed as a limitation of the present invention.

[0053] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium. It may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be 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, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0056] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0057] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present utility model.

Claims

1. An adjustable knife die assembly for an expanded metal machine, characterized in that: The invention comprises an upper knife frame (1), a rectangular upper knife die (2), a lower knife die seat (3) and a rectangular lower knife die (4), wherein the upper knife frame (1) and the lower knife die seat (3) are respectively mounted on a steel plate mesh machine, and the upper knife frame (1) is located above the lower knife die seat (3), the upper knife die (2) is arranged on the front side of the upper knife frame (1), and the lower knife die (4) is arranged on the front side of the lower knife die seat (3), and a first mounting groove extending in the left-right direction and matching with the upper knife die (2) is provided at the lower front side of the upper knife frame (1), and the upper knife die (2) is arranged horizontally and vertically, and is finely adjusted by a first gap. The component (5) is installed in the first installation groove, the upper end of the upper cutting die (2) is connected to the upper tool holder (1) through a first height fine-adjustment component (6), and the first height fine-adjustment component (6) is used to adjust the front and rear gap between the upper cutting die (2) and the upper tool holder (1). The front upper part of the lower cutting die seat (3) is provided with a second installation groove extending in the left and right direction and adapted to the lower cutting die (4). The lower cutting die seat (3) is installed with a first fine-adjustment component (7) for lifting the lower cutting die (4) upwards. The lower cutting die (4) is connected to the lower cutting die seat (3) through a clamping adjustment component (8).

2. The adjustable knife die assembly of the expanded metal machine according to claim 1, characterized in that: The first gap fine-adjusting component (5) comprises a plurality of upper die clamping screws (51); the upper die (2) is provided with a plurality of first adjustment holes (21) extending therethrough in a front-to-rear direction and spaced apart from each other in a left-right direction; the first adjustment holes (21) are vertically extending strip holes; the side wall of the first mounting groove is provided with a plurality of first screw holes corresponding to the upper die clamping screws (51); the plurality of upper die clamping screws (51) respectively pass through the plurality of first adjustment holes (21) in a one-to-one manner and are threadedly connected to the corresponding first screw holes.

3. The adjustable knife die assembly of the expanded metal machine according to claim 1, characterized in that: The first height fine-adjusting component (6) comprises a plurality of upper cutting die adjusting screws (61) arranged vertically, a plurality of second screw holes corresponding to the upper cutting die adjusting screws (61) are arranged at intervals along the left-right direction on the top wall of the first mounting groove, the lower ends of the upper cutting die adjusting screws (61) are respectively provided with engaging blocks, the upper ends of the upper cutting die adjusting screws (61) are threadedly connected with the corresponding second screw holes, the upper end of the upper cutting die (2) is provided with a plurality of limiting grooves (22) penetrating therethrough in the left-right direction, the plurality of engaging blocks are respectively and one-to-one embedded in the plurality of limiting grooves (22), and can move forward and backward relative to the limiting grooves (22), so as to cooperate with the first gap fine-adjusting component (5) to adjust the gap between the upper cutting die (2) and the side wall of the first mounting groove, and the upper cutting die adjusting screw (61) is provided with a torque transmission member (612) for driving the upper cutting die adjusting screw (61) to rotate.

4. The adjustable knife die assembly of the expanded metal machine according to claim 3, characterized in that: The limiting groove (22) is an inverted T-shaped groove, and the corresponding engaging block is a flat block component.

5. The adjustable knife die assembly of the expanded metal machine according to claim 1, characterized in that: The front side of the lower die holder (3) is protrudingly provided with a mounting block extending in the left-right direction, and the second mounting groove is formed between the mounting block and the upper front side of the lower die holder (3).

6. The adjustable knife die assembly of the expanded metal machine according to claim 5, characterized in that: The first fine-tuning component (7) comprises a plurality of lower die adjusting screws (71), a plurality of third screw holes spaced apart in the left-right direction are vertically arranged in the mounting block, the plurality of lower die adjusting screws (71) respectively pass through the plurality of third screw holes one by one from bottom to top and are threadedly connected with the third screw holes, a second locking nut (711) is arranged at the lower end of the lower die adjusting screw (71), and the second locking nut (711) is used to be screwed until it abuts against or separates from the lower end of the mounting block.

7. The adjustable knife die assembly of the expanded metal machine according to claim 5, characterized in that: The clamping adjustment assembly (8) comprises a plurality of lower die clamping screws (81), a plurality of fourth screw holes are arranged on the side wall of the second mounting groove at intervals along the left-right direction, a plurality of mounting through holes (411) are arranged on the lower die (4) at intervals along the left-right direction and pass through the lower die, the plurality of lower die clamping screws (81) respectively pass through the plurality of mounting through holes (411) in a one-to-one correspondence along the front-to-back direction, and are respectively threadedly connected to the fourth screw holes in a one-to-one correspondence, the front end of the mounting through hole (411) is set to be conical, and the rear end of the lower die clamping screw (81) is provided with a conical fitting portion, and the fitting portion is embedded in the front end of the mounting through hole (411).

8. The adjustable knife die assembly of the expanded metal machine according to claim 7, characterized in that: The lower cutting die (4) is provided with a plurality of fifth screw holes passing through it front and back at intervals along the left-right direction, and each of the fifth screw holes is provided with a set screw (9) threadedly connected thereto, and the set screw (9) is used to be screwed until it abuts against the side wall of the second mounting groove, so as to adjust the gap between the lower cutting die (4) and the side wall of the second mounting groove.

Images