Forward and reverse clamping bridge die for die-cutting rule

Abstract

The utility model discloses a die-cutting rule forward and reverse clamping bridge die which comprises a bottom plate assembly, a lower punching needle assembly is arranged in the bottom plate assembly and connected with a first driving device, a guide plate is further arranged above the bottom plate assembly, the guide plate and the bottom plate assembly are arranged in a spaced mode, and an upper punching needle assembly is arranged in the guide plate and connected with a second driving device. The upper punching needle assembly is connected with a second driving device, when the bridge position of the cutter moves to the preset position, the first driving device drives the end of the lower punching needle assembly to stretch out of the bottom plate assembly, and the second driving device drives the end of the upper punching needle assembly to stretch out of the guide plate to punch opposite clamping positions on the two sides of the bridge position. Through the arrangement of the upper punching needle assembly and the lower punching needle assembly, the clamping position is punched on the cutter bridge position, the clamping position is fixedly connected with the die cutting plate, the procedure of manual gluing is omitted, the gluing time is shortened, the labor cost and the material cost are reduced, the installation efficiency is improved, and the die is simple in structure, low in cost, adaptive to an existing production line and high in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of die-cutting knives, in particular to a positive and negative clamping bridge die for die-cutting knives. Background Art

[0002] A die-cutting knife (also called a beer knife or an indentation knife) is a sheet material made of steel with a blade at the top for arranging a die-cutting plate. When in use, the die-cutting knife is placed on the die-cutting plate. Therefore, grooves with a preset shape are cut on the die-cutting plate by laser according to requirements for placing the die-cutting knife. To prevent the part within the cutting range of the die-cutting plate from completely losing its connection with the die-cutting plate and falling off during laser cutting, intermittent cutting is usually performed according to a preset length during cutting, so as to ensure that the part within the cutting range has a connection relationship with the die-cutting plate and avoid falling off. This connected part is called the die-cutting plate bridge. At the same time, to make the die-cutting knife fit the groove, a bridge hole adapted to the die-cutting plate bridge needs to be opened at the corresponding position of the die-cutting knife. This is the die-cutting knife bridge. The setting of the die-cutting knife bridge can also prevent the die-cutting knife from moving when it is arranged in the groove. The bridge hole positions of existing die-cutting knives are all ordinary hole positions. When inserted into the groove of the die-cutting plate, in order to prevent the die-cutting knife from falling off, glue also needs to be applied along the groove on the die-cutting plate to bond the die-cutting knife to the die-cutting plate. This results in time-consuming and laborious installation of the die-cutting knife, low installation efficiency, and high labor costs.

[0003] Therefore, it is urgent to design a positive and negative clamping bridge die for die-cutting knives to overcome one or more of the above-mentioned deficiencies of the prior art. Summary of the Utility Model

[0004] The technical solution adopted by the utility model to solve the above technical problems is as follows: A positive and negative clamping bridge die for die-cutting knives is provided, which is characterized in that it includes: a bottom plate assembly, a lower punch needle assembly is arranged inside the bottom plate assembly, the lower punch needle assembly is connected with a first driving device, the first driving device drives the end of the lower punch needle assembly to extend out or retract into the bottom plate assembly, a guide plate is further arranged above the bottom plate assembly, the guide plate is spaced from the bottom plate assembly for the knife material to pass through, an upper punch needle assembly is arranged inside the guide plate, the upper punch needle assembly is connected with a second driving device, the second driving device drives the end of the upper punch needle assembly to extend out or retract into the guide plate. When the bridge position of the knife material moves to a predetermined position, the first driving device drives the end of the lower punch needle assembly to extend out of the bottom plate assembly, and the second driving device drives the end of the upper punch needle assembly to extend out of the guide plate to punch out opposite clamping positions on both sides of the bridge position.

[0005] In a preferred embodiment, the bottom plate assembly includes: a base, one end of the base is provided with a recess, a back plate is fixedly arranged in the recess, one end of the guide plate is fixedly connected to the base, the top surface of the back plate and the bottom surface of the guide plate are arranged at intervals, a vertical sliding hole is arranged in the back plate, and the lower punch assembly is slidably arranged in the vertical sliding hole.

[0006] In a preferred embodiment, a chute is further formed in the bottom surface of the back plate, the chute is perpendicular to the vertical sliding hole, a lifting member is slidably arranged in the chute, one side of the lifting member is provided with an inclined surface inclined in a first direction, the lower punch assembly corresponds to the lifting member, and the bottom end of the lower punch assembly contacts the lifting member. The first driving device is connected to one end of the lifting member, and the lifting member jacks up the lower punch assembly through the inclined surface under the drive of the first driving device, so that the top end of the lower punch assembly extends out of the back plate.

[0007] In a preferred embodiment, the lower punch assembly includes: a first punch, the first punch is located in the vertical sliding hole, an inclined punching surface is arranged on the top surface of the first punch, and the bottom end of the first punch is adapted to the inclined surface.

[0008] In a preferred embodiment, the lower punch assembly further includes: a blanking punch, the blanking punch is slidably arranged in the back plate, the other side of the lifting member is further provided with an inclined surface inclined in a second direction, the second direction is opposite to the first direction, and the blanking punch corresponds to the upper punch assembly.

[0009] In a preferred embodiment, at least one lower pin is inserted through the back plate, the lower pin passes through the lower punch assembly, and the lower pin can move up and down in the back plate and the lower punch assembly.

[0010] In a preferred embodiment, pressing screws are respectively arranged on both sides of the top surface of the back plate where the lower punch assembly is located, the pressing screws correspond to the lower pins, springs are arranged at the bottoms of the pressing screws, and the springs contact the lower pins.

[0011] In a preferred embodiment, the upper punch assembly includes: a blade, the blade is slidably arranged at one end of the guide plate, a second punch is arranged in the blade, an adjusting screw is arranged at the top of the blade for adjusting the extending length of the second punch, a fixing set screw is further arranged on one side of the blade for fixing the second punch, and an avoidance position is arranged at the bottom end of the blade for the lower punch assembly to punch out a clamping position.

[0012] The beneficial effects of the present utility model are as follows: Through the arrangement of the upper punching needle assembly and the lower punching needle assembly, the present application realizes punching out clamping positions on the knife material bridge position, and uses the clamping positions to be fixedly connected with the die cutting plate, eliminating the process of manual gluing and the time for gluing, reducing labor costs and material costs, improving the installation efficiency, and having a simple mold structure, low cost, adapting to the existing production line, and strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural view of the present utility model;

[0014] Figure 2 is an exploded view of the present utility model;

[0015] Figure 3 is a schematic view of the cooperation between the lower punching needle assembly and the lifting member of the present utility model;

[0016] Figure 4 is a schematic structural view of the upper punching needle assembly of the present utility model;

[0017] Figure 5 is a punching state diagram of the present utility model.

[0018] In the figure:

[0019] 10. Bottom plate assembly; 101. Base; 102. Concave position; 103. Back plate; 104. Vertical sliding hole; 105. Chute; 11. Guide plate; 12. Upper punching needle assembly; 121. Blade; 122. Adjusting screw; 123. Fixed set screw; 124. Second punching needle; 125. Avoidance position; 13. Lower punching needle assembly; 131. First punching needle; 132. Ejector punching needle; 14. Lower pin; 15. Lower pressing screw; 16. Spring; 17. First driving device; 18. Knife material; 19. Lifting member; 191. Inclined surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0021] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct communication or an indirect communication through an intermediate medium. Among them, "fixation" means that they are connected to each other and the relative positional relationship after connection remains unchanged. The orientation terms mentioned in the embodiments of the present utility model, such as "inside", "outside", "top", "bottom", etc., are only references to the direction of the attached drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present utility model, 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 on the embodiments of the present utility model.

[0022] In the embodiments of the present utility model, 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 one or more of such features.

[0023] In the embodiments of the present utility model, "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this text generally represents an "or" relationship between the associated objects before and after.

[0024] The reference to "one embodiment" or "some embodiments" etc. described in this specification means that a specific feature, structure, or characteristic described in combination with the embodiment is included in one or more embodiments of the present utility model. Thus, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "comprise", "include", "have" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] Such as Figures 1 - 5As shown in the figure, the utility model provides a die-cutting knife positive and negative clamping bridge die, which is characterized in that it includes: a bottom plate assembly 10, a lower punching needle assembly 13 is arranged in the bottom plate assembly 10, the lower punching needle assembly 13 is connected with a first driving device 17, the first driving device 17 drives the end of the lower punching needle assembly 13 to extend out or retract into the bottom plate assembly 10, a guide plate 11 is further arranged above the bottom plate assembly 10, the guide plate 11 is arranged at an interval with the bottom plate assembly 10 for the knife material 18 to pass through, an upper punching needle assembly 11 is arranged in the guide plate 11, the upper punching needle assembly 11 is connected with a second driving device, the second driving device drives the end of the upper punching needle assembly 11 to extend out or retract into the guide plate 11, when the bridge position of the knife material 18 moves to a predetermined position, the first driving device 17 drives the end of the lower punching needle assembly 13 to extend out of the bottom plate assembly 10, and the second driving device drives the end of the upper punching needle assembly 11 to extend out of the guide plate 11 to punch out opposite clamping positions on both sides of the bridge position;

[0026] Specifically, the first driving device 17 and the second driving device can be a motor or a motor plus a lead screw or a cylinder. The lower punching needle assembly 13 is connected with the first driving device 17. Under the drive of the first driving device 17, the end of the lower punching needle assembly 13 extends out of the top surface of the bottom plate assembly 10. Similarly, for the upper punching needle assembly 11, when the bridge position of the knife material 18 moves between the lower punching needle assembly 13 and the upper punching needle assembly 11, the first driving device 17 drives the end of the lower punching needle assembly 13 to extend out of the bottom plate assembly 10, and the second driving device drives the upper punching needle assembly 11 to extend out of the guide plate 11 and press on the knife material 18. The lower punching needle assembly 13 and the upper punching needle assembly 11 respectively punch out upturned clamping positions on the bridge position of the knife material 18. One of the two clamping positions upturns upward and the other upturns obliquely downward, and the upturned ends of the two clamping positions are located at the same end. After the knife material 18 is cut and inserted into the die-cutting plate, the two clamping positions can cooperate with the side walls of the die-cutting plate groove to clamp the knife material 18, thereby realizing the fixation of the knife material 18 and the die-cutting plate, eliminating the need for manual gluing, reducing labor costs, and improving the installation efficiency at the same time.

[0027] Further, the bottom plate assembly 10 includes: a base 101, a concave position 102 is arranged at one end of the base 101, a back plate 103 is fixedly arranged in the concave position 102, one end of the guide plate 11 is fixedly connected with the base 101, the top surface of the back plate 103 is arranged at an interval with the bottom surface of the guide plate 11, a vertical sliding hole 104 is arranged in the back plate 103, and the lower punching needle assembly 13 is slidably arranged in the vertical sliding hole 104;

[0028] Specifically, a recess 102 is formed on one side of the base 101. A back plate 103 is disposed in the recess 102. The guide plate 11 is located above the base 101 and the back plate 103, and there is a gap between the back plate 103 and the guide plate 11 for the tool material 18 to pass through. A vertical sliding hole 104 corresponding to the height direction of the back plate 103 is formed in the back plate 103. The lower punch needle assembly 13 is slidably disposed in the vertical sliding hole 104. At this time, the first driving device 17 can be located below the lower punch needle assembly 13 and directly drive the end of the lower punch needle assembly 13 to extend out of the back plate 103 for punching the clamping position. Wherein, the gap between the back plate 103 and the guide plate 11 can also take out the tool material 18 through the gap after the material is clamped.

[0029] Further, in this embodiment, a chute 105 is further formed in the bottom surface of the back plate 103. The chute 105 is perpendicular to the vertical sliding hole 104. A lifting member 19 is slidably disposed in the chute 105. One side of the lifting member 19 is provided with an inclined surface 191 inclined in the first direction. The lower punch needle assembly 13 corresponds to the lifting member 19, and the bottom end of the lower punch needle assembly 13 contacts the lifting member 19. The first driving device 17 is connected to one end of the lifting member 19. The lifting member 19 jacks up the lower punch needle assembly 13 through the inclined surface 191 under the drive of the first driving device 17, so that the top end of the lower punch needle assembly 13 extends out of the back plate 103.

[0030] Specifically, a chute 105 is further formed in the bottom surface of the back plate 103 along the length direction of the back plate 103. A lifting member 19 is slidably disposed in the chute 105. One side of the lifting member 19 is provided with an inclined surface 191 inclined in the first direction. The lifting member 19 corresponds to the lower punch needle assembly 13. The bottom end of the lower punch needle assembly 13 contacts the inclined surface 191. One end of the lifting member 19 is connected to the first driving device 17. The first driving device 17 drives the lifting member 19 to move in the chute 105. Through the arrangement of the inclined surface 191, the lifting member 19 causes the lower punch needle assembly 13 to be jacked up, so that the end of the lower punch needle assembly 13 extends out of the back plate 103. After the punching is completed, the first driving device 17 drives the lifting member 19 to move back. At this time, the lower punch needle assembly 13 will fall by itself under the action of gravity after losing the support of the inclined surface 191 of the lifting member 19, so that the end of the lower punch needle assembly 13 retracts into the back plate 103. In this way, due to the arrangement of the lifting member 19, the first driving device 17 can be located at one end of the bottom plate assembly 10 instead of below the bottom plate assembly 10 to adapt to the existing production line and facilitate the installation of the card bridge mold.

[0031] Further, the lower punch needle assembly 13 includes: a first punch needle 131. The first punch needle 131 is located in the vertical sliding hole 104. An inclined punching surface is provided on the top surface of the first punch needle 131. The bottom end of the first punch needle 131 is adapted to the inclined surface 191.

[0032] Specifically, the lower punch assembly 13 includes: a first punch 131 which is slidably arranged in the vertical slide hole 104. The bottom end of the first punch 131 is adapted to and abuts against the inclined surface 191 of the lifting member 19. For facilitating punching out a clamping position on the tool material 18, the top end of the first punch 131 is provided with an inclined punching and clamping surface. By means of the inclined punching and clamping surface, a clamping position with the same slope and direction is punched out in the bridge position of the tool material 18, and one end of the clamping position is still in a connected state with the tool material 18 and is not completely cut off.

[0033] Further, the lower punch assembly 13 further includes: a blanking punch 132 which is slidably arranged in the back plate 103. On the other side of the lifting member 19, there is also provided an inclined surface 191 which is inclined in a second direction, and the second direction is opposite to the first direction. The blanking punch 132 corresponds to the upper punch assembly 11.

[0034] Specifically, since the tool material 18 still needs to be conveyed to subsequent processes after the clamping position is punched out, and the clamping position punched out by the upper punch assembly 11 is downward, to prevent the downward clamping position from getting stuck with the back plate 103 during conveying, the lower punch assembly 13 further includes: a blanking punch 132 which is also slidably arranged in the back plate 103 and can slide vertically in the back plate 103. To drive the movement of the blanking punch 132, on the other side of the lifting member 19, there is provided an inclined surface 191 which is inclined in a second direction, where the first direction is opposite to the second direction. The bottom end of the blanking punch 132 contacts the inclined surface 191, such that when the lifting member 19 moves driven by the first driving device 17, the movement of the first punch 131 is opposite to the movement of the blanking punch 132, that is, when the end of the first punch 131 extends, the end of the blanking punch 132 retracts. After the first punch 131 finishes punching, during the retraction process of the lifting member 19, the blanking punch 132 will be lifted to make its end extend, lifting the downward clamping position to make the clamping position higher than the upper surface of the back plate 103, thereby preventing the clamping position from getting stuck with the back plate 103 to ensure the smooth conveying of the tool material 18.

[0035] Further, at least one lower pin 14 is passed through the back plate 103, and the lower pin 14 passes through the lower punch assembly 13, and the lower pin 14 can move up and down in the back plate 103 and the lower punch assembly 13.

[0036] Further, on both sides of the lower punch assembly 13 on the top surface of the back plate 103, there are respectively provided lower pressing screws 15 which correspond to the lower pins 14. At the bottom of the lower pressing screws 15, there are springs 16 which contact the lower pins 14.

[0037] Specifically, although the first punch pin 131 can fall by its own gravity after losing the extrusion of the lifting member 19, in order to prevent the first punch pin 131 from getting stuck, at least one lower pin 14 is inserted through the back plate 103. The lower pin 14 passes through the first punch pin 131 and can move up and down in the back plate 103 and the lower pin 14. At the same time, lower pressing screws 15 are respectively fixed on both sides of the lower punch assembly 13. A spring 16 is connected to the bottom end of the lower pressing screw 15, and the other end of the spring 16 contacts the lower pin 14. Under the action of the spring 16, the lower pin 14 will press down the lower pin 14, and the lower pin 14 will press the first punch pin 131 to fit the inclined surface 191 of the lifting member 19. With the cooperation of the spring 16 and the lower pin 14, the first punch pin 131 can be prevented from getting stuck in the vertical sliding hole 104.

[0038] It should be noted that since there is also a knockout punch pin 132, in order to prevent the knockout punch pin 132 from getting stuck, there are two lower pins 14. One passes through the first punch pin 131, and the other passes through the knockout punch pin 132. And the lower pressing screws 15 and the springs 16 are also provided, so that the bottom end of the knockout punch pin 132 is always in contact with the lifting member 19.

[0039] Furthermore, the upper punch assembly 11 includes: a blade 121, the blade 121 is slidably arranged at one end of the guide plate 11, a second punch pin 124 is arranged inside the blade 121, an adjusting screw 122 is arranged at the top of the blade 121, the adjusting screw 122 is used to adjust the extending length of the second punch pin 124, a fixing set screw 123 is arranged on one side of the blade 121 for fixing the second punch pin 124, and an avoidance position 125 is arranged at the bottom end of the blade 121 for the lower punch assembly 13 to punch out a clamping position;

[0040] Specifically, the upper punching needle assembly 11 includes: a blade 121 which is slidably arranged in the guide plate 11 and can slide vertically in the guide plate 11. The top of the blade 121 is connected to a second driving device. A second punching needle 124 is installed in the blade 121. The tail end of the second punching needle 124 is also connected with an adjusting screw 122 which is used to adjust the length of the head end of the second punching needle 124 extending out of the blade 121 according to the punching depth. On one side of the blade 121, there is also a fixing set screw 123 which is used to fix the second punching needle 124 after the extending length of the second punching needle 124 is adjusted to prevent the displacement of the second punching needle 124. When punching is required, the second driving device will drive the blade 121 to move so that it presses on the knife material 18, and at the same time, the second punching needle 124 punches out a clamping position on the knife material 18. Meanwhile, the first driving device 17 drives the first punching needle 131 to extend out of the back plate 103 to synchronously punch out a clamping position on the knife material 18. Among them, the second punching needle 124 corresponds to the ejector punching needle 132. Due to the setting of the ejector punching needle 132 and its being in a descending state when the first punching needle 131 extends, the hole position of the ejector punching needle 132 is used as an avoidance hole so that the second punching needle 124 can smoothly punch out the clamping position. However, the extension of the first punching needle 131 will push against the blade 121. To enable the first punching needle 131 to punch out the clamping position, an avoidance hole is opened at the position corresponding to the first punching needle 131 on the blade 121. When the first punching needle 131 extends, the end of the first punching needle 131 extends into the avoidance hole to smoothly punch out the clamping position.

[0041] In summary, through the settings of the upper punching needle assembly and the lower punching needle assembly, the present application realizes punching out clamping positions on the knife material bridge position, uses the clamping positions to be fixedly connected with the die cutting plate, omits the process of manual gluing and the time for gluing, reduces the labor cost and material cost, improves the installation efficiency, and the die structure is simple, with low cost, adapts to the existing production line, and has strong applicability.

[0042] The present utility model is not limited only to what is described in the specification and embodiments. Therefore, for those skilled in the art, additional advantages and modifications can be easily achieved. Thus, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present utility model is not limited to specific details, representative devices, and the illustrated examples shown and described here.

Claims

1. A die-cutting knife positive and negative clamping bridge mold, characterized in that, Comprising: A bottom plate assembly, in which a lower punching needle assembly is provided. The lower punching needle assembly is connected to a first driving device, and the first driving device drives the end of the lower punching needle assembly to extend out of or retract into the bottom plate assembly. Above the bottom plate assembly, there is also a guiding plate which is spaced from the bottom plate assembly for the tool material to pass through. An upper punching needle assembly is provided in the guiding plate. The upper punching needle assembly is connected to a second driving device, and the second driving device drives the end of the upper punching needle assembly to extend out of or retract into the guiding plate. When the bridge position of the tool material moves to a predetermined position, the first driving device drives the end of the lower punching needle assembly to extend out of the bottom plate assembly, and the second driving device drives the end of the upper punching needle assembly to extend out of the guiding plate to punch opposite clamping positions on both sides of the bridge position.

2. The die-cutting knife positive and negative clamping bridge mold according to claim 1, wherein The bottom plate assembly includes: a base, one end of the base is provided with a recess, a back plate is fixedly provided in the recess, one end of the guiding plate is fixedly connected to the base, the top surface of the back plate is spaced from the bottom surface of the guiding plate, and a vertical sliding hole is provided in the back plate, and the lower punching needle assembly is slidably arranged in the vertical sliding hole.

3. The die-cutting knife positive and negative clamping bridge die according to claim 2, characterized in that, A chute is further opened in the bottom surface of the back plate, the chute is perpendicular to the vertical sliding hole, a lifting member is slidably arranged in the chute, one side of the lifting member is provided with an inclined surface inclined in a first direction, the lower punching needle assembly corresponds to the lifting member, and the bottom end of the lower punching needle assembly contacts the lifting member. The first driving device is connected to one end of the lifting member, and the lifting member jacks up the lower punching needle assembly through the inclined surface under the drive of the first driving device, so that the top end of the lower punching needle assembly extends out of the back plate.

4. The die-cutting knife positive and negative clamping bridge die according to claim 3, wherein, The lower punching needle assembly includes: a first punching needle located in the vertical sliding hole, an inclined punching and clamping surface is provided on the top surface of the first punching needle, and the bottom end of the first punching needle is adapted to the inclined surface.

5. The die-cutting knife positive and negative clamping bridge die according to claim 4, characterized in that The lower punching needle assembly further includes: a blanking punching needle slidably arranged in the back plate. The other side of the lifting member is also provided with an inclined surface inclined in a second direction, and the second direction is opposite to the first direction. The blanking punching needle corresponds to the upper punching needle assembly.

6. The die-cutting knife positive and negative clamping bridge mold according to claim 2, characterized in that, At least one lower pin is also passed through the back plate, the lower pin passes through the lower punching needle assembly, and the lower pin can move up and down in the back plate and the lower punching needle assembly.

7. The die-cutting tool positive and negative clamping bridge mold according to claim 6, characterized in that, On the top surface of the back plate, pressing screws are respectively arranged on both sides of the lower punching needle assembly, the pressing screws correspond to the lower pins, springs are arranged at the bottoms of the pressing screws, and the springs contact the lower pins.

8. The die-cutting knife positive and negative clamping bridge mold according to claim 1, characterized in that The upper punching needle assembly includes: a blade slidably arranged at one end of the guiding plate, a second punching needle is arranged in the blade, an adjusting screw is arranged at the top of the blade for adjusting the extending length of the second punching needle, a fixing set screw is arranged on one side of the blade for fixing the second punching needle, and an avoidance position is arranged at the bottom end of the blade for the lower punching needle assembly to punch out the clamping position.

Images