Cable bridge punching machine

Abstract

The utility model provides a cable bridge punching machine which comprises a feeding conveying device, a punching mechanism and a discharging conveying device which are sequentially arranged, the punching mechanism comprises a machine frame, a punching bottom die, a guide column, a guide plate, a lifting driving piece, a guide shaft, a pressing plate, an elastic piece and a punching knife, and the punching bottom die is fixed on the machine frame. The four guide columns are perpendicularly fixed to the rack and located above the punching bottom die, the guide plate sleeves the four guide columns in a lifting sliding mode, the lifting driving part is installed on the rack and connected with the guide plate, four guide shafts are fixed to the bottom of the guide plate, and the pressing plate sleeves the four guide shafts in a lifting sliding mode and located above the punching bottom die. The pressing plate is supported by the bottom ends of the four guide shafts, the guide shafts are sleeved with the elastic pieces, the two ends of the elastic pieces abut against the portion between the pressing plate and the guide plate, the stamping knife is fixed to the bottom of the guide plate, and punched holes corresponding to the stamping knife are formed in the punching bottom die and the pressing plate. According to the cable bridge punching machine, the punching efficiency and the operation convenience can be improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cable tray manufacturing, and particularly relates to a cable tray punching machine. Background Art

[0002] As an indispensable infrastructure in industries such as electric power and communication, the processing quality and efficiency of cable trays are directly related to the overall progress and cost of engineering projects. In the production process of cable trays, punching is a crucial process, which is directly related to the load-bearing capacity, installation convenience and overall aesthetics of the trays. At present, there are various types of cable tray punching machines on the market, and these devices meet the production requirements of cable trays to a certain extent. However, with the rapid development of the cable tray industry, the performance requirements for punching machines are getting higher and higher, and the following deficiencies gradually emerge in the existing technologies: Most traditional punching machines adopt manual or semi-automatic operation methods, which not only have high labor intensity and low efficiency, but also are prone to human operation errors, affecting the processing quality. Content of the Utility Model

[0003] In view of the above, the utility model provides a cable tray punching machine to improve the punching efficiency and operation convenience and reduce the labor intensity.

[0004] The technical solution of the utility model:

[0005] The utility model provides a cable tray punching machine, which includes a feeding conveying device, a punching mechanism and a discharging conveying device arranged in sequence. The feeding conveying device is used to carry a metal plate into the punching mechanism. Two sets of punching mechanisms are arranged oppositely on both sides of the feeding conveying device to punch the two sides of the metal plate simultaneously. The punching mechanism includes a frame, a punching bottom die, guide columns, a guide plate, a lifting driving part, guide shafts, a pressing plate, an elastic part and a punching knife. The punching bottom die is fixed on the frame. Four guide columns are vertically fixed on the frame and are located above the punching bottom die. The guide plate is sleeved on the four guide columns in a liftable and slidable manner. The lifting driving part is installed on the frame and is connected with the guide plate to drive its liftable and slidable movement. Four guide shafts are fixed at the bottom of the guide plate. The pressing plate is sleeved on the four guide shafts in a liftable and slidable manner and is located above the punching bottom die. The bottom ends of the four guide shafts support the pressing plate. The elastic part is sleeved on the outer periphery of the guide shaft and its two ends are abutted between the pressing plate and the guide plate. The punching knife is fixed at the bottom of the guide plate. Punching holes corresponding to the punching knife are opened on both the punching bottom die and the pressing plate for the punching knife to pass through so as to punch the metal plate pressed by the pressing plate on the punching bottom die. The discharging conveying device is used to convey the punched metal plate out.

[0006] Further, the guide plate and the pressing plate are arranged in parallel, the outer dimension of the guide plate is larger than that of the pressing plate, and the four guide shafts are located in the square space formed by the enclosure of the four guide columns.

[0007] Further, a first linear bearing is installed on the guiding plate, and the first linear bearing is sleeved on the guide post in a liftable and slidable manner.

[0008] Further, a second linear bearing is installed on the pressing plate, and the second linear bearing is sleeved on the guide shaft in a liftable and slidable manner.

[0009] Further, the elastic member is a spring.

[0010] Further, a waste hopper is arranged on the frame below the punching bottom die.

[0011] Further, it further includes a width adjustment mechanism for adjusting the distance between the two punching mechanisms.

[0012] Further, the width adjustment mechanism includes a slide rail, a bearing seat, a lead screw and an adjustment motor. Two slide rails are horizontally fixed on the ground. The bottoms of the two punching mechanisms are slidably arranged on the two slide rails through sliders. Two bearing seats are respectively fixedly arranged between the two ends of the two slide rails. The two ends of the lead screw are rotatably installed on the two bearing seats. The lead screw has two thread segments with opposite thread directions, and respectively threadedly penetrate through the nut sleeves of the two punching mechanisms. The adjustment motor is fixed on the bearing seat, and the output shaft of the adjustment motor is in transmission connection with one end of the lead screw.

[0013] Further, the feeding conveying device includes a support platform, feeding pinch rollers and feeding side guiding rollers. Two feeding pinch rollers are rotatably mounted on the support platform and close to one end of the punching mechanism. A feeding motor for driving the feeding pinch rollers to rotate is installed on the support platform. A plurality of feeding side guiding rollers are arranged at intervals on both sides of the support platform to form a guiding channel for guiding the metal plate to advance.

[0014] Further, the discharging conveying device includes a roller platform, discharging pinch rollers and discharging side guiding rollers. Two discharging pinch rollers are rotatably mounted on the roller platform and close to one end of the punching mechanism. A discharging motor for driving the discharging pinch rollers to rotate is installed on the roller platform. A plurality of discharging side guiding rollers are arranged at intervals on both sides of the roller platform to form a guiding channel for guiding the metal plate to advance.

[0015] The cable tray punching machine provided by the present utility model has remarkable beneficial effects compared with the prior art, which are specifically reflected in the following aspects:

[0016] First, improve production efficiency: By designing two sets of punching mechanisms arranged oppositely, the punching operation can be carried out on both sides of the metal plate simultaneously, realizing synchronous processing on both sides, greatly shortening the production cycle, and significantly improving the production efficiency.

[0017] II. Enhanced processing precision: The punching mechanism adopts a precise guiding system and a lifting drive device, ensuring the stability and accuracy of the punching tool during the punching process, effectively reducing the punching size deviation, improving the processing precision, and meeting the requirements of high-precision processing of cable trays.

[0018] III. Improved equipment stability: By using the cooperation of guide posts, guide shafts and elastic components, a stable guiding and buffering mechanism is formed, effectively alleviating the impact and vibration during the punching process, and enhancing the overall stability and service life of the equipment.

[0019] IV. Reduced labor intensity: The automatic feeding, punching and discharging of metal plates are realized, reducing manual intervention, lowering the labor intensity of operators, and improving production safety at the same time.

[0020] The preferred implementation scheme and its beneficial effects of the present utility model will be further described in detail in combination with specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present utility model and form a part of the specification, and are used to explain the present utility model together with the following specific embodiments, but should not limit the present utility model. In the drawings:

[0022] Figure 1 is the front view structural schematic diagram of the cable tray punching machine of the present utility model;

[0023] Figure 2 is the side view structural schematic diagram of the cable tray punching machine of the present utility model.

[0024] Explanation of the reference numerals in the drawings: Feeding conveying device 1, punching mechanism 2, discharging conveying device 3, frame 21, punching bottom die 22, guide post 23, guiding plate 24, lifting drive member 25, guide shaft 26, pressing plate 27, elastic member 28, punching tool 29, waste hopper 20, width adjusting mechanism 4, slide rail 41, bearing seat 42, lead screw 43, adjusting motor 44, support platform 11, feeding pinch rollers 12, feeding side guiding rollers 13, roller platform 31, discharging pinch rollers 32, discharging side guiding rollers 33. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The following will describe in detail the specific embodiments of the present utility model in conjunction with the drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present utility model and are not used to limit the present utility model.

[0026] Please refer to Figure 1 and Figure 2, the present utility model provides a cable tray punching machine, which includes a feeding conveying device 1, a punching mechanism 2 and a discharging conveying device 3 arranged in sequence. The feeding conveying device 1 is used to carry a metal plate into the punching mechanism 2. Two sets of punching mechanisms 2 are oppositely arranged on both sides of the feeding conveying device 1 to punch the two sides of the metal plate simultaneously. The punching mechanism 2 includes a frame 21, a punching bottom die 22, guide columns 23, a guide plate 24, a lifting driving member 25, guide shafts 26, a pressing plate 27, an elastic member 28 and a punching knife 29. The punching bottom die 22 is fixed on the frame 21. Four guide columns 23 are vertically fixed on the frame 21 and are located above the punching bottom die 22. The guide plate 24 is slidably sleeved on the four guide columns 23 in a liftable manner. The lifting driving member 25 is installed on the frame 21 and is connected to the guide plate 24 to drive its liftable sliding. Four guide shafts 26 are fixed to the bottom of the guide plate 24. The pressing plate 27 is slidably sleeved on the four guide shafts 26 and is located above the punching bottom die 22, and the bottom ends of the four guide shafts 26 support the pressing plate 27. The elastic member 28 is sleeved on the outer periphery of the guide shaft 26 and its two ends abut between the pressing plate 27 and the guide plate 24. The punching knife 29 is fixed to the bottom of the guide plate 24, and punching holes corresponding to the punching knife 29 are opened on both the punching bottom die 22 and the pressing plate 27 for the punching knife 29 to pass through so as to punch the metal plate pressed by the pressing plate 27 on the punching bottom die 22. The discharging conveying device 3 is used to convey the punched metal plate out.

[0027] When the feeding conveying device 1 carries the metal plate into the punching position of the punching mechanism 2, the feeding conveying device 1 stops to prepare for punching one end of the metal plate; the lifting driving member 25 drives the guide plate 24 to descend along the guide columns 23, driving the punching knife 29 and the pressing plate 27 to descend; when the pressing plate 27 contacts the punching bottom die 22, the elastic member 28 is compressed, and the punching knife 29 continues to descend along the punching hole of the pressing plate 27 to the metal plate on the punching bottom die 22 to achieve punching. The lifting driving member 25 drives the guide plate 24 to ascend along the guide columns 23, so that the pressing plate 27 is separated from the metal plate; the feeding conveying device 1 and the discharging conveying device 3 are started to continue conveying. When the other end of the metal plate is fed into the punching position of the punching mechanism 2, the feeding conveying device 1 and the discharging conveying device 3 stop, and the lifting driving member 25 presses down so that the punching knife 29 punches the other end of the metal plate. Then, the discharging conveying device 3 conveys the punched metal plate out.

[0028] The cable tray punching machine provided by the present utility model has significant beneficial effects compared with the prior art, which are specifically reflected in the following aspects:

[0029] I. Improve production efficiency: By designing two sets of oppositely arranged punching mechanisms, punching operations can be carried out on both sides of the metal plate simultaneously, realizing synchronous processing on both sides, greatly shortening the production cycle and significantly improving the production efficiency.

[0030] II. Enhanced processing precision: The punching mechanism adopts a precise guiding system and a lifting drive device, ensuring the stability and accuracy of the punching tool during the punching process, effectively reducing the punching size deviation, improving the processing precision, and meeting the requirements of high-precision processing of cable trays.

[0031] III. Improved equipment stability: Through the combined use of guide columns, guide shafts, and elastic components, a stable guiding and buffering mechanism is formed, effectively alleviating the impact and vibration during the punching process, and enhancing the overall stability and service life of the equipment.

[0032] IV. Reduced labor intensity: Automatic feeding, punching, and discharging of metal plates are realized, reducing manual intervention, lowering the labor intensity of operators, and improving production safety at the same time.

[0033] In this embodiment, the guide plate 24 and the pressing plate 27 are arranged in parallel. The outer dimension of the guide plate 24 is larger than that of the pressing plate 27. The four guide shafts 26 are located within the square space formed by enclosing the four guide columns 23. The parallel arrangement of the guide plate 24 and the pressing plate 27 can ensure that during the punching process, the guide plate can smoothly guide the punching tool to descend and cooperate with the pressing plate to precisely punch the metal plate. At the same time, the outer dimension of the guide plate is larger than that of the pressing plate, and such a design can provide a larger support area, enhancing the stability and rigidity of the guide plate and reducing the vibration and offset generated during the punching process.

[0034] In this embodiment, a first linear bearing is installed on the guide plate 24, and the first linear bearing is slidably sleeved on the guide column 23 in a liftable manner. A second linear bearing is installed on the pressing plate 27, and the second linear bearing is slidably sleeved on the guide shaft 26 in a liftable manner.

[0035] In this embodiment, the elastic component 28 adopts a spring.

[0036] To facilitate the collection of waste materials after punching, a waste hopper 20 is provided on the frame 21 below the punching bottom die 22.

[0037] To facilitate the punching of metal plates with different widths, the cable tray punching machine further includes a width adjustment mechanism 4 for adjusting the distance between the two sets of punching mechanisms 2. The width adjustment mechanism 4 includes a slide rail 41, a bearing seat 42, a lead screw 43, and an adjustment motor 44. The two slide rails 41 are horizontally fixed to the ground, and the bottoms of the two sets of punching mechanisms 2 are slidably arranged on the two slide rails 41 through sliders. The two bearing seats 42 are respectively fixedly arranged between the two ends of the two slide rails 41. The two ends of the lead screw 43 are rotatably installed on the two bearing seats 42. The lead screw 43 has two thread segments with opposite thread directions and respectively threadedly penetrate through the nut sleeves of the two sets of punching mechanisms 2. The adjustment motor 44 is fixed on the bearing seat 42, and the output shaft of the adjustment motor 44 is in transmission connection with one end of the lead screw 43. It can be understood that the adjustment motor 44 can also be replaced by a handwheel.

[0038] In this embodiment, the feeding and conveying device 1 includes a support platform 11, feeding pinch rollers 12 and feeding side guide rollers 13. The two feeding pinch rollers 12 are rotatably mounted on the support platform 11 and close to one end of the punching mechanism 2. A feeding motor for driving the rotation of the feeding pinch rollers 12 is installed on the support platform 11. A plurality of feeding side guide rollers 13 are arranged at intervals on both sides of the support platform 11 to form a guide channel for guiding the metal plate to move forward.

[0039] In this embodiment, the discharging and conveying device 3 includes a roller platform 31, discharging pinch rollers 32 and discharging side guide rollers 33. The two discharging pinch rollers 32 are rotatably mounted on the roller platform 31 and close to one end of the punching mechanism 2. A discharging motor for driving the rotation of the discharging pinch rollers 32 is installed on the roller platform 31. A plurality of discharging side guide rollers 33 are arranged at intervals on both sides of the roller platform 31 to form a guide channel for guiding the metal plate to move forward.

[0040] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is 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 to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying importance; the terms "bottom surface" and "top surface", "inner" and "outer" respectively refer to the geometric directions towards or away from a specific component.

[0041] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the connection inside two elements. 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 situations. In addition, in the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0042] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cable tray punching machine, characterized in that: The invention comprises a feeding conveying device (1), a punching mechanism (2) and a discharging conveying device (3) which are arranged in sequence. The feeding conveying device (1) is used to carry a metal plate and feed it into the punching mechanism (2). Two sets of punching mechanisms (2) are arranged on both sides of the feeding conveying device (1) to punch holes on both sides of the metal plate at the same time. The punching mechanism (2) comprises a frame (21), a punching bottom die (22), a guide column (23), a guide plate (24), a lifting drive member (25), a guide shaft (26), a pressing plate (27), an elastic member (28) and a punching knife (29). The punching bottom die (22) is fixed on the frame (21). Four guide columns (23) are vertically fixed on the frame (21) and are located above the punching bottom die (22). The guide plate (24) is slidably mounted on the four guide columns (23) in a lifting and sliding manner. The lifting drive member (25) is provided with a plurality of guide columns (23) and a plurality of guide columns (24). The guide plate (24) is provided with a plurality of guide shafts (26) at the bottom of the guide plate (24). The pressing plate (27) is sleeved on the four guide shafts (26) and is located above the punching bottom die (22). The bottom ends of the four guide shafts (26) support the pressing plate (27). The elastic member (28) is sleeved on the outer periphery of the guide shafts (26) and its two ends are abutted between the pressing plate (27) and the guide plate (24). The punching knife (29) is fixed on the bottom of the guide plate (24). The punching bottom die (22) and the pressing plate (27) are provided with punching holes corresponding to the punching knife (29) so that the punching knife (29) can pass through and punch the metal plate pressed by the pressing plate (27) on the punching bottom die (22). The discharge conveying device (3) is used to convey the punched metal plate out.

2. The cable tray punching machine according to claim 1, characterized in that: The guide plate (24) and the pressing plate (27) are arranged in parallel, the outer dimensions of the guide plate (24) are larger than those of the pressing plate (27), and the four guide shafts (26) are located in a square space enclosed by the four guide pillars (23).

3. The cable tray punching machine according to claim 1, characterized in that: A first linear bearing is mounted on the guide plate (24), and the first linear bearing is sleeved on the guide column (23) in a manner that it can be lifted and slidably mounted.

4. The cable tray punching machine according to claim 1, characterized in that: A second linear bearing is mounted on the pressing plate (27), and the second linear bearing is sleeved on the guide shaft (26) in a manner that allows the second linear bearing to be lifted and slidably mounted thereon.

5. The cable tray punching machine according to claim 1, characterized in that: The elastic member (28) is a spring.

6. The cable tray punching machine according to claim 1, characterized in that: A waste hopper (20) is arranged on the frame (21) below the punching bottom die (22).

7. The cable tray punching machine according to claim 1, characterized in that: It also includes a width adjustment mechanism (4) for adjusting the distance between the two sets of punching mechanisms (2).

8. The cable tray punching machine according to claim 7, characterized in that: The width adjustment mechanism (4) comprises a slide rail (41), a bearing seat (42), a screw rod (43) and an adjustment motor (44); the two slide rails (41) are horizontally fixed to the ground; the bottoms of the two sets of punching mechanisms (2) are slidably arranged on the two slide rails (41) through sliders; the two bearing seats (42) are respectively fixedly arranged between the two ends of the two slide rails (41); the two ends of the screw rod (43) are rotatably mounted on the two bearing seats (42); the screw rod (43) has two threaded sections with opposite thread directions, which are respectively screwed to the nut sleeves that penetrate the two sets of punching mechanisms (2); the adjustment motor (44) is fixed to the bearing seat (42); and the output shaft of the adjustment motor (44) is drivingly connected to one end of the screw rod (43).

9. The cable tray punching machine according to claim 1, characterized in that: The feed conveying device (1) comprises a support platform (11), a feed pinch roller (12) and a feed side guide roller (13); the two feed pinch rollers (12) are rotatably mounted on the support platform (11) and close to one end of the punching mechanism (2); a feed motor for driving the feed pinch rollers (12) to rotate is installed on the support platform (11); and a plurality of feed side guide rollers (13) are arranged at intervals on both sides of the support platform (11) to form a guide channel for guiding the metal plate to move forward.

10. The cable tray punching machine according to claim 1, characterized in that: The discharging conveying device (3) comprises a roller platform (31), a discharging pinch roller (32) and a discharging side guide roller (33). The two discharging pinch rollers (32) are rotatably mounted on the roller platform (31) and close to one end of the punching mechanism (2). A discharging motor for driving the discharging pinch rollers (32) to rotate is installed on the roller platform (31). A plurality of discharging side guide rollers (33) are arranged at intervals on both sides of the roller platform (31) to form a guide channel for guiding the metal plate to move forward.

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