CN117697865A - Punching device and punching equipment - Google Patents

Abstract

The invention discloses a punching device and punching equipment, wherein the punching device comprises an upper die and a lower die. The upper die is provided with punching needles. The lower die is detachably connected to the upper die, the lower die comprises a fixed die and a movable die, the fixed die is provided with a first bearing surface and a channel communicated with the first bearing surface, the movable die is movably connected with the fixed die, the movable die is provided with a boss movably arranged in the channel, the boss is provided with a second bearing surface, the first bearing surface, the second bearing surface and the channel form a bearing part of the adapting pocket, and the bearing part is provided with a forming hole. The movable die moves relative to the fixed die and drives the boss to slide in the channel so as to enable the second bearing surface to rise or fall, and the punching holes punch the carrier tape positioned on the bearing part. The technical scheme of the invention has the advantages of adapting the punching device or equipment to various carrier tapes and saving the production cost of the carrier tapes.

Description

Punching device and punching equipment

Technical Field

The invention relates to the technical field of carrier tape production equipment, in particular to a punching device and punching equipment.

Background

The carrier tape is a tape-shaped product applied to the field of electronic packaging, and has a specific thickness, and pockets for holding electronic components and holes for indexing and positioning are equidistantly distributed in the length direction of the carrier tape.

In the carrier tape production process, the processes of molding, punching, cutting and the like are needed to be sequentially carried out. After the carrier tape is formed through the forming process, pockets are formed on the material tape, and then the carrier tape enters punching equipment for punching processing. However, the punching device is generally only suitable for one type of carrier tape, and if other types of carrier tapes need to be punched, another punching device or a corresponding device of the punching device needs to be used, so that a plurality of production lines or devices are needed when different types of carrier tapes are produced, and the cost is high.

Disclosure of Invention

The invention mainly aims to provide a punching device and punching equipment, and aims to solve the problem that a plurality of production lines or devices are needed when carrier tapes of different types are produced.

To achieve the above object, the present invention provides a punching device including:

the upper die is provided with punching needles; and

the lower die is detachably connected to the upper die and comprises a fixed die and a movable die, the fixed die is provided with a first bearing surface and a channel communicated with the first bearing surface, the movable die is movably connected with the fixed die and is provided with a boss movably arranged in the channel, the boss is provided with a second bearing surface, the first bearing surface, the second bearing surface and the channel form a bearing part matched with the pocket, and the bearing part is provided with a forming hole;

the movable die moves relative to the fixed die and drives the boss to slide in the channel so as to enable the second bearing surface to rise or fall, and the punching holes punch the carrier tape positioned on the bearing part.

Optionally, the movable mold includes:

the sliding block is provided with the boss, the boss is connected to the channel in a sliding manner, and the boss is provided with the second bearing surface; and

one end of the adjusting structure is connected with the fixed mould in a sliding way, and the other end of the adjusting structure is connected with the sliding block;

the adjusting structure drives the sliding block to move relative to the fixed die and drives the boss to slide in the channel so as to enable the second bearing surface to rise or fall.

Optionally, the adjusting structure includes:

a driving member slidably coupled to the stationary mold; and

the base, the sliding block connect in the base, the driving piece connect in the base, wherein, the drive drives the direction of movement that bears and the sliding block are the contained angle setting in the direction of movement of passageway.

Optionally, the fixed mould is provided with a movable cavity communicated with the channel, the movable cavity is provided with a first sliding groove, the base is provided with a first sliding table, and the first sliding table is matched with the first sliding groove so that the base moves upwards along the inclined direction.

Optionally, the upper side of base still is equipped with the second spout, the sliding block is equipped with the second slip table, the second spout with the cooperation of second slip table makes sliding block sliding connection in the base.

Optionally, a third sliding groove is further formed in the side face of the base, a third sliding table is arranged on the driving piece, and the third sliding groove is matched with the third sliding table so that the adjusting structure is in sliding connection with the base.

Optionally, the fixed mould is provided with a plurality of channels, the channels are arranged at intervals and are communicated with the first bearing surface, the sliding block is provided with a plurality of bosses, the bosses are arranged at intervals, and one boss is correspondingly and slidably connected with one channel.

Optionally, the forming hole comprises a first hole and a second hole, the first bearing surface is provided with a plurality of first holes arranged at intervals, and the second bearing surface is provided with a plurality of second holes arranged at intervals; and

the punching needles comprise first needles and second needles, a plurality of the first needles are arranged at intervals and correspond to the first holes one by one, and a plurality of the second needles are arranged at intervals and correspond to the second holes one by one.

Optionally, the lower die further comprises a guide post, the upper die is provided with a guide hole, and the upper die is sleeved on the guide post through the guide hole;

and/or, the punching device further comprises a needle guide plate, the needle guide plate is connected to the guide post, the guide plate is provided with a limiting hole, the guide plate covers the bearing part to form a bearing channel, and the limiting hole is communicated with the bearing channel.

The invention also proposes a punching device comprising:

the main body is provided with a mounting rack; and

any one of the punching devices is connected to the mounting frame.

The technical scheme of the invention adopts the adjustable die which can be matched with various pockets. The die comprises an upper die and a lower die, the upper die is provided with punching needles, the lower die comprises a fixed die and a movable die, the first bearing surface is arranged at the fixed die, the second bearing surface is arranged at the movable die, and the movable die can be manually adjusted. The first bearing surface supports the sheet position of the carrier tape, the second bearing surface supports the pocket bottom of the carrier tape, and two sides of the channel clamp two sides of the pocket. The difference in height between the first bearing surface and the second bearing surface determines how deep the carrier section can carry the carrier tape of pockets. After the carrier tape enters the bearing part, the punching needle of the upper die is pressed down, and a required hole is punched on the carrier tape, wherein the first bearing surface and the second bearing surface support the carrier tape so as to enable punching and forming. Therefore, the distance between the second bearing surface and the first bearing surface is increased or reduced by adjusting the position of the movable die, and different carrier tapes are adapted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a punching apparatus according to the present invention;

FIG. 2 is a front view of the punching apparatus of the present invention;

FIG. 3 is a schematic view of the lower film structure of the punching device of the present invention;

FIG. 4 is a schematic view showing the structure of a fixed die of the punching device of the present invention.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

Referring to fig. 1 to 4, the present invention proposes an embodiment of a punching device including an upper die 1 and a lower die 2. The upper die 1 is provided with punching pins 11. The lower die 2 is detachably connected to the upper die 1, the lower die 2 comprises a fixed die 21 and a movable die 22, the fixed die 21 is provided with a first bearing surface 211 and a channel 212 communicated with the first bearing surface 211, the movable die 22 is movably connected with the fixed die 21, the movable die 22 is provided with a boss movably arranged in the channel 212, the boss is provided with a second bearing surface 2222, the first bearing surface 211, the second bearing surface 2222 and the channel 212 form a bearing part matched with the pocket, and the bearing part is provided with a forming hole. Wherein the movable die 22 moves relative to the fixed die 21 and drives the boss to slide in the channel 212, so as to raise or lower the second bearing surface 2222, and the punching needle 11 punches the carrier tape located at the bearing portion.

Specifically, the upper die 1 includes an upper die 1 plate and a punching pin 11 plate, the upper die 1 plate being provided with a notch and a screw hole surrounding the notch. The punching needle 11 plate is provided with a countersunk hole, and is arranged on the upper die 1 plate through a screw. The punching needle 11 is arranged on the punching needle 11 plate, and when the punching needle 11 plate is arranged on the upper die 1 plate, the punching needle 11 extends downwards from the notch. So that the punching pin 11 punches downward when the upper die 1 is connected to the lower die 2. The lower die 2 includes a fixed die 21 and a movable die 22. The fixed die 21 has a rectangular block structure, a first bearing surface 211 is provided on the upper side, a movable chamber 213 is provided inside, a passage 212 is provided in the middle, and both ends of the passage 212 extend into the first bearing portion and the movable chamber 213, respectively. The movable die 22 is disposed in the movable cavity 213, a portion of the movable die 22 is slidably connected in the channel 212, and a portion of the movable die 22 extending into the channel 212 is provided with a second bearing surface 2222.

Further, the carrier tape is in the shape of a strip, which is a sheet having a plurality of pockets uniformly spaced apart, and the pockets are arranged in a matrix. It will be appreciated that the parameters of the pocket include length, width and depth. Therefore, the width of the first bearing surface 211 is larger than the sheet width of the carrier tape. The channel 212 is square in cross-section and has a width slightly greater than the width of the pockets of the carrier tape. The channel 212 is longer than one or more pockets of the carrier tape and intercepts the first bearing surface 211 so that the pockets can enter the channel 212. And, the second bearing surface 2222 is parallel to the first bearing surface 211, and the height difference between the first bearing surface 211 and the second bearing surface 2222 is the depth of the pocket. The first bearing surface 211, the second bearing surface 2222 and the two sides of the channel 212 form a bearing part capable of accommodating a carrier tape (i.e. a sheet-like structure with pockets).

With this embodiment, the first bearing surface 211 supports the sheet position of the carrier tape, the second bearing surface 2222 supports the pocket bottom of the carrier tape, and the two sides of the channel 212 sandwich the two sides of the pocket. The difference in height between the first bearing surface 211 and the second bearing surface 2222 determines how deep the carrier portion can carry a carrier tape of pockets. After the carrier tape enters the carrier part, the punching needle 11 of the upper die 1 is pressed down to punch a required hole in the carrier tape, wherein the first carrier surface 211 and the second carrier surface 2222 support the carrier tape to form the punched hole. Thus, by adjusting the position of the movable mold 22, the distance between the second bearing surface 2222 and the first bearing surface 211 is increased or decreased, so as to adapt to different carrier tapes.

Referring to fig. 1 to 4, an embodiment of the present invention is provided, wherein the movable mold 22 includes a sliding block 222 and an adjusting structure. The sliding block 222 is provided with the boss, the boss is slidably connected to the channel 212, and the boss is provided with the second bearing surface 2222. One end of the adjusting structure is slidably connected to the fixed die 21, and the other end is connected to the sliding block 222. Wherein, the adjusting structure drives the sliding block 222 to move relative to the fixed mold 21, and drives the boss to slide in the channel 212, so as to raise or lower the second bearing surface 2222.

Specifically, the slide block 222 of the movable die 22 includes a base plate and a boss provided on the base plate, the boss being sized to mate, typically a clearance fit, with the channel 212. The bottom plate is located within the movable cavity 213. The side of the fixed die 21 is provided with an adjusting hole to which the adjusting structure is connected. The bottom of the bottom plate is provided with an inclined plane, and the adjusting structure is abutted against the inclined plane from the horizontal direction.

Further, the adjusting hole is a threaded hole, the adjusting structure is provided with threads, and the adjusting structure is matched together in a threaded connection manner, and the position of the adjusting structure, which is abutted against the sliding block 222, can be finely adjusted through rotation, so that the height of the second bearing surface 2222 is finely adjusted. The adjusting hole can also be a through hole, and the side surface of the adjusting hole is provided with a threaded hole for installing a jackscrew. The position of the second bearing surface 2222 is further fixed by fixing the position of the adjusting hole by the jackscrew. The adjusting structure comprises a push rod 2211 and rollers, the push rod 2211 is slidably connected to the adjusting hole, the end of the push rod 2211 is provided with the rollers, and the rollers are abutted against the inclined surface of the bottom plate

By this embodiment, the adjustment structure moves horizontally, abutting the incline of the slider 222. The horizontal force forms an upward component on the inclined surface, pushing the boss to move upward. And thus the height of the second bearing surface 2222 may be adjusted.

Referring to fig. 1 to 4, the present invention proposes an embodiment, in which the adjusting structure includes a driving member 221 and a base. The driving member 221 is slidably connected to the fixed die 21. The sliding block 222 is connected to the base, and the driving member 221 is connected to the base, where a movement direction of the driving carrier and the sliding block 222 form an included angle with respect to a movement direction of the channel 212.

Specifically, the driving member 221 is a rod-shaped member capable of pushing and pulling the base, and the base is provided with an inclined surface having a certain angle with the horizontal direction, so that the base moves along the inclined surface. The driving member 221 pushes and pulls one side of the base to change the position of the base, and the other side of the base carries the sliding block 222 to drive the sliding block 222 to move in the vertical direction.

Referring to fig. 1 to 4, the present invention proposes an embodiment in which the fixed mold 21 is provided with a movable cavity 213 communicating with the channel 212, the movable cavity 213 is provided with a first sliding groove, the base is provided with a first sliding table, and the first sliding table and the first sliding groove cooperate to move the base in an oblique direction.

Specifically, the movable cavity 213 of the fixed mold 21 is provided with first sliding grooves on both sides thereof, and the first sliding grooves are disposed obliquely at an angle of 30 to 60 degrees with respect to the horizontal direction. The both sides of base are equipped with first slip table, first slip table cooperation first spout sliding connection for the base moves along inclination. The upper surface of the base abuts against the sliding block 222, and it is also understood that the base carries the sliding block 222, and the sliding block 222 is formed with a boss and a second carrying surface 2222 of the boss. The adjusting structure is connected with the side face of the base.

The driving member 221 is slidably coupled to the base. The driving member 221 may also be rotatably connected to the base by a rocker or lever.

Through the present embodiment, the driving member 221 moves in the horizontal direction to drive the base to move obliquely upward or obliquely downward along the first chute. And further raise the slider 222 located on the upper side of the base, so that the second bearing surface 2222 is raised or lowered.

Referring to fig. 1 to 4, an embodiment of the present invention is provided, a second sliding groove is further provided on the upper side of the base, the sliding block 222 is provided with a second sliding table, and the second sliding groove and the second sliding table cooperate to enable the sliding block 222 to be slidingly connected to the base. The side of base still is equipped with the third spout, driving piece 221 is equipped with the third slip table, the third spout with the cooperation of third slip table makes adjust structure sliding connection in the base.

Specifically, the upper side of the base has a second sliding groove, two side edges of the bottom of the sliding block 222 are provided with second bosses, and the sliding block 222 is embedded into the base through the cooperation of the second sliding groove and the second bosses. One side of the base is provided with a third sliding groove, two side edges of the bottom of the sliding block 222 are provided with third bosses, and the sliding block 222 is embedded into the base through the cooperation of the third sliding groove and the third bosses.

Through this embodiment, when the driving member 221 moves in the horizontal direction, the base receives a driving force in the horizontal direction, and moves along the oblique direction under the cooperation of the first sliding groove and the second sliding groove, that is, is divided into a displacement in the vertical direction and a displacement in the horizontal direction, the driving member 221 moves horizontally to push the base to move by a distance equal to the displacement in the horizontal direction of the base, and the third sliding groove cooperates with the third sliding groove to realize the displacement of the base relative to the driving member 221 in the vertical direction. Similarly, the sliding block 222 is limited by the channel 212 and can only be displaced in the vertical direction, so that the second sliding table moves in the second sliding groove due to the horizontal displacement of the base, but the sliding block 222 is driven to displace in the vertical direction.

In combination with fig. 1 to 4, an embodiment of the present invention is provided, where the base is further provided with a guiding surface, and the guiding surface is located on one side of the second sliding groove and extends into the second sliding groove, so as to guide the second sliding table to enter the second sliding groove. The base is also provided with a lightening hole.

Specifically, the connection of the slider 222 and the base is a detachable connection. Wherein one side of the base is provided with an inclined plane which cuts a part of the second chute, so that the cut inclined plane is connected with the second chute.

Further, the shape of the lightening hole is a square hole, so that the structure of the base forms a frame shape.

Through this embodiment, make things convenient for slider 222 to install on the base to the lightening hole of base makes the weight and the volume of base all diminish, and then reduces the required power of driving piece 221 promotion base, makes the process of adjusting slider 222 lighter, also makes more accurate.

Referring to fig. 1 to 4, an embodiment of the present invention is provided, the fixed mold 21 is provided with a plurality of channels 212, the channels 212 are spaced apart and all communicate with the first bearing surface 211, the sliding block 222 is provided with a plurality of bosses, the bosses are spaced apart, and one boss is correspondingly slidably connected to one channel 212.

Specifically, the cross section of the channel 212 is rectangular, and the plurality of channels 212 are arranged at intervals to form a fence-like shape. The number of channels 212 determines how many pockets the carrier can carry, and the length of the channels 212 determines how many perforations can be punched at a time on the carrier. The bosses of the slider 222 are also arranged in accordance with the number of channels 212 and all bosses are embedded within the channels 212 such that the second bearing surface 2222 of the boss can support pockets at multiple locations on a carrier tape.

With the present embodiment, with the carrier portion formed by combining the plurality of channels 212 and the plurality of bosses, the length direction of the channels 212 is the direction in which the carrier tape enters and leaves, the plurality of pockets on the carrier tape enter the plurality of channels 212 at the same time, the sheet portion of the carrier tape is supported by the first carrying surface 211, and the boss second carrying surfaces 2222 between the side walls of both sides of the plurality of channels 212 support the periphery of the pockets. The carrier tape enters the carrier part from one end and leaves the carrier part from the other end after punching, so that the punching needle 11 can punch a plurality of pockets and sheet parts at one time.

Referring to fig. 1 to fig. 4, the present invention proposes an embodiment, where the molding hole includes a first hole 214 and a second hole 2224, the first bearing surface 211 is provided with a plurality of first holes 214 disposed at intervals, and the second bearing surface 2222 is provided with a plurality of second holes 2224 disposed at intervals. The punching pin 11 includes a first pin 111 and a second pin 112, a plurality of the first pins 111 are arranged at intervals and correspond to the first holes 214 one by one, and a plurality of the second pins 112 are arranged at intervals and correspond to the second holes 2224 one by one.

The slider 222 includes a slider 222 and a base. The slider 222 is provided with the boss. The sliding block 222 is connected to the upper side of the base, the adjusting structure is connected to the lower side of the base, the base is provided with a first sliding table, the fixed die 21 is provided with a first sliding groove, and the first sliding table and the first sliding groove cooperate to enable the base to move in an inclined direction.

Specifically, the shaped aperture includes two different apertures, a first aperture 214 located on the first bearing surface 211 and a second aperture 2224 located on the second bearing surface 2222. Similarly, the punch pin 11 includes two different pins, a first pin 111 for punching holes through the carrier tape at the location of the first hole 214 and a second pin 112 for punching holes through the carrier tape at the location of the second hole 2224. Wherein a first hole 214 is formed in the carrier tape at the sheet location and a second hole 2224 is formed in the carrier tape at the pocket locations, one hole for each pocket.

Further, the first holes 214 and the second holes 2224 are uniformly spaced apart, and the first needle 111 and the second needle 112 are disposed in the upper die 1 in a direction corresponding to the first holes 214 and the second holes 2224.

By this embodiment, the sheet portion of the carrier tape and the pocket can be punched simultaneously.

Referring to fig. 1 to 4, an embodiment of the present invention is provided, the lower die 2 further includes a guide post 215, the upper die 1 is provided with a guide hole, and the upper die 1 is sleeved on the guide post 215 through the guide hole. The punching device further comprises a needle guide plate, the needle guide plate is connected to the guide column 215, the guide plate is provided with a limiting hole, the guide plate covers the bearing part to form a bearing channel 212, and the limiting hole is communicated with the bearing channel 212.

Specifically, four guide posts 215 are provided on the periphery of the stent 21. The upper die 1 is provided with four guide holes, the guide posts 215 are correspondingly sleeved with the upper die 1, the upper die 1 and the lower die 2 can slide up and down along the guide posts 215, the needle guide plate is detachably connected to the guide posts 215 and can cover the lower die 2, the carrier part wraps the carrier belt, and the positions of the needle guide plate corresponding to the forming holes are also provided with the same forming holes.

Furthermore, the four guide holes can be arranged by using the guide sleeve, so that the guide holes are in a detachable state, more wear-resistant materials are conveniently adopted, the durability of the guide holes is better, and parts are convenient to process and replace. The upper die 1 is also connected with a cylinder assembly, and the upper die 1 is driven to reciprocate in the vertical direction.

With the present embodiment, when the upper die 1 moves down, the punching pin 11 pierces the carrier tape and extends into the molding hole. When the upper die 1 is moved up, the punching pins 11 are moved away from the carrier tape and the forming holes, and then the carrier tape is slid away from the carrier part along the side walls of the channels 212, so that the unpunched portions are placed on the carrier part, and the punching pins 11 are punched again. The carrier tape enters the carrier part and is clamped by the lower die 2 and the needle guide plate, and the punching needle 11 can punch the correct position of the carrier tape without deviation under the guidance of the forming hole of the needle guide plate.

The invention also provides punching equipment, which comprises a main body and a punching device, wherein the specific structure of the punching device refers to the embodiment, and as the punching device adopts all the technical schemes of all the embodiments, the punching equipment at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted. Wherein, the main part includes the mounting bracket of equipment, and the mounting bracket is usually section bar frame and mounting panel constitution, and punching device installs on section bar frame or mounting panel.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims (10)

1. A punching device for punching a hole in a carrier tape having pockets, the punching device comprising:

the upper die is provided with punching needles; and

the lower die is detachably connected to the upper die and comprises a fixed die and a movable die, the fixed die is provided with a first bearing surface and a channel communicated with the first bearing surface, the movable die is movably connected with the fixed die and is provided with a boss movably arranged in the channel, the boss is provided with a second bearing surface, the first bearing surface, the second bearing surface and the channel form a bearing part matched with the pocket, and the bearing part is provided with a forming hole;

the movable die moves relative to the fixed die and drives the boss to slide in the channel so as to enable the second bearing surface to rise or fall, and the punching holes punch the carrier tape positioned on the bearing part.

2. The punching device according to claim 1, characterized in that the movable die includes:

the sliding block is provided with the boss, the boss is connected to the channel in a sliding manner, and the boss is provided with the second bearing surface; and

one end of the adjusting structure is connected with the fixed mould in a sliding way, and the other end of the adjusting structure is connected with the sliding block;

the adjusting structure drives the sliding block to move relative to the fixed die and drives the boss to slide in the channel so as to enable the second bearing surface to rise or fall.

3. A punching device according to claim 2, characterized in that the adjustment structure comprises:

a driving member slidably coupled to the stationary mold; and

the base, the sliding block connect in the base, the driving piece connect in the base, wherein, the drive drives the direction of movement that bears and the sliding block are the contained angle setting in the direction of movement of passageway.

4. A punching device according to claim 3, characterized in that the fixed die is provided with a movable chamber communicating with the passage, the movable chamber is provided with a first slide groove, the base is provided with a first slide table, and the first slide table and the first slide groove cooperate to move the base in an oblique direction.

5. A punching device according to claim 3, characterized in that the upper side of the base is further provided with a second slide groove, the slide block is provided with a second slide table, and the second slide groove and the second slide table cooperate to enable the slide block to be slidingly connected to the base.

6. A punching device according to claim 3, characterized in that the side of the base is further provided with a third slide, the driving member is provided with a third slide, the third slide and the third slide cooperate to slidingly connect the adjustment structure to the base.

7. The punching device according to claim 1, wherein said fixed die is provided with a plurality of said passages which are arranged at intervals and are all communicated with said first bearing surface, said sliding block is provided with a plurality of said bosses which are arranged at intervals and one of said bosses is correspondingly slidably connected with one of said passages.

8. A punching device according to any of claims 1 to 7, characterized in that the forming holes comprise a first hole and a second hole, the first bearing surface being provided with a plurality of first holes arranged at intervals, the second bearing surface being provided with a plurality of second holes arranged at intervals; and

the punching needles comprise first needles and second needles, a plurality of the first needles are arranged at intervals and correspond to the first holes one by one, and a plurality of the second needles are arranged at intervals and correspond to the second holes one by one.

9. The punching device according to claim 1, wherein the lower die further comprises a guide post, the upper die is provided with a guide hole, and the upper die is sleeved on the guide post through the guide hole;

and/or, the punching device further comprises a needle guide plate, the needle guide plate is connected to the guide post, the guide plate is provided with a limiting hole, the guide plate covers the bearing part to form a bearing channel, and the limiting hole is communicated with the bearing channel.

10. A punching apparatus, characterized in that the punching apparatus comprises:

the main body is provided with a mounting rack; and

a punching device according to any of claims 1 to 9, said punching device being attached to said mounting frame.