Punching device for heavy bags

Abstract

The utility model discloses a punching device for heavy bags, which relates to the technical field of heavy bag processing and comprises a support plate and a protective cover, an air cylinder is connected onto the support plate, a connecting plate is fixed at the lower end of a piston rod of the air cylinder, a plurality of micropore needles are mounted on the lower surface of the connecting plate, guide holes are arranged on two sides of the support plate, and guide columns are mounted in the guide holes in a sliding manner. The lower ends of the guide columns are fixed to the connecting plate, ribs are fixed between the two ends of the supporting plate and the tops of the two sides of the protective cover, the microporous needle is covered with the protective cover, and an auxiliary positioning mechanism is arranged at the bottom of the protective cover and is in sliding fit with the microporous needle. According to the auxiliary positioning mechanism, the positioning plate on the auxiliary positioning mechanism can press the side edge of the heavy package bag, when the micropore needle retracts into the protective cover after punching is completed, the micropore needle does not carry the side edge of the heavy package bag to enter the protective cover together, needle lifting is better, and the micropore needle can be separated from the side edge of the heavy package bag conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of heavy bag processing, in particular to a heavy bag punching device. Background Art

[0002] During the processing of heavy bags, it is sometimes necessary to punch microholes on their sides to facilitate exhaust. After searching, it was found that the prior art, such as Chinese patent (grant number: CN212147737U), discloses a device for punching microholes on the sides of heavy bags. Microholes are automatically punched on the sides of heavy bags by a cylinder. Not only are the microholes evenly positioned and the production efficiency is high, but the quality of the microholes on the sides of the heavy bags is also guaranteed.

[0003] However, the lower end of the protective cover in the above patent is open. According to practical experience, we have found that after the microporous needle completes punching the side of the heavy bag, when the needle returns, due to the friction between the microporous needle and the heavy bag, it is very likely that the heavy bag will be brought into the protective cover, affecting the needle removal and making it difficult to separate the two. Therefore, improvements are needed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a heavy bag punching device, which solves the problems mentioned in the background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A heavy bag punching device comprises a support plate and a protective cover. The support plate is connected to a cylinder. A connecting plate is fixed to the lower end of the piston rod of the cylinder. A plurality of micropore needles are installed on the lower surface of the connecting plate. Guide holes are provided on both sides of the support plate. Guide pillars are slidably installed in the guide holes. The lower ends of the guide pillars are fixed to the connecting plate. Ribs are fixed between the two ends of the support plate and the tops of both sides of the protective cover. The protective cover covers the outside of the micropore needles.

[0007] Compared with the prior art, the main difference of the utility model is that an auxiliary positioning mechanism is arranged at the bottom of the protective cover, and the auxiliary top mechanism is slidably matched with the micro-hole needle.

[0008] In order to realize the detachability of the microporous needle, the microporous needle is detachably mounted on a connecting plate, a plurality of needle grooves are provided on the lower surface of the connecting plate, the microporous needle is detachably mounted in the needle groove, and the upper end of the microporous needle is threadedly mounted in the needle groove.

[0009] The auxiliary positioning mechanism includes a positioning plate stuck at the lower cover opening of the protective cover, and stoppers for locking the positioning plate are arranged on both sides of the protective cover near its lower end. A plurality of pinholes are opened on the positioning plate, and the pinholes and micropore needles are arranged opposite to each other up and down.

[0010] In order to lock the positioning plate, the stopper is a transverse bolt threadedly mounted on the protective cover, and the rod of the transverse bolt is against the top of the positioning plate.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the positioning plate on the auxiliary positioning mechanism can press the side of the heavy bag tightly, and when the microporous needle retracts into the protective cover after punching, the microporous needle will not bring the side of the heavy bag into the protective cover together, which can better remove the needle and facilitate the separation of the microporous needle from the side of the heavy bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 It is an exploded view of the utility model;

[0014] Figure 3 The utility model is a cross-sectional view of the protective cover Figure 1 ;

[0015] Figure 4 The utility model is a cross-sectional view of the protective cover Figure 2 .

[0016] Figure numerals: 1. support plate; 2. protective cover; 3. cylinder; 4. connecting plate; 4-1. needle groove; 5. micropore needle; 6. guide column; 7. rib; 8. positioning plate; 8-1. needle hole; 9. stopper. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] like Figure 1-2 As shown, the utility model provides a heavy bag punching device, including a support plate 1 and a protective cover 2. The support plate 1 is connected with a cylinder 3. The lower end of the piston rod of the cylinder 3 is fixed with a connecting plate 4. A plurality of microporous needles 5 are installed on the lower surface of the connecting plate 4. Guide holes are provided on both sides of the support plate 1. Guide pillars 6 are slidably installed in the guide holes. The lower ends of the guide pillars 6 are fixed on the connecting plate 4. Ribs 7 are fixed between the two ends of the support plate 1 and the tops of both sides of the protective cover 2. The protective cover 2 covers the outside of the microporous needles 5. The above structures are all prior arts. The cylinder 3 can drive the microporous needles 5 to extend from the lower cover port of the protective cover 2 to punch holes on the sides of the heavy bag, and can also drive the microporous needles 5 to retract into the protective cover 2 to achieve needle removal. The more specific working principle will not be repeated in the utility model.

[0019] like Figure 1 , Figure 3-4As shown, the main difference between the present invention and the prior art is that an auxiliary positioning mechanism is provided at the bottom of the protective cover 2 , and the auxiliary top mechanism is slidably matched with the microporous needle 5 .

[0020] like Figure 4 As shown, in order to achieve the detachability of the microporous needle 5, the microporous needle 5 is detachably installed on the connecting plate 4, and a plurality of needle grooves 4-1 are opened on the lower surface of the connecting plate 4. The microporous needle 5 is detachably installed in the needle groove 4-1, and the upper end of the microporous needle 5 is threadedly installed in the needle groove 4-1.

[0021] like Figure 3-4 As shown, the auxiliary positioning mechanism includes a positioning plate 8 stuck at the lower cover opening of the protective cover 2, where the positioning plate 8 is interference fit with the protective cover 2, and stoppers 9 for locking the positioning plate 8 are arranged on both sides of the protective cover 2 near its lower end, and a plurality of pinholes 8-1 are opened on the positioning plate 8, and the pinholes 8-1 are arranged opposite to the micropore needles 5 up and down.

[0022] like Figure 3 As shown, in order to achieve locking of the positioning plate 8 , the stopper 9 is a transverse bolt threadedly mounted on the protective cover 2 , and the rod of the transverse bolt is against the top of the positioning plate 8 .

[0023] The working principle of the distinctive design of the utility model is described in detail below: when punching holes on the side of the heavy bag, the positioning plate 8 can press the side of the heavy bag, and then the cylinder 3 can drive the microporous needle 5 to extend out of the protective cover 2 through the pinhole 8-1 to achieve the punching of the side of the heavy bag. After completion, the microporous needle 5 is retracted by the cylinder 3, and the microporous needle 5 is retracted into the protective cover 2 through the pinhole 8-1. During this process, the side of the heavy bag will not be brought into the protective cover 2. When the microporous needle 5 needs to be replaced or the spacing needs to be adjusted, the bolt is unscrewed from the protective cover 2, and the positioning plate 8 is pushed upward to make the positioning plate 8 in the protective cover 2. Move up and down until the lower end of the micropore needle 5 extends out of the pinhole 8-1, so that the micropore needle 5 can be rotated to disengage it from the needle groove 4-1, and then the micropore needle 5 can be pulled out of the pinhole 8-1. According to the installation position of the micropore needle 5, the upper end of the micropore needle 5 is inserted into the protective cover 2 from the pinhole 8-1, and then the micropore needle 5 is rotated until its upper end is screwed into the needle groove 4-1. The cylinder 3 is started to drive the connecting plate 4 to move down until the connecting plate 4 coincides with the positioning plate 8, and then continues to move down to push the positioning plate 8 to be stuck at the lower cover opening of the protective cover 2. Finally, the bolts are screwed on the protective cover 2 to lock the positioning plate 8.

[0024] Finally, compared with the prior art, the most important contribution of the utility model is that the positioning plate 8 on the auxiliary positioning mechanism can press the side of the heavy bag. When the microporous needle 5 retracts into the protective cover 2 after punching, the microporous needle 5 will not enter the protective cover 2 with the side of the heavy bag, which can better remove the needle and facilitate the separation of the microporous needle 5 from the side of the heavy bag.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heavy bag punching device, comprising a support plate and a protective cover, wherein a cylinder is connected to the support plate, a connecting plate is fixed to the lower end of the piston rod of the cylinder, and a plurality of micro-pore needles are installed on the lower surface of the connecting plate, guide holes are provided on both sides of the support plate, guide pillars are slidably installed in the guide holes, and the lower ends of the guide pillars are fixed to the connecting plate, ribs are fixed between the two ends of the support plate and the tops of both sides of the protective cover, and the protective cover covers the outside of the micro-pore needles, characterized in that: The bottom of the protective cover is provided with an auxiliary positioning mechanism, and the auxiliary top mechanism is slidably matched with the micropore needle.

2. A heavy bag punching device according to claim 1, characterized in that: The microporous needle is detachably mounted on the connecting plate.

3. A heavy bag punching device according to claim 2, characterized in that: A plurality of needle grooves are provided on the lower surface of the connecting plate, and the microporous needles are detachably installed in the needle grooves.

4. A heavy bag punching device according to claim 3, characterized in that: The upper end of the microporous needle is threadedly installed in the needle groove.

5. A heavy bag punching device according to claim 4, characterized in that: The auxiliary positioning mechanism includes a positioning plate stuck at the lower cover opening of the protective cover, and stoppers for locking the positioning plate are arranged on both sides of the protective cover near its lower end. A plurality of pinholes are opened on the positioning plate, and the pinholes and micropore needles are arranged opposite to each other up and down.

6. A heavy bag punching device according to claim 5, characterized in that: The stopper is a transverse bolt threadedly mounted on the protective cover, and the rod body of the transverse bolt is against the top of the positioning plate.

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