Bag opening device of stringing machine

Abstract

The utility model relates to a stringing machine, in particular to a bag opening device of a stringing machine, which comprises a bag feeding mechanism and a bag opening mechanism, a bag feeding path is formed on the bag feeding mechanism, a bag body is vertically arranged on the bag feeding path, the bag feeding mechanism comprises a bag clamping component used for clamping the bag body, and the bag opening mechanism is arranged on the bag clamping component. The bag opening mechanism is arranged on the bag conveying path and comprises two bag opening suction nozzles, the two bag opening suction nozzles are oppositely arranged on the two sides of the bag conveying path, each bag opening suction nozzle is provided with a bag suction position and a bag opening position, and the bag opening suction nozzles reciprocate between the bag suction positions and the bag opening positions. The bag opening mechanism is connected with the bag conveying mechanism, the bag sucking position is higher than the bag opening position, the two sets of bag opening suction nozzles are kept in an opposite state in the reciprocating movement process of the bag opening suction nozzles, the bag sucking position is higher than the bag opening position, and the bag opening suction nozzles drive the whole bag to move downwards in the bag opening process so as to correct natural upward movement of the bag bottom.

Description

TECHNICAL FIELD

[0001] The utility model relates to a stringing machine, especially a bag opening device of stringing machine. BACKGROUND

[0002] The existing stringing machine adopts bag clamping assembly to convey the vertically arranged bag body, and sequentially carries out punching and stringing, and bag opening is carried out before punching and stringing, and the bag faces on both sides are pulled apart by a sufficient processing interval, wherein, after the bag clamping assembly conveys the bag body to the position, the bag opening suction nozzle adsorbs the bag body, the bag clamping assembly releases the bag body, then two groups of bag opening suction nozzles horizontally move to open the bag opening, the bag clamping assembly clamps the bag body after processing, the bag opening suction nozzle releases the bag body, and the bag faces on both sides are unfolded to form the bag opening during the bag opening process, and the bag bottom will naturally move upward, resulting in the deviation of the position of the bag clamping assembly clamping the bag body after processing, and affecting the accuracy of the subsequent processing procedure. SUMMARY

[0003] In view of the technical problems in the background art, the utility model aims at providing a bag opening device of stringing machine, the bag suction position is higher than the bag opening position, and the bag opening suction nozzle drives the whole bag to move downward during the bag opening process to correct the natural upward movement of the bag bottom.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: the bag opening mechanism of the stringing machine, comprising a bag conveying mechanism and a bag opening mechanism, the bag conveying mechanism forms a bag conveying path, and the bag body is vertically arranged on the bag conveying path, the bag conveying mechanism comprises a bag clamping assembly for clamping the bag body, the bag opening mechanism is arranged on the bag conveying path, the bag opening mechanism comprises a bag opening suction nozzle, two groups of bag opening suction nozzles are oppositely arranged on both sides of the bag conveying path, the bag opening suction nozzle has a bag suction position and a bag opening position, the bag opening suction nozzle reciprocates between the bag suction position and the bag opening position, and the bag opening mechanism is connected with the bag conveying mechanism, wherein, the bag suction position is higher than the bag opening position, and the two groups of bag opening suction nozzles remain in the relative state during the reciprocating movement of the bag opening suction nozzle.

[0005] In this scheme, the bag suction position is higher than the bag opening position, so that the bag opening suction nozzle drives the whole bag to move downward during the bag opening process to correct the upward movement of the bag bottom caused by the bag opening, and the two groups of bag opening suction nozzles remain in the relative state during the reciprocating movement of the bag opening suction nozzle, so that the bag faces on both sides are flat relative to the processing assembly.

[0006] Preferably, the bag opening suction nozzle is arranged on a mounting frame, the mounting frame is connected with a sliding block, and the sliding block is slidingly matched with an inclined sliding rail.

[0007] In this scheme, the inclined sliding rail and the sliding block cooperate to guide the reciprocating movement of the bag opening suction nozzle.

[0008] Preferably, the mounting frame comprises a mounting portion and a guiding portion, the mounting portion is in transmission connection with the cylinder, the mounting portion is used for mounting the bag opening suction nozzle, the guiding portion is connected with the sliding block, the mounting portion and the guiding portion form an included angle, and the included angle is not a right angle.

[0009] In this scheme, the cylinder is driven to move linearly, the action is simple, and the structure is compact.

[0010] Preferably, the bag conveying mechanism has a longitudinal conveying direction, the mounting frame is provided with a longitudinal adjusting slot through which a fastener passes, the bag opening suction nozzle is connected with a mounting block, and the mounting block is provided with a mounting hole for connecting the fastener.

[0011] In this scheme, the fastener passes through the longitudinal adjusting slot and is connected with the mounting hole, so that the mounting block and the mounting frame are locked, and the position of the mounting hole can be adjusted by loosening, thereby adapting to bag bodies of different specifications.

[0012] Preferably, the bag clamping assembly comprises two groups of clamping plates, the clamping plates have a bag clamping state and a bag releasing state, and the clamping plates are in the bag releasing state during movement of the bag opening suction nozzle from the bag suction position to the bag opening position.

[0013] In this scheme, the bag releasing of the clamping plates avoids wrinkles of the bag body during the bag opening process.

[0014] Preferably, the number of the bag opening suction nozzles in one group is two, and a gap for passing the workpiece is formed between the two bag opening suction nozzles.

[0015] In this scheme, the bag is opened at four corners, the bag surfaces on both sides are flat relative to the workpiece, and the adsorption force is sufficient, so that the bag surfaces on both sides will not deviate during the processing.

[0016] The bag suction position is higher than the bag opening position, so that the bag opening suction nozzle drives the whole to move downward during the bag opening process, to correct the upward movement of the bag bottom caused by the bag opening, and the relative state is maintained during the reciprocating movement of the bag opening suction nozzle, so that the bag surfaces on both sides are flat relative to the processing assembly. Therefore, the utility model has substantial characteristics and progress compared with the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0017] The related details and working principles of the embodiments of the utility model will be described below in combination with the drawings.

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0019] Figure 2 It is Figure 1 It is another three-dimensional structure schematic view.

[0020] In the figure: 1, bag opening mechanism; 2, bag opening nozzle; 3, mounting frame; 4, sliding block; 5, inclined slide rail; 6, mounting part; 7, guide part; 8, air cylinder; 9, longitudinal adjusting groove; 10, mounting block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be understood that the positions or location relationships indicated by the terms "upper", "lower", etc. are based on the positions or location relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0023] In the description of the present application, the terms "first", "second", etc. are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated.

[0024] Referring to the drawings Figures 1-2 The bag opening device of the rope threading machine in the embodiment of the present embodiment comprises a bag feeding mechanism and a bag opening mechanism 1, the bag feeding mechanism is formed with a bag feeding path, a bag body is vertically arranged on the bag feeding path, the bag feeding mechanism comprises a bag clamping assembly for clamping the bag body, the bag clamping assembly comprises two sets of clamping plates, the clamping plates have a bag clamping state and a bag releasing state, the bag opening mechanism 1 is arranged on the bag feeding path, the bag opening mechanism 1 comprises a bag opening nozzle 2, two sets of the bag opening nozzles 2 are oppositely arranged on both sides of the bag feeding path, the number of one set of the bag opening nozzles 2 is two, a gap for the workpiece to pass through is formed between the two bag opening nozzles 2, the bag opening nozzle 2 has a bag suction position and a bag opening position, the bag opening nozzle 2 reciprocates between the bag suction position and the bag opening position, and the bag opening mechanism 1 is connected with the bag feeding mechanism.

[0025] The bag suction position is higher than the bag opening position, the two groups of bag opening suction nozzles 2 keep a relative state during reciprocating movement of the bag opening suction nozzles 2, the clamping plates are in a bag releasing state during movement of the bag opening suction nozzles 2 from the bag suction position to the bag opening position, the bag opening suction nozzles 2 are arranged on the mounting frame 3, the mounting frame 3 comprises a mounting portion 6 and a guide portion 7, the mounting portion 6 is in transmission connection with a cylinder 8, the mounting portion 6 is used for mounting the bag opening suction nozzles 2, the guide portion 7 is connected with a sliding block 4, the sliding block 4 is slidingly matched with an inclined sliding rail 5, the mounting portion 6 and the guide portion 7 have an included angle, the included angle is not a right angle, the conveying direction of the bag conveying mechanism is a longitudinal direction, the mounting frame 3 is provided with a longitudinal adjusting groove 9 through which a fastener passes, the bag opening suction nozzles 2 are connected with a mounting block 10, and the mounting block 10 is provided with a mounting hole for connecting the fastener.

[0026] In the embodiment, the bag conveying mechanism conveys the bag body to a position, the two groups of bag opening suction nozzles 2 reach the bag suction position and adsorb two side bag surfaces, the two groups of clamping plates release the bag body, the bag opening suction nozzles 2 move from the bag suction position to the bag opening position, pull apart the two side bag surfaces to form a bag opening, and the workpiece passes between the adjacent bag opening suction nozzles 2 to work on the bag surface, after the working is completed, the two groups of clamping plates clamp the bag body, the bag opening suction nozzles 2 release the bag body, and the bag conveying mechanism drives the bag body to be conveyed backward, wherein the two groups of clamping plates are connected with elastic members, so that the two groups of clamping plates keep a bag clamping state, and the two groups of clamping plates are switched to a bag releasing state by compressing the elastic members, which is mature technology; when the bag body specification changes, the mounting positions of the bag opening suction nozzles 2 are adjusted in the longitudinal direction; the setting of the non-right angle of the included angle is based on the fact that the included angle of the mounting portion 6 and the guide portion 7 is controversial and can be an intuitive acute angle or an obtuse angle formed by the extension line of the mounting portion 6 and the guide portion 7.

[0027] In other alternative embodiments, the bag opening suction nozzles 2 can also swing and keep a relative state by designing a four-bar linkage structure.

[0028] The preferred embodiments of the utility model are described above, and it should be pointed out that the protection scope of the utility model is not limited to this. For those skilled in the art, on the premise of not departing from the technical range disclosed by the utility model, a plurality of improvements and refinements or equivalent replacements can also be made under the premise of the same utility model concept, and it is also regarded as the protection scope of the utility model.

Claims

1. A bag opening device of a stringing machine, comprising a bag conveying mechanism, which is formed with a bag conveying path on which a bag is vertically arranged, and comprises a bag clamping assembly for clamping the bag; a bag opening mechanism (1) arranged on the bag conveying path, the bag opening mechanism (1) comprising two sets of bag opening nozzles (2) oppositely arranged on both sides of the bag conveying path, the bag opening nozzles (2) having a bag suction position and a bag opening position, the bag opening nozzles (2) reciprocating between the bag suction position and the bag opening position, and the bag opening mechanism (1) being connected with the bag conveying mechanism. characterized in that The bag suction position is higher than the bag opening position, and the two sets of bag opening nozzles (2) maintain an opposite state during reciprocation of the bag opening nozzles (2).

2. An opening bag apparatus of a stringing machine according to claim 1, wherein: The bag opening nozzles (2) are arranged on a mounting frame (3), the mounting frame (3) being connected with a sliding block (4), and the sliding block (4) being slidingly fitted with an inclined sliding rail (5).

3. An opening device for a stringing machine according to claim 2, characterized in that: The mounting frame (3) comprises a mounting portion (6) and a guide portion (7), the mounting portion (6) being drivingly connected with a cylinder (8), the mounting portion (6) being used for mounting the bag opening nozzles (2), the guide portion (7) being connected with the sliding block (4), the mounting portion (6) and the guide portion (7) having an included angle, and the included angle being non-right angle.

4. An opening device for a stringing machine according to claim 2, characterized in that: The conveying direction of the bag conveying mechanism is longitudinal, the mounting frame (3) being provided with a longitudinal adjusting slot (9) through which a fastener passes, the bag opening nozzles (2) being connected with a mounting block (10), and the mounting block (10) being provided with a mounting hole for connecting the fastener.

5. An opening device for a stringing machine according to claim 1, characterized in that: The bag clamping assembly comprises two sets of clamping plates, the clamping plates having a bag clamping state and a bag releasing state, and the clamping plates being in the bag releasing state during movement of the bag opening nozzles (2) from the bag suction position to the bag opening position.

6. An opening bag apparatus of a stringing machine as claimed in claim 1, characterized in that: The number of the bag opening nozzles (2) in one set is two, and a gap for passing a workpiece is formed between the two bag opening nozzles (2).

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