Bag opening mechanism for packaging machine

Abstract

The utility model relates to the technical field of packaging machines, in particular to a bag opening mechanism for a packaging machine, which comprises a sliding frame, a mounting frame and a bag opening component, the bottom of the sliding frame is provided with the mounting frame, and the bottom of the mounting frame is slidably connected with the bag opening component; the bag opening assembly comprises a supporting strip, the bottom of the supporting strip is connected with a clamping plate through a bolt, a flow guide groove is formed in the inner side of the clamping plate, and a suction nozzle is arranged on the portion, located on the periphery of the flow guide groove, of the surface of the clamping plate and communicates with the flow guide groove. By additionally arranging the auxiliary bag opening mechanism, the packaging bag is opened in advance in an auxiliary mode before bag opening operation is carried out, so that the using quality of the bag opening mechanism is improved, meanwhile, the working efficiency of the packaging machine is improved, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machines, in particular to a bag-supporting mechanism for packaging machines. Background Art

[0002] A packaging machine is a type of machine that packages products to protect and beautify them. During the packaging process, the bag needs to be opened by a bag-holding mechanism to facilitate the delivery of the product into the bag. The bag-holding mechanism is one of the important components of the packaging machine.

[0003] At present, when using a bag holding mechanism, there is a lack of an auxiliary bag opening mechanism. Usually, before performing the bag holding action, the bag holding mechanism needs to be inserted into the opened packaging bag. However, when the opening of the packaging bag is small, it is easy for the bag holding mechanism to have difficulty in entering the packaging bag, thereby affecting the bag holding effect. Therefore, a bag holding mechanism for a packaging machine is proposed to facilitate the addition of an auxiliary bag opening mechanism. Before performing the bag holding operation, the packaging bag is assisted in opening in advance, thereby improving the quality of using the bag holding mechanism, and at the same time, it is also beneficial to improve the working efficiency of the packaging machine, thereby improving the use effect. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a bag-opening mechanism for a packaging machine, so that the packaging bag can be assisted to be opened in advance before the bag-opening operation is performed, thereby improving the use effect.

[0005] The technical solution adopted by the utility model to solve the technical problem is a bag-supporting mechanism for a packaging machine, comprising a sliding frame, a mounting frame and a bag-opening assembly, wherein the mounting frame is arranged at the bottom of the sliding frame, and the bag-opening assembly is slidably connected to the bottom of the mounting frame;

[0006] The bag opening assembly includes a support bar, the bottom of the support bar is connected to a clamping plate by bolts, a guide groove is opened on the inner side of the clamping plate, a suction nozzle is arranged on the surface of the clamping plate outside the guide groove, and the suction nozzle is connected to the guide groove.

[0007] By adopting the above technical solution, it is convenient to add an auxiliary bag opening mechanism to improve the convenience and accuracy of use.

[0008] Specifically, a slideway is provided at the bottom of the mounting frame, a slide seat is slidably connected in the slideway, a rotating seat is connected to the bottom of the slide seat by bolts, a support rod is provided at the bottom of the rotating seat, both sides of one end of the support rod are connected to a rotating shaft by bolts, a coil spring is provided on the outer periphery of the rotating shaft, one end of the coil spring is connected to the rotating shaft by welding, and the other end of the coil spring is connected to the rotating seat by a slot.

[0009] By adopting the above technical solution, it is convenient to utilize elastic rotation, increase the flexibility of using the bag-supporting mechanism, and at the same time be applicable to packaging bags of various sizes.

[0010] Specifically, the top of the mounting frame is connected to the micro vacuum pump via bolts, and the air inlet end of the micro vacuum pump is connected to the guide groove via a hose.

[0011] By adopting the above technical solution, a vacuum negative pressure mechanism is formed by the guide groove and the suction nozzle through a micro vacuum pump.

[0012] Specifically, a magnetic block is fixedly installed on one side of the slide seat through a slot, an electromagnet is connected to one side of the slide seat in the slideway through bolts, and a return spring is installed on the other side of the slide seat in the slideway through a spring seat.

[0013] By adopting the above technical solution, it is convenient to utilize magnetic repulsion and elastic thrust to carry out bag holding and resetting actions.

[0014] Specifically, bidirectional screws are installed on both sides of the mounting frame through bearings, corresponding ball sliders are arranged on the periphery of the bidirectional screws, and the ball sliders are connected to the support bars through bolts, the surface of the mounting frame is connected to the servo motor through bolts, and the servo motor is connected to the bidirectional screw through a driving shaft.

[0015] By adopting the above technical solution, it is convenient to utilize the ball screw to drive and adjust the use height position of the bag opening assembly.

[0016] Specifically, the bottom of the sliding frame is connected to an electric push rod via bolts, and the output end of the electric push rod is connected to the mounting frame via bolts.

[0017] By adopting the above technical solution, it is convenient to drive the mounting frame to move vertically.

[0018] Specifically, a slide rail is provided on the top of the sliding frame.

[0019] By adopting the above technical solution, the sliding displacement of the sliding frame is facilitated.

[0020] Beneficial effects of the utility model:

[0021] (1) The bag-opening mechanism for a packaging machine described in the utility model can utilize vacuum negative pressure adsorption to increase an auxiliary bag-opening mechanism through the installation frame, support bars, clamping plates, guide grooves and suction nozzles. Before the bag-opening operation is performed on the packaging bag, the bag mouth is opened in advance, thereby improving the accuracy of the use of the bag-opening mechanism and facilitating the improvement of the working efficiency of the packaging machine.

[0022] (2) The bag-holding mechanism for a packaging machine described in the utility model can utilize elastic deformation to increase the flexibility of the bag-holding mechanism through the installation frame, slide, slide seat, rotating seat, rotating shaft and coil spring. It can not only increase the bag-holding range of the bag-holding mechanism, but also help to adapt to a variety of packaging bags of different sizes, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the bag opening assembly structure of the utility model;

[0026] Figure 3 This is a schematic cross-sectional structural diagram of the mounting frame of the utility model;

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the slide seat and the support rod of the utility model;

[0028] Figure 5 This is a schematic diagram of the bidirectional screw structure of the utility model;

[0029] In the figure: 1. sliding frame; 2. mounting frame; 201. slideway; 202. slide seat; 203. support rod; 204. rotating seat; 205. rotating shaft; 206. coil spring; 207. magnetic block; 208. electromagnet; 209. reset spring; 3. bag opening assembly; 301. support bar; 302. splint; 303. guide groove; 304. nozzle; 4. bidirectional screw; 5. ball slider; 6. servo motor; 7. micro vacuum pump; 8. electric push rod; 9. slide rail. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] In order to facilitate the opening of the packaging bag before the bag opening operation, the packaging bag can be opened in advance to improve the use effect. Figure 1-3 As shown, the bag-supporting mechanism for a packaging machine described in the utility model comprises a sliding frame 1, a mounting frame 2 and a bag-opening assembly 3. The mounting frame 2 is provided at the bottom of the sliding frame 1, and the bag-opening assembly 3 is slidably connected to the bottom of the mounting frame 2;

[0032] The bag opening assembly 3 includes a support bar 301 , the bottom of which is connected to a clamp plate 302 via bolts, a guide groove 303 is provided on the inner side of the clamp plate 302 , a suction nozzle 304 is provided on the surface of the clamp plate 302 at the periphery of the guide groove 303 , and the suction nozzle 304 is connected to the guide groove 303 .

[0033] When in use, the support bar 301, the clamping plate 302, the guide groove 303 and the suction nozzle 304 can be used to increase the auxiliary bag opening mechanism by using vacuum negative pressure, and the bag opening is opened in advance before the bag holding operation, thereby improving the accuracy of the use of the bag holding mechanism.

[0034] In order to improve the flexibility of use, for example, Figure 3 , Figure 4 As shown, the utility model also includes: a slideway 201 is provided at the bottom of the mounting frame 2, a slide seat 202 is slidably connected in the slideway 201, a rotating seat 204 is connected to the bottom of the slide seat 202 by bolts, a support rod 203 is provided at the bottom of the rotating seat 204, both sides of one end of the support rod 203 are connected to a rotating shaft 205 by bolts, a coil spring 206 is sleeved on the outer periphery of the rotating shaft 205, one end of the coil spring 206 is connected to the rotating shaft 205 by welding, and the other end of the coil spring 206 is connected to the rotating seat 204 by a slot.

[0035] When in use, the rotating shaft 205 and the coil spring 206 can be used to increase the flexibility of the support rod 203 in a rotating manner, and can also adapt to packaging bags of different sizes and bag support ranges.

[0036] For example, Figure 2 As shown, the utility model also includes that the top of the mounting frame 2 is connected to the micro vacuum pump 7 by bolts, and the air inlet end of the micro vacuum pump 7 is connected to the guide groove 303 by a hose.

[0037] When in use, the micro vacuum pump 7 is used to suck air to form negative pressure to assist the bag opening and adsorption action.

[0038] For example, Figure 3 , Figure 4 As shown, the utility model also includes that a magnetic block 207 is fixedly installed on one side of the slide 202 through a slot, an electromagnet 208 is connected to one side of the slide 202 in the slide 201 through bolts, and a return spring 209 is installed on the other side of the slide 202 in the slide 201 through a spring seat.

[0039] When in use, the electromagnet 208 is energized to generate a magnetic repulsion force with the magnetic block 207, which can drive the slide 202 to slide outward, and the return spring 209 facilitates the use of elastic force to push the slide 202 to perform a return sliding action.

[0040] For example, Figure 1 , Figure 5 As shown, the utility model also includes that bidirectional screws 4 are installed on both sides of the mounting frame 2 through bearings, corresponding ball sliders 5 are arranged on the periphery of the bidirectional screws 4, and the ball sliders 5 are connected to the support bars 301 through bolts, the surface of the mounting frame 2 is connected to the servo motor 6 through bolts, and the servo motor 6 is connected to the bidirectional screw 4 through a driving shaft.

[0041] When in use, the bidirectional screw 4 is driven to rotate by the servo motor 6, and the ball slider 5 can drive the support bar 301 to move horizontally to adjust its use position, thereby assisting the bag opening action.

[0042] For example, Figure 1 As shown, the utility model also includes that the bottom of the sliding frame 1 is connected to an electric push rod 8 through bolts, and the output end of the electric push rod 8 is connected to the mounting frame 2 through bolts.

[0043] When in use, the electric push rod 8 is used to drive the mounting frame 2 to move vertically to adjust its use height.

[0044] For example, Figure 1 As shown, the utility model also includes that a slide rail 9 is arranged on the top of the sliding frame 1 .

[0045] When in use, the slide rail 9 is used to facilitate sliding connection with the slide frame 1, and the use position of the bag-supporting mechanism is adjusted by the driving mechanism.

[0046] When the utility model is used, the operator first pushes the sliding frame 1 to the top of the packaging bag through the driving mechanism, manually starts the electric push rod 8 to drive the sliding frame 2 to slide vertically downward, so that the bag opening assembly 3 is located on both sides of the packaging bag opening, and manually starts the micro vacuum pump 7, so that the clamping plate 302, the guide groove 303 and the suction nozzle 304 can be used to adsorb the bag opening, and then manually starts the servo motor 6 to drive the bidirectional screw 4 to rotate, and uses the ball slider 6 to drive the support bar 301 to slide outward, thereby playing the effect of assisting in opening the bag opening of the packaging bag, so that the support rod 203 of the bag support mechanism can smoothly and accurately enter the packaging bag;

[0047] Then, the sliding frame 2 is driven by the electric push rod 8 again to push the support rod 203 into the packaging bag, and the electromagnet 208 is manually turned on. The magnetic repulsion generated by the power supply and the magnetic block 207 can push the sliding seat 202 and the support rod 203 to slide outward to both sides of the packaging bag, thereby forming an auxiliary bag-supporting action. At the same time, the elastic deformation of the coil spring 206 can be used to increase the bag-supporting range of the support rod 203 to adapt to packaging bags of different sizes, thereby greatly improving the flexibility of use.

[0048] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A bag-supporting mechanism for a packaging machine, characterized in that: It comprises a sliding frame (1), a mounting frame (2) and a bag opening assembly (3), wherein the mounting frame (2) is arranged at the bottom of the sliding frame (1), and the bag opening assembly (3) is slidably connected to the bottom of the mounting frame (2); The bag opening assembly (3) comprises a support bar (301), the bottom of the support bar (301) is connected to a clamping plate (302) by means of bolts, a guide groove (303) is provided on the inner side of the clamping plate (302), a suction nozzle (304) is provided on the surface of the clamping plate (302) at the periphery of the guide groove (303), and the suction nozzle (304) is connected to the guide groove (303).

2. A bag-supporting mechanism for a packaging machine according to claim 1, characterized in that: The bottom of the mounting frame (2) is provided with a slideway (201), a slide seat (202) is slidably connected in the slideway (201), the bottom of the slide seat (202) is connected to a rotating seat (204) by bolts, a support rod (203) is provided at the bottom of the rotating seat (204), both sides of one end of the support rod (203) are connected to a rotating shaft (205) by bolts, a coil spring (206) is sleeved on the outer periphery of the rotating shaft (205), one end of the coil spring (206) is connected to the rotating shaft (205) by welding, and the other end of the coil spring (206) is connected to the rotating seat (204) by a slot.

3. A bag-supporting mechanism for a packaging machine according to claim 1, characterized in that: The top of the mounting frame (2) is connected to the micro vacuum pump (7) via bolts, and the air inlet end of the micro vacuum pump (7) is connected to the guide groove (303) via a hose.

4. A bag-supporting mechanism for a packaging machine according to claim 2, characterized in that: A magnetic block (207) is fixedly mounted on one side of the slide seat (202) via a slot, an electromagnet (208) is connected to one side of the slide seat (202) in the slideway (201) via a bolt, and a return spring (209) is mounted on the other side of the slide seat (202) in the slideway (201) via a spring seat.

5. The bag-supporting mechanism for a packaging machine according to claim 1, characterized in that: Bidirectional screws (4) are installed on both sides of the mounting frame (2) via bearings, corresponding ball sliders (5) are arranged on the periphery of the bidirectional screws (4), and the ball sliders (5) are connected to the support bars (301) via bolts, and the surface of the mounting frame (2) is connected to the servo motor (6) via bolts, and the servo motor (6) is connected to the bidirectional screws (4) via a driving shaft.

6. A bag-supporting mechanism for a packaging machine according to claim 1, characterized in that: The bottom of the sliding frame (1) is connected to an electric push rod (8) via bolts, and the output end of the electric push rod (8) is connected to the mounting frame (2) via bolts.

7. A bag-supporting mechanism for a packaging machine according to claim 1, characterized in that: A slide rail (9) is provided on the top of the sliding frame (1).

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