Sucking disc mechanism capable of opening bag opening of packaging bag

Abstract

The utility model relates to the field of packaging equipment, and discloses a suction cup mechanism for opening a packaging bag mouth, which comprises a supporting table, the top end of the supporting table is provided with a suction cup mechanism, the suction cup mechanism comprises a supporting assembly and an adsorption assembly, the supporting assembly comprises a hydraulic rod, the top end of an output shaft of the hydraulic rod is fixedly connected with a supporting plate, and the top end of the output shaft of the hydraulic rod is fixedly connected with the suction assembly. An air suction pipe is installed at the top end of the supporting plate, the adsorption assembly comprises a suction cup pipe, the suction cup pipe is fixedly connected to the top end of the air suction pipe, the outer wall of the suction cup pipe is sleeved with a supporting block, the top end of the supporting block is fixedly connected with a lower suction cup, and the top end of the lower suction cup is fixedly connected with an upper suction cup. According to the suction cup device, the suction force of the suction cup can be increased through the arrangement of the lateral opening, meanwhile, the upper limiting ring and the lower limiting ring are arranged to limit relative movement between the suction cup pipe and the supporting block, and when the hydraulic rod is started to drive the suction cup pipe to move, the situation that the upper suction cup is separated from the surface of a packaging bag due to too large instant tension can be prevented.

Description

Technical Field

[0001] The utility model relates to the field of packaging equipment, in particular to a suction cup mechanism for opening a packaging bag mouth. Background Art

[0002] In existing packaging equipment, in the process of automatic packaging of packaging bags, the opening of the packaging bag and the suction of the packaging bag are crucial. Currently, in the common bag suction and bag opening processing methods, a suction cup combination is generally used to pull the bag opening through the suction cup, and then the bag opening is driven to open by moving the suction cup.

[0003] In the existing technology, most mechanisms directly adopt a suction cup hardware plus a suction cup structure. Since the air hole of the suction cup hardware is too small, when sucking the soft bag, the suction cup and the bag surface cannot fully contact, resulting in insufficient suction, insufficient negative pressure, insufficient adsorption capacity, etc., which leads to the packaging bag falling, the bag opening cannot be successfully opened, and the efficiency is low. Therefore, a suction cup mechanism for opening the bag opening of the packaging bag is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a suction cup mechanism with an open bag opening, aiming to improve the problem in the prior art that "the suction cup combination in the prior art has poor adsorption effect when adsorbing a packaging bag with a relatively soft body."

[0005] The top end of the support block is fixedly connected to the lower suction cup, and the top end of the lower suction cup is fixedly connected to the upper suction cup, and the outer wall of the suction cup tube is fixedly connected to the air guide port near the top end position of the air guide port, and the top end of the suction cup tube is provided with an adjusting component, the outer wall of the suction cup tube is fixedly connected to the lower limit ring, the outer wall of the suction cup tube is fixedly connected to the lower limit ring near the bottom end of the air guide port, and the top end of the support block is fixedly connected to the upper limit ring

[0006] As a further description of the above technical solution:

[0007] The adjustment component includes a wind shield sleeve, which is rotatably connected to the inner wall of the suction cup tube. The outer wall of the wind shield sleeve is provided with an air suction groove, and the air suction groove is adapted to the air guide port.

[0008] As a further description of the above technical solution:

[0009] The top end of the wind shield is fixedly connected with a spiral block, and the spiral block penetrates and is rotatably connected to the top end of the suction cup tube.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the spiral block is provided with an arc groove, the outer wall of the spiral block is sleeved with an extrusion sleeve, the inner wall of the extrusion sleeve is fixedly connected with a ball block, and the ball block slides on the inner wall of the arc groove.

[0012] As a further description of the above technical solution:

[0013] The top end of the suction cup tube is fixedly connected with a sliding sleeve, and the extrusion sleeve slides on the inner wall of the sliding sleeve.

[0014] As a further description of the above technical solution:

[0015] The bottom end of the extrusion sleeve is fixedly connected with a return spring, and the bottom end of the return spring is fixedly connected to the inner wall of the upper surface of the suction cup tube.

[0016] As a further description of the above technical solution:

[0017] The adsorption components are provided in multiple groups, and the multiple groups of adsorption components are symmetrically arranged with the center line of the support plate as the symmetry axis.

[0018] As a further description of the above technical solution:

[0019] The suction cup mechanism is provided with multiple groups, and another group of the suction cup mechanism is arranged at the top end of the inner wall of the support platform. The left end of the suction pipe is installed with a connector, and the bottom end of the hydraulic rod is fixedly connected to the inner wall of the support platform.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the side opening is adopted to increase the adsorption force of the suction cup. At the same time, an upper limit ring and a lower limit ring are provided to limit the relative movement between the suction cup tube and the support block. When the hydraulic rod is started to drive the suction cup tube to move, the upper suction cup can be prevented from being separated from the surface of the packaging bag due to excessive instantaneous pulling force. The overall device has a good adsorption effect.

[0022] 2. In the present invention, by setting an adjustment component, in the initial state of adsorption, the entire device will adsorb the outer wall of the packaging bag with a large suction force. When the outer wall of the packaging bag is in contact with the inner wall of the suction cup, the outer wall of the packaging bag will squeeze the lower extrusion sleeve and drive the entire air guide port to be blocked, thereby preventing the outer wall of the packaging bag from being damaged by excessive adsorption force. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the suction cup mechanism in the present invention;

[0025] Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of the adsorption component in the present invention;

[0026] Figure 4 This is a schematic diagram of a three-dimensional structural cross-section of the adjustment component in the present invention.

[0027] Legend:

[0028] 1. Support platform; 2. Suction cup mechanism; 21. Support assembly; 211. Hydraulic rod; 212. Support plate; 213. Suction pipe; 214. Connector; 22. Adsorption assembly; 221. Suction cup tube; 222. Lower limit ring; 223. Upper limit ring; 224. Air guide port; 225. Support block; 226. Slide groove; 227. Lower suction cup; 228. Upper suction cup; 23. Adjustment assembly; 231. Wind shield; 232. Suction groove; 233. Spiral block; 234. Arc groove; 235. Slide sleeve; 236. Return spring; 237. Extrusion sleeve; 238. Ball block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1 - Figure 3The present invention provides an embodiment of a suction cup mechanism for opening a packaging bag, comprising a support platform 1 for supporting the entire device, a suction cup mechanism 2 for adsorbing the packaging bag provided on the top of the support platform 1, the suction cup mechanism 2 comprising a support component 21 for providing tension, and an adsorption component 22 for adsorbing the outer wall of the packaging bag, the support component 21 comprising a hydraulic rod 211 for driving the entire suction cup mechanism 2 to move up and down, a support plate 212 for supporting the adsorption component 22 being fixedly connected to the top of the output shaft of the hydraulic rod 211, and an air intake pipe 213 for air circulation being installed on the top of the support plate 212 The adsorption component 22 includes a suction cup tube 221 for air circulation. The suction cup tube 221 is fixedly connected to the top of the suction pipe 213. The outer wall of the suction cup tube 221 is sleeved with a support block 225 for supporting the lower suction cup 227. The top of the support block 225 is fixedly connected to the lower suction cup 227 for supporting the upper suction cup 228. The top of the lower suction cup 227 is fixedly connected to the upper suction cup 228 for creating a closed space. The upper suction cup 228 is made of rubber and has good elastic deformation ability. When the upper suction cup 228 is in contact with the outer wall of the packaging bag, the air inside the upper suction cup 228 can be extracted. The upper suction cup 228 can be driven to fit the outer wall of the packaging bag. The outer wall of the suction cup tube 221 is provided with an air guide port 224 for air to pass through near the top. By providing multiple sets of horizontal air guide ports 224, compared with the traditional single-port suction cup, it can be more convenient for air flow and is not prone to blockage. The top of the suction cup tube 221 is provided with an adjustment component 23 for automatically controlling the suction force. The outer wall of the suction cup tube 221 is fixedly connected to a lower limit ring 222 for limiting the movement of the support block 225. The outer wall of the suction cup tube 221 is fixedly connected to the bottom end of the air guide port 224 for limiting the support block 2 25 is an upper limit ring 223 separated from the suction cup tube 221, and a slide groove 226 is provided on the top of the support block 225 to accommodate the upper limit ring 223. The upper limit ring 223 slides on the inner wall of the slide groove 226. By setting the slide groove 226, when the suction cup tube 221 and the support block 225 move relative to each other, the suction cup tube 221 will not directly pull the support block 225 to move, but will first drive the upper limit ring 223 to move, and then squeeze the inner wall of the slide groove 226 through the upper limit ring 223 to drive the suction cup tube 221 to move. This can prevent the starting tension from being too large, causing the packaging bag to separate from the upper suction cup 228.

[0031] Reference Figure 2 - Figure 4The regulating component 23 includes a windshield 231 for limiting the suction force of the adsorption component 22. The windshield 231 is rotatably connected to the inner wall of the suction cup tube 221. The suction force can be limited by using the windshield 231 to block the air guide port 224. The outer wall of the windshield 231 is provided with an air suction groove 232 for air to pass through. The air suction groove 232 is adapted to the air guide port 224. When the air suction groove 232 is aligned with the air guide port 224, air can pass through the air suction groove 232 and the air guide port 224. The top of the windshield 231 is fixedly connected to drive the windshield 231 to rotate. The spiral block 233 passes through and is rotatably connected to the top of the suction cup tube 221. The outer wall of the spiral block 233 is provided with an arc groove 234 for driving the spiral block 233 to rotate. The outer wall of the spiral block 233 is sleeved with an extrusion sleeve 237 for driving the ball block 238 to move. The inner wall of the extrusion sleeve 237 is fixedly connected with the ball block 238. The ball block 238 slides on the inner wall of the arc groove 234. By using the ball block 238 to squeeze the inner wall of the arc groove 234, the spiral block 233 can be driven to rotate, and the rotation of the spiral block 233 can drive the wind shield sleeve 231 to rotate.

[0032] Reference Figure 2 - Figure 4 The top of the suction cup tube 221 is fixedly connected with a sliding sleeve 235 for supporting the movement of the extrusion sleeve 237. The extrusion sleeve 237 slides on the inner wall of the sliding sleeve 235. By using the extrusion sleeve 237 to guide the sliding sleeve 235, the sliding sleeve 235 can keep moving vertically up and down. The bottom end of the extrusion sleeve 237 is fixedly connected with a return spring 236 for driving the extrusion sleeve 237 to move upward and reset. The bottom end of the return spring 236 is fixedly connected to the inner wall of the upper surface of the suction cup tube 221. The return spring 236 will always push the extrusion sleeve 237 upward. The adsorption assembly 22 is provided with multiple groups, and the multiple groups of adsorption assemblies 22 are arranged in the middle of the support plate 212. The center line is symmetrically arranged along the axis of symmetry. Multiple groups of adsorption components 22 can simultaneously adsorb multiple points on the outer wall of the packaging bag. Multiple groups of suction cup mechanisms 2 are provided. Another group of suction cup mechanisms 2 is arranged at the top of the inner wall of the support platform 1. The two groups of suction cup mechanisms 2 can adsorb the upper and lower ends of the packaging bag respectively, so that the packaging bag can be driven to open. The left end of the suction pipe 213 is equipped with a connector 214 for connecting the suction device. The suction device is a prior art and can start to pump air when the power is turned on. Due to the prior art and the fact that people in this field can implement it, this case will not be described in detail. The bottom end of the hydraulic rod 211 is fixedly connected to the inner wall of the support platform 1.

[0033] Working principle: When the packaging bag is at the top center position of the support platform 1, two sets of hydraulic rods 211 can be started to drive multiple sets of upper suction cups 228 to fit the outer wall of the packaging bag at the same time, and then the suction component can be started to extract the air between the upper suction cup 228 and the packaging bag, so that the upper suction cup 228 can be driven to fit the outer wall of the packaging bag, and at the same time, the outer wall of the packaging bag can be driven to move toward the inside of the upper suction cup 228. When the outer wall of the packaging bag is squeezed into the adjustment component 23, the adjustment component 23 will be forced to move downward. The downward movement of the adjustment component 23 will squeeze the inner wall of the arc groove 234 through the ball block 238 to drive the spiral block 233 to rotate, and the spiral block 233 will drive the wind shield sleeve 231 to rotate, so that the wind shield sleeve 231 can be used to block the air guide port 224, thereby reducing the suction force of the device.

[0034] When the upper suction cup 228 is stably fitted with the outer wall of the packaging bag, the hydraulic rod 211 can be started to pull the support plate 212 to drive the suction pipe 213 to move outward. The suction pipe 213 will pull the upper limit ring 223 to move through the suction cup tube 221. The upper limit ring 223 will move outward first, then squeeze the inner wall of the slide groove 226 to drive the support block 225 to move, and then the support block 225 will pull the lower suction cup 227 to drive the upper suction cup 228 to move. Multiple groups of upper suction cups 228 will pull the packaging bag upward or downward to open the packaging bag.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A suction cup mechanism for opening a packaging bag, comprising a support platform (1), characterized in that: A suction cup mechanism (2) is provided at the top of the support platform (1), the suction cup mechanism (2) comprising a support assembly (21) and an adsorption assembly (22), the support assembly (21) comprising a hydraulic rod (211), the top of the output shaft of the hydraulic rod (211) being fixedly connected to a support plate (212), the top of the support plate (212) being provided with an air suction pipe (213), the adsorption assembly (22) comprising a suction cup pipe (221), the suction cup pipe (221) being fixedly connected to the top of the air suction pipe (213), the outer wall of the suction cup pipe (221) being sleeved with a support block (225), the top of the support block (225) being fixedly connected to the top of the air suction pipe (213), and the outer wall of the suction cup pipe (221) being sleeved with a support block (225). A lower suction cup (227) is connected, the top of the lower suction cup (227) is fixedly connected to an upper suction cup (228), an outer wall of the suction cup tube (221) is provided with an air guide port (224) near the top, an adjustment component (23) is provided at the top of the suction cup tube (221), a lower limit ring (222) is fixedly connected to the outer wall of the suction cup tube (221), an upper limit ring (223) is fixedly connected to the bottom of the outer wall of the suction cup tube (221) near the air guide port (224), a slide groove (226) is provided at the top of the support block (225), and the upper limit ring (223) slides on the inner wall of the slide groove (226).

2. The suction cup mechanism for opening a packaging bag according to claim 1, characterized in that: The adjustment component (23) comprises a wind shield sleeve (231), the wind shield sleeve (231) is rotatably connected to the inner wall of the suction cup tube (221), and the outer wall of the wind shield sleeve (231) is provided with an air suction groove (232), and the air suction groove (232) is adapted to the air guide port (224).

3. The suction cup mechanism for opening a packaging bag according to claim 2, characterized in that: The top end of the wind shield (231) is fixedly connected to a spiral block (233), and the spiral block (233) passes through and is rotatably connected to the top end of the suction cup tube (221).

4. The suction cup mechanism for opening a packaging bag according to claim 3, characterized in that: The outer wall of the spiral block (233) is provided with an arc groove (234), the outer wall of the spiral block (233) is sleeved with an extrusion sleeve (237), the inner wall of the extrusion sleeve (237) is fixedly connected with a ball block (238), and the ball block (238) slides on the inner wall of the arc groove (234).

5. The suction cup mechanism for opening the packaging bag according to claim 4, characterized in that: The top end of the suction cup tube (221) is fixedly connected to a sliding sleeve (235), and the extrusion sleeve (237) slides on the inner wall of the sliding sleeve (235).

6. The suction cup mechanism for opening a packaging bag according to claim 4, characterized in that: The bottom end of the extrusion sleeve (237) is fixedly connected to a return spring (236), and the bottom end of the return spring (236) is fixedly connected to the inner wall of the upper surface of the suction cup tube (221).

7. The suction cup mechanism for opening a packaging bag according to claim 1, characterized in that: The adsorption components (22) are provided in multiple groups, and the multiple groups of adsorption components (22) are symmetrically arranged with the center line of the support plate (212) as the symmetry axis.

8. The suction cup mechanism for opening a packaging bag according to claim 1, characterized in that: The suction cup mechanisms (2) are provided in multiple groups, and another group of the suction cup mechanisms (2) is provided at the top end of the inner wall of the support platform (1). A connector (214) is installed at the left end of the suction pipe (213), and the bottom end of the hydraulic rod (211) is fixedly connected to the inner wall of the support platform (1).

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