Mounting device for one-way ventilation valve of packaging bag

Abstract

The utility model provides a mounting device for a one-way ventilation valve of a packaging bag. The mounting device comprises a mounting frame, a mounting and placing assembly, a switching structure, an elastic extrusion mounting assembly and a driving structure. The mounting and placing assembly is provided with a placing groove for placing the one-way ventilation valve and a mounting part for mounting a packaging bag; the switching structure is arranged above the mounting and placing assembly and is slidably arranged on the mounting frame in the vertical direction; the elastic extrusion mounting assembly is arranged between the mounting placement assembly and the switching structure, is detachably connected with the switching structure and is used for performing elastic extrusion mounting on the packaging bag and the one-way ventilation valve; the fixed end of the driving structure is arranged on the mounting frame, and the telescopic end is connected with the switching structure. The installation device for the one-way ventilation valve of the packaging bag aims at solving the problems that in the prior art, in the extrusion hot melting process of the packaging bag and the one-way ventilation valve, the packaging bag moves downwards, so that the packaging bag deforms, and the quality of the packaging bag becomes poor.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging bag production equipment, and in particular relates to an installation device for a one-way air-permeable valve of a packaging bag. Background Art

[0002] Packaging bags are bags used to package various items and are widely used in daily life and industrial production. For packaging bags containing food and other products, in order to ensure the shelf life of the products, a one-way air valve is usually installed on the packaging bag so that the packaging bag can only let out air but not let in air, so as to ensure the discharge of gas in the bag and prevent external air from entering. Generally, the one-way air valve is welded to the inner side of the packaging bag through a thermoforming device.

[0003] In the prior art, the thermoforming device is usually provided with a fixed installation part, a placement slot is provided at the end of the installation part, and a hot melt installation structure is provided above the installation part. The staff first puts the one-way air-permeable valve into the placement slot, and then sets the packaging bag with one end open on the end of the installation part, and moves the hot melt installation structure downward to contact the packaging bag, so as to extrude and hot melt the packaging bag and the one-way air-permeable valve, and install the one-way air-permeable valve on the packaging bag. In order to avoid the rigid contact between the hot melt installation structure and the placement slot, a buffer elastic part is often provided below the placement slot. During the extrusion and hot melt process, the packaging bag will move with the placement slot, generating a downward movement trend or stroke, causing the packaging bag to deform, affecting the installation quality of the one-way air-permeable valve, and the quality of the packaging bag deteriorates, and the practicality is poor. Utility Model Content

[0004] The utility model provides an installation device for a one-way air-permeable valve of a packaging bag, aiming to solve the problem in the prior art that during the process of extruding and hot-melting the packaging bag and the one-way air-permeable valve, the packaging bag moves downward, causing deformation of the packaging bag and deterioration of the quality of the packaging bag.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a mounting device for a one-way air-permeable valve of a packaging bag, comprising:

[0006] Mounting frame;

[0007] An installation and placement component is arranged on the installation frame and has a placement groove for placing the one-way air permeable valve and an installation portion for installing the packaging bag;

[0008] The transfer structure is arranged above the installation and placement component and is slidably arranged on the installation frame along the vertical direction;

[0009] An elastic extrusion installation component is arranged between the installation and placement component and the adapter structure, and is detachably connected to the adapter structure, and is used for elastic extrusion installation of the packaging bag and the one-way air-permeable valve;

[0010] The driving structure comprises a fixed end and a telescopic end, wherein the fixed end is arranged on the mounting frame, and the telescopic end is connected to the transfer structure.

[0011] In a possible implementation, the elastic extrusion mounting assembly includes:

[0012] A connecting plate, arranged above the mounting and placing component;

[0013] An extrusion hot-melt structure is installed on the connecting plate and is located below the connecting plate, and is used for extruding and installing the packaging bag and the one-way air-permeable valve;

[0014] A plurality of first sliding bars are provided, each of the first sliding bars is arranged on the connecting plate at intervals, and each of the first sliding bars is arranged along the vertical direction;

[0015] A plurality of connecting rods are provided, which are arranged one by one corresponding to each of the first sliding rods, each of the connecting rods is arranged along the vertical direction, and each of the connecting rods is slidably connected to the corresponding first sliding rod;

[0016] A plurality of springs are provided, and are arranged one by one corresponding to each of the first sliding rods. Each of the springs is sleeved on the corresponding first sliding rod and is limited between the connecting rod and the connecting plate;

[0017] Wherein, the connecting rod is provided with a sliding groove adapted to the first sliding rod.

[0018] In a possible implementation, a plurality of mounting grooves are provided on the connection plate, each of the mounting grooves is provided in a one-to-one correspondence with each of the first sliding bars, and each of the first sliding bars is respectively provided in the corresponding mounting groove.

[0019] In a possible implementation, the switching structure includes:

[0020] An adapter plate connected to the telescopic end of the drive structure;

[0021] At least two second sliding bars are provided, each of which is arranged in a vertical direction, the lower end of each of which is connected to the adapter plate, and each of which is slidably connected to the mounting frame;

[0022] There are multiple sleeve rods, each of which is connected to the adapter plate, each of which is arranged in a one-to-one correspondence with each of the connecting rods, and each of which is sleeved on the corresponding connecting rod;

[0023] Wherein, the mounting frame is provided with a plurality of through holes for the second sliding rods to pass through.

[0024] In a possible implementation, the installation device for the one-way air-permeable valve of the packaging bag further includes a plurality of locking members for locking and fixing each of the sleeve rods to the corresponding connecting rod.

[0025] In a possible implementation, each of the locking members is a fixing pin, the sleeve rod is provided with a first plugging hole matched with the fixing pin, and the connecting rod is provided with a second plugging hole matched with the fixing pin.

[0026] In a possible implementation, each sleeve rod is provided with a sliding groove, and each connecting rod is provided with a sliding block adapted to the sliding groove.

[0027] In a possible implementation, the installation device for the one-way air-permeable valve of the packaging bag further includes a limiting structure slidably disposed on the mounting frame, for limiting the position of the packaging bag.

[0028] The beneficial effect of the installation device for the one-way air-permeable valve of the packaging bag provided by the utility model is that: compared with the prior art, the installation and placement component includes a placement groove and a mounting portion, so that the one-way air-permeable valve is first placed in the placement groove, and then the packaging bag is installed at the mounting portion. The installation and placement component is arranged on the mounting frame, which is convenient for the placement of the one-way air-permeable valve and the installation of the packaging bag. A driving structure is also arranged on the mounting frame, and the telescopic end of the driving structure is connected to the adapter structure, which is used to drive the adapter structure to move in the vertical direction. An elastic extrusion installation component is arranged connected to the adapter structure, and the elastic extrusion installation component is arranged above the installation and placement component. The elastic extrusion installation component moves in the vertical direction with the adapter structure, so that the packaging bag and the one-way air-permeable valve are elastically extruded and installed, so that the one-way air-permeable valve is installed on the packaging bag. In the process of elastically extruding and installing the packaging bag and the one-way air-permeable valve, the elastic extrusion installation component will have an upward movement trend or stroke, and the packaging bag is installed at the mounting portion The position remains unchanged, thereby ensuring the installation quality of the one-way air-permeable valve, and the installation bag will not be deformed, thereby ensuring the quality of the packaging bag, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of a mounting device for a one-way air-permeable valve of a packaging bag provided by an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of the matching structure of the adapter structure and the elastic extrusion installation assembly of the installation device of the one-way air-permeable valve for the packaging bag provided by the embodiment of the utility model;

[0031] Figure 3 A schematic diagram of the structure of an elastic extrusion installation assembly of an installation device for a one-way air-permeable valve of a packaging bag provided by an embodiment of the utility model;

[0032] Figure 4 A schematic diagram of a sleeve rod structure of a mounting device for a one-way air-permeable valve of a packaging bag provided by an embodiment of the utility model;

[0033] Figure 5 A schematic diagram of the matching structure of a sleeve rod and a connecting rod of a mounting device for a one-way air-permeable valve of a packaging bag provided in an embodiment of the utility model.

[0034] Description of reference numerals:

[0035] 10. Mounting frame; 20. Mounting and placement assembly; 30. Adapter structure; 31. Adapter plate; 32. Second slide bar; 33. Sleeve rod; 331. First plug hole; 332. Slide groove; 40. Elastic extrusion mounting assembly; 41. Connecting plate; 411. Mounting groove; 42. Extrusion hot-melt structure; 43. First slide bar; 44. Connecting rod; 441. Sliding block; 45. Spring; 50. Driving structure; 60. Locking member; 70. Limiting structure; 71. Limiting plate; 72. Sliding plate; 73. Locking bolt. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] It should be noted that the directions or positional relationships indicated by terms such as “length”, “width”, “height”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “head” and “tail” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0038] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "fixation", "setting" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0040] Please also read Figures 1 to 5 , the installation device for the one-way air-permeable valve of the packaging bag provided by the utility model is now described. The installation device for the one-way air-permeable valve of the packaging bag comprises a mounting frame 10, a mounting and placing assembly 20, a transfer structure 30, an elastic extrusion mounting assembly 40 and a driving structure 50. The mounting and placing assembly 20 is arranged on the mounting frame 10, and has a placement groove for placing the one-way air-permeable valve and a mounting portion for installing the packaging bag. The transfer structure 30 is arranged above the mounting and placing assembly 20, and is slidably arranged on the mounting frame 10 along the vertical direction. The elastic extrusion mounting assembly 40 is arranged between the mounting and placing assembly 20 and the transfer structure 30, and is detachably connected to the transfer structure 30, and is used for elastically extruding and installing the packaging bag and the one-way air-permeable valve. The driving structure 50 has a fixed end and a telescopic end. The fixed end is arranged on the mounting frame 10, and the telescopic end is connected to the transfer structure 30.

[0041] In this embodiment, the installation and placement component 20 includes a placement slot and a mounting portion, the one-way air-permeable valve is placed in the placement slot, and the packaging bag is installed at the mounting portion. A driving structure 50 is provided on the mounting frame 10, and the adapter structure 30 is connected to the telescopic end of the driving structure 50, and the driving structure 50 drives the adapter structure 30 to move in the vertical direction. An elastic extrusion installation component 40 is provided connected to the adapter structure 30, and the elastic extrusion installation component 40 is arranged above the installation and placement component 20. The elastic extrusion installation component 40 moves in the vertical direction with the adapter structure 30, thereby elastically extruding and installing the packaging bag and the one-way air-permeable valve, so that the one-way air-permeable valve is installed on the packaging bag.

[0042] Compared with the prior art, the installation device for the one-way air-permeable valve of the packaging bag provided by the embodiment of the utility model has an installation and placement component 20 including a placement groove and a mounting portion, so that the one-way air-permeable valve is first placed in the placement groove, and then the packaging bag is installed at the mounting portion. The installation and placement component 20 is arranged on the mounting frame 10, which is convenient for placing the one-way air-permeable valve and installing the packaging bag. A driving structure 50 is also arranged on the mounting frame 10, and the telescopic end of the driving structure 50 is connected to the transfer structure 30, which is used to drive the transfer structure 30 to move in the vertical direction. An elastic extrusion mounting component 40 is connected to the adapter structure 30. The elastic extrusion mounting component 40 is arranged above the mounting and placing component 20. The elastic extrusion mounting component 40 moves along the vertical direction with the adapter structure 30, thereby elastically extruding and mounting the packaging bag and the one-way air valve to install the one-way air valve on the packaging bag. In the process of elastically extruding and mounting the packaging bag and the one-way air valve, the elastic extrusion mounting component 40 will have an upward movement tendency or stroke, and the packaging bag remains in the same position at the mounting portion, thereby ensuring the installation quality of the one-way air valve, and the mounting bag will not be deformed, thereby ensuring the quality of the packaging bag and having good practicality.

[0043] In the above embodiments, the placement groove and the mounting portion may adopt existing technologies.

[0044] In some embodiments, see Figures 1 to 3 The elastic extrusion installation assembly 40 includes a connecting plate 41, an extrusion hot melt structure 42, a first slide bar 43, a connecting rod 44 and a spring 45. The connecting plate 41 is arranged above the installation and placement assembly 20. The extrusion hot melt structure 42 is installed on the connecting plate 41 and is located below the connecting plate 41, and is used to extrude and install the packaging bag and the one-way breathable valve. There are multiple first slide bars 43, each of which is arranged on the connecting plate 41 at intervals, and each of which is arranged in the vertical direction. There are multiple connecting rods 44, which are arranged one by one with each first slide bar 43, each of which is arranged in the vertical direction, and each of which is slidably connected with the corresponding first slide bar 43. There are multiple springs 45, which are arranged one by one with each first slide bar 43, each of which is sleeved on the corresponding first slide bar 43 and limited between the connecting rod 44 and the connecting plate 41. Among them, the connecting rod 44 is provided with a slide groove 332 adapted to the first slide bar 43. Specifically, each connecting rod 44 is located above the connecting plate 41 , and the upper end of the connecting rod 44 is connected to the adapter structure 30 .

[0045] In this embodiment, a plurality of first sliding rods 43 are provided on the connecting plate 41, and each first sliding rod 43 is slidably connected to the corresponding connecting rod 44, and a spring 45 is sleeved on each first sliding rod 43, and the spring 45 is limited between the connecting rod 44 and the connecting plate 41, and the extrusion hot melt structure 42 is arranged below the connecting plate 41, so that in the process of the extrusion hot melt structure 42 extruding and installing the packaging bag and the one-way air valve, if the extrusion hot melt structure 42 and the connecting plate 41 move upward, the spring 45 is compressed, and when the extrusion installation is completed, under the action of the elastic force of the spring 45, the extrusion hot melt structure 42 and the connecting plate 41 return to their original positions, and the spring 45 is in a natural state at this time, thereby realizing the elastic extrusion installation of the packaging bag and the one-way air valve, ensuring the service life of the extrusion hot melt structure 42 and the installation and placement component 20, and ensuring the installation quality of the air-permeable installation valve.

[0046] In the above embodiment, the extruded hot melt structure 42 can adopt the existing technology, which will not be described in detail here.

[0047] In some embodiments, see Figure 3 The connecting plate 41 is provided with a plurality of mounting grooves 411, each mounting groove 411 is provided in one-to-one correspondence with each first slide bar 43, and each first slide bar 43 is respectively provided in the corresponding mounting groove 411. In this embodiment, the mounting groove 411 is provided on the connecting plate 41, and the first slide bar 43 and the spring 45 are both provided in the mounting groove 411, thereby protecting the first slide bar 43 and the spring 45, ensuring that the first slide bar 43 and the spring 45 are not damaged, and ensuring the service life.

[0048] In some embodiments, see Figure 2 , the adapter structure 30 includes an adapter plate 31, a second slide bar 32 and a sleeve rod 33. The adapter plate 31 is connected to the telescopic end of the driving structure 50, and at least two second slide bars 32 are provided, each second slide bar 32 is arranged in the vertical direction, the lower end of each second slide bar 32 is connected to the adapter plate 31, and each second slide bar 32 is slidably connected to the mounting frame 10. There are multiple sleeve rods 33, each sleeve rod 33 is connected to the adapter plate 31, each sleeve rod 33 is arranged in a one-to-one correspondence with each connecting rod 44, and each sleeve rod 33 is sleeved on the corresponding connecting rod 44. Among them, the mounting frame 10 is provided with a plurality of through holes for the second slide bar 32 to pass through. In this embodiment, the adapter plate 31 is connected to the telescopic end of the driving structure 50, and the adapter plate 31 is provided with a second slide bar 32, and the second slide bar 32 is slidably connected to the mounting frame 10, so that when the driving structure 50 drives the adapter plate 31 to move up and down, the second slide bar 32 also moves up and down. During the up and down movement of the second slide bar 32, the second slide bar 32 always penetrates the mounting frame 10. At least two second slide bars 32 are provided to enhance the stability of the adapter plate 31 during the up and down movement. A plurality of sleeve bars 33 are also provided on the adapter plate 31, and each sleeve bar 33 is sleeved on each connecting rod 44, thereby connecting the connecting plate 41 with the adapter plate 31.

[0049] In some embodiments, see Figure 2 The installation device for the one-way air-permeable valve of the packaging bag provided by the embodiment of the utility model further includes a plurality of locking members 60, each of which is used to lock and fix each sleeve rod 33 with the corresponding connecting rod 44. In this embodiment, the sleeve rod 33 and the connecting rod 44 are locked and fixed by the locking members 60, thereby ensuring the connection strength between the connecting plate 41 and the adapter plate 31.

[0050] In some embodiments, see Figure 2 Each locking member 60 is a fixing pin, a first plug hole 331 adapted to the fixing pin is provided on the sleeve rod 33, and a second plug hole adapted to the fixing pin is provided on the connecting rod 44. In this embodiment, when a one-way exhaust valve of different specifications is required, the extruded hot melt structure 42 needs to be replaced, and the sleeve rod 33 and the connecting rod 44 are locked and fixed by the fixing pin, which is convenient to operate and easy to install and remove the connecting plate 41.

[0051] In some embodiments, see Figure 4 and Figure 5 , each sleeve rod 33 is provided with a slide groove 332, and each connecting rod 44 is provided with a slider 441 adapted to the slide groove 332. In this embodiment, the slide groove 332 may be a C-shaped groove, the first plug hole 331 and the second plug hole are both cylindrical holes, and the central axis of the slide groove 332 is perpendicular to the central axis of the first plug hole 331. The slider 441 is adapted to the shape of the slide groove 332, and the central axis of the second plug hole is perpendicular to the central axis of the slider 441, so that it is easy to align the positions of the first plug hole 331 and the second plug hole during installation, and then lock them by the fixing pin, thereby improving the efficiency of installation.

[0052] In some embodiments, see Figure 1 The installation device of the one-way air-permeable valve for packaging bags provided in the embodiment of the utility model further includes a limiting structure 70, which is slidably arranged on the mounting frame 10 and is used to limit the packaging bag. In this embodiment, the limiting structure 70 is arranged on the mounting frame 10, so that in the process of installing the packaging bag, the limiting structure 70 is used to limit the packaging bag, so that the packaging bag can be quickly and accurately installed in place. For packaging bags of different specifications, the position of the limiting structure 70 can be adjusted to facilitate the installation of the packaging bag. Specifically, the limiting structure 70 can be moved by an operator to adjust the position of the limiting structure 70. The limiting structure 70 includes a limiting plate 71, a sliding plate 72 and a locking bolt 73. The sliding plate 72 is slidably arranged on the mounting frame 10, the limiting plate 71 is connected to the sliding plate 72, and the sliding plate 72 is provided with a threaded hole adapted to the locking bolt 73, and the sliding plate 72 is locked and fixed on the mounting frame 10 by the locking bolt 73.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mounting device for a one-way air-permeable valve of a packaging bag, characterized in that: include: Mounting frame; An installation and placement component is arranged on the installation frame and has a placement groove for placing the one-way air permeable valve and an installation portion for installing the packaging bag; The transfer structure is arranged above the installation and placement component and is slidably arranged on the installation frame along the vertical direction; An elastic extrusion installation component is arranged between the installation and placement component and the adapter structure, and is detachably connected to the adapter structure, and is used for elastic extrusion installation of the packaging bag and the one-way air-permeable valve; The driving structure comprises a fixed end and a telescopic end, wherein the fixed end is arranged on the mounting frame, and the telescopic end is connected to the transfer structure.

2. The installation device for a one-way air-permeable valve for a packaging bag according to claim 1, characterized in that: The elastic extrusion mounting assembly comprises: A connecting plate, arranged above the mounting and placing component; An extrusion hot-melt structure is installed on the connecting plate and is located below the connecting plate, and is used for extruding and installing the packaging bag and the one-way air-permeable valve; A plurality of first sliding bars are provided, each of the first sliding bars is arranged on the connecting plate at intervals, and each of the first sliding bars is arranged along the vertical direction; A plurality of connecting rods are provided, which are arranged one by one corresponding to each of the first sliding rods, each of the connecting rods is arranged along the vertical direction, and each of the connecting rods is slidably connected to the corresponding first sliding rod; A plurality of springs are provided, and are arranged one by one corresponding to each of the first sliding rods. Each of the springs is sleeved on the corresponding first sliding rod and is limited between the connecting rod and the connecting plate; Wherein, the connecting rod is provided with a sliding groove adapted to the first sliding rod.

3. The installation device for a one-way air-permeable valve for a packaging bag according to claim 2, characterized in that: The connecting plate is provided with a plurality of mounting grooves, each of the mounting grooves is arranged in one-to-one correspondence with each of the first sliding bars, and each of the first sliding bars is respectively arranged in the corresponding mounting groove.

4. The installation device for a one-way air-permeable valve for a packaging bag according to claim 2, characterized in that: The switching structure comprises: An adapter plate connected to the telescopic end of the drive structure; At least two second sliding bars are provided, each of which is arranged in a vertical direction, the lower end of each of which is connected to the adapter plate, and each of which is slidably connected to the mounting frame; There are multiple sleeve rods, each of which is connected to the adapter plate, each of which is arranged in a one-to-one correspondence with each of the connecting rods, and each of which is sleeved on the corresponding connecting rod; Wherein, the mounting frame is provided with a plurality of through holes for the second sliding rods to pass through.

5. The installation device for a one-way air-permeable valve for a packaging bag as claimed in claim 4, characterized in that: The installation device for the one-way air-permeable valve of the packaging bag also includes a plurality of locking members for locking and fixing each of the sleeve rods and the corresponding connecting rod.

6. The installation device for a one-way air-permeable valve for a packaging bag as claimed in claim 5, characterized in that: Each of the locking members is a fixing pin, the sleeve rod is provided with a first plugging hole matched with the fixing pin, and the connecting rod is provided with a second plugging hole matched with the fixing pin.

7. The installation device for a one-way air-permeable valve for a packaging bag as claimed in claim 6, characterized in that: Each sleeve rod is provided with a sliding groove, and each connecting rod is provided with a sliding block adapted to the sliding groove.

8. The installation device for a one-way air-permeable valve for a packaging bag according to claim 1, characterized in that: The installation device for the one-way air-permeable valve of the packaging bag also includes a limiting structure slidably arranged on the installation frame, which is used to limit the packaging bag.

Images