Film bag opening device

Abstract

The utility model provides a film bag opening device which comprises a base, a first plate body and a second plate body, and the first plate body and the second plate body are arranged on the base side by side, are both connected with the base in a sliding mode and are used for sliding till the first plate body and the second plate body are closed so that a film bag can be sleeved with the first plate body and the second plate body. The middle of the movable part is rotatably arranged on the base, the first end of the movable part is connected with the first plate body, and the second end of the movable part extends in the direction close to the second plate body; and the adjusting device is connected with the second end of the movable part and used for pushing the second end of the movable part to drive the first end of the movable part to rotate, so that the first plate body and the second plate body are separated to open the film bag. According to the film bag opening device, manual opening is not needed in the whole process through cooperation of the movable part, the adjusting device, the first plate body and the second plate body, mechanization and automation of the film bag opening process are achieved, and then working efficiency and opening accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing machinery, in particular to a film bag opening device. Background Art

[0002] Film bags are often used in daily life. Before processing, the upper and lower film layers of the film bags that are adsorbed together usually need to be blown apart to form a hollow columnar structure inside. Finally, the blown film bags are placed on a stretching device for hot melting and other processing.

[0003] However, most of the existing expansion devices are a support body with a fixed size, and the film bag is prone to displacement when it is directly mounted on the support body, which is not convenient for subsequent processing; moreover, the support body with a fixed size cannot meet the needs of different film bags, so that the scale and size of the produced film bags are monotonous; and for a small number of expansion devices, although their opening degree is adjustable, they all need to manually adjust the positions of multiple support bodies to expand the film bag. Manual operation not only consumes a lot of manpower, but also the adjustment accuracy is difficult to control, which greatly increases the difficulty of operation and reduces production efficiency. Utility Model Content

[0004] In order to overcome the defects of the above-mentioned prior art, the utility model provides a film bag opening device, which, through the cooperation between the movable part, the adjustment device, the first plate body and the second plate body, makes the whole process without manual opening, realizes the mechanization and automation of the film bag opening process, thereby improving the work efficiency and opening accuracy. The specific technical solution is as follows:

[0005] A film bag opening device, comprising:

[0006] Base,

[0007] A first plate body and a second plate body, wherein the first plate body and the second plate body are arranged side by side on the base and are both slidably connected to the base, and are used to slide until the first plate body and the second plate body are closed to cover the film bag;

[0008] A movable member, wherein a middle portion of the movable member is rotatably disposed on the base, a first end of the movable member is connected to the first plate body, and a second end of the movable member extends toward a direction close to the second plate body;

[0009] The adjusting device is connected to the second end of the movable member and is used for pushing the second end of the movable member to drive the first end of the movable member to rotate, so as to separate the first plate body from the second plate body to open the film bag.

[0010] In a specific embodiment, a connecting shaft is provided in the middle of the movable member, the movable member is rotatably arranged on the base through the connecting shaft, and the first end of the movable member and the second end of the movable member are respectively located on both sides of the connecting shaft;

[0011] The first end of the movable member has a first fulcrum portion, and the first fulcrum portion is connected to the first plate body;

[0012] The second end of the movable member has a second fulcrum portion and a third fulcrum portion, the second fulcrum portion is located between the first fulcrum portion and the third fulcrum portion, and the second fulcrum portion is connected to the second plate body;

[0013] The third fulcrum is connected to the adjusting device, and the adjusting device is used to push the third fulcrum to drive the first fulcrum and the second fulcrum to rotate around the connecting axis, so that the first fulcrum pushes the first plate body away, and the second fulcrum pushes the second plate body away.

[0014] In a specific embodiment, the movable member includes a follower swing rod, and the first fulcrum portion, the connecting shaft, the second fulcrum portion and the third fulcrum portion are sequentially arranged along the length direction of the follower swing rod;

[0015] A line connecting the second fulcrum portion and the connecting axis is a first straight line, a line connecting the second fulcrum portion and the third fulcrum portion is a second straight line, and a preset angle is formed between the first straight line and the second straight line.

[0016] In a specific embodiment, the preset angle is between 120° and 180°.

[0017] In a specific embodiment, the distance from the first fulcrum to the connecting axis is equal to the distance from the second fulcrum to the connecting axis.

[0018] In a specific embodiment, at least one elastic member is further included, one end of the elastic member is connected to the first plate body, and the other end of the elastic member is connected to the second plate body, and is used to drive the first plate body and the second plate body to close when the movable member is reset.

[0019] In a specific embodiment, at least one of the elastic members includes one elastic member, and the elastic members are respectively connected to the middle part of the first plate body and the middle part of the second plate body;

[0020] Or at least one of the elastic members includes two elastic members, and the two elastic members are arranged at intervals along the length direction of the first plate body, and extend from the first plate body to be connected to the second plate body respectively.

[0021] In a specific embodiment, the adjusting device includes a base, an adjusting block and a driving member, wherein the adjusting block is slidably disposed on the base and connected to the movable member; the driving member is located on a side of the adjusting block away from the movable member, and is used to drive the adjusting block to slide to drive the movable member to rotate.

[0022] In a specific embodiment, a limiting groove is provided on the base, and the limiting groove is adapted to the adjusting block and is used to limit the adjusting block from sliding in the limiting groove.

[0023] In a specific embodiment, a slide rail is provided on the base, and a slider is provided at the first end of the first plate body and the first end of the second plate body, and the slider is adapted to the slide rail and is used to make the first plate body and the second plate body slide on the base so as to separate or close the first plate body and the second plate body;

[0024] The second end of the first plate body and the second end of the second plate body cooperate with each other to be used for covering the film bag when closed.

[0025] The utility model has at least the following beneficial effects:

[0026] The utility model provides a film bag opening device, comprising: a base, a first plate body and a second plate body, the first plate body and the second plate body are arranged side by side on the base, and are both slidably connected to the base and are used to slide until the first plate body and the second plate body are closed to cover the film bag; a movable part, the middle part of the movable part is rotatably arranged on the base, the first end of the movable part is connected to the first plate body, and the second end of the movable part extends in a direction close to the second plate body; an adjusting device is connected to the second end of the movable part and is used to push the second end of the movable part to drive the first end of the movable part to rotate, so that the first plate body is separated from the second plate body to open the film bag. The utility model realizes the installation of the film bag by the first plate and the second plate on the base when they are closed, and at the same time, through the cooperation between the movable part, the adjustment device, the first plate and the second plate, the film bag is opened when the first plate and the second plate are separated. The whole process does not need manual opening, thereby realizing mechanization and automation, and improving work efficiency. Secondly, the movable part is pushed by the adjustment device to more accurately adjust the distance between the first plate and the second plate, and then the opening size of the film bag is more accurately adjusted to meet different opening size requirements during subsequent processing of the film bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is an overall schematic diagram of the film bag opening device provided by the utility model;

[0029] Figure 2 A partial schematic diagram of a film bag opening device provided by the utility model;

[0030] Figure 3 The connection diagram of the follower swing rod provided by the utility model Figure 1 ;

[0031] Figure 4 The connection diagram of the follower swing rod provided by the utility model Figure 2 ;

[0032] Figure 5 A schematic diagram of a first plate body and a second plate body provided by the utility model;

[0033] Figure 6 This is a cross-sectional view of the adjusting device provided by the utility model.

[0034] Reference numerals:

[0035] 1-base; 2-first plate; 3-second plate; 4-movable member; 5-adjusting device; 6-elastic member;

[0036] 11- slide rail;

[0037] 201 - a first end of the first plate; 202 - a second end of the first plate;

[0038] 301 - a first end of the second plate body; 302 - a second end of the second plate body;

[0039] 401 - a first end of the movable member; 402 - a second end of the movable member; 403 - a middle portion of the movable member;

[0040] 41 - follower swing rod; 42 - connecting shaft; 43 - first fulcrum; 44 - second fulcrum; 45 - third fulcrum;

[0041] 51-base; 52-adjusting block; 53-driving member; 54-adjusting screw;

[0042] 511-Limiting slot. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] like Figure 1-2 As shown, the utility model provides a film bag opening device, comprising: a base 1, a first plate body 2 and a second plate body 3, the first plate body 2 and the second plate body 3 are arranged side by side on the base 1, and are both slidably connected to the base 1, and are used to slide until the first plate body 2 and the second plate body 3 are closed to cover the film bag; a movable part 4, the middle part 403 of the movable part is rotatably arranged on the base 1, the first end 401 of the movable part is connected to the first plate body 2, and the second end 402 of the movable part extends in a direction close to the second plate body 3; an adjusting device 5, connected to the second end 402 of the movable part, and is used to push the second end 402 of the movable part to drive the first end 401 of the movable part to rotate, so that the first plate body 2 and the second plate body 3 are separated to open the film bag. The utility model realizes the installation of the film bag by the first plate body 2 and the second plate body 3 on the base 1 when they are closed. At the same time, through the cooperation among the movable part 4, the adjusting device 5, the first plate body 2 and the second plate body 3, the film bag is opened when the first plate body 2 and the second plate body 3 are separated. The whole process does not need manual opening, thereby realizing mechanization and automation, and improving work efficiency. Secondly, by pushing the movable part 4 through the adjusting device 5, the separation distance of the first plate body 2 and the second plate body 3 can be more accurately adjusted, and then the opening size of the film bag can be more accurately adjusted to meet different opening size requirements during subsequent processing of the film bag.

[0045] like Figure 1-3As shown, the middle part 403 of the movable part is provided with a connecting shaft 42, and the movable part 4 is rotatably arranged on the base 1 through the connecting shaft 42, and the first end 401 of the movable part and the second end 402 of the movable part are respectively located on both sides of the connecting shaft 42; the first end 401 of the movable part has a first fulcrum part 43, and the first fulcrum part 43 is connected to the first plate body 2; the second end 402 of the movable part has a second fulcrum part 44 and a third fulcrum part 45, the second fulcrum part 44 is located between the first fulcrum part 43 and the third fulcrum part 45, and the second fulcrum part 44 is connected to the second plate body 3; the third fulcrum part 45 is connected to the adjusting device 5, and the adjusting device 5 is used to push the third fulcrum part 45 to drive the first fulcrum part 43 and the second fulcrum part 44 to rotate around the connecting shaft 42, so that the first fulcrum part 43 pushes the first plate body 2 away, and the second fulcrum part 44 pushes the second plate body 3 away. The utility model promotes the movement of the third fulcrum portion 45 through the adjusting device 5, thereby driving the first fulcrum portion 43 and the second fulcrum portion 44 to rotate simultaneously. At this time, the first plate body 2 moves in the direction away from the second plate body 3 under the action of the first fulcrum portion 43, and the second plate body 3 moves in the direction away from the first plate body 2 under the action of the second fulcrum portion 44. The first plate body 2 and the second plate body 3 move simultaneously to more quickly open the film bags sleeved on the first plate body 2 and the second plate body 3.

[0046] like Figure 1-4 As shown, the movable part 4 includes a follower swing rod 41, a first fulcrum part 43, a connecting shaft 42, a second fulcrum part 44 and a third fulcrum part 45 are sequentially arranged along the length direction of the follower swing rod 41; the line between the second fulcrum part 44 and the connecting shaft 42 is a first straight line l1, the line between the second fulcrum part 44 and the third fulcrum part 45 is a second straight line l2, and a preset angle α is formed between the first straight line l1 and the second straight line l2. The utility model makes the layout of the entire follower swing rod 41 more reasonable by forming a preset angle between the first straight line l1 and the second straight line l2, so that the second fulcrum part 44 can be better connected to the second plate body 3, and the second fulcrum part 44 and the third fulcrum part 45 are both located in the power arm of the follower swing rod 41, and the design of the preset angle between the first straight line l1 and the second straight line l2 can increase the length of the power arm, thereby saving more effort.

[0047] The preset angle α is between 120° and 180°.

[0048] like Figure 1-4 As shown, the distance d1 from the first fulcrum portion 43 to the connecting shaft 42 is equal to the distance d2 from the second fulcrum portion 44 to the connecting shaft 42. The utility model specially designs the distances from the first fulcrum portion 43, the second fulcrum portion 44 to the connecting shaft 42 so that when the movable part 4 opens the first plate body 2 and the second plate body 3, the moving distances of the first plate body 2 and the second plate body 3 are equal, so that when the film bag is opened, the force on both sides is more uniform.

[0049] like Figure 1-6 As shown, the film bag opening device provided by the utility model also includes at least one elastic member 6, one end of the elastic member 6 is connected to the first plate body 2, and the other end is connected to the second plate body 3, which is used to drive the first plate body 2 and the second plate body 3 to close when the movable member 4 is reset. The utility model can realize the reset and closure of the first plate body 2 and the second plate body 3 through the elastic member 6, and there is no need to set up a special driving device. Its structure is simpler and the cost of the equipment is reduced.

[0050] Specifically, the at least one elastic member 6 includes an elastic member 6, and the elastic member 6 is connected to the middle part of the first plate body 2 and the middle part of the second plate body 3 respectively;

[0051] Or the at least one elastic member 6 includes two elastic members 6 , the two elastic members 6 are arranged at intervals along the length direction of the first plate body 2 , and extend from the first plate body 2 to be connected to the second plate body 3 respectively.

[0052] When there is one elastic member 6, connecting the elastic member 6 to the middle of the first plate body 2 and the middle of the second plate body 3 respectively can better ensure that the first plate body 2 and the second plate body 3 are subjected to uniform force, which can reduce the number of elastic members 6 and achieve structural stability. When there are two elastic members 6, they are arranged at intervals along the length direction of the first plate body 2, and extend from the first plate body 2 to connect with the second plate body 3 respectively. The two elastic members 6 can further improve the stability of the structure.

[0053] like Figure 1 , 2 As shown in Figures 6 and 7, the adjusting device 5 includes a base 51, an adjusting block 52 and a driving member 53. The adjusting block 52 is slidably disposed on the base 51 and connected to the movable member 4. The driving member 53 is located on a side of the adjusting block 52 away from the movable member 4, and is used to drive the adjusting block 52 to slide so as to drive the movable member 4 to rotate. The utility model drives the movable member 4 to rotate by sliding the adjusting block 52, so that the movable member 4 separates the first plate body 2 and the second plate body 3. In this way, the sliding distance of the adjusting block 52 can be better adjusted, and the distance separating the first plate body 2 and the second plate body 3 can be adjusted more accurately, thereby improving the precision of the opening of the opening device.

[0054] The adjusting block 52 is configured to be driven by the driving member 53 through the adjusting screw 54 to achieve sliding of the adjusting block 52 .

[0055] Specifically, an adjusting screw 54 is provided on the driving member 53 , and the adjusting screw 54 is threadedly connected to the adjusting block 52 , so as to drive the adjusting screw 54 to rotate when the driving member 53 rotates, thereby causing the adjusting block 52 to slide.

[0056] like Figure 1 , 2As shown in Figures 6 and 7, a limiting groove 511 is provided on the base 51, and the limiting groove 511 is matched with the adjusting block 52 to limit the sliding of the adjusting block 52 in the limiting groove 511. The utility model limits the sliding range of the adjusting block 52 through the cooperation between the limiting groove 511 and the adjusting block 52. On the one hand, this design can improve the stability of the adjusting block 52 structure and prevent the adjusting block 52 from sliding out of the limiting groove 511. On the other hand, by limiting the sliding distance of the adjusting block 52, the maximum separation distance of the first plate body 2 and the second plate body 3 can be further limited to meet the expansion requirement.

[0057] In one embodiment, the limiting groove 511 has two elongated grooves, and the adjusting block 52 has a protrusion, which is placed in the elongated grooves and slides on the elongated grooves to realize the sliding of the adjusting block 52. The cooperation between the elongated grooves and the protrusions can improve the stability of the structure of the adjusting block 52 and prevent the adjusting block 52 from sliding out of the limiting groove 511. On the other hand, it can limit the sliding path of the adjusting block 52.

[0058] like Figure 1-6 As shown, a slide rail 11 is provided on the base 1, and a slider (not shown in the figure) is provided on the first end 201 of the first plate body and the first end 301 of the second plate body. The slider is adapted to the slide rail 11 and is used to make the first plate body 2 and the second plate body 3 slide on the base 1 so as to separate or close the first plate body 2 and the second plate body 3; the second end 202 of the first plate body and the second end 302 of the second plate body are matched to be used for covering a film bag when closed.

[0059] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0060] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] Those skilled in the art can understand that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily required for implementing the present utility model.

[0062] Those skilled in the art will appreciate that the modules in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the implementation scenario description, or can be changed accordingly and located in one or more devices different from the implementation scenario. The modules in the above implementation scenario can be combined into one module, or can be further split into multiple sub-modules.

[0063] The above serial numbers of the utility model are for description only and do not represent the advantages or disadvantages of the implementation scenarios.

[0064] 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, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A film bag opening device, characterized in that: include: Base, A first plate body and a second plate body, wherein the first plate body and the second plate body are arranged side by side on the base and are both slidably connected to the base, and are used to slide until the first plate body and the second plate body are closed to cover the film bag; A movable member, wherein the middle portion of the movable member is rotatably disposed on the base, a first end of the movable member is connected to the first plate body, and a second end of the movable member extends toward a direction close to the second plate body; The adjusting device is connected to the second end of the movable member and is used for pushing the second end of the movable member to drive the first end of the movable member to rotate, so as to separate the first plate body from the second plate body to open the film bag.

2. The film bag opening device according to claim 1, characterized in that: A connecting shaft is provided in the middle of the movable member, and the movable member is rotatably arranged on the base through the connecting shaft, and the first end of the movable member and the second end of the movable member are respectively located on both sides of the connecting shaft; The first end of the movable member has a first fulcrum portion, and the first fulcrum portion is connected to the first plate body; The second end of the movable member has a second fulcrum portion and a third fulcrum portion, the second fulcrum portion is located between the first fulcrum portion and the third fulcrum portion, and the second fulcrum portion is connected to the second plate body; The third fulcrum is connected to the adjusting device, and the adjusting device is used to push the third fulcrum to drive the first fulcrum and the second fulcrum to rotate around the connecting axis, so that the first fulcrum pushes the first plate body away, and the second fulcrum pushes the second plate body away.

3. The film bag opening device according to claim 2, characterized in that: The movable member comprises a follower swing rod, and the first fulcrum portion, the connecting shaft, the second fulcrum portion and the third fulcrum portion are sequentially arranged along the length direction of the follower swing rod; A line connecting the second fulcrum portion and the connecting axis is a first straight line, a line connecting the second fulcrum portion and the third fulcrum portion is a second straight line, and a preset angle is formed between the first straight line and the second straight line.

4. The film bag opening device according to claim 3, characterized in that: The preset angle is between 120° and 180°.

5. The film bag opening device according to claim 2 or 3, characterized in that: The distance from the first fulcrum to the connecting axis is equal to the distance from the second fulcrum to the connecting axis.

6. The film bag opening device according to claim 1, characterized in that: It also includes at least one elastic member, one end of which is connected to the first plate body, and the other end of which is connected to the second plate body, and is used to drive the first plate body and the second plate body to close when the movable member is reset.

7. The film bag opening device according to claim 6, characterized in that: At least one of the elastic members includes one elastic member, and the elastic members are respectively connected to the middle part of the first plate body and the middle part of the second plate body; Or at least one of the elastic members includes two elastic members, and the two elastic members are arranged at intervals along the length direction of the first plate body, and extend from the first plate body to be connected to the second plate body respectively.

8. The film bag opening device according to claim 1, characterized in that: The adjusting device comprises a base, an adjusting block and a driving member. The adjusting block is slidably arranged on the base and connected to the movable member. The driving member is located on a side of the adjusting block away from the movable member and is used to drive the adjusting block to slide so as to drive the movable member to rotate.

9. The film bag opening device according to claim 8, characterized in that: The base is provided with a limiting groove, which is matched with the adjusting block and is used to limit the adjusting block from sliding in the limiting groove.

10. The film bag opening device according to claim 1, characterized in that: The base is provided with a slide rail, and the first end of the first plate body and the first end of the second plate body are both provided with a slider, and the slider is adapted to the slide rail and is used to make the first plate body and the second plate body slide on the base so as to separate or close the first plate body and the second plate body; The second end of the first plate body and the second end of the second plate body cooperate with each other to be used for covering the film bag when closed.

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