Perforating device for freshness protection bags

Abstract

The utility model discloses a freshness protection package punching device which comprises a bottom plate, a mounting frame, a punching mechanism, a working table and a driving rolling mechanism, and the mounting frame is fixedly connected with the bottom plate; the punching mechanism is mounted on the front surface of the mounting frame and comprises an elliptical plate, a pressing assembly, a punching knife and fixing assemblies, the elliptical plate is rotationally mounted on the front surface of the mounting frame, the pressing assembly is slidably connected to the mounting frame, the punching knife is detachably mounted in the middle of the bottom end of the pressing assembly, and the fixing assemblies are mounted on the two sides of the front surface of the mounting frame; the fixing assemblies are located below the two ends of the pressing assembly. The workbench is fixedly connected to the middle of the top end of the bottom plate, and the workbench is located below the punching knife. The driving winding mechanism is installed at one end of the top of the bottom plate. Therefore, by optimizing the collaboration of the punching process and the winding process, the step of testing the matching degree of the descending speed and the winding speed of the punching device is omitted, and the punching efficiency of the freshness protection package is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of punching devices, in particular to a fresh-keeping bag punching device. Background Art

[0002] Fresh-keeping bags are made of food preservative film and are mainly used to preserve vegetables, fruits, grains, cooked food and other foods. They are widely used in daily life. When food is preserved in fresh-keeping bags, when the humidity of the environment is too high, the humidity in the fresh-keeping bag will also rise accordingly, which will make the food damp and soft, providing favorable conditions for the growth of bacteria, thereby accelerating the decay of food. In order to deal with this problem, it is usually solved by punching holes in the fresh-keeping bag. The perforated fresh-keeping bag can promote ventilation and effectively reduce humidity, thereby helping to extend the shelf life of food.

[0003] At present, although the existing punching device adopts a method combining a transmission mechanism and a punching knife to efficiently punch holes in fresh-keeping bags, the continuous connection characteristics of fresh-keeping bags after production bring some problems to the punching process. First of all, in order to ensure the precise synchronization of the punching and winding and unwinding steps, the operator must finely adjust the rotation speed of the transmission mechanism and the descent speed of the punching knife. A slight deviation may cause damage to the fresh-keeping bag or inaccurate punching position. Therefore, in order to achieve this precise synchronization, the operator often needs to repeatedly test the steps of punching and winding and unwinding, and constantly adjust the parameters to find the best speed match. However, this process is not only time-consuming, but also greatly reduces the efficiency of the punching operation. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, one purpose of the utility model is to propose a fresh-keeping bag punching device, which improves the efficiency of fresh-keeping bag punching by optimizing the synergy between the punching and winding processes and reducing the steps of testing the matching degree between the descent speed of the punching device and the winding speed.

[0006] To achieve the above-mentioned purpose, the utility model proposes a fresh-keeping bag punching device, comprising a base plate, a mounting frame, a punching mechanism, a workbench and a driving and winding mechanism, wherein the mounting frame is fixedly connected to the base plate; the punching mechanism is installed on the front surface of the mounting frame, and the punching mechanism comprises an elliptical plate, a pressing assembly, a punching knife and a fixing assembly, wherein the elliptical plate is rotatably mounted on the front surface of the mounting frame, the pressing assembly is slidably connected to the mounting frame, the punching knife is detachably mounted on the middle part of the bottom end of the pressing assembly, the fixing assembly is mounted on both sides of the front surface of the mounting frame, and the fixing assembly is arranged below the two ends of the pressing assembly; the workbench is fixedly connected to the middle part of the top end of the base plate, and the workbench is arranged below the punching knife; the driving and winding mechanism is installed on one end of the top of the base plate, and the driving and winding mechanism is drivingly connected to the elliptical plate.

[0007] The fresh-keeping bag punching device of the utility model ensures that the reeling and unreeling of the fresh-keeping bag and the descending speed of the punching mechanism when punching holes match each other under the drive of the reeling mechanism, thereby completing the punching work of the fresh-keeping bag. The efficiency of the fresh-keeping bag punching is improved by optimizing the coordination of the punching and reeling processes and reducing the steps of testing the matching degree of the descending speed of the punching device and the reeling speed.

[0008] In addition, the fresh-keeping bag punching device proposed in the application may also have the following additional technical features:

[0009] Specifically, the pressing assembly includes a connecting cylinder, a ball bearing, and a pressure plate, wherein the connecting cylinder is slidably connected to the mounting frame, the ball bearing is rotatably connected to the top of the connecting cylinder, the pressure plate is fixedly connected to the bottom end of the connecting cylinder, the punching knife is detachably mounted on the middle part of the bottom end of the pressure plate, and the pressure plate is arranged above the two groups of the fixed assemblies.

[0010] Specifically, the fixing assembly includes a fixing plate, a spring, a linkage plate, a connecting frame and a pressing wheel, wherein the fixing plate is fixedly connected to the mounting frame, the spring is fixedly connected to the top of the fixing plate, the linkage plate is rotatably connected to the mounting frame, the linkage plate is hinged to the bottom of one end of the linkage plate, the other end of the linkage plate is hinged to the connecting frame, and the pressing wheel is rotatably installed on the inner side of the connecting frame.

[0011] Specifically, the driven winding mechanism includes a winding frame, a winding roller and a driving assembly, wherein the winding frame is fixedly connected to the base plate, the winding roller is rotatably installed on the top of the winding frame, the driving assembly is connected to the base plate, and the driving assembly is transmission-connected to the winding roller.

[0012] Specifically, the driving assembly includes a support frame, a motor, a driving gear, a driven gear, a driving wheel and a driven wheel, wherein the support frame is fixedly connected to the base plate, the motor is detachably mounted on the top of the support frame, the driving gear is fixedly connected to the output end of the motor, the driven gear is arranged at one end of the winding frame, and the driven gear passes through the winding frame and is fixedly connected to the winding roller, and the driven gear is meshed with the driving gear; the driving wheel is fixedly connected to the driven gear, the driven wheel is fixedly connected to the elliptical plate, and the driving wheel is transmission-connected to the driven wheel via a transmission belt.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic diagram of the structure of a fresh-keeping bag punching device according to an embodiment of the utility model;

[0016] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 This is a schematic diagram of the working state structure of the utility model.

[0018] As shown in the figure: 1. Base plate; 2. Mounting frame; 3. Punching mechanism; 31. Elliptical plate; 32. Pressing assembly; 321. Connecting tube; 322. Ball; 323. Pressing plate; 33. Punching knife; 35. Fixing assembly; 351. Fixing plate; 352. Spring; 353. Linkage plate; 354. Connecting frame; 355. Pressing wheel; 4. Workbench; 5. Drive winding mechanism; 51. Winding frame; 52. Winding roller; 53. Driving assembly; 531. Support frame; 532. Motor; 533. Driving gear; 534. Driven gear; 535. Driving wheel; 536. Driven wheel. DETAILED DESCRIPTION

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0020] The fresh-keeping bag punching device according to an embodiment of the utility model will be described below in conjunction with the accompanying drawings.

[0021] The fresh-keeping bag punching device provided in the embodiment of the utility model can be used for punching fresh-keeping bags. The efficiency of fresh-keeping bag punching is improved by optimizing the coordination between the punching and winding processes and reducing the steps of testing the matching degree between the descent speed of the punching device and the winding speed.

[0022] like Figure 1-Figure 3 As shown, the fresh-keeping bag punching device of the embodiment of the utility model may include a bottom plate 1, a mounting frame 2, a punching mechanism 3, a workbench 4 and a driving and winding mechanism 5.

[0023] As a possible situation, in order to increase the stability of the base plate 1 at the installation site, a rubber plate may be connected to the bottom of the base plate 1 to increase the friction between the base plate 1 and the placement site.

[0024] The mounting frame 2 is fixedly connected to the base plate 1 .

[0025] It can be understood that the mounting frame 2 serves to support the installation of the punching mechanism 3 .

[0026] The punching mechanism 3 is installed on the front surface of the mounting frame 2 , and the punching mechanism 3 may include an elliptical plate 31 , a pressing assembly 32 , a punching knife 33 and a fixing assembly 35 .

[0027] It should be noted that the fixing components 35 described in the above embodiment are provided in two groups and are arranged opposite to each other.

[0028] Among them, the elliptical plate 31 is rotatably installed on the front surface of the mounting frame 2, the pressing assembly 32 is slidably connected to the mounting frame 2, the punching knife 33 is detachably installed in the middle of the bottom end of the pressing assembly 32, and the fixing assembly 35 is installed on both sides of the front surface of the mounting frame 2, and the fixing assembly 35 is arranged below the two ends of the pressing assembly 32.

[0029] Specifically, under the rotation of the elliptical plate 31, the pressing assembly 32 descends, thereby driving the punching knife 33 to descend together to complete the step of punching holes in the fresh-keeping bag. At the same time, when the pressing assembly 32 descends, the fixing assembly 35 will be pressed to swing relative to each other and abut against the fresh-keeping bag on the workbench 4, thereby completing the fixation of the fresh-keeping bag on the workbench 4 and preventing the fresh-keeping bag from sliding.

[0030] The workbench 4 is fixedly connected to the middle of the top end of the bottom plate 1 , and the workbench 4 is arranged below the punching knife 33 .

[0031] As a possible situation, in order to better punch holes in the fresh-keeping bag, a through hole is opened in the middle of the workbench 4, and the through hole passes through the bottom plate 1.

[0032] The driving and winding mechanism 5 is installed at one end of the top of the bottom plate 1 , and the driving and winding mechanism 5 is drivingly connected to the elliptical plate 31 .

[0033] It can be understood that the driving and reeling mechanism 5 described in the above embodiment plays the role of reeling in the punched fresh-keeping bag and driving the elliptical plate 31 .

[0034] Specifically, in the actual operation process, when the relevant personnel punch holes in the fresh-keeping bag, the fresh-keeping bag is rolled up under the action of the driving reeling mechanism 5, and the elliptical plate 31 rotates under the drive of the driving reeling mechanism 5. Since the elliptical plate 31 is elliptical, the two ends of the elliptical plate 31 are longer, thereby alternately pressing the pressing component 32 to descend. When the pressing component 32 descends, the fresh-keeping bag is punched by the punching knife 33, and the fixing component 35 is pressed to swing relative to each other while the pressing component 32 descends, thereby achieving the effect of fixing the fresh-keeping bag when punching holes. After punching, the driving reeling mechanism 5 is continuously rotated to complete the rolling of the fresh-keeping bag. By optimizing the synergy of the punching and rolling processes and reducing the steps of testing the matching degree between the descent speed of the punching device and the rolling speed, the efficiency of the fresh-keeping bag punching is improved.

[0035] In one embodiment of the present invention, Figure 1-Figure 2 As shown, the pressing assembly 32 may include a connecting cylinder 321 , a ball 322 , and a pressing plate 323 .

[0036] It should be noted that the pressing plate 323 described in the above embodiment is arranged in a T-shaped structure.

[0037] Among them, the connecting tube 321 is slidably connected to the mounting frame 2, the ball 322 is rotatably connected to the top of the connecting tube 321, the pressure plate 323 is fixedly connected to the bottom end of the connecting tube 321, the punching knife 33 is detachably installed in the middle of the bottom end of the pressure plate 323, and the pressure plate 323 is located above the two groups of fixed components 35.

[0038] Specifically, when the connecting cylinder 321 is pressed by the elliptical plate 31, the friction between the connecting cylinder 321 and the elliptical plate 31 is reduced under the action of the ball 322, and at the same time, the punching knife 33 is installed under the action of the pressing plate 323, and the punching knife 33 is pressed to complete the punching step.

[0039] In one embodiment of the present invention, Figure 1-Figure 2 As shown, the fixing assembly 35 may include a fixing plate 351 , a spring 352 , a linkage plate 353 , a connecting frame 354 and a pressing wheel 355 .

[0040] It should be noted that the fixing components 35 described in the above embodiment are provided in two groups and are arranged opposite to each other.

[0041] Among them, the fixed plate 351 is fixedly connected to the mounting frame 2, the spring 352 is fixedly connected to the top of the fixed plate 351, the linkage plate 353 is rotatably connected to the mounting frame 2, the linkage plate 353 is hinged to the bottom of one end of the linkage plate 353, the other end of the linkage plate 353 is hinged to the connecting frame 354, and the pressing wheel 355 is rotatably installed on the inner side of the connecting frame 354.

[0042] Specifically, when the linkage plate 353 is pressed, the spring 352 rises, and one end of the linkage plate 353 swings on the mounting frame 2 to drive the connecting frame 354 and the pressing wheel 355 to descend, thereby completing the pressing of the fresh-keeping bag on the workbench 4. When the pressing plate 323 rises, the position of the linkage plate 353 is reset under the action of the spring 352.

[0043] In one embodiment of the present invention, Figure 1-Figure 2 As shown, the driven winding mechanism 5 may include a winding frame 51 , a winding roller 52 and a driving assembly 53 .

[0044] It should be noted that the tops of both ends of the winding frame 51 described in the above embodiment are arranged in an open shape, which facilitates the installation and removal of the winding roller 52.

[0045] The winding frame 51 is fixedly connected to the bottom plate 1 , the winding roller 52 is rotatably installed on the top of the winding frame 51 , the driving component 53 is connected to the bottom plate 1 , and the driving component 53 is transmission-connected to the winding roller 52 .

[0046] Specifically, driven by the driving assembly 53 , the winding roller 52 rotates on the winding frame 51 and completes the winding of the fresh-keeping bag.

[0047] In one embodiment of the present invention, Figure 1-Figure 2 As shown, the driving assembly 53 may include a support frame 531 , a motor 532 , a driving gear 533 , a driven gear 534 , a driving wheel 535 and a driven wheel 536 .

[0048] Among them, the support frame 531 is fixedly connected to the base plate 1, the motor 532 is detachably installed on the top of the support frame 531, the driving gear 533 is fixedly connected to the output end of the motor 532, the driven gear 534 is arranged at one end of the winding frame 51, and the driven gear 534 passes through the winding frame 51 and is fixedly connected to the winding roller 52, and the driven gear 534 is meshed with the driving gear 533.

[0049] It can be understood that the installation of the motor 532 is completed under the action of the support frame 531, and under the drive of the motor 532, the driving gear 533 drives the driven gear 534, thereby driving the winding roller 52 to rotate through the driven gear 534 to complete the winding of the perforated fresh-keeping bag.

[0050] The driving wheel 535 is fixedly connected to the driven gear 534 , the driven wheel 536 is fixedly connected to the elliptical plate 31 , and the driving wheel 535 is transmission-connected to the driven wheel 536 via a transmission belt.

[0051] It should be noted that, under the action of the transmission belt, the driving wheel 535 drives the driven wheel 536 , thereby indirectly completing the pressing of the elliptical plate 31 .

[0052] In summary, the fresh-keeping bag punching device of the embodiment of the utility model, under the drive of the driving reeling mechanism, ensures that the reeling and unreeling of the fresh-keeping bag and the descent speed of the punching mechanism when punching holes match, thereby completing the punching of the fresh-keeping bag. By optimizing the synergy of the punching and reeling processes and reducing the steps of testing the matching degree of the descent speed of the punching device and the reeling speed, the efficiency of the fresh-keeping bag punching is improved.

[0053] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot 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 at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

[0055] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A fresh-keeping bag punching device, characterized in that: It includes a base plate, a mounting frame, a punching mechanism, a workbench and a driving and winding mechanism, wherein: The mounting frame is fixedly connected to the base plate; The punching mechanism is installed on the front surface of the mounting frame, and the punching mechanism includes an elliptical plate, a pressing component, a punching knife and a fixing component, wherein: The elliptical plate is rotatably mounted on the front surface of the mounting frame, the pressing assembly is slidably connected to the mounting frame, the punching knife is detachably mounted on the middle of the bottom end of the pressing assembly, the fixing assembly is mounted on both sides of the front surface of the mounting frame, and the fixing assembly is arranged below both ends of the pressing assembly; The workbench is fixedly connected to the middle of the top end of the bottom plate, and the workbench is arranged below the punching knife; The driving and winding mechanism is installed at one end of the top of the bottom plate, and the driving and winding mechanism is drivingly connected with the elliptical plate.

2. The fresh-keeping bag punching device according to claim 1, characterized in that: The pressing assembly includes a connecting cylinder, a ball bearing, and a pressing plate, wherein: The connecting tube is slidably connected to the mounting frame, the ball bearing is rotatably connected to the top of the connecting tube, the pressure plate is fixedly connected to the bottom end of the connecting tube, the punching knife is detachably mounted on the middle of the bottom end of the pressure plate, and the pressure plate is arranged above the two groups of the fixed components.

3. The fresh-keeping bag punching device according to claim 1, characterized in that: The fixing assembly includes a fixing plate, a spring, a linkage plate, a connecting frame and a pressing wheel, wherein: The fixed plate is fixedly connected to the mounting frame, the spring is fixedly connected to the top of the fixed plate, the linkage plate is rotatably connected to the mounting frame, the linkage plate is hinged to the bottom of one end of the linkage plate, the other end of the linkage plate is hinged to the connecting frame, and the pressing wheel is rotatably installed on the inner side of the connecting frame.

4. The fresh-keeping bag punching device according to claim 1, characterized in that: The drive winding mechanism comprises a winding frame, a winding roller and a driving assembly, wherein: The winding frame is fixedly connected to the bottom plate, the winding roller is rotatably installed on the top of the winding frame, the driving component is connected to the bottom plate, and the driving component is transmission-connected to the winding roller.

5. The fresh-keeping bag punching device according to claim 4, characterized in that: The driving assembly includes a support frame, a motor, a driving gear, a driven gear, a driving wheel and a driven wheel, wherein: The support frame is fixedly connected to the bottom plate, the motor is detachably mounted on the top of the support frame, the driving gear is fixedly connected to the output end of the motor, the driven gear is arranged at one end of the winding frame, and the driven gear passes through the winding frame and is fixedly connected to the winding roller, and the driven gear is meshed with the driving gear; The driving wheel is fixedly connected to the driven gear, the driven wheel is fixedly connected to the elliptical plate, and the driving wheel is transmission-connected to the driven wheel via a transmission belt.

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