Punching device for plastic packaging article production

Abstract

The utility model provides a kind of punching device for plastic packaging product production, it includes: base, support rod, fixed block, lifting positioning mechanism and punching mechanism, wherein, base upper middle part is provided with cushion block;Support rod is set in base upper part, fixed block is movably connected with support rod by lifting positioning mechanism, movable slot is set in fixed block front side, lifting positioning mechanism includes lifting part and positioning part, wherein, lifting part is set between support rod and fixed block, positioning part is set in fixed block lower part, punching mechanism includes lower pressing part, quick release part and punch, wherein, lower pressing part is set on fixed block, quick release part is set in lower pressing part lower end, punch is detachably connected with quick release part.The punching device for plastic packaging product production of the utility model embodiment, by quick release part, the punching size on the plastic packaging bag of different specifications can be replaced quickly different diameter punch, to improve work efficiency, save time and effort, simple structure, convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of plastic packaging product manufacturing technology, and in particular to a punching device for manufacturing plastic packaging products. Background Technology

[0002] Plastic packaging products are devices made primarily of plastic used for packaging goods, such as plastic bags or boxes. For some foods that require a certain degree of breathability, such as fresh fruits and vegetables, perforations during the production of packaging bags allow for moderate air circulation inside and outside the bag, expelling gases such as carbon dioxide and ethylene produced by the respiration of fruits and vegetables, while simultaneously supplementing an appropriate amount of oxygen, thus slowing down their spoilage and extending their shelf life.

[0003] Chinese patent CN211306539U discloses a punching device for producing plastic packaging products. It is equipped with a base and a drill bit. The drill bit is relatively long. During operation, a stack of plastic packaging bags can be placed on the base for punching without having to hold the plastic bags by hand, which improves the punching efficiency. The base is equipped with a baffle, and there are material pressers around the drill bit. The baffle can arrange the plastic bags neatly, and the material pressers can fix the plastic bags first and then punch the holes, which can keep the punched plastic bags neat.

[0004] However, in actual production, different sizes of plastic packaging bags require different punching sizes due to their different uses. This necessitates that the punching device be able to quickly adapt to and change drill bits of different specifications. However, the existing device has a key flaw: its drill bit and fixing head are rigidly connected, making replacement and disassembly extremely cumbersome and time-consuming. This design shortcoming directly leads to a significant increase in equipment adjustment time when switching between producing different sizes of plastic bags, ultimately reducing overall production efficiency. Utility Model Content

[0005] The present invention aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0006] Therefore, one objective of this utility model is to provide a punching device for the production of plastic packaging products. Through the quick-release part, punches of different diameters can be quickly changed according to the punching size on plastic packaging bags of different specifications, thereby improving work efficiency, saving time and effort, and having a simple structure and being easy to use.

[0007] To achieve the above objectives, the first aspect of this utility model provides a punching device for producing plastic packaging products, comprising: a base, a support rod, a fixing block, a lifting and positioning mechanism, and a punching mechanism, wherein a pad is provided in the middle of the upper part of the base; the support rod is disposed on the upper part of the base; the fixing block is movably connected to the support rod through the lifting and positioning mechanism, and a movable groove is provided on the front side of the fixing block; the lifting and positioning mechanism includes a lifting part and a positioning part, wherein the lifting part is disposed between the support rod and the fixing block; the positioning part is disposed at the lower part of the fixing block; the punching mechanism includes a pressing part, a quick-release part, and a punch, wherein the pressing part is disposed on the fixing block; the quick-release part is disposed at the lower end of the pressing part; and the punch is detachably connected to the quick-release part.

[0008] In addition, the punching device for producing plastic packaging products according to the present invention may also have the following additional technical features: Specifically, a sliding groove is provided on the rear side of the fixing block.

[0009] Specifically, the lifting unit includes a slider, a lead screw, and a knob. The slider is disposed at one end of the support rod and is adapted to the slide groove. The lead screw is rotatably connected inside the slide groove and is threadedly connected to the slider. The knob is connected to one end of the lead screw.

[0010] Specifically, the positioning part includes two positioning rods and two pressing blocks, wherein the two positioning rods are respectively disposed at the lower part of the fixing block; and the two pressing blocks are respectively connected to the lower end of the corresponding positioning rod.

[0011] Specifically, the pressing part includes a guide post, a limiting block, a spring, a pressure rod, and a handle. The guide post passes through the fixed block and has a rounded upper end. The limiting block is disposed on the guide post and located inside the movable groove. One end of the spring is connected to the limiting block, and the other end of the spring is connected to the fixed block. The spring is sleeved on the outside of the guide post. The pressure rod is pivotally connected to the upper end of the fixed block. The handle is connected to the pressure rod.

[0012] Specifically, the quick-release part includes a sleeve, a bolt, and an elastic clamping member. The sleeve is connected to the lower end of the guide post, and the inner side of the sleeve is provided with an internal thread. The bolt is threaded to the sleeve, and the bolt has a through hole in the middle. The upper end of the bolt is arranged with an inwardly recessed slope. The elastic clamping member is connected to the inside of the sleeve, and the lower end of the elastic clamping member is connected to the slope of the bolt. The elastic clamping member is used to clamp and fix the punch.

[0013] Specifically, a baffle is installed on one side of the upper part of the base.

[0014] Compared with the prior art, the present invention has the following advantages: The punching device for producing plastic packaging products of the present invention can quickly position a stack of plastic packaging bags through the positioning part, punch the plastic packaging bags with effortless punching through the pressing part and the quick-release part can quickly change the punch of different diameter according to the punching size on the plastic packaging bags of different specifications, thereby improving work efficiency, saving time and effort, and having a simple structure and being easy to use.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a three-dimensional structural diagram of a punching device for producing plastic packaging products according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a three-dimensional structural diagram of a punching device for producing plastic packaging products according to an embodiment of the present invention. Figure 2 ; Figure 3 This is a side cross-sectional view of a punching device for producing plastic packaging products according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the punching mechanism of a punching device for producing plastic packaging products according to an embodiment of the present invention.

[0017] Figure 5 This is a schematic diagram of the quick-release part of a punching device for manufacturing plastic packaging products according to an embodiment of the present invention. Figure 1 .

[0018] Figure 6 This is a schematic diagram of the quick-release part of a punching device for manufacturing plastic packaging products according to an embodiment of the present invention. Figure 2 .

[0019] Reference numerals: 1. Base; 101. Pad; 2. Support rod; 3. Fixing block; 301. Slide groove; 4. Lifting and positioning mechanism; 401. Lifting part; 4011. Slider; 4012. Lead screw; 4013. Knob; 402. Positioning part; 4021. Positioning rod; 4022. Pressing block; 5. Punching mechanism; 501. Pressing part; 5011. Guide post; 5012. Limiting block; 5013. Spring; 5014. Pressure rod; 5015. Handle; 502. Quick release part; 5021. Sleeve; 5022. Bolt; 5023. Elastic clamping part; 503. Punch; 6. Baffle. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] The following describes a punching device for producing plastic packaging products according to an embodiment of the present invention with reference to the accompanying drawings.

[0022] like Figures 1-6 As shown, the punching device for producing plastic packaging products according to this utility model embodiment may include: a base 1, a support rod 2, a fixing block 3, a lifting and positioning mechanism 4, and a punching mechanism 5.

[0023] Among them, a pad 101 is provided in the middle of the upper part of the base 1.

[0024] Understandably, the pad 101 is made of rubber and is used to cushion and protect the punch 503 during the drilling process.

[0025] Support rod 2 is set on the upper part of base 1.

[0026] It should be noted that the support rod 2 described in this embodiment is welded and fixed to the base 1.

[0027] The fixed block 3 is movably connected to the support rod 2 through the lifting and positioning mechanism 4, and the fixed block 3 has a movable groove on the front side.

[0028] The lifting and positioning mechanism 4 includes a lifting part 401 and a positioning part 402.

[0029] The lifting part 401 is located between the support rod 2 and the fixed block 3, and the positioning part 402 is located at the lower part of the fixed block 3.

[0030] It is understandable that by adjusting the lifting part 401, the fixing block 3 can be moved up and down. The positioning part 402 is used to cooperate with the lifting part 401 to fix a stack of plastic packaging bags placed on the base 1, so as to prevent the plastic packaging bags from moving during the punching process.

[0031] The punching mechanism 5 includes a pressing part 501, a quick-release part 502, and a punch 503.

[0032] The pressing part 501 is mounted on the fixed block 3, the quick-release part 502 is mounted at the lower end of the pressing part 501, and the punch 503 is detachably connected to the quick-release part 502.

[0033] It should be noted that the punch 503 described in this embodiment is made of hollow steel pipe, which can quickly punch holes in plastic packaging bags. Multiple punches 503 of different diameters can be equipped according to the punching requirements of plastic packaging bags of different sizes.

[0034] Specifically, after plastic packaging bags (such as fresh fruit and vegetable packaging bags) are produced, this equipment is used to punch holes in the surface to allow air to circulate appropriately inside and outside the bag, expelling gases such as carbon dioxide and ethylene produced by the respiration of fruits and vegetables, while replenishing an appropriate amount of oxygen, thus slowing down the rate of spoilage and extending the shelf life.

[0035] The staff places a stack of plastic bags on the upper part of the base 1, so that the punching point is above the pad 101. Then, the lifting part 401 is adjusted to control the fixing block 3 to descend, so that the positioning part 402 clamps and fixes the stack of plastic bags to prevent the plastic bags from moving during the punching process.

[0036] Next, the staff controls the punch 503 to descend through the pressing part 501, and punches a stack of plastic packaging bags in one go. Then, the staff controls the fixing block 3 to rise through the lifting part 401 to remove the plastic packaging bags.

[0037] When changing to different sizes of plastic packaging bags and needing to adjust the size of the holes, the worker can manually remove the punch 503 through the quick-release part 502, and then insert the punch 503 of the appropriate diameter back into the quick-release part 502 and lock it again, so that the punching operation on the plastic packaging bag can continue.

[0038] In one embodiment of this utility model, such as Figure 2 and Figure 3 As shown, a sliding groove 301 is provided on the rear side of the fixing block 3.

[0039] In one embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the lifting unit 401 includes a slider 4011, a lead screw 4012, and a knob 4013.

[0040] The slider 4011 is located at one end of the support rod 2 and is adapted to the slide groove 301. The lead screw 4012 is rotatably connected inside the slide groove 301. The lead screw 4012 is threadedly connected to the slider 4011. The knob 4013 is connected to one end of the lead screw 4012.

[0041] It should be noted that the lead screw 4012 described in this embodiment is a trapezoidal lead screw, which has a good self-locking function.

[0042] Specifically, when positioning the plastic packaging bag, the screw 4012 is rotated by turning the knob 4013. The screw 4012, together with the slider 4011 and the groove 301, can drive the fixing block 3 to move up and down, thereby fixing the plastic packaging bag with the positioning part 402.

[0043] In one embodiment of this utility model, such as Figure 1 As shown, the positioning part 402 includes two positioning rods 4021 and two pressing blocks 4022.

[0044] Two positioning rods 4021 are respectively set at the lower part of the fixed block 3, and two pressing blocks 4022 are respectively connected to the lower end of the corresponding positioning rods 4021.

[0045] It should be noted that, in this embodiment, the pressing block 4022 is welded and fixed to the positioning rod 4021, the positioning rod 4021 is welded and fixed to the fixing block 3, and the lower end of the pressing block 4022 is flush with the lower end of the punch 503.

[0046] Understandably, while the pressing block 4022 presses down on the plastic packaging bag to fix it in place, the punch 503 has a large frictional force with the hole wall after punching due to the thickness of a stack of plastic packaging bags. If there is no limit device, the punch 503 may easily lift the plastic packaging bag during the upward process, requiring the operator to manually remove the plastic packaging bag. However, the pressing block 4022 described in this embodiment can block the plastic packaging bag, allowing the punch 503 to be directly removed from the hole, facilitating rapid material discharge.

[0047] In one embodiment of this utility model, such as Figure 3 and Figure 4 As shown, the pressing part 501 includes a guide post 5011, a limiting block 5012, a spring 5013, a pressure rod 5014, and a handle 5015.

[0048] The guide post 5011 passes through the fixed block 3. The upper end of the guide post 5011 is round. The limiting block 5012 is set on the guide post 5011 and located inside the movable groove. One end of the spring 5013 is connected to the limiting block 5012, and the other end of the spring 5013 is connected to the fixed block 3. The spring 5013 is sleeved on the outside of the guide post 5011. The pressure rod 5014 is pivotally connected to the upper end of the fixed block 3. The handle 5015 is connected to the pressure rod 5014.

[0049] It should be noted that the spring 5013 described in this embodiment is fixed to the limiting block 5012 and the fixing block 3 by welding. The limiting block 5012 is fixed to the guide post 5011 by welding. The handle 5015 and the pressure rod 5014 are integrally formed.

[0050] Specifically, when punching holes in plastic packaging bags, the worker can grasp the handle 5015 and press it down. The pressure rod 5014 rotates around the hinge end, while the pressure rod 5014 presses down on the guide post 5011. The round head of the guide post 5011 can reduce friction. The guide post 5011 moves downward to control the punch 503 to punch holes in the plastic packaging bag. The length of the power arm formed by the handle 5015 and the pressure rod 5014 is greater than the length of the guide post 5011 as the resistance arm. Therefore, it is easier for the worker to press the handle 5015.

[0051] When you feel the punch 503 contact the pad 101, it means that all the holes in a stack of plastic bags have been punched. At this time, you can release the handle 5015. The spring 5013, under compression, pushes the limit block 5012 upward. The limit block 5012 drives the guide post 5011 to automatically reset, so that the punch 503 is pulled out of the plastic bag.

[0052] In one embodiment of this utility model, such as Figure 5 and Figure 6 As shown, the quick-release part 502 includes a sleeve 5021, a bolt 5022, and an elastic clamping member 5023.

[0053] Sleeve 5021 is connected to the lower end of guide post 5011. Sleeve 5021 has an internal thread. Bolt 5022 is threaded to sleeve 5021. Bolt 5022 has a through hole in the middle. The upper end of bolt 5022 is arranged with an inwardly recessed slope. Elastic clamping member 5023 is connected to the inside of sleeve 5021. The lower end of elastic clamping member 5023 is connected to the slope of bolt 5022. Elastic clamping member 5023 is used to clamp and fix punch 503.

[0054] It should be noted that the sleeve 5021 described in this embodiment is welded and fixed to the guide post 5011. The elastic clamping member 5023 is made of spring steel, which has a high elastic limit, fatigue limit and sufficient toughness. The elastic clamping member 5023 is composed of four independently movable components evenly arranged in a ring. The ends of the components are generally truncated cone-shaped. Under normal conditions, the four components are slightly opened outward.

[0055] Specifically, when it is necessary to replace the punch 503 with a different diameter, the operator can manually rotate the bolt 5022 to unscrew the bolt 5022 outward. The inclined surface of the bolt 5022 gradually relaxes the pressure on the elastic clamping member 5023, and the elastic clamping member 5023 opens outward to release the clamping and fixing of the punch 503. At this time, the operator can easily remove the punch 503.

[0056] Then, another punch 503 of suitable diameter is reinserted into the elastic clamping member 5023 through the through hole of bolt 5022. Then, bolt 5022 is rotated in the opposite direction so that bolt 5022 is screwed into sleeve 5021. The inclined surface of bolt 5022 will gradually squeeze the elastic clamping member 5023. The elastic clamping member 5023 retracts to clamp and fix the punch 503, thus completing the replacement and installation of punch 503.

[0057] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, a baffle 6 is installed on one side of the upper part of the base 1.

[0058] It should be noted that the baffle 6 described in this embodiment is fixed to the base 1 by bolts. Before drilling, the staff can use the baffle 6 to tidy up the plastic packaging bag, so that the plastic packaging bag is aligned and misalignment is avoided when drilling.

[0059] In summary, the punching device for producing plastic packaging products of this utility model can quickly change punches of different diameters according to the punching size on plastic packaging bags of different specifications through the quick-release part, thereby improving work efficiency, saving time and labor, and having a simple structure and being easy to use.

[0060] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A punching device for plastic packaging article production, characterized by, include: The components include a base, support rod, fixing block, lifting and positioning mechanism, and punching mechanism. A pad is provided in the middle of the upper part of the base; The support rod is disposed on the upper part of the base; The fixed block is movably connected to the support rod through the lifting and positioning mechanism, and the fixed block has a movable groove on its front side; The lifting and positioning mechanism includes a lifting part and a positioning part, wherein... The lifting unit is disposed between the support rod and the fixing block; The positioning part is disposed at the lower part of the fixing block; The punching mechanism includes a pressing part, a quick-release part, and a punch, wherein... The pressing part is disposed on the fixing block; The quick-release part is located at the lower end of the pressing part; The punch is detachably connected to the quick-release part.

2. The perforating device for plastic packaging article production according to claim 1, characterized by A sliding groove is provided on the rear side of the fixing block.

3. The perforating device for the production of plastic packaging articles according to claim 2, characterized in that, The lifting unit includes a slider, a lead screw, and a knob, wherein... The slider is disposed at one end of the support rod and is adapted to the groove; The lead screw is rotatably connected inside the slide groove, and the lead screw is threadedly connected to the slider; The knob is connected to one end of the lead screw.

4. The perforating device for producing plastic packaging articles according to claim 3, characterized in that, The positioning part includes two positioning rods and two pressing blocks, wherein... The two positioning rods are respectively disposed at the lower part of the fixing block; The two pressing blocks are respectively connected to the lower end of the corresponding positioning rod.

5. The perforating device for plastic packaging article production according to claim 1, characterized by The pressing part includes a guide post, a limiting block, a spring, a pressure rod, and a handle, wherein, The guide post penetrates the fixing block, and the upper end of the guide post is rounded. The limiting block is disposed on the guide post and located inside the movable groove; One end of the spring is connected to the limiting block, the other end of the spring is connected to the fixing block, and the spring is sleeved on the outside of the guide post; The pressure rod is pivotally connected to the upper end of the fixed block; The handle is connected to the pressure rod.

6. The perforating device for producing plastic packaging articles according to claim 5, characterized in that, The quick-release part includes a sleeve, a bolt, and a resilient clamping element, wherein, The sleeve is connected to the lower end of the guide post, and the inner side of the sleeve is provided with an internal thread; The bolt is threaded to the sleeve, the bolt has a through hole in the middle, and the upper end of the bolt is arranged in an inwardly concave slope. The elastic clamping member is connected to the inside of the sleeve, and the lower end of the elastic clamping member is connected to the inclined surface of the bolt. The elastic clamping member is used to clamp and fix the punch.

7. The perforating apparatus for producing plastic packaging articles according to claim 1, characterized in that, A baffle is installed on one side of the upper part of the base.

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