Puncture testing device for composite film of packaging bag

Abstract

The utility model belongs to the technical field of packaging bag production, and particularly relates to a packaging bag composite film puncture testing device which comprises a testing table, supporting legs are installed at the bottom end of the testing table, two through holes are formed in the upper end of the testing table, a fixing mechanism is arranged on the testing table, a top plate is installed at the upper end of the testing table, and a clamping mechanism is arranged on the top plate. Two rectangular holes are formed in the upper end of the top plate, a protection mechanism is arranged on the top plate, and a shell is installed in the middle of the bottom end of the top plate. According to the utility model, the hydraulic cylinder drives the puncture head to move downwards to carry out a puncture test, the puncture strength of the packaging bag composite film can be known through a pressure value transmitted by the pressure sensor, and the two sides of the packaging bag composite film can be positioned through the arrangement of the fixing mechanism, so that the stability of the test is ensured; and through the arrangement of the protection mechanism, the puncture head can be shielded and protected after the test of the device is completed, so that the sharp end of the puncture head is prevented from damaging foreign objects or personnel and the like, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag production, in particular to a puncture test device for a packaging bag composite film. Background Technique

[0002] The materials of the heat-insulating film of the packaging bag mainly include films made of polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polystyrene (PS) and other resins. These materials are widely used in the packaging industry and as a coating layer. Plastic packaging and its products occupy an increasingly large share in the market. Especially in the aspect of composite plastic flexible packaging, it has been widely used in the fields of food, medicine, chemical industry, etc.;

[0003] According to the patent authorization number CN 220399149 U, a puncture strength detection device for an anti-pollution film is disclosed. In this application, the puncture needle is exposed outside. After the test is completed, there are potential safety hazards in the device. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a puncture test device for a packaging bag composite film, and solves the problems raised in the above background technique.

[0006] (2) Technical Solutions

[0007] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0008] A puncture test device for a packaging bag composite film includes a test bench. Support legs are installed at the bottom end of the test bench. Two through holes are opened at the upper end of the test bench. A fixing mechanism is provided on the test bench. A top plate is installed at the upper end of the test bench. Two rectangular holes are opened at the upper end of the top plate. A protection mechanism is provided on the top plate. A housing is installed in the middle at the bottom end of the top plate. A hydraulic cylinder is installed in the housing. The output end of the hydraulic cylinder is installed with a puncture head through a pressure sensor;

[0009] The protection mechanism includes a fixed block installed at the upper end of the top plate. An electric push rod is installed at one end of the fixed block. The telescopic end of the electric push rod is installed with a main plate. Guide rods are installed in both of the two rectangular holes. Sliders are slidably connected to both of the two guide rods. Extension plates are installed at the bottom ends of both of the two sliders. Protection shells are installed at the opposite ends of both of the two extension plates. Driven plates are installed at the opposite ends of both of the two sliders. Springs are installed at the opposite ends of both of the two sliders. Both of the two springs are connected to the top plate.

[0010] Furthermore, the driven plate is in a right triangle structure.

[0011] Further, the fixing mechanism includes a bearing plate installed at the bottom end of the test bench. A driving motor is installed on the bearing plate. The output end of the driving motor is installed with a driving gear. Two sliding seats are slidably connected in the two through holes. Placing plates are installed at the upper ends of the two sliding seats. Two electric telescopic rods are installed on the top walls of the inner cavities of the two placing plates. The telescopic ends of the two electric telescopic rods on the same side are jointly connected with a pressing plate. One side of the bottom ends of the two sliding seats is installed with a rack.

[0012] Further, the driving gear meshes with the two racks.

[0013] Further, the sliding seat is cross-shaped.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a puncture test device for a packaging bag composite film, which has the following beneficial effects:

[0016] In the utility model, the hydraulic cylinder drives the puncture head to move downward for puncture testing, and the puncture strength of the packaging bag composite film can be known through the pressure value transmitted by the pressure sensor. Through the setting of the fixing mechanism, the two sides of the packaging bag composite film can be positioned, so as to ensure the stability of the test; and through the setting of the protection mechanism, after the device finishes the test, the puncture head can be shielded and protected, so as to avoid the sharp tip of the puncture head from causing damage to foreign objects or personnel, etc., and improve safety. Description of the drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the fixing mechanism of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the protection mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the protective shell of the utility model.

[0021] In the figure: 1, test bench; 2, through hole; 3, fixing mechanism; 31, bearing plate; 32, driving motor; 33, driving gear; 34, sliding seat; 35, placing plate; 36, electric telescopic rod; 37, pressing plate; 38, rack; 4, support leg; 5, top plate; 6, rectangular hole; 7, protection mechanism; 71, guide rod; 72, slider; 73, driven plate; 74, fixed block; 75, electric push rod; 76, active plate; 77, extension plate; 78, protective shell; 79, spring; 8, outer shell; 9, hydraulic cylinder; 10, puncture head. Specific implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment

[0024] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, a puncture test device for a packaging bag composite film proposed in an embodiment of the present utility model includes a test bench 1, support legs 4 are installed at the bottom end of the test bench 1, two through holes 2 are opened at the upper end of the test bench 1, a fixing mechanism 3 is provided on the test bench 1, a top plate 5 is installed at the upper end of the test bench 1, two rectangular holes 6 are opened at the upper end of the top plate 5, a protection mechanism 7 is provided on the top plate 5, a housing 8 is installed in the middle of the bottom end of the top plate 5, a hydraulic cylinder 9 is installed in the housing 8, and a puncture head 10 is installed at the output end of the hydraulic cylinder 9 through a pressure sensor; the hydraulic cylinder 9 drives the puncture head 10 to move downward for puncture testing, and the puncture strength of the packaging bag composite film can be known through the pressure value transmitted by the pressure sensor. Through the setting of the fixing mechanism 3, the two sides of the packaging bag composite film can be positioned, so as to ensure the stability of the test; and through the setting of the protection mechanism 7, after the device test is completed, the puncture head 10 can be shielded and protected, so as to avoid damage to foreign objects or personnel caused by the sharp tip of the puncture head 10, and improve safety.

[0025] The protection mechanism 7 includes a fixed block 74 installed at the upper end of the top plate 5, an electric push rod 75 is installed at one end of the fixed block 74, a driving plate 76 is installed at the telescopic end of the electric push rod 75, two guide rods 71 are installed in the two rectangular holes 6, two sliders 72 are slidably connected to the two guide rods 71, extension plates 77 are installed at the bottom ends of the two sliders 72, protection shells 78 are installed at the opposite ends of the two extension plates 77, driven plates 73 are installed at the opposite ends of the two sliders 72, springs 79 are installed at the opposite ends of the two sliders 72, and the two springs 79 are both connected to the top plate 5; before the device is used, the electric push rod 75 drives the driving plate 76 to move, so that the driving plate 76 contacts the two driven plates 73, the sliders 72 slide on the guide rods 71, squeezing the springs 79, thereby driving the protection shells 78 to move through the extension plates 77, so that the two protection shells 78 move away from each other. At this time, the hydraulic cylinder 9 can drive the puncture head 10 to move downward for puncture testing. When the use is completed, the electric push rod 75 retracts, and with the reset of the springs 79, the two protection shells 78 contact to complete the protection of the puncture head 10.

[0026] As Figure 3 shown, in some embodiments, the driven plate 73 has a right triangle structure; the structure is simple.

[0027] As Figure 2 shown, in some embodiments, the fixing mechanism 3 includes a bearing plate 31 installed at the bottom end of the test bench 1. A driving motor 32 is installed on the bearing plate 31. The output end of the driving motor 32 is installed with a driving gear 33. Two sliding seats 34 are slidably connected in the two through holes 2 respectively. Placing plates 35 are installed at the upper ends of the two sliding seats 34. Two electric telescopic rods 36 are installed on the top walls of the inner cavities of the two placing plates 35. The telescopic ends of the two electric telescopic rods 36 on the same side are jointly connected with a pressing plate 37. Rack bars 38 are installed on one side of the bottom ends of the two sliding seats 34. Place the packaging bag composite film on the placing plate 35. Drive the pressing plate 37 to move downwards through the electric telescopic rod 36 to complete the limiting. Drive the driving gear 33 to rotate through the driving motor 32, drive the rack bars 38 to slide in the through holes 2 along with the sliding seats 34, so as to drive the two placing plates 35 to move away from each other, and the positioning range can be adjusted according to the size of the film.

[0028] As Figure 2 shown, in some embodiments, the driving gear 33 meshes with the two rack bars 38.

[0029] As Figure 2 shown, in some embodiments, the sliding seat 34 is cross-shaped; the limiting effect is good.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A puncture test device for a packaging bag composite film, comprising a test bench (1), characterized in that: The bottom end of the test bench (1) is provided with support legs (4). Two through holes (2) are opened at the upper end of the test bench (1). A fixing mechanism (3) is arranged on the test bench (1). The upper end of the test bench (1) is provided with a top plate (5). Two rectangular holes (6) are opened at the upper end of the top plate (5). A protection mechanism (7) is arranged on the top plate (5). The middle part of the bottom end of the top plate (5) is provided with a housing (8). A hydraulic cylinder (9) is installed in the housing (8). The output end of the hydraulic cylinder (9) is provided with a puncture head (10) through a pressure sensor. The protection mechanism (7) includes a fixing block (74) installed at the upper end of the top plate (5). One end of the fixing block (74) is provided with an electric push rod (75). The telescopic end of the electric push rod (75) is provided with a driving plate (76). Two guide rods (71) are installed in the two rectangular holes (6). Two sliders (72) are slidably connected to the two guide rods (71). The bottom ends of the two sliders (72) are both provided with extension plates (77). Protection shells (78) are installed at the opposite ends of the two extension plates (77). Driven plates (73) are installed at the opposite ends of the two sliders (72). Springs (79) are installed at the opposite ends of the two sliders (72). The two springs (79) are both connected to the top plate (5).

2. The puncture test device for the composite film of a packaging bag according to claim 1, wherein: The driven plate (73) is in a right triangle structure.

3. The puncture test device for the composite film of the packaging bag according to claim 1, characterized in that: The fixing mechanism (3) includes a bearing plate (31) installed at the bottom end of the test bench (1). A driving motor (32) is installed on the bearing plate (31). The output end of the driving motor (32) is provided with a driving gear (33). Two sliding seats (34) are slidably connected in the two through holes (2). Placement plates (35) are installed at the upper ends of the two sliding seats (34). Two electric telescopic rods (36) are installed on the top wall of the inner cavity of each of the two placement plates (35). The telescopic ends of the two electric telescopic rods (36) on the same side are jointly connected to a pressing plate (37). A rack (38) is installed at one side of the bottom end of each of the two sliding seats (34).

4. A puncture test device for a packaging bag composite film according to claim 3, characterized in that: The driving gear (33) meshes with the two racks (38).

5. The puncture test device for a packaging bag composite film according to claim 3, characterized in that: The sliding seat (34) is in a cross shape.

Images