Standard sampling equipment for plastic milk powder caps

Abstract

The present invention discloses a standard sampling device for plastic milk powder caps, comprising a base and a main shaft fixed to the base, wherein a safety loading platform, a sampling mechanism, and a transmission mechanism are fixed to the main shaft in order from bottom to top; the safety loading platform and the sampling mechanism are located on the same side of the main shaft; the transmission mechanism is fixedly connected to the sampling mechanism and can drive the sampling mechanism to move up and down. The present invention has a simple structure, a reasonable design, a compact size, and is safe and reliable to use. It can cut hard plastic milk powder caps with very little force, and the obtained sample end face is vertical and smooth, which can ensure the accuracy of subsequent test data. The present invention is used when performing standardized measurements on plastic milk powder caps and is used to cut and sample plastic milk powder caps.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging utensil detection, and in particular relates to a standard sampling device for plastic milk powder caps. Background Art

[0002] Currently, there are numerous types of infant formula packaging on the market, a major category of which uses tinplate (tin-plated iron) for sealing and aluminum foil. To effectively protect the formula from opening to end of use, tin can packaging often incorporates a plastic lid made of PP or PE to seal the can while it's in use. However, the structure of the plastic lid, which fits the can's curled edge, is complex, often with curved surfaces. Furthermore, the lid's internal cavity is narrow and the material is rigid, making standardized measurement difficult.

[0003] Therefore, when performing standardized measurements on plastic milk powder caps, the following situations generally occur:

[0004] 1. Some inspectors use utility knives to cut open the plastic milk powder caps, but because the material is hard, it is time-consuming and laborious, and there is also the risk of scratches. In addition, the cuts are often irregular, and conventional calipers and snap gauges can only measure regular end faces. The measurement of the non-vertical internal structure of the plastic milk powder caps is often inaccurate, so the test results will be affected to some extent.

[0005] Second, the plastic milk powder cap is not subjected to cross-section inspection, only application inspection is performed. Under the premise that the plastic milk powder cap and the milk powder can are well matched, the application inspection can be used as the basis for factory acceptance. However, if the match is poor, this measurement method cannot detect the problem in the first time.

[0006] 3. Using large cutting tools to cut the plastic milk powder caps is inconvenient, and the sampling is inaccurate, so that the plastic milk powder caps may have some defects that are difficult to be found, thereby adversely affecting the quality of the product. Summary of the Invention

[0007] In order to solve the above deficiencies in the prior art, the present invention aims to provide a standard sampling device for plastic milk powder caps, which can easily cut hard plastic milk powder caps while ensuring the smoothness and verticality of the end surface, thereby ensuring the accuracy of subsequent detection data.

[0008] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a standard sampling device for plastic milk powder caps, comprising a base and a main shaft fixed on the base, on which a safety loading platform, a sampling mechanism and a transmission mechanism are fixed in sequence from bottom to top; the safety loading platform and the sampling mechanism are located on the same side of the main shaft; the transmission mechanism is fixedly connected to the sampling mechanism and can drive the sampling mechanism to move up and down.

[0009] As a limitation of the present invention, it further includes a reset mechanism for realizing automatic reset of the sampling mechanism; the reset mechanism is located above the transmission mechanism, and the bottom end is fixed to the transmission mechanism.

[0010] As a further limitation of the present invention, the reset mechanism is a reset spring arranged directly above the transmission mechanism.

[0011] As another limitation of the present invention, the sampling mechanism includes a standard sampling cutter fixedly arranged below the transmission mechanism; a cutter protection plate is provided on the outer edge of the standard sampling cutter.

[0012] As a further limitation of the present invention, the front end of the safety loading platform away from the main shaft is provided with a U-shaped opening whose size is compatible with the standard sampling cutter; the rear end of the safety loading platform close to the main shaft is fixed with at least one horizontal pressing piece for fixing the milk powder cover.

[0013] As a further limitation of the present invention, a milk powder cover limiting frame is detachably provided on the safety loading platform; the shape of the milk powder cover limiting frame is adapted to the shape of the inner cavity groove of the milk powder cover.

[0014] As a third limitation of the present invention, the transmission mechanism includes a transmission gear and a transmission rack that cooperate with each other; the transmission gear is fixed on one side of the main shaft, the transmission rack is parallel to the main shaft, and the bottom end of the transmission rack is fixed to the sampling mechanism.

[0015] As a further limitation of the present invention, a power-assisting pressure rod is further provided on one side of the transmission mechanism, and the power-assisting pressure rod is drivingly connected to the transmission gear in a gear meshing manner.

[0016] As a further limitation of the present invention, it also includes a limiting bolt arranged above the transmission mechanism for controlling the maximum downward distance of the sampling mechanism; the limiting bolt is fixed on both sides of the top of the transmission rack and extends downward to a certain length.

[0017] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0018] (1) The present invention uses a transmission mechanism to drive the sampling mechanism up and down. That is, the gear transmission in the transmission mechanism can convert the force applied by the power lever into a downward cutting force of the sampling mechanism. Only a small amount of force is required to cut through the hard plastic milk powder cap, and the resulting sample section is smooth and vertical. This device can effectively replace utility knives and other cutting equipment to accurately sample plastic milk powder caps.

[0019] (2) The reset mechanism provided in the present invention can cooperate with the transmission rack in the transmission mechanism. When the auxiliary pressure rod drives the sampling mechanism to move downward through the transmission mechanism, the reset mechanism can ensure that the sampling mechanism is reset in time so as to carry out the next cutting operation.

[0020] (3) The front end of the safety loading platform of the present invention is provided with a U-shaped opening, which can ensure that the standard sampling cutter can completely cut the sample to be tested during cutting and sampling, and can prevent the standard sampling cutter from being damaged due to contact between the standard sampling cutter and the safety loading platform; the rear end of the safety loading platform is fixed with a horizontal pressing piece, which can fix the rear end of the plastic milk powder cover during the downward movement of the standard sampling cutter, so that the plastic milk powder cover can maintain the best flat state during the cutting process of the sample to be tested.

[0021] (4) The outer edge of the standard sampling cutter in the present invention is fixed with a cutter protection plate, which can not only prevent foreign objects from bumping against the standard sampling cutter, but also prevent the operator from being scratched by the standard sampling cutter when using the device.

[0022] (5) In the present invention, a limit bolt is provided above the transmission mechanism, and the limit height of the limit bolt can be adjusted according to the height of the plastic milk powder cover, thereby flexibly limiting the downward distance of the standard sampling cutter, making the stroke of the standard sampling cutter more reasonable.

[0023] In summary, the present invention has a simple structure, reasonable design, compact size, and safe and reliable use. It can cut a hard plastic milk powder cover with very little force, and the end surface of the obtained sample is vertical and smooth.

[0024] The invention is used when performing standardized measurement on a plastic milk powder cover and is used for cutting and sampling the plastic milk powder cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention;

[0027] Figure 2 A top view of the structural relationship of an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the structure of a safety loading platform according to an embodiment of the present invention;

[0029] In the figure: 1. Spindle; 2. Base; 3. Safety loading platform; 4. Horizontal tablet press; 5. Milk powder cover limit frame; 6. Standard sampling cutter; 7. Cutter protection plate; 8. Drive rack; 9. Power-assisted pressure rod; 10. Limit bolt; 11. Return spring. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention and are not intended to limit the present invention.

[0031] Example 1 Standard sampling device for plastic milk powder caps

[0032] like Figures 1 to 3 As shown, this embodiment includes a base 2 and a spindle 1 fixed to the base 2. A safety loading platform 3, a sampling mechanism, a transmission mechanism, and a reset mechanism are fixed to the same side of the spindle 1, from bottom to top. The transmission mechanism is fixed to the sampling mechanism and can drive the sampling mechanism up and down; the reset mechanism is fixed above the transmission mechanism and can automatically reset the sampling mechanism by driving the transmission mechanism. This device can easily cut open plastic milk powder caps, and the obtained sample end surface is vertical and smooth, ensuring the accuracy of subsequent plastic milk powder cap inspection data.

[0033] 1. Safety loading platform

[0034] When cutting the plastic milk powder cover, the safety loading platform 3 is used to place the plastic milk powder cover to be cut. Figure 1 As shown, the safety loading platform 3 is set horizontally as a whole, and one end is fixed to the main shaft 1 by a bolt. Among them, a U-shaped opening is opened at the end of the safety loading platform 3 away from the main shaft 1. The width of the U-shaped opening is generally compatible with the width of the standard sampling cutter 6 in the sampling mechanism, so that the standard sampling cutter 6 can descend to the bottom of the safety loading platform 3, thereby ensuring that the standard sampling cutter 6 can completely cut the plastic milk powder cover. At the end of the safety loading platform 3 close to the main shaft 1, at least one horizontal pressing piece 4 for fixing the plastic milk powder cover is also provided, so that the plastic milk powder cover can always maintain a flat state, and prevent the plastic milk powder cover from tilting at the rear end due to excessive force on the front end during cutting. In this embodiment, two horizontal pressing pieces 4 are provided, and they are symmetrical about the central axis of the safety loading platform 3.

[0035] like Figure 3 As shown, the safety loading platform 3 is also detachably provided with a milk powder cap limiting frame 5. The shape of the milk powder cap limiting frame 5 is adapted to the shape of the inner groove of the plastic milk powder cap. The milk powder cap limiting frame 5 can further secure the plastic milk powder cap to prevent it from falling or moving during the cutting process, thereby ensuring the uniformity of the cutting and sampling. Because the milk powder cap limiting frame 5 is detachably provided on the safety loading platform 3, the milk powder cap limiting frame 5 in use can be easily replaced to accommodate different types of plastic milk powder caps.

[0036] 2. Sampling Agency

[0037] The sampling mechanism is used to cut and sample the plastic milk powder cap. It includes a standard sampling cutter 6 fixed directly below the transmission mechanism. This cutter 6 is located directly above the safety loading platform 3 and can move up and down driven by the transmission mechanism. A cutter protection plate 7 is also provided on the outer edge of the standard sampling cutter 6 to protect it from foreign objects and avoid scratches to the operator during use. To ensure a vertical sample cut and reduce detection errors, the standard sampling cutter 6 in this embodiment uses a standard 45° angle.

[0038] 3. Transmission mechanism

[0039] The transmission mechanism controls the vertical movement of the standard sampling cutter 6 to sample the plastic milk powder cap on the safety loading platform 3. The transmission mechanism comprises a cooperating transmission gear and a transmission rack 8. The transmission gear is fixed to one side of the main shaft 1 and can rotate relative to it. The transmission rack 8 is vertically arranged parallel to the main shaft 1. A booster lever 9 is also provided on one side of the transmission mechanism. This lever is connected to the transmission gear through a meshing mechanism. Applying pressure to the booster lever 9 rotates the transmission gear, thereby achieving the vertical movement of the transmission rack 8.

[0040] Specific structure such as Figure 1 As shown, a closed housing is fixed to one side of the main shaft 1, within which a transmission gear is located. A transmission rack 8 extends vertically through the housing, and a booster pressure rod 9 is provided on one side of the housing, thereby securing the entire transmission mechanism to the main shaft 1. A stop bolt 10 is provided on either side of the top of the transmission rack 8. The stop bolts 10 extend downward for a certain length so that after the transmission rack 8 moves downward a certain distance, the stop bolts 10 can be fixed on the upper surface of the closed housing, thereby controlling the maximum downward distance of the transmission rack 8. Because the bottom end of the transmission rack 8 is fixed to the standard sampling cutter 6 in the sampling mechanism, the stop bolts 10 can indirectly control the maximum downward distance of the standard sampling cutter 6, thereby ensuring a reasonable travel of the standard sampling cutter 6.

[0041] 4. Reset mechanism

[0042] The reset mechanism is used to realize the automatic reset of the standard sampling cutter 6. Figure 1 As shown, the reset mechanism is a reset spring 11 provided just above the transmission rack 8. The bottom end of the reset spring 11 is fixed to the top end of the transmission rack 8. When the transmission rack 8 drives the standard sampling cutter 6 to move downward, the reset spring 11 can drive the standard sampling cutter 6 to automatically rise upward in the vertical direction, thereby realizing the automatic reset of the standard sampling cutter 6.

[0043] The working process of this embodiment is as follows:

[0044] To use this embodiment, an appropriate milk powder cap retaining frame 5 is selected based on the type of plastic milk powder cap to be cut. The retaining frame 5 is bolted to the safety loading platform 3. The plastic milk powder cap to be cut is then placed on the safety loading platform 3. A portion of the retaining frame 5 is positioned within the groove within the plastic milk powder cap, temporarily securing the plastic milk powder cap to the safety loading platform 3. Finally, the rear end of the plastic milk powder cap is secured with the horizontal pressing piece 4. The height of the retaining bolt 10 is adjusted based on the height of the plastic milk powder cap. Pressure is then applied to the booster lever 9. The transmission gear and rack 8 work together to convert this pressure into a downward cutting force for the standard sampling cutter 6, which then cuts the plastic milk powder cap. After cutting is complete, the device automatically resets due to the pull of the reset spring 11. To continue cutting the same type of plastic milk powder cap, the above cutting process is repeated. To cut a different type of plastic milk powder cap, the retaining frame 5 is replaced with the appropriate one, then the sample is fixed and the cutting process is repeated. After sampling is completed, clean and reset the equipment.

[0045] It should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still modify the technical solutions described in the above embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A standard sampling device for plastic milk powder caps, characterized by: The machine comprises a base and a main shaft fixed on the base, wherein a safety loading platform, a sampling mechanism and a transmission mechanism are fixed on the main shaft in order from bottom to top; the safety loading platform and the sampling mechanism are located on the same side of the main shaft; the transmission mechanism is fixedly connected to the sampling mechanism and can drive the sampling mechanism to move up and down; The sampling mechanism includes a standard sampling cutter fixedly arranged below the transmission mechanism; a cutter protection plate is provided on the outer edge of the standard sampling cutter; A U-shaped opening is provided at the front end of the safety loading platform away from the main shaft, and the size of the opening is adapted to the standard sampling cutter. At least one horizontal pressing piece for fixing the milk powder cover is fixed at the rear end of the safety loading platform close to the main shaft. A milk powder cover limiter is detachably provided on the safety loading platform; the shape of the milk powder cover limiter matches the shape of the inner cavity groove of the milk powder cover; It also includes a limiting bolt arranged above the transmission mechanism for controlling the maximum downward distance of the sampling mechanism.

2. The standard sampling device for plastic milk powder caps according to claim 1, characterized in that: It also includes a reset mechanism for realizing automatic reset of the sampling mechanism; the reset mechanism is located above the transmission mechanism, and the bottom end is fixed to the transmission mechanism.

3. The standard sampling device for plastic milk powder caps according to claim 2, characterized in that: The reset mechanism is a reset spring arranged just above the transmission mechanism.

4. The standard sampling device for plastic milk powder caps according to any one of claims 1 to 3, characterized in that: The transmission mechanism includes a transmission gear and a transmission rack that cooperate with each other; the transmission gear is fixed on one side of the main shaft, the transmission rack is parallel to the main shaft, and the bottom end of the transmission rack is fixed to the sampling mechanism.

5. The standard sampling device for plastic milk powder caps according to claim 4, characterized in that: A power-assisting pressure rod is further provided on one side of the transmission mechanism, and the power-assisting pressure rod is drivingly connected to the transmission gear in a gear meshing manner.

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