Compaction mechanism of plastic box cover
By designing an automated cylinder-driven compaction mechanism, the safety hazards and uneven compaction problems during the compaction process of plastic box lids and sleeves were solved, achieving a safe and uniform compaction effect between the sleeves and the lids.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO JINGJIN HOUSEHOLD PROD CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-15
AI Technical Summary
During the current process of compacting plastic box lid sleeves, workers need to frequently operate the pneumatic press manually, which poses a safety hazard and results in uneven compaction.
Design a compaction mechanism that includes a cylinder, a guide column, a positioning block, and a rubber pressure column. The cylinder drives the pressure column to rise and fall by controlling the movement of the cylinder through a foot switch. Combined with the movement of the guide column and the positioning block, the compaction process is automated, ensuring that the rubber sleeve fits tightly with the box cover.
It achieves a safe compaction process that requires no manual operation, ensuring personal safety, and provides uniform compaction, improving sealing performance and product quality.
Smart Images
Figure CN224241340U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of plastic box lids, and in particular to a compaction mechanism for plastic box lids. Background Technology
[0002] Plastic boxes are a common household product. Some plastic box lids have a rubber sleeve pressed into the outer edge. The sleeve acts as a cushion, reducing the impact of external forces on the connection between the lid and the box body, and lowering the risk of the lid breaking or being damaged. Moreover, the sleeve can come in various colors, shapes, and materials, and can also serve a decorative purpose, making the plastic box look more beautiful and refined. Currently, the pressing of plastic box lids and sleeves is mainly done using pneumatic presses. However, the placement and removal of the sleeves and plastic box lids require workers to put their hands under the pressure column of the pneumatic press. The hands need to be frequently operated under the pressure column, and if there is any mistake, it is very easy for workers' hands to be crushed and injured, seriously threatening personal safety. Summary of the Invention
[0003] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a compaction mechanism for a plastic box lid.
[0004] This utility model provides a compaction mechanism for a plastic box lid, including a base 1. A cylinder 4 is arranged on the upper part of the base 1 facing downward. A plate 5 is connected to the piston rod end of the cylinder 4. A plurality of pressing columns 6 for compacting the plastic sleeve and the box lid are arranged at the bottom of the plate 5. A positioning block 7 is slidably mounted on the base 1. Guide members 8 are symmetrically installed on the left and right sides of the positioning block 7. Guide columns 9 that are slidably mounted on the guide members 8 are symmetrically arranged on the left and right sides of the plate 5.
[0005] Furthermore, the guide member 8 is provided with a guide groove for sliding the guide post 9. The guide groove is composed of an inclined section in the middle connected to the upper rear vertical section and the lower front vertical section.
[0006] Furthermore, a support column 2 is vertically arranged on the base 1, a stabilizing block 3 is horizontally arranged on the support column 2, and the stabilizing block 3 is arranged downwards on the cylinder 4.
[0007] Furthermore, the top of the positioning block 7 is provided with a racetrack-shaped positioning groove 7.1, and the bottom of the positioning groove 7.1 is provided with a countersunk hole 7.2.
[0008] Furthermore, the pressure post 6 is made of rubber, and the pressure post 6 is distributed along the edge of the positioning groove 7.1.
[0009] Furthermore, a sliding groove is longitudinally provided on the base 1, a slider that slides into the sliding groove is installed at the bottom of the positioning block 7, and a baffle 10 that blocks the sliding groove is installed at the front end of the base 1.
[0010] Furthermore, the cylinder 4 is controlled to open and close by a foot switch 11.
[0011] The advantages of this utility model are as follows: The cylinder drives the lifting and lowering of the pressure column and the forward and backward movement of the positioning block, eliminating the need for operation under the pressure column during loading and unloading, thus ensuring personal safety; the foot switch controls the opening and closing of the cylinder, making it convenient and reliable; the pressure column can apply uniform pressure to the plastic lid, ensuring a tight fit between the rubber sleeve and the lid, achieving a good compaction effect; the cylinder drives the pressure column and guide column to descend, the guide column moves the guide and positioning block to the bottom without moving, allowing the pressure column to accurately align with the upper edge of the plastic lid on the positioning block; the pressure column continues to descend to compact the lid, then the cylinder drives the pressure column and guide column to rise and reset, the guide column moves the guide and positioning block forward and reset; the inclined section moves the guide and positioning block to the bottom, the pressure column aligns with the upper edge of the plastic lid on the positioning block; the front vertical section keeps the guide and positioning block stationary, and the rear vertical section keeps the guide and positioning block stationary after moving to the bottom; the pressure column can evenly press on the upper edge of the plastic lid; the slider is installed on the positioning block through a countersunk hole, and the baffle prevents the positioning block and slider from disengaging from the groove. Attached Figure Description
[0012] Figure 1 This is a perspective view of the present utility model;
[0013] Figure 2 This is the front view of the present invention;
[0014] Figure 3 This is the left view of the present invention;
[0015] Figure 4 for Figure 2 AA section view;
[0016] Figure 5 This is a left view of the plastic box lid being pressed down by the pressure column according to this utility model;
[0017] Figure 6 for Figure 1 Enlarged view of part B. Detailed Implementation
[0018] The present invention will now be described in detail with reference to the accompanying drawings.
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0020] See Figures 1 to 6 This utility model provides a compaction mechanism for a plastic box lid, comprising a base 1, with a cylinder 4 mounted downwards on the top of the base 1. The cylinder 4 is controlled to open and close by a foot switch 11, which is convenient and reliable. A support column 2 is vertically mounted on the base 1, and a stabilizing block 3 is horizontally mounted on the support column 2. The stabilizing block 3 is mounted downwards on the cylinder 4. A plate 5 is connected to the piston rod end of the cylinder 4. Several pressure columns 6 are provided at the bottom of the plate 5 for compacting the plastic sleeve and the box lid. The pressure columns can apply uniform pressure to the plastic box lid, ensuring a tight fit between the plastic sleeve and the box lid, achieving a good compaction effect, and improving the sealing performance and overall quality of the product. The base 1 is equipped with a positioning block 7 that moves back and forth. Guides 8 are symmetrically installed on the left and right sides of the positioning block 7. Guide posts 9 that slide on the guides 8 are symmetrically arranged on the left and right sides of the plate 5. The rubber sleeve is placed on the positioning block and the plastic box cover is placed on the rubber sleeve. The cylinder drives the pressure post and guide post to descend. The guide post moves the guide and positioning block backward to the bottom and does not move, so that the pressure post is accurately aligned with the upper edge of the plastic box cover on the positioning block. The pressure post continues to descend to compact the box cover. Then the cylinder drives the pressure post and guide post to rise and reset. The guide post moves the guide and positioning block forward and reset, so that the staff can remove the compacted plastic box cover from the positioning block. The positioning block is in front of the pressure post, so there is no need to worry about injury.
[0021] See Figure 1 , Figure 3 The guide member 8 has a guide groove for sliding the guide post 9. The guide groove consists of a middle inclined section connected to the upper rear vertical section and the lower front vertical section. When the guide post descends, it passes through the rear vertical section, the inclined section, and the front vertical section of the guide groove in sequence. The inclined section moves the guide member and the positioning block to the bottom, and the pressure post corresponds to the upper edge of the plastic box cover on the positioning block. The front vertical section keeps the guide member and the positioning block stationary. The pressure post continues to descend to compact the rubber sleeve and the plastic box cover. Then, the cylinder drives the pressure post and the guide post to rise and reset. The guide post passes through the guide groove to move the guide member and the positioning block forward and reset. The rear vertical section keeps the guide member and the positioning block stationary after moving forward to the bottom to remove the compacted plastic box cover.
[0022] The top of the positioning block 7 has a racetrack-shaped positioning groove 7.1, and the bottom of the positioning groove 7.1 has a countersunk hole 7.2. The rubber sleeve is placed into the positioning groove and positioned, and then the plastic box cover is placed on the rubber sleeve. The cylinder drives the pressure column to press the rubber sleeve and the plastic box cover firmly, and then the staff removes the pressed plastic box cover from the positioning groove.
[0023] The pressure posts 6 are made of rubber and are distributed along the edge of the positioning grooves 7.1. There are 8 pressure posts in total, 3 symmetrically placed on the left and right, and 1 symmetrically placed at the front and back in the middle. The pressure posts can press evenly onto the plastic box lid.
[0024] A longitudinal groove is formed on the base 1, and a slider that slides into the groove is installed on the bottom of the positioning block 7. A baffle 10 is installed at the front end of the base 1 to block the groove. The slider is installed on the positioning block through a countersunk hole, and the baffle is designed to prevent the positioning block and slider from disengaging from the groove.
[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A compaction mechanism for a plastic box lid, characterized in that: The device includes a base, on which a cylinder is mounted facing downwards. A flat plate is connected to the piston rod end of the cylinder. Several pressure posts are provided at the bottom of the flat plate for pressing the rubber sleeve and the lid firmly. A positioning block is slidably mounted on the base, and guide members are symmetrically mounted on the left and right sides of the positioning block. Guide posts that are slidably mounted on the guide members are symmetrically arranged on the left and right sides of the flat plate.
2. The compaction mechanism for a plastic box lid as described in claim 1, characterized in that: The guide member has a guide groove for sliding the guide post. The guide groove is composed of a middle inclined section connected to the upper rear vertical section and the lower front vertical section.
3. The compaction mechanism for a plastic box lid as described in claim 1, characterized in that: A support column is vertically mounted on the base, a stabilizing block is horizontally mounted on the support column, and a stabilizing block is mounted downwards on the cylinder.
4. The compaction mechanism for a plastic box lid as described in claim 1, characterized in that: The top of the positioning block has a racetrack-shaped positioning groove, and the bottom of the positioning groove has a countersunk hole.
5. The compaction mechanism for a plastic box lid as described in claim 4, characterized in that: The pressure column is made of rubber and is distributed along the edge of the positioning groove.
6. The compaction mechanism for a plastic box lid as described in claim 1, characterized in that: The base has a longitudinally formed groove, the bottom of the positioning block is fitted with a slider that slides into the groove, and the front end of the base is fitted with a baffle that blocks the groove.
7. The compaction mechanism for a plastic box lid as described in claim 1, characterized in that: The cylinder is controlled to open and close by a foot switch.