A multi-fold card divider

By using molds to process multi-fold partition plates and utilizing the connection structure of locking and folding partition plates, the problems of inconvenient processing and low pass rate of partition plates are solved, achieving convenient processing and efficient production.

CN224491843UActive Publication Date: 2026-07-14SHIYAN SHUNLIXIN IND & TRADE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHIYAN SHUNLIXIN IND & TRADE CO LTD
Filing Date
2025-09-15
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing technologies, multi-piece partitions are inconvenient to handle during processing, waste labor, and have a low product qualification rate. Especially when the load-bearing requirements are high, manual application of glue increases costs and affects the production schedule.

Method used

A multi-folding partition is designed, which is processed into a complete corrugated board by a mold. The folding and locking are achieved by using the connection structure between the locking partition and the folding partition, forming a W-shaped wave. The cooperation of the locking strip and the locking groove ensures the stable connection of the partition.

Benefits of technology

It enables convenient processing and high-yield production of multi-fold partitions, saves labor costs, and improves product stability and production efficiency.

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Abstract

This utility model relates to the field of packaging carton manufacturing technology, specifically a multi-fold cardboard divider, including a locking divider (1) and folding dividers. The multi-fold cardboard divider consists of a locking divider (1) and multiple folding dividers. The locking divider (1) is connected to the adjacent folding dividers by multiple evenly distributed folding locking strips (9). The folding dividers are connected to each other by multiple evenly distributed folding pressure lines (8). This utility model provides a method to unfold and arrange multiple folding dividers in sequence, process them into a complete corrugated board through a mold, and form a complete multi-fold cardboard divider after folding and locking. This makes it convenient to handle during the processing of multi-fold cardboard dividers, saves labor, and improves the product qualification rate.
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Description

Technical Field

[0001] This utility model relates to the field of packaging carton manufacturing technology, specifically a multi-fold cardboard divider. Background Technology

[0002] In the cardboard box lining industry, inserts serve as both external load-bearing components and internal protective parts. They are semi-finished products manufactured using mold stamping, then manually or mechanically assembled to form a three-dimensional structure that protects the product, widely used in the industry. For packaging heavier products, where a single carton can weigh over 50kg, the stacking strength of the bottom carton increases exponentially due to weather, humidity, and harsh transportation conditions. While cardboard itself is not particularly rigid, it must withstand stacking forces exceeding one ton. In such cases, internal inserts are needed for support. However, a single insert has limited load-bearing capacity; two inserts combined... After the mold stamping, the corrugated parts are crushed and their load-bearing capacity is not ideal. At this point, it is considered to stack three or more cardboard pieces together for load-bearing support. When multiple cardboard pieces are inserted into cardboard pieces in another direction, due to the limitation of the slot width and process requirements, the corrugated parts must be joined together. This requires manual alignment of several cardboard pieces, and sometimes even gluing them together. This increases labor costs. During the gluing process, the semi-finished product is still movable before the glue dries completely. If you are not careful, you will produce uneven semi-finished products that will be scrapped. Therefore, this traditional method of making multiple cardboard pieces is not only wasteful of labor, but also has a low product qualification rate, which seriously affects the production progress. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a method that sequentially unfolds and arranges multiple folding card dividers, processes them into a complete corrugated board using a mold, and then folds and locks them to form a complete multi-folding card divider. This solves the problems of inconvenience in handling, wasted labor, and low product qualification rate during the processing of multi-folding card dividers.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a multi-folding partition, including a locking partition and folding partitions, characterized in that: the multi-folding partition is composed of a locking partition and multiple folding partitions, wherein the locking partition is connected to the adjacent folding partitions as a whole by multiple evenly distributed folding locking strips, and the folding partitions are connected to each other as a whole by multiple evenly distributed folding pressure lines;

[0005] The locking latch is provided with a folding locking strip and a side locking strip at the corresponding position, and the folding latch is provided with a latch slot, a folding locking groove, a folding locking groove, and a side locking groove at the corresponding position.

[0006] When the multi-folding partition is folded, the multiple folding partitions shrink and fold in a W-shaped wave. The locking partition is folded by flipping and together with the adjacent folding partitions, it wraps the remaining folding partitions in the middle.

[0007] After the multi-fold partition is folded into shape, the side locking strips and folding locking strips on the locking partition are locked in the side locking grooves and folding locking grooves of the corresponding multiple folding partitions by folding; the folding locking strips are locked in the folding locking grooves of the corresponding multiple folding partitions by flipping.

[0008] A further improvement is that the relationship between the width K1 of the folding pressure line (the connection distance between the folding pressure line and the folding card compartment) and the thickness K of a single folding card compartment is 0≤2K-K1≤2.

[0009] A further improvement is that the width K2 of the folding locking strip (the connection distance between the folding locking strip and the locking strip) and the thickness K of a single folding strip are related as follows: 0 ≤ nK - K2 ≤ 2, where n represents the total number of strips in the multi-folding strip plate.

[0010] A further improvement is that the relationship between the depth K3 of the folding locking groove corresponding to the folding locking strip and the thickness K of a single folding partition is K3=nK / 2+4, where n represents the total number of partitions in the multi-folding partition plate.

[0011] A further improvement is that the multi-fold partition is a three-fold partition, which consists of a locking partition, a single-fold partition, and a double-fold partition in sequence.

[0012] A further improvement is that the multi-fold partition is a four-fold partition, which consists of a locking partition, a one-fold partition, a two-fold partition, and a three-fold partition in sequence.

[0013] A further improvement is that the multi-fold partition is a five-fold partition, which consists of a locking partition, a one-fold partition, a two-fold partition, a three-fold partition, and a four-fold partition in sequence.

[0014] A further improvement is that the multi-fold partition is made of BC corrugated cardboard.

[0015] The beneficial effects of this utility model are as follows:

[0016] A method is provided that multiple folding card dividers are unfolded and arranged in sequence, and processed into a complete corrugated board through a mold. After folding and locking, a complete multi-folding card divider is formed, which makes it convenient to handle during the processing of multi-folding card dividers, saves labor, and improves the product qualification rate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the three-fold card divider in an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the unfolded structure of the five-fold card divider in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the unfolded structure of the four-fold card divider in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the unfolded structure of the three-fold card divider in an embodiment of this utility model.

[0021] Figure label:

[0022] 1-Locking latch, 2-One-fold latch, 3-Two-fold latch, 4-Three-fold latch, 5-Four-fold latch.

[0023] 6-Card slot, 7-Folding locking groove, 8-Folding pressure line, 9-Folding locking strip.

[0024] 10-Folding locking groove, 11-Side locking groove, 12-Side locking strip, 13-Folding locking strip. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0026] See Figures 1 to 4 As shown, this utility model embodiment provides a multi-folding partition, including a locking partition 1 and folding partitions. The multi-folding partition consists of a locking partition 1 and multiple folding partitions. The locking partition 1 is connected to adjacent folding partitions by multiple evenly distributed folding locking strips 9. The folding partitions are connected to each other by multiple evenly distributed folding pressure lines 8. In this embodiment, the folding locking strips 9 and folding pressure lines 8 are processed on the corrugated board by pressure lines. Their function is to ensure that multiple folding partitions are connected together to form a complete corrugated board, which is convenient for handling and folding, while saving labor and improving the product qualification rate.

[0027] The locking spacer 1 is provided with a side locking strip 12 and a folding locking strip 13 at the corresponding position. The folding spacer is provided with a spacer slot 6, a folding locking groove 7, a folding locking groove 10, and a side locking groove 11 at the corresponding position.

[0028] When the multi-folding partition is folded, the multiple folding partitions shrink and fold in a W-shaped wave. The locking partition 1 is folded by flipping, and together with the adjacent folding partitions, it wraps the remaining folding partitions in the middle. This embodiment illustrates the folding method of the folding partitions and the locking partition 1 in the multi-folding partition.

[0029] After the multi-fold partition is folded and formed, the side locking strip 12 and the folding locking strip 13 on the locking partition 1 are locked in the side locking groove 11 and the folding locking groove 10 of the corresponding multiple folding partitions by folding; the folding locking strip 9 is locked in the folding locking groove 7 of the corresponding multiple folding partitions by flipping; this embodiment illustrates the locking method between the different locking strips on the locking partition 1 and the corresponding locking grooves on the multiple folding partitions.

[0030] See Figures 2 to 4 As shown, the relationship between the width K1 of the folding pressure line 8 (the connection distance between the folding pressure line 8 and the folding card compartment) and the thickness K of a single folding card compartment is 0≤2K-K1≤2;

[0031] See Figures 2 to 4 As shown, the relationship between the width K2 of the folding locking strip 9 (the connection distance between the folding locking strip 9 and the locking strip 1) and the thickness K of a single folding strip is 0≤nK-K2≤2, where n represents the total number of strips in the multi-folding strip plate.

[0032] See Figures 2 to 4 As shown, in the folding locking groove 7 corresponding to the folding locking strip 9, the relationship between the depth K3 of the folding locking groove 7 and the thickness K of a single folding partition is K3=nK / 2+4, where n represents the total number of partitions in the multi-folding partition plate;

[0033] The above embodiments illustrate the relationship between different locking strip widths and locking groove depths and the thickness of the card divider. Their function is to ensure that multiple card dividers do not interfere with or misalign when folded, while ensuring that the locking strip is reliably locked in the locking groove.

[0034] See Figure 4 As shown, the multi-fold partition is a three-fold partition, which consists of a locking partition 1, a single-fold partition 2, and a double-fold partition 3 in sequence.

[0035] See Figure 3 As shown, the multi-fold partition is a four-fold partition, which consists of a locking partition 1, a one-fold partition 2, a two-fold partition 3, and a three-fold partition 4 in sequence.

[0036] See Figure 2 As shown, the multi-fold card partition is a five-fold card partition, which consists of locking card partition 1, one-fold card partition 2, two-fold card partition 3, three-fold card partition 4, and four-fold card partition 5 in sequence.

[0037] See Figure 1 As shown, the multi-fold cardboard divider is made of BC corrugated cardboard.

[0038] The working principle of this utility model is as follows:

[0039] This utility model discloses a multi-fold card divider, which unfolds and arranges multiple fold card dividers in sequence, and processes them into a complete corrugated board through a mold. After folding and locking, a complete multi-fold card divider is formed, which makes it convenient to handle during the processing of multi-fold card dividers, saves labor, and improves the product qualification rate.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any simple modifications, equivalent substitutions, improvements, etc., made within the technical concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-folding partition, comprising a locking partition (1) and a folding partition, characterized in that: The multi-folding partition consists of a locking partition (1) and multiple folding partitions. The locking partition (1) is connected to the adjacent folding partitions by multiple evenly distributed folding locking strips (9). The folding partitions are connected to each other by multiple evenly distributed folding pressure lines (8). The locking clip (1) is provided with a side locking strip (12) and a folding locking strip (13) at the corresponding position. The folding clip is provided with a clip slot (6), a folding locking groove (7), a folding locking groove (10), and a side locking groove (11) at the corresponding position. When the multi-fold partition is folded, the multiple fold partitions shrink and fold in a W-shaped wave, and the locking partition (1) wraps the remaining fold partitions together with the adjacent fold partitions by flipping and folding. After the multi-fold partition is folded and formed, the side locking strip (12) and the folding locking strip (13) on the locking partition (1) are locked in the side locking groove (11) and the folding locking groove (10) of the corresponding multiple folding partitions by folding; the folding locking strip (9) is locked in the folding locking groove (7) of the corresponding multiple folding partitions by flipping.

2. The multi-fold card divider according to claim 1, characterized in that: The relationship between the width K1 of the folding pressure line (8) and the thickness K of a single folding card is 0≤2K-K1≤2.

3. A multi-folding partition according to claim 1, characterized in that: The relationship between the width K2 of the folding locking strip (9) and the thickness K of a single folding partition is 0≤nK-K2≤2, where n represents the total number of partitions in the multi-folding partition plate.

4. A multi-folding partition according to claim 3, characterized in that: In the folding locking groove (7) corresponding to the folding locking strip (9), the relationship between the depth K3 of the folding locking groove (7) and the thickness K of a single folding partition is K3=nK / 2+4, where n represents the total number of partitions in the multi-folding partition plate.

5. A multi-folding partition according to claim 1, characterized in that: The multi-fold partition is a three-fold partition, which consists of a locking partition (1), a single-fold partition (2), and a double-fold partition (3) in sequence.

6. A multi-folding partition according to claim 1, characterized in that: The multi-fold partition is a four-fold partition, which consists of a locking partition (1), a one-fold partition (2), a two-fold partition (3), and a three-fold partition (4) in sequence.

7. A multi-folding partition according to claim 1, characterized in that: The multi-fold partition is a five-fold partition, which consists of a locking partition (1), a one-fold partition (2), a two-fold partition (3), a three-fold partition (4), and a four-fold partition (5) in sequence.

8. A multi-fold card divider according to any one of claims 1 to 7, characterized in that: The multi-fold partition is made of BC corrugated cardboard.