Blow-molded bottle for placing sauce and manufacturing method of blow-molded bottle

Abstract

The invention discloses a blow-molded bottle for placing sauce and a manufacturing method of the blow-molded bottle, and relates to the technical field of blow-molded bottles. The blow molding bottle for placing the sauce comprises a split type bottle body, the split type bottle body comprises an upper half bottle body with a bottle opening and a lower half bottle body, the upper half bottle body is in threaded connection with the lower half bottle body, an operation ring is arranged on the upper half bottle body in a sleeving mode, a locking block is arranged on the outer wall of the upper half bottle body, and the upper half bottle body and the lower half bottle body are in threaded connection. A locking groove matched with the locking block is formed in the inner wall of the operation ring, and when the operation ring is moved till the locking block enters the locking groove, the relative position of the upper half bottle body and the lower half bottle body can be driven through the operation ring. According to the blow molding bottle for placing the sauce, the operation ring is arranged outside the split type bottle body which is in threaded connection, the locking groove is formed in the inner side of the operation ring, and the corresponding locking block is arranged outside the split type bottle body, so that a user can move the operation ring until the locking block is matched with the locking groove; the split type bottle body is opened by rotating the operation ring.

Description

Technical Field

[0001] The present invention relates to the technical field of blow - molded bottles and processing, and specifically relates to a blow - molded bottle for placing sauces and a manufacturing method thereof. Background Art

[0002] A blow - molded bottle is a common container often used in production and daily life. It is named blow - molded bottle because of its blow - molding production process. Blow - molded bottles made of acid - resistant materials that can meet the storage conditions of sauces are also often used for storing sauces. However, due to the high viscosity of sauces, they often adhere to the inner wall of the blow - molded bottle, and the bottle mouth has a small diameter, making it difficult to take out the sauce.

[0003] In the prior art, a utility model patent with the publication number CN205819802U discloses a double - lid container. By using the method of segmenting the bottle body and connecting the segments with threads, the sauce can be taken out after the bottle body is separated. Although this invention solves the problem of difficult sauce extraction in the bottle, the threaded connection between the split - type bottle bodies is prone to looseness during long - term use. Especially when the connection of the split - type bottle bodies is set near the bottom of the bottle body, the sauce needs to be consumed for a certain period of time before it can be taken out by opening the bottle body, which may lead to an unstable bottle body structure. At this time, the threaded pre - tightening force between the split - type bottle bodies is often increased to solve this problem. However, an excessive pre - tightening force will make it difficult to open the split - type bottle body, especially when there is oil stain on the split - type bottle body, which will further increase the difficulty of opening the split - type bottle body. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides a blow - molded bottle for placing sauces, which solves the technical problems that it is difficult to open when a large threaded pre - tightening force is used between split - type bottle bodies and the lack of processing technology for split - type blow - molded bottles in the prior art.

[0006] (2) Technical Solutions

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: A blow - molded bottle includes a split - type bottle body and a bottle cap. The split - type bottle body includes an upper half - bottle body with a bottle mouth and a lower half - bottle body. The bottle cap is threadedly connected to the bottle mouth. An operation ring is sleeved on the upper half - bottle body. The operation ring can move up and down relative to the upper half - bottle body. A locking block is arranged on the outer wall of the upper half - bottle body. A locking groove matching with the locking block is formed on the inner wall of the operation ring. When the operation ring is moved so that the locking block enters the locking groove, the relative position of the upper half - bottle body and the lower half - bottle body can be driven by the operation ring. Limiting rings are arranged at the upper end of the upper half - bottle body and the upper end of the lower half - bottle body respectively. The limiting rings are used for the movement of the operation ring.

[0008] The manufacturing method includes the following steps:

[0009] S1: Blow-mold the split bottle body integrally. Grooves matching the locking blocks and the limiting rings are respectively formed in the mold used for blow molding. The length of the integrally blow-molded split bottle body is greater than the length of the split bottle body product;

[0010] S2: Cut the blow-molded split bottle body into an upper half bottle body and a lower half bottle body;

[0011] S3: Process external threads and internal threads at the upper ends of the lower half bottle body and the upper half bottle body respectively;

[0012] S4: After sleeving the operating ring on the upper half bottle body, thread-connect the lower half bottle body with the upper half bottle body;

[0013] S5: Install the bottle cap on the bottle mouth of the upper half bottle body.

[0014] Preferably, the thread direction of the bottle cap and the bottle mouth is opposite to the thread direction of the upper half bottle body and the lower half bottle body.

[0015] Preferably, the thread direction of the bottle cap and the bottle mouth is the same as the thread direction of the upper half bottle body and the lower half bottle body, and the thread pre-tightening force between the bottle cap and the bottle mouth is less than the thread pre-tightening force between the upper half bottle body and the lower half bottle body.

[0016] Preferably, in S2, the cutting position can be determined according to the limiting ring on the integrally blow-molded split bottle body, and the cutting position should be the limiting ring provided at the upper end of the lower half bottle body.

[0017] Preferably, in S4, before thread-connecting the lower half bottle body with the upper half bottle body, a sealing ring is arranged inside the internal thread section of the upper half bottle body, and then the lower half bottle body is thread-connected with the upper half bottle body.

[0018] Preferably, in S5, before installing the bottle cap on the bottle mouth of the upper half bottle body, a sealing ring is arranged inside the bottle cap, and then the bottle cap is thread-connected with the upper half bottle body.

[0019] Preferably, in S1, the length of the integrally blow-molded split bottle body is equal to the length of the split bottle body product plus the length of the external thread section of the lower half bottle body and the allowance left for cutting.

[0020] (III) Beneficial effects

[0021] The present invention provides a blow-molded bottle for placing sauce and its manufacturing method. It has the following beneficial effects:

[0022] (1). The blow - molded bottle for placing sauce and its manufacturing method are configured such that an operation ring is provided outside the split - type bottle body connected by threads, a locking groove is opened inside the operation ring, and a corresponding locking block is provided outside the split - type bottle body. After the user moves the operation ring until the locking block engages with the locking groove, the split - type bottle body can be opened by rotating the operation ring.

[0023] (2). The blow - molded bottle for placing sauce and its manufacturing method can facilitate the operator to open the split - type bottle body and appropriately increase the thread pre - tightening force between the split - type bottle bodies because the operation ring can increase the operating torque and keep away from oil stains, thus avoiding situations such as thread loosening after long - term use of the split - type bottle body, and further facilitating the removal of the sauce in the bottle body.

[0024] (3). The blow - molded bottle for placing sauce and its manufacturing method can still be processed by the blow - molding integral - forming method. Only by opening the required grooves for the positioning block and the limiting ring on the traditional blow - molded bottle mold can the integral blow - molding of the bottle body be completed. Then, the bottle body is cut and the internal and external threads are processed separately to achieve the function of threaded connection of the split - type bottle body. Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the present invention;

[0026] Figure 2 It is a cross - sectional structural view of the present invention;

[0027] Figure 3 It is a top - view structural diagram of the present invention;

[0028] Figure 4 It is a schematic diagram of the state where the operation ring of the present invention moves downward;

[0029] Figure 5 It is a comparison diagram (without the cap) of the blow - molded bottle body of the present invention and the product;

[0030] Figure 6 It is a schematic diagram of the state of the blow - molded bottle body of the present invention after being cut.

[0031] In the figure: 1. Split - type bottle body; 11. Lower half of the bottle body; 12. Upper half of the bottle body; 2. Bottle cap; 3. Operation ring; 31. Locking groove; 32. Locking block; 4. Limiting ring; 5. Handle. Detailed Embodiment

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1: A specific implementation manner for solving the technical problem that it is not easy to open when a relatively large screw pre-tightening force is adopted between the split bottle bodies of the present invention

[0034] A blow-molded bottle for placing sauces includes a split bottle body 1. The split bottle body 1 includes an upper half bottle body 12 with a bottle mouth and a lower half bottle body 11. The upper half bottle body 12 is threadedly connected to the lower half bottle body 11. An operation ring 3 is sleeved on the upper half bottle body 12. The operation ring 3 can move up and down relative to the upper half bottle body 12. A locking block 32 is arranged on the outer wall of the upper half bottle body 12, and a locking groove 31 matching with the locking block 32 is formed on the inner wall of the operation ring 3. When the operation ring 3 is moved to make the locking block 32 enter the locking groove 31, the relative positions of the upper half bottle body 12 and the lower half bottle body 11 can be driven by the operation ring 3.

[0035] Among them:

[0036] In order to ensure the torque transmission between the operation ring 3 and the upper half bottle body 12, both the locking groove 31 and the locking block 32 are arranged in a circular arrangement in this embodiment.

[0037] In this embodiment, for the convenience of operation, the locking block 32 is arranged at the bottom of the upper half bottle body 12. The operation ring 3 needs to be rotated to a suitable angle to move the operation ring 3 downward and make the locking block 32 snap into the locking groove 31 of the operation ring 3. When it is not necessary to rotate the upper half bottle body 12 and the lower half bottle body 11 usually, the operation ring 3 can be moved upward and offset by a certain angle to make the locking block 32 support the operation ring 3, preventing the positions of the locking groove 31 and the locking block 32 from corresponding, and resulting in the operation ring 3 moving downward under the action of gravity.

[0038] In order to prevent the operation ring 3 from detaching from the split bottle body 1, limit rings 4 are arranged at the upper ends of both the upper half bottle body 12 and the lower half bottle body 11. The limit rings 4 are used for the movement of the operation ring 3. The operation ring 3 can be sleeved on the upper half bottle body 12 from the bottom of the upper half bottle body 12 before the upper half bottle body 12 and the lower half bottle body 11 are connected.

[0039] The split bottle body 1 of this embodiment can be processed and formed by blow molding, and the necessary structure for forming the locking block 32 can be left on the blow molding die. Those skilled in the art can determine the specific structure of the blow molding die according to the structure of the locking block 3. After the split bottle body 1 is processed, the split bottle body can be cut at a preset position, and corresponding external threads and internal threads can be opened. It should be noted that this embodiment adopts a blow molding bottle with the structure of the present invention manufactured by blow molding, and other bottle body structures adopting the structure of the present invention should also be within the protection scope of the present invention.

[0040] To improve the sealing performance, sealing rings can be provided between the bottle cap 2 and the upper half bottle body 12, and between the upper half bottle body 12 and the lower half bottle body 11.

[0041] The thread connection method in this embodiment can be referred to as follows:

[0042] Method 1: The thread directions of the bottle cap 2 and the bottle mouth are opposite to the thread directions of the upper half bottle body 12 and the lower half bottle body 11. This method can prevent the upper half bottle body 12 and the lower half bottle body 11 from rotating relative to each other when the bottle cap 2 is opened. However, in this case, the rotation direction between the upper half bottle body 12 and the lower half bottle body 11 does not conform to the conventional thread direction. Therefore, when this method is adopted, it is necessary to mark the opening direction of the bottle body and the opening direction of the bottle cap on the bottle body.

[0043] Method 2: The thread directions of the bottle cap 2 and the bottle mouth are the same as the thread directions of the upper half bottle body 12 and the lower half bottle body 11, and the thread pre-tightening force between the bottle cap 2 and the bottle mouth is less than the thread pre-tightening force between the upper half bottle body 12 and the lower half bottle body 11. This method will appropriately increase the thread pre-tightening force between the upper half bottle body 12 and the lower half bottle body 11, which can improve the stable time of the thread connection and prevent the thread connection between the upper half bottle body 12 and the lower half bottle body 11 from loosening during the consumption of the sauce.

[0044] When opening the bottle body in this embodiment, since there is a certain distance between the operation ring 3 and the bottle body, the torque of rotation can be increased. In addition, it can also keep away from the oil stain on the bottle body, and the outer wall of the operation ring 3 can adopt a material with increased friction to facilitate opening the bottle body. In addition, the operation ring 3 can also be connected to the handle 5 to improve the convenience of operating the bottle body and further increase the torque of rotation.

[0045] The manufacturing method of this embodiment is as follows:

[0046] The manufacturing method includes the following steps:

[0047] S1: Blow - mold the integral split - type bottle body 1. Grooves matching the locking block 32 and the limiting ring 4 are respectively formed in the mold used for blow - molding. The length of the integral split - type bottle body 1 blow - molded is greater than the length of the split - type bottle body 1 product. The specific length should meet the following standard: The length of the integral split - type bottle body 1 blow - molded is equal to the length of the split - type bottle body 1 product plus the length of the external - thread section of the lower half bottle body 11 and the remaining allowance for cutting.

[0048] S2: Cut the blow - molded split - type bottle body 1 into the upper half bottle body 12 and the lower half bottle body 11. When cutting, the cutting position can be determined according to the limiting ring 4 on the integral split - type bottle body 1 blow - molded. The cutting position should be the limiting ring 4 provided at the upper end of the lower half bottle body 11.

[0049] S3: Process external threads and internal threads at the upper ends of the lower half bottle body 11 and the upper half bottle body 12 respectively.

[0050] S4: After sleeving the operation ring 3 on the upper half bottle body 12, thread - connect the lower half bottle body 11 and the upper half bottle body 12.

[0051] S5: Install the bottle cap 2 on the bottle mouth of the upper half bottle body 12.

[0052] Among them:

[0053] Before the lower half bottle body 11 and the upper half bottle body 12 are thread - connected in S4, set the sealing ring inside the internal - thread section of the upper half bottle body 12, and then thread - connect the lower half bottle body 11 and the upper half bottle body 12.

[0054] Before installing the bottle cap 2 on the bottle mouth of the upper half bottle body 12 in S5, set the sealing ring inside the bottle cap 2, and then thread - connect the bottle cap 2 and the upper half bottle body 12.

[0055] Embodiment 2: To facilitate placing the operation ring 3

[0056] The difference from Embodiment 1 is that the operation ring 3 and the limiting ring 4 are made of magnetic materials and can attract each other. When the bottle body does not need to be opened, the operation ring 3 can be adsorbed on the upper limiting ring 4. When the bottle body needs to be opened, the operation ring 3 can be adsorbed on the lower limiting ring 4.

[0057] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc. is the description of the structure of the present invention based on the drawings shown. It is only for the convenience of describing the present invention simply, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0058] For the "first" and "second" in this technical solution, they are only used to distinguish the names of the same or similar structures, or the corresponding structures with similar functions, rather than arranging the importance of these structures, nor having an order, or comparing sizes, or other meanings.

[0059] In addition, unless otherwise clearly specified and defined, the terms "installation" and "connection" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two structures. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the general idea of the present invention and in connection with the specific context of this solution.

Claims

1. A blow - molded bottle for placing sauce and its manufacturing method, comprising a split - type bottle body (1) and a bottle cap (2). The split - type bottle body (1) includes an upper half - bottle body (12) with a bottle mouth and a lower half - bottle body (11). The bottle cap (2) is threadedly connected to the bottle mouth, and the upper half - bottle body (12) is threadedly connected to the lower half - bottle body (11). It is characterized in that: An operation ring (3) is sleeved on the upper half - bottle body (12). The operation ring (3) can move up and down relative to the upper half - bottle body (12). A locking block (32) is arranged on the outer wall of the upper half - bottle body (12), and a locking groove (31) matching the locking block (32) is opened on the inner wall of the operation ring (3). When the operation ring (3) is moved until the locking block (32) enters the locking groove (31), the relative position of the upper half - bottle body (12) and the lower half - bottle body (11) can be driven by the operation ring (3). Limiting rings (4) are arranged at the upper ends of both the upper half - bottle body (12) and the lower half - bottle body (11), and the limiting rings (4) are used for the movement of the operation ring (3). The manufacturing method includes the following steps: S1: Blow - mold the split - type bottle body (1) integrally. Grooves matching the locking block (32) and the limiting ring (4) are respectively opened in the mold used for blow - molding. The length of the integrally blow - molded split - type bottle body (1) is greater than the length of the split - type bottle body (1) product. S2: Cut the blow - molded split - type bottle body (1) into the upper half - bottle body (12) and the lower half - bottle body (11). S3: Process external threads and internal threads at the upper ends of the lower half - bottle body (11) and the upper half - bottle body (12) respectively. S4: After sleeving the operation ring (3) on the upper half - bottle body (12), threadedly connect the lower half - bottle body (11) and the upper half - bottle body (12). S5: Install the bottle cap (2) on the bottle mouth of the upper half - bottle body (12).

2. A blow - molded bottle for placing sauce and its manufacturing method according to claim 1, It is characterized in that: In S2, the cutting position can be determined according to the limiting ring (4) on the integrally blow - molded split - type bottle body (1), and the cutting position should be the limiting ring (4) arranged at the upper end of the lower half - bottle body (11).

3. A blow - molded bottle for placing sauce and its manufacturing method according to claim 1, It is characterized in that: In S4, before threadedly connecting the lower half - bottle body (11) and the upper half - bottle body (12), a sealing ring is arranged inside the internal - thread section of the upper half - bottle body (12), and then the lower half - bottle body (11) and the upper half - bottle body (12) are threadedly connected.

4. A blow - molded bottle for placing sauce and its manufacturing method according to claim 1, It is characterized in that: In S5, before installing the bottle cap (2) on the bottle mouth of the upper half - bottle body (12), a sealing ring is arranged inside the bottle cap (2), and then the bottle cap (2) and the upper half - bottle body (12) are threadedly connected.

5. A blow - molded bottle for placing sauce and its manufacturing method according to claim 1, It is characterized in that: In S1, the length of the split bottle body (1) formed by integral blow molding is equal to the length of the split bottle body (1) product plus the length of the external thread section of the lower half bottle body (11) and the allowance left after cutting.

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