Production mold of chain row type plastic ampoule bottle and continuous blowing, filling and sealing all-in-one machine

Abstract

The utility model discloses a production mold of a chain row type plastic ampoule bottle and a continuous blowing, filling and sealing all-in-one machine, and relates to the technical field of liquid medicine filling and sealing equipment, in particular to the production mold of the chain row type plastic ampoule bottle and the continuous blowing, filling and sealing all-in-one machine, which are of a two-section type structure for closing the mold through relative movement. The molding device is used for molding a bottle blank into a bottle body and comprises a molding part, a molding part and a molding part, and a molding cavity used for molding the bottle body is formed in the molding part; according to the production mold of the chain row type plastic ampoule bottle and the continuous blowing, filling and sealing all-in-one machine, the clamping part is integrated in the forming mold, clamping is preferentially carried out before a bottle blank is formed, releasing is carried out after the mold is opened, the clamping duration of the bottle blank clamping position is guaranteed, and the bottle blank has enough cooling and shaping time; and meanwhile, the clamping part and the forming mold move synchronously, so that the precision requirement on equipment movement is reduced, and the production and maintenance cost of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid medicine filling and sealing equipment, and more specifically, to a production mold for chain-type plastic ampoule bottles. In addition, the utility model also relates to a continuous blow molding, filling and sealing integrated machine including the production mold for the chain-type plastic ampoule bottles as described above. Background Art

[0002] A continuous blow molding, filling and sealing integrated machine can realize the forming, filling and sealing of plastic containers for liquids at one time. Its main component is a mold for bottle body forming. The equipment forms ampoule bottles in the mold by blowing air and sucking air by the mold. At the moment when the mold opens, clamps from the upper and lower ends are required to hold and keep the bottle body in the middle position of the mold, so as to realize continuous operation and form a product chain. This requires that at the moment when the mold opens, the clamps need to have a strong clamping force to ensure the stability of the product chain during continuous operation.

[0003] In the prior art, an additional clamping mechanism is added inside the integrated machine. The clamping mechanism is separated from the mold. When the bottle blank is formed in the mold and moves to a specified position, that is, the position where the clamping mechanism is located, the clamping mechanism clamps the bottle body, and then the mold opens. There are problems that the clamping part of the bottle blank is clamped by the clamping mechanism for a short time, and the plastic cooling and forming time of this part is short. When the mold opens, it is easy to cause bottle body deformation, product chain bending and other problems, which affect the overall operation stability of the equipment. Moreover, it is necessary to ensure the position accuracy of the mold after movement and ensure that the clamping position of the bottle blank is at the working position of the clamping mechanism, which requires a high overall movement accuracy of the equipment and increases the production and maintenance costs of the equipment.

[0004] In summary, how to provide a production mold for chain-type plastic ampoule bottles and a continuous blow molding, filling and sealing integrated machine that can avoid bottle body deformation and product chain bending during mold opening and reduce the production and maintenance costs of the equipment is an urgent problem to be solved by those skilled in the art at present. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a production mold for chain-type plastic ampoule bottles. By integrating a clamping part in the forming mold, clamping is preferentially carried out before the bottle blank is formed, and then released after the mold opens, so as to ensure the clamping duration of the clamping position of the bottle blank, make it have enough cooling and shaping time, avoid bottle body deformation during mold opening, and at the same time, the clamping part moves synchronously with the forming mold, reducing the accuracy requirement for the movement of the equipment, that is, reducing the production and maintenance costs of the equipment.

[0006] Another purpose of the utility model is to provide a continuous blow molding, filling and sealing integrated machine including the production mold for the chain-type plastic ampoule bottles as described above, which can achieve the same purpose.

[0007] To achieve the above object, the present utility model provides the following technical solutions:

[0008] A production mold for a chain-type plastic ampoule bottle, which is a two-piece structure that closes the mold through relative movement and is used to shape a preform into a bottle body, including:

[0009] A forming part, inside which there is a forming cavity for forming the bottle body;

[0010] A clamping part, fixedly connected to the forming part, and inside which there is a clamping body for clamping the preform. The working surface of the clamping body is on the front side of the working surface of the forming part. Relative movement can occur between the clamping body and the forming part, and an elastic body is arranged between the clamping body and the forming part along the relative movement direction.

[0011] Preferably, the clamping part further includes a fixture base, the clamping body is slidably installed on the fixture base, and the fixture base is fixedly connected to the bottom of the forming part.

[0012] Preferably, sliding rails are arranged at both ends of the clamping body, and sliding grooves adapted to the sliding rails are arranged in the fixture base. The sliding direction of the sliding rails is the same as the relative movement direction of the clamping body and the forming part.

[0013] Preferably, a limiting protrusion is arranged at the end of the sliding rail, and / or a limiting baffle is arranged in the sliding groove to limit the maximum relative displacement between the clamping body and the forming part.

[0014] Preferably, a third circulating water channel for heat dissipation is arranged inside the clamping body, or heat dissipation fins are arranged on the surface of the clamping body.

[0015] Preferably, the forming part includes:

[0016] A main mold assembly for forming the bottle body of the bottle;

[0017] A head mold assembly for forming and encapsulating the bottle head of the bottle. The head mold assembly and the main mold assembly can move relative to each other, and the relative movement direction is the same as the mold closing direction.

[0018] Preferably, a second circulating water channel for heat dissipation and a second air channel for gas flow are arranged inside the main mold assembly. A plurality of groups of second air holes are arranged on the inner wall of the forming cavity of the main mold assembly, and the second air holes are communicated with the second air channel.

[0019] Preferably, a first circulating water channel for heat dissipation and a first air channel for gas flow are arranged inside the head mold assembly. A plurality of groups of first air holes are arranged on the inner wall of the forming cavity of the head mold assembly, and the first air holes are communicated with the first air channel.

[0020] A continuous blow-fill-seal integrated machine includes the production mold for chain-type plastic ampoule bottles described in any one of the above.

[0021] The production mold for chain-type plastic ampoule bottles provided by the present utility model, compared with the prior art, has at least the following beneficial effects:

[0022] 1. The clamping part is integrated in the mold, and the clamping part is fixedly connected to the forming part. The clamping part moves synchronously with the forming part, effectively ensuring the stable relative position relationship between the clamping part and the forming part. When the forming part opens the mold, the bottle body is in the working area of the clamping part, ensuring the accuracy and stability of clamping. Moreover, compared with the traditional independent clamping mechanism, the structure of this application is simple, easy to maintain, and reduces the production and maintenance costs of the equipment.

[0023] 2. Before the bottle preform is formed, the clamping part first clamps the bottle preform, and then the forming part closes the mold to form the bottle preform. After the forming operation is completed, the forming part first opens the mold. After the bottle body is demolded, the clamping part releases. That is, the clamping of the bottle preform runs through the entire forming process, ensuring the clamping and cooling time at the clamping position of the bottle preform, reducing the probability of deformation of the bottle body when the forming part opens the mold, avoiding the bending of the product chain, and ensuring the stable operation of the equipment.

[0024] The continuous blow-fill-seal integrated machine provided by the present utility model includes the above-mentioned production mold for chain-type plastic ampoule bottles and has the same beneficial effects. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0026] Figure 1 It is a schematic structural diagram of the production mold for chain-type plastic ampoule bottles provided by the present utility model;

[0027] Figure 2 It is a schematic structural diagram of the unilateral mold provided by the present utility model;

[0028] Figure 3 It is a three-dimensional schematic diagram of the unilateral mold provided by the present utility model;

[0029] Figure 4 Provided by the present utility model Figure 3 The enlarged view of part A in

[0030] In the figure:

[0031] 1. Forming part; 101. Head mold assembly; 1011. First air hole; 1012. First circulating water channel; 1013. First air duct; 102. Main mold assembly; 1021. Second air hole; 1022. Second circulating water channel; 1023. Second air duct;

[0032] 2. Clamping part; 201. Clamping body; 2011. Slide rail; 2012. Limit projection; 202. Elastic body; 203. Fixture seat; 2031. Chute; 2032. Limit baffle;

[0033] Figure 2 The arrow indicates the mold closing direction. Detailed implementation manners

[0034] 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 belong to the protection scope of the present invention.

[0035] The core of the present invention is to provide a production mold for chain - type plastic ampoule bottles. By integrating a clamping part in the forming mold, prior to the forming of the bottle preform, clamping is performed first, and then release is carried out after mold opening, ensuring the clamping duration at the clamping position of the bottle preform, enabling it to have sufficient cooling and shaping time, avoiding the deformation of the bottle body during mold opening. At the same time, the clamping part moves synchronously with the forming mold, reducing the precision requirements for the movement of the equipment, that is, reducing the production and maintenance costs of the equipment.

[0036] Another core of the present invention is to provide a continuous blow - fill - seal integrated machine including the above - mentioned production mold for chain - type plastic ampoule bottles, which has the same technical features and can achieve the same purpose.

[0037] Please refer to Figures 1 - 4 , a production mold for chain - type plastic ampoule bottles, which is a two - piece structure that closes the mold through relative movement and is used to shape the bottle preform into a bottle body, including:

[0038] Forming part 1, with a forming cavity for bottle body forming arranged inside;

[0039] Clamping part 2, fixedly connected to the forming part 1, and having a clamping body 201 for clamping the bottle preform arranged inside. The working surface of the clamping body 201 is on the front side of the working surface of the forming part 1. Relative movement can occur between the clamping body 201 and the forming part 1, and an elastic body 202 is arranged between the clamping body 201 and the forming part 1 along the relative movement direction.

[0040] During use, place the heated preform between the molds in the open mold state;

[0041] First, perform mold closing. During the mold closing process, first clamp and fix the preform. Since the working surface of the clamping body 201 is on the front side of the working surface of the forming part 1, when closing the mold, the working surface of the clamping body 201 first contacts the preform and completes the clamping. After that, the relative position of the preform with respect to the clamping part 2 is fixed. For example, in a two-piece symmetric mold, the fixed position of the preform is the middle position of the two-piece mold;

[0042] As the mold continues to close, the clamping body 201 remains stationary, and the forming part 1 continues to close until the forming cavity is closed. The preform is formed, cooled, and shaped in the forming cavity. After shaping, perform mold opening;

[0043] During the mold opening process, the forming part 1 moves away in the reverse direction. During this process, the clamping body 201 continuously clamps the clamping position of the preform, and performs cooling and shaping to ensure its cooling duration, so that the bottle body will not deform and the product chain will not bend during the mold opening process;

[0044] Until complete mold opening is achieved, the clamping body 201 moves away in the reverse direction to release the preform.

[0045] Since an elastic body 202 is provided between the clamping body 201 and the forming part 1, therefore, only a driving mechanism needs to be provided inside the forming part 1 for the entire mold;

[0046] During the mold closing process, when the clamping body 201 does not contact the preform, the clamping body 201 is not affected by an external force and moves synchronously with the forming part 1. When the clamping body 201 contacts the preform, the movement of the clamping body 201 is blocked, and the elastic body 202 is compressed and stores energy, that is, the clamping body 201 applies a clamping force to the preform. During this process, the forming part 1 continues to close. As the gap between the two sides of the forming part 1 decreases, the clamping force applied by the clamping body 201 continuously increases until the forming part 1 completes mold closing;

[0047] During mold opening, the forming part 1 moves first, and the clamping body 201 is affected by the elastic body 202 and still applies a clamping force to the preform. However, as the distance between the two sides of the forming part 1 increases, the elastic potential energy in the elastic body 202 gradually decreases, and the clamping force between the clamping body 201 and the preform gradually decreases until the clamping body 201 is completely separated from the preform. It should be noted that before the clamping body 201 is separated from the preform, the demolding operation of the forming part 1 and the bottle body has been completed, that is, during the demolding process of the forming part 1, the clamping part of the preform is always under the clamping action of the clamping body 201. Therefore, problems such as bottle body deformation and product chain bending will not occur, thereby ensuring the production stability of the equipment;

[0048] Meanwhile, the clamping part 2 is fixedly connected to the forming part 1. When the forming part 1 moves relative to the entire production equipment, the clamping part 2 moves synchronously, and the relative position relationship between the two is stable. That is, there is no need to consider the positioning problem after the relative movement of the two, which reduces the design difficulty and production cost.

[0049] In some embodiments, the clamping part 2 further includes a fixture base 203. The fixture body 201 is slidably installed on the fixture base 203, and the fixture base 203 is fixedly connected to the bottom of the forming part 1;

[0050] Such as Figure 1 and Figure 2 As shown, the forming part 1 and the clamping part 2 are two relatively independent units. Among them, the fixture base 203 is fixedly connected to the forming part 1 in a combined manner, which is conducive to the modular design of the equipment. When a local problem occurs, it is convenient for replacement and maintenance;

[0051] In some embodiments, the forming part 1 is directly used as the fixture base 203. As Figure 3 shown, an installation groove is directly provided at the bottom of the forming part 1, and the fixture body 201 is directly slidably installed in the installation groove. Both embodiments should be protected by this application;

[0052] Meanwhile, as Figures 1 - 3 shown, the clamping part 2 is arranged below the forming part 1, that is, the bottom of the preform is clamped, so as to facilitate filling from the top of the bottle body, and the clamping part 2 does not affect the filling;

[0053] However, in some embodiments, the clamping part 2 is arranged on the side, which also does not affect the filling. However, for the production of chain-type plastic ampoule bottles, the clamping part 2 arranged on the side can only clamp the two ends of the product chain. During demolding, it is impossible to ensure that the shape of the bottle body in the middle part of the product chain does not deform, while the clamping part 2 arranged at the bottom end of the forming part 1 can clamp the bottom of each group of bottle bodies, effectively ensuring the stability of the bottle body during mold opening. Both of the above arrangements of the clamping part 2 are within the protection scope of this application.

[0054] In the above embodiments, the relative movement mode between the fixture body 201 and the fixture base 203 or the forming part 1 is sliding, and the elastic body 202 is preferably a straight spring; however, in some embodiments, the relative movement mode between the fixture body 201 and the fixture base 203 or the forming part 1 is rotation, and its elastic body 202 is preferably a torsion spring, which is also protected by this application.

[0055] Furthermore, to ensure the stability of the relative movement between the fixture body 201 and the fixture base 203, as Figure 3As shown, sliding rails 2011 are provided at both ends of the fixture body 201, and a sliding groove 2031 adapted to the sliding rails 2011 is provided in the fixture base 203. The sliding direction of the sliding rails 2011 is consistent with the relative movement direction of the fixture body 201 and the forming part 1;

[0056] In some embodiments, the fixture body 201 and the fixture base 203 are assembled by pulling the sliding rails, or the bottom of the fixture body 201 and the forming part 1 are assembled by pulling the sliding rails. The pulling sliding rails can be arranged at the middle position of the fixture body 201, and the same is protected by this application.

[0057] Furthermore, as Figure 4 shown, a limiting protrusion 2012 is provided at the end of the sliding rail 2011, and / or a limiting baffle 2032 is provided in the sliding groove 2031 for limiting the maximum relative displacement between the fixture body 201 and the forming part 1;

[0058] By providing the limiting protrusion 2012 and / or the limiting baffle 2032, the maximum relative displacement between the fixture body 201 and the forming part 1 is limited to prevent the fixture body 201 from slipping off the fixture base 203. Moreover, it ensures that in the initial state, there is a certain potential energy in the elastic body 202, that is, when the fixture body 201 contacts and clamps the preform, it can quickly generate sufficient clamping force, and when demolding, the clamping force between the fixture body 201 and the bottle body can quickly disappear to complete the separation of the bottle body and the fixture body 201.

[0059] Furthermore, a third circulating water channel for heat dissipation is provided in the fixture body 201, or heat dissipation fins are provided on the surface of the fixture body 201;

[0060] By adding a third circulating water channel in the fixture body 201 and introducing circulating water or other circulating media into the third circulating water channel, the heat inside the fixture body 201 is carried away through the circulation of the media to achieve its rapid cooling, so that the preform at the clamping position of the fixture body 201 can be quickly cooled and shaped to maintain its rigidity and avoid deformation of the bottle body at this position;

[0061] The purpose of providing heat dissipation fins on the surface of the fixture body 201 is also for heat dissipation. The difference is that this method uses the air flow passing through the surface layer of the fixture body 201 to carry away the heat dissipated by the heat dissipation fins;

[0062] The above two heat dissipation methods are both within the protection scope of this application.

[0063] In some embodiments, the forming part 1 includes:

[0064] A main mold assembly 102 for forming the bottle body of the bottle;

[0065] The head mold assembly 101 is used for forming and encapsulating the bottle head of the bottle body. The head mold assembly 101 and the main mold assembly 102 can move relative to each other, and the relative movement direction is the same as the mold closing direction.

[0066] For a mold with filling and sealing functions, it is necessary to first form the bottle body, then perform liquid filling, and finally seal the bottle mouth. If the forming part 1 directly wraps and forms the preform completely, it will be impossible to perform filling, or it will be impossible to complete the sealing in one go after filling. Therefore, the forming part 1 adopts the method of separating the main mold assembly 102 and the head mold assembly 101. As a whole, they can move synchronously relative to the filling and sealing integrated machine, but relative movement can occur between them. Specifically, first, the bottle body is formed, and then the bottle mouth is sealed. That is, the main mold assembly 102 first closes the mold to form, cool, and shape the bottle body. Subsequently, filling is carried out. After filling is completed, the head mold assembly 101 closes the mold to seal, cool, and shape the bottle mouth, thus completing the integrated operation of bottle body forming, filling, and sealing, improving the filling and sealing efficiency.

[0067] In the design, the head mold assembly 101 and the main mold assembly 102 should have independently controllable drive units, that is, the relative position relationship between them is controllable. The head mold assembly 101 can move synchronously with the main mold assembly 102, or the head mold assembly 101 can move relative to the main mold assembly 102.

[0068] Furthermore, a second circulation water channel 1022 for heat dissipation and a second air channel 1023 for gas flow are arranged in the main mold assembly 102. A number of groups of second air holes 1021 are arranged on the inner wall of the forming cavity of the main mold assembly 102, and the second air holes 1021 are communicated with the second air channel 1023.

[0069] A first circulation water channel 1012 for heat dissipation and a first air channel 1013 for gas flow are arranged in the head mold assembly 101. A number of groups of first air holes 1011 are arranged on the inner wall of the forming cavity of the head mold assembly 101, and the first air holes 1011 are communicated with the first air channel 1013.

[0070] Air holes are arranged on the inner walls of the forming cavities of the head mold assembly 101 and the main mold assembly 102 and are communicated with the air channels. When the edge forms the preform, a negative pressure is formed in the forming cavity, making the preform fit against the inner wall of the cavity; at the same time, circulation water channels are arranged in both the head mold assembly 101 and the main mold assembly 102 for the recycled use of the cooling medium to take away the heat in the head mold assembly 101 and the main mold assembly 102, enabling the preform to quickly cool down and be shaped after forming, and avoiding deformation during demolding.

[0071] In addition to the production mold of the chain - arranged plastic ampoule bottle disclosed in each of the above - mentioned embodiments, the present utility model further provides a continuous blow - fill - seal integrated machine including the production mold of the chain - arranged plastic ampoule bottle. For the structures of other parts of the continuous blow - fill - seal integrated machine, please refer to the prior art and will not be elaborated herein.

[0072] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other.

[0073] The above has introduced in detail the production mold of the chain - arranged plastic ampoule bottle and the continuous blow - fill - seal integrated machine provided by the present utility model. Specific examples are used herein to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A production mold for a chain-type plastic ampoule bottle, which is a two-flap structure that is closed by relative movement, and is used to shape the bottle embryo into a bottle body, characterized in that: include: A molding part (1), provided with a molding cavity for molding the bottle body; The clamping part (2) is fixedly connected to the molding part (1), and is provided with a clamping body (201) for clamping the bottle embryo inside, the working surface of the clamping body (201) is located on the front side of the working surface of the molding part (1), the clamping body (201) and the molding part (1) can move relative to each other, and an elastic body (202) is provided between the clamping body (201) and the molding part (1) along the relative movement direction.

2. The production mold for chain-type plastic ampoule bottles according to claim 1, characterized in that: The clamping portion (2) further comprises a clamp seat (203), the clamp body (201) and the clamp seat (203) are slidably mounted, and the clamp seat (203) is fixedly connected to the bottom of the forming portion (1).

3. The production mold for chain-type plastic ampoule bottles according to claim 2, characterized in that: Slide rails (2011) are arranged at both ends of the clamp body (201), and slide grooves (2031) adapted to the slide rails (2011) are arranged in the clamp seat (203), and the sliding direction of the slide rails (2011) is consistent with the relative movement direction of the clamp body (201) and the forming part (1).

4. The production mold for chain-type plastic ampoule bottles according to claim 3, characterized in that: A limiting protrusion (2012) is provided at the end of the slide rail (2011), and / or a limiting baffle (2032) is provided in the slide groove (2031), for limiting the maximum relative displacement between the clamp body (201) and the forming part (1).

5. The production mold for chain-type plastic ampoule bottles according to claim 1, characterized in that: A third circulating water channel for heat dissipation is arranged inside the clamp body (201), or heat dissipation fins are arranged on the surface of the clamp body (201).

6. The production mold for chain-type plastic ampoule bottles according to any one of claims 1 to 5, characterized in that: The forming part (1) comprises: A main mold assembly (102), used for forming the body of the bottle; The head mold assembly (101) is used for forming and packaging the bottle head of the bottle body; the head mold assembly (101) and the main mold assembly (102) are capable of relative movement, and the relative movement direction is consistent with the mold closing direction.

7. The production mold for chain-type plastic ampoule bottles according to claim 6, characterized in that: A second circulating water channel (1022) for heat dissipation and a second air channel (1023) for gas flow are arranged in the main mold component (102); a plurality of groups of second air holes (1021) are arranged on the inner wall of the molding cavity of the main mold component (102); the second air holes (1021) are in communication with the second air channel (1023).

8. The production mold for chain-type plastic ampoule bottles according to claim 6, characterized in that: A first circulating water channel (1012) for heat dissipation and a first air channel (1013) for gas flow are arranged in the head mold assembly (101), and a plurality of groups of first air holes (1011) are arranged on the inner wall of the molding cavity of the head mold assembly (101), wherein the first air holes (1011) are in communication with the first air channel (1013).

9. A continuous blowing, filling and sealing machine, characterized in that: A production mold for a chain-type plastic ampoule bottle comprising any one of claims 1-8.

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