Die

Abstract

The utility model discloses a mould which comprises two mould plates arranged oppositely, a driving structure and two movable moulds, the driving structure drives the two mould plates to be opened and closed mutually, the two movable moulds are detachably arranged on the inner sides of the two mould plates respectively, and the movable moulds are installed on the inner sides of the mould plates in a sliding mode in the front-back direction. And the two movable molds form a first bottle blowing mold and a second bottle blowing mold which are arranged side by side. And when the bottle shape required during bottle blowing needs to be slightly adjusted, only the movable mold is replaced, a complicated driving structure does not need to be adjusted, the replacement is simpler, and the replacement cost can be well reduced. Besides, the movable mold does not need to be placed into the inner sides of the two mold plates from the upper portions of the mold plates for installation and only needs to enter the inner sides of the two mold plates from the side faces of the two mold plates, other devices installed above the mold plates are not affected, and replacement is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of blow molding technology, and in particular to a mold. Background Technology

[0002] In the mold manufacturing field, traditional mold designs typically include two moving molds and a moving mold drive structure to drive these two moving molds to open and close. When making different bottle shapes, the moving molds need to be replaced. Traditional moving mold drive structures have low compatibility with the moving molds, requiring adjustments to both the drive structure and the structures of the two moving molds, increasing the difficulty of adjustment. Furthermore, to improve the structural stability of the moving mold drive structure, its structure becomes more complex, further increasing the difficulty of adjustment. In addition, the presence of water inlets and other structures above the two moving molds further complicates structural adjustments. Utility Model Content

[0003] The purpose of this utility model is to provide a mold to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] The technical solution adopted to solve the above-mentioned technical problems is as follows:

[0005] This utility model provides a mold, including two templates arranged opposite each other, a driving structure and two moving molds. The driving structure drives the two templates to open and close with each other. The two moving molds are respectively detachably installed on the inner side of the two templates. The moving molds are slidably installed on the inner side of the templates in the front-back direction. The two moving molds form a first blow molding mold and a second blow molding mold arranged side by side.

[0006] The beneficial effects of this utility model are:

[0007] When minor adjustments to the bottle shape are required during blow molding, this can be achieved by simply replacing the moving mold, without needing to adjust the complex drive structure. This simplifies the replacement process and significantly reduces replacement costs. Furthermore, the moving mold does not need to be inserted from above the two templates; it can be accessed from the side, without affecting other devices installed above the templates, making replacement even more convenient.

[0008] As a further improvement to the above technical solution, the moving mold is provided with a heating component and a cooling component. The heating component is located on the side of the first blow molding die, and the cooling component is located on the side of the second blow molding die.

[0009] As a further improvement to the above technical solution, the cooling assembly includes a cooling channel surrounding the side of the second blow molding die.

[0010] As a further improvement to the above technical solution, the lower side of the template is provided with a first positioning step, and the lower end of the moving mold abuts against the first positioning step.

[0011] As a further improvement to the above technical solution, the bottom of the two moving molds is provided with clearance space for the track to pass through.

[0012] As a further improvement to the above technical solution, the side of the template is provided with a second positioning step, and the side of the moving mold abuts against the second positioning step.

[0013] As a further improvement to the above technical solution, the template is provided with multiple fixed through holes, and the moving mold is provided with multiple fixed screw holes that correspond one-to-one with the fixed through holes.

[0014] As a further improvement to the above technical solution, the template is provided with a positioning groove, the moving mold is inserted into the positioning groove from the side of the template, and the mold also includes a fixing plate, which is located at the opening of the positioning groove and abuts against the side of the moving mold.

[0015] As a further improvement to the above technical solution, the positioning groove has a dovetail groove structure, and the moving mold is provided with a slider that matches the positioning groove.

[0016] As a further improvement to the above technical solution, the fixing plate is provided with an abutment block that abuts against the side of the moving mold, and the abutment block is slidably disposed in the positioning groove. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of a mold provided by this utility model, wherein the six arrows represent forward, backward, left, right, upward and downward directions respectively;

[0019] Figure 2 This is a front view schematic diagram of an embodiment of a mold provided by this utility model, wherein the four arrows represent left, right, up and down respectively;

[0020] Figure 3 This is a cross-sectional view of an embodiment of a mold provided by this utility model, wherein the four arrows represent left, right, up and down respectively;

[0021] Figure 4 This is a schematic diagram of another embodiment of a mold provided by this utility model, wherein the four arrows represent forward, backward, upward and downward directions, respectively.

[0022] Figure label:

[0023] Template 100, first positioning step 110, second positioning step 120, positioning groove 130, fixing plate 140, abutment block 141, driving structure 200, moving mold 300, first blow molding mold 301, second blow molding mold 302, slider 310. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] The PET blow molding machine includes a frame, a drying tunnel mechanism, a conveying assembly, and a blow molding mechanism. During the blow molding process, the preform is sequentially fed into the drying tunnel mechanism and the blow molding mechanism via the conveying assembly. The blow molding mechanism consists of two parts: a first mold assembly with a heating system for heating and blowing the semi-finished product; and a second mold assembly with cooling water pipes for cooling the blown semi-finished product. In this way, the preform is first heated, then blown, and finally cooled to achieve quenching, resulting in a high-temperature resistant bottle body. This invention mainly adjusts the fixing method of the moving mold 300, so that when a small adjustment to the bottle shape is required during blow molding, it can be achieved by simply replacing the moving mold 300, without needing to adjust the complex drive structure 200. This simplifies replacement and significantly reduces replacement costs.

[0029] Reference Figures 1 to 4 The mold of this utility model is provided in the following embodiment:

[0030] A mold includes two opposing templates 100, a drive structure 200, and two moving molds 300. The drive structure 200 drives the two templates 100 to open and close relative to each other. The two moving molds 300 are detachably mounted inside the two templates 100. The moving molds 300 slide along the front-back direction inside the templates 100. The moving molds 300 do not need to be inserted from above the templates 100; they can be inserted from the side of the templates 100 without affecting other devices mounted above the templates 100. The moving molds 300 form a first blow molding mold 301 and a second blow molding mold 302 arranged side-by-side. The bottoms of the two moving molds 300 have clearance spaces for track passage. An air blowing assembly is located below the bottle mouth of the first blow molding mold 301 for air blowing; details are not elaborated here. The conveyor track transports the preform from the clearance space to the first blow molding die 301 and the second blow molding die 302 in sequence, so that the preform is heated in the first blow molding die 301 to blow into a semi-finished product, and then cooled in the second blow molding die 302.

[0031] The moving mold 300 is equipped with a heating component and a cooling component. The heating component includes a heating resistor, which ensures that the first blow molding die 301 maintains a high temperature. The cooling component includes a water pipe with cooling function located in the second blow molding die 302, which ensures that the second blow molding die 302 maintains a lower temperature. During processing, the preform is first heated and then enters the first blow molding die 301, where it is blown into a semi-finished product by the first blow molding component. The semi-finished product undergoes a heating process upon contact with the first blow molding die 301. Afterward, the semi-finished product is fed into the second blow molding die 302 and blown into a finished bottle body by the second blow molding component. The bottle body undergoes a cooling process upon contact with the second blow molding die 302, thereby achieving the quenching operation of the bottle body. It should be noted that the moving mold 300 is equipped with a pipe interface communicating with the cooling component.

[0032] The drive structure 200 includes a motor 220 and a lead screw 230 transmission structure. The lead screw 230 transmission structure includes a fixed base 210, a motor 220 mounted on the fixed base 210, a lead screw 230 extending laterally, and a nut seat fixedly disposed relative to the push template 100. The motor 220 is drively connected to the lead screw 230, the template 100 is slidably connected to the fixed base 210, and the lead screw 230 is threadedly connected to the nut seat. The motor 220 drives the two templates 100 to open and close relative to each other.

[0033] It should be noted that the drive structure 200 of this utility model is existing technology, and a cylinder, electric push rod, motor 220, and lead screw 230 can be used as the drive unit. Corresponding slide rails are provided for linear motion to improve the accuracy of the movement.

[0034] Specific detachable configuration methods. In some embodiments, refer to... Figure 4The template 100 has a first positioning step 110 on its lower side. The lower end of the moving mold 300 abuts against the first positioning step 110. However, only a portion of the lower end of the moving mold 300 is located on the first positioning step 110, leaving space for the bottle opening to facilitate connection between the bottle opening and the conveying mechanism and the blowing structure. The template 100 also has a second positioning step 120 on its side, which abuts against the side of the moving mold 300. The template 100 has multiple fixing through holes, and the moving mold 300 has multiple fixing screw holes that correspond one-to-one with the fixing through holes. During fixing, the moving mold 300 slides along the first positioning step 110 until it touches the second positioning step 120 and stops. At this point, the fixing screw holes and fixing through holes are perfectly aligned, allowing screws to pass through them sequentially for threaded connection, thus fixing the moving mold 300 within the template 100. Fixing the moving mold 300 from the side of the template 100 avoids interference from other devices above the template 100, making replacement convenient.

[0035] In some embodiments, refer to Figures 1 to 3 The template 100 has a positioning groove 130 extending front to back on its inner side. The front side of the positioning groove 130 has an insertion port. The moving mold 300 is inserted into the positioning groove 130. The mold also includes a fixing plate 140, which has an abutment block 141. This abutment block 141 can also be inserted into the positioning groove 130 and abuts against the front side of the moving mold 300. The fixing plate 140 is fixed to the side of the template 100 with screws, thus fixing the moving mold 300 to the side. The positioning groove 130 serves to position the moving mold 300, while the fixing plate 140 further secures the moving mold 300. In some other embodiments, the insertion port of the positioning groove 130 may also be located on the rear side.

[0036] The positioning groove 130 is a dovetail groove, and the moving mold 300 is equipped with a matching slider 310 to prevent the moving mold 300 from falling off the template 100, thus ensuring a more secure fixation. The matching structure of the slider 310 and the dovetail groove effectively prevents the moving mold 300 from shifting or wobbling during the insertion process, ensuring that the moving mold 300 can be accurately installed in place, thereby improving the overall assembly accuracy of the mold. Simultaneously, once the moving mold 300 is inserted into the positioning groove 130, it is difficult for it to fall off or loosen on its own, maintaining a stable connection even under significant pressure or impact, extending the mold's service life. The dovetail block and dovetail groove guide the moving mold 300 to be inserted into the positioning groove 130 more smoothly, simplifying the installation process.

[0037] Furthermore, the positioning groove 130 extends along the insertion direction of the moving mold 300 and is provided with a dovetail block, and the moving mold 300 is provided with a dovetail groove that matches the dovetail block. This further improves the fixing effect.

[0038] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A mold, characterized in that, include: Two templates positioned opposite each other; A driving structure that drives the two templates to open and close relative to each other; Two moving molds are detachably installed on the inner side of two templates. The moving molds are slidably installed on the inner side of the templates in the front-back direction. The two moving molds form a first blow molding mold and a second blow molding mold arranged side by side.

2. The mold according to claim 1, characterized in that: The moving mold is equipped with a heating component and a cooling component. The heating component is located on the side of the first blow molding die, and the cooling component is located on the side of the second blow molding die.

3. The mold according to claim 2, characterized in that: The cooling assembly includes cooling channels surrounding the side of the second blow molding die.

4. The mold according to claim 1, characterized in that: The lower side of the template is provided with a first positioning step, and the lower end of the moving mold abuts against the first positioning step.

5. A mold according to claim 4, characterized in that: The bottom of the two moving molds is provided with clearance space for the track to pass through.

6. A mold according to claim 4, characterized in that: The template has a second positioning step on its side, and the side of the moving mold abuts against the second positioning step.

7. A mold according to claim 6, characterized in that: The template is provided with multiple fixed through holes, and the moving mold is provided with multiple fixed screw holes that correspond one-to-one with the fixed through holes.

8. A mold according to claim 1, characterized in that: The template is provided with a positioning groove, and the moving mold is inserted into the positioning groove from the side of the template. The mold also includes a fixing plate, which is located at the opening of the positioning groove and abuts against the side of the moving mold.

9. A mold according to claim 8, characterized in that: The positioning groove has a dovetail groove shape, and the moving mold is provided with a slider that matches the positioning groove.

10. A mold according to claim 8, characterized in that: The fixed plate is provided with an abutment block that abuts against the side of the moving mold, and the abutment block is slidably disposed in the positioning groove.

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