Device for producing container products from plastic material

By adopting uniform load distribution and mold component support structure in plastic container manufacturing equipment, the problems of unstable operation and high wear have been solved, and efficient container production has been achieved.

CN223918643UActive Publication Date: 2026-02-17ROMMELAG ENGINEERING GMBH DE
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Patent Information

Application Number
CN202422748293.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2023-11-13
Filing Date
2024-11-12
Publication Date
2026-02-17
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

Existing technologies for manufacturing plastic containers suffer from problems such as unstable operation and significant wear, resulting in low production efficiency.

Method used

Each guide rail has at least three distinct rail segments that extend linearly along a predetermined length. Through uniform load distribution and the support structure of the mold components, a uniform and balanced load distribution and low wear are achieved.

Benefits of technology

It improved the smoothness and productivity of equipment operation and reduced the wear of key components, especially mold components and mold component housings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to equipment for manufacturing a container product made of plastic materials, the container product can be manufactured by means of a forming device (1), and the forming device is provided with a single mold part (7). The utility model relates to a method for forming a container product, comprising a plurality of mold parts, which are arranged one behind the other in pairs to form the respective container product along a forming section in such a way as to move towards each other and away from each other, each pair of mold parts being movably guided along two spatially separated guide rails. Each guide rail has at least three rail sections which are different from one another and which each extend linearly over a predeterminable length such that a plurality of mould parts of a rail section are arranged one behind the other in a common plane in an extending manner; and / or each guide rail is designed with all rail sections thereof as a closed kinematic chain, which has a total of eighteen mould parts as chain links, which are connected to one another in an articulated manner.
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Description

Technical Field

[0001] This utility model relates to an apparatus for manufacturing container products made of plastic material, the container products being manufactured by means of a molding device having a single mold component, the mold components being arranged in pairs along a molding path in a manner that moves towards and away from each other to form corresponding container products, each pair of mold components being guided to move along two spatially separated guide tracks. Background Technology

[0002] According to DE102014001446A1, an apparatus of the type described above is known for manufacturing at least one container product made of plastic material. This apparatus is formed by a molding device, filled with a predetermined container contents by a filling device, and sealed by a sealing device. The manufactured container products are then supplied to a post-processing zone where temperature-influencing effects are applied to the container products and / or the container contents. The molding device has a single mold component, which forms the container product in pairs, moving towards and away from each other, sequentially along a molding zone or molding path. Each pair of mold components is synchronously and cyclically guided along two spatially separated guide tracks. Each guide track, constituting a kinematic chain as a chain drive, has a total of fifteen mold components, and three mold components of each guide track are sequentially arranged along a vertically extending straight track section along the molding path, forming a manufacturing area for the container product to be formed. The guide rail sections extend in a straight line along the actual shaped road section, while the outer sections of each guide rail are arranged in a curved or wavy manner.

[0003] Through WO2023 / 0391236A1 ( Figure 2 A) A similar apparatus for manufacturing container products made of plastic material is known, wherein each of the two guide tracks has a total of fourteen mold components, and the actual forming section consists of two pairs of opposing mold components arranged sequentially along a straight track section to achieve container forming only. On the opposite side of the forming section of each guide track, another straight track section is formed, along which multiple mold components, particularly three mold components, are arranged sequentially in a common plane extending parallel to the plane with the forming section. Alternatively, a corresponding chain track moves in this region via two guide rollers along a circular track and synchronously with another chain track. Utility Model Content

[0004] Starting from this prior art, the object of this invention is to further improve upon the production of individual container products with high productivity while maintaining the advantages of known solutions, particularly minimizing operational stability and thus, consequently, minimizing wear. This object is achieved by a device according to this invention.

[0005] By employing a configuration where each guide rail has at least three distinct rail segments extending linearly over a predetermined length, multiple mold components within a single rail segment are arranged sequentially in a common plane. This configuration achieves a uniform and balanced load distribution for each guide rail's circulating mold components, while also ensuring mutual support between the sequentially arranged mold components of any given linear rail segment. Consequently, even with identical circulation or chain speeds for each guide rail (as demonstrated in the prior art), high operational smoothness and low wear on key components of the equipment (such as mold components and mold component housings) are achieved. Each linearly extending rail segment of any guide rail is continuously supported by preceding and / or following linear rail segments after passing the reversing section, specifically allowing for a uniform load distribution within each guide rail.

[0006] The purpose of this invention is also achieved by a device according to this invention. Based on the same prior art, this invention further specifies that each guide rail, with all its rail segments forming a closed motion chain, the motion chain comprising a total of eighteen mold components as chain links, the mold components being hingedly connected to each other. Although each guide rail has up to eighteen mold components, and although this results in a larger forming part weight for each guide rail or each chain drive, a uniform and balanced load distribution is achieved for the circulating mold components for each guide rail, thereby distributing six mold components in the form of semi-forming parts on each side along the configurable guide rail in a particularly advantageous manner. However, the mutual reinforcement of the mold components along each rail segment is also important in this regard, which leads to the homogenization of chain movement. Due to the eighteen forming parts or mold components arranged in pairs and circulating synchronously, higher productivity of container products manufactured by belt manufacturing is achieved using this device, even if the device operates at the same circulation or chain speed as the prior art solution with fifteen or fourteen mold components per guide rail.

[0007] In a particularly preferred embodiment of the device according to the present invention, at least four mold components of each guide rail are guided along a straight track segment arranged sequentially in succession along the forming section. The specially reinforced overall configuration structure for the device is achieved as follows: the individual straight track segments of each guide rail form a right-angled triangle in an imaginary extension line, which is preferably constructed as an isosceles triangle, thereby forming a balanced force triangle.

[0008] In another preferred embodiment of the device according to this invention, each straight track segment of the guide rail transitions at its end into a curved track segment, the curvature of which is chosen such that the straightness of the preceding track segments is maintained for as long as possible. Preferably, the curved track segment has a gentler curvature than an imaginary curved circle that intersects at the ends of an imaginary triangle containing the straight track segments. Specifically, the radius of curvature of the curved track segment is smaller than the radius of curvature of the circumcircle of the triangle formed by the three ends of the straight track segments. Particularly advantageously, the corresponding guide rail is supported in its turning region containing the curved track segment by the contour of a support device following the corresponding curvature, wherein at least one support device serves as a tensioning device for a transmission device, particularly a chain drive device, including a movablely hinged mold component, which follows the configurable guide rail. This results in a generally smooth and low-wear cycle for the corresponding chain drive device that circulates the mold component along the triangle in a predetermined manner.

[0009] In another preferred embodiment of the device according to this invention, a portion of the straight track section of the corresponding guide track, including the forming section, is guided, and in particular supported, on its side away from the forming section by an integral track extending linearly in its middle region, in which adjacent mold components abut against each other at their ends. Due to the continuous track extension, a transition-free guide is created in the region of the forming section, allowing for unobstructed operation.

[0010] In another preferred embodiment of the device according to the present invention, the number of mold components for each guide rail is selected such that the distance between adjacent manufactured container products within the forming section is minimized, thereby minimizing the size of the connecting pieces located therebetween.

[0011] In another preferred embodiment of the device according to this invention, the number of mold components for each guide rail is selected such that the distance between adjacent manufactured container products is minimized, thereby minimizing the size of the connecting pieces located between them, preferably having a width of less than 0.7 cm when viewed along the direction of movement of the container product. For standard ampoules as container products, particularly ampoules for containing eye drops, inhalants, and injections (which have a generally standardized typical height, with differences between different types of ampoules measured in millimeters), the width of the connecting pieces, which are typically components of card scrap from which the ampoule can be detached, particularly by stamping, can be minimized. Advantageously, to reduce scrap, the corresponding connecting pieces can now be constructed to be less than 0.7 cm in width, as is possible according to this invention, thus proving particularly suitable for the number of mold components of eighteen mold components per guide rail.

[0012] In another preferred embodiment of the device according to this invention, particularly for further reducing wear, a forming positioning element is provided on the forming inlet side between the guide rails, prior to the start of the forming section. The forming positioning element, positioned on the inlet side between the two guide rails, allows the mold to be precisely oriented or positioned within the forming zone within a range that is directed towards and away from the moving mold component pair.

[0013] In another preferred embodiment of the device according to this invention, particularly for further reducing wear and improving production safety, a spreading element is provided at the end of the forming section between the guide rails on the forming exit side. This spreading element ensures that the mold component pair or semi-formed part reliably opens as it leaves the forming section in the form of a forming zone on the exit side. This also enables safe operation.

[0014] In another particularly preferred embodiment of the device according to the present invention, it is specified that: due to the homogenization of the straight and curved extensions of each track section having the same number of mold components, uniform and low-wear chain movement is achieved with the chain extensions being approximately balanced. This is generally not possible when each guide track has an odd number of mold components, and preferably each guide track has only eighteen mold components as an even number.

[0015] In another preferred embodiment of the device according to the present invention, it is specified that the number of mold components for each straight track section of the guide track is the same, and the number of mold components in the curved track section is also the same. Attached Figure Description

[0016] The device according to this utility model will be explained in detail below with reference to embodiments. (See attached drawings.)

[0017] Figure 1 An end-side view of the solution in the prior art (DE102014001446A1) is shown;

[0018] Figure 2 Showing with Figure 1 The corresponding illustrations are now used to explain the device according to this utility model;

[0019] Figure 3 Showing according to Figure 2 The component of the device is in the form of two closed chains having a mold component receiving portion along a guide track;

[0020] Figure 4 Showing according to Figure 2 A perspective view of the molding positioning element located on the molding inlet side; and

[0021] Figure 5 Shown in accordance with Figure 2 A perspective view of the support element used on the forming outlet side of the equipment. Detailed Implementation

[0022] Figure 1 This diagram illustrates a possible embodiment of a known apparatus as part of a non-cycle rotational molding machine (not shown), wherein the actual molding device 1 cooperates with a demolding device 3, which assists in the demolding process of the container or container product (e.g., an ampoule) constructed in the molding device 1. The molding device 1 is an apparatus for performing a blow molding method, particularly as part of a known blow molding, filling, and sealing method (BFS method), which is known under the patentee's trademark as the Botelpack® system and, more precisely, in the present case, in one embodiment where five different molding steps are performed along a vertical manufacturing line at different stations, particularly three stations. In a rotary or cyclic setup, here a single mold component 7 or mold half (in...) Figure 1 (Only some of these are marked) They move in pairs towards each other along the guide section of the closed implementation to construct a closed manufacturing mold for the corresponding container product, and then move apart to open the mold. In addition to forming, the corresponding container product is additionally filled with fluid and then aseptically sealed. The relevant manufacturing steps are common in the BFS method and will not be discussed in detail here.

[0023] As from Figure 1As can be seen, the container chain 9, constructed by means of the molding device 1, emerges from the molding exit side of the demolding device 3 at the exit point marked 2 along the manufacturing line 5. As is common, the container chain 9 has a wide shape, with multiple individual container products (in the present case, ampoule-like design) arranged side by side in the container chain 9. The container chain 9 may, for example, have eight container products, such as ampoules, arranged side by side, and in order to assist in supporting the container chain 9 with container products to detach from the molding walls of the individual mold parts 7 that move away from each other after the molding process, the demolding devices of the container chain 9 deflect in opposite directions, as indicated by double arrows 13. The individual container rows within the container chain 9 are arranged sequentially, as shown, and are each surrounded by a card-shaped plastic material 15 manufactured by means of which defines connecting pieces 18 of a predetermined width between adjacent container rows. In order to obtain the actual container product, the container product is eventually separated from the card-shaped plastic material 15, in particular punched out, and the associated plastic material is then left as card waste in a common manner.

[0024] Then, looking downwards along the transport direction of container chain 9, a post-processing zone 20 is connected below the demolding device 3. This post-processing zone can exert a temperature-influencing effect on the corresponding container product or the contents of the corresponding container. Detailed information for this is available from DE102014001446A1.

[0025] The previous descriptions of existing technology also apply to [the technology described earlier]. Figure 2 And subsequent devices according to the present invention, and in this regard, the same reference numerals according to the prior art are also used for the same components used in the devices according to the present invention. However, for the sake of simplicity, in Figure 2 and Figure 3 Mold component 7 is omitted, so only the mold component receiving portion 10 is shown, on which mold component 7 is correspondingly secured and fixed. In this regard, the following description of mold component 7 also applies to the mold component receiving portion 10, which can be directly disposed separately.

[0026] according to Figure 2 The device according to this utility model also has a molding apparatus generally marked 1, which has a single mold component 7, similar to that according to Figure 1 The solution, for the sake of simplicity, only shows the mold component receiving portion 10, which is also technically referred to as the molding receiving shoe. Figure 2For simplicity, not all mold component receptacles are marked 10, and there are a total of eighteen mold component receptacles 10. Therefore, the same eighteen individual mold components 7 can move along the guide rail 22 (previously the guide path 8). Individual mold components 7 and their corresponding mold component receptacles 10 can move in pairs, facing each other and moving away from each other, along two guide rails 22, so that the corresponding container products 10 can be formed sequentially along a common intermediate forming path 24 or forming zone. Relatedly, as in... Figure 1 As shown in the prior art, the mold component 7 or mold half closure also forms a container mold along the manufacturing line 5, which is in the case of... Figure 2 The vertical orientation is shown accordingly. In this regard, manufacturing line 5 also symmetrically divides the equipment into two essentially identical molding halves.

[0027] Especially as Figure 3 As shown, each guide rail 22 has three distinct track sections 26, 28, and 30 in the same manner. These track sections extend linearly to a predetermined length, such that multiple mold components 7 or mold component receiving portions 10 of the corresponding track sections 26, 28, or 30 are arranged sequentially in a common plane E1, E2, and E3. Each mold component receiving portion 10 has a molding link 32 on its bottom side, and these molding links are hinged to each other at their ends via hinge portions 34. The individual molding links 32, which are connected adjacently to each other via their respective hinge portions 34, collectively constitute a chain drive device 36, which includes components according to... Figure 2 and Figure 3 The diagram illustrates a molding chain formed by the closure of each mold component 7 following the corresponding guide rail 22. In this regard, according to... Figure 2 and Figure 3 The illustration is only a snapshot, and the chain drive 36 ensures the continuous circulation of the forming chain guiding the track 22 during the operation of the forming device, and more precisely... Figure 2 and Figure 3 Looking from the direction of observation, the forming chain on the right cycles counterclockwise and the forming chain on the opposite left cycles clockwise. The two chain drives 36 move synchronously and cause the opposite mold parts 7 to close within the forming section 24 and construct at least some parts of the container mold.

[0028] For example, especially from Figure 3As further shown, in the first track section 26, essentially along a common plane E1, four individual forming links 32 are arranged in rows, and thus the mold component receiving portion 10 and the mold component 7 are also mated in rows. In the second track section 28, along a common plane E2, at least three adjacent forming links 32 are mated in rows, and in the third track section 30, along a plane E3, at least two adjacent forming links 32 are mated with each other in the same structure. Here, the first track section 26 defines the edge of the forming path section 24 or forming area. The corresponding track section structures, including the respective planes E1, E2, and E3, are... Figure 3 The same applies to the chain drive 36 on the left side when viewed from the same direction. Because the shaped chain links 32 are flatly and without offset at the hinge points 34 in the respectively provided planes E1, E2 and E3 along the straight track sections 26, 28 and 30, a robust kinematic chain is locally realized, which allows for the transmission of large kinematic forces without gaps. Thus, despite the use of a large number of mold components 7, the corresponding chain drive 36 can be safely guided along the provided guide rail 22.

[0029] Understandably, at each start and end point of track segments 26, 28, and 30, one mold component 7 is continuously replaced with another mold component 7 located behind or in front of it in the row, generally maintaining the straight length of the corresponding track segments 26, 28, and 30. Generally, each guide rail 22, with all its straight track segments 26, 28, and 30, including the curved or bent track segments 38 connected at their ends to the straight track segments 26, 28, and 30 respectively, forms a closed kinematic chain or forming chain, corresponding to the described chain drive 36. The individual straight track segments 26, 28, and 30 of each guide rail 22, viewed in imaginary extensions, form a right-angled or substantially right-angled triangle 40, which, according to... Figure 3 The left half of the diagram is constructed as an isosceles triangle. Thus, the chain drive 36 for each guide rail 22 is configured as a right-angled support structure, and the straight-line extending sides of the triangle 40 are reinforced by the support structure of the track segments 26, 28, 30 extending along the straight line (including their respective mold components 7 together with the bottom structure in the form of the corresponding mold component receiving part 10 and the molded chain link 32 provided on the support side).

[0030] As from Figure 2 and Figure 3As further shown, the straight track segments 26, 28, and 30 of each guide rail 22 transition to curved or bent track segments 38 at their ends. The curved track or curvature is selected to maintain the straightness of the preceding track segments 26, 28, and 30 for as long as possible to achieve a high degree of reinforcement. In particular, the bent track segment 38 has a gentler curvature than the imaginary curved circles at the ends of the straight track segments 26, 28, and 30, which are respectively connected to the imaginary triangle 40. Therefore, according to... Figure 2 The illustration shows two opposing guide or drive wheels 42 for each guide rail 22, which can guide or drive the corresponding chain drive 36, and their circular diameters, in any case, constitute a greater curvature than the mold component 7 that guides above it when the track extension bends weakly along the guide rail 22. In particular, the bending radius of the curved track section 38 is smaller than the circumcircle of the triangle 40.

[0031] The corresponding guide rail 22 is supported in its fixed turning area with curved track sections by the contours of support devices 44 that follow the corresponding curvature. These support devices consist of a single guide and drive wheel 42 and an arc-shaped tensioning device 46 for the transmission mechanism (here in the form of a chain drive 36 with movablely hinged mold components 7), which follow the respective guide rail 22. For tensioning the tension section 46, a lever 47 connected thereto is used. This lever is pivotally supported at a pivot point 49 in the lower part of the frame 60, and its preload is obtained by an accumulator in the form of a tension spring 51 configured as a compression spring. Such a tensioning transmission mechanism is constructed identically for both chain drives 36.

[0032] The corresponding guide rail 22 surrounds the molding section 24 (in which adjacent mold components 7 are formed in pairs and abut each other at their ends), and the straight track section 26 is guided by an integral track 48 extending straight in its middle region on the side away from the molding section 24 for the container, particularly supporting it during the molding process. Figure 2 The track 48 shown on the left in the direction of observation can move back and forth relative to the fixed right track 48 in the direction of the molding section 24 by a single hydraulic cylinder 50, thereby determining the clamping force of the mold component 7 on the plastic hose (not shown) located therebetween.

[0033] The number of mold components 7 for each guide rail 22 is chosen to be large enough that the distance between adjacent manufactured container products within the forming section 24 is minimized, thereby accommodating the connecting piece 18 located therebetween. Figure 1The dimensions are also minimized, preferably having a width of less than 0.7 cm when viewed in the direction of the movement path of the container product from top to bottom, so as to minimize possible card waste when stamping the container product.

[0034] Figure 2 The device shown has a forming positioning element 54 between the guide rails 22 before the start of the forming section 24 and therefore at the forming inlet side, such as Figure 4 As shown in more detail below. Such a molding positioning element 54 ensures the precise orientation or positioning of the mold component 7 in the transition region from the curved track section 38 to the straight track section 26, which together define the molding section 24. Figure 4 The molding positioning element 54 shown has a support plate 56 with a screw fixing device 58 on its rear side, comprising four individual bolts, by which the support plate 56, and thus the molding positioning element 54, can be fixed to the frame 60 of the device. Furthermore, a receiving portion 59 for a cross pin 64 is mounted on the front side of the support plate 56. The cross pin is held at least on one side by a locking ring 61 and has two guide or support wheels 63 at its two end regions. These guide or support wheels rest supportively against the rear region of the adjacent mold component 7 within the molding section 24.

[0035] Between the guide rails 22, at the end of the forming section 24, and therefore on the forming exit side, there is a so-called spreading element 62, as per... Figure 5 The illustration is shown in more detail. Due to the opening element 62, reliable opening of the two semi-forming parts or mold components 7 is ensured. These semi-forming parts or mold components, with their free end faces abutting against the plastic tubing (not shown) in the region of the forming section 24 for forming the container, apply at least partially negative pressure within the mold component 7 to achieve the forming of the corresponding container product within the range of vacuum forming. The opening element 62 is particularly suitable for ensuring the opening of the semi-mold components 7 if this vacuum pressure cannot be completely eliminated throughout the forming process or if it causes the mold component 7 to stick to the plastic. For this purpose, the opening element 62 has two upwardly projecting extension arms 65 that protrude in a clamping manner in the exit direction of the forming section 24, and define a gap 66 therebetween through which an accumulator (particularly in the form of a compression spring 68) passes. The expansion element 62 is also connected to the frame 60 of the equipment via the connecting part 70 on the support side. In addition, the two extension arms 65 are accommodated approximately in the middle at a common connecting part 77, so that the two extension arms 65 can move slightly closer or further apart under the action of the compression spring 68 and the corresponding chain drive 36, thereby gently expanding the mold component 7 of the individual mold component pair. Figure 1 There is no equivalent in the existing technology.

Claims

1. An apparatus for manufacturing container products made of plastic material, the container products being manufactured by means of a molding device (1) having a single mold component (7), the mold components being arranged in pairs, moving towards and away from each other, sequentially along a molding path (24) to form corresponding container products, each pair of mold components (7) being guided to move along two spatially separated guide tracks (22), characterized in that, Each guide rail (22) has at least three different rail segments that extend in a straight line over a predetermined length, such that multiple mold components (7) of a rail segment are arranged sequentially in a common plane (E1, E2, E3).

2. The device according to claim 1, characterized in that, Along the straight track section (26) including the forming section (24), at least four mold components (7) of each guide track (22) are arranged sequentially one after the other.

3. The device according to claim 1, characterized in that, Along the straight track section (26) including the forming section (24), the five mold components (7) of each guide track (22) are arranged sequentially one after the other.

4. The device according to any one of claims 1 to 3, characterized in that, Each straight track segment of each guide track (22) forms a right-angled triangle (40) in an imaginary extension.

5. The device according to claim 4, characterized in that, The triangle (40) is an isosceles structure.

6. The device according to claim 4, characterized in that, Each guide rail (22) has a straight track segment that transitions at the end into a curved track segment (38) with the curvature of the curved track segment chosen such that the straightness of the preceding straight track segment is maintained for as long as possible.

7. The device according to claim 6, characterized in that, The curved track section (38) has a radius of curvature smaller than the radius of the imaginary circumcircle, which is connected to the ends of the imaginary triangle (40) having the straight track section.

8. The device according to any one of claims 1 to 3, characterized in that, The corresponding guide rail (22) includes a straight track section (26) of the forming section (24) which is guided on its side away from the forming section (24) by an integral and at least partially straight track (48) in which adjacent mold components (7) are paired and abut against each other at their ends.

9. The device according to claim 8, characterized in that, The corresponding guide track (22) includes a straight track section (26) of the shaped road section (24) supported on its side away from the shaped road section (24) by an integral and at least partially straight track (48).

10. The device according to any one of claims 1 to 3, characterized in that, The number of mold components (7) for each guide rail (22) is selected such that the distance between adjacent manufactured container products within the forming section (24) is minimized, thereby minimizing the size of the connecting piece (18) located therebetween.

11. The device according to claim 10, characterized in that, The connecting piece (18) has a width of less than 0.7 cm when viewed along the direction of the movement path of the container product.

12. The device according to any one of claims 1 to 3, characterized in that, A forming positioning element (54) is provided on the forming entrance side between the guide rails (22) in front of the starting point of the forming section (24).

13. The device according to any one of claims 1 to 3, characterized in that, At the end of the forming section (24), a spreading element (62) is provided on the forming outlet side between the guide rails (22).

14. The device according to any one of claims 1 to 3, characterized in that, The number of mold components (7) used for each guide rail (22) is even.

15. The device according to claim 14, characterized in that, The number of mold components (7) for each straight track section of the guide rail (22) and the number of mold components in the region of the curved track section (38) are the same.

16. The device according to claim 14, characterized in that, Each guide rail (22) uses eighteen mold components (7).

17. An apparatus for manufacturing container products made of plastic material, the container products being manufactured by means of a molding device (1) having a single mold component (7) arranged in pairs along a molding path (24) in a manner that moves towards and away from each other to form corresponding container products, each pair of mold components (7) being guided to move along two spatially separated guide tracks (22), characterized in that, Each guide rail (22) is constructed as a closed motion chain with all its rail sections, the motion chain having a total of eighteen mold parts (7) as links (32), the links being hinged to each other.

18. The device according to claim 17, characterized in that, Along the straight track section (26) including the forming section (24), at least four mold components (7) of each guide track (22) are arranged sequentially one after the other.

19. The device according to claim 17, characterized in that, Along the straight track section (26) including the forming section (24), the five mold components (7) of each guide track (22) are arranged sequentially one after the other.

20. The device according to any one of claims 17 to 19, characterized in that, Each straight track segment of each guide track (22) forms a right-angled triangle (40) in an imaginary extension.

21. The device according to claim 20, characterized in that, The triangle (40) is an isosceles structure.

22. The device according to claim 20, characterized in that, Each guide rail (22) has a straight track segment that transitions at the end into a curved track segment (38) with the curvature of the curved track segment chosen such that the straightness of the preceding straight track segment is maintained for as long as possible.

23. The device according to claim 22, characterized in that, The curved track section (38) has a radius of curvature smaller than the radius of the imaginary circumcircle, which is connected to the ends of the imaginary triangle (40) having the straight track section.

24. The device according to claim 22 or 23, characterized in that, The corresponding guide rail (22) is supported by the contour of the support device (44) following the corresponding curvature in the turning region of the chain drive (36) having the curved track section, at least one of the support devices serving as a tensioning device (46) for a drive device having a movablely hinged mold component (7), the drive device following the configurable guide rail (22).

25. The device according to claim 24, characterized in that, The transmission device is a chain drive device (36).

26. The device according to any one of claims 17 to 19, characterized in that, The corresponding guide rail (22) includes a straight track section (26) of the forming section (24) which is guided on its side away from the forming section (24) by an integral and at least partially straight track (48) in which adjacent mold components (7) are paired and abut against each other at their ends.

27. The device according to claim 26, characterized in that, The corresponding guide track (22) includes a straight track section (26) of the shaped road section (24) supported on its side away from the shaped road section (24) by an integral and at least partially straight track (48).

28. The device according to any one of claims 17 to 19, characterized in that, The number of mold components (7) for each guide rail (22) is selected such that the distance between adjacent manufactured container products within the forming section (24) is minimized, thereby minimizing the size of the connecting piece (18) located therebetween.

29. The device according to claim 28, characterized in that, The connecting piece (18) has a width of less than 0.7 cm when viewed along the direction of the movement path of the container product.

30. The device according to any one of claims 17 to 19, characterized in that, A forming positioning element (54) is provided on the forming entrance side between the guide rails (22) in front of the starting point of the forming section (24).

31. The device according to any one of claims 17 to 19, characterized in that, At the end of the forming section (24), a spreading element (62) is provided on the forming outlet side between the guide rails (22).

32. The device according to any one of claims 17 to 19, characterized in that, The number of mold components used for each guide rail (22) is even.

33. The device according to claim 32, characterized in that, The number of mold components (7) for each straight track section of the guide rail (22) and the number of mold components in the region of the curved track section (38) are the same.

34. The device according to claim 32, characterized in that, Each guide rail (22) uses eighteen mold components (7).

Citation Information

Patent Citations

  • Device for manufacturing container products from plastic material

    DE102014001446A1