Cutting structure for blow molding machine

Abstract

The utility model relates to the technical field of blow molding part cutting, in particular to a cutting structure for a blow molding machine, which comprises a transmission component and a cutting component, the transmission component is used for conveying blow molding parts and comprises a support, a first support seat, a rotary driving part, a first transmission wheel, a transmission strip, a second transmission wheel and a second support seat, and the support is connected with a plurality of first support seats and second support seats. The cutting assembly comprises a cutting knife, the cutting knife is arranged at the end, facing the first supporting base, of the second supporting base, a gap is formed between the cutting knife and the transmission strip, the cutting knife and the transmission strip are oppositely arranged, a cutting edge is arranged on the cutting knife, and the distance from the cutting edge on the cutting knife to the transmission strip is gradually reduced in the direction that the blow molding part is driven by the rotary driving part to move. The blow molding part cutting device has the advantages that by means of the mode that the cutting edge is matched with movement of the conveying position, the cutting position can stably move at the cutting edge, the good cutting effect is achieved, and the manufacturing cost is reduced by means of the fixed cutter and the mode that the conveying blow molding part is driven to move.

Description

Technical Field

[0001] The utility model relates to the technical field of blow molding part cutting, in particular to a cutting structure for a blow molding machine. Background Art

[0002] The blow molding machine makes a tube blank from thermoplastics through extrusion or injection molding, and then places it in a split mold. After the mold is closed, compressed air is immediately introduced into the tube blank to inflate the plastic tube blank and cling to the cavity wall of the mold. Various hollow products are obtained after cooling and demolding. The blow-molded parts can be cut to obtain parts in two areas, so that the blow molding machine can mold some blow-molded parts at one time. The blow-molded parts can be cut to obtain two parts, which also improves the matching stability between the two different parts. Especially for the blow molding of small bottles, cutting after blow molding can be used to conveniently process two different parts. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the shortcomings of the prior art, the utility model provides a cutting structure for a blow molding machine, which utilizes the coordination between the cutting edge and the movement of the transmission part so that the cutting part can move more smoothly at the cutting edge to achieve a better cutting effect, and utilizes a fixed tool and a form of driving the movement of the transmission blow-molded parts to reduce the production cost.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting structure for a blow molding machine, comprising a transmission component and a cutting component for conveying blow-molded parts;

[0007] The transmission assembly includes a bracket, a support seat 1, a rotating driving part, a transmission wheel 1, a transmission bar, a transmission wheel 2 and a support seat 2. The bracket is connected to a plurality of support seats 1 and 2. The support seat 1 is equipped with a rotating driving part. The output shaft of the rotating driving part is connected to the transmission wheel 1. The transmission wheel 2 is rotatably connected to the support seat 1. The transmission wheels 1 and 2 are connected through the transmission bar.

[0008] The cutting assembly includes a cutting knife. A cutting knife is arranged at one end of the support seat 2 toward the support seat 1. A gap is arranged between the cutting knife and the transmission bar for transmitting the parts to be cut. The cutting knife and the transmission bar are arranged relatively to each other. A cutting edge is arranged on the cutting knife. The distance from the cutting edge on the cutting knife to the transmission bar gradually decreases along the moving direction of the blow molded part driven by the rotating drive unit.

[0009] Preferably, the transmission component also includes a support wheel, an extension support plate and a material stopping column. The extension support plate is connected to the support seat 1, and the extension support plate is rotatably connected to the support wheel. The circumferential outer wall of the support wheel is in contact with the transmission bar. The support seat 2 is connected to the material stopping column. The material stopping column is arc-shaped, and a gap is provided between the material stopping column and the transmission bar for transmitting the cut plastic parts.

[0010] Preferably, the cutting assembly also includes bolt 1 and a pressure plate, a plurality of pressure plates are connected to the support seat 2, the pressure plate and the support seat 2 are connected by a plurality of bolts 1, and the cutting knife is located in the middle area relative to the pressure plate and the support seat 2.

[0011] Preferably, the transmission component further comprises a material guide trough, which is connected to the extension support plate, is inclined, and is located at the lower side of the end of the material blocking column.

[0012] Preferably, the cutting assembly also includes bolt 2 and nuts, a plurality of nuts are connected to the support seat 2, the nuts and bolt 2 are connected by threads, and one end of the bolt 2 is tightly attached to the cutting knife.

[0013] Preferably, the transmission component further comprises a collecting frame 1 and a collecting frame 2, wherein the collecting frame 1 is arranged on a lower side of the support seat, and a lower end of the material guide trough extends to an upper side of the collecting frame 2.

[0014] Preferably, the transmission component further comprises a limit plate, and the limit plate is located inside the area surrounded by the transmission bar.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a cutting structure for a blow molding machine, which has the following beneficial effects:

[0017] The cutting structure of the blow molding machine transmits the blow-molded part to be cut between the transmission bar and the cutting knife, and through the cutting edge arranged on the cutting knife, the distance between the transmission bar and the cutting knife gradually decreases along the direction of driving the blow-molded part to move, so that the cutting part can cut the blow-molded part while driving the blow-molded part to move. This form of cooperation between the cutting edge and the movement of the transmission part allows the cutting part to move more smoothly at the cutting edge, achieving a better cutting effect. The form of using a fixed tool and driving the movement of the blow-molded part to replace the form of cutting equipment reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 3 For this utility model Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0021] Figure 4 It is a right view structural schematic diagram of the utility model;

[0022] Figure 5 For this utility model Figure 4 Schematic diagram of the cross-sectional structure at AA in the middle;

[0023] Figure 6 It is a schematic diagram of the top structure of the utility model.

[0024] Markings in the attached drawings: 1. bracket; 2. support seat 1; 3. rotary drive unit; 4. transmission wheel 1; 5. transmission bar; 6. support wheel; 7. extension support plate; 8. material guide trough; 9. transmission wheel 2; 10. support seat 2; 11. bolt 1; 12. pressure plate; 13. cutting knife; 14. bolt 2; 15. nut; 16. material blocking column; 17. collection frame 1; 18. collection frame 2; 19. limit plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] See also Figure 1-6 , a cutting structure for a blow molding machine, comprising a transmission component and a cutting component for conveying blow-molded parts.

[0028] The transmission component includes a bracket 1, a support seat 1 2, a rotating drive unit 3, a transmission wheel 1 4, a transmission bar 5, a transmission wheel 2 9 and a support seat 2 10. The bracket 1 is connected to a plurality of support seats 1 2 and support seats 2 10. The rotating drive unit 3 is installed on the support seat 1 2. The output shaft of the rotating drive unit 3 is connected to the transmission wheel 1 4. The transmission wheel 2 9 is rotatably connected to the support seat 1 2. The transmission wheel 1 4 and the transmission wheel 2 9 are connected through the transmission bar 5.

[0029] The cutting assembly includes a cutting knife 13. The cutting knife 13 is arranged at one end of the support seat 2 10 facing the support seat 1 2. A gap for transmitting the parts to be cut is arranged between the cutting knife 13 and the transmission bar 5. The cutting knife 13 and the transmission bar 5 are arranged relative to each other. A cutting edge is arranged on the cutting knife 13. The distance from the cutting edge on the cutting knife 13 to the transmission bar 5 is gradually reduced along the moving direction of the blow-molded part driven by the rotating drive unit 3. Preferably, the cutting edge on the cutting knife 13 is inclined, and the direction of the cutting edge on the cutting knife 13 is that the distance from the cutting edge to the transmission bar 5 is gradually reduced along the moving direction of the blow-molded part driven by the rotating drive unit 3, so that in the process of transmitting the blow-molded part, the cutting edge can smoothly cut the blow-molded part, especially for bottle parts, after the blow molding is completed. After that, the seal at the end is separated from the bottle body, the rotating drive part 3 is a motor, preferably an electric motor, and the transmission bar 5 is preferably a rubber strip with a circular cross-section. The blow-molded part to be cut is transmitted between the transmission bar 5 and the cutting knife 13, and the distance between the transmission bar 5 and the cutting knife 13 is gradually reduced along the direction of driving the blow-molded part through the cutting edge set on the cutting knife 13, so that the cutting part can cut the blow-molded part while driving the blow-molded part to move. This form of cooperation between the cutting edge and the movement of the transmission part allows the cutting part to move more smoothly at the cutting edge, achieving a better cutting effect, and using a fixed tool and a form of driving the movement of the blow-molded part to replace the form of cutting equipment to reduce the production cost.

[0030] Reference Figure 1 The transmission component also includes a support wheel 6, an extended support plate 7 and a material blocking column 16. The extended support plate 7 is connected to the support seat 2, and the support wheel 6 is rotatably connected to the extended support plate 7. The circumferential outer wall of the support wheel 6 is in contact with the transmission bar 5, and the support seat 2 10 is connected to the material blocking column 16. The material blocking column 16 is in an arc shape, and a gap is provided between the material blocking column 16 and the transmission bar 5 for transmitting the cut plastic parts. The support wheel 6 and the extended support plate 7 are preferably rotatably connected through a bearing, and an axis that matches the support wheel 6 is provided on the extended support plate 7, so that the axis and the support wheel 6 are connected through a bearing, and the support wheel 6 is supported by the extended support plate 7, and the support wheel 6 supports the transmission bar 5, thereby improving the tensioning effect of the transmission bar 5, and changing the direction of the transmission bar 5 through the support wheel 6, so that the transmission bar 5 and the material blocking column 16 cooperate, which can be adapted to transmission to a farther distance.

[0031] Reference Figure 2 The cutting assembly also includes a bolt 11 and a pressure plate 12. A plurality of pressure plates 12 are connected to the support seat 10. The pressure plate 12 and the support seat 10 are connected by a plurality of bolts 11. The cutting knife 13 is located in the middle area between the pressure plate 12 and the support seat 10. By tightening the bolt 11, the bolt 11 drives the pressure plate 12 and the support seat 10 to cooperate and press the cutting knife 13, thereby limiting the position of the cutting knife 13.

[0032] Reference Figure 1The transmission component also includes a material guide trough 8, which is connected to the extended support plate 7. The material guide trough 8 is located at the lower side of the end of the material blocking column 16. The material guide trough 8 is inclined and supported by the extended support plate 7. The material guide trough 8 guides the cut blow-molded parts and guides the blow-molded parts to be transmitted to the inside of the collection frame 18.

[0033] Reference Figure 2 The cutting assembly also includes bolts 14 and nuts 15. A plurality of nuts 15 are connected to the support seat 10. The nuts 15 and the bolts 14 are threadedly connected. One end of the bolts 14 is tightly attached to the cutting knife 13. The support seat 10 and the nuts 15 are preferably fixedly connected. The cutting knife 13 is pressed by the bolts 14 to improve the positioning effect of the cutting knife 13.

[0034] Reference Figure 1 The transmission component also includes a collecting frame 17 and a collecting frame 2 18. The collecting frame 17 is arranged at the lower side of the support seat 2, and the lower end of the material guide trough 8 extends to the upper side of the collecting frame 2 18. The cut lower blow-molded parts are stored by the collecting frame 17, and the cut upper blow-molded parts are stored by the collecting frame 2 18, so as to facilitate the separate and centralized storage of the two parts of the cut blow-molded parts.

[0035] Reference Figure 3 and 6 The transmission component also includes a limit plate 19, which is located inside the area surrounded by the transmission bar 5. When the blow-molded parts are transmitted, the limit plate 19 blocks the inside of the transmission bar 5, so that the transmission bar 5 can better limit the transmitted blow-molded parts and reduce the displacement of the blow-molded parts due to the large deformation of the transmission bar 5.

[0036] When in use, the bottle is transferred to the middle area between the transmission bar 5 and the cutting knife 13, the rotating drive part 3 drives the transmission wheel 4 to rotate, the transmission wheel 4 drives the transmission bar 5 to rotate, so that the transmission bar 5 drives the blow-molded parts to move in the area between the transmission bar 5 and the cutting knife 13. When the transmission bar 5 drives the blow-molded parts to move, it also drives the blow-molded parts to rotate, so that the blow-molded parts roll on the cutting knife 13, and the blow-molded parts are cut by the cutting edge of the cutting knife 13.

[0037] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0038] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0039] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0040] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cutting structure for a blow molding machine, characterized in that: It includes a transmission component and a cutting component for conveying blow molded parts; The transmission assembly comprises a bracket (1), a support seat 1 (2), a rotation driving part (3), a transmission wheel 1 (4), a transmission bar (5), a transmission wheel 2 (9) and a support seat 2 (10); the bracket (1) is connected to a plurality of support seats 1 (2) and support seats 2 (10); a rotation driving part (3) is mounted on the support seat 1 (2); an output shaft of the rotation driving part (3) is connected to the transmission wheel 1 (4); the transmission wheel 2 (9) is rotationally connected to the support seat 1 (2); and the transmission wheel 1 (4) and the transmission wheel 2 (9) are transmission-connected via the transmission bar (5); The cutting assembly comprises a cutting knife (13). The cutting knife (13) is arranged at one end of the support seat 2 (10) facing the support seat 1 (2). A gap for transmitting parts to be cut is arranged between the cutting knife (13) and the transmission bar (5). The cutting knife (13) and the transmission bar (5) are arranged opposite to each other. A cutting edge is arranged on the cutting knife (13). The distance from the cutting edge on the cutting knife (13) to the transmission bar (5) gradually decreases along the moving direction of the blow molded part driven by the rotating drive unit (3).

2. A cutting structure for a blow molding machine according to claim 1, characterized in that: The transmission component also includes a support wheel (6), an extension support plate (7) and a material blocking column (16); the extension support plate (7) is connected to the support seat 1 (2); the extension support plate (7) is rotatably connected to the support wheel (6); the circumferential outer wall of the support wheel (6) is in contact with the transmission bar (5); the support seat 2 (10) is connected to the material blocking column (16); the material blocking column (16) is in an arc shape; a gap is provided between the material blocking column (16) and the transmission bar (5) for transmitting the cut plastic parts.

3. A cutting structure for a blow molding machine according to claim 1, characterized in that: The cutting assembly also includes bolt one (11) and a pressure plate (12), a plurality of pressure plates (12) are connected to the support seat two (10), the pressure plate (12) and the support seat two (10) are connected by a plurality of bolts one (11), and the cutting knife (13) is located in the middle area between the pressure plate (12) and the support seat two (10).

4. A cutting structure for a blow molding machine according to claim 2, characterized in that: The transmission component also includes a material guide trough (8), which is connected to the extension support plate (7), the material guide trough (8) is inclined, and the material guide trough (8) is located at the lower side of the end of the material blocking column (16).

5. A cutting structure for a blow molding machine according to claim 1, characterized in that: The cutting assembly also includes bolts (14) and nuts (15). The support seat (10) is connected with a plurality of nuts (15). The nuts (15) and bolts (14) are connected by threads. One end of the bolts (14) is tightly attached to the cutting knife (13).

6. A cutting structure for a blow molding machine according to claim 1, characterized in that: The transmission component also includes a collecting frame 1 (17) and a collecting frame 2 (18), wherein the collecting frame 1 (17) is arranged on the lower side of the supporting seat 1 (2), and the lower end of the material guide trough (8) extends to the upper side of the collecting frame 2 (18).

7. A cutting structure for a blow molding machine according to claim 1, characterized in that: The transmission component also includes a limiting plate (19), and the limiting plate (19) is located inside the area surrounded by the transmission bar (5).

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