Conical sleeve body forming intelligent production line

Abstract

The utility model relates to an intelligent production line for forming a conical sleeve body. The intelligent production line comprises a mold rack and a conical mold rotationally arranged on the mold rack, an extrusion assembly is arranged on one side of the conical mold in a matched and walking manner; the extrusion assembly extrudes the output material and drives the output material to the outer side wall of the conical mold in the rotating state to form a forming sleeve; along the generatrix of the outer side of the conical mold, lap joint parts and middle parts between the adjacent lap joint parts are arranged between the adjacent material belts. The extrusion assembly moves in the outer side generatrix direction of the conical mold. The device is reasonable in design, compact in structure and convenient to use.

Description

Technical Field

[0001] The utility model relates to an intelligent production line for forming a conical sleeve. Background Art

[0002] At present, the vertical barrel body includes at least two parts, the middle sleeve and the cone sleeve at the bottom of the middle sleeve. In actual production, due to the different combinations of the two, they need to be made separately and then welded together. If the cone sleeve is made of stainless steel or aluminum alloy, it is easy to wear and corrode. Some are made of integral plastic, PE, PP, etc., but they require a large mold, and one size needs to match a mold, which is extremely wasteful. Centrifugal casting is used, which has the disadvantages of low material density, low strength, and poor durability. Some conical forming sleeves are made by manually splicing the plate after cutting. The conical forming sleeve made by splicing the plate has low strength, the quality of the forming sleeve is difficult to control, and the efficiency is low. When the plate is spliced ​​with the conical forming sleeve, it is very difficult to make the plate thickness exceeding 20mm, and the cone forming sleeve that is too thick cannot be made. The cone forming sleeve spliced ​​by the plate manually has welds at the splicing of the plate, and the appearance of the cone forming sleeve is not very beautiful. Conical forming sleeves with a diameter of less than 3 meters can also be produced by rotational molding, but the rotational molding process of conical forming sleeves with a diameter of more than 3 meters is difficult to achieve. Utility Model Content

[0003] The technical problem to be solved by the utility model is generally to provide an intelligent production line for forming a conical sleeve and an automated manufacturing method.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] In order to realize extrusion molding into a conical sleeve, an intelligent production line for forming a conical sleeve body is provided, which includes a mold frame and a conical mold rotatably arranged on the mold frame; an extrusion component is arranged on one side of the conical mold;

[0006] The extrusion output material of the extrusion assembly is brought to the outer side wall of the rotating conical die to form a forming sleeve;

[0007] Along the outer generatrix of the conical die, adjacent strips have overlapping portions and a middle portion between the adjacent overlapping portions;

[0008] The extrusion assembly moves along the generatrix of the outer side of the conical die.

[0009] As a further improvement of the above technical solution:

[0010] In order to achieve bonding as one body and / or facilitate sizing cutting, a heating part and / or a cutting part are provided on the extrusion assembly;

[0011] In order to ensure reasonable heating, a heating unit, including an electric heating unit and / or a gas heating unit, is used to heat the conical mold and / or the material strip;

[0012] The end of the conical sleeve body has a first extension portion and / or a second extension portion, and a cutting portion for cutting the first extension portion and / or the second extension portion of the formed conical sleeve body.

[0013] In order to achieve adjustment and movement, the extrusion assembly includes a movable guide rail arranged on one side of the conical die along the outer generatrix direction of the conical die; a left-right movable part is arranged on the movable guide rail, and a front-back movable part is arranged on the left-right movable part;

[0014] In order to realize extrusion, an extruder is arranged on the front and rear moving parts;

[0015] In order to form the desired cross section, an extrusion die is provided at the end of the extruder;

[0016] In order to achieve better fitting spiral wrapping, the extrusion direction of the extrusion die is set perpendicular to the outer generatrix of the corresponding conical die;

[0017] In order to ensure that each layer is firmly bonded in thickness and length direction, a pressing wheel portion A and / or a pressing wheel portion B is provided at the front end of the extrusion die.

[0018] In order to achieve rolling of the overlap and the whole, the width of the pressing wheel part A is wider than the width of the pressing wheel part B;

[0019] In order to adjust the length of the material strip, a guide roller portion is provided between the pressing wheel portion B and the extrusion die;

[0020] In order to achieve precise movement and simplified structure, the heating part and / or the cutting part are arranged on the front and rear moving parts.

[0021] In order to achieve uniform bonding and avoid the material strip being torn, piled up or disordered, the extrusion speed v and extrusion volume q of the extruder are matched with the rotation speed w of the conical die.

[0022] In order to realize the required material strip molding, a middle groove is provided on both sides or one side of the extrusion die;

[0023] The material strip extruded from the extrusion die has convex parts on both sides or one side;

[0024] The raised portion corresponds to the middle portion; and both sides of the raised portion correspond to the overlapping portions.

[0025] In order to realize the driving rotation, a rotating main shaft part supporting the conical mold is arranged on the mold frame;

[0026] A side support portion is arranged between the side wall of the conical mold cavity and the rotating main shaft portion.

[0027] In order to ensure that the sleeve is firmly bonded and wrapped, the overlapping portion of the lower layer is arranged on the middle portion of the adjacent upper layer and / or the overlapping portion of the upper layer is arranged on the middle portion of the adjacent lower layer.

[0028] In order to realize automated production, an automated manufacturing method for a conical sleeve body is provided, the method comprising the following molding steps: first, the surface of the conical mold is heated by the flame of a gas heating unit to ensure that the temperature of the outer surface of the conical mold can bond the material strip; then, the plastic strip is molded starting from the small end of the conical mold, and gradually formed into a molding sleeve by stacking from the small end to the large end;

[0029] Among them, the material strip moves a fixed distance toward the large end every time the conical die rotates one circle. The linear speed of the extruded material strip is set to be fixed. As the diameter of the conical die increases, the speed matching adjustment of the conical die becomes slower. After forming to the set height of the forming sleeve, the servo motors of the left and right moving parts are reversed to move the material strip from the large end of the conical die to the small end for continuous forming, and reciprocating forming is performed until the required thickness of the forming sleeve is reached.

[0030] As a further improvement of the above technical solution:

[0031] The method comprises the following steps: first, the raw material is output through an extruder, and a material strip with a thick middle and thin sides is formed under the shaping effect of an extrusion port die; second, the material strip is output to a rotating conical die for continuous spiral wrapping to perform a molding step; third, the molding sleeve is cooled and shaped; after that, when the molding is completed, the waste edges formed at the ends of the first extension part and / or the second extension part of the molding sleeve are cut off by a cutting part, and the residue is left during cutting, and the cutting is performed by manual cutting;

[0032] Wherein, during walking, the electric heating part heats the overlapped part;

[0033] When the material strip is continuously wrapped, the pressing wheel portion A and / or the pressing wheel portion B rolls the overlapping portion and / or the middle portion respectively.

[0034] The utility model can effectively solve the following technical problems, meet the needs of conical molds with larger diameters, and ensure high manufacturing precision; for conical molds with an angle greater than 90 degrees, the material strip is pasted on the surface of the conical mold; the extrusion line speed of the material strip is certain, and the material strip is evenly formed on the surface of the conical mold according to a certain pitch, so that the line speed of the conical mold surface matches the line speed of the extruded material strip; the moving speed of the material strip extrusion component matches the rotation speed of the conical mold; the conical molding sleeve is increased in thickness during production, as well as the stacking method of the material strip.

[0035] The utility model has reasonable design, low cost, strong and durable, safe and reliable, simple operation, time-saving and labor-saving, money-saving, compact structure and convenient use. The inner wall of the molding sleeve formed by the utility model is smooth and beautiful in appearance. The density of the molded molding sleeve is better than that of the rotational molding sleeve. PP, PPH, and PE materials can all be produced using this production line. The size of the molded molding sleeve is not limited by the mold. If a molding sleeve of multiple sizes is required, it can be molded to the required size. There is no need to change the mold. Only one conical mold is needed to produce molding sleeves of all sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the use structure of the electric heating part of the utility model.

[0037] Figure 2 It is a structural schematic diagram of the rotating main shaft portion of the utility model.

[0038] Figure 3 It is a schematic diagram of the local structure of the extrusion component of the utility model.

[0039] Figure 4 It is a structural schematic diagram of the pressing wheel part A of the utility model.

[0040] Figure 5 It is a schematic diagram of the overall use structure of the equipment of the utility model.

[0041] Figure 6 It is a schematic diagram of the conical mold structure of the utility model.

[0042] Figure 7 It is a schematic diagram of the structure of the extrusion assembly of the utility model.

[0043] Figure 8 It is a schematic diagram of the conical mold structure of the utility model.

[0044] Fig. 9 It is a schematic diagram of the use structure of the pressing wheel part A of the utility model.

[0045] Fig.10 It is a schematic diagram of the process structure of the utility model.

[0046] Fig.11 It is a schematic diagram of the circuit structure of the utility model.

[0047] Among them: 1. conical mold; 2. electric heating part; 3. gas heating part; 4. extrusion assembly; 5. front and rear moving part; 6. left and right moving part; 7. pressure wheel part A; 8. rotating main shaft part; 9. mold frame; 10. extrusion port mold; 11. moving guide rail; 12. rack part; 13. cutting part; 14. first extension part; 15. second extension part; 16. molding sleeve; 17. overlapping part; 18. material belt; 19. raised part; 20. extruder; 21. side support part; 22. middle groove part; 23. pressure wheel part B; 24. guide roller part. DETAILED DESCRIPTION

[0048] like Figure 1-11 As shown, the conical sleeve forming intelligent production line and automated manufacturing method of this embodiment, wherein the conical sleeve forming intelligent production line of this embodiment includes a mold frame 9 and a conical mold 1 rotatably arranged on the mold frame 9; an extrusion assembly 4 is provided on one side of the conical mold 1; the utility model adopts a conical mold 1 with a taper to meet the manufacturing of most sizes of sleeves in a series, and compared with the traditional method, it has good versatility and good mold durability.

[0049] The extrusion assembly 4 extrude and output the material belt 18 onto the outer side wall of the rotating conical mold 1 to form a molding sleeve 16; the molding sleeve is a cone sleeve structure wrapped with a continuous belt, and both ends are transparent.

[0050] Along the outer generatrix of the conical mold 1, there are overlapping portions 17 and middle portions between adjacent overlapping portions 17 between adjacent overlapping portions. The overlapping ensures continuous molding of the material strips, and the molding and stacking are achieved through the middle portion.

[0051] The extrusion assembly 4 moves along the outer generatrix direction of the conical die 1, thereby achieving wrapping and simplifying the algorithm.

[0052] A heating part and / or a cutting part 13 is provided on the extrusion assembly 4;

[0053] The heating part, including the electric heating part 2 and / or the gas heating part 3, is used to heat the conical mold 1 and / or the material strip 18; the electric heating part 2 has a stable current, which can ensure the heating and insulation of the conical mold 1 with a metal structure, and its temperature is controllable, while the gas heating part 3 has concentrated firepower, which can achieve a rapid increase in local temperature. Its arrangement of firepower is ingenious, energy-saving and efficient.

[0054] The end of the conical sleeve has a first extension portion 14 and / or a second extension portion 15, and a cutting portion 13, which is used to cut the first extension portion 14 and / or the second extension portion 15 of the formed conical sleeve. The processing reserve ensures the normal size of the sleeve. It can be pre-cut by the cutting portion 13, and then manually separated or demoulded for secondary cutting and trimming.

[0055] As a specific example, Figure 1-9 A plurality of embodiment structures are given, in which the extrusion assembly 4 includes a movable guide rail 11 arranged on one side of the conical die 1 along the outer generatrix direction of the conical die 1; a left-right movable portion 6 is arranged on the movable guide rail 11, and a front-back movable portion 5 is arranged on the left-right movable portion 6; the movable portion adopts conventional technical means, which will not be exemplified one by one.

[0056] An extruder 20 is provided on the front and rear moving part 5; an extrusion port die 10 is provided at the end of the extruder 20; thereby forming a contact strip, which is preferably T-shaped or cross-shaped, to ensure that the overlapping part 17 has the same thickness as the middle part, and the rolling is uniform and the thickness is consistent.

[0057] The extrusion direction of the extrusion port die 10 is perpendicular to the outer generatrix of the corresponding conical die 1 and can be equal to or slightly higher than the die axis.

[0058] A pressing wheel portion A7 and / or a pressing wheel portion B23 are provided at the front end of the extrusion die 10. Figure 4 As shown, the pressing wheel can adjust the height and angle to meet the requirements of different sizes and positions. Of course, it can be an elastic or rigid roller.

[0059] The width of the pressing wheel portion A7 is wider than the width of the pressing wheel portion B23;

[0060] A guide roller portion 24 is provided between the pressing wheel portion B23 and the extrusion port die 10;

[0061] The heating part and / or the cutting part 13 are disposed on the front-rear moving part 5 .

[0062] The extrusion speed v and the extrusion volume q of the extruder 20 are matched with the rotation speed w of the conical die 1, and the adjustment and matching are achieved by controlling the servo motor.

[0063] The middle groove 22 is arranged on both sides or one side of the extrusion die 10; the material strip 18 extruded from the extrusion die 10 has protrusions 19 on both sides or one side; the protrusions 19 correspond to the middle part; the two sides of the protrusions 19 correspond to the overlaps 17. The required material strip cross section is output through the profiling outlet.

[0064] A rack portion 12 is provided in parallel on one side of the moving guide rail 11 for meshing with a gear provided on the left-right moving portion 6 .

[0065] The extrusion assembly 4 realizes the output of the molten material strip, and it can be a conventional structure driven by a screw. The front and rear moving parts 5 and the left and right moving parts 6 are conventionally arranged. A rotating main shaft part 8 supporting the conical mold 1 is arranged on the mold frame 9; the rotation drive is realized through motor servo control.

[0066] A side support portion 21 is provided between the inner cavity side wall of the conical mold 1 and the rotating main shaft portion 8 to reduce weight.

[0067] In order to solve the problem of uneven thickness between the overlapping portion and the non-overlapping middle portion, the utility model improves its cross-section and adds a pressing wheel portion A7 and a pressing wheel portion B23 to realize roller forming of the overlapping portion and the whole, thereby ensuring overall high-strength composite between layers and uniform thickness.

[0068] The rotation drive is achieved by rotating the main shaft part 8, the mold frame 9 achieves support, the extrusion port mold 10 achieves the required cross-section material strip, the movable guide rail 11 achieves guiding support, the rack part 12 is preferred, and it can also be a push rod, the cutting part 13 has a cutting knife, and the first extension part 14 and the second extension part 15 are provided to achieve the extension of the sleeve. At the same time, it is turned back this time to compensate for the error, adjust the walking speed and the rotation speed, so as to ensure that the overlap is staggered each time, so as to achieve the cross-layer superposition of the overlap and non-overlap to avoid damage to the sleeve, and the molding sleeve 16 is formed into the required shape so as to serve as the bottom discharge hole of the cylinder, the material strip 18 is output, the raised part 19 ensures that the material strip has the same thickness, the extruder 20 realizes feeding, the side bracket part 21 realizes support, the middle groove part 22 achieves the requirements, and the guide roller part 24 realizes the lifting and extension of the output material strip.

[0069] The automated manufacturing method of the conical sleeve of the present embodiment includes the following molding steps: first, the surface of the conical mold 1 is heated by the flame of the gas heating unit 3 to ensure that the temperature of the outer surface of the conical mold 1 can adhere to the material strip 18; then, the plastic strip 18 is molded from the small end of the conical mold 1, and is gradually formed into a molding sleeve 16 by stacking from the small end to the large end;

[0070] Among them, the material belt 18 moves a fixed distance toward the large end every time the conical mold 1 rotates one circle. The linear speed of the extruded material belt 18 is set to be fixed. As the diameter of the conical mold 1 increases, the rotation speed of the conical mold 1 is adjusted to be slower. After molding to the set height of the molding sleeve, the servo motors of the left and right moving parts 6 are reversed to move the material belt 18 from the large end of the conical mold 1 to the small end for continuous molding, and reciprocating molding is performed until the required thickness of the molding sleeve 16 is reached.

[0071] The method comprises the following steps: first, the raw material is output through the extruder 20, and under the shaping action of the extrusion port die 10, a material strip 18 with a thick middle and thin sides is formed; second, the material strip 18 is output to the rotating conical die 1 for continuous spiral wrapping to perform the molding step; third, the molding sleeve 16 is cooled and shaped; after that, when the molding is completed, the waste edges formed at the ends of the first extension part 14 and / or the second extension part 15 of the molding sleeve 16 are cut off by the cutting part 13, and the residue is left during cutting, and the cutting is performed by manual cutting;

[0072] Wherein, when walking, the electric heating part 2 heats the overlap part 17;

[0073] When the material strip 18 is continuously wrapped, the pressing wheel portion A7 and / or the pressing wheel portion B23 roll the overlapping portion 17 and / or the middle portion respectively.

[0074] The conical mold 1 is rolled from a steel plate and welded to the core shaft. There are rotary bearings at both ends of the mold frame 9. The conical mold 1 is installed on the rotary bearings at both ends of the mold frame 9, so that the conical mold 1 can rotate. A gear is installed at one end of the shaft of the conical mold 1 to form a rotating main shaft part 8 for driving. The rotating main shaft part 8 has a servo motor, and the rotation speed of the conical mold 1 is automatically controlled by PLC.

[0075] The bottom frame of the extrusion assembly 4 is equipped with wheels and a left-right moving part 6, and at the bottom there are two parallel moving guide rails 11, which are parallel to the hypotenuse of the conical mold 1. A rack part 12 is installed on one side of the guide rail, which is meshed with the gears on the left-right moving part 6. The extrusion assembly 4 can move on the guide rail. The motor of the left-right moving part 6 is a servo motor, and the moving speed of the extrusion assembly is automatically controlled by PLC.

[0076] The front part of the extrusion assembly 4 is equipped with an extrusion die 11 and a pressure wheel part A7. The pressure wheel part A7 uses a cylinder to press the material strip coming out of the extrusion die 10 against the surface of the conical die 1. The working pressure of the cylinder can be adjusted. At the same time, the cylinder also has a certain floating compensation function. Since the conical die 1 has a large diameter and there is a certain ellipticity error during processing, the pressure wheel part A7 can float with the shape to always press the material strip tightly against the surface of the conical die 1.

[0077] During production, the gas heating unit 3 is first used to heat the surface of the conical mold 1 with a flame. The surface of the conical mold 1 must reach a certain temperature to make the material strip stick, otherwise the material strip will fall off and cannot be formed; the function of the electric heating unit 2 is to make the material strip at the overlapped position more firmly bonded. The linear speed of the extrusion assembly extruding the material strip is fixed. The material strip is first formed from the small end of the conical mold 1, and is gradually formed by overlapping from the small end to the large end. Every time the conical mold 1 rotates one circle, the material strip moves a fixed distance toward the large end. A certain distance, since the linear speed of the extruded material strip is fixed, as the diameter of the conical die 1 increases and the circumference increases, the rotation speed of the conical die 1 will become slower and slower. The circumferential linear speed of the material strip position on the conical die 1 must always be consistent with the linear speed of the material strip extrusion. After forming to the set height of the forming sleeve, the servo motors of the left and right moving parts 6 are reversed to move the material strip from the large end of the conical die 1 to the small end for continuous forming. This is the second layer, and the forming is repeated until the required thickness of the forming sleeve is reached.

[0078] After the molding is completed, the waste edges of the molding at both ends of the molding sleeve are cut off with the cutting part 13. When cutting, it is not possible to cut through directly. It is necessary to retain about 5mm of the waste edges before demoulding and then cut them off manually, otherwise the surface of the conical mold 1 will be damaged.

[0079] The rotation of the conical die 1 is controlled by a servo motor. During the production process, the speed of the servo motor is constantly changing. The linear speed of the extrusion die extrusion material belt remains unchanged. The extrusion die moves along the bevel of the conical die. The speed of the servo motor of the extrusion die is also constantly changing. The rotation speed of the conical die and the moving speed of the extrusion die are closed-loop controlled, and the PLC automatically calculates. PP, PPH, and PE materials can all be produced using this production line.

[0080] The present invention is fully described for a clearer disclosure, and the prior art will not be listed one by one.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it; although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some of the technical features therein with equivalents; it is obvious for those skilled in the art to combine multiple technical solutions of the utility model. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. An intelligent production line for forming a conical sleeve, characterized in that: It comprises a mold frame (9) and a conical mold (1) rotatably arranged on the mold frame (9); an extrusion assembly (4) is provided on one side of the conical mold (1); The extrusion assembly (4) extrude the output material strip (18) onto the outer side wall of the rotating conical die (1) to form a molding sleeve (16); Along the outer generatrix of the conical die (1), adjacent material strips (18) have overlapping portions (17) and a middle portion between adjacent overlapping portions (17); The extrusion assembly (4) moves along the outer generatrix direction of the conical die (1); The extrusion assembly (4) comprises a movable guide rail (11) arranged on one side of the conical die (1) along the outer generatrix direction of the conical die (1); a left-right movable portion (6) is arranged on the movable guide rail (11), and a front-back movable portion (5) is arranged on the left-right movable portion (6); An extruder (20) is provided on the front-rear moving part (5); An extrusion port die (10) is provided at the end of the extruder (20); The extrusion direction of the extrusion die (10) is arranged perpendicular to the outer generatrix of the corresponding conical die (1); A pressing wheel portion A (7) and / or a pressing wheel portion B (23) is provided at the front end of the extrusion die (10); A middle groove portion (22) is provided on both sides or on one side of the extrusion outlet die (10); The material strip (18) extruded from the extrusion die (10) has protrusions (19) on both sides or on one side; The raised portion (19) corresponds to the middle portion; both sides of the raised portion (19) correspond to the overlapping portions (17); The overlapping portion (17) of the lower layer is arranged on the middle portion of the adjacent upper layer and / or the overlapping portion (17) of the upper layer is arranged on the middle portion of the adjacent lower layer.

2. The conical sleeve forming intelligent production line according to claim 1 is characterized in that: A heating portion and / or a cutting portion (13) is provided on the extrusion assembly (4); The heating part comprises an electric heating part (2) and / or a gas heating part (3) for heating the conical mold (1) and / or the material strip (18).

3. The conical sleeve forming intelligent production line according to claim 1 or 2, characterized in that: The extrusion port die (10) is used for extrusion molding of a material strip (18) in a T-shape or a cross shape.

4. The conical sleeve forming intelligent production line according to claim 3 is characterized in that: The pressing wheel portion A (7) is wider than the pressing wheel portion B (23); A guide roller portion (24) is provided between the pressing wheel portion B (23) and the extrusion port die (10); The heating part and / or the cutting part (13) are arranged on the front-rear moving part (5).

5. The conical sleeve forming intelligent production line according to claim 3 is characterized in that: The extrusion speed v and extrusion volume q of the extruder (20) are matched with the rotation speed w of the conical die (1).

6. The conical sleeve forming intelligent production line according to claim 3 is characterized in that: The overlapping parts (17) are staggered, and the overlapping parts (17) and the non-overlapping parts are cross-layered.

7. The conical sleeve forming intelligent production line according to claim 3 is characterized in that: A rack portion (12) is arranged in parallel on one side of the movable guide rail (11) and is used to mesh with a gear arranged on the left and right movable portions (6).

8. The conical sleeve forming intelligent production line according to claim 3 is characterized in that: A rotating main shaft portion (8) supporting the conical mold (1) is arranged on the mold frame (9); A side support portion (21) is provided between the inner cavity side wall of the conical mold (1) and the rotating main shaft portion (8).

9. The conical sleeve forming intelligent production line according to claim 3 is characterized in that: The end of the conical sleeve body has a first extension portion (14) and / or a second extension portion (15), and a cutting portion (13) for cutting the first extension portion (14) and / or the second extension portion (15) of the formed conical sleeve body.

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