PVC pipe extrusion molding die head rack

Abstract

The utility model relates to the technical field of PVC (Polyvinyl Chloride) pipe production, and discloses a PVC pipe extrusion molding die head rack which comprises a die head support frame, a support bottom plate is arranged below the die head support frame, a mounting table is arranged above the die head support frame, a damping mechanism is arranged in the mounting table, and the damping mechanism is connected with the die head support frame. A lifting mechanism is arranged between the die head supporting frame and the supporting bottom plate, and a clamping mechanism is arranged above the mounting table. According to the PVC pipe extrusion forming die head rack, the damping mechanism is arranged, so that when the rack is used for supporting a forming machine die head, impact force borne by the rack in the vertical direction can be buffered through the design of a damper and a first spring, and impact force borne by the rack in the horizontal direction can be buffered through the design of a second spring; shaking and abrasion to the forming die head due to the influence of external force factors in the PVC pipe extrusion operation are reduced, and it is guaranteed that the PVC pipe extrusion operation is conducted stably.

Description

TECHNICAL FIELD

[0001] The utility model relates to PVC tubular product production technical field, concretely to a PVC tubular product extrusion forming die head frame. BACKGROUND

[0002] PVC tubular product is a kind of plastic tubular product extruded by polyvinyl chloride resin and stabilizer and lubricant etc. after cooperation with hot-pressing method, in the production process of PVC tubular product, extruder is needed to extrude molten PVC plastic, and finished product PVC tubular product is processed by forming die head.

[0003] The prior art authorization announcement No. CN213891186U patent document provides a kind of improved extrusion forming die head frame for producing PVC tubular product, the improved extrusion forming die head frame for producing PVC tubular product, by the cooperation of bottom plate, base, die head, transverse plate and lifting device, first groove wheel drives second gear to rotate, second gear drives first gear to rotate, in turn makes inclined rod moves up and down, transverse plate drives base to move up and down, in turn realizes the support to different height die head, wide application range, high practicality, by the cooperation of bottom plate, base, die head, transverse plate and clamping device, make threaded rod drive long block to move downward, long block drives short block to move downward, vertical rod drives clamping plate to move inward, in turn realizes the clamping fixation of die head, avoid die head to vibrate or shift when working, in turn influence the production of tubular product.

[0004] But the existing PVC tubular product extrusion forming die head frame is not convenient to buffer the impact force received when using, in the extrusion operation of forming machine to PVC tubular product, under the influence of equipment force and external factors, it is easy to bring certain sway to die head frame, if not buffering treatment, it will directly influence the stability and precision of die head extrusion operation, reduce the production quality of PVC tubular product. UTILITY MODEL CONTENT

[0005] (One) technical problem solved

[0006] The utility model aims at providing a kind of PVC tubular product extrusion forming die head frame to solve the problem that the existing PVC tubular product extrusion forming die head frame is not convenient to buffer the impact force received when using in the above background art.

[0007] (Two) technical scheme

[0008] To achieve the above object, the utility model provides the following technical scheme: A PVC pipe extrusion forming die head rack, including die head support frame, the lower portion of die head support frame is provided with support base plate, the upper portion of die head support frame is provided with installation platform, the inside of installation platform is provided with damping mechanism, the between die head support frame and support base plate is provided with lifting mechanism, the upper portion of installation platform is provided with clamping mechanism,

[0009] The damping mechanism includes a damper, the damper is fixedly installed at the bottom end inside the die head support frame, a linkage frame is arranged at the middle of the bottom end inside the die head support frame, a first spring is arranged outside the linkage frame, an inclined rod is arranged between the linkage frame and the installation platform, and a second spring is arranged above the installation platform.

[0010] Preferably, the lifting mechanism includes a hydraulic cylinder, the hydraulic cylinder is fixedly installed at the middle of the upper surface of the support base plate, and an adjusting rod is fixedly connected to the transmission end of the hydraulic cylinder away from the support base plate.

[0011] Preferably, one end of the adjusting rod away from the hydraulic cylinder is fixedly connected to the die head support frame, a round rod is fixedly connected to the bottom end of the die head support frame, a support ring is fixedly arranged on the outer surface of the hydraulic cylinder, and the round rod is slidingly connected to the support ring.

[0012] Preferably, support seats are fixedly installed on both sides of the hydraulic cylinder on the upper surface of the support base plate, and the support seats correspond to the round rod.

[0013] Preferably, the clamping mechanism includes a fixed frame, the fixed frame is fixedly installed on the upper surface of the installation platform, a motor is fixedly installed on the inner side of the fixed frame, a double-threaded rod is fixedly connected to the transmission end of the motor, and one end of the double-threaded rod away from the motor is connected to the fixed frame through a bearing.

[0014] Preferably, an internally-threaded connecting plate is threadedly connected to the outer surface of the double-threaded rod, a round block is fixedly connected to the upper surface of the internally-threaded connecting plate, a sliding rod is fixedly connected above the motor on the inner side of the fixed frame, and the round block is slidingly connected to the sliding rod.

[0015] Preferably, a clamping plate is fixedly connected to the end away from the internally-threaded connecting plate, the second spring is located on the inner side of the clamping plate, and a buffer plate is fixedly connected to the side of the second spring away from the clamping plate.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The PVC pipe extrusion forming die frame, through the setting damping mechanism, make in the use this frame carries out the support operation of the forming machine die, damper and the design of the first spring can buffer the vertical direction impact force that it receives, the design of the second spring can buffer the horizontal direction impact force that it receives, to reduce the shaking and wear of the forming die caused by external factors in the PVC pipe extrusion operation, guarantee the stable operation of the PVC pipe extrusion operation;

[0018] 2. The PVC pipe extrusion forming die frame, through the setting lifting mechanism and clamping mechanism, so that the frame in use, the staff can be adjusted by operation, the position of the two sets of clamping plates in the vertical direction and the horizontal direction, so that the support frame can be fully fixed to the extruder die, cooperate with the design of the buffer plate to avoid the contact surface wear during the clamping process of the extruder die, improve the practicability and protectiveness of the die frame. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is a three-dimensional structure schematic diagram of the damping mechanism of the utility model;

[0021] Figure 3 It is a three-dimensional structure schematic diagram of the lifting mechanism of the utility model;

[0022] Figure 4 It is a three-dimensional structure schematic diagram of the clamping mechanism of the utility model.

[0023] In the drawing: 1, die support frame; 2, support base plate; 3, mounting table; 4, damping mechanism; 401, damper; 402, linkage frame; 403, first spring; 404, inclined rod; 405, second spring; 5, lifting mechanism; 501, hydraulic cylinder; 502, adjusting rod; 503, round rod; 504, support ring; 505, support seat; 6, clamping mechanism; 601, fixed frame; 602, motor; 603, double-sided threaded rod; 604, internally threaded connecting plate; 605, round block; 606, sliding rod; 607, clamping plate; 608, buffer plate. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] Please refer to Figure 1 Figure 4 The utility model provides a technical scheme: a PVC pipe extrusion forming die head frame, including die head support frame 1, the lower portion of die head support frame 1 is provided with support base plate 2, the upper portion of die head support frame 1 is provided with installation table 3, the inside of installation table 3 is provided with damping mechanism 4, the between die head support frame 1 and support base plate 2 is provided with lifting mechanism 5, the upper portion of installation table 3 is provided with clamping mechanism 6,

[0026] Damping mechanism 4 includes damper 401, damper 401 is fixedly installed in the bottom end inside die head support frame 1, the middle portion of bottom end inside die head support frame 1 is provided with linkage frame 402, the outside of linkage frame 402 is provided with first spring 403, linkage frame 402 and installation table 3 are provided with inclined rod 404 between, the upper portion of installation table 3 is provided with second spring 405, in the support process of die head support frame 1 to extruder die head, is influenced by equipment force and external force factor, will bring certain sway to it, damper 401 is compressed under stress makes the angle change of inclined rod 404 between installation table 3 and linkage frame 402, extrudes first spring 403, damper 401 and first spring 403 utilize the energy absorption characteristics to buffer the vertical direction impact force that it receives, second spring 405 utilizes the elastic potential energy to buffer the horizontal direction impact force that it receives, reduces the sway and abrasion that the forming machine die head brings, guarantees the stability and precision of PVC pipe extrusion operation.

[0027] ​The lifting mechanism 5 comprises a hydraulic cylinder 501 fixedly installed on the middle of the upper surface of the support base plate 2, the transmission end of the hydraulic cylinder 501 away from the support base plate 2 is fixedly connected with an adjusting rod 502, one end of the adjusting rod 502 away from the hydraulic cylinder 501 is fixedly connected with the die support frame 1, a round rod 503 is fixedly connected at the bottom end of the die support frame 1, a support ring sleeve 504 is fixedly arranged on the outer surface of the hydraulic cylinder 501, the round rod 503 is in sliding connection with the support ring sleeve 504, support seats 505 are fixedly installed on the upper surface of the support base plate 2 at both sides of the hydraulic cylinder 501, the support seats 505 correspond to the round rod 503, the clamping mechanism 6 comprises a fixed frame 601 fixedly installed on the upper surface of the mounting table 3, a motor 602 is fixedly installed on the inner side of the fixed frame 601, a double-sided threaded rod 603 is fixedly connected at the transmission end of the motor 602, an internally threaded connecting plate 604 is threadedly connected on the outer surface of the double-sided threaded rod 603, a circular block 605 is fixedly connected on the upper surface of the internally threaded connecting plate 604, a sliding rod 606 is fixedly connected above the motor 602 on the inner side of the fixed frame 601, the circular block 605 is in sliding connection with the sliding rod 606, a clamping plate 607 is fixedly connected at the end of the internally threaded connecting plate 604 away from the motor 602, a second spring 405 is located on the inner side of the clamping plate 607, a buffer plate 608 is fixedly connected on the side of the second spring 405 away from the clamping plate 607, when the die support frame 1 is used for the extruder die support operation of the PVC pipe production, the staff moves it to the place where it needs to be used, and the extruder die passes through the two sets of fixed frames 601, the staff pushes the mounting table 3 by operating the hydraulic cylinder 501, at the same time, the die support frame 1 drives the round rod 503 to slide inside the support ring sleeve 504, ensuring the stability of the die support frame 1 during the adjustment process, until the two sets of clamping plates 607 fully correspond to the extruder die, the motor 602 works to drive the two sets of internally threaded connecting plates 604 to move oppositely on the double-sided threaded rod 603, the internally threaded connecting plate 604 drives the circular block 605 to slide on the sliding rod 606, thereby driving the two sets of clamping plates 607 to move to the middle, so that the buffer plate 608 fully contacts with the outer wall of the extruder die, realizing the positioning and clamping of the extruder die, and the extrusion operation of the PVC pipe can be carried out.

[0028] Working principle: when the die support frame 1 is used for the die support operation of the extruder for PVC pipe production, the staff moves it to the place where it is needed, and makes the extruder die pass through the two groups of fixed frames 601, the staff pushes the mounting table 3 by operating the hydraulic cylinder 501, at the same time, the die support frame 1 drives the round rod 503 to slide in the support ring sleeve 504, so as to guarantee the stability of the die support frame 1 during the adjustment process, until the two groups of clamping plates 607 fully correspond to the extruder die, the motor 602 drives the two groups of inner threaded connecting plates 604 to move oppositely on the double-sided threaded rod 603, the inner threaded connecting plate 604 drives the round block 605 to slide on the sliding rod 606, so as to drive the two groups of clamping plates 607 to move to the middle, so that the buffer plate 608 fully contacts with the outer wall of the extruder die, the positioning and clamping of the extruder die are realized, and the extrusion operation of the PVC pipe can be carried out, during the support process of the die support frame 1 to the extruder die, due to the influence of the equipment force and external force factors, a certain shaking will be caused to the die support frame 1, the damper 401 is compressed under stress, so that the angle of the inclined rod 404 between the mounting table 3 and the linkage frame 402 changes, the first spring 403 is extruded, the damper 401 and the first spring 403 utilize the energy absorption characteristics to buffer the vertical impact force received, the second spring 405 utilizes the elastic potential energy to buffer the horizontal impact force received, the shaking and abrasion caused to the die of the forming machine are reduced, and the stability and precision of the PVC pipe extrusion operation are guaranteed.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical scheme of the present application, and is not a limitation on the protection scope of the present application. Simple modifications or equivalent replacements of the technical scheme of the present application made by ordinary skilled in the art do not deviate from the essence and scope of the technical scheme of the present application.

Claims

1. A machine frame for PVC pipe extrusion molding die, comprising a die support frame (1), characterized in that: The lower part of the die support frame (1) is provided with a support bottom plate (2), the upper part of the die support frame (1) is provided with a mounting table (3), the inside of the mounting table (3) is provided with a damping mechanism (4), the die support frame (1) and the support bottom plate (2) are provided with a lifting mechanism (5), the upper part of the mounting table (3) is provided with a clamping mechanism (6); The damping mechanism (4) comprises a damper (401), the damper (401) is fixedly installed at the bottom end in the die support frame (1), the middle part of the bottom end in the die support frame (1) is provided with a linkage frame (402), the outer side of the linkage frame (402) is provided with a first spring (403), the linkage frame (402) and the mounting table (3) are provided with a slope rod (404), the upper part of the mounting table (3) is provided with a second spring (405).

2. The PVC pipe extrusion molding die set of claim 1, wherein: The lifting mechanism (5) comprises a hydraulic cylinder (501), the hydraulic cylinder (501) is fixedly installed on the middle part of the upper surface of the support bottom plate (2), the transmission end of the hydraulic cylinder (501) away from the support bottom plate (2) is fixedly connected with an adjusting rod (502).

3. The PVC pipe extrusion molding die set of claim 2, wherein: The one end of the adjusting rod (502) away from the hydraulic cylinder (501) is fixedly connected with the die support frame (1), the bottom end of the die support frame (1) is fixedly connected with a round rod (503), the outer surface of the hydraulic cylinder (501) is fixedly provided with a support ring sleeve (504), and the round rod (503) is slidably connected with the support ring sleeve (504).

4. The PVC pipe extrusion molding die set of claim 3, wherein: Support seats (505) are fixedly installed on the upper surface of the support bottom plate (2) on both sides of the hydraulic cylinder (501), and the support seats (505) correspond to the round rod (503).

5. The PVC pipe extrusion molding die set of claim 4, wherein: The clamping mechanism (6) comprises a fixed frame (601), the fixed frame (601) is fixedly installed on the upper surface of the mounting table (3), a motor (602) is fixedly installed on the inner side of the fixed frame (601), a double-sided threaded rod (603) is fixedly connected with the transmission end of the motor (602), and the one end of the double-sided threaded rod (603) away from the motor (602) is connected with the fixed frame (601) through a bearing.

6. The PVC pipe extrusion molding die set of claim 5, wherein: An internally threaded connecting plate (604) is threadedly connected to the outer surface of the double-sided threaded rod (603), a circular block (605) is fixedly connected to the upper surface of the internally threaded connecting plate (604), a sliding rod (606) is fixedly connected to the upper part of the motor (602) on the inner side of the fixed frame (601), and the circular block (605) is slidably connected with the sliding rod (606).

7. The PVC pipe extrusion molding die set of claim 6, wherein: A clamping plate (607) is fixedly connected to the end away from the internally threaded connecting plate (604), the second spring (405) is located on the inner side of the clamping plate (607), and a buffer plate (608) is fixedly connected to the side of the second spring (405) away from the clamping plate (607).

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