Blow molding machine die head frame and blow molding machine

Abstract

The utility model provides a die head frame of a blow molding machine. The die head frame comprises a body and a shunting mechanism, the body comprises a plurality of feed ports and a plurality of discharge ports; the flow dividing mechanism is arranged in the body and located between the feeding port and the discharging port. The flow dividing mechanism comprises a plurality of flow channels arranged at intervals, each flow channel comprises a main flow channel, one end of each main flow channel is arranged close to the feeding port for feeding, a plurality of branches are led out of the other end of each main flow channel, and the tail ends of the branches correspondingly stretch into the discharging ports respectively for discharging in groups. Compared with the prior art, the flow dividing mechanism of the die head frame of the blow molding machine, provided by the utility model, is provided with the flow channels which are arranged in a layered manner, and one end of each flow channel is provided with a plurality of branches, so that materials can be layered and divided into a plurality of groups with the same components and then flow out of the discharge hole, and a plurality of layers of same products can be produced through one-time processing in an auxiliary manner; and the production efficiency is improved. In addition, the utility model further provides a blow molding machine.

Description

Technical Field

[0001] The utility model relates to the field of plastic material processing, in particular to a blow molding machine die head frame and a blow molding machine. Background Art

[0002] Blow molding machine is a plastic processing machine. After the liquid plastic is sprayed out, the wind force blown out by the machine is used to blow the plastic body to a certain shape of the mold cavity to make a product. This machine is called a blow molding machine. A simple blow molding machine includes an extrusion screw, a die head, and a die head frame arranged between the extrusion screw and the die head. The plastic to be processed is sent into the extrusion screw for extrusion, and then sent into the die head through the die head frame to form an inner hollow blank, and finally blow molded in the blowing molding station. In order to achieve the special performance of plastic products, plastics are generally divided into multiple layers for blowing. Therefore, the die head frame is often designed as a multi-layer structure to facilitate the layered extrusion of plastics. At present, the common die head frames have a one-layer structure, a two-layer structure, and a three-layer structure.

[0003] As for the currently common blow molding machines, most of the multi-layer structures are one-in-one, that is, only one die head is connected to a die head frame, so that one product is blown out through one blow port, and the production efficiency is low.

[0004] Therefore, it is necessary to design a blow molding machine die frame and a blow molding machine to solve the above problems. Utility Model Content

[0005] One purpose of the utility model is to provide a blow molding machine die head frame, which can assist the blow molding machine to blow out multiple and multi-layer identical products at one time, and has high production efficiency.

[0006] Another object of the utility model is to provide a blow molding machine, which can blow out multiple and multi-layered identical products at one time and has high production efficiency.

[0007] In order to achieve one of the above-mentioned purposes, the blow molding machine die head frame provided by the utility model includes a main body and a diverter mechanism; the main body includes a plurality of feed ports and a plurality of discharge ports; the diverter mechanism is arranged in the main body and is located between the feed port and the discharge port; the diverter mechanism includes a plurality of flow channels arranged at intervals, the flow channels include a main flow channel, one end of the main flow channel is arranged close to the feed port for feeding, and the other end of the main flow channel has a plurality of branches, and the ends of the branches respectively extend into the discharge ports for grouped discharge.

[0008] Compared with the prior art, the diversion mechanism of the blow molding machine die frame provided by the utility model has a plurality of flow channels arranged at intervals, and the flow channels include a main channel, one end of the main channel is arranged close to the feed port for feeding, and the other end of the main channel leads to a plurality of branches, and the ends of each of the branches are respectively aligned with a plurality of the discharge ports for grouped discharge. Therefore, after the material enters the main channels of the diversion mechanism through the feed port on the main body, it will be gathered in groups at the discharge ports under the guidance of the branches, so that the material can be layered and then divided into multiple groups with the same components to flow out from the discharge port, thereby assisting the blow molding machine to produce multiple identical products at one time, with high production efficiency.

[0009] Preferably, the flow splitting mechanism is composed of a plurality of flow splitting screws, each of which is arranged at intervals, and each of which is hollow so as to form the flow channel in the flow splitting screw. Such an arrangement makes it easier to process the flow channel, and at the same time, the sealing of the flow channel does not need to rely on the sealing of the body, so the sealing of the flow channel will be better.

[0010] Preferably, the main channels are arranged in parallel and in layers, so that the main channels can be better aligned with the feed ports, thereby improving the reliability of use.

[0011] Preferably, the main body is further provided with a plurality of supporting members, one end of which is connected to the end of the branch, and the other end is connected to the main body to support the end of the branch. Such a configuration can keep the end of the branch stable to improve the reliability of use.

[0012] Preferably, the projections of the ends of the different branches located at the same outlet are arranged at intervals in the outlet. Such an arrangement prevents interference between the branches, thereby reducing processing defects of the final processed product.

[0013] Preferably, the branches include a plurality of first branches and a plurality of second branches, the plurality of first branches are led out from one end of the main channel away from the feed port, the second branches are led out from the end of each first branch, and the ends of the second branches extend into the discharge ports respectively. Such a configuration can avoid leading out too many branches in one place of the main channel, thereby reducing the pressure on the main channel leading out of the branch and improving the service life.

[0014] Preferably, the body comprises an upper body, a lower body and a plurality of intermediate bodies disposed between the upper body and the lower body; the flow channel is disposed between the upper body and an adjacent intermediate body; the flow channel is disposed between the lower body and an adjacent intermediate body; and the flow channel is also disposed between any two adjacent intermediate bodies. Such an arrangement facilitates the stratification and positioning of each flow channel.

[0015] Preferably, the blow molding machine die head frame further comprises a plurality of positioning pins, which penetrate through all the intermediate bodies and have two ends respectively connected to the upper body and the lower body, so as to position the upper body, the lower body and a plurality of the intermediate bodies.

[0016] In order to achieve the other purpose mentioned above, the blow molding machine provided by the utility model includes a die head, a plurality of extrusion screws and the aforementioned blow molding machine die head frame, wherein the blow molding machine die head frame is arranged between the plurality of extrusion screws and the die head, and the discharge end of the extrusion screw is connected to the feed port of the blow molding machine die head frame, and the discharge port of the blow molding machine die head frame is connected to the feed end of the die head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the blow molding machine provided by the utility model.

[0018] Figure 2 It is a stereoscopic diagram of a blow molding machine die head frame provided by the utility model from one viewing angle.

[0019] Figure 3 It is a stereoscopic diagram of the die head frame of the blow molding machine provided by the utility model from another perspective.

[0020] Figure 4 It is a six-sided development view of the die head frame of the blow molding machine provided by the utility model.

[0021] Figure 5 It is a top view of the upper body of the blow molding machine die head frame provided by the utility model when it is matched with the diverter screw.

[0022] Figure 6 The utility model is a top view of the cooperation between the middle body adjacent to the upper body and the diverter screw of the die head frame of the blow molding machine provided by the utility model.

[0023] Figure 7 The utility model is a bottom view of the cooperation between the middle body adjacent to the upper body and the diverter screw of the die head frame of the blow molding machine provided by the utility model.

[0024] Figure 8 The utility model is a top view of a middle body located between two middle bodies of a blow molding machine die head frame and a split screw rod.

[0025] Fig. 9 is along Figure 8 The cross-sectional view obtained by cutting along the AA direction.

[0026] Fig.10 The utility model is a top view of the cooperation between the middle body adjacent to the lower body and the diverter screw of the die head frame of the blow molding machine provided by the utility model.

[0027] Fig.11 It is a bottom view of the lower body of the blow molding machine die head frame provided by the utility model when it is matched with the diverter screw.

[0028] Fig.12 is along Fig.11 The cross-sectional view obtained by cutting along the BB direction. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present application in combination with specific implementation examples and drawings, and an explanation of the technical solutions of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0030] See also Figures 1 to 5The blow molding machine 100 provided by the utility model includes a blow molding machine die frame 1, a die 2 and a plurality of extrusion screws 3, wherein the blow molding machine die frame 1 is arranged between the die 2 and the plurality of extrusion screws 3. The blow molding machine die frame 1 includes a body 11 and a diverter mechanism 12; the body 11 includes a plurality of feed ports 111 and a plurality of discharge ports 112; the diverter mechanism 12 is arranged in the body 11 and is located between the feed port 111 and the discharge port 112; the diverter mechanism 12 includes a plurality of flow channels 121 arranged at intervals, the flow channel 121 includes a main flow channel 122, one end of the main flow channel 122 is arranged near the feed port 111 for feeding, and the other end of the main flow channel 121 leads to a plurality of branches 123, and the ends of each of the branches 123 respectively and vertically extend into the plurality of discharge ports 112 for grouped discharge. In order to enhance the rigidity of the ends of the branches 123 to improve the reliability of use and thus ensure product quality, the body 11 is further provided with a plurality of support members 110 to support the ends of the branches 123. The discharge end of the extrusion screw 3 is connected to the feed port 111 of the blow molding machine die frame 1, and the discharge port 112 of the blow molding machine die frame 1 is connected to the feed end of the die head 2. In this embodiment, in order to better align the main channels 122 with the feed ports 111 to improve the reliability of use, the main channels 122 are arranged in parallel and in layers. More specifically, the branches 123 include a plurality of first branches 1231 and a plurality of second branches 1232, and the plurality of first branches 1231 are led out from one end of the main channel 122 away from the feed port 111, and the end of each of the first branches 1231 leads out a second branch 1232, and the ends of the second branches 1232 extend into the discharge ports 112 respectively. The support member 110 is a support rod, and one end of the support member 110 is fixedly connected to the main body 11 by a screw, and the other end is fixedly connected to the end of the second branch 1232. Such a setting can avoid leading out too many forks in one place of the main channel 122, thereby reducing the pressure on the forked part of the main channel 122 and improving the service life. In this embodiment, the feed port 111 and the discharge port 112 are respectively arranged at two opposite ends of the main body 11. Such a setting allows sufficient spacing between the feed port 111 and the discharge port 112 so that the former two have sufficient avoidance space when they are respectively connected to other components to prevent interference between components. In addition, a plurality of weight-reducing holes 113 are also provided on the surface of the main body 11 to greatly reduce the weight of the main body 11, and this can also save some materials.

[0031] For further information, see Figures 1 to 3In this embodiment, the blow molding machine 100 is a five-layer blow molding machine with one outlet and four outlets, and the number of the outlets 122 is four. The body 11 includes an upper body 114, a lower body 115, and intermediate bodies 116A, 116B, and 116C disposed between the upper body 114 and the lower body 115; two flow channels 121 are disposed between the upper body 115 and the intermediate body 116A; one flow channel 121 is disposed between the lower body 115 and the intermediate body 116C; one flow channel 121 is disposed between the intermediate body 116A and the intermediate body 116B; and one flow channel 121 is also disposed between the intermediate body 116B and the intermediate body 116C. Therefore, five flow channels 121 are disposed in the body 11. Such a configuration facilitates the layering and positioning of each flow channel 121. Specifically, the blow molding machine mold head frame 100 also includes a plurality of positioning pins (not shown in the accompanying drawings), which simultaneously penetrate the intermediate bodies 116A, 116B and 116C, and whose two ends are respectively connected to the upper body 114 and the lower body 115, thereby assembling and positioning the upper body 114, the lower body 115 and the intermediate bodies 116A, 116B and 116C.

[0032] For further information, see Figures 2 to 12, since five flow channels 121 are provided in the body 11 in this embodiment, the diverter mechanism 12 provided in the body 11 needs to have diverter screws A1, A2, A3, A4 and A5 to form the five flow channels 121. Accordingly, the body 11 includes five feed ports 111. The diverter screws A1, A2, A3, A4 and A5 are arranged in layers at intervals, and the diverter screws A1, A2, A3, A4 and A5 are all hollow structures so that the flow channels 121 are formed inside each. It can be understood that the outer contour of the diverter screws A1, A2, A3, A4 and A5 should be consistent with the shape of the flow channel 121, and the unbranched end of the diverter screws A1, A2, A3, A4 and A5 is connected to the feed port 111, and the bifurcated end is arranged near the discharge port 112. Such a setting makes it unnecessary for the main body 11 to precisely set the flow channel 121 inside like designing a mold, and only the corresponding receiving groove needs to be set. Therefore, the processing of the flow channel 121 is easier and saves costs. At the same time, the sealing of the flow channel 121 does not need to rely on the sealing of the main body 11, so the sealing of the flow channel 121 will also be better. Specifically, the diverter screw A1 and the diverter screw A2 are both arranged between the upper body 114 and the intermediate body 116A, and the feed port 111 matched with the diverter screw A1 and the diverter screw A2 is arranged at both ends of the rear side of the main body 11. The diverter screw A3 is arranged between the two adjacent intermediate bodies 116A and 116B close to the upper body 114, and the feed port 111 matched with the diverter screw A3 is arranged in the middle position of the rear side of the main body 11. The diverter screw A4 is disposed between the two adjacent intermediate bodies 116B and 116C near the lower body 115, and the feed port 111 matched with the diverter screw A4 is disposed on the right side of the body 11 at one end away from the discharge port 112. The diverter screw A5 is disposed between the lower body 115 and the intermediate body 116C, and the feed port 111 matched with the diverter screw A5 is disposed on the left side of the body 11 at one end away from the discharge port 112, and the feed port 111 is substantially colinear with the feed port 111 on the right side. In addition, the branch 123 of the diverter screw A1 is arranged vertically relative to the branches 123 of the other diverter screws, so as to facilitate the arrangement of the ends of the branches 123 of the diverter screw A1 so as to make the size of the discharge port 112 reasonable. Meanwhile, positioning parts 117 are provided on the upper body 114 , the lower body 115 , and the intermediate bodies 116A, 116B, and 116C, and the positioning pins penetrate through all the positioning parts 117 for positioning.Specifically, the positioning portion 117 is a positioning hole, and the positioning holes are arranged on both sides of each second branch 1232 (except the second branch 1232 of the diverter screw A1), so that the positioning pin can also limit each second branch 1232. In this embodiment, considering the cost, the support member 110 is not arranged at the end of all the second branches 1232, but the support member 100 is only arranged at the end of the diverter screw A1 and the diverter screw A3.

[0033] For further information, see Fig.11 The projections of the ends of the different branches 123 located at the same outlet 112 are arranged at intervals in the outlet 112. Such an arrangement prevents interference between the branches 123, thereby reducing processing defects of the final processed product.

[0034] The following is a description of the working process of the blow molding machine 100 provided by the utility model. First, the material enters the diverter mechanism 12 in the body 11 of the blow molding machine die frame 1 through the extrusion screw 3, and then the material flows in the diverter screws A1, A2, A3, A4 and A5 of the diverter mechanism 12 respectively. Since any of the diverter screws A1, A2, A3, A4 and A5 has four second branches 1232, the material will flow into the four discharge ports 112 corresponding to the end of the second branch 1232 and gather, so that five layers of material are gathered in each of the discharge ports 112, and then the five-layered materials are divided into four groups and flow into the die head 2 from the four discharge ports 112. Finally, the material is extruded in four groups by the die head 2, so that four five-layer extruded products are produced at one time.

[0035] Compared with the prior art, the diverter mechanism 12 of the blow molding machine die frame 1 of the blow molding machine 100 provided by the utility model has a plurality of flow channels 121 arranged at intervals, and the flow channel 121 includes a main flow channel 122, one end of the main flow channel 122 is arranged close to the feed port 111 for feeding, and a plurality of branches 123 are led out from the other end of the main flow channel 122, and the ends of each of the branches 123 are respectively aligned with a plurality of the discharge ports 112 for group discharge. Therefore, when the material enters the main flow channels 122 of the diverter mechanism 12 through the feed port 111 on the main body 11, it will be grouped and gathered at the discharge ports 112 under the guidance of the branches 123, so that the material can be layered and then divided into multiple groups with the same components and flow into the die head 2 from the discharge port 112, thereby producing multiple and multiple layers of the same products at one time, with high production efficiency.

[0036] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A blow molding machine die frame, characterized in that: It comprises a main body and a diverter mechanism; the main body comprises a plurality of feed ports and a plurality of discharge ports; the diverter mechanism is arranged in the main body and is located between the feed port and the discharge port; the diverter mechanism comprises a plurality of flow channels arranged at intervals, the flow channels comprising a main flow channel, one end of the main flow channel is arranged close to the feed port for feeding, and the other end of the main flow channel leads to a plurality of branches, and the ends of each of the branches extend into a plurality of the discharge ports respectively for grouped discharge.

2. The blow molding machine die frame according to claim 1, characterized in that: The flow dividing mechanism is composed of a plurality of flow dividing screws, each of which is arranged at intervals, and each of which is a hollow structure so that the flow channel is formed in the flow dividing screw.

3. The blow molding machine die frame according to claim 1, characterized in that: The main channels are arranged in parallel and in layers.

4. The blow molding machine die frame according to claim 1, characterized in that: A plurality of supporting members are also arranged in the main body, one end of each supporting member is connected to the end of each branch, and the other end of each supporting member is connected to the main body to support the end of each branch.

5. The blow molding machine die frame according to claim 1, characterized in that: The projections of the ends of different branches located at the same discharge port in the discharge port are arranged at intervals.

6. The blow molding machine die frame according to claim 1, characterized in that: The branches include a plurality of first branches and a plurality of second branches. The plurality of first branches are led out from one end of the main channel away from the feed port. The end of each first branch leads out to a second branch. The ends of the second branches extend into the discharge ports respectively.

7. The blow molding machine die frame according to claim 1, characterized in that: The main body includes an upper body, a lower body and a plurality of intermediate bodies arranged between the upper body and the lower body; the flow channel is arranged between the upper body and an adjacent intermediate body; the flow channel is arranged between the lower body and an adjacent intermediate body; the flow channel is also arranged between any two adjacent intermediate bodies.

8. The blow molding machine die frame according to claim 7, characterized in that: The blow molding machine die head frame also includes a plurality of positioning pins, which penetrate all the intermediate bodies and have two ends respectively connected to the upper body and the lower body, so as to position the upper body, the lower body and a plurality of the intermediate bodies.

9. A blow molding machine, characterized in that: It comprises a die head, a plurality of extrusion screws and a die head frame of a blow molding machine as claimed in any one of claims 1 to 8, wherein the die head frame of the blow molding machine is arranged between the plurality of extrusion screws and the die head, and the discharge end of the extrusion screws is connected to the feed port of the die head frame of the blow molding machine, and the discharge port of the die head frame of the blow molding machine is connected to the feed end of the die head.

Images