Pre-polymerized material forming roller set device

Abstract

The utility model discloses a pre-polymerized material forming roller set device, and belongs to the technical field of PMI foam processing equipment. By arranging the forming roller set device, the unsolidified pre-polymerized foam is gradually thinned by utilizing a plurality of groups of pressing roller sets in the pressing roller mechanism, and then the unsolidified pre-polymerized foam is extruded into mutually connected square blocks through grooves in two extrusion forming rollers in the forming roller set; when the pre-polymerized foam needs to be put into a forming mold, the pre-polymerized foam can be taken down manually in a hand breaking mode, adjustment can be conducted at any time according to the needed size, cutting operation is omitted, dust is avoided, and therefore harm to an operator is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of PMI foam processing equipment, and particularly relates to a prepolymer material forming roll group device. Background Art

[0002] PMI foam is a new type of polymer structural foam material, which has the characteristics of low density, high temperature resistance, good wave transmission, high specific strength, etc., and shows good application prospects in the fields of aerospace, medical, military, electronic communication, radar, etc. Especially in the military industry, PMI foam is increasingly favored for the production and manufacture of adapter type products. With the increasingly fierce competition among enterprises in the industry, as well as the urgent needs for enterprise development and cost reduction and efficiency improvement, the industry has put forward higher requirements for the material cost, processing cost and production efficiency of PMI foam related products.

[0003] During the processing of PMI foam, it is necessary to first cut the foam in the prepolymer state into the required size, and then put it into a forming mold, apply pressure while heating. Heating causes crosslinking and curing, and pressure ensures that the material fills every corner of the mold to form the required shape. Since the prepolymer foam needs to be cut before being put into the mold, and the cutting size needs to be adjusted at any time according to requirements, it is difficult to use large cutting tools, and using small cutting devices will generate a large amount of powder dust, which is harmful to operators. Summary of the Invention

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art, and provides a prepolymer material forming roll group device.

[0005] The above technical problems of the utility model are mainly solved by the following technical solutions: a prepolymer material forming roll group device, including a bottom plate, on which a pressure roll mechanism is erected. The pressure roll mechanism includes two sliding shaft seats arranged on the upper surface of the bottom plate. Each sliding shaft seat is provided with a plurality of sliding grooves. Between the two sliding shaft seats, a pressure roll group with the same number as the sliding grooves is erected. Each group of the pressure roll group includes two sliders and a pressure roll erected between the two sliders. The two sliders are arranged in the sliding grooves of the sliding shaft seats and are slidably connected. The two ends of the pressure roll are rotatably connected to the sliders on both sides. At the top of the sliding shaft seat corresponding to each sliding groove, an adjusting handle is provided. The adjusting handle is threadedly connected to the sliding shaft seat and the lower end is rotatably connected to the corresponding slider. On the bottom plate behind the pressure roll assembly, a forming roll group is provided. The forming roll group includes two mounting brackets. The mounting brackets include two mounting arms. The two mounting arms are symmetrically arranged up and down. Between the mounting arms on the left and right sides, two extrusion forming rolls are respectively erected. The surfaces of the two extrusion forming rolls are provided with grooves that can cooperate with each other.

[0006] Preferably, two limiting guide strips are provided on the upper surface of the bottom plate, and the two limiting guide strips are provided on the inner side of the sliding shaft seat in the pressing roller mechanism.

[0007] Preferably, there is a gap of 0.1 mm to 0.3 mm between the two extrusion forming rollers.

[0008] Preferably, the distance between the pressure rollers in the plurality of pressure roller groups and the bottom plate surface decreases from front to back.

[0009] The utility model has the beneficial effects of: by setting a forming roller group device, using multiple groups of pressing rollers in the pressing roller mechanism to gradually press the unsolidified pre-polymer foam into thinner blocks, and then squeezing the unsolidified pre-polymer foam into mutually connected blocks through the grooves on the two extrusion forming rollers in the forming roller group, when it is needed to be put into the forming mold, the pre-polymer foam can be removed manually by manually breaking it, and it can be adjusted at any time according to the required size, eliminating the need for cutting operations, avoiding the generation of dust, and thus reducing the harm to the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] In the figure: 1, bottom plate; 2, sliding shaft seat; 3, slideway; 4, slider; 5, pressure roller; 6, adjustment handle; 7, mounting bracket; 8, mounting arm; 9, extrusion forming roller; 10, groove; 11, limiting guide strip. DETAILED DESCRIPTION

[0012] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0013] Embodiment: A prepolymer material forming roller group device, such as Figure 1As shown in the figure, it includes a bottom plate 1, on which a pressure roller 5 mechanism is installed. The pressure roller 5 mechanism includes two sliding shaft seats 2 provided on the upper surface of the bottom plate 1. Each of the sliding shaft seats 2 is provided with a plurality of slideways 3. Between the two sliding shaft seats 2, a pressure roller group with the same number as the slideways 3 is installed. Each pressure roller group includes two sliders 4 and a pressure roller 5 installed between the two sliders 4. The two sliders 4 are arranged in the slideways 3 of the sliding shaft seats 2 and are slidably connected. The two ends of the pressure roller 5 are rotatably connected to the sliders 4 on both sides. At the top of each sliding shaft seat 2 corresponding to the slideway 3, an adjustment handle 6 is provided. The adjustment handle 6 is threadedly connected to the sliding shaft seat 2 and the lower end is rotatably connected to the corresponding slider 4. On the bottom plate 1 behind the pressure roller assembly, a forming roller group is provided. The forming roller group includes two mounting brackets 7. The mounting brackets 7 include two mounting arms 8. The two mounting arms 8 are symmetrically arranged up and down. Two extrusion forming rollers 9 are respectively installed between the mounting arms 8 on the left and right sides. Grooves 10 that can cooperate with each other are provided on the surfaces of the two extrusion forming rollers 9.

[0014] Two limit guide bars 11 are provided on the upper surface of the bottom plate 1. The two limit guide bars 11 are arranged inside the sliding shaft seats 2 in the pressure roller 5 mechanism; there is a gap of 0.1 mm to 0.3 mm between the two extrusion forming rollers 9; the distances from the pressure rollers 5 in multiple pressure roller groups to the surface of the bottom plate 1 decrease sequentially from front to back.

[0015] Principle of the present utility model: During the polymerization process of the prepolymer foam, before it is completely cured, the flexible prepolymer foam is placed on the bottom plate 1 and is successively thinned by multiple pressure roller groups. Then, it is rolled by the forming roller group. Through the grooves 10 provided on the surface, the prepolymer foam is extruded into small squares. Since there is a gap of 0.1 mm to 0.3 mm between the two extrusion forming rollers 9, there will be a film of 0.1 mm to 0.3 mm for adhesion between the small squares. When it is necessary to disassemble the prepolymer foam, it is only necessary to break the small square-shaped prepolymer foam at the film. Before processing, a pulley or gear for driving rotation needs to be installed at one end of one of the two extrusion forming rollers 9 to facilitate driving by a driving motor.

[0016] Finally, it should be pointed out that the above embodiments are only relatively representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments and there can be many variations. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model should be considered to fall within the protection scope of the present utility model.

Claims

1. A pre-polymerized material forming roll group device, comprising a bottom plate (1), characterized in that: A press roller (5) mechanism is mounted on the bottom plate (1). The press roller (5) mechanism includes two sliding shaft seats (2) provided on the upper surface of the bottom plate (1). Each of the sliding shaft seats (2) is provided with a plurality of sliding grooves (3). A press roller group with the same number as the sliding grooves (3) is mounted between the two sliding shaft seats (2). Each press roller group includes two sliders (4) and a press roller (5) mounted between the two sliders (4). The two sliders (4) are arranged in the sliding grooves (3) of the sliding shaft seats (2) and are slidably connected. The two ends of the press roller (5) are rotatably connected to the sliders (4) on both sides. A adjusting handle (6) is provided at the top of each sliding shaft seat (2) corresponding to the sliding groove (3). The adjusting handle (6) is threadedly connected to the sliding shaft seat (2) and its lower end is rotatably connected to the corresponding slider (4). A forming roller group is provided on the bottom plate (1) behind the press roller assembly. The forming roller group includes two mounting brackets (7). The mounting brackets (7) include two mounting arms (8). The two mounting arms (8) are symmetrically arranged up and down. Two extrusion forming rollers (9) are respectively mounted between the mounting arms (8) on the left and right sides. Grooves (10) that can cooperate with each other are provided on the surfaces of the two extrusion forming rollers (9).

2. The pre-polymerized material forming roll group device according to claim 1, wherein: Two limit guide strips (11) are provided on the upper surface of the bottom plate (1). The two limit guide strips (11) are arranged inside the sliding shaft seats (2) in the press roller (5) mechanism.

3. The pre-polymerized material forming roll group device according to claim 1, characterized in that: A gap of 0.1 mm to 0.3 mm is provided between the two extrusion forming rollers (9).

4. The pre-polymer material forming roll group device according to claim 1, wherein: The distances from the press rollers (5) in multiple press roller groups to the surface of the bottom plate (1) decrease sequentially from front to back.

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