Hot melting machine for preparing low-hardness high-resilience polyurethane elastomer

Abstract

The hot melting machine comprises a base assembly, a hot pressing assembly, a steam assembly and a placing assembly, the upper end of the base assembly is fixedly connected with the hot pressing assembly, the right end of the base assembly is fixedly connected with the steam assembly, the placing assembly is placed at the left end of the base assembly, and the hot pressing assembly is fixedly connected with the steam assembly. The device is characterized by further comprising a base assembly; the upper end of the base is fixedly connected with the fixed mold; the trundles are fixedly connected to the lower end of the base; the display controller is fixedly connected to the front end of the base; hollow grooves are formed in four corners of the fixed mold; by arranging the placing assembly capable of cooling and transporting the polyurethane after hot melting is completed, the device can actively cool the polyurethane and directly transport the polyurethane to processing equipment for processing when the polyurethane needs to be transported after hot melting is completed, so that the device is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of hot melt machine equipment, specifically a standby hot melt machine with a low hardness and high resilience polyurethane elastic system. Background Technology

[0002] Polyurethane elastomer, also known as thermoplastic polyurethane rubber, or TPU for short, is a (AB)n-type block linear polymer. A is a high molecular weight (1000-6000) polyester or polyether, and B is a diol containing 2-12 straight-chain carbon atoms. The chemical structure between the AB segments is a diisocyanate. Thermoplastic polyurethane rubber is cross-linked by intermolecular hydrogen bonds or by slight cross-linking between macromolecular chains. These two cross-linking structures are reversible as the temperature increases or decreases. However, polyurethane elastomers require hot melt processing during preparation.

[0003] For example, a polyether ester elastomer hot melt machine as described in (authorization announcement number CN215320739U) includes a base, which is set on a worktable. The worktable has symmetrically opened grooves on its upper surface. A docking mechanism is symmetrically arranged at the upper end of the worktable. One docking mechanism is connected to the worktable through a fixing plate, and the other docking mechanism is slidably connected to the worktable through a slider. A locking mechanism for easy loading and unloading is provided at the upper end of the docking mechanism, and a workpiece fixing mechanism is symmetrically arranged on the side of the docking mechanism.

[0004] The aforementioned device uses a negative pressure pump to create negative pressure inside the mold groove to fix the workpiece, thereby ensuring accurate docking of the workpiece during hot melting. However, the aforementioned device does not have a device to cool down and transport the polyurethane after hot melting. This makes it inconvenient to wait a long time for the polyurethane to cool down before transporting it to the processing equipment for processing when the polyurethane needs to be hot melted. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a spare hot melt machine with low hardness and high resilience polyurethane elastic system.

[0006] This utility model is implemented as follows: a standby hot melt machine with low hardness and high resilience polyurethane elasticity is constructed. The device includes a base assembly, a hot pressing assembly, a steam assembly, and a placement assembly. The upper end of the base assembly is fixedly connected to the hot pressing assembly, the right end of the base assembly is fixedly connected to the steam assembly, and the placement assembly is placed on the left end of the base assembly. The device is characterized by further including: the base assembly; a base, the upper end of which is fixedly connected to a fixed mold; casters, the casters being fixedly connected to the lower end of the base; a display controller, the display controller being fixedly connected to the front end of the base; a fixed mold, the fixed mold having hollowed-out grooves at its four corners; a demolding electric push rod, the demolding electric push rod being fixedly connected to the upper end of the base, the upper telescopic rod of the demolding electric push rod being slidably connected to the fixed mold; and a push plate, the push plate being fixedly connected to the upper telescopic rod of the demolding electric push rod.

[0007] Preferably, the hot pressing assembly includes: a support rod, the lower end of which is fixedly connected to a fixed mold; a fixed plate, which is fixedly connected to the upper end of the support rod; an electric push rod, which is fixedly connected to the upper end of the fixed plate, the lower telescopic rod of which is fixedly connected to a movable heating plate, and the lower telescopic rod of which is also slidably connected to the fixed plate; a movable heating plate, which is slidably connected to the middle of the support rod; an electric heating element, the upper end of which is fixedly connected to the movable heating plate, and the lower end of which is fixedly connected to the fixed mold; a telescopic protective block, which is fixedly connected to the rear end of the electric heating element; and an electric wire, which is fixedly connected inside the telescopic protective block, and the front end of which is fixedly connected to the electric heating element.

[0008] Preferably, the steam assembly includes: a steam generator, the upper end of which is fixedly connected to a braided metal hose; a braided metal hose, the upper end of which is fixedly connected to a steam delivery frame; a steam regulating valve, the steam regulating valve being fixedly connected to the lower end of the braided metal hose; a cleaning electric push rod, the cleaning electric push rod being fixedly connected to the upper end of a base; a steam delivery frame, the steam delivery frame being fixedly connected to the telescopic rod at the left end of the cleaning electric push rod; and a steam nozzle, the steam nozzle being fixedly connected to the upper and lower ends of the steam delivery frame.

[0009] Preferably, the placement assembly includes: a guide hopper fixedly connected to the upper end of the base and also fixedly connected to the left end of the fixed mold; a placement box placed at the left end of the base; a ventilation channel located at both ends of the guide hopper; a sliding groove also located at both ends of the guide hopper; a fan fixedly connected to both ends of the guide hopper; a dustproof net slidably connected to the placement box via the sliding groove; a battery fixedly connected to the front end of the placement box; and a switch button fixedly connected to the front end of the placement box.

[0010] Preferably, the casters are provided in eight sets and are evenly distributed on the base and the lower end of the placement box.

[0011] Preferably, the support rods are provided in four sets.

[0012] Preferably, the fan is provided in four sets, and the dustproof net is provided in two sets.

[0013] This utility model has the following advantages: This utility model provides an improved low-hardness, high-resilience polyurethane elastic material standby hot melt machine, which has the following improvements compared to similar equipment:

[0014] The present invention discloses a low-hardness, high-resilience polyurethane elastic body standby hot melt machine. By setting up a placement component that can cool and transport the polyurethane after hot melting, this device can actively cool the polyurethane and transport it directly to the processing equipment for processing when it is necessary to transport the polyurethane after hot melting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the base assembly structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the hot-pressing component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the steam assembly structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the placement component structure of this utility model.

[0020] The components include: base assembly-1, base-11, casters-12, display controller-13, fixed mold-14, demolding electric push rod-15, push plate-16, hot pressing assembly-2, support rod-21, fixing plate-22, electric push rod-23, movable heating plate-24, electric heating element-25, telescopic protective block-26, wire-27, steam assembly-3, steam generator-31, braided metal hose-32, steam regulating valve-33, cleaning electric push rod-34, steam conveying frame-35, steam nozzle-36, placement assembly-4, guide hopper-41, placement box-42, ventilation channel-43, chute-44, fan-45, dustproof net-46, storage battery-47, and switch button-48. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-5The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Example 1:

[0025] Please see Figures 1-5 This utility model discloses a low-hardness, high-resilience polyurethane elastic body standby hot melt machine, including a base assembly 1, a hot pressing assembly 2, a steam assembly 3, and a placement assembly 4. The upper end of the base assembly 1 is fixedly connected to the hot pressing assembly 2, the right end of the base assembly 1 is fixedly connected to the steam assembly 3, and the placement assembly 4 is placed on the left end of the base assembly 1. The feature is that it also includes a base assembly 1, the upper end of the base 11 is fixedly connected to a fixed mold 14, casters 12 are fixedly connected to the lower end of the base 11, a display controller 13 is fixedly connected to the front end of the base 11, the fixed mold 14 has hollowed-out grooves on its four corners, a demolding electric push rod 15 is fixedly connected to the upper end of the base 11, the upper telescopic rod of the demolding electric push rod 15 is slidably connected to the fixed mold 14, and after the demolding electric push rod 15 is started, it can drive the push plate 16 to move up and down. The push plate 16 is fixedly connected to the upper telescopic rod of the demolding electric push rod 15. There are eight sets of casters 12, which are evenly distributed at the lower ends of the base 11 and the placement box 42.

[0026] The hot pressing assembly 2 has a support rod 21 whose lower end is fixedly connected to the fixed mold 14, a fixed plate 22 fixedly connected to the upper end of the support rod 21, an electric push rod 23 fixedly connected to the upper end of the fixed plate 22, a telescopic rod at the lower end of the electric push rod 23 fixedly connected to the movable heating plate 24, and a telescopic rod at the lower end of the electric push rod 23 also slidably connected to the fixed plate 22. After the electric push rod 23 is started, it can drive the movable heating plate 24 to move up and down. When the movable heating plate 24 moves up and down, it can drive the upper end of the electric heating element 25 to move and the telescopic protective block 26 to extend and retract. The movable heating plate 24 is slidably connected to the middle of the support rod 21. The upper end of the electric heating element 25 is fixedly connected to the movable heating plate 24. The lower end of the electric heating element 25 is fixedly connected to the fixed mold 14. The telescopic protective block 26 is fixedly connected to the rear end of the electric heating element 25. The wire 27 is fixedly connected inside the telescopic protective block 26. The front end of the wire 27 is fixedly connected to the electric heating element 25. The support rod 21 has a total of four sets.

[0027] The steam assembly 3 has a steam generator 31, the upper end of which is fixedly connected to a braided metal hose 32. The upper end of the braided metal hose 32 is fixedly connected to a steam conveying frame 35. After the steam generator 31 is started, it can transport steam through the braided metal hose 32 to the steam conveying frame 35 and spray it out from the steam nozzle 36 to the upper end of the fixed mold 14 and the lower end of the movable heating plate 24. The steam regulating valve 33 is fixedly connected to the lower end of the braided metal hose 32. The cleaning electric push rod 34 is fixedly connected to the upper end of the base 11. The steam conveying frame 35 is fixedly connected to the telescopic rod at the left end of the cleaning electric push rod 34. The steam nozzle 36 is fixedly connected to the upper and lower ends of the steam conveying frame 35.

[0028] This utility model provides an improved standby hot melt machine with low hardness and high resilience polyurethane elasticity, and its working principle is as follows:

[0029] First, when using this device, place it in the work area and then connect it to an external power source to provide the necessary electrical energy for its operation.

[0030] Secondly, when this device is needed, the polyurethane raw material can be placed on the upper end of the fixed mold 14. Then, the electric heating element 25 can be started by the display controller 13. After the electric heating element 25 is started, the fixed mold 14 and the moving heating plate 24 can be heated to heat the polyurethane on the fixed mold 14. Then, the electric push rod 23 can be started to drive the moving heating plate 24 to move downward. When the moving heating plate 24 moves downward, it can drive the upper end of the electric heating element 25 to move and the extension and retraction protective block 26 to extend and retract, so that the moving heating plate 24 contacts the fixed mold 14 to heat and melt the polyurethane into sheets. After the polyurethane is extruded into sheets, the electric push rod 23 can be started to raise the moving heating plate 24, and the demolding electric push rod can be controlled at the same time. The push rod 15 is activated, causing the push plate 16 to move upward, pushing the polyurethane up so that the workers can push the polyurethane onto the guide hopper 41, where it is guided to fall into the placement box 42. When the device needs to be cleaned, the steam generator 31 can be activated, allowing the steam generator 31 to deliver steam to the steam conveying frame 35 through the braided metal hose 32. The steam is then sprayed from the steam nozzle 36 onto the upper end of the fixed mold 14 and the lower end of the moving heating plate 24. At the same time, the steam pressure and flow rate of the steam in the braided metal hose 32 are controlled by the steam regulating valve 33. Then, the cleaning electric push rod 34 is activated, causing the steam conveying frame 35 and its upper components to move, thoroughly cleaning the fixed mold 14 and the moving heating plate 24.

[0031] Example 2:

[0032] Please see Figures 1-5 This utility model discloses a low-hardness, high-resilience polyurethane elastic body standby hot melt machine. Compared with Embodiment 1, this embodiment further includes: a placement component 4, a guide hopper 41 fixedly connected to the upper end of the base 11, the guide hopper 41 also fixedly connected to the left end of the fixed mold 14, a placement box 42 placed at the left end of the base 11, a ventilation groove 43 provided at both ends of the guide hopper 41, a sliding groove 44 also provided at both ends of the guide hopper 41, and a fan 45 also fixedly connected to both ends of the guide hopper 41. After the fan 45 at the left end of the placement box 42 is started, it can deliver external air into the placement box 42 to cool the polyurethane. Activating the fan 45 at the right end of the placement box 42 can allow the high-temperature air inside the placement box 42 to be sucked in and blown out. A dustproof net 46 is slidably connected to the placement box 42 through the sliding groove 44. A battery 47 is fixedly connected to the front end of the placement box 42, and a switch button 48 is also fixedly connected to the front end of the placement box 42. There are four sets of fans 45 and two sets of dustproof nets 46.

[0033] In this embodiment:

[0034] First, when polyurethane needs to be transported, once the polyurethane is pushed and falls into the placement box 42 and is full, the switch button 48 can be pressed to start the fan 45. After the fan 45 at the left end of the placement box 42 is started, outside air can be transported into the placement box 42 to cool the polyurethane. At the same time, starting the fan 45 at the right end of the placement box 42 allows the high-temperature air in the placement box 42 to be sucked in and blown out to cool it down. Meanwhile, the dustproof net 46 can prevent dust from entering the placement box 42 due to the suction of the fan 45. When the dustproof net 46 needs to be replaced, the dustproof net 46 can be pulled to slide out from the left and right ends of the placement box 42 to replace the dustproof net 46.

[0035] This utility model provides an improved standby hot melt machine for low-hardness, high-resilience polyurethane elastic materials. By setting up a placement component 4 that can cool and transport the polyurethane after hot melting, this device can actively cool the polyurethane and transport it directly to the processing equipment for processing when it is necessary to transport the polyurethane after hot melting, which is more convenient.

[0036] The above describes the basic principles, main features, and advantages of this utility model. All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be detailed here.

[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A standby hot melt machine for low-hardness, high-resilience polyurethane elastic materials, comprising a base assembly (1), a hot pressing assembly (2), a steam assembly (3), and a placement assembly (4), wherein the upper end of the base assembly (1) is fixedly connected to the hot pressing assembly (2), the right end of the base assembly (1) is fixedly connected to the steam assembly (3), and the placement assembly (4) is placed on the left end of the base assembly (1), characterized in that: It also includes a base assembly (1); The base (11) is fixedly connected to the fixed mold (14) at its upper end; Casters (12) are fixedly connected to the lower end of the base (11); Display controller (13), which is fixedly connected to the front end of base (11); Fixed mold (14), the fixed mold (14) has hollowed-out grooves on its four corners; Demolding electric push rod (15), the demolding electric push rod (15) is fixedly connected to the upper end of the base (11), and the upper end telescopic rod of the demolding electric push rod (15) is slidably connected to the fixed mold (14); Push plate (16), which is fixedly connected to the upper telescopic rod of the demolding electric push rod (15).

2. The low-hardness, high-resilience polyurethane elastic body standby hot melt machine according to claim 1, characterized in that: The hot-pressing assembly (2) includes; A support rod (21) is fixedly connected at its lower end to a fixed mold (14); A fixing plate (22) is fixedly connected to the upper end of the support rod (21); An electric push rod (23) is fixedly connected to the upper end of a fixed plate (22). The lower end telescopic rod of the electric push rod (23) is fixedly connected to a movable heating plate (24). The lower end telescopic rod of the electric push rod (23) is also slidably connected to the fixed plate (22). A movable heating plate (24) is slidably connected to the middle of the support rod (21); The upper end of the heating element (25) is fixedly connected to the movable heating plate (24), and the lower end of the heating element (25) is fixedly connected to the fixed mold (14). Telescopic protective block (26), the telescopic protective block (26) is fixedly connected to the rear end of the heating element (25); The wire (27) is fixedly connected inside the telescopic protective block (26), and the front end of the wire (27) is fixedly connected to the heating element (25).

3. The low-hardness, high-resilience polyurethane elastic body standby hot melt machine according to claim 1, characterized in that: The steam assembly (3) includes; A steam generator (31) is fixedly connected at its upper end to a braided metal hose (32); Braided metal hose (32), the upper end of which is fixedly connected to the steam transmission frame (35); A steam regulating valve (33) is fixedly connected to the lower end of a braided metal hose (32); Cleaning electric push rod (34), the cleaning electric push rod (34) is fixedly connected to the upper end of the base (11); Steam transmission frame (35), wherein the steam transmission frame (35) is fixedly connected to the telescopic rod at the left end of the cleaning electric push rod (34); Steam nozzle (36) is fixedly connected to the upper and lower ends of the steam conveyor frame (35).

4. The standby hot melt machine with low hardness and high resilience polyurethane elasticity according to claim 1, characterized in that: The placement component (4) includes; The guide hopper (41) is fixedly connected to the upper end of the base (11) and the guide hopper (41) is also fixedly connected to the left end of the fixed mold (14); Placement box (42), said placement box (42) is placed at the left end of base (11); Ventilation groove (43) is provided at both ends of the guide hopper (41); The chute (44) is also provided at both ends of the guide hopper (41); The blower (45) is also fixedly connected to the left and right ends of the guide hopper (41); A dustproof net (46) is slidably connected to a placement box (42) via a groove (44); A storage battery (47) is fixedly connected to the front end of the storage box (42); A switch button (48) is also fixedly connected to the front end of the placement box (42).

5. The low-hardness, high-resilience polyurethane elastic body standby hot melt machine according to claim 1, characterized in that: The casters (12) are provided in eight sets and are evenly distributed at the bottom of the base (11) and the storage box (42).

6. The low-hardness, high-resilience polyurethane elastic body standby hot melt machine according to claim 2, characterized in that: The support rod (21) has four sets.

7. The low-hardness, high-resilience polyurethane elastic body standby hot melt machine according to claim 4, characterized in that: The fan (45) has four sets, and the dustproof net (46) has two sets.

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