Environment-friendly adhesive production equipment for plywood and production process thereof

Abstract

The application discloses plywood environment-friendly adhesive production and manufacturing equipment and a production process thereof, which comprises a fixed bottom plate, support plates are embedded and installed on the left and right ends of the top side of the fixed bottom plate, a support side frame is fixedly installed on the top side of the fixed bottom plate, a fixed plate is integrally formed on the side of the support side frame, a fixed sleeve plate is arranged in the fixed plate, and a protection assembly is detachably installed on the top end of the fixed bottom plate. The guide plate structure, the heating equipment, the fixed cavity and the heat preservation assembly are matched with each other, the outer surfaces of the fixed guide plates are smooth, the viscosity of the glue material in the equipment can be effectively reduced when the heating winding wire heats the bottom end of the fixed cavity, the bubbles contained in the glue material can be gradually separated out and move upwards along the surface of the fixed guide plate until the bubbles contact with air at the top end of the fixed cavity, and then the bubbles are discharged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plywood production process, more particularly, the present application is a kind of plywood with environment-friendly adhesive production manufacturing equipment and its production process. BACKGROUND

[0002] Phenolic resin is the general term of phenol and aldehyde forming resin under the action of catalyst, in the field of wood processing, phenolic resin is one of the main glues widely used, its consumption is second only to urea-formaldehyde resin, adhesive is a kind of chemical product indispensable for the development of national economy, and is widely used in various fields of national economy, adhesive varieties are various, components are different, especially in the production of water-resistant, weather-resistant wood products, phenolic resin has special significance, phenolic resin adhesive has good heat resistance, high bonding strength, good aging resistance and excellent electrical insulation, and is cheap and easy to use, therefore, it has been widely used, the advantages are: large polarity, strong adhesion; large rigidity, high heat resistance; good aging resistance; water resistance, oil resistance, chemical resistance, mildew resistance; easy to modify itself, and can modify other adhesives, so it accounts for a large proportion in the adhesive used in wood processing production.

[0003] However, in actual use, there are still some shortcomings, such as: the existing phenolic resin adhesive needs to be filtered at the last stage to remove the bubbles and small particles in the finished product, the current removal device does not treat the small bubbles in the colloid, which leads to the problem of gap and poor adhesion between the boards after the boards are pasted.

[0004] Therefore, the inventor has improved the existing structure and deficiencies based on years of experience in design, development and actual production in the relevant industry, and provided a plywood with environment-friendly adhesive production manufacturing equipment and its production process, so as to achieve the purpose of having more practical value. SUMMARY

[0005] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide an environmentally friendly adhesive manufacturing equipment and process for plywood. By incorporating a guide plate structure, heating equipment, a fixed cavity, and insulation components, and utilizing their mutual adaptation, the smooth outer surface of the fixed guide plate ensures that the viscosity of the adhesive material inside the equipment decreases when the heating winding wire heats the bottom of the fixed cavity. This allows air bubbles contained within the adhesive material to gradually precipitate and move upwards along the surface of the fixed guide plate until they come into contact with air at the top outlet of the fixed cavity, thus being discharged. This further improves the processing effect of the device. Simultaneously, the three fixed guide plates are sequentially arranged inside the fixed cavity, thereby improving the efficiency of air bubble removal from the adhesive and further enhancing the usability of the device. Furthermore, the shapes of the arc-shaped side plates and the matching arc-shaped plate are adapted to the top shape of the fixed cavity, allowing the mounting plate to be smoothly pulled out and fitted from the top of the fixed cavity, ensuring the flexibility of disassembly and reassembly of the mounting plate, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an environmentally friendly adhesive manufacturing equipment and manufacturing process for plywood, comprising a fixed base plate, support plates being inlaid and installed on both the left and right ends of one side of the top of the fixed base plate, a support side frame being fixedly installed on one side of the top of the fixed base plate, a fixed plate being integrally formed on the side of the support side frame, a fixed sleeve plate being provided inside the fixed plate, and a protective component being detachably installed on the top of the fixed base plate;

[0007] The fixed sleeve plate has a fixed cavity inside, and a guide plate structure is detachably installed inside the fixed cavity. A heating device is fixedly installed on the top of the fixed base plate. The fixed cavity is detachably fitted on the bottom end face of the fixed base plate. A fixed threaded hole is opened on the top of the fixed base plate. A fixed feed pipe is connected to the top of the fixed cavity. A discharge port is opened on the bottom end face of the fixed cavity.

[0008] In a preferred embodiment, the protective component includes a fixed side plate, a fixed slide block is integrally formed on the side of the fixed side plate, a connecting collar plate is slidably fitted on one side of the fixed slide block, and a fixed slide groove is opened on the side of the connecting collar plate near the fixed slide block.

[0009] In a preferred embodiment, a fixed connecting plate is integrally formed at the bottom end of the connecting ring plate, and a fixed threaded hole is provided on the other side of the fixed connecting plate. A fastening bolt is installed in the internal thread of the fixed threaded hole. The bottom end of the fastening bolt passes through the internal surface of the fixed threaded hole and extends to the internal surface of the fixed threaded hole, and is installed with the internal thread of the fixed threaded hole.

[0010] In a preferred implementation form, the guide plate structure comprises a fixed guide plate, a top end of the fixed guide plate is detachably sleeved with a fixed mounting plate, bottom end faces of the fixed mounting plate are fixedly installed with arc-shaped side plates on left and right sides, and a limiting notch is formed at the bottom end of the fixed mounting plate.

[0011] In a preferred implementation form, the bottom face of the fixed mounting plate is fixedly sleeved with an adaptive arc-shaped plate at one side of the arc-shaped side plate, and the adaptive arc-shaped plate and the arc of the arc-shaped side plate are mutually adaptive.

[0012] In a preferred implementation form, the heating device comprises a controller, a bottom end of the controller is fixedly installed with a fixed base, a side face of the controller is electrically connected with a display screen, one side of the controller is electrically connected with a connecting line, the other side of the connecting line is electrically connected with a heating winding wire, and the surface of the heating winding wire is in contact with the outside of the bottom end of the fixed cavity.

[0013] In a preferred implementation form, the heat preservation assembly comprises a first fixed heat preservation plate, one side of the first fixed heat preservation plate is detachably sleeved with a second fixed heat preservation plate, side faces of the first fixed heat preservation plate and the second fixed heat preservation plate are both provided with fixed through holes, and side faces of the first fixed heat preservation plate and the second fixed heat preservation plate are detachably sleeved with a mounting sleeve plate.

[0014] In a preferred implementation form, top ends of the mounting sleeve plate are both provided with embedded circular holes, the embedded circular holes are detachably sleeved with limiting shafts inside, inner side wall faces of the first fixed heat preservation plate and the second fixed heat preservation plate are both provided with fixed threaded grooves, and the first fixed heat preservation plate and the second fixed heat preservation plate are made of high-temperature-resistant materials.

[0015] In a preferred implementation form, the heating winding wire is spirally distributed and wound to the bottom end face of the fixed cavity, the number of the fixed guide plates is three, the three fixed guide plates are sequentially sleeved at the bottom end of the fixed mounting plate, the fixed guide plates are parallel to the overall structure of the fixed cavity, outer surfaces of the fixed guide plates are all smooth, shapes of the arc-shaped side plates and the adaptive arc-shaped plate are adaptive to the shape of the top end of the fixed cavity, and outer surfaces of the arc-shaped side plates and the adaptive arc-shaped plate are provided with rough surface structures.

[0016] In a preferred embodiment, S1, first prepare a quantitative phenol, 37% formaldehyde solution and sodium hydroxide solution in the reaction kettle, (the ratio of phenol, 37% formaldehyde solution and sodium hydroxide solution is 1:1.1:2) then start the stirring device and start heating, reach 92℃, keep the reaction for 30 minutes, then add the second formaldehyde solution, the phenol formaldehyde resin is synthesized by the condensation of phenol and excess formaldehyde under the action of alkaline catalyst. Phenol and excess formaldehyde addition reaction, phenol alcohol mixture is generated, mainly phenol one methyl and dimethyl derivatives;

[0017] S2, under alkaline conditions, with the increase of temperature, phenol alcohol mixture occurs condensation reaction, the condensation reaction continues, generates other more kinds of condensation products, one hydroxyl and dihydroxymethyl derivatives and phenolic condensation product continue to condensation, with the lengthening of molecular chain, the increase of molecular weight, PF resin is generated;

[0018] S3, phenolic resin becomes body net structure (i.e. curing) under high temperature or high pressure and other specific conditions, in which phenol and formaldehyde are added once, sodium hydroxide is added three times, first under low temperature conditions for a period of time, reach a certain viscosity, then continue to react at high temperature to a higher molecular weight, then adjust to the most suitable viscosity according to different purposes. When the resin is used to produce plywood, the hot pressing temperature can be reduced to 117-125℃. Different from the usual synthesis process, formaldehyde and phenol are first reacted at a high molar ratio of 2.5-3.0 to a certain extent, then phenol or phenol and formaldehyde are added, so that the molar ratio of formaldehyde to phenol is reduced to 1.8-2.0, so that the synthesized phenolic resin adhesive not only has low free formaldehyde content, but also has rapid curing;

[0019] S4, after another 50 minutes of reaction, control the final viscosity of the resin to about 400, and reach the required viscosity to cool and discharge;

[0020] S5, finally, the reactants are packaged and canned, and at the same time, one percent of the quantity is sampled and inspected (i.e. one hundred samples are randomly sampled and inspected) to control the quality of the product, and after the sampling and inspection is qualified, the product can be stored in the warehouse or transported for packaging and delivery.

[0021] Technical effects and advantages of the present application:

[0022] 1. The application sets up the guide plate structure, heating equipment and fixed cavity, heat preservation assembly, and uses the mutual adaptation of the three to effectively ensure the viscosity of the glue material inside the equipment to drop when the heating winding wire heats the bottom end of the fixed cavity, so that the bubbles contained in the glue material gradually separate out and move upwards along the surface of the fixed guide plate until they contact with air at the top end outlet of the fixed cavity and are then discharged, further improving the processing effect of the device, and the three fixed guide plates are sequentially arranged in the fixed cavity to improve the discharge efficiency of the bubbles inside the glue and further improve the usability of the device, and the shape of the arc-shaped side plate and the adaptive arc-shaped plate is adapted to the shape of the top end of the fixed cavity, so that the fixed mounting plate can be smoothly pulled out and inlaid in the top end of the fixed cavity, thereby ensuring the flexibility of disassembling the fixed mounting plate;

[0023] 2. The application sets up the heat preservation assembly and the fixed cavity, and the first fixed heat preservation plate and the second fixed heat preservation plate are made of glass fiber high temperature resistant material, which can ensure that the heating winding wire on the bottom end surface of the fixed cavity and its outer surface is in a stable state when it is heat preserved, thereby improving the usability of the device, and the fixed threaded groove in the heat preservation material contacts with the outer surface of the heating winding wire and the fixed cavity, further improving the adaptation and fit of the structure, and increasing the heat preservation effect and heat transfer speed of the device, thereby further improving the heat conversion rate of the device;

[0024] 3. The application sets up the protection assembly and the fixed cavity, and the shape of the protection assembly surrounds the side surface of the fixed cavity to avoid high temperature scalding of the surrounding workers inside the heat preservation assembly, thereby further improving the safety of the device, and the protection assembly can be disassembled by relatively sliding between the fixed side plate and the connecting sleeve plate, thereby facilitating the subsequent overhaul, maintenance and replacement of the whole device, further improving the flexibility and practicality of the device, and reducing the difficulty of personnel in subsequent observation of the surface of the fixed cavity. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the overall structure schematic diagram of the application;

[0026] Figure 2 It is the three-dimensional assembly structure schematic diagram of the application;

[0027] Figure 3 It is the fixed cavity three-dimensional assembly structure schematic diagram of the application;

[0028] Figure 4 It is the B place of the application Figure 3 enlarged structure schematic diagram;

[0029] Figure 5 It is the three-dimensional structure schematic diagram of the guide plate assembly of the application;

[0030] Figure 6 It is the half-section structure schematic diagram of the fixed cavity of the application;

[0031] Figure 7 It is the three-dimensional assembly structure schematic diagram of the protection assembly of the application;

[0032] Figure 8 It is the Figure 7 The enlarged structure schematic diagram of A of the application.

[0033] The figure mark is: 1, fixed bottom plate; 2, support plate; 3, support side frame; 4, fixed plate; 5, fixed sleeve plate; 6, protection assembly; 7, fixed cavity; 8, guide plate structure; 9, heating equipment; 10, heat preservation assembly; 11, fixed threaded hole; 12, fixed feeding pipe; 13, discharge port; 61, fixed side plate; 62, fixed sliding block; 63, connecting sleeve ring plate; 64, fixed sliding slot; 65, fixed connecting plate; 66, fixed screw port; 67, fastening bolt; 81, fixed guide plate; 82, fixed mounting plate; 83, arc-shaped side plate; 84, limiting slot; 85, adaptive arc-shaped plate; 91, controller; 92, fixed base; 93, display screen; 94, heating winding wire; 95, connecting line; 101, first fixed heat preservation plate; 102, second fixed heat preservation plate; 103, fixed through hole; 104, mounting sleeve plate; 105, embedded round hole; 106, fixed threaded groove; 107, limiting shaft. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0035] As shown in the accompanying drawings, Figure 1 to the accompanying drawings, Figure 8 The production and manufacturing equipment and production process of the environment-friendly adhesive for plywood, which comprises a fixed bottom plate 1, support plates 2 are embedded and installed on the left and right ends of the top end of the fixed bottom plate 1, a support side frame 3 is fixedly installed on the top end of the fixed bottom plate 1, a fixed plate 4 is integrally formed on the side surface of the support side frame 3, a fixed sleeve plate 5 is arranged in the fixed plate 4, and a protection assembly 6 is detachably installed on the top end of the fixed bottom plate 1.

[0036] The inside of the fixed sleeve plate 5 is sleeved with a fixed cavity 7, the inside of the fixed cavity 7 is detachably installed with a guide plate structure 8, the top end of the fixed bottom plate 1 is fixedly installed with a heating device 9, the bottom end surface of the fixed cavity 7 is detachably sleeved with a fixed cavity 7, the top end of the fixed bottom plate 1 is provided with a fixed threaded hole 11, the top end of the fixed cavity 7 is in communication with a fixed feeding pipe 12, and the bottom end surface of the fixed cavity 7 is provided with a discharge port 13.

[0037] The protection assembly 6 comprises a fixed side plate 61, the side of the fixed side plate 61 is integrally formed with a fixed sliding block 62, one side of the fixed sliding block 62 is sleeved with a connecting sleeve ring plate 63, the side of the connecting sleeve ring plate 63 close to the fixed sliding block 62 is provided with a fixed sliding groove 64, the bottom end of the connecting sleeve ring plate 63 is integrally formed with a fixed connecting plate 65, the other side of the fixed connecting plate 65 is provided with a fixed screw port 66, the inside of the fixed screw port 66 is threadedly installed with a fastening bolt 67, the bottom end of the fastening bolt 67 penetrates through the inside of the fixed screw port 66 and extends to the inside of the fixed threaded hole 11 and is threadedly installed with the inside of the fixed threaded hole 11, the guide plate structure 8 comprises a fixed guide plate 81, the top end of the fixed guide plate 81 is detachably sleeved with a fixed mounting plate 82, the bottom end surface of the fixed mounting plate 82 is fixedly installed with arc-shaped side plates 83 on the left and right sides, the bottom end of the fixed mounting plate 82 is provided with a limiting groove 84, the bottom surface of the fixed mounting plate 82 and located at one side of the arc-shaped side plate 83 is fixedly sleeved with an adaptive arc-shaped plate 85, the adaptive arc-shaped plate 85 and the arc of the arc-shaped side plate 83 are adapted to each other, the heating device 9 comprises a controller 91, the bottom end of the controller 91 is fixedly installed with a fixed base 92, the side of the controller 91 is electrically connected with a display screen 93, one side of the controller 91 is electrically connected with a connecting line 95, the other side of the connecting line 95 is electrically connected with a heating winding wire 94, the surface of the heating winding wire 94 is in contact with the bottom end surface of the fixed cavity 7, the heat preservation assembly 10 comprises a first fixed heat preservation plate 101, one side of the first fixed heat preservation plate 101 is detachably sleeved with a second fixed heat preservation plate 102, the sides of the first fixed heat preservation plate 101 and the second fixed heat preservation plate 102 are provided with fixed through holes 103, and the sides of the first fixed heat preservation plate 101 and the second fixed heat preservation plate 102 are detachably sleeved with a mounting sleeve plate 104.

[0038] Specifically referring to the drawings attached Figures 2-4 in the description, the top end of the mounting sleeve plate 104 is provided with embedded circular holes 105 on the left and right sides, the inside of the embedded circular holes 105 is detachably sleeved with a limiting shaft 107, the inner side wall surface of the first fixed heat preservation plate 101 and the second fixed heat preservation plate 102 is provided with a fixed threaded groove 106, and the first fixed heat preservation plate 101 and the second fixed heat preservation plate 102 are made of high-temperature-resistant materials.

[0039] The embodiment is specific: the first fixed heat preservation plate 101 and the second fixed heat preservation plate 102 are made of glass fiber high-temperature-resistant material, so that when the heating winding wire 94 on the bottom end face of the fixed cavity 7 and the outer surface thereof is heat preserved, the first fixed heat preservation plate 101 and the second fixed heat preservation plate 102 can also ensure that they are in a stable state, avoid being deformed by high-temperature baking, thereby improving the usability of the device, and further increasing the service life, the working state and the effect of the device.

[0040] Specific reference is made to the drawings accompanying the specification Figures 5-7 The heating winding wire 94 is spirally distributed and wound to the bottom end face of the fixed cavity 7, the number of the fixed guide plates 81 is three, the three fixed guide plates 81 are sequentially sleeved at the bottom end of the fixed mounting plate 82, the fixed guide plates 81 are parallel to the overall structure of the fixed cavity 7, the outer surfaces of the fixed guide plates 81 are smooth, the shapes of the arc-shaped side plates 83 and the adaptive arc-shaped plates 85 are adapted to the shape of the top end of the fixed cavity 7, and the outer surfaces of the arc-shaped side plates 83 and the adaptive arc-shaped plates 85 are provided with rough surface structures.

[0041] The embodiment is specific: the outer surfaces of the fixed guide plates 81 are smooth, so that when the heating winding wire 94 heats the bottom end of the fixed cavity 7, the viscosity of the glue material inside the equipment can be effectively reduced, so that the bubbles contained in the glue material gradually separate out and move upwards along the surfaces of the fixed guide plates 81 until they contact air at the top end outlet of the fixed cavity 7 and are then discharged, thereby further improving the processing effect of the device, three fixed guide plates 81 are sequentially arranged in the fixed cavity 7, thereby improving the bubble discharge efficiency of the glue inside, further improving the usability of the device, and the shapes of the arc-shaped side plates 83 and the adaptive arc-shaped plates 85 are adapted to the shape of the top end of the fixed cavity 7, so that the fixed mounting plate 82 can be smoothly pulled out and inlaid and sleeved from the top end of the fixed cavity 7, thereby ensuring the flexibility of disassembly of the fixed mounting plate 82.

[0042] Working principle of the application:

[0043] First step: first, the operator normally assembles all components of the device, and then normally starts the device.

[0044] Second step: S1, first prepare a quantitative phenol, 37% formaldehyde solution and sodium hydroxide solution in the reaction kettle, (the ratio of phenol, 37% formaldehyde solution and sodium hydroxide solution is 1:1.1:2) then start stirring device and begin to heat, reach 92 ℃ after heat preservation reaction 30 minutes, then add the second formaldehyde solution, artificial board phenolic resin is made of phenol and excess formaldehyde in the presence of base catalyst condensation. Phenol and excess formaldehyde addition reaction, phenolic alcohol mixture is generated, mainly is phenol once methyl and dimethyl derivative;

[0045] S2, under alkaline conditions, with the increase of temperature, phenolic alcohol mixture occurs condensation reaction, condensation reaction continues, generate more kinds of condensation product, one hydroxyl and dihydroxymethyl derivative and phenolic condensation product continue to condensation, with the increase of molecular chain, the increase of molecular weight, PF resin is generated;

[0046] S3, phenolic resin in high temperature or high pressure and other specific conditions, become body net structure (i.e. for curing), in which phenol and formaldehyde is added once, sodium hydroxide is added in 3 times, first in low temperature conditions for a period of time, reach a certain viscosity, then continue to react at high temperature to higher molecular weight, then according to different purposes to adjust to the most suitable viscosity. When this kind of resin is used to produce plywood, the hot pressing temperature can be reduced to 117-125 ℃. Different from the usual synthesis process, formaldehyde and phenol are first reacted at a high molar ratio of 2.5-3.0 to a certain extent, and then phenol or phenol and formaldehyde are added, so that the molar ratio of formaldehyde to phenol is reduced to 1.8-2.0. The phenolic resin adhesive synthesized in this way not only has low free formaldehyde content, but also cures rapidly;

[0047] S4, immediately after the heat preservation reaction for 50 minutes, control the final viscosity of the resin at about 400, reach the required viscosity and then cool down and discharge;

[0048] S5, finally, the reactants are packaged and canned, and at the same time, one percent of the quantity is sampled for inspection (i.e. one hundred samples are randomly sampled for inspection) so as to control the quality of the product. After the sampling inspection is qualified, the product can be stored in the warehouse or transported for packaging and delivery.

[0049] Third step: first, the operator normally closes the device, then the operator checks whether the fixation between each component of the device is normal, and then replaces and repairs the parts inside the device which are seriously aged and worn.

[0050] Finally should be explained a few points are: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad, can be mechanical or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0051] Second: the present application discloses the embodiment in the drawing, only relates to the structure involved in the present application, other structures can refer to the usual design, in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other;

[0052] Finally: the above only for the preferred embodiment of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A manufacturing equipment for an environmentally friendly adhesive for plywood, comprising a fixed base plate (1), wherein support plates (2) are inlaid and installed on both the left and right ends of one side of the top of the fixed base plate (1), and a support side frame (3) is fixedly installed on one side of the top of the fixed base plate (1), wherein a fixed plate (4) is integrally formed on the side of the support side frame (3), characterized in that: The fixed plate (4) has a fixed sleeve plate (5) inside, and the top of the fixed base plate (1) is detachably equipped with a protective component (6). The fixed sleeve (5) is fixedly sleeved with a fixed cavity (7), and the fixed cavity (7) is detachably installed with a guide plate structure (8). The top of the fixed base plate (1) is fixedly installed with a heating device (9). The bottom end face of the fixed cavity (7) is detachably fitted with a fixed cavity (7). The top of the fixed base plate (1) is provided with a fixed threaded hole (11). The top of the fixed cavity (7) is connected to a fixed feed pipe (12). The bottom end face of the fixed cavity (7) is provided with a discharge port (13). The guide plate structure (8) includes a fixed guide plate (81), a fixed mounting plate (82) is detachably fitted on the top of the fixed guide plate (81), and arc-shaped side plates (83) are fixedly installed on the left and right sides of the bottom end face of the fixed mounting plate (82). A limiting groove (84) is opened at the bottom end of the fixed mounting plate (82), and an adapting arc plate (85) is fixedly sleeved on the bottom surface of the fixed mounting plate (82) and on one side of the arc-shaped side plate (83). The arc of the adapting arc plate (85) and the arc-shaped side plate (83) are mutually adapted. The heating device (9) includes a controller (91), a fixed base (92) is fixedly installed at the bottom of the controller (91), a display screen (93) is electrically connected to the side of the controller (91), a connecting line (95) is electrically connected to one side of the controller (91), and a heating winding wire (94) is electrically connected to the other side of the connecting line (95). The surface of the heating winding wire (94) is in contact with the bottom outside of the fixed cavity (7). The heating winding wire (94) is spirally distributed and wound to the bottom end of the fixed cavity (7). There are three fixed guide plates (81). The three fixed guide plates (81) are sequentially sleeved on the bottom end of the fixed mounting plate (82). The fixed guide plates (81) and the fixed cavity (7) are designed in parallel. The outer surface of the fixed guide plates (81) is smooth. The shape of the arc-shaped side plate (83) and the matching arc-shaped plate (85) is adapted to the top shape of the fixed cavity (7). The outer surface of the arc-shaped side plate (83) and the matching arc-shaped plate (85) is set as a rough surface structure.

2. The equipment for producing environmentally friendly adhesives for plywood according to claim 1, characterized in that: The protective component (6) includes a fixed side plate (61), a fixed slide block (62) is integrally formed on the side of the fixed side plate (61), a connecting collar plate (63) is slidably fitted on one side of the fixed slide block (62), and a fixed slide groove (64) is opened on the side of the connecting collar plate (63) near the fixed slide block (62).

3. The equipment for producing environmentally friendly adhesives for plywood according to claim 2, characterized in that: The bottom end of the connecting ring plate (63) is integrally formed with a fixed connecting plate (65). A fixed screw hole (66) is provided on the other side of the fixed connecting plate (65). A fastening bolt (67) is installed in the internal thread of the fixed screw hole (66). The bottom end of the fastening bolt (67) passes through the internal surface of the fixed screw hole (66) and extends to the internal surface of the fixed thread hole (11), and is installed with the internal thread of the fixed thread hole (11).

4. The equipment for producing environmentally friendly adhesives for plywood according to claim 1, characterized in that: The insulation component (10) includes a first fixed insulation plate (101), a second fixed insulation plate (102) is detachably fitted on one side of the first fixed insulation plate (101), and a fixing through hole (103) is provided on the side of both the first fixed insulation plate (101) and the second fixed insulation plate (102), and an installation sleeve plate (104) is detachably fitted on the side of both the first fixed insulation plate (101) and the second fixed insulation plate (102).

5. The equipment for producing environmentally friendly adhesives for plywood according to claim 4, characterized in that: The top left and right sides of the mounting plate (104) are provided with embedded round holes (105), and the inside of the embedded round holes (105) can be detachably fitted with a limiting shaft (107). The inner sidewalls of the first fixed insulation plate (101) and the second fixed insulation plate (102) are provided with fixed thread grooves (106). The first fixed insulation plate (101) and the second fixed insulation plate (102) are made of high temperature resistant material.

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