An injection mold for the production of a motorhome dining table

Abstract

The present invention discloses an injection mold for the production of motorhome dining tables, which relates to the technical field of injection molds and includes a base. It also includes a protection device. Among them, a lower mold is fixedly installed on the top of the base, a cooling pipe is fixedly installed on the surface of the lower mold, a placement rack is fixedly installed on the top of the base, a placement groove is formed on the surface of the placement rack, a placement rod is fixedly installed at the bottom of the inner wall of the placement groove, a displacement device is arranged on the circumferential surface of the placement rod, a placement frame is fixedly installed on the side of the displacement device away from the placement rack, and a support rod slidably penetrates through the inner and outer walls of the placement frame. The movement of the placement plate drives the upper mold and the injection pipe to offset a short distance and not align with the lower mold, preventing the residual liquid plastic in the injection pipe from directly dripping onto the top of the molded plastic product. By avoiding the liquid plastic dripping onto the top of the molded plastic product, the surface quality and appearance of the molded plastic product can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and specifically to an injection mold for the production of motorhome dining tables. Background Art

[0002] An injection mold for the production of motorhome dining tables generally consists of parts such as a mold base, mold moving parts, a cooling system, and a detection device.

[0003] The patent with the patent publication number CN216127647U relates to an injection mold for injection production, including a base. In the middle of the upper side of the base, a lower mold is provided. Above the lower mold, an upper mold is provided. On both the left and right sides of the lower mold, guide columns are fixedly connected. A plurality of arc-shaped grooves are formed in the circumferential side of the guide columns. Through holes are formed in the positions of the upper mold facing the guide columns. A number of balls are arranged inside the through holes. The guide columns are inserted into the through holes, and the balls are in contact connection with the arc-shaped grooves. This patent does not need to control the descent of the upper mold through a screw. It uses a pneumatic method to control the descent and ascent of the upper mold, and restricts the movement of the upper mold through the guide columns and guide holes. The mold closing accuracy is high, and it can effectively prevent misalignment between the upper mold and the lower mold, thereby improving the quality of the finished product. When the upper mold moves up and down, it is limited by the rolling of the balls, and the wear is extremely small, which can effectively ensure the normal service life of the device.

[0004] In the above patent, a pneumatic method is used to control the descent and ascent of the upper mold, and the movement of the upper mold is restricted through the guide columns and guide holes. The mold closing accuracy is high, and it can effectively prevent misalignment between the upper mold and the lower mold, thereby improving the quality of the finished product. When the upper mold moves up and down, it is limited by the rolling of the balls, and the wear is extremely small, which can effectively ensure the normal service life of the device. However, it is difficult to prevent the liquid plastic remaining in the injection pipe from dripping onto the surface of the formed plastic product when taking out the formed plastic product. If liquid plastic drips onto the surface of the formed plastic product, it will cause the top of the formed plastic product to be uneven, which will affect the subsequent spraying or film covering processing effect of the formed plastic product. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an injection mold for the production of motorhome dining tables, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: An injection mold for the production of a motorhome dining table, including a base, further including a protection device. Among them, a lower mold is fixedly installed on the top of the base, a cooling pipe is fixedly installed on the surface of the lower mold, a placement rack is fixedly installed on the top of the base, a placement groove is provided on the surface of the placement rack, a placement rod is fixedly installed at the bottom of the inner wall of the placement groove, a displacement device is arranged on the circumferential surface of the placement rod, a placement frame is fixedly installed on the side of the displacement device away from the placement rack, a support rod slides through the inner and outer walls of the placement frame, a placement plate is fixedly installed on the circumferential surface of the support rod, an upper mold is fixedly installed at the bottom of the placement plate, and an injection pipe is fixedly installed on the top of the placement plate. Among them, the protection device includes a fixed block, a stabilizing frame, a deceleration frame, a deceleration plate, a deceleration hole, and a first L-shaped rod. The support rod moves away from the fixed block under the reaction force of the extrusion fixed block. The movement of the support rod drives the movement of the placement plate, and the movement of the placement plate drives the upper mold and the injection pipe to shift a short distance and not align with the lower mold, preventing the residual liquid plastic in the injection pipe from directly dripping onto the top of the formed plastic product. The fixed block is fixedly installed on the side of the placement rack close to the placement plate, the stabilizing frame is fixedly installed on the side of the support rod away from the fixed block, the deceleration frame is fixedly installed on the top of the placement frame, the deceleration plate is slidably installed on the inner wall of the deceleration frame, the deceleration hole is provided on the surface of the deceleration plate, and the first L-shaped rod is fixedly installed on the side of the deceleration plate away from the fixed block.

[0007] According to the above technical solution, a first spring is arranged between the placement frame and the support rod. The first spring can drive the support rod to reset. The end of the first L-shaped rod away from the fixed block contacts the inner wall of the stabilizing frame, and liquid is provided inside the deceleration frame.

[0008] According to the above technical solution, the bottom of the fixed block is set as an inclined surface, the end of the support rod close to the fixed block is set as an inclined surface, a second spring is arranged between the deceleration frame and the deceleration plate. One end of the second spring is arranged on the surface of the deceleration plate and the other end is arranged on the inner wall of the deceleration frame. The second spring can drive the deceleration plate to reset.

[0009] According to the above technical solution, a support device and an auxiliary device are further included. The support device includes an extrusion block, a fixing plate, a sliding rod, a support frame, a support spring, a cambered surface block, and a linkage plate. The support spring is deformed and stores energy under the extrusion of the sliding rod. At the same time, the sliding rod moves towards the upper mold and contacts the bottom of the placement plate to assist in supporting the placement plate and the upper mold. The extrusion block is fixedly installed at the bottom of the placement plate, the fixing plate is fixedly installed on the inner wall of the placement frame, the sliding rod slides through the surface of the fixing plate, the support frame is fixedly installed at both ends of the sliding rod, the support spring is arranged between the fixing plate and the sliding rod, the cambered surface block is fixedly installed on the inner wall of the support frame, and the linkage plate is fixedly installed on the top of the support frame.

[0010] According to the above technical solution, one end of the support frame away from the placement plate is set as an inclined surface, one end of the extrusion block close to the placement plate is set as an arc surface, the arc surface block is elastic, and the movement of the arc surface block hitting the fixed plate generates vibration.

[0011] According to the above technical solution, the auxiliary device includes an auxiliary frame, an auxiliary plate, a second L-shaped rod, an extrusion rod, a sealing frame, a sealing plate, a sealing rod, a sealing hole and a guiding tube. The rubber block deforms to release the seal of the guiding tube. After the seal of the guiding tube is released, the quantitative release agent at the bottom of the sealing frame is sprayed downward on the lower mold and the upper mold through the guiding tube, which is convenient for the subsequent removal of the molded plastic product. The auxiliary frame is fixedly installed on the top of the placement plate, the auxiliary plate is slidably installed on the inner wall of the auxiliary frame, the second L-shaped rod is fixedly installed on the side of the auxiliary plate close to the placement frame, the extrusion rod is fixedly installed on the side of the auxiliary plate away from the placement frame, the sealing frame is fixedly installed on the bottom of the inner wall of the auxiliary frame, the sealing plate is slidably installed on the inner wall of the sealing frame, the sealing rod is fixedly installed on the top of the sealing plate, the sealing hole is opened on the circumferential surface of the sealing frame, and the guiding tube is fixedly installed on the circumferential surface of the sealing frame.

[0012] According to the above technical solution, a third spring is arranged between the auxiliary plate and the auxiliary frame. The third spring can drive the auxiliary plate to reset. The elastic coefficient of the support spring is greater than that of the third spring. The second L-shaped rod contacts the linkage plate, and one end of the extrusion rod away from the auxiliary plate is set as an inclined surface.

[0013] According to the above technical solution, a fourth spring is arranged between the sealing frame and the sealing plate. The fourth spring can drive the sealing plate to reset. The elastic coefficient of the third spring is greater than that of the fourth spring. One end of the sealing rod away from the sealing plate is set as an inclined surface. A rubber block is arranged inside the guiding tube, and a release agent is arranged inside the auxiliary frame.

[0014] The present invention provides an injection mold for the production of a motorhome dining table. It has the following beneficial effects:

[0015] (1) For the injection mold for the production of a motorhome dining table, the movement of the placement plate drives the upper mold and the injection pipe to shift a short distance and not align with the lower mold, preventing the residual liquid plastic in the injection pipe from directly dripping onto the top of the molded plastic product. By avoiding the liquid plastic dripping onto the top of the molded plastic product, the surface quality and appearance of the molded plastic product can be improved. During the demolding process, if the liquid plastic drips onto the surface of the molded plastic product, it will cause defects or unevenness on the surface of the molded plastic product, affecting the aesthetics of the plastic product and the effect of subsequent spraying processing. At the same time, the slow movement of the first L-shaped rod causes the support rod and the stable frame to move slowly. The slow movement of the support rod causes the placement plate and the upper mold to move slowly. The slow movement of the upper mold to align with the lower mold allows the operator to have enough time to ensure that the upper mold and the lower mold can be accurately aligned, avoiding the situation of deviation or incomplete alignment.

[0016] (2) The injection mold used for the production of RV dining tables moves toward the upper mold through the movement of the slide rod to contact the bottom of the placement plate and provide auxiliary support for the placement plate and the upper mold. The auxiliary support can make the subsequent maintenance and replacement of the upper mold more convenient. The operator can perform these operations under safe and stable conditions, avoiding accidents caused by the instability of the upper mold and protecting the safety of the operator. At the same time, the arc block moves and hits the fixed plate to generate vibration. The vibration of the arc block drives the vibration of the support frame. The vibration of the support frame drives the edge of the placement plate to resonate together. There may be overflowed plastic left on the bottom edge of the placement plate. The residue can be loosened from the placement plate through slight vibration and fall off, preventing the residue from contaminating the next batch of injection molded products.

[0017] (3) The injection mold used for the production of RV dining tables is deformed by the rubber block inside the guide tube being squeezed by the quantitative release agent at the bottom of the sealing frame. The deformation of the rubber block releases the seal of the guide tube. After the seal of the guide tube is released, the quantitative release agent at the bottom of the sealing frame is sprayed to the lower mold and the upper mold through the guide tube to facilitate the subsequent removal of the molded plastic products. After solidification, the liquid plastic will adhere to the surface of the upper and lower molds, making demolding difficult. Spraying the release agent can form a thin film before the upper and lower molds are closed, making it easier for the molded plastic products to be separated from the lower mold, thereby improving the demolding efficiency of the molded plastic products. At the same time, excessive release agent will cause quality problems such as uneven surface and increased residue of the molded plastic products. Quantitative and precise spraying can ensure the integrity of the molded plastic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the placement structure of the placement rack and the placement rod of the present invention;

[0020] Figure 3 This is a schematic diagram of the displacement device and placement frame position structure of the present invention;

[0021] Figure 4 For the present invention Figure 3 A schematic diagram of the structure of part A in the middle;

[0022] Figure 5 This is a schematic diagram of the internal structure of the deceleration frame of the present invention;

[0023] Figure 6 This is a schematic diagram of the placement structure of the frame and support rods of the present invention;

[0024] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure of part B;

[0025] Figure 8 This is a schematic diagram of the position structure of the auxiliary plate and the second L-shaped rod of the present invention;

[0026] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the structure of part C in the middle.

[0027] In the figure: 1. base; 2. lower mold; 3. cooling pipe; 4. placement rack; 5. placement rod; 6. displacement device; 7. placement frame; 8. support rod; 9. placement plate; 10. upper mold; 11. injection tube; 12. fixing block; 13. stabilizing frame; 14. deceleration frame; 15. deceleration plate; 16. deceleration hole; 17. No. 1 L-shaped rod; 181. extrusion block; 182. fixing plate; 183. sliding rod; 184. support frame; 185. support spring; 186. arc block; 187. linkage plate; 191. auxiliary frame; 192. auxiliary plate; 193. No. 2 L-shaped rod; 194. extrusion rod; 195. sealing frame; 196. sealing plate; 197. sealing rod; 198. sealing hole; 199. guide tube. DETAILED DESCRIPTION

[0028] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] See also Figures 1-9, an embodiment of the present invention is: an injection mold for the production of a motorhome dining table, including a base 1, and further including a protection device. Among them, a lower mold 2 is fixedly installed on the top of the base 1, a cooling pipe 3 is fixedly installed on the surface of the lower mold 2, a placement rack 4 is fixedly installed on the top of the base 1, a placement groove is provided on the surface of the placement rack 4, a placement rod 5 is fixedly installed at the bottom of the inner wall of the placement groove, a displacement device 6 is arranged on the circumferential surface of the placement rod 5, a placement frame 7 is fixedly installed on the side of the displacement device 6 away from the placement rack 4, a support rod 8 slidably penetrates through the inner and outer walls of the placement frame 7, a placement plate 9 is fixedly installed on the circumferential surface of the support rod 8, an upper mold 10 is fixedly installed at the bottom of the placement plate 9, and an injection pipe 11 is fixedly installed on the top of the placement plate 9. Among them, the protection device includes a fixed block 12, a stabilizing frame 13, a deceleration frame 14, a deceleration plate 15, a deceleration hole 16 and a first L-shaped rod 17. The fixed block 12 is fixedly installed on the side of the placement rack 4 close to the placement plate 9, the stabilizing frame 13 is fixedly installed on the side of the support rod 8 away from the fixed block 12, the deceleration frame 14 is fixedly installed on the top of the placement frame 7, the deceleration plate 15 is slidably installed on the inner wall of the deceleration frame 14, the deceleration hole 16 is provided on the surface of the deceleration plate 15, and the first L-shaped rod 17 is fixedly installed on the side of the deceleration plate 15 away from the fixed block 12. During the demolding process, if the liquid plastic drips on the surface of the formed plastic product, it will cause defects or unevenness on the surface of the formed plastic product, affecting the aesthetics of the plastic product and the effect of subsequent spraying processing.

[0030] A first spring is arranged between the placement frame 7 and the support rod 8. Through the first spring, the support rod 8 can be driven to reset. The end of the first L-shaped rod 17 away from the fixed block 12 contacts the inner wall of the stabilizing frame 13. There is liquid inside the deceleration frame 14. The slow movement of the upper mold 10 to align with the lower mold 2 allows the operator to have enough time to ensure that the upper mold 10 and the lower mold 2 can be accurately aligned, avoiding the situation of deviation or incomplete alignment.

[0031] The bottom of the fixed block 12 is set as an inclined surface, the end of the support rod 8 close to the fixed block 12 is set as an inclined surface, a second spring is arranged between the deceleration frame 14 and the deceleration plate 15, one end of the second spring is arranged on the surface of the deceleration plate 15 and the other end is arranged on the inner wall of the deceleration frame 14. Through the second spring, the deceleration plate 15 can be driven to reset.

[0032] During the operation of this embodiment: The displacement device 6 operates to move downward, driving the placement frame 7 to move downward. The downward movement of the placement frame 7 drives the support rod 8 to move downward. The downward movement of the support rod 8 drives the placement plate 9 to move. The movement of the placement plate 9 drives the upper mold 10 to move downward to contact and closely fit with the lower mold 2. After the upper mold 10 and the lower mold 2 are closely fitted, the molten plastic melt is injected into the space between the upper mold 10 and the lower mold 2 through the injection pipe 11. After the plastic cools and solidifies in the mold, the displacement device 6 operates to move upward. The upward movement of the displacement device 6 drives the placement frame 7, the support rod 8, and the upper mold 10 to move upward while an operator takes out the formed plastic product. The upward movement of the support rod 8 contacts the fixed block 12 and exerts pressure on the fixed block 12. At the same time, the support rod 8 receives the reaction force of the fixed block 12 being squeezed and moves away from the fixed block 12. The movement of the support rod 8 away from the fixed block 12 squeezes the first spring. The first spring is deformed and stores energy under the extrusion of the support rod 8. At the same time, the movement of the support rod 8 drives the placement plate 9 to move. The movement of the placement plate 9 drives the upper mold 10 and the injection pipe 11 to shift a short distance and not align with the lower mold 2, preventing the residual liquid plastic in the injection pipe 11 from directly dripping onto the top of the formed plastic product. At the same time, the movement of the support rod 8 away from the fixed block 12 drives the stabilizing frame 13 to move. The movement of the stabilizing frame 13 contacts the first L-shaped rod 17 and drives the first L-shaped rod 17 to move away from the fixed block 12. The movement of the first L-shaped rod 17 drives the deceleration plate 15 to move. The movement of the deceleration plate 15 causes the liquid inside the deceleration frame 14 to only flow slowly through the deceleration holes 16. The fact that the liquid inside the deceleration frame 14 can only flow slowly causes the deceleration plate 15 to move slowly. The slow movement of the deceleration plate 15 causes the first L-shaped rod 17 to move slowly. The slow movement of the first L-shaped rod 17 causes the support rod 8 and the stabilizing frame 13 to move slowly. The slow movement of the support rod 8 causes the placement plate 9 and the upper mold 10 to move slowly. When the displacement device 6 operates downward, it will drive the placement frame 7 and the support rod 8 to move downward. The downward movement of the support rod 8 will disengage from the contact with the fixed block 12 and move back toward the fixed block 12 under the elastic force of the first spring. The reset of the support rod 8 drives the placement plate 9 and the upper mold 10 to move back and align with the lower mold 2.

[0033] Please refer to Figures 1-9, on the basis of the above embodiments, in another embodiment of the present invention, it further includes a support device and an auxiliary device. The support device includes a pressing block 181, a fixing plate 182, a sliding rod 183, a support frame 184, a support spring 185, a cambered surface block 186 and a linkage plate 187. The pressing block 181 is fixedly installed at the bottom of the placing plate 9, the fixing plate 182 is fixedly installed on the inner wall of the placing frame 7, the sliding rod 183 slidably penetrates the surface of the fixing plate 182, the support frame 184 is fixedly installed at both ends of the sliding rod 183, the support spring 185 is arranged between the fixing plate 182 and the sliding rod 183, the cambered surface block 186 is fixedly installed on the inner wall of the support frame 184, and the linkage plate 187 is fixedly installed at the top of the support frame 184. Auxiliary support can make the subsequent maintenance and replacement of the upper mold 10 more convenient. Operators can perform these operations under safe and stable conditions, avoiding accidents caused by the instability of the upper mold 10.

[0034] One end of the support frame 184 away from the placing plate 9 is set as an inclined surface, one end of the pressing block 181 close to the placing plate 9 is set as a cambered surface, the cambered surface block 186 is elastic, and the movement and impact of the cambered surface block 186 on the fixing plate 182 generate vibration. Through slight vibration, the residual and overflowed plastic can be loosened from the placing plate 9 and made to fall, preventing the residues from contaminating the next batch of injection-molded products.

[0035] The auxiliary device includes an auxiliary frame 191, an auxiliary plate 192, a second L-shaped rod 193, a pressing rod 194, a sealing frame 195, a sealing plate 196, a sealing rod 197, a sealing hole 198 and a guiding tube 199. The auxiliary frame 191 is fixedly installed at the top of the placing plate 9, the auxiliary plate 192 is slidably installed on the inner wall of the auxiliary frame 191, the second L-shaped rod 193 is fixedly installed on the side of the auxiliary plate 192 close to the placing frame 7, the pressing rod 194 is fixedly installed on the side of the auxiliary plate 192 away from the placing frame 7, the sealing frame 195 is fixedly installed at the bottom of the inner wall of the auxiliary frame 191, the sealing plate 196 is slidably installed on the inner wall of the sealing frame 195, the sealing rod 197 is fixedly installed at the top of the sealing plate 196, the sealing hole 198 is opened on the circumferential surface of the sealing frame 195, and the guiding tube 199 is fixedly installed on the circumferential surface of the sealing frame 195. Spraying the release agent can form a thin film before the mold is closed, making it easier for the molded plastic products to be separated from the lower mold 2, improving the demolding efficiency of the molded plastic products, and the quantitatively accurate spraying can further ensure the integrity of the molded plastic products.

[0036] A third spring is arranged between the auxiliary plate 192 and the auxiliary frame 191, and the third spring can drive the auxiliary plate 192 to reset. The elastic coefficient of the support spring 185 is greater than that of the third spring. The second L-shaped rod 193 contacts the linkage plate 187, and one end of the pressing rod 194 away from the auxiliary plate 192 is set as an inclined surface.

[0037] A fourth spring is provided between the sealing frame 195 and the sealing plate 196. The fourth spring can drive the sealing plate 196 to reset. The elastic coefficient of the third spring is greater than that of the fourth spring. The end of the sealing rod 197 away from the sealing plate 196 is provided with an inclined surface. A rubber block is arranged inside the guide tube 199, and a release agent is arranged inside the auxiliary frame 191.

[0038] When this embodiment works: The placement plate 9 moves away from the fixed block 12, driving the extrusion block 181 to move. The extrusion block 181 moves and contacts the support frame 184 and extrudes the support frame 184. The support frame 184 moves closer to the upper mold 10 under the extrusion of the extrusion block 181. The support frame 184 moves closer to the upper mold 10, driving the sliding rod 183 and the linkage plate 187 to move. The sliding rod 183 moves and extrudes the support spring 185. The support spring 185 deforms and stores energy under the extrusion of the sliding rod 183. At the same time, the sliding rod 183 moves closer to the upper mold 10 and contacts the bottom of the placement plate 9 to assist in supporting the placement plate 9 and the upper mold 10. At the same time, the support frame 184 moves closer to the upper mold 10, driving the arc-shaped block 186 to move. The arc-shaped block 186 moves and impacts the fixed plate 182 to generate vibration. The arc-shaped block 186 vibrates, driving the support frame 184 to vibrate. The support frame 184 vibrates, driving the edge of the placement plate 9 to resonate together.

[0039] The linkage plate 187 moves closer to the upper mold 10, contacts the second L-shaped rod 193 and extrudes the second L-shaped rod 193 to move closer to the sealing frame 195. The second L-shaped rod 193 moves closer to the sealing frame 195, driving the auxiliary plate 192 to move. The auxiliary plate 192 moves, driving the extrusion rod 194 to move. The extrusion rod 194 moves and contacts the sealing rod 197 and extrudes the sealing rod 197. The sealing rod 197 moves downward under the extrusion of the extrusion rod 194. The sealing rod 197 moves downward, driving the sealing plate 196 to move downward. The sealing plate 196 moves downward to disengage from the contact with the sealing hole 198 and seals a part of the space at the bottom of the sealing frame 195 and the release agent. At the same time, the sealing plate 196 continues to move downward to extrude the quantitative release agent at the bottom of the sealing frame 195. The quantitative release agent at the bottom of the sealing frame 195 is extruded by the sealing plate 196 to extrude the rubber block inside the guide tube 199. The rubber block inside the guide tube 199 deforms under the extrusion of the quantitative release agent at the bottom of the sealing frame 195. The rubber block deforms to release the seal of the guide tube 199. After the seal of the guide tube 199 is released, the quantitative release agent at the bottom of the sealing frame 195 is sprayed downward through the guide tube 199 onto the lower mold 2 and the upper mold 10 to facilitate the subsequent removal of the formed plastic product.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for the production of a motorhome dining table, comprising a base, characterized in that: It also includes a protection device, a support device and an auxiliary device; A lower mold is fixedly installed on the top of the base. A cooling pipe is fixedly installed on the surface of the lower mold. A placement rack is fixedly installed on the top of the base. A placement groove is formed on the surface of the placement rack. A placement rod is fixedly installed at the bottom of the inner wall of the placement groove. A displacement device is arranged on the circumferential surface of the placement rod. A placement frame is fixedly installed on the side of the displacement device away from the placement rack. A support rod slidably penetrates through the inner and outer walls of the placement frame. A placement plate is fixedly installed on the circumferential surface of the support rod. An upper mold is fixedly installed at the bottom of the placement plate. An injection pipe is fixedly installed on the top of the placement plate; The protection device includes a fixed block, a stabilizing frame, a deceleration frame, a deceleration plate, a deceleration hole and a first L-shaped rod. The fixed block is fixedly installed on the side of the placement rack close to the placement plate. The stabilizing frame is fixedly installed on the side of the support rod away from the fixed block. The deceleration frame is fixedly installed on the top of the placement frame. The deceleration plate is slidably installed on the inner wall of the deceleration frame. The deceleration hole is formed on the surface of the deceleration plate. The first L-shaped rod is fixedly installed on the side of the deceleration plate away from the fixed block; The support device includes a pressing block, a fixing plate, a sliding rod, a support frame, a support spring, a cambered surface block and a linkage plate. The pressing block is fixedly installed at the bottom of the placement plate. The fixing plate is fixedly installed on the inner wall of the placement frame. The sliding rod slidably penetrates through the surface of the fixing plate. The support frame is fixedly installed at both ends of the sliding rod. The support spring is arranged between the fixing plate and the sliding rod. The cambered surface block is fixedly installed on the inner wall of the support frame. The linkage plate is fixedly installed on the top of the support frame; The auxiliary device includes an auxiliary frame, an auxiliary plate, a second L-shaped rod, a pressing rod, a sealing frame, a sealing plate, a sealing rod, a sealing hole and a guiding pipe. The auxiliary frame is fixedly installed on the top of the placement plate. The auxiliary plate is slidably installed on the inner wall of the auxiliary frame. The second L-shaped rod is fixedly installed on the side of the auxiliary plate close to the placement frame. The pressing rod is fixedly installed on the side of the auxiliary plate away from the placement frame. The sealing frame is fixedly installed at the bottom of the inner wall of the auxiliary frame. The sealing plate is slidably installed on the inner wall of the sealing frame. The sealing rod is fixedly installed on the top of the sealing plate. The sealing hole is formed on the circumferential surface of the sealing frame. The guiding pipe is fixedly installed on the circumferential surface of the sealing frame; A first spring is arranged between the placement frame and the support rod. One end of the first L-shaped rod away from the fixed block contacts the inner wall of the stabilizing frame. A liquid is arranged inside the deceleration frame; The bottom of the fixed block is set to be inclined. One end of the support rod close to the fixed block is set to be inclined. A second spring is arranged between the deceleration frame and the deceleration plate; One end of the support frame away from the placement plate is set to be inclined. One end of the pressing block close to the placement plate is set to be cambered. The cambered surface block is elastic.

2. The injection mold for the production of a motorhome dining table according to claim 1, characterized in that: A third spring is arranged between the auxiliary plate and the auxiliary frame. The second L-shaped rod contacts the linkage plate. One end of the pressing rod away from the auxiliary plate is set to be inclined.

3. The injection mold for producing a motorhome dining table according to claim 2, characterized in that: A fourth spring is arranged between the sealing frame and the sealing plate. One end of the sealing rod away from the sealing plate is set to be inclined. A rubber block is arranged inside the guiding pipe. A demolding agent is arranged inside the auxiliary frame.

Images