A mold cavity pretreatment device to prevent rubber samples from sticking together

Abstract

This utility model discloses a mold cavity pretreatment device for preventing rubber sample adhesion, belonging to the technical field of rubber testing auxiliary equipment. It includes a treatment table, an atomizing spraying mechanism for spraying a release agent onto the mold cavity mounted on the upper surface of the treatment table, a drying mechanism for drying the release agent, and a translation mechanism arranged along the long side of the treatment table. A placement plate is fixedly connected to the translation mechanism, and a clamping mechanism for fixing the mold is provided on the placement plate. The clamping mechanism includes a first motor installed on one side of the placement plate. This device, by setting up the translation mechanism, atomizing spraying mechanism, and drying mechanism, can achieve anti-adhesion pretreatment of the mold cavity. Compared with manual brushing, it has a higher degree of automation, saves manpower, has higher work efficiency, and provides better pretreatment effect to prevent rubber sample adhesion in the mold cavity.

Description

Technical Field

[0001] This utility model belongs to the technical field of rubber testing auxiliary equipment, specifically a mold cavity pretreatment device to prevent rubber samples from sticking together. Background Technology

[0002] Because rubber materials contain a large number of allyl bonds in their molecular structure and have strong adhesion and temperature sensitivity, they are prone to sticking to the mold cavity surface during the compression molding process. This problem mainly stems from two aspects: first, the rubber molecular chains form physical adsorption or chemical bonding with the mold cavity surface; second, the increased molding temperature leads to increased rubber viscosity, and the insufficiently cross-linked molecular chains are prone to remain on the mold cavity surface.

[0003] However, in the existing technology, the mold is pretreated by manually brushing on the release agent to prevent the rubber sample from sticking to the mold cavity. However, manual brushing has problems such as uneven application, large consumption of release agent, and easy introduction of impurities. In addition, the mold with the release agent applied needs to wait for natural drying, which reduces production efficiency. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides the following technical solution: a mold cavity pretreatment device for preventing rubber samples from sticking together, comprising a treatment table, an atomizing spraying mechanism for spraying a release agent onto the upper surface of the treatment table, a drying mechanism for drying the release agent onto the upper surface of the treatment table, a translation mechanism arranged along the long side of the treatment table onto the upper surface of the treatment table, a placement plate shell fixedly connected to the translation mechanism, and a clamping mechanism for fixing the mold on the placement plate shell; The clamping mechanism includes a first motor installed on one side of the storage plate shell. A worm gear is fixedly connected to the main shaft end of the first motor. A worm wheel that meshes with the worm gear is rotatably connected to the center of the inner wall of the storage plate shell via a rotating shaft. A double-headed cam is fixedly connected to the rotating shaft. Two parallel pull rods are movably connected to the two ends of the double-headed cam. A movable frame is hinged to the far end of each of the two pull rods. Two U-shaped frames are fixedly connected to one side of each movable frame. Both U-shaped frames extend through to the top of the storage plate shell and are fixedly connected to a clamping plate.

[0005] As a further embodiment of this utility model: the translation mechanism includes a bottom shell fixed to the upper surface of the processing table, a second motor fixedly connected to one end of the bottom shell, a lead screw fixedly connected to the main shaft end of the second motor, a nut strip threaded onto the lead screw, movable sleeves fixedly connected to both ends of the nut strip, two connecting blocks fixedly connected to the upper surface of each movable sleeve, two sliding openings opened on the upper surface of the processing table, and each set of connecting blocks passing through one sliding opening and fixedly connected to the storage plate shell.

[0006] As a further embodiment of this utility model: the inner wall of the bottom shell is fixedly connected to two symmetrically arranged guide rods, and each of the movable sleeves is respectively sleeved on one guide rod and slidably connected to it.

[0007] As a further embodiment of this utility model: the atomizing spraying mechanism includes two vertically symmetrically fixed supports on the upper surface of the processing table. The upper ends of the two supports are fixedly connected to an electric slide rail arranged along the short side of the processing table. One end of the electric slide rail is fixedly connected to a vertically arranged first push rod, and the lower end of the first push rod is fixedly connected to an atomizing nozzle.

[0008] As a further embodiment of this utility model: the drying mechanism includes a concave frame fixed on the upper surface of the processing table, a vertically arranged second push rod fixedly connected to the upper surface of the concave frame, and a hot air fan fixedly connected to the lower end of the second push rod.

[0009] As a further embodiment of this utility model: a control panel is installed on one side of the processing table, and the control panel is electrically connected to the atomizing spraying mechanism, the drying mechanism, the translation mechanism and the clamping mechanism.

[0010] As a further embodiment of this utility model, the double-headed cam is located below the worm gear with a gap between them.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by setting up a translation mechanism, an atomizing spraying mechanism, and a drying mechanism, can drive the lead screw to rotate when the second motor is started. At this time, the nut strip is forced to move, which can drive the two moving sleeves to move, and then drive the placement plate shell fixed to the connecting block to move, thereby realizing the displacement and feeding function of the mold. The electric slide rail can control the reciprocating lateral movement of the atomizing nozzle, which can realize the comprehensive and uniform spraying of the mold cavity, thereby improving the subsequent anti-adhesion effect on the rubber sample and facilitating demolding. The hot air blower can dry the release agent film in the mold cavity, improving the drying efficiency. Compared with the manual brushing method, this device has a higher degree of automation, saves manpower, has a fast working efficiency, and has a better pretreatment effect on preventing the rubber sample from sticking in the mold cavity.

[0012] 2. In this utility model, by setting up a clamping mechanism, the mold is placed on the storage plate shell, and the first motor is started. Since the worm and worm wheel mesh, the double-headed cam fixed to the rotating shaft can be driven to rotate, thereby pulling the two pull rods to swing. At this time, the two moving frames can be driven to move towards each other, thereby driving the two clamping plates to press against the two sides of the mold to clamp and position it, ensuring the stability of subsequent mold release agent spraying and drying processing of the mold cavity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a three-dimensional enlarged structural diagram of the bottom shell and the storage plate shell of this utility model; Figure 3 This is a top cross-sectional view of the storage panel shell of this utility model; Figure 4 This is a three-dimensional cross-sectional view of the bottom shell of this utility model.

[0014] The correspondence between the labels and component names in the attached figures is as follows: 1. Processing table; 2. Shelf housing; 3. First motor; 4. Worm gear; 5. Rotating shaft; 6. Worm wheel; 7. Double-headed cam; 8. Pull rod; 9. Moving frame; 10. U-shaped frame; 11. Clamping plate; 12. Bottom shell; 13. Second motor; 14. Lead screw; 15. Nut strip; 16. Moving sleeve; 17. Connecting block; 18. Guide rod; 19. Stand; 20. Electric slide rail; 21. First push rod; 22. Atomizing nozzle; 23. Concave frame; 24. Second push rod; 25. Hot air blower; 26. Control panel. Detailed Implementation

[0015] Please see Figures 1-4 This embodiment provides a mold cavity pretreatment device for preventing rubber samples from sticking together. It includes a treatment table 1, an atomizing spraying mechanism for spraying a release agent onto the mold cavity is installed on the upper surface of the treatment table 1, a drying mechanism for drying the release agent is installed on the upper surface of the treatment table 1, and a translation mechanism is installed on the upper surface of the treatment table 1 along the long side of the treatment table 1. A placement plate shell 2 is fixedly connected to the translation mechanism. The placement plate shell 2 is provided with a clamping mechanism for fixing the mold. It can uniformly spray the release agent onto the mold cavity of the mold for rubber samples and perform drying treatment. Compared with the manual brushing method, this device has a higher degree of automation, saves manpower, has a faster working efficiency, and has a better pretreatment effect on preventing rubber samples from sticking together in the mold cavity. The clamping mechanism includes a first motor 3 installed on one side of the storage plate shell 2. A worm gear 4 is fixedly connected to the main shaft end of the first motor 3. A worm wheel 6, which meshes with the worm gear 4, is rotatably connected to the center of the inner wall of the storage plate shell 2 via a rotating shaft 5. A double-headed cam 7 is fixedly connected to the rotating shaft 5. Two parallel pull rods 8 are movably connected to the two ends of the double-headed cam 7. A movable frame 9 is hinged to the far end of each of the two pull rods 8. Two U-shaped frames 10 are fixedly connected to one side of each movable frame 9. The two U-shaped frames 10 extend through the top of the storage plate shell 2 and are fixedly connected to clamping plates 11. When the mold is placed on the storage plate shell 2 and the first motor 3 is started, the worm gear 4 meshes with the worm wheel 6, which drives the double-headed cam 7 fixed to the rotating shaft 5 to rotate, thereby pulling the two pull rods 8 to swing. At this time, the two movable frames 9 can be moved towards each other, thereby driving the two clamping plates 11 to press against the two sides of the mold to clamp and position it, ensuring the stability of subsequent mold release agent spraying and drying processing of the mold cavity.

[0016] like Figure 2 and Figure 4 As shown: The translation mechanism includes a base shell 12 fixed to the upper surface of the processing table 1. A second motor 13 is fixedly connected to one end of the base shell 12. A lead screw 14 is fixedly connected to the spindle end of the second motor 13. A nut strip 15 is threaded onto the lead screw 14. Movable sleeves 16 are fixedly connected to both ends of the nut strip 15. Two connecting blocks 17 are fixedly connected to the upper surface of each movable sleeve 16. Two sliding openings are opened on the upper surface of the processing table 1. Each set of connecting blocks 17 passes through one sliding opening and is fixedly connected to the storage plate shell 2. When the second motor 13 is started, it can drive the lead screw 14 to rotate. Since the lead screw 14 is threadedly connected to the nut strip 15, the nut strip 15 is forced to move, which can drive the two movable sleeves 16 to move, and then drive the storage plate shell 2 fixed to the connecting blocks 17 to move, thereby realizing the displacement and feeding function of the mold, so as to facilitate the subsequent spraying and drying of the mold cavity with the release agent.

[0017] like Figure 4 As shown: The inner wall of the bottom shell 12 is fixedly connected to two symmetrically arranged guide rods 18. Each movable sleeve 16 is respectively sleeved on one guide rod 18 and slidably connected to it, so that the movable sleeve 16 maintains linear displacement.

[0018] like Figure 1As shown: The atomizing spraying mechanism includes two vertically symmetrically fixed supports 19 on the upper surface of the processing table 1. The upper ends of the two supports 19 are fixedly connected to an electric slide rail 20 arranged along the short side of the processing table 1. One end of the electric slide rail 20 is fixedly connected to a vertically arranged first push rod 21 to control the height. The lower end of the first push rod 21 is fixedly connected to an atomizing nozzle 22. The atomizing nozzle 22 is externally connected to a release agent spraying device. The electric slide rail 20 can control the reciprocating horizontal movement of the atomizing nozzle 22. With the help of the translation mechanism to adjust the position of the placement plate shell 2, it can achieve comprehensive and uniform spraying of the mold cavity, thereby improving the anti-adhesion effect of the rubber sample and facilitating demolding.

[0019] like Figure 1 As shown: The drying mechanism includes a concave frame 23 fixed on the upper surface of the processing table 1. A vertically arranged second push rod 24 is fixedly connected to the upper surface of the concave frame 23 to control the height. A hot air blower 25 is fixedly connected to the lower end of the second push rod 24. When the mold sprayed with release agent passes under the hot air blower 25, the release agent film in the mold cavity can be dried to improve the drying efficiency.

[0020] like Figure 1 As shown: A control panel 26 is installed on one side of the processing table 1. The control panel 26 is electrically connected to the atomizing spraying mechanism, the drying mechanism, the translation mechanism and the clamping mechanism. The control panel 26 uses an STM32F103 microcontroller as the control core. The peripheral circuit includes a power module, a signal acquisition module and a drive module. It is easy to operate and is powered by an external power supply. The circuit involved is existing technology and can be fully implemented by those skilled in the art, so there is no need to elaborate.

[0021] like Figure 3 As shown: The double-headed cam 7 is located below the worm gear 6 and there is a gap between them to prevent friction between the worm 4 and the double-headed cam 7.

[0022] Working principle: When using this device to pre-treat the mold cavity of a rubber sample testing mold to prevent adhesion, the mold is placed on the placement plate 2, and the first motor 3 is started. Since the worm 4 and worm wheel 6 mesh, the double-headed cam 7 fixed to the rotating shaft 5 can be rotated, which in turn pulls the two pull rods 8 to swing. At this time, the two moving frames 9 can be moved towards each other, which in turn drives the two clamping plates 11 to press against both sides of the mold to clamp and position it, ensuring the stability of subsequent mold release agent spraying and drying processing of the mold cavity. Then, when the second motor 13 is started, the lead screw 14 can be rotated. Since the lead screw 14 is threaded with the nut strip 15... Next, the nut strip 15 is forced to move, which can drive the two moving sleeves 16 to move, and then drive the placement plate shell 2 fixed to the connecting block 17 to move, thereby realizing the displacement and feeding function of the mold, so as to facilitate the subsequent spraying and drying of the mold cavity with the release agent; the electric slide rail 20 can control the reciprocating horizontal movement of the atomizing nozzle 22, and cooperate with the translation mechanism to adjust the position of the placement plate shell 2, so as to achieve comprehensive and uniform spraying of the mold cavity, thereby improving the anti-adhesion effect of the rubber sample and facilitating demolding; when the mold sprayed with the release agent passes under the hot air blower 25, the release agent film in the mold cavity can be dried, improving the drying efficiency.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mold cavity pretreatment device for preventing rubber samples from sticking together, comprising a treatment table (1), characterized in that, The upper surface of the processing table (1) is equipped with an atomizing spraying mechanism for spraying release agent onto the mold cavity, and a drying mechanism for drying the release agent is installed on the upper surface of the processing table (1). A translation mechanism is installed on the upper surface of the processing table (1) along the long side of the processing table (1). A storage plate shell (2) is fixedly connected to the translation mechanism. A clamping mechanism for fixing the mold is provided on the storage plate shell (2). The clamping mechanism includes a first motor (3) installed on one side of the storage plate shell (2). The main shaft end of the first motor (3) is fixedly connected to a worm gear (4). At the center of the inner wall of the storage plate shell (2), a worm wheel (6) is rotatably connected to the worm gear (4) via a rotating shaft (5). A double-headed cam (7) is fixedly connected on the rotating shaft (5). Two parallel pull rods (8) are movably connected to both ends of the double-headed cam (7). A movable frame (9) is hinged to the far end of the two pull rods (8). Two U-shaped frames (10) are fixedly connected to one side of each movable frame (9). The two U-shaped frames (10) extend through to the top of the storage plate shell (2) and are fixedly connected to a clamping plate (11).

2. The mold cavity pretreatment device for preventing rubber sample adhesion according to claim 1, characterized in that, The translation mechanism includes a bottom shell (12) fixed on the upper surface of the processing table (1). A second motor (13) is fixedly connected to one end of the bottom shell (12). A lead screw (14) is fixedly connected to the spindle end of the second motor (13). A nut strip (15) is threaded onto the lead screw (14). A movable sleeve (16) is fixedly connected to both ends of the nut strip (15). Two connecting blocks (17) are fixedly connected to the upper surface of each movable sleeve (16). Two sliding openings are opened on the upper surface of the processing table (1). Each set of connecting blocks (17) passes through one sliding opening and is fixedly connected to the storage plate shell (2).

3. The mold cavity pretreatment device for preventing rubber sample adhesion according to claim 2, characterized in that, The inner wall of the bottom shell (12) is fixedly connected to two symmetrically arranged guide rods (18), and each of the movable sleeves (16) is respectively sleeved on one guide rod (18) and slidably connected to it.

4. The mold cavity pretreatment device for preventing rubber sample adhesion according to claim 1, characterized in that, The atomizing spraying mechanism includes two vertically symmetrically fixed supports (19) on the upper surface of the processing table (1). The upper ends of the two supports (19) are fixedly connected to an electric slide rail (20) arranged along the short side of the processing table (1). One end of the electric slide rail (20) is fixedly connected to a vertically arranged first push rod (21), and the lower end of the first push rod (21) is fixedly connected to an atomizing nozzle (22).

5. The mold cavity pretreatment device for preventing rubber sample adhesion according to claim 1, characterized in that, The drying mechanism includes a concave frame (23) fixed on the upper surface of the processing table (1), and a vertically arranged second push rod (24) is fixedly connected to the upper surface of the concave frame (23), and a hot air blower (25) is fixedly connected to the lower end of the second push rod (24).

6. The mold cavity pretreatment device for preventing rubber sample adhesion according to claim 1, characterized in that, A control panel (26) is installed on one side of the processing table (1), and the control panel (26) is electrically connected to the atomizing spraying mechanism, the drying mechanism, the translation mechanism and the clamping mechanism.

7. The mold cavity pretreatment device for preventing rubber sample adhesion according to claim 1, characterized in that, The double-headed cam (7) is located below the worm gear (6) with a gap between them.

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