Automatic surface polishing device for injection mold

Abstract

The utility model relates to the technical field of injection mold machining, in particular to an automatic injection mold surface polishing device which comprises a machine body, a clamping assembly is arranged at the bottom of the inner side of the machine body, an angle adjusting assembly is arranged at the top of the inner side of the machine body, and a polishing head is driven by the adjusting assembly to rotate with a connecting shaft as the axis. The angle of the polishing head is adjusted, so that polishing of injection molds in different shapes is met, the angle of the injection mold does not need to be changed and fixed again, a large amount of time is saved, and the efficiency of the whole polishing work is improved; the four clamping blocks move synchronously to fix the injection mold, and the four clamping blocks are distributed at equal angles, so that the injection mold can be fixed at the same time in the front, back, left and right directions, and compared with a traditional spring fixing mode, the structure can effectively prevent the injection mold from deviating and loosening when the injection mold is polished.

Description

Technical Field

[0001] The utility model relates to the technical field of injection mold processing, in particular to an automatic device for polishing the surface of an injection mold. Background Art

[0002] Injection molds are tools used to form the desired shape in the processing of plastics or other materials during the injection molding process. They are usually made of metal, such as steel or aluminum, and have components including mold cavities, mold cores and ejectors. Injection molds are widely used in industrial production to manufacture various plastic products, such as parts, components, containers, packaging, etc. When producing injection molds, their surfaces need to be polished to avoid burrs on the mold surface leaving marks on its surface when producing plastic molds. Therefore, we have launched an injection mold surface polishing automation device.

[0003] The existing patent (publication number: CN220481313U) discloses a polishing device for injection mold production, including a base, characterized in that: a support column is fixedly installed at the lower end of the base, a shell is fixedly installed at the upper end of the base, a top plate is fixedly installed at the upper end of the shell, a clamping plate is fixedly installed at the upper end of the base, a cylinder is fixedly installed on the outer side of the clamping plate, a gasket is fixedly installed on the movable end of the cylinder, a spring is fixedly installed on the inner side of the clamping plate, a movable plate is fixedly installed on the inner side of the spring, and a fixed plate is fixedly installed on the outer side of the shell. The polishing device for injection mold production is provided with a dust suction component. When grinding and polishing, the generated debris and dust will be absorbed into the collection bin by the dust suction component to protect the health of the staff. At the same time, a clamping component is provided to fix the workpiece by the clamping component to improve the stability during grinding and polishing, and the practicability is high. In the process of realizing the utility model, the inventors found that the prior art had the following problems: 1. The angle of the grinding roller of the existing polishing device is fixed. When it is necessary to polish molds of different shapes and sizes, the injection mold needs to be repeatedly disassembled and assembled to change the mold position and angle, which is cumbersome and wastes a lot of time; 2. The clamping part of the existing polishing device uses springs to clamp the mold at the front and back, but the springs will expand and contract due to vibration during the polishing process, causing the mold to be unstable or even deviate, affecting the polishing. Summary of the invention

[0004] The purpose of the utility model is to provide an automatic device for polishing the surface of an injection mold to solve the problems raised in the above background technology. To achieve the above purpose, the utility model provides the following technical solution: the automatic device for polishing the surface of an injection mold comprises a body, a clamping assembly is provided at the inner bottom of the body, and an angle adjustment assembly is provided at the inner top of the body.

[0005] Further preferably, the clamping assembly includes a base, the top of the base is respectively fixedly connected to a first motor and two guide rollers, the output end of the first motor is fixedly connected to a worm, one side of the worm is engaged with a rotating disk, the top of the rotating disk is provided with a spiral thread, and the top of the spiral thread is respectively movably connected to four clamping blocks and a fixed seat.

[0006] Further preferably, an annular groove is provided at the bottom of the rotating disk, the two guide rollers are rollingly connected inside the annular groove, a hole is provided in the middle of the rotating disk, the bottom of the fixed seat passes through the hole and is fixedly connected to the base, four sliding grooves are provided at the top of the fixed seat, the four sliding grooves correspond to four clamping blocks one by one and are slidably connected, and the bottoms of the four clamping blocks are engaged with the spiral thread.

[0007] Further preferably, the angle adjustment assembly includes a cross slide fixedly connected to the top inner side of the machine body, a cylinder is fixedly connected to the middle part of the bottom surface of the cross slide, an L-plate is fixedly connected to the output end of the cylinder, two fixed plates and a second motor are fixedly connected to the bottom of the L-plate respectively, a connecting shaft is rotatably connected between the two fixed plates, the connecting shaft respectively passes through the middle part of the two adjustment plates and the driven gear, a driving gear is fixedly connected to the output end of the second motor, a guide block is fixedly connected between the bottom ends of the two adjustment plates, a guide strip passes through the middle part of the guide block, and a polishing head is provided at the bottom of the guide block.

[0008] Further preferably, the driving gear and the driven gear mesh with each other to form a transmission structure.

[0009] Further preferably, an arc-shaped guide groove is opened in the middle of the guide block, and a guide bar is movably connected in the arc-shaped guide groove, and two ends of the guide bar are fixedly connected to the two inner walls of the L-plate.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model discloses a polishing head position is adjusted by a cross slide at the top, when the angle adjustment is needed, the second motor is started to drive the driving gear to rotate, the driving gear drives the connecting shaft to rotate through the driven gear, the connecting shaft rotation will drive the two adjustment plates connected thereto to rotate, the guide block at the bottom of the adjustment plate will rotate with the connecting shaft as the axis, and the guide block will be guided by the guide strip, so as to drive the polishing head at the bottom of the guide block to move, and the angle adjustment of the polishing head is realized to meet the polishing of injection molds of different shapes, without changing the angle of the injection mold and re-fixing it, thus saving a lot of time and improving the efficiency of the whole polishing work.

[0012] In the utility model, the worm is driven to rotate by the first motor, and the rotation of the worm drives the rotating disk to rotate. Due to the spiral thread on the top of the rotating disk, the four clamping blocks are driven to move synchronously to clamp and fix the injection mold in the middle. The four clamping blocks are equiangularly distributed on the fixed seat, and the front, back, left and right sides of the injection mold can be fixed at the same time. At the same time, the transmission method of the worm and the worm wheel is self-locking. Compared with the traditional spring fixing method, this structure can effectively avoid the occurrence of offset and loosening when the injection mold is polished. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 This is a right side cross-sectional structural diagram of the angle adjustment assembly of the utility model;

[0015] Figure 3 This is a schematic diagram of the main structure of the clamping assembly of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the annular groove of the utility model when viewed from above;

[0017] Figure 5 This is a schematic diagram of a half-section structure of the clamping assembly of the utility model;

[0018] Figure 6 It is a schematic diagram of the top view structure of the spiral thread of the utility model.

[0019] In the figure: 1. body; 2. clamping assembly; 201. base; 202. first motor; 203. guide roller; 204. worm; 205. rotating disk; 206. vortex thread; 207. clamping block; 208. fixed seat; 209. annular groove; 2010. slide groove; 3. angle adjustment assembly; 301. cross slide; 302. cylinder; 303. L plate; 304. fixed plate; 305. second motor; 306. connecting shaft; 307. adjustment plate; 308. driven gear; 309. driving gear; 3010. guide block; 3011. guide strip; 3012. polishing head. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 6The utility model provides a technical solution: an automatic device for polishing the surface of an injection mold, comprising a body 1, a clamping component 2 is provided at the inner bottom of the body 1, and an angle adjustment component 3 is provided at the inner top of the body 1.

[0022] In this embodiment, Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the clamping assembly 2 includes a base 201, the top of the base 201 is respectively fixedly connected to a first motor 202 and two guide rollers 203, the output end of the first motor 202 is fixedly connected to a worm 204, one side of the worm 204 is meshed with a rotating disk 205, the top of the rotating disk 205 is provided with a spiral thread 206, and the top of the spiral thread 206 is respectively movably connected to four clamping blocks 207 and a fixed seat 208.

[0023] In this embodiment, Figure 4 As shown, an annular groove 209 is provided at the bottom of the rotating disk 205, and two guide rollers 203 are rollingly connected inside the annular groove 209. A hole is provided in the middle of the rotating disk 205, and the bottom of the fixed seat 208 passes through the hole and is fixedly connected to the base 201. Four slide grooves 2010 are provided on the top of the fixed seat 208. The four slide grooves 2010 correspond to the four clamping blocks 207 one by one and are slidably connected. The bottoms of the four clamping blocks 207 are meshed with the vortex thread 206; the guide rollers 203 support the rotating disk 205 and ensure that the rotating disk 20 The worm 204 can rotate, thereby driving the top spiral thread 206 to rotate, so that the four clamping blocks 207 on the top move synchronously, thereby clamping and fixing the injection mold on the fixing seat 208. The structure has four clamping blocks 207 and is equiangularly distributed on the fixing seat 208, which can fix the front, back, left, and right sides of the injection mold at the same time. At the same time, the transmission method of the worm 204 and the worm wheel has self-locking properties. Compared with the traditional spring fixing method, this structure can effectively avoid the occurrence of displacement and loosening when polishing the injection mold.

[0024] In this embodiment, Figure 1 and Figure 2As shown, the angle adjustment component 3 includes a cross slide 301 fixedly connected to the top of the inner side of the body 1, a cylinder 302 is fixedly connected to the middle of the bottom surface of the cross slide 301, an L plate 303 is fixedly connected to the output end of the cylinder 302, two fixed plates 304 and a second motor 305 are fixedly connected to the bottom of the L plate 303, a connecting shaft 306 is rotatably connected between the two fixed plates 304, the connecting shaft 306 passes through the middle of the two adjustment plates 307 and the driven gear 308, a driving gear 309 is fixedly connected to the output end of the second motor 305, a guide block 3010 is fixedly connected between the bottom ends of the two adjustment plates 307, a guide strip 3011 passes through the middle of the guide block 3010, and a polishing head 3012 is provided at the bottom of the guide block 3010.

[0025] In this embodiment, Figure 2 As shown, the driving gear 309 and the driven gear 308 mesh with each other to form a transmission structure; the second motor 305 can drive the driven gear 308 to rotate through the driving gear 309, and finally drive the polishing head 3012 at the bottom to rotate around the connecting shaft 306, so as to adjust the angle of the polishing head 3012, so as to polish the injection mold from different angles, without changing the angle of the injection mold and re-fixing it, which saves a lot of time and improves the efficiency of the entire polishing work.

[0026] In this embodiment, Figure 1 and Figure 2 As shown, an arc-shaped guide groove is opened in the middle of the guide block 3010, and a guide bar 3011 is movably connected in the arc-shaped guide groove, and the two ends of the guide bar 3011 are fixedly connected to the two inner walls of the L plate 303; the guide bar 3011 can guide the guide block 3010, so that the guide block 3010 is more stable when rotating around the connecting shaft 306.

[0027] The use method and advantages of the utility model: When the type A is used, the working process is as follows:

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, first, the injection mold that needs rubber polishing is placed in the middle of the four clamping blocks 207, and then the first motor 202 is started to drive the worm 204 to rotate. The rotation of the worm 204 drives the rotating disk 205 to rotate. Due to the spiral thread 206 on the top of the rotating disk 205, the four clamping blocks 207 will be driven to move synchronously to clamp and fix the injection mold in the middle. The four clamping blocks 207 are equiangularly distributed on the fixing seat 208, which can fix the front, back, left and right sides of the injection mold at the same time. At the same time, the transmission method of the worm 204 and the worm wheel is self-locking. Compared with the traditional spring fixing method, this structure can effectively avoid the occurrence of offset loosening when polishing the injection mold, and then the cross slide 301 on the top is used to adjust the polishing The light head 3012 is in the position. When the angle adjustment is required, the second motor 305 is started to drive the driving gear 309 to rotate. The driving gear 309 drives the connecting shaft 306 to rotate through the driven gear 308. The rotation of the connecting shaft 306 will drive the two adjustment plates 307 connected thereto to rotate. The guide block 3010 at the bottom of the adjustment plate 307 will rotate around the connecting shaft 306, and the guide block 3010 will be guided by the guide strip 3011, thereby driving the polishing head 3012 at the bottom of the guide block 3010 to move, thereby realizing the angle adjustment of the polishing head 3012 to meet the polishing of injection molds of different shapes. There is no need to change the angle of the injection mold and re-fix it, which saves a lot of time and improves the efficiency of the entire polishing work.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An automated device for polishing the surface of an injection mold, comprising a body (1), characterized in that: The inner bottom of the body (1) is provided with a clamping assembly (2), and the inner top of the body (1) is provided with an angle adjustment assembly (3); The clamping assembly (2) comprises a base (201), the top of the base (201) is respectively fixedly connected to a first motor (202) and two guide rollers (203), the output end of the first motor (202) is fixedly connected to a worm (204), one side of the worm (204) is meshed with a rotating disk (205), the top of the rotating disk (205) is provided with a spiral thread (206), and the top of the spiral thread (206) is respectively movably connected to four clamping blocks (207) and a fixed seat (208); The angle adjustment assembly (3) comprises a cross slide (301) fixedly connected to the top of the inner side of the machine body (1); a cylinder (302) is fixedly connected to the middle of the bottom surface of the cross slide (301); an L plate (303) is fixedly connected to the output end of the cylinder (302); two fixed plates (304) and a second motor (305) are respectively fixedly connected to the bottom of the L plate (303); a connecting shaft (306) is rotatably connected between the two fixed plates (304); the connecting shaft (306) respectively passes through the middle of two adjustment plates (307) and a driven gear (308); a driving gear (309) is fixedly connected to the output end of the second motor (305); a guide block (3010) is fixedly connected between the bottom ends of the two adjustment plates (307); a guide strip (3011) passes through the middle of the guide block (3010); and a polishing head (3012) is provided at the bottom of the guide block (3010).

2. The automatic device for polishing the surface of an injection mold according to claim 1, characterized in that: The bottom of the rotating disk (205) is provided with an annular groove (209), the two guide rollers (203) are rollingly connected inside the annular groove (209), the middle of the rotating disk (205) is provided with a hole, the bottom of the fixed seat (208) passes through the hole and is fixedly connected to the base (201), the top of the fixed seat (208) is provided with four sliding grooves (2010), the four sliding grooves (2010) correspond to the four clamping blocks (207) one by one and are slidably connected, and the bottoms of the four clamping blocks (207) are meshed with the spiral thread (206).

3. The automatic device for polishing the surface of an injection mold according to claim 1, characterized in that: The driving gear (309) and the driven gear (308) mesh with each other to form a transmission structure.

4. The automatic device for polishing the surface of an injection mold according to claim 1, characterized in that: An arc-shaped guide groove is provided in the middle of the guide block (3010), and a guide bar (3011) is movably connected in the arc-shaped guide groove. The two ends of the guide bar (3011) are fixedly connected to the inner walls of the L plate (303).

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